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:
May. 03, 2005
Filed:
Jun. 20, 2000
Junichi Nagano, Tokyo, JP;
Junichi Nagano, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A relay station is composed of a main reception antennafor receiving both a radio wave of a parent station and a go-around radio wave of a relay station, a subsidiary reception antennafor receiving the go-around radio wave of the relay station, a changeable attenuatorand a phase shifting unitfor changing an amplitude and phase of a signal received in the subsidiary reception antenna, a composite signal producing unitfor producing a composite signal from a signal received in the main reception antennaand the signal sent from the phase shifting unit, an electric power detecting unitfor obtaining a composite electric power from a composite voltage extracted in a directivity coupling unit, and a microcomputerfor controlling a change of amplitude in the changeable attenuatorand a change of phase in the phase shifting unitso as to minimize an average value of the composite electric power obtained in the electric power detecting unit
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile