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:
Aug. 05, 1986
Filed:
Jun. 10, 1985
Applicant:
Inventor:
Stephen H Kelley, Austin, TX (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330-9 ; 307353 ; 307356 ; 330 69 ; 330107 ; 330252 ;
Abstract
A circuit which can selectively sample and hold two real time input voltages and provide an output voltage indicating the difference value of the input voltages is provided. A switched capacitor structure which provides no parasitic capacitance output error component when the two input voltages are substantially equal is used.