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:
Feb. 25, 1986
Filed:
Jul. 15, 1983
Robert E Brooks, Manhattan Beach, CA (US);
TRW Inc., Cleveland, OH (US);
Abstract
An apparatus for indicating the position of a movable member, such as a manual control lever, which uses light signals. The apparatus includes at least three light guides and means for introducing distinctively different, cyclically varying light signals into at least two of the light guides. The degree of optical coupling between the third light guide and each of the other two light guides is controlled in accordance with the position of the movable member. An indication of the position of the member is then provided by detecting the third light signal and indicating the extent to which it exhibits the distinctive characteristics of the first and second light signals.