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:
Aug. 23, 2005
Filed:
Sep. 27, 2002
Shu-ichi Sekine, Yokohama, JP;
Takayoshi Itoh, Yokohama, JP;
Yuji Iseki, Kawasaki, JP;
Naoko Ono, Tokyo, JP;
Keiichi Yamaguchi, Kawasaki, JP;
Hiroyuki Kayano, Fujisawa, JP;
Akihiro Tsujimura, Yokohama, JP;
Kazuhiro Inoue, Inagi, JP;
Noriaki Odachi, Yokohama, JP;
Yasushi Murakami, Yokohama, JP;
Shu-ichi Sekine, Yokohama, JP;
Takayoshi Itoh, Yokohama, JP;
Yuji Iseki, Kawasaki, JP;
Naoko Ono, Tokyo, JP;
Keiichi Yamaguchi, Kawasaki, JP;
Hiroyuki Kayano, Fujisawa, JP;
Akihiro Tsujimura, Yokohama, JP;
Kazuhiro Inoue, Inagi, JP;
Noriaki Odachi, Yokohama, JP;
Yasushi Murakami, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
In a radio equipment of portable type, the impedance of an antenna is optimized by adjusting a matching circuit which has the adjustment function and is connected to an antenna, based on a reflection phase sent back from the antenna, outputted from a reflection phase detector, and a current supplied to a transmitter-receiver which generates a transmitting signal.