USRE44044EExpiredUtility

High capacity compact disk player

43
Assignee: VIDAL JOELPriority: Dec 30, 1997Filed: Nov 24, 2004Granted: Mar 5, 2013
Est. expiryDec 30, 2017(expired)· nominal 20-yr term from priority
Inventors:Joel VidalAri Krashin
G11B 7/0037G11B 27/034G11B 20/10527G11B 20/00007G11B 2220/218G11B 2220/2545
43
PatentIndex Score
0
Cited by
139
References
37
Claims

Abstract

A CD player, including a CD drive, which receives a CD and reads compressed digital audio data recorded thereon, and an integrated circuit chip, which decompresses the compressed data and produces a non-compressed audio output. Preferably, the data are compressed by MPEG compression, most preferably by MPEG Layer-3 compression, so that the data are compressed approximately 12-fold, and the CD contains over 800 minutes of high-quality stereo sound recording.

Claims

exact text as granted — not AI-modified
1. A CD player, comprising:
 a CD drive, which receives a CD and reads MPEG Layer-3 compressed digital audio data recorded thereon; and   an integrated circuit chip, which decompresses the MPEG Layer-3 compressed data in real time and produces a non-compressed audio output.   
     
     
       2. A CD player according to  claim 1 , wherein the data are compressed at least 4-fold. 
     
     
       3. A CD player according to  claim 2 , wherein the data are compressed at least 8-fold. 
     
     
       4. A CD player according to  claim 3 , wherein the data are compressed approximately 12-fold. 
     
     
       5. A CD player according to  claim 1 , wherein the chip includes firmware for decompressing the data. 
     
     
       6. A CD player according to  claim 1 , wherein the chip comprises a custom integrated circuit chip. 
     
     
       7. A CD player according to  claim 1 , wherein the chip does not comprise a general purpose processor. 
     
     
       8. A CD player according to  claim 1 , wherein the CD player comprises a mobile personal audio player. 
     
     
       9. A CD player according to  claim 8 , wherein the CD player is installed in a vehicle. 
     
     
       10. A CD recording system, comprising:
 a read drive, which receives and reads a first CD having audio data recorded thereon; 
 compression circuitry, which receives and compresses the audio data from the read drive by MPEG Layer-3 compression in real time; and 
 a write drive, which receives the audio data compressed by MPEG Layer-3 compression and records the audio data compressed by MPEG Layer-3 compression on a second, recordable CD. 
 
     
     
       11. A CD system according to  claim 10 , wherein the circuitry includes firmware for compressing the data. 
     
     
       12. A CD system according to  claim 10 , wherein the circuitry compresses the data at least 4-fold. 
     
     
       13. A CD system according to  claim 12 , wherein the circuitry compresses the data at least 8-fold. 
     
     
       14. A CD system according to  claim 13 , wherein the circuitry compresses the data approximately 12-fold. 
     
     
       15. A method for playing a long-playing audio CD, comprising:
 reading MPEG Layer-3 compressed digital audio data from the CD; and   decompressing the MPEG Layer-3 compressed data in real time using a integrated circuit chip; and   converting resulting decompressed data to analog form.   
     
     
       16. A method according to  claim 15 , wherein decompressing the data comprises decompressing by MPEG decoding. 
     
     
       17. A method according to  claim 16  wherein decompressing the data comprises decompressing by MPEG Layer-3 decoding. 
     
     
       18. A method according to  claim 15 , wherein decompressing the data comprises decompressing by at least 4-fold. 
     
     
       19. A method according to  claim 18 , wherein decompressing the data comprises decompressing by at least 8-fold. 
     
     
       20. A method according to  claim 19 , wherein decompressing the data comprises decompressing by approximately 12-fold. 
     
     
       21. A method according to  claim 15 , wherein reading the compressed data comprises playing the CD in a mobile personal audio player. 
     
     
       22. A method according to  claim 15 , wherein reading the compressed data comprises playing the CD in a CD player installed in a vehicle. 
     
     
       23. A method for producing a long-playing audio CD, comprising:
 reading MPEG Layer-3 compressed digital audio data from a prerecorded CD;   compressing the data using MPEG Layer-3 compression in real time; and   recording resulting MPEG Layer-3 compressed data on the long-playing CD.   
     
     
       24. A method according to  claim 23 , wherein compressing the data comprises compressing by at least 4-fold. 
     
     
       25. A method according to  claim 24 , wherein compressing the data comprises compressing by at least 8-fold. 
     
     
       26. A method according to  claim 25 , wherein compressing the data comprises compressing by approximately 12-fold. 
     
     
       27. A method according to  claim 23 , wherein reading the data comprises reading data from a plurality of prerecorded CDs. 
     
     
       28. A method according to  claim 27 , wherein reading the data comprises inserting each of the plurality of CDs in sequence into a read drive, in order to read data therefrom. 
     
     
       29. A method according to  claim 23 , wherein recording the data comprises recording data on the long-playing CD in an order that is different from the order of the data on the prerecorded CD. 
     
     
       30. The CD recording system of claim 10, wherein the decompression circuitry comprises a decoder chip. 
     
     
       31. The CD recording system of claim 30, wherein the decoder chip is a MPEG decoder chip. 
     
     
       32. The CD recording system of claim 10, wherein the compression circuitry includes a custom VLSI chip. 
     
     
       33. The CD recording system of claim 10, wherein the compression circuitry includes a custom ASIC chip. 
     
     
       34. A CD recording system, comprising:
 only a single read and write CD drive, which receives and reads a CD having audio data recorded thereon;   compression circuitry, which receives and compresses the audio data from the read and write CD drive by MPEG Layer-3 compression in real time; and   a mass-memory device, which stores the audio data compressed by the compression circuitry and sends the audio data compressed by MPEG Layer-3 compression to the read and write CD drive to be written into a recordable CD.   
     
     
       35. The CD recording system of claim 34, wherein the compression circuitry includes a custom VLSI chip. 
     
     
       36. The CD recording system of claim 34, wherein the compression circuitry includes a custom ASIC chip. 
     
     
       37. The system of claim 34, wherein the CD drive reads a CD having uncompressed audio data recorded thereon.

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