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. 29, 1992
Filed:
Oct. 10, 1990
Gerhard Krause, Rosenheim/Egarten, DE;
Steinheil Optronik GmbH, Ismaning, DE;
Abstract
A optoelectronic circuit arrangement, for instance for thermal viewing equipment, comprises a plurality of independent photodetector elements, whose signals are combined by multiplexers. The multiplexer output is connected with the common input of a switched integrator, which applies integrated signals to an output switch device, steps being taken to ensure that the multiplexer is at all times electrically separated from the output of the output switch device. For this purpose the integrator has at least one channel with three electronic switching members which in a cyclic sequence perform the operations of 'integration', 'output of integral value to output' and 'erase integral value'.