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:
Jul. 25, 1995
Filed:
Aug. 26, 1993
Masaharu Ikeda, Yokohama, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A comparator device is designed for comparing the signal levels of first and second input signals to provide respective resultant comparator outputs independently, which comparator device is featured in avoidance of occurrence of simultaneous low levels of the comparator signals at all possible conditions of the comparator outputs. The comparator device includes first and second comparator which independently output resultant comparator outputs having either a high (H) level or a low (L) level as results of comparison of the signal levels of the first and second input signals while taking one of the input signals as a reference, and have offset characteristics and hysteresis characteristics so that the comparator outputs, either H level or L level, can be fixedly determined when the first and second input signal levels are equal to each other. The first input signal is applied to one of the input terminal of the first comparator and the other input terminal of the second comparator with a different polarity, and the second input signal is applied to the other input terminal of the first comparator and one of the input terminal of the second comparator with a different polarity.