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. 16, 2004
Filed:
Dec. 26, 2001
Chikao Nagasaka, Niwa-gun, JP;
Yoshimasa Kunimatsu, Niwa-gun, JP;
Masato Nishikawa, Niwa-gun, JP;
Toshiyuki Isogai, Niwa-gun, JP;
Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho, Aichi, JP;
Abstract
A speedometer for a vehicle capable of displaying a vehicle speed and a traveling distance highly accurately and of providing highly accurate speed information to a system utilizing the speed information is provided. A speedometer is connected to a navigation device that periodically corrects corrected data of a traveling distance per a pulse on the basis of a GPS signal and a vehicle speed pulse signal from a vehicle speed sensor, and outputs the corrected data to a navigation correction information data storage section of the speedometer. A data switching section outputs to a speed computation section the corrected traveling distance data per a pulse that is stored in the navigation correction information data storage section.