Record carrier having an encoded wide-band digital audio signal recorded thereon
US7565298B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2004 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Oct 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/93
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Reproduction accuracy of a digital signal, representing, for example, stereo audio signals, is improved by transmitting sample data which have been encoded to form transmission signals. The stereo audio signals are coded into sub(band) signals. Corresponding sub(band) signals of the stereo audio signals may be processed to obtain composite sub(band) signals, which are recorded on a record carrier. To identify whether corresponding sub(band) signals have been processed or not, a mode indicator control signal, indicating whether a corresponding sub signal of the at least two signal components have or have not been processed into a composite sub-signal, is also being recorded on the record carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.