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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.:

US 5257030 B1

PDFFull Text
Date of Patent:
Oct. 26, 1993

Filed:

Mar. 05, 1993

Antenna system

Applicant:
Inventors:

Toshihiko Aoki, Kanagawa, JP;

Takashi Katagi, Kanagawa, JP;

Nobutake Orime, Kanagawa, JP;

Susumu Hishinuma, Kanagawa, JP;

Koushi Ogiso, Kanagawa, JP;

Yasuhiko Nishioka, Kanagawa, JP;

Assignee:

Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;

Attorney:

Wolf, Greenfield & Sacks

Primary Examiner:

Gregory C Issing

Int. Cl.
CPC ...
H01Q / ; H01Q / ;
U.S. Cl.
CPC ...
342368 ; 342372 ; 342377 ;
Abstract

An antenna system for transmitting radio waves in the same direction as the direction of arrival of incoming radio waves. The arrival direction is detected by a fast Fourier transform processor. The transmitting direction is adjusted by phase-shifting radio waves from a feeder on the basis of the detected arrival direction. Further, signals in the system are transmitted through optical fibers in order to decrease the processing time.

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Aoki, Toshihiko. (1993). Antenna system (U.S. Patent No. 5257030). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5257030

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