Patent · US Expired

Timer apparatus for incrementing timing code at variable clock rates

US4011517A · kind A · utility

12Cited by
4References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 22, 1975
Grant dateMar 8, 1977
Priority date—
Expiry dateJan 22, 1995

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04F1/005
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A timer circuit receives a multi-bit digital signal representative of a timing code to be incremented. In dependence upon the coded value of the received signal, the code represented by the signal will be incremented at a selected clock rate. The clock rate selected may be chosen to decrease in frequency in a stepwise manner as the code is incremented. As the timing interval increases, the percent resolution of the timing code is maintained substantially constant.

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