High capacity compact disk player
DC
First Claim
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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.
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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.
20 Citations
29 Claims
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1. A CD player, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A CD recording system, comprising:
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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. - View Dependent Claims (11, 12, 13, 14)
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15. A method for playing a long-playing audio CD, comprising:
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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. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. A method for producing a long-playing audio CD, comprising:
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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. - View Dependent Claims (24, 25, 26, 27, 28, 29)
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Specification
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Litigation Data
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Current AssigneeTechSearch LLC (Acacia Research Corporation)
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Original AssigneeTechSearch LLC (Acacia Research Corporation)
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InventorsVidal, Joel, Krashin, Ari
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Primary Examiner(s)Huber, Paul W.
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Application NumberUS09/000,743Time in Patent Office1,197 DaysField of Search369/59, 369/84, 369/47, 369/48, 369/85, 369/124.06, 846/10, 704/503, 360/15, 360/13, 360/48US Class Current369/84CPC Class CodesG11B 20/00007 Time or data compression or...G11B 20/10527 Audio or video recording; D...G11B 2220/218 Write-once discsG11B 2220/2545 CDsG11B 27/034 on discs G11B27/036, G11B27...G11B 7/0037 with discs
