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:
Jul. 28, 2015
Filed:
Nov. 07, 2011
Yasushi Nagai, Yokohama, JP;
Atsushi Shimizu, Yokohama, JP;
Hiroyuki Kasuya, Hitachinaka, JP;
Shoichi Akutsu, Saitama, JP;
Shinji Kawamura, Saitama, JP;
Yoshitaka Sumitomo, Saitama, JP;
Yasushi Nagai, Yokohama, JP;
Atsushi Shimizu, Yokohama, JP;
Hiroyuki Kasuya, Hitachinaka, JP;
Shoichi Akutsu, Saitama, JP;
Shinji Kawamura, Saitama, JP;
Yoshitaka Sumitomo, Saitama, JP;
CLARION CO., LTD., Tokyo, JP;
Abstract
When a power supply is cut off on updating programs, improper data remains since the power source to be supplied to the vehicle-mounted device is unstable. The check for the improper data and restoration processing are required for a reactivation processing implemented by an update processing unit so that the update is completed correctly, therefore, the user is waited. In contrast, the update processing also implemented by the update processing unit for a time period during which the power source becomes unstable is interrupted, and implemented for the time period during which the power source voltage is stable. The power source voltage is considered to be unstable based on a function of the vehicle speed, brake pedal actuation, parking brake actuation, and/or power source activation. In consequence, the update processing is carried on steadily without making the user wait.