Patent · US Expired

Microprocessor based packet isochronous clocking transmission system and method

US5255291A · kind A · utility

134Cited by
14References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 14, 1988
Grant dateOct 19, 1993
Priority date
Expiry dateNov 14, 2008

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04J3/0632
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A packet voice/data communication system provides a frequency measurement isochronous clocking transmission capability. This is a method of transferring clock information by directly measuring the frequency of the clock relative to a reference and then reproducing that exact clock frequency at the far end relative to the reference which has been carried through the system.

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