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. 15, 1980
Filed:
Mar. 29, 1978
Karl-Diether Nutz, Oedheim, DE;
Licentia Patent-Verwaltungs-G.m.b.H., Frankfurt, DE;
Abstract
A window discriminator or voltage range sensor has an input for receiving a d.c. voltage to be sensed and an output for providing a signal when the voltage at the sensor input falls within a predetermined range. The sensor employs a differential switch which has first and second inputs and an output which is coupled to the sensor output. A biasing arrangement is coupled with the first input and is adapted to provide a bias voltage which is substantially independent of the voltage at the sensor input. A circuit is coupled between the sensor input and the second input to the differential switch and is arranged to provide at the second input a voltage related to the sensor input voltage, which voltage effects switching of the differential switch to one state when the d.c. input voltage reaches a predetermined lower level and to the other state when the voltage reaches a level determined by the bias voltage.