Patent · US Expired

Method of and apparatus for transmitting video data

US5128942A · kind A · utility

28Cited by
10References
4Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 13, 1990
Grant dateJul 7, 1992
Priority date
Expiry dateApr 13, 2010

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04B7/18523
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

According to the present invention, when video data of, for example, a real moving picture is transmitted, the video data is data-compressed and transmitted while the combination of the compressing ratio of the video data and the encoding ratio of the video data is varied in response to a condition of the transmission path. Therefore, regardless of the condition of the transmission path, video data of the best quality can be transmitted at a constant transmitting speed.

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