Recording medium and audio-signal processing apparatus
US6636474B1 · kind B1 · utility
23Cited by
8References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 13, 1998 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Jul 13, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2562
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital signal recording disc has a first area and a second area. The second area differs from the first area. The first area stores a first-channel digital audio signal and a second-channel digital audio signal. The first-channel digital audio signal results from quantizing a first-channel analog audio signal with a first quantization bit number. The second-channel digital audio signal results from quantizing a second-channel analog audio signal with a second quantization bit number. The second area stores information of the first and second quantization bit numbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.