Picture codec and teleconference terminal equipment
US5689300A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1995 |
| Grant date | Nov 18, 1997 |
| Priority date | — |
| Expiry date | Jul 31, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/337
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a teleconference terminal equipment; a picture codec for simultaneously displaying a still picture and video on a single screen, comprising an analog-to-digital converter which converts a picture signal into digital picture data, a picture-in-picture processor which is supplied with the digital picture data as self-picture data of the terminal equipment, a video decoder or a still picture decoder which decodes input picture data and delivers the decoded data to the P-in-P processor, and a digital-to-analog converter which is supplied with picture data for forming a P-in-P frame, having been produced from the self-picture data and the decoded data by the P-in-P processor, and which converts the supplied picture data into an analog signal and delivers the analog signal as an output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.