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.

Date of Patent:
May. 04, 2010

Filed:

Aug. 06, 2007
Applicants:

Taketoshi Yoshigoe, Kariya, JP;

Taiji Morishita, Kariya, JP;

Inventors:

Taketoshi Yoshigoe, Kariya, JP;

Taiji Morishita, Kariya, JP;

Assignee:

Denso Corporation, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A raindrop sensor outputs a measurement signal, which corresponds to a quantity of raindrops in a predetermined sensing range in a wiping range on a windshield. A prohibited time period setting arrangement sets a time period, during which a wiper blade is predicted to pass through the predetermined sensing range, as a raindrop quantity sensing prohibited time period based on an elapsed time from a time point of supplying a drive command signal to a wiper motor, which drives the wiper blade. The determining arrangement determines the quantity of raindrops on the windshield based on the measurement signal outputted from the raindrop sensor in a raindrop quantity sensing execution time period, which is outside of the raindrop quantity sensing prohibited time period.


Find Patent Forward Citations

Loading…