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:
May. 30, 1995
Filed:
Nov. 03, 1993
William H Frye, Goleta, CA (US);
Eric J Woodbury, Santa Barbara, CA (US);
Santa Barbara Research Center, Goleta, CA (US);
Abstract
An integrated circuit, diode-based temperature sensor circuit (10) is amenable to fabrication upon a readout circuit (12) that is coupled during use to a FPA or radiation detectors. The sensor circuit is inherently self-calibrated, and provides for a cancellation of circuit offsets and other error sources. The circuit has an output that is time-multiplexed onto a data path that normally conveys a video data stream away from the readout circuit. The circuit operates to selectively forward bias a diode (D1) with two different currents. A difference between the currents is shown to indicate the temperature of the diode's p-n junction.