Stereophonic signal indicating apparatus
US4236041A · kind A · utility
8Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 13, 1979 |
| Grant date | Nov 25, 1980 |
| Priority date | — |
| Expiry date | Apr 13, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H40/45
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
This disclosure is concerned with resolving monophonic-stereophonic signal reception indication ambiguities through the development of channel difference signals, by appropriate filtering and compression, that distinguish the stereophonic mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.