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:
Apr. 08, 2008
Filed:
Feb. 11, 2005
Hiroshi Sakai, Kariya, JP;
Hiroshi Sakai, Kariya, JP;
DENSO Corporation, Kariya, JP;
Abstract
An onboard wireless communication system includes a power supply circuit, a wireless communication circuit, a control circuit, and a current integration circuit. The current integration circuit calculates an integration value of current fed from a battery after the battery starts discharging. The current integration circuit temporarily stops the calculation until transmission of a burglar alarm signal is completed when a burglar detection signal is outputted from a burglar detection ECU while the integration value is still smaller than a reference value. As a result, power supply from the power supply circuit to the wireless communication circuit is maintained. The power supply is stopped when the integration value is equal to or larger than the reference value while the burglar detection signal is still not outputted from the burglar detection ECU.