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:
Jan. 10, 2006
Filed:
Feb. 27, 2003
Takayuki Ban, Kanagawa-Ken, JP;
Masaru Hashimoto, Kanagawa-ken, JP;
Takayuki Ban, Kanagawa-Ken, JP;
Masaru Hashimoto, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An optical sensing circuit is provided with a light detector, a voltage to current conversion circuit connected to the light detector, and a comparator. The voltage to current conversion circuit includes an electric resistor and a current mirror circuit connected in parallel to the resistor. The voltage to current conversion circuit increases an electric current flowing through the circuit as a voltage of the output of the light detector decreases. The comparator compares the voltage of the output of the light detector with a reference voltage.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile