Patent · US Expired

Facsimile communication system and method

US4153916A · kind A · utility

54Cited by
2References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 8, 1977
Grant dateMay 8, 1979
Priority date
Expiry dateNov 8, 1997

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N2201/3335
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A facsimile communication system and method in which facsimile information from original documents is sequentially transmitted from a transmitter to a remote receiver. The transmitter is utilized for changing the data transfer speed of the facsimile information in accordance with an instruction signal provided by the remote receiver. The remote receiver supervises the error rate level of each unit of facsimile information of the original documents and provides the instruction signal when the error rate level is detected to exceed a reference error rate level.

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