Circuit for decoding additional information in a composite signal
US5978037A · kind A · utility
12Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Feb 25, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H20/34
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A circuit for decoding additional information in a composite signal, the circuit having a filter device for separating a signal range in the composite signal, which includes the additional information in coded form. An adaptive decoding device is controlled by a signal quality parameter which is determined in an additional circuit from the respective reception state of the composite signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.