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. 16, 1980
Filed:
Jan. 22, 1979
William H Quick, La Habra Heights, CA (US);
Kenneth A James, Corona Del Mar, CA (US);
Virgil H Strahan, Orange, CA (US);
Rockwell International Corporation, El Segundo, CA (US);
Abstract
Optical sensor apparatus and associated means by which to color multiplex optically encoded information signals over a compact fiber optic transmission system. The sensor apparatus includes a movable coded masking means. The masking means is fabricated with a plurality of parallel rows, each of which rows comprising a binary weighted pattern of alternately spaced transparent and opaque areas. Incident white light is spectrally dispersed, so that each of the rows of the masking means receives a respective color. As the masking means is moved in response to an input physical parameter that is to be sensed, the corresponding binary coded output color signals that are transmitted through the transparent areas of the masking means are recombined and multiplexed over either a singel optical fiber or a bundle of incoherent optical fibers. After demultiplexing or spectral dispersion of the multiplexed output signal, a photo-detector means is utilized to receive the individual demultiplexed binary coded output color signals and to provide a numerical equivalent of the position of the masking means and, accordingly, the physical parameter represented thereby.