Data processing system having data reproduction independent of data processing

• US 7,126,770 B1
• Filed: 10/27/2000
• Issued: 10/24/2006
• Est. Priority Date: 10/29/1999
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sato, Hiroaki, Yodo, Fumitake, Kumagai, Takashi, Arai, Toshiyuki, Oyama, Masami, Inai, Hajime
• Primary Examiner(s): Young, Wayne
• Assistant Examiner(s): Rodriguez, Glenda P.
• Application Number:
  US09/697,917
• Time in Patent Office: 2,188 Days
• Field of Search: 360/8, 360/15, 360/60, 704/500, 704/503, 704/501, 704/504, 386/101, 386/104, 386/112, 386/105, 386/106, 369/84, 369/85, 369/47.28, 369/47.3, 369/47.29
• US Class Current: 360/8
• 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 20/10527 Audio or video recording; Data buffering arrangements G11B20/12 - G11B20/18 take precedence
• CPC Class Codes: G11B 2220/213 Read-only discs
• CPC Class Codes: G11B 2220/2525 Magneto-optical [MO] discs
• CPC Class Codes: G11B 2220/2545 CDs
• CPC Class Codes: G11B 2220/2562 DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
• CPC Class Codes: G11B 27/005 Reproducing at a different information rate from the information rate of recording for television signals H04N5/783
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/11 by using information not detectable on the record carrier
• CPC Class Codes: G11B 27/329 on a disc [VTOC]
• CPC Class Codes: G11B 27/34 Indicating arrangements indicating means incorporated in magazine or cassette G11B23/046 and G11B23/0875; indicating measured values in general G01D
• CPC Class Codes: G11B 31/00 Arrangements for the associated working of recording or reproducing apparatus with related apparatus with cameras or projectors G03B31/00 ; recording/reproducing of music for electrophonic musical instruments G10H1/0033; automatic arrangements for answering calls or for recording messages for absent subscribers H04M1/64; telephonic communication systems adapted for combination with dictation recording and playback systems H04M11/10; connection of TV recorder with other related apparatus, e.g. TV camera or receiver, in which the TV signal is significantly involved H04N, e.g. H04N23/00, H04N5/765; combination of radio or TV with other apparatus, e.g. with vehicles H05K11/00
• CPC Class Codes: H04R 5/02 Spatial or constructional arrangements of loudspeakers

Abstract

High rate writing of data recorded on a CD into a hard disk drive (HDD) is performed while reproducing data read out of the CD at the standard bit rate prescribed for the CD. PCM data corresponding to a playback time of 10 seconds, for example, is read out of a CD and stored in a memory for subsequent read out. In parallel, data for writing is read out of the CD and stored in the memory. The data read out of the memory is coded and compressed by an encoder and then stored back in the memory. When the data stored in the memory for playback has become smaller than a predetermined amount, an interrupt is generated during the writing process with the processing, which is given top priority, so that a next set of playback data is read out of the CD and stored in the memory.

Claims

1. An apparatus for writing and reproducing data comprising:

processing means for processing inputted data and producing processed data;

storage means for storing said processed data in a storage medium;

decompression means for decompressing processed data stored in said storage medium and producing decompressed data;

reproducing means for reproducing said decompressed data while new input data is being processed by said processing means; and

control means for controlling said storage means to store said new input data processed by said processing means in said storage medium during reproducing of said decompressed data by said reproducing means,

wherein said processing means includes means for compressing said inputted data and producing compressed data, and

wherein said storage means stores said compressed data in said storage medium and said decompression means decompresses selected compressed data, that can be different from said compressed inputted data, also stored in said storage medium.

2. An apparatus according to claim 1, wherein said storage means stores said compressed data in said storage medium and said decompression means decompresses compressed data stored in said storage medium.

3. An apparatus according to claim 1, wherein said processing means compresses said inputted data into MPEG format.

4. An apparatus according to claim 1, further comprising a reading out means for reading out data stored in a second storage medium and producing read-out data, wherein said processing means inputs said read out data and processes said read-out data.

5. An apparatus according to claim 4, wherein said second storage medium comprises a disc shaped storage medium.

6. An apparatus according to claim 4, wherein said second storage medium comprises a non volatile memory.

7. An apparatus according to claim 1, wherein said processing means includes means for processing data inputted from an external source via communication lines.

8. An apparatus according to claim 1, wherein said storage medium is a removable medium.

9. An apparatus according to claim 1, wherein said storage medium comprises a hard disk.

10. An apparatus for writing and reproducing data comprising:

processing means for processing inputted data and producing processed data;

storage means for storing said processed data in a storage medium;

decompression means for decompressing processed data stored in said storage medium and producing decompressed data;

reproducing means for reproducing said decompressed data while new input data is being processed by said processing means; and

control means for controlling said storage means to store said new input data processed by said processing means in said storage medium during reproducing of said decompressed data by said reproducing means,

wherein said processing means comprises a converting means for converting a format of said inputted data, and

wherein said inputted data is compressed in a predetermined compression format and said converting means comprises second decompression means for decompressing said inputted compressed data and a compression means for compressing said decompressed data in another compression format.

11. An apparatus for writing and reproducing data comprising:

processing means for processing inputted data and producing processed data;

storage means for storing said processed data in a storage medium;

decompression means for decompressing processed data stored in said storage medium and producing decompressed data;

reproducing means for reproducing said decompressed data while new input data is being processed by said processing means;

control means for controlling said storage means to store said new input data processed by said processing means in said storage medium during reproducing of said decompressed data by said reproducing means; and

reading out means for reading out data stored in said storage medium therefrom at a predetermined reading out data rate,

wherein said control means controls said storage means to write said processed data at a faster writing data rate than said predetermined reading out data rate.

12. An apparatus according to claim 11, wherein said storage medium is a portable medium.

13. An apparatus for reproducing data comprising:

converting means for converting inputted data of a first compression format into converted data of a second compression format;

outputting means for outputting said converted data converted by said converting means;

reproducing means for reproducing data corresponding to said converted data; and

control means for controlling said outputting means to output said converted data concurrently with the reproducing of said data by said reproducing means,

wherein said converting means comprises decompression means for decompressing said inputted compression data and compression means for compressing said decompressed data into said data of said second compression format.

14. An apparatus according to claim 13, wherein said reproducing means reproduces said decompressed data decompressed by said decompression means.

15. An apparatus according to claim 13, wherein said outputting means writes said converted data in a storage medium, and said apparatus further comprises:

reading out means for reading out said data of said second compression format stored in said storage medium from said storage medium; and

second decompression means for decompressing said read out compression data,

wherein said reproducing means reproduces decompressed data decompressed by said second decompression means.

16. An apparatus according to claim 15, wherein

said reading out means reads out said compression data of said second compression format stored in said storage medium at a predetermined reading out data rate and said control means controls said outputting means to write said said compression data of said second compression format at a faster writing data rate than said predetermined reading out data rate.

17. An apparatus according to claim 15, wherein said storage medium is a removable medium.

18. An apparatus according to claim 17, wherein said storage medium is a portable medium.

19. An apparatus according to claim 15, wherein said storage medium comprises a hard disk.

20. An apparatus according to claim 13, wherein said converting means compresses said inputted data into MPEG format.

21. An apparatus according to claim 13, wherein said converting means converts said compression data inputted from an external source via communication lines.

22. An apparatus for reproducing data comprising:

converting means for converting inputted data of a first compression format into converted data of a second compression format;

outputting means for outputting said converted data converted by said converting means;

reproducing means for reproducing data corresponding to said converted data;

control means for controlling said outputting means to output said converted data concurrently with the reproducing of said data by said reproducing means; and

reading out means for reading out compression data stored in a storage medium,

wherein said converting means converts said read out compression data of said first compression format to said converted data of said second compression format.

23. An apparatus according to claim 22, wherein said storage medium comprises a disc shaped storage medium.

24. An apparatus according to claim 22, wherein said storage medium comprises a non volatile memory.

25. An apparatus for reproducing data comprising:

processing means for processing inputted data according to a predetermined requirement;

outputting means for outputting data generated by the processing means as output data;

reproducing means for reproducing data generated by the processing means; and

control means for controlling said outputting means to output said output data during reproducing of the data by said reproducing means, wherein the reproduced data can be different data than the output data produced by said outputting means.

26. An apparatus according to claim 25, wherein said processing means includes means for decompressing said inputted data, wherein when said inputted data is compressed in a compression format, and said means for decompressing performs a decompression process corresponding to said compression format and produces decompressed data, and

wherein said reproducing means reproduces said decompressed data.

27. An apparatus according to claim 25, wherein said reproducing means reproduces, when said inputted data is uncompressed data, said uncompression data supplied through said processing means.

28. An apparatus according to claim 25, wherein said outputting means outputs, when said inputted data is compressed data, said compression data supplied through said processing means.

29. An apparatus according to claim 25, wherein, when said inputted data is uncompressed data, said processing means compresses said uncompression data in a desired compression format and said outputting means outputs compressed data from said processing means.

30. An apparatus according to claim 25, wherein said outputting means writes said supplied data in a storage medium, and said apparatus further comprises:

reading out means for reading out data stored in said storage medium, and said control means controls said reading out means to read out data stored in said storage medium that is different from said supplied data and controls said reproducing means to reproduce said read out data during writing of said supplied data in said storage medium by said outputting means.

31. An apparatus according to claim 30, wherein said storage medium is a removable medium.

32. An apparatus according to claim 31, wherein said storage medium is a portable medium.

33. An apparatus according to claim 30, wherein said storage medium comprises a hard disk.

34. An apparatus according to claim 30 wherein said reading out means reads out data stored in said storage medium at a predetermined reading out data rate and said control means controls said outputting means to write said supplied data at a faster writing data rate than said predetermined reading out data rate in said storage medium.

35. An apparatus according to claim 25, further comprising reading out means for reading out data stored in a storage medium,

wherein said processing means processes said read out data as required.

36. An apparatus according to claim 35, wherein said storage medium comprises a disc shaped storage medium.

37. An apparatus according to claim 35, wherein said storage medium comprises a non volatile memory.

38. An apparatus according to claim 25, wherein said processing means processes data inputted from an external source via communication lines.

39. An apparatus according to claim 25, wherein said processing means compresses said inputted data into MPEG format.

40. A method for writing and reproducing data comprising:

processing inputted data and producing processed data;

storing said processed data in a storage medium;

decompressing processed data stored in said storage medium;

reproducing decompressed data obtained in said decompressing while new input data is processed in said processing; and

controlling storing of said new input data processed in said processing in said storage medium during reproducing of said decompressed data, wherein the reproduced data can be different data than said output data produced in the processing.

41. A method for reproducing data comprising:

converting inputted compression data of a first compression format into converted data of a second compression format;

outputting said converted data;

reproducing data corresponding to said converted data; and

controlling outputting of said converted data concurrently with the reproducing of said converted data, wherein

the reproduced data can be different data than said output data produced in the outputting.

42. A method for reproducing data comprising:

processing inputted data as required;

outputting data generated in the processing step as output data;

reproducing data generated in the processing step; and

controlling to output said output data during reproducing of the data in the reproducing step, wherein the reproduced data can be different data than said output data produced in the outputting.