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:
Sep. 26, 1978
Filed:
Mar. 11, 1977
Helmut Fleischer, Schwieberdingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
To obtain input signals as a function of various types of input signals, R/C circuits are used to charge or discharge a capacitor, the charge state of which is sensed by a threshold stage. To render such circuits essentially independent of temperature changes, in spite of different response levels of the R/C circuit and the threshold stage, a second R/C circuit and threshold stage are connected in parallel with the first, one threshold stage being responsive to charging direction of the capacitor, the other threshold stage being responsive to discharging direction of the capacitor, and the overall output signal being a combination of the output signal from both threshold stages so that increase of the signal components of the combined output signal from one threshold stage, due to temperature increase, for example, will be balanced by a decrease of the signal component from the other threshold stage, thereby rendering the overall output essentially temperature independent.