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. 21, 2002
Filed:
May. 01, 2000
Masayoshi Sakai, Urawa, JP;
Toshihito Shirai, Urawa, JP;
The Nippon Signal Co., Ltd., Tokyo, JP;
Abstract
The invention relates to a threshold value operation circuit which can perform an analogue type threshold value operation, and which can generate an AC signal with a stabilized frequency and duty ratio which is not influenced by input signal level or characteristic changes of the circuit elements and the like. A switching device (SWa) is switched by a switching signal (Sg) from an external AC source, to modulate an input signal (Vi) which is the subject of a threshold value operation. A modulation signal (V ) thereof is level detected by a level detection circuit ( ) having a previously set threshold value, and if within a range of a predetermined level, an AC output (Vo) is generated from the level detection circuit ( ).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile