Patent · US Expired

Video transmission rate matching for multimedia communication systems

US5687095A · kind A · utility

147Cited by
5References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 1, 1994
Grant dateNov 11, 1997
Priority date
Expiry dateNov 1, 2014

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N19/146
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

Digital video transmission rate matching techniques are disclosed. A bit stream rate matching apparatus includes a bit rate increasing device and a bit rate reducing device. The bit rate increasing device converts a video bit stream having a first transmission rate to a video bit stream having a second transmission rate wherein the first transmission rate is less than the second transmission rate. The bit rate reducing device converts a video bit stream having the second transmission rate to a video bit stream having the first transmission rate. The bit stream rate matching apparatus is useful in the context of a multimedia conference where a first endpoint device employs the first transmission rate and a second endpoint device employs the second transmission rate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.