Patent · US Expired

Flag detection circuit

US4554541A · kind A · utility

4Cited by
3References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 12, 1983
Grant dateNov 19, 1985
Priority date
Expiry dateSep 12, 2003

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L7/042
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A logic circuit detects an eight bit flag, "01111110," which according to an accepted telecommunication protocol begins and ends each packet of serially sent digitized voice or data. The circuit may easily be added to existing hardware.

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