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:
Mar. 21, 1995
Filed:
Oct. 20, 1992
Toshihiro Katsuda, Toyota, JP;
Shinji Sekido, Okazaki, JP;
Setsuo Tokoro, Toyota, JP;
Tatsuo Kyushima, Okazaki, JP;
Masaharu Tanaka, Toyota, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A vehicle speed determining device determines a running speed of a vehicle, on the basis of pulses received from a vehicle speed sensor. A first determination that the running speed of the vehicle has been zeroed is made, if a next pulse has not been received from the sensor, within a predetermined first length of time after the reception of a last pulse from the sensor. A second determination that a period of the next pulse to be received next is abnormally long is made, if said next pulse has not been received within a predetermined second length of time after the reception of the last pulse. If the second determination is made, the first determination is inhibited until the next pulse has been received.