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. 21, 1984
Filed:
Nov. 09, 1981
Bradford E Kruger, Woodland Hills, CA (US);
International Telephone & Telegraph Corporation, New York, NY (US);
Abstract
An electro-optical arrangement for transmitting signal data as modulated light energy across a rotating annular interface. The modulated light beams according to the system are projected axially within an annular cavity and thence outward through a redundant window arrangement. Another annular member rotatable with respect to the first one includes a plurality of closer-spaced but narrower second windows and a light-to-electric transducer associated with each second window. The spacing of the second windows is such that there is always light communication between the first and second window groups. The system is particularly adapted to digital modulation of the light energy.