Television receiver incorporating a video cassette recorder and capable of displaying a sub-channel picture within a main-channel picture
US4845564A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1988 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Mar 31, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4858
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A television receiver incorporating a video cassette recorder and having a display, for example, a picture screen, for showing a main-channel picture within which a sub-channel picture may be superimposed, includes first and second tuners which are independently controllable for each selecting one of a number of broadcast channels, with the video signal broadcast on the channel selected by the first tuner being supplied to the display for forming the main-channel picture while the video signal broadcast on the channel selected by the second tuner is supplied to the display for forming the sub-channel picture in a sub-channel picture display mode of the receiver, and a system controller is programmed so that, when initiating a recording mode of the video cassette recorder, the second tuner is made to select the same broadcast channel as the first tuner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.