Patent · US Expired

Code detection circuit

US4168487A · kind A · utility

1Cited by
6References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 1, 1977
Grant dateSep 18, 1979
Priority date
Expiry dateNov 1, 1997

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N1/33315
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A code detection circuit for removing an influence due to an error code transmitted in a band compression facsimile, etc. The circuit comprises an input register for temporarily memorizing input data, an output register coupled to the output of the input register, a comparison circuit coupled to the input and output of the input register and comparing the input data of the input register with the output thereof, and a reader for reading the output of the input register in the output register by means of the output of the comparison circuit when the input data becomes coincident with the output of the input register.

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