Patent · US Expired

Reducing waiting time jitter

US6229863A · kind A · utility

10Cited by
32References
24Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 2, 1998
Grant dateMay 8, 2001
Priority date
Expiry dateNov 2, 2018

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04J3/073
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

Circuits and methods are described which reduce waiting time jitter at a synchronizer/multiplexer by using a "sub-bit" comparison of a clock associated with an unsynchronized data stream and a clock associated with a synchronized data stream to generate a threshold level for use in determining when to stuff bits into the synchronized data stream. The term "sub-bit" means that the phase difference, as measured by, for example, the location of pointers associated with the two clocks, is precise to a fraction of a bit.

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