Vehicle on board television system
US5541572A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1993 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Nov 23, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/41422
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An automobile onboard television system by which a normal television picture is displayed only when the automobile is stopped, as a safety feature. An image display condition of the television is switched over in response to an image display switching signal from a microcomputer. Information as to setting of the automobile parking brake, information about the accessory input in the automobile, and information indicating a time-out of a timer circuit are supplied to the microcomputer. The microcomputer determines the logical product of this information, to supply an image display switching signal for displaying a normal picture on the television only when particular logical products are output. The driver is therefore kept from watching the television while driving, and hence from driving carelessly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.