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. 05, 1990
Filed:
Jun. 24, 1988
Applicant:
Inventor:
Kouichi Ishizaka, Saitama, JP;
Assignee:
Jidosha Kiki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P / ; G01P / ;
U.S. Cl.
CPC ...
364565 ; 324168 ;
Abstract
In a method for measuring vehicle speed, initial vehicle speed measurement after a vehicle speed measurement power supply is turned on, is based on the predicted number of pulses to occur during a time interim which is in turn based on a period of a single pulse generated by a vehicle speed signal. After a predetermined time interval has passed, vehicle speed measurement is based on the actual number of pulses generated by vehicle speed signals during that time interval.