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:
Nov. 16, 1993
Filed:
Mar. 05, 1993
Takuya Takeda, Kawasaki, JP;
Kikusui Electronics Corporation, Kanagawa, JP;
Abstract
A trigger source switching circuit including a first switch system for a high frequency region, and a second switch system for a low frequency region. The first switch system is composed of a plurality of semiconductor switches having good frequency and isolation characteristics, and the adverse effect of the DC shift is eliminated by using a capacitor connected between the outputs of the semiconductor switches and the output terminal of the trigger source switching circuit. The second switch system for the low frequency region is composed of analog switches, and the output terminal of each analog switch is connected to an input terminal of an operational amplifier of a small output offset, thereby reducing the effect of the on-resistance of the analog switches and the adverse effect of the DC shift. The analog switches can be used because the frequency and isolation characteristics required in the high frequency region are unnecessary in the low frequency region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile