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:
Mar. 20, 1990
Filed:
Oct. 28, 1988
Toyohiro Kobayashi, Shizuoka, JP;
Shoji Mukohara, Shizuoka, JP;
Tatsunao Hayashida, Shizuoka, JP;
Yoshinori Numano, Amagasaki, JP;
Toshiyasu Higuma, Kamakura, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In an optical communications apparatus of one office having a light sending device which has a plurality of coupling ends adapted to be coupled with a light transmitting optical fiber for connecting individual offices and which sends a transmission signal in the form of light, and a light receiving device which receives a light signal; an optical communications apparatus comprising light sending means connecting the respective coupling ends and the light sending device through optical fibers, light receiving means connecting the respective coupling ends and the light receiving device through optical fibers, and pass-through means for passing the light signals between the coupling ends.