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. 24, 2007
Filed:
Aug. 12, 2004
Hiroshi Takenaga, Toukai, JP;
Yuji Otsuka, Hitachi, JP;
Shoji Muramatsu, Hitachi, JP;
Tatsuhiko Monji, Hitachinaka, JP;
Ken Ohsumi, Hitachinaka, JP;
Isao Furusawa, Hitachinaka, JP;
Masaaki Fukuhara, Mito, JP;
Hiroyuki Kasuya, Hitachinaka, JP;
Hiroshi Takenaga, Toukai, JP;
Yuji Otsuka, Hitachi, JP;
Shoji Muramatsu, Hitachi, JP;
Tatsuhiko Monji, Hitachinaka, JP;
Ken Ohsumi, Hitachinaka, JP;
Isao Furusawa, Hitachinaka, JP;
Masaaki Fukuhara, Mito, JP;
Hiroyuki Kasuya, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An image processing system that detects foreign matter on a glass window of a vehicle and objects in front of the vehicle. The system includes an image processor, a first lamp, and a second lamp. On/off control of the first and second lamps is controlled by the image processor. Light from the first lamp is reflected from the outer sauce of the glass when raindrops are present on the outside of the glass. Light from the second lamp is reflected from the inner surface of the glass when moisture is present on the inside of the glass. Any reflected light goes through a lens and an optical filter with prescribed optical characteristics to an image device. The lens is focused to a point beyond the window so that the image processor an also detect objects in front of the vehicle.