Patent · US Expired

Clock distribution system

US7290162B2 · kind B2 · utility

14Cited by
8References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 14, 2002
Grant dateOct 30, 2007
Priority date
Expiry dateJul 9, 2022

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L45/742
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A clock distribution system for an integrated circuit comprising a plurality of regions (1, 2, 3) connected by a communications bus (12). Each region comprises a functional block (10a, 10b, 10c) and at least one bus node (14a, 14b, 14c) for connecting a respective functional block to the communications bus (12). A distributed clock signal (16) is allowed to skew between regions, but synchronised within respective regions. A predetermined clock insertion delay (20a, 20b, 20c, 22a, 22b, 22c) is inserted in each functional block and bus node.

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