US5999508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording medium, recording apparatus, reproducing method, and reproducing apparatus
Assignee: Sony Corp
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Filing: 1999-01-21
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Granted: 1999-12-07
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Expires: 2019-01-21
Abstract
Abstract A recording medium to which this invention is applied includes a first recording area 3 where a digital audio signal sampled at a predetermined sampling frequency and quantized by a predetermined number of bits is recorded, a first management area 2 where information for carrying out management of the digital audio signal recorded in the first recording area 3 is recorded, a second recording area 6 where a digital audio signal corresponding to the digital audio signal recorded in the first recording area 3 is recorded, and a second management area 5 where information for carrying out management of the digital audio signal recorded in the second recording area 6 is recorded, wherein discrimination data indicating that plural recording areas exist is recorded in the first management area 2. Thus, this recording medium has compatibility with the conventional CD player, and can be reproduced in the state of high sound quality by a higher rank reproducing equipment.
Inventors
- 👤 Teppei Yokota
- 👤 Ayataka Nishio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:08
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/007; G11B7/0079; G11B20/00; G11B20/10; G11B20/10527; G11B20/12; G11B20/1217; G11B20/1252; G11B27/00; G11B27/02; G11B27/031; G11B27/034; G11B27/10; G11B27/102; G11B27/105; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/3063; G11B27/32; G11B27/327; G11B27/329; G11B7/002; G11B7/0037; G11B7/00736; G11B20/1251; G11B2020/10537; G11B2020/10546; G11B2020/10592; G11B2020/1087; G11B2020/10888; G11B2220/00; G11B2220/20; G11B2220/21; G11B2220/213; G11B2220/215; G11B2220/218; G11B2220/25; G11B2220/2537; G11B2220/2545; G11B2220/2583; G11B7/004; G11B7/005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
101 words
A recording apparatus for recording information to a recording medium having plural areas, the recording apparatus comprising: a converter section that converts an input analog signal to a digital audio signal at a predetermined sampling frequency; a quantizing section that quantizes the digital audio signal by a predetermined number of bits; a separating section that separates the digital audio signal quantized by the predetermined number of bits to upper bits and lower bits; and a recording section that records the upper bits to one of the plurality of areas and the lower bits to another of the plurality of areas, respectively.
Claim 2
Dependent Claim
101 words
A recording apparatus for recording information to a recording medium having plural areas, the recording apparatus comprising: a converter section that converts an input analog signal to a digital audio signal at a predetermined sampling frequency; a quantizing section that quantizes the digital audio signal by a predetermined number of bits; a separating section that separates the digital audio signal quantized by the predetermined number of bits to upper bits and lower bits; and a recording section that records the upper bits to one of the plurality of areas and the lower bits to another of the plurality of areas, respectively.
Claim 3
Dependent Claim
97 words
A recording apparatus for recording information to a recording medium having plural areas, the recording apparatus comprising: converting means for converting an input analog signal to a digital audio signal at a predetermined sampling frequency; quantizing means for quantizing the digital audio signal by a predetermined number of bits; separating means for separating the digital audio signal quantized by the predetermined number of bits to upper bits and lower bits; and recording means for recording the upper bits to one of the plurality of areas and the lower bits to another of the plurality of areas, respectively.
Claim 4
Dependent Claim
97 words
A recording apparatus for recording information to a recording medium having plural areas, the recording apparatus comprising: converting means for converting an input analog signal to a digital audio signal at a predetermined sampling frequency; quantizing means for quantizing the digital audio signal by a predetermined number of bits; separating means for separating the digital audio signal quantized by the predetermined number of bits to upper bits and lower bits; and recording means for recording the upper bits to one of the plurality of areas and the lower bits to another of the plurality of areas, respectively.
Claim 5
Dependent Claim
25 words
A recording apparatus as set forth in claim 2, wherein time code corresponding to a first recording area is recorded in a second recording area.
Claim 6
Dependent Claim
49 words
A recording apparatus as set forth in claim 2, wherein the recording apparatus further includes a recording section which includes: a first recording head for recording digital audio information into a first recording area; and a second recording head for recording digital audio information into a second recording area.
Claim 7
Dependent Claim
84 words
A recording method for recording information to a recording medium having plural areas, the method comprising: converting an input analog signal to a digital audio signal at a predetermined sampling frequency; quantizing the digital audio signal by a predetermined number of bits; separating the digital audio signal quantized by the predetermined number of bits to upper bits and lower bits; and recording the upper bits to one of the plurality of areas and the lower bits to another of the plurality of areas, respectively.
Claim 8
Dependent Claim
84 words
A recording method for recording information to a recording medium having plural areas, the method comprising: converting an input analog signal to a digital audio signal at a predetermined sampling frequency; quantizing the digital audio signal by a predetermined number of bits; separating the digital audio signal quantized by the predetermined number of bits to upper bits and lower bits; and recording the upper bits to one of the plurality of areas and the lower bits to another of the plurality of areas, respectively.
References Cited (Backward Citations)
JPS6061954A
Cited
JPS6278744A
Cited
EP0259666A1
Cited
EP0277019A2
Cited
EP0339932A2
Cited
JPH0298874A
Cited
JPH02116061A
Cited
JPH02193317A
Cited
US5206850A
Cited
JPH0546179A
Cited
US5684786A
Cited
EP0514214A2
Cited
JPH058714A
Cited
US5295126A
Cited
EP0558852A2
Cited
JPH05250811A
Cited
US5648948A
Cited
US5392264A
Cited
JPH0644692A
Cited
US5491561A
Cited
US5706262A
Cited
US5488593A
Cited
US5625611A
Cited
US5687397A
Cited
US5493548A
Cited
US5648954A
Cited
EP0642121A1
Cited
US5563855A
Cited
US5656348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-12-06 | 2003-06-07 | 2003-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-12-06 | 2007-06-07 | 2007-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-12-06 | 2011-06-07 | 2011-12-07 | $7700.00 | Window Closed / Lapsed |