Coding digital data
US4757518A · kind A · utility
9Cited by
5References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 19, 1987 |
| Grant date | Jul 12, 1988 |
| Priority date | — |
| Expiry date | Feb 19, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B20/1262
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Digital data, such as audio data is coded by encoding apparatus, into a format of fixed-length multi-bit data words. At least one bit in the same predetermined bit position in each data word is a specific information data bit, such as channel status information or user information. A plurality of the specific information data bits from a corresponding plurality of successive data words respectively form a specific information word. Each specific information word contains a synchronizing signal, and the length of the specific information words is variable. A decoder decodes the encoded digital data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.