System for automatically activating picture-in-picture when an auxiliary signal is detected
US5432561A · kind A · utility
205Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1994 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Oct 31, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/44227
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A television receiver comprising an improved interface circuit which automatically activates a PIP display of an auxiliary input (for example a videocassette or videodisc) when such an input is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.