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:
Oct. 29, 1996

Filed:

Sep. 20, 1994
Applicant:
Inventors:

Kenji Matsumoto, Yokohama, JP;

Shigeyuki Itoh, Kawasaki, JP;

Kenji Sano, Yokohama, JP;

Jun Kobayashi, Katsuta, JP;

Koji Mori, Katsuta, JP;

Kenji Okada, Katsuta, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H04N / ;
U.S. Cl.
CPC ...
359146 ; 359172 ; 358906 ; 348373 ; 348343 ; 348344 ; 348-6 ;
Abstract

Apparatus for achieving contact-less linking between a transmitting unit and a receiving unit when transmitting video signal, audio signal, control signal, or digital data therebetween. The apparatus includes a switch circuit which switches the output signal of a light emitting integrated circuit to a first set of light guides for spatial transmission of an optical signal representing the video, audio and control signals and digital data and to a second set of light guides for near-by transmission of the optical signal.


Find Patent Forward Citations

Matsumoto, Kenji. (1996). Apparatus for transmitting lightwave (U.S. Patent No. 5570220). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5570220

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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