Patent · US Expired

Variable shift register

US5033067A · kind A · utility

10Cited by
6References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 15, 1989
Grant dateJul 16, 1991
Priority date
Expiry dateDec 15, 2009

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03K2005/00241
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

A variable length shift register is formed of a plurality of flip-flops arranged to form separate shift registers of different lengths. The shift registers are interconnected by multiplexers which connect either the input or the output of each shift register to the input of an adjacent shift register. Control signals are provided to the multiplexers to controllably select the length of the variable shift register by selectively inserting shift registers into the variable shift register and bypassing others.

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