Information recording and reproducing apparatus

• US 6,295,099 B1
• Filed: 11/28/1994
• Issued: 09/25/2001
• Est. Priority Date: 03/12/1992
• Status: Expired due to Fees

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Takahashi, Koji
• Primary Examiner(s): Harvey, David E.
• Application Number:
  US08/345,863
• Time in Patent Office: 2,493 Days
• Field of Search: H04/N.5907, 348/714-718, 348/559, 348/460, 348/231, 348/232, 348/233, 386/77, 386/95, 386/108, 386/109, 386/112, 386/121, 386/124, 386/125
• US Class Current: 348/715
• CPC Class Codes: G11B 2220/61 wherein solid state memory is used for storing A/V content storing computer data in solid state memories G06F
• CPC Class Codes: G11B 27/031 Electronic editing of digitised analogue information signals, e.g. audio or video signals
• CPC Class Codes: H04N 9/8042 involving data reduction

Abstract

An information recording and reproducing apparatus includes a solid-state memory medium for memorizing serial moving-image information and a reproducing circuit for reproducing a plurality of pieces of moving-image information from the solid-state memory medium in parallel.

Claims

1. A reproducing apparatus comprising:

a reproducing means for reproducing an information signal from a solid-state memory, the information signal being composed of a plurality of blocks each of which has a compressed image signal and additional information for disabling a normal reproduction of the compressed image signal stored in the solid state memory; and

expanding means for expanding an information amount of the compressed image signal reproduced from the solid-state memory, wherein the normal reproduction of the image signal from the solid-state memory is disabled according to the additional information of the plurality of blocks.

2. An apparatus according to claim 1, wherein the additional information includes a logical erasing flag.

3. An apparatus according to claim 1, wherein the image signal represents a moving image and the image signal is compressed according to MPEG system.

4. An apparatus according to claim 1, wherein the additional information has a fixed length.

5. A recording apparatus comprising:

compressing means for compressing an information amount of an image signal; and

recording means for forming an information signal composed of a plurality of blocks each of which has the compressed image signal and additional information for disabling a normal reproduction of the compressed image signal and for recording the information signal into a solid-state memory, wherein the normal reproduction of the compressed image signal from the solid-state memory is disabled according to the additional information of the plurality of blocks.

6. An apparatus according to claim 5, wherein the image signal represents a moving image and said compressing means compresses the image signal in accordance with MPEG system.

7. An apparatus according to claim 5, wherein the plurality of blocks of the information signal also have an audio signal.

8. An apparatus according to claim 5, wherein the additional information includes a logical erasing flag.

9. An apparatus according to claim 5, wherein the additional information have a fixed length.

10. A recording apparatus comprising:

input means for inputting an image signal representing a moving image;

generating means for dividing the input image signal every predetermined period and for obtaining an information signal composed of a plurality of blocks each of which has the divided image signal and additional information for disabling a normal reproduction of the image signal by adding the additional information to the divided image signal; and

recording means for recording the information signal in a recording medium, wherein the normal reproduction of the image signal by said reproducing means from the recording medium is disabled according to the additional information of the plurality of blocks.

11. An apparatus according to claim 10, wherein said generating means comprises compressing means for compressing an information amount of the divided image signal in accordance with MPEG system.