Digital information recording-reproducing apparatus

• US 6,807,364 B2
• Filed: 06/19/2001
• Issued: 10/19/2004
• Est. Priority Date: 06/07/1993
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Yamazaki, Shigeru, Okamoto, Hiroo, Noguchi, Takaharu, Arai, Takao, Amada, Nobutaka
• Primary Examiner(s): NGUYEN, HUY THANH
• Application Number:
  US09/883,175
• Publication Number:
  US 20010043415A1
• Time in Patent Office: 1,218 Days
• Field of Search: 386/46, 386/94, 386/95, 386/112, 386/83, 386/54, 380/201
• US Class Current: 386/248
• CPC Class Codes: G11B 15/1875 adaptations for special effects or editing signal processing or indexing therefor G11B27/00
• CPC Class Codes: G11B 20/00007 Time or data compression or expansion audio compression based on psychoacoustics G10L19/00; data processing for reproducing audio data at different playback speeds G10L21/04; video compression H04N19/00; data compression per se H03M7/30
• CPC Class Codes: G11B 20/00086 Circuits for prevention of unauthorised reproduction or copying, e.g. piracy indicating unauthorised use of record carriers in general G11B23/28; scrambling for television signal recording H04N5/913; network architectures or network protocols for network security H04L63/00; cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
• CPC Class Codes: G11B 20/00188 involving measures which result in a restriction to authorised devices recording or reproducing contents to/from a record carrier
• CPC Class Codes: G11B 20/0021 involving encryption or decryption of contents recorded on or reproduced from a record carrier
• CPC Class Codes: G11B 20/00246 wherein the key is obtained from a local device, e.g. device key initially stored by the player or by the recorder
• CPC Class Codes: G11B 20/00557 wherein further management data is encrypted, e.g. sector headers, TOC or the lead-in or lead-out areas
• CPC Class Codes: G11B 20/00695 said measures preventing that data are read from the recording medium
• CPC Class Codes: G11B 20/0071 involving a purchase action
• CPC Class Codes: G11B 20/0084 wherein the usage restriction can be expressed as a specific time or date
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/3036 Time code signal
• CPC Class Codes: G11B 5/00813 magnetic tapes
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/78263 for recording on tracks inclined relative to the direction of movement of the tape
• CPC Class Codes: H04N 5/919 by dividing samples or signal segments, e.g. television lines, among a plurality of recording channels
• CPC Class Codes: H04N 5/9201 involving the multiplexing of an additional signal and the video signal
• CPC Class Codes: H04N 5/9261 involving data reduction
• CPC Class Codes: H04N 5/9265 with processing of the sound signal

Abstract

A digital information recording-reproducing apparatus for recording and reproducing a digital information signal which includes a recording circuit for recording the digital information signal together with control information, and a reproducing circuit for detecting the recorded control information at a time the recorded digital information signal is to be reproduced, and reproducing the recorded digital information signal only if the detected control information satisfies a predetermined condition.

Claims

1. A digital information recording-reproducing apparatus which records and reproduces a digital information signal, comprising:

a recorder which records the digital information signal together with control information; and

a reproducer which detects the recorded control information at a time the recorded digital information signal is to be reproduced, and reproduces the recorded digital information signal only if the detected control information satisfies a predetermined condition;

wherein the control information includes type information specifying a type of the digital information signal and a predetermined condition under which the digital information signal is allowed to be reproduced;

wherein the reproducer reproduces the recorded digital information signal only if the predetermined condition specified by the type information is satisfied at a time the recorded digital information signal is to be reproduced; and

wherein the reproducer reproduces the recorded digital information signal only if a time at which the recorded digital information is to be reproduced is within a time period during which the recorded digital information signal is allowed to be reproduced.

2. A digital information recording-reproducing apparatus according to claim 1,

wherein the recorded digital information signal is an encrypted digital information signal; and

wherein the reproducer decrypts the encrypted digital information signal when the reproducer reproduces the recorded digital information signal.

3. A digital information reproducing apparatus which reproduces a recorded digital information signal having control information recorded therewith, comprising:

a detector which detects the recorded control information; and

a reproducer which reproduces the recorded digital information signal only if the detected control information satisfies a predetermined condition;

wherein the control information includes type information specifying a type of the digital information signal and a predetermined condition under which the digital information signal is allowed to be reproduced;

wherein the reproducer reproduces the recorded digital information signal only if the predetermined condition specified by the type information is satisfied at a time the recorded digital information signal is to be reproduced; and

wherein the reproducer reproduces the recorded digital information signal only if a time at which the recorded digital information is to be reproduced is within a time period during which the recorded digital information signal is allowed to be reproduced.

4. A digital information reproducing apparatus according to claim 3,

wherein the recorded digital information signal is an encrypted digital information signal; and

wherein the reproducer decrypts the encrypted digital information signal.

5. A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with additional information, comprising:

a discriminator which discriminates a type of the digital information signal based on the additional information;

a recorder which generates control information to be used for reproduction control based on the additional information, adds the control information to the digital information signal, and records the digital information signal having the control information added thereto; and

a reproducer which reproduces the recorded digital information signal having the control information added thereto, only when the recorded digital information signal was recorded by the recorder;

wherein the control information is used to control reproduction of the recorded digital information signal; and

wherein, when the discriminator discriminates the type of the digital information signal as being a specific type of digital information signal based on the control information, the reproducer reproduces the recorded digital information signal only when the recorded digital information signal was recorded by the recorder included in the digital information recording-reproducing apparatus regardless of an intention of a user of the digital information recording-reproducing apparatus to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another digital information recording-reproducing apparatus.

6. A digital information recording-reproducing apparatus according to claim 5, wherein the specific type of digital information signal is a digital information signal which has been sold.

7. A digital information recording-reproducing apparatus according to claim 5, wherein the specific type of digital information signal is a digital information signal which has been rented.

8. A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with additional information, comprising:

a discriminator which discriminates a type of the digital information signal based on the additional information;

a recorder which generates control information to be used for reproduction control based on the additional information, adds the control information to the digital information signal, and records the digital information signal having the control information added thereto; and

a reproducer which reproduces the recorded digital information signal only when the recorded digital information signal was recorded by the recorder;

wherein the additional information determines whether reproduction of the recorded digital information signal will be permitted only by a digital information recording-reproducing apparatus including a recorder which recorded the recorded digital information signal based on an intention of a transmitter of the digital information signal regardless of an intention of a user of the digital information recording-reproducing apparatus to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another digital information recording-reproducing apparatus.

9. A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with additional information, comprising:

a discriminator which discriminates a type of the digital information signal based on the additional information;

a recorder which generates control information to be used for reproduction control based on the additional information, adds the control information to the digital information signal, and records the digital information signal having the control information added thereto; and

a reproducer which reproduces the recorded digital information signal only when the recorded digital information signal was recorded by the recorder;

wherein the additional information is specified by a transmitter of the digital information signal; and

wherein the additional information includes information relating to whether the transmitter of the digital information signal will permit only a digital information recording-reproducing apparatus including a recorder which recorded the recorded digital information signal to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another digital information recording-reproducing apparatus.

10. A digital information recording-reproducing apparatus according to claim 9, wherein the additional information includes information indicating that the digital information signal has been sold.

11. A digital information recording-reproducing apparatus according to claim 9, wherein the additional information includes information indicating that the digital information signal has been rented.

12. A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with additional information, comprising:

a discriminator which discriminates a type of the digital information signal;

a recorder which generates control information based on the additional information, adds the control information to the digital information signal, and records the digital information signal having the control information added thereto; and

a reproducer which, when the type of the digital information signal is a specific type, inhibits reproduction of the recorded digital information signal having the control information added thereto, when the recorded digital information signal was not recorded by the recorder;

wherein the control information is used to control reproduction of the recorded digital information signal; and

wherein, when the discriminator discriminates the type of the digital information signal as being a specific type of digital information signal based on the control information, the reproducer inhibits reproduction of the recorded digital information signal when the recorded digital information signal was not recorded by the recorder included in the digital information recording-reproducing apparatus regardless of an intention of a user of the digital information recording-reproducing apparatus to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by the reproducer of the digital information recording-reproducing apparatus when recorded by a recorder of another digital information recording-reproducing apparatus.

13. A digital information recording-reproducing apparatus according to claim 12, wherein the specific type of digital information signal is a digital information signal which has been sold.

14. A digital information recording-reproducing apparatus according to claim 12, wherein the specific type of digital information signal is a digital information signal which has been rented.

15. A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with additional information, comprising:

a discriminator which discriminates a type of the digital information signal based on the additional information;

a recorder which generates control information to be used for reproduction control based on the additional information, adds the control information to the digital information signal, and records the digital information signal having the control information added thereto; and

a reproducer which, when the type of the digital information signal is a specific type, inhibits reproduction of the recorded digital information signal when the recorded digital information signal was not recorded by the recorder;

wherein the additional information determines whether reproduction of the recorded digital information signal will be inhibited by an apparatus other than an apparatus by which the recorded digital information signal was recorded based on an intention of a transmitter of the digital information signal regardless of an intention of

a user of the digital information recording-reproducing apparatus to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by the reproducer of the digital information recording-reproducing apparatus when recorded by a recorder of another digital information recording-reproducing apparatus.

16. A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with additional information, comprising:

a discriminator which discriminates a type of the digital information signal based on the additional information;

a recorder which generates control information to be used for reproduction control based on the additional information, adds the control information to the digital information signal, and records the digital information signal having the control information added thereto; and

a reproducer which, when the type of the digital information signal is a specific type, inhibits reproduction of the recorded digital information signal when the recorded digital information signal was not recorded by the recorder;

wherein the additional information is specified by a transmitter of the digital information signal; and

wherein the additional information includes information relating to whether the transmitter of the digital information signal will require an apparatus other than an apparatus by which the recorded digital information signal was recorded to inhibit reproduction of the recorded digital information signal so that the recorded digital information signal cannot be reproduced by the reproducer of the digital information recording-reproducing apparatus when recorded by a recorder of another digital information recording-reproducing apparatus.

17. A digital information recording-reproducing apparatus according to claim 16, wherein the additional information includes information indicating that the digital information signal has been sold.

18. A digital information recording-reproducing apparatus according to claim 16, wherein the additional information includes information indicating that the digital information signal has been rented.

19. A digital information recording-reproducing method, comprising the steps of:

receiving a digital information signal transmitted together with additional information, the additional information including a type of the digital information signal;

recording the received digital information signal on a recording medium; and

when the type of the digital information signal included in the additional information is a specific type of digital information signal, permitting reproduction of the recorded digital information signal only by an apparatus by which the recorded digital information signal was recorded;

wherein the additional information determines whether reproduction of the recorded digital information signal is to be permitted; and

wherein, when the type of the digital information signal included in the additional information is a specific type of digital information signal, the step of permitting reproduction of the recorded digital information signal includes the step of permitting reproduction of the recorded digital information signal only by an apparatus by which the recorded digital information signal was recorded regardless of an intention of a user to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another apparatus which did not record the recorded digital information.

20. A digital information recording-reproducing method according to claim 19, wherein the specific type of digital information signal is a digital information signal which has been sold.

21. A digital information recording-reproducing method according to claim 19 wherein the specific type of digital information signal is a digital information signal which has been rented.

22. A digital information recording-reproducing method, comprising the steps of:

receiving a digital information signal transmitted together with additional information, the additional information including a type of the digital information signal;

recording the received digital information signal on a recording medium; and

when the type of the digital information signal included in the additional information is a specific type, permitting reproduction of the recorded digital information signal only by an apparatus by which the recorded digital information signal was recorded;

wherein the type of the digital information signal included in the additional information determines whether reproduction of the recorded digital information signal will be permitted only by the apparatus by which the recorded digital information signal was recorded based on an intention of a transmitter of the digital information signal regardless of an intention of a user to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another apparatus which did not record the recorded digital information signal.

23. A digital information recording-reproducing method, comprising the steps of:

receiving a digital information signal transmitted together with additional information, the additional information including a type of the digital information signal;

recording the received digital information signal on a recording medium; and

when the type of the digital information signal included in the additional information is a specific type, permitting reproduction of the recorded digital information signal only by an apparatus by which the recorded digital information signal was recorded;

wherein the additional information is specified by a transmitter of the digital information signal; and

wherein the type of the digital information signal included in the additional information relates to whether the transmitter of the digital information signal will permit only the apparatus by which the recorded digital information signal was recorded to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another apparatus which did not record the recorded digital information signal.

24. A digital information recording-reproducing method according to claim 23, wherein the type of the digital information signal included in the additional information indicates that the digital information signal is a digital information signal which has been sold.

25. A digital information recording-reproducing method according to claim 23, wherein the type of the digital information signal included in the additional information indicates that the digital information signal is a digital information signal which has been rented.

26. A digital information recording-reproducing method, comprising the steps of:

receiving a digital information signal transmitted together with additional information, the additional information including a type of the digital information signal;

recording the received digital information signal on a recording medium; and

when the type of the digital information signal included in the additional information is a specific type, inhibiting reproduction of the recorded digital information signal by an apparatus other than an apparatus by which the recorded digital information signal was recorded;

wherein when the type of the digital information signal included in the additional information is a specific type of digital information signal, the step of inhibiting reproduction of the recorded digital information signal includes the step of inhibiting reproduction of the recorded digital information signal by an apparatus other than an apparatus by which the recorded digital information signal was recorded regardless of an intention of a user to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by a reproducer of the apparatus when the recorded digital information signal was recorded by a recorder of another apparatus.

27. A digital information recording-reproducing method according to claim 26, wherein the specific type of digital information signal is a digital information signal which has been sold.

28. A digital information recording-reproducing method according to claim 26, wherein the specific type of digital information signal is a digital information signal which has been rented.

29. A digital information recording-reproducing method, comprising the steps of:

receiving a digital information signal transmitted together with additional information, the additional information including a type of the digital information signal;

recording the received digital information signal on a recording medium; and

when the type of the digital information signal included in the additional information is a specific type, inhibiting reproduction of the recorded digital information signal by an apparatus other than an apparatus by which the recorded digital information signal was recorded;

wherein the type of the digital information signal included in the additional information determines whether reproduction of the recorded digital information signal will be inhibited by an apparatus other than an apparatus by which the recorded digital information signal was recorded based on an intention of a transmitter of the digital information signal regardless of an intention of a user to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by a reproducer of the apparatus when the recorded digital information signal was recorded by a recorder of another apparatus.

30. A digital information recording-reproducing method, comprising the steps of:

receiving a digital information signal transmitted together with additional information, the additional information including a type of the digital information signal;

recording the received digital information signal on a recording medium; and

when the type of the digital information signal included in the additional information is a specific type, inhibiting reproduction of the recorded digital information signal by an apparatus other than an apparatus by which the recorded digital information signal was recorded;

wherein the additional information is specified by a transmitter of the digital information signal; and

wherein the type of the digital information signal included in the additional information relates to whether the transmitter of the digital information signal will require an apparatus other than an apparatus by which the recorded digital information signal was recorded to inhibit reproduction of the recorded digital information signal so that the recorded digital information signal cannot be reproduced by a reproducer of the apparatus when the recorded digital information signal was recorded by a recorder of another apparatus.

31. A digital information recording-reproducing method according to claim 30, wherein the type of the digital information signal included in the additional information indicates that the digital information signal is a digital information signal which has been sold.

32. A digital information recording-reproducing method according to claim 30, wherein the type of the digital information signal included in the additional information indicates that the digital information signal is a digital information signal which has been rented.

33. A digital information transmitting method for transmitting a digital information signal to a recording-reproducing apparatus which records and reproduces the digital information signal, comprising the steps of:

adding additional information to a digital information signal, the additional information including a type of the digital information signal; and

transmitting the digital information signal having the additional information added thereto through a transmission path;

wherein after the recording-reproducing apparatus records the digital information signal, when the type of the digital information signal included in the additional information is a specific type, the additional information is used for controlling reproduction of the recorded digital information signal by permitting reproduction of the recorded digital information signal only by a recording-reproducing apparatus by which the recorded digital information signal was recorded; and

wherein after the recording-reproducing apparatus records the digital information signal, when the type of the digital information signal included in the additional information is a specific type of digital information signal, the additional information is used for controlling reproduction of the recorded digital information signal by permitting reproduction of the recorded digital information signal only by a recording-reproducing apparatus by which the recorded digital information signal was recorded regardless of an intention of a user of the recording-reproducing apparatus to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another recording-reproducing apparatus.

34. A digital information transmitting method according to claim 33, wherein the specific type of digital information signal is a digital information signal which has been sold.

35. A digital information transmitting method according to claim 33, wherein the specific type of digital information signal is a digital information signal which has been rented.

36. A digital information transmitting method for transmitting a digital information signal to a recording-reproducing apparatus which records and reproduces the digital information signal, comprising the steps of:

adding additional information to a digital information signal, the additional information including a type of the digital information signal; and

transmitting the digital information signal having the additional information added thereto through a transmission path;

wherein after the recording-reproducing apparatus records the digital information signal, when the type of the digital information signal included in the additional information is a specific type, the additional information is used for controlling reproduction of the recorded digital information signal by permitting reproduction of the recorded digital information signal only by a recording-reproducing apparatus by which the recorded digital information signal was recorded; and

wherein the type of the digital information signal included in the additional information determines whether reproduction of the recorded digital information signal will be permitted only by the recording-reproducing apparatus by which the recorded digital information signal was recorded based on an intention of a transmitter of the digital information signal regardless of an intention of a user of the recording-reproducing apparatus to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another recording-reproducing apparatus.

37. A digital information transmitting method for transmitting a digital information signal to a recording-reproducing apparatus which records and reproduces the digital information signal, comprising the steps of:

adding additional information to a digital information signal, the additional information including a type of the digital information signal; and

transmitting the digital information signal having the additional information added thereto through a transmission path;

wherein after the recording-reproducing apparatus records the digital information signal, when the type of the digital information signal included in the additional information is a specific type, the additional information is used for controlling reproduction of the recorded digital information signal by permitting reproduction of the recorded digital information signal only by a recording-reproducing apparatus by which the recorded digital information signal was recorded;

wherein the additional information is specified by a transmitter of the digital information signal; and

wherein the type of the digital information signal included in the additional information relates to whether the transmitter of the digital information signal will permit only the recording-reproducing apparatus by which the recorded digital information signal was recorded to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another recording-reproducing apparatus.

38. A digital information transmitting method according to claim 37, wherein the type of the digital information signal included in the additional information indicates that the digital information signal is a digital information signal which has been sold.

39. A digital information transmitting method according to claim 37, wherein the type of the digital information signal included in the additional information indicates that the digital information signal is a digital information signal which has been rented.

40. A digital information transmitting method for transmitting a digital information signal to a recording-reproducing apparatus which records and reproduces the digital information signal, comprising the steps of:

adding additional information to the digital information signal, the additional information including a type of the digital information signal; and

transmitting the digital information signal having the additional information added thereto through a transmission path;

wherein after the recording-reproducing apparatus records the digital information signal, when the type of the digital information signal included in the additional information is a specific type, the additional information is used for controlling reproduction of the recorded digital information signal by inhibiting reproduction of the recorded digital information signal by an apparatus other than a recording-reproducing apparatus by which the recorded digital information signal was recorded; and

wherein after the recording-reproducing apparatus records the digital information signal, when the type of the digital information signal included in the additional information is a specific type of digital information signal, the additional information is used for controlling reproduction of the recorded digital information signal by inhibiting reproduction of the recorded digital information signal by an apparatus other than a recording-reproducing apparatus by which the recorded digital information signal was recorded regardless of an intention of a user of the recording-reproducing apparatus to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by a reproducer of the recording-reproducing apparatus when the digital information signal was recorded by a recorder of another recording-reproducing apparatus.

41. A digital information transmitting method according to claim 40, wherein the specific type of digital information signal is a digital information signal which has been sold.

42. A digital information transmitting method according to claim 40, wherein the specific type of digital information signal is a digital information signal which has been rented.

43. A digital information transmitting method for transmitting a digital information signal to a recording-reproducing apparatus which records and reproduces the digital information signal, comprising the steps of:

adding additional information to the digital information signal, the additional information including a type of the digital information signal; and

transmitting the digital information signal having the additional information added thereto through a transmission path;

wherein after the recording-reproducing apparatus records the digital information signal, when the type of the digital information signal included in the additional information is a specific type, the additional information is used for controlling reproduction of the recorded digital information signal by inhibiting reproduction of the recorded digital information signal by an apparatus other than a recording-reproducing apparatus by which the recorded digital information signal was recorded; and

wherein the type of the digital information signal included in the additional information determines whether reproduction of the recorded digital information signal will be inhibited by an apparatus other than a recording-reproducing apparatus by which the recorded digital information signal was recorded based on an intention of a transmitter of the digital information signal regardless of an intention of a user of the apparatus other than the recording-reproducing apparatus by which the recorded digital information signal was recorded to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by a reproducer of the recording-reproducing apparatus when the digital information signal was recorded by a recorder of another recording-reproducing apparatus.

44. A digital information transmitting method for transmitting a digital information signal to a recording-reproducing apparatus which records and reproduces the digital information signal, comprising the steps of:

adding additional information to the digital information signal, the additional information including a type of the digital information signal; and

transmitting the digital information signal having the additional information added thereto through a transmission path;

wherein after the recording-reproducing apparatus records the digital information signal, when the type of the digital information signal included in the additional information is a specific type, the additional information is used for controlling reproduction of the recorded digital information signal by inhibiting reproduction of the recorded digital information signal by an apparatus other than a recording-reproducing apparatus by which the recorded digital information signal was recorded;

wherein the additional information is specified by a transmitter of the digital information signal; and

wherein the type of the digital information signal included in the additional information relates to whether the transmitter of the digital information signal will require an apparatus other than a recording-reproducing apparatus by which the recorded digital information signal was recorded to inhibit reproduction of the recorded digital information signal so that the recorded digital information signal cannot be reproduced by a reproducer of the recording-reproducing apparatus when the digital information signal was recorded by a recorder of another recording-reproducing apparatus.

45. A digital information transmitting method according to claim 44, wherein the type of the digital information signal included in the additional information indicates that the digital information signal is a digital information signal which has been sold.

46. A digital information transmitting method according to claim 44, wherein the type of the digital information signal included in the additional information indicates that the digital information signal is a digital information signal which has been rented.

47. A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with additional information, the additional information including a type of the digital information signal, comprising:

a recorder which records the digital information signal together with control information, the control information including the type of the digital information signal included in the additional information; and

a reproducer which detects the recorded control information at a time the recorded digital information signal is to be reproduced, and when the type of the digital information signal included in the detected control information is a specific type, reproduces the recorded digital information signal only when the detected control information satisfies a predetermined condition;

wherein the control information recorded by the recorder includes ID information identifying a digital information recording-reproducing apparatus which includes the recorder which recorded the digital information signal;

wherein when the type of the digital information signal included in the detected control information is the specific type, the reproducer reproduces the recorded digital information signal only when the control information detected by the reproducer includes ID information which coincides with ID information identifying a digital information recording-reproducing apparatus which includes the reproducer which detected the control information;

wherein when the type of the digital information signal included in the detected control information is a specific type of digital information signal, the reproducer reproduces the recorded digital information signal only when the detected control information satisfies a predetermined condition regardless of an intention of a user of the digital information recording-reproducing apparatus to reproduce the recorded digital information signal; and

wherein when the type of the digital information signal included in the detected control information is the specific type of digital information signal, the reproducer reproduces the recorded digital information signal only when the control information detected by the reproducer includes ID information which coincides with ID information identifying a digital information recording-reproducing apparatus which includes the reproducer which detected the control information regardless of an intention of a user of the digital information recording-reproducing apparatus to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another digital information recording-reproducing apparatus.

48. A digital information recording-reproducing apparatus according to claim 47, wherein the specific type of digital information signal is a digital information signal which has been sold.

49. A digital information recording-reproducing apparatus according to claim 47, wherein the specific type of digital information signal is a digital information signal which has been rented.

50. A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with additional information, the additional information including a type of the digital information signal, comprising:

a recorder which records the digital information signal together with control information, the control information including the type of the digital information signal included in the additional information; and

a reproducer which detects the recorded control information at a time the recorded digital information signal is to be reproduced, and when the type of the digital information signal included in the detected control information is a specific type, reproduces the recorded digital information signal only when the detected control information satisfies a predetermined condition;

wherein the control information recorded by the recorder includes ID information identifying a digital information recording-reproducing apparatus which includes the recorder which recorded the digital information signal;

wherein when the type of the digital information signal included in the detected control information is the specific type, the reproducer reproduces the recorded digital information signal only when the control information detected by the reproducer includes ID information which coincides with ID information identifying a digital information recording-reproducing apparatus which includes the reproducer which detected the control information; and

wherein the type of the digital information signal included in the additional information determines whether reproduction of the recorded digital information signal will be permitted only by the digital information recording-reproducing apparatus which includes the recorder which recorded the recorded digital information signal based on an intention of a transmitter of the digital information signal regardless of an intention of a user of the digital information recording-reproducing apparatus to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another digital information recording-reproducing apparatus.

51. A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with additional information, the additional information including a type of the digital information signal, comprising:

a recorder which records the digital information signal together with control information, the control information including the type of the digital information signal included in the additional information; and

a reproducer which detects the recorded control information at a time the recorded digital information signal is to be reproduced, and when the type of the digital information signal included in the detected control information is a specific type, reproduces the recorded digital information signal only when the detected control information satisfies a predetermined condition;

wherein the control information recorded by the recorder includes ID information identifying a digital information recording-reproducing apparatus which includes the recorder which recorded the digital information signal;

wherein when the type of the digital information signal included in the detected control information is the specific type, the reproducer reproduces the recorded digital information signal only when the control information detected by the reproducer includes ID information which coincides with ID information identifying a digital information recording-reproducing apparatus which includes the reproducer which detected the control information;

wherein the additional information is specified by a transmitter of the digital information signal; and

wherein the type of the digital information signal included in the additional information relates to whether the transmitter of the digital information signal will permit only the digital information recording-reproducing apparatus which includes the recorder which recorded the recorded digital information signal to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another digital information recording-reproducing apparatus.

52. A digital information recording-reproducing apparatus according to claim 51, wherein the type of the digital information signal included in the additional information indicates that the digital information signal has been sold.

53. A digital information recording-reproducing apparatus according to claim 51, wherein the type of the digital information signal included in the additional information indicates that the digital information signal has been rented.

54. A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with additional information, comprising:

means for receiving a digital information signal transmitted together with additional information;

a recorder which generates control information to be used for reproduction control based on the additional information, adds the control information to the digital information signal, and records the digital information signal having the control information added thereto; and

a reproducer which reproduces the recorded digital information signal based on the control information;

wherein the additional information determines whether the reproducer will be permitted to reproduce a recorded digital information signal based on an intention of a transmitter of the digital information signal regardless of an intention of a user of the digital information recording-reproducing apparatus to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by another digital information recording-reproducing apparatus.

55. A digital information recording-reproducing apparatus according to claim 54,

wherein the additional information includes type information indicating a type of the digital information signal; and

wherein when the type information included in the additional information indicates that the digital information signal is a specific type of digital information signal, the reproducer reproduces the recorded digital information signal only when the recorded digital information signal was recorded by the recorder included in the digital information recording-reproducing apparatus.

56. A digital information recording-reproducing apparatus according to claim 55, wherein the additional information includes information indicating that the digital information signal has been sold.

57. A digital information recording-reproducing apparatus according to claim 55, wherein the additional information includes information indicating that the digital information signal has been rented.

58. A digital information recording-reproducing apparatus according to claim 54,

wherein the additional information includes type information indicating a type of the digital information signal;

and

wherein when the type information included in the additional information indicates that the digital information signal is a specific type of digital information signal,

the recorded digital information signal is a recorded encrypted digital information signal, and

when the reproducer is permitted to reproduce the recorded digital information signal,

the reproducer reproduces the recorded encrypted digital information signal to produce a reproduced encrypted digital information signal, and

the reproducer decrypts the reproduced encrypted digital information signal based on information stored in the digital information recording-reproducing apparatus to produce a decrypted digital information signal.

59. A digital information recording-reproducing apparatus which records and reproduces a digital information signal transmitted together with additional information, comprising:

a recorder which generates control information to be used for reproduction control based on the additional information, adds the control information to the digital information signal, and records the digital information signal having the control information added thereto; and

a reproducer which reproduces the recorded digital information signal based on the control information;

wherein when the digital information signal is a specific type of digital information signal, the reproducer inhibits reproduction of a recorded digital information signal when the recorded digital information signal was not recorded by the recorder included in the digital information recording-reproducing apparatus; and

wherein the additional information determines whether the reproducer will be required to inhibit reproduction of the recorded digital information signal based on an intention of a transmitter of the digital information signal regardless of an intention of a user of the digital information recording-reproducing apparatus to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by the reproducer of the digital information recording-reproducing apparatus when the digital information signal was recorded by a recorder of another digital information recording-reproducing apparatus.

60. A digital information recording-reproducing apparatus according to claim 59,

wherein the additional information includes type information indicating a type of the digital information signal; and

wherein when the type information included in the additional information indicates that the digital information signal is the specific type of digital information signal, the reproducer inhibits reproduction of the recorded digital information signal when the recorded digital information signal was not recorded by the recorder included in the digital information recording-reproducing apparatus.

61. A digital information recording-reproducing apparatus according to claim 60, wherein the additional information includes information indicating that the digital information signal has been sold.

62. A digital information recording-reproducing apparatus according to claim 60, wherein the additional information includes information indicating that the digital information signal has been rented.

63. A digital information recording-reproducing apparatus according to claim 59,

wherein the additional information includes type information indicating a type of the digital information signal;

and

wherein when the type information included in the additional information indicates that the digital information signal is a specific type of digital information signal,

the recorded digital information signal is a recorded encrypted digital information signal, and

when the reproducer is not required to inhibit reproduction of the recorded digital information signal,

the reproducer reproduces the recorded encrypted digital information signal to produce a reproduced encrypted digital information signal, and

the reproducer decrypts the reproduced encrypted digital information signal based on information stored in the digital information recording-reproducing apparatus to produce a decrypted digital information signal.

64. A digital information recording-reproducing method, comprising the steps of:

receiving a digital information signal transmitted together with additional information;

recording the received digital information signal with a recorder of an apparatus; and

when the digital information signal is a specific type of digital information signal, permitting reproduction of the recorded digital information signal with a reproducer of the apparatus based on an intention of a transmitter of the digital information signal regardless of an intention of a user to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by a reproducer of another apparatus which does not record the recorded digital information signal,

wherein the additional information determines whether reproduction of the recorded digital information signal is to be permitted.

65. A digital information recording-reproducing method according to claim 64,

wherein the additional information includes type information indicating a type of the digital information signal; and

wherein when the type information included in the additional information indicates that the digital information signal is the specific type of digital information signal, the step of permitting reproduction of the recorded digital signal includes the step of permitting reproduction of the recorded digital information signal only by an apparatus by which the recorded digital information signal was recorded.

66. A digital information recording-reproducing method according to claim 65, wherein the additional information includes information indicating that the digital information signal has been sold.

67. A digital information recording-reproducing method according to claim 65, wherein the additional information includes information indicating that the digital information signal has been rented.

68. A digital information recording-reproducing method according to claim 64,

wherein the additional information includes type information indicating a type of the digital information signal;

wherein when the type information included in the additional information indicates that the digital information signal is the specific type of digital information signal,

the recorded digital information signal is a recorded encrypted digital information signal, and

when reproduction of the recorded digital information signal is permitted in the step of permitting reproduction of the recorded digital information signal, the digital information recording-reproducing method further comprises the steps of;

reproducing the recorded encrypted digital information signal with an apparatus to produce a reproduced encrypted digital information signal, and

decrypting the reproduced encrypted digital information signal based on information stored in the apparatus to produce a decrypted digital information signal.

69. A digital information recording-reproducing method, comprising the steps of:

receiving a digital information signal transmitted together with additional information;

recording the received digital information signal; and

when the digital information signal is a specific type of digital information signal, inhibiting reproduction of a recorded digital information signal by an apparatus other than an apparatus by which the recorded digital information signal was recorded based on an intention of a transmitter of the digital information signal regardless of an intention of a user to reproduce the recorded digital information signal so that the recorded digital information signal cannot be reproduced by a reproducer of the apparatus when the digital information signal was recorded by another apparatus,

wherein the additional information determines whether reproduction of the recorded digital information signal is to be inhibited.

70. A digital information recording-reproducing method according to claim 69,

wherein the additional information includes type information indicating a type of the digital information signal;

wherein when the type information included in the additional information indicates that the digital information signal is the specific type of digital information signal, the step of inhibiting reproduction of the recorded digital information signal includes the step of inhibiting reproduction of the recorded digital information signal by an apparatus other than an apparatus by which the recorded digital information signal was recorded.

71. A digital information recording-reproducing method according to claim 70, wherein the additional information includes information indicating that the digital information signal has been sold.

72. A digital information recording-reproducing method according to claim 70, wherein the additional information includes information indicating that the digital information signal has been rented.

73. A digital information recording-reproducing method according to claim 69,

wherein the additional information includes type information indicating a type of the digital information signal;

and

wherein when the type information included in the additional information indicates that the digital information signal is the specific type of digital information signal,

the recorded digital information signal is a recorded encrypted digital information signal, and

when reproduction of the recorded digital information signal is not inhibited in the step of inhibiting reproduction of the recorded digital signal, the digital information recording-reproducing method further comprises the steps of

reproducing the recorded encrypted digital information signal with an apparatus to produce a reproduced encrypted digital information signal, and

decrypting the reproduced encrypted digital information signal based on information stored in the apparatus to produce a decrypted digital information signal.