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.

Date of Patent:
Aug. 25, 1981

Filed:

Sep. 08, 1978
Applicant:
Inventors:

David L Staebler, Lawrenceville, NJ (US);

George R Latham, Jr, Trenton, NJ (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ; H02K / ; G02B / ;
U.S. Cl.
CPC ...
324125 ; 318134 ; 324 97 ; 350-66 ; 350486 ;
Abstract

Switch means having a predetermined number of switch positions normally applies any selected one of the same predetermined number of separate control signals to a galvanometer in accordance with the switch position to which the switch means is operated. However, in response to each operation of the switch means between switch positions, a reference signal is applied to the galvanometer for a given time. This overcomes the degrading effect of hysteresis on galvanometer accuracy.


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