Recording medium and audio-signal processing apparatus
US7006422B2 · kind B2 · utility
6Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2003 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Feb 16, 2024 |
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.