Video compression/decompression processing and processors
US6441842B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1998 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Jun 16, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/40
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a cost-effective videophone communicates over a POTS line, and generates video data in a format for a selected display type. The device includes a video source to capture images and to generate video data representing the images; a telephone line interface circuit, including a signal transmission circuit and a signal receiver circuit; to transmit and receive video data over the telephone line; a memory circuit for storing a main program including video data processing consistent with at least one video-coding recommendation and for processing pixels for a certain display type; a programmable processor circuit for executing the code for processing pixels for a certain display type and, in response, causing image data to be output for display. The programmable processor circuit has a DSP section for compressing and decompressing video, and a RISC-type processor section for general control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.