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:
Sep. 26, 1978
Filed:
Sep. 15, 1977
Applicant:
Inventors:
William E Zitelli, Media, PA (US);
Andras I Szabo, Export, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
3403 / ;
Abstract
A low-cost, single-point analog subsystem comprising a pre-amplifier signal conditioner, a dual-slope integration analog-to-digital converter, and a computer interface circuit. The unit is capable of rejecting high common mode voltages while maintaining extremely high system accuracies. The main application for the invention is in interfacing transducer or instrumentation analog data with a digital computer. The interface circuitry allows the computer to select its channel in an asynchronous manner through special controllogic and without the necessity for employing conventional multiplexing equipment.