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. 26, 2005
Filed:
Feb. 10, 2003
Tetsuya Nakashima, Ichinomiya, JP;
Yasuji Inobe, Nagoya, JP;
Seiji Nagakusa, Kasugai, JP;
Teiyuu Kimura, Nagoya, JP;
Tetsuya Nakashima, Ichinomiya, JP;
Yasuji Inobe, Nagoya, JP;
Seiji Nagakusa, Kasugai, JP;
Teiyuu Kimura, Nagoya, JP;
Denso Corporation, Kariya, JP;
Abstract
An optical measuring device includes a sensor which emits light flashes toward a subject of detection with a light emitting element which is supplied with electric power from a rechargeable battery for a certain duration at certain intervals and receives reflected light from the subject with a light sensitive element. A subtractor subtracts a d.c. component from a sensed signal provided by the light sensitive element, thereby extracting a variation component. The subtractor has its output signal amplified with an amplifier, with the output thereof being A/D-converted with an A/D converter.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile