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:
Dec. 18, 1990
Filed:
Apr. 25, 1989
Applicant:
Inventor:
Daniel L Schuster, Portland, OR (US);
Assignee:
Magni Systems, Inc., Beaverton, OR (US);
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; H03K / ;
U.S. Cl.
CPC ...
330254 ; 328154 ; 307243 ;
Abstract
A linear switch with high off-state isolation in provided for use in video waveform monitors and/or graphic encoders and mixers. The linear switch provides a proportional mix of two signal sources in response to a control voltage for fading and keying from one source to another in order to allow complete elimination of either source from the output (high isolation when a source is fully off) which can be achieved with minimal circuitry.