Data decoding recording apparatus

• US 20010012440A1
• Filed: 01/30/2001
• Published: 08/09/2001
• Est. Priority Date: 02/07/2000
• Status: Abandoned Application

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Itoi, Satoshi
• Application Number:
  US09/772,767
• Publication Number:
  US 20010012440A1
• Time in Patent Office: Days
• US Class Current: 386/94
• 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 20/00768 wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 27/024 on tapes G11B27/028, G11B27/029 take precedence
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/036 Insert-editing
• CPC Class Codes: H04N 2005/91328 the copy protection signal being a copy management signal, e.g. a copy generation management signal [CGMS]
• CPC Class Codes: H04N 21/4135 external recorder interface circuits between an apparatus for recording television signals and a television receiver H04N5/775
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/42646 for reading from or writing on a non-volatile solid state storage medium, e.g. DVD, CD-ROM
• CPC Class Codes: H04N 21/42661 for reading from or writing on a magnetic storage medium, e.g. hard disk drive
• CPC Class Codes: H04N 21/4334 Recording operations recording of a television signal H04N5/76; arrangements for recording or accumulating broadcast information or broadcast-related information H04H60/27
• CPC Class Codes: H04N 21/43632 involving a wired protocol, e.g. IEEE 1394 high-speed IEEE 1394 serial bus H04L12/40052
• CPC Class Codes: H04N 21/4385 Multiplex stream processing, e.g. multiplex stream decrypting
• CPC Class Codes: H04N 21/454 Content or additional data filtering, e.g. blocking advertisements
• CPC Class Codes: H04N 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/812 involving advertisement data advertising per se G06Q30/02
• CPC Class Codes: H04N 21/8355 involving usage data, e.g. number of copies or viewings allowed
• CPC Class Codes: H04N 5/60 : for the sound signals
• CPC Class Codes: H04N 5/775 : between a recording apparatus and a television receiver
• CPC Class Codes: H04N 5/781 : on disks or drums
• CPC Class Codes: H04N 5/85 : on discs or drums
• CPC Class Codes: H04N 5/913 : for scrambling ; for copy protection

Abstract

A data decoding recording apparatus is disclosed which facilitates, when contents of a received digital broadcast are recorded in accordance with a copy control code, editing and preservation of the recorded contents. A digital broadcasting radio wave is subject to demodulation, Viterbi decoding and error correction processing with the Reed-Solomon code by a tuner section and is outputted as a transport stream. A general control section receives the transport stream, extracts a copy control code from the received transport stream and analyzes the copy control code. When the copy control code is “00”, the general control section controls a hard disk drive to record the contents through a digital interface section. When the copy control code is “10”, the general control section either controls one of an optical disk drive and a video tape recorder to record or controls both of the optical disk drive and the video tape recorder or all of the hard disk drive, the optical disk drive and the video tape recorder to record the contents.

Claims

1. A data decoding recording apparatus capable of receiving and decoding a digital broadcast and recording contents of data of the received digital broadcast by a plurality of recording apparatus for different recording media in response to a copy control code included in the received data, comprising:

control means for extracting and analyzing the copy control code from the received data and selecting and controlling one or those of said recording apparatus which should execute a recording operation regarding the received data in response to a result of the analysis of the copy control code.

2. A data decoding recording apparatus as claimed in

claim 1

, wherein said recording apparatus include a hard disk drive and an optical disk apparatus, and when the copy control code represents a copy-free condition, said control means controls said hard disk drive to record the contents, but when the copy control code represents permission of copying only once, said control means either controls said optical disk drive to record the contents or controls both of said hard disk drive and said optical disk apparatus to record the contents.

3. A data decoding recording apparatus as claimed in

claim 1

, wherein the recording apparatus include a hard disk drive and a video tape recorder, and when the copy control code represents a copy-free condition, said control means controls said hard disk drive to record the contents, but when the copy control code represents permission of copying only once, said control means either controls said video tape recorder to record the contents or controls both of said hard disk drive and said video tape recorder to record the contents.

4. A data decoding recording apparatus as claimed in

claim 1

, wherein the recording apparatus include an optical disk apparatus and a video tape recorder, and when the copy control code represents a copy-free condition, said control means controls said video tape recorder to record the contents, but when the copy control code represents permission of copying only once, said control means either controls said optical disk apparatus to record the contents or controls both of said optical disk apparatus and said video tape recorder to record the contents.

5. A data decoding recording apparatus as claimed in

claim 1

, wherein the recording apparatus include a hard disk drive, an optical disk apparatus and a video tape recorder, and when the copy control code represents a copy-free condition, said control means controls said hard disk drive to record the contents, but when the copy control code represents permission of copying only once, said control means either controls one of said optical disk apparatus and said video tape recorder or both of said optical disk apparatus and said video tape recorder to record the contents or controls all of said hard disk drive, said optical disk apparatus and said video tape recorder to record the contents.

6. A data decoding recording apparatus according to claim 1, wherein, when the copy control code represents permission of copying only once, said control means deletes any unnecessary portion included in the contents in accordance with a rule determined in advance and controls any of said recording apparatus to copy the remaining portion of the contents.

7. A data decoding recording apparatus according to

claim 1

, wherein said control means controls any of said recording apparatus to record contents whose copy control code represents permission of copying only once and which are considered not to include a commercial message portion but controls any of said recording apparatus to record contents whose copy control code represents a copy-free condition and which are considered to include a commercial message portion.

8. A data decoding recording apparatus according to

claim 1

, wherein, when the copy control code represents permission of copying only once, said control means secures two or more sound streams as sound data recording areas for the contents in advance and records the received sound data into the sound data recording area for one of the sound streams but fills the remaining one or more streams with a particular stuffing bit so that sound data may be additionally recorded into the stream or streams filled with the stuffing bits.

9. A data decoding recording apparatus according to

claim 1

, wherein, when the copy control code represents permission of copying only once, said control means inhibits recording into a partially erased area of a recording medium of any of said recording apparatus and causes data to be recorded continuously to the last end of the recorded data without fail.