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:
Nov. 21, 2006
Filed:
Aug. 15, 2003
Makoto Katagishi, Chigasaki, JP;
Taku Takaki, Fujisawa, JP;
Yutaka Chiba, Hitachinaka, JP;
Masanobu Kumekawa, Hitachinaka, JP;
Kazunori Hoshino, Hitachinaka, JP;
Makoto Katagishi, Chigasaki, JP;
Taku Takaki, Fujisawa, JP;
Yutaka Chiba, Hitachinaka, JP;
Masanobu Kumekawa, Hitachinaka, JP;
Kazunori Hoshino, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Embodiments of the present invention are directed to a mobile communication device that includes a plurality of antennas for receiving signals and is configured to reduce the deterioration of the antennas characteristics. In specific embodiments the mobile device is a folding type mobile communication terminal having the structure that permits easy opening or closing and enabling stabilization of the antenna characteristic. In one embodiment, a mobile communication device comprises a plurality of antennas configured to receive signals; a signal processing circuit configured to combine and process the signals received from the plurality of antennas; and a phase alignment circuit provided for each of the plurality of antennas and configured to subject a phase of a signal received by each of the plurality of antennas to an in-phase adjustment.