Patent US5493547A successfully refreshed from Google Patents.
US5493547A
Expired / Lapsed
US
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Recording eight digital audio channels on a single magneto optical disk
Assignee: Sony Corp
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Filing: 1993-09-30
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Granted: 1996-02-20
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Expires: 2013-09-30
Abstract
Abstract A method and apparatus for recording onto or playing back from a magneto optical disk eight channels of digital audio data. Eight channels of serial audio data, for example in a AES/EBU format is converted to parallel data and provided to one or more buffers via a DMA controller. After buffering, the data may be recorded onto a MO disk via an SCSI.
Inventors
- 👤 Michael A. Zampini
- 👤 Sean Stevens
- 👤 David C. Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:44
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/02; G11B5/09; G11B11/00; G11B11/10; G11B11/105; G11B11/10502; G11B20/00; G11B20/10; G11B20/10527; G11B27/00; G11B27/02; G11B27/031; G11B27/034; G11B27/10; G11B27/34; G11B27/36; G11B2020/10537; G11B2020/10592; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2525
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
128 words
An apparatus for recording and playing back digital audio signals comprising: input means for providing a plurality of channels of digital audio signals; buffer means for storing digital data signals; a direct memory access (DMA) controller for coupling the plurality of channels of digital audio signals to the buffer means; a magneto optical disk drive; and a small computer system interface (SCSI) for operatively coupling the MO disk drive with the DMA controller; wherein the plurality of channels of digital audio signals is stored by the buffer means and provided to the MO disk drive; wherein the input means includes means for converting the plurality of channels of audio data from serial data to parallel data; and wherein serial data is provided to the apparatus in AES/EBU format.
Claim 2
Independent Claim
128 words
An apparatus for recording and playing back digital audio signals comprising: input means for providing a plurality of channels of digital audio signals; buffer means for storing digital data signals; a direct memory access (DMA) controller for coupling the plurality of channels of digital audio signals to the buffer means; a magneto optical disk drive; and a small computer system interface (SCSI) for operatively coupling the MO disk drive with the DMA controller; wherein the plurality of channels of digital audio signals is stored by the buffer means and provided to the MO disk drive; wherein the input means includes means for converting the plurality of channels of audio data from serial data to parallel data; and wherein serial data is provided to the apparatus in AES/EBU format.
Claim 3
Dependent Claim
50 words
The apparatus of claim 1 further including output means coupled to the MO disk drive through the SCSI and the buffer means, the output means providing a plurality of channels of audio signals corresponding to a plurality of channels of audio data which has been stored on a MO disk.
Claim 4
Independent Claim
138 words
A method of recording and playing back digital audio signals comprising: providing a plurality of channels of digital audio signals to a player/recorder apparatus; coupling the plurality of channels of digital audio signals to a direct memory access (DMA) controller; storing the plurality of channels of digital audio signals in one or more buffers under control of the DMA controller; providing the digital audio data signals from the buffer or buffers to a magneto optical disk drive via a small computer system interface (SCSI); and recording the digital audio signals onto a magneto optical disk; wherein the step of providing a plurality of channels of digital audio signals to a player/recorder includes converting the plurality of channels of audio data from serial data to parallel data; and wherein serial data is provided to the apparatus in AES/EBU format.
Claim 5
Independent Claim
138 words
A method of recording and playing back digital audio signals comprising: providing a plurality of channels of digital audio signals to a player/recorder apparatus; coupling the plurality of channels of digital audio signals to a direct memory access (DMA) controller; storing the plurality of channels of digital audio signals in one or more buffers under control of the DMA controller; providing the digital audio data signals from the buffer or buffers to a magneto optical disk drive via a small computer system interface (SCSI); and recording the digital audio signals onto a magneto optical disk; wherein the step of providing a plurality of channels of digital audio signals to a player/recorder includes converting the plurality of channels of audio data from serial data to parallel data; and wherein serial data is provided to the apparatus in AES/EBU format.
Claim 6
Dependent Claim
36 words
The method of claim 3 further including providing from the apparatus a plurality of channels of audio signals corresponding to a plurality of channels of audio data which have been stored on said magneto optical disk.
Claim 7
Independent Claim
110 words
An apparatus for recording and playing back digital audio signals comprising: a small computer system interface (SCSI) for controlling a magneto optical disk drive; and input means for providing a plurality of channels of digital audio signals; a direct memory access (DMA) controller for coupling the plurality of channels of digital audio signals to the SCSI whereby digital signal corresponding to the plurality of channels of digital audio signals are provided to the magneto optical disk drive; wherein the input means includes means for converting the plurality of channels of audio data from serial data to parallel data; and wherein serial data is provided to the apparatus in AES/EBU format.
Claim 8
Independent Claim
110 words
An apparatus for recording and playing back digital audio signals comprising: a small computer system interface (SCSI) for controlling a magneto optical disk drive; and input means for providing a plurality of channels of digital audio signals; a direct memory access (DMA) controller for coupling the plurality of channels of digital audio signals to the SCSI whereby digital signal corresponding to the plurality of channels of digital audio signals are provided to the magneto optical disk drive; wherein the input means includes means for converting the plurality of channels of audio data from serial data to parallel data; and wherein serial data is provided to the apparatus in AES/EBU format.
Claim 9
Dependent Claim
50 words
The apparatus of claim 5 further including output means coupled to the MO disk drive through the SCSI and the buffer means, the output means providing a plurality of channels of audio signals corresponding to a plurality of channels of audio data which has been stored on a MO disk.
References Cited (Backward Citations)
US5129036A
Cited
US5303218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-02-19 | 1999-08-21 | 2000-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-02-19 | 2003-08-21 | 2004-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-02-19 | 2007-08-21 | 2008-02-20 | $7700.00 | Window Closed / Lapsed |