The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 26, 1977
Filed:
Nov. 14, 1975
Robert Graham Burrage, Solihull, EN;
Lucas Industries Limited, Birmingham, EN;
Abstract
An apparatus for generating a digital count proportional to the frequency of a pulsed input signal has two binary rate multipliers both of which provide output frequency signals dependent on the instantaneous count in a counter. A first one of the multipliers is responsive to a fixed input frequency and the second multiplier is dependent on the output frequency of the first multiplier. The value in the counter is decremented from an initially-set maximum by the output of the second multiplier. The apparatus is operated for a time dependent on the cycle time of the unknown pulsed input frequency. Decrementation of the count is inversely proportional to time. The count is thereby directly proportional to the unknown frequency.