Sound mode switching method for multichannel selection and device thereof
US5442452A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1992 |
| Grant date | Aug 15, 1995 |
| Priority date | — |
| Expiry date | Aug 24, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8106
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A sound mode switching method for multichannel selection a video tape recorder uses a first step of making judgements on the selections of a multi-voice mode setting key and a main picture switching key, a second step for deciding the sound mode and for storing the sound mode data into a memory, a third step for making a judgement on the selection of a channel for the main picture and for outputting the selected multi-voice mode signals, and a fourth step for replacing the sub-picture. A device for multichannel selection comprises a microcomputer, a multi-voice mode selecting circuit, and a multi-voice module. According to the present invention, during a multichannel selection, independent sound signals can be outputted for the respective channels under a multi-voice mode and therefore, different sound signals can be displayed and enjoyed in a unique manner depending on the contents of the pictures for the respective channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.