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:
Jun. 22, 1982
Filed:
Feb. 27, 1980
Applicant:
Inventors:
Richard G Woodhouse, Birmingham, GB;
Peter H Salway, Birmingham, GB;
Assignee:
Lucas Industries Limited, Birmingham, GB;
Primary Examiner:
Int. Cl.
CPC ...
G01P / ; G01P / ;
U.S. Cl.
CPC ...
324162 ; 73518 ; 340669 ;
Abstract
A device and method for measuring the rate of change of a pulse train from a transducer includes first counter which counts the number of pulses in a first fixed frequency of pulse train during each interval between the signal pulses. A divider receives the count generated in the preceding interval and divides the frequency f.sub.1 of a second fixed frequency pulse train by this count. This divided pulse train is counted by a second counter for the duration of each interval to provide a ratio of the change in duration to the preceding interval's duration.