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:
Dec. 05, 2006
Filed:
Nov. 29, 2002
Hideyuki Funaki, Tokyo, JP;
Keitaro Shigenaka, Hachioji, JP;
Yujiro Naruse, Yokohama, JP;
Ikuo Fujiwara, Yokohama, JP;
Naoya Mashio, Yokohama, JP;
Hideyuki Funaki, Tokyo, JP;
Keitaro Shigenaka, Hachioji, JP;
Yujiro Naruse, Yokohama, JP;
Ikuo Fujiwara, Yokohama, JP;
Naoya Mashio, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A sensor device includes a sensor array in which infrared sensors are arrayed and a detection circuit connected to the output signal line of the sensor array. The detection circuit includes a capacitor having a charging circuit which is selectively driven, a sense amplifier circuit which detects and amplifies a change in sensor current flowing to the output signal line, a current-to-voltage conversion circuit which converts the output current from the sense amplifier circuit into a voltage, a discharging circuit which is controlled by the output voltage of the current-to-voltage conversion circuit to discharge the capacitor, and an output circuit which outputs the terminal voltage of the capacitor.