Television on/off detector for use in a video cassette recorder
US5659367A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 1994 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Dec 30, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/63
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for providing a television guide includes a device for detecting whether a television is off, a device for switching a signal output from a first television signal source to a second television signal source, if television guide data is not contained in the signal output from the first television signal source when the device for detecting detects that the television is off, a device for extracting the television guide data from the signal output when the device for detecting detects that the television is off, and memory for storing the extracted television guide data. In another embodiment an apparatus for providing a directory for transmitted and recorded programs, includes a device for detecting whether a television is off, a device for switching a signal output from a first television signal source to a second television signal source, if a directory is not contained in the signal output from the first television signal source when the device for detecting detects that the television is off, a device for extracting the directory from the signal output when the device for detecting detects that the television is off, a recorder for recording the transmitted program…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.