Method and apparatus for recording compressed audio data on recording medium and method for transferring compressed audio data

• US 6,097,557 A
• Filed: 05/27/1998
• Issued: 08/01/2000
• Est. Priority Date: 05/29/1997
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Takahashi, Toshihiko, Hiroyasu, Shoko, Kihara, Nobuyuki, Inoue, Hiraku
• Primary Examiner(s): FABER, ALAN
• Application Number:
  US09/084,417
• Time in Patent Office: 797 Days
• Field of Search: 360/18, 360/13, 360/15, 360/49, 360/60, 360/48, 360/72.2, 369/83, 369/32, 369/84
• US Class Current: 360/13
• CPC Class Codes: G10H 1/0058 Transmission between separate instruments or between individual components of a musical system G10H1/0083 takes precedence
• CPC Class Codes: G10H 2240/195 Reed-solomon error detection or correction, i.e. by considering the message symbols as polynomial coefficients
• CPC Class Codes: G10H 2240/245 ISDN [Integrated Services Digital Network]
• CPC Class Codes: G10H 2250/575 Adaptive MDCT-based compression, e.g. using a hybrid subband-MDCT, as in ATRAC non adaptive MDCT G10H2250/225
• 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 20/00753 wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
• CPC Class Codes: G11B 20/10 Digital recording or reproducing
• CPC Class Codes: G11B 20/10527 Audio or video recording; Data buffering arrangements G11B20/12 - G11B20/18 take precedence
• CPC Class Codes: G11B 20/1217 on discs
• CPC Class Codes: G11B 2020/1277 for managing gaps between two recordings, e.g. control data in linking areas, run-in or run-out fields, guard or buffer zones
• CPC Class Codes: G11B 2220/2529 Mini-discs
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/329 on a disc [VTOC]

Abstract

A transfer protocol in a transfer system adapted for transferring compressed audio signals in a compressed form for recording on a recording medium is disclosed. The management data for managing compressed audio signals recorded on the recording medium are generated responsive to the information sent from the server in order to generate the management data without exchanging the management data between the server and the client. A transfer system in which, if data are previously recorded on the recording medium loaded on the client side, the management data can be edited for additionally recording data on the recording medium without modifying the compressed audio data and management data already recorded on the recording medium, is also disclosed.

Claims

1. A recording apparatus for recording at least a compressed audio program on a recording medium having a management area and a recordable area, comprising:

receiving means for receiving said compressed audio program and capacity size data corresponding to the size of said compressed audio program transmitted via a transfer path;

recording means for recording said compressed audio program from said receiving means in said recordable area of said recording medium; and

generating means for generating said management information including start and end addresses of said compressed audio program in accordance with said capacity size data;

wherein said recording means records said management information including said start and end addresses of said compressed audio program in said management area of said recording medium.

2. The recording apparatus as claimed in claim 1 wherein said receiving means receives identification data corresponding to said compressed audio program transmitted via said transfer path and said recording means records said identification data in said management area of said recording medium.

3. The recording apparatus as claimed in claim 2 wherein the identification data is at least one of copy protection information, copy generation information, audio channel information and emphasis data.

4. The recording apparatus as claimed in claim 1 wherein said receiving means receives a program name corresponding to said compressed audio program transmitted via said transfer path and said recording means records said program name in said management area of said recording medium.

5. The recording apparatus as claimed in claim 4 further comprising:

memory means for storing said program name corresponding to said compressed audio program to be recorded, said program name being received prior to reception of said compressed audio program to be recorded.

6. The recording apparatus as claimed in claim 4 wherein said program name corresponding to said compressed audio program to be recorded is received subsequent to reception of said compressed audio program to be recorded.

7. The recording apparatus as claimed in claim 4 wherein said compressed audio program and said program name corresponding to said compressed audio program to be recorded are received alternatively.

8. The recording apparatus as claimed in claim 1 wherein said receiving means further receives a number of characters representing a program name via said transfer path said recording means records said program name in said management area of said recording medium.

9. The recording apparatus as claimed in claim 1 wherein said capacity size data corresponding to the size of said compressed audio program to be recorded is received prior to reception of said compressed audio program to be recorded.

10. The recording apparatus as claimed in claim 1 wherein said capacity size data corresponding to said compressed audio program to be recorded is received subsequent to reception of said compressed audio program to be recorded.

11. The recording apparatus as claimed in claim 1 wherein said compressed audio program and said capacity size data corresponding to the size of said compressed audio program to be recorded are received alternately.

12. A transfer/reception system having a transferring system for transferring at least one compressed audio program and a receiving system for receiving a transferred compressed audio program, said transferring system comprising:

generating means for generating a program capacity size corresponding to a size of said compressed audio program,

transferring means for transferring said compressed audio program and said program capacity size to said receiving system;

said receiving system comprising;

receiving means for receiving said compressed audio program and said program capacity size;

generating means for generating management information in accordance with said program capacity size; and

recording means for recording said compressed audio program and said management information in a recordable area and in said management area of a recording medium, respectively,

whereby said transferred compressed audio program is divided into plural compressed audio programs in accordance with said program capacity size.

13. The transfer/reception system as claimed in claim 12 wherein said transferring means also transfers identification data corresponding to said compressed audio program.

14. The transfer/reception system as claimed in claim 13 wherein identification data is at least one of copy protection information, copy generation information, audio channel data and emphasis data.

15. The transfer/reception system as claimed in claim 13 wherein said transferring means also transfers a program name corresponding to said compressed audio program.

16. The transfer/reception system as claimed in claim 13 wherein said transferring means also transfers a number of characters representing a program name.

17. The transfer/reception system as claimed in claim 13 wherein said transferring means also transfers a number of characters representing a program name, and said recording means records said program name in said management area of said recording medium.

18. The transfer/reception system as claimed in claim 12 wherein said receiving means also receives identification data corresponding to said compressed audio program and said recording means records said identification data in said management area of said recording medium.

19. The transfer/reception system as claimed in claim 18 wherein the identification data is at least one of copy protection information, copy generation information, audio channel data and emphasis data.

20. The transfer/reception system as claimed in claim 18 wherein said receiving means also receives a program name corresponding to said compressed audio program said recording means records said program name in said management area of said recording medium.

21. A transferring/receiving method for transferring at least one compressed audio program and receiving a transferred compressed audio program, comprising the steps of:

generating a program capacity size corresponding to the size of said compressed audio program;

transferring said compressed audio program and said program capacity size;

receiving said transferred compressed audio program and said program capacity size;

generating management information in accordance with said program capacity size; and

recording said compressed audio program and said management information in a recordable area and in a management area of said recording medium, respectively,

whereby a transferred audio program is divided into a plurality of compressed audio programs in accordance with said program capacity size.