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. 06, 2012
Filed:
Dec. 06, 2005
Shigeru Kemmochi, Kumagaya, JP;
Kazuhiro Hagiwara, Kumagaya, JP;
Keisuke Fukamachi, Kumagaya, JP;
Takahiro Yamashita, Kumagaya, JP;
Masayuki Uchida, Tottori, JP;
Mitsuhiro Watanabe, Tottori, JP;
Shigeru Kemmochi, Kumagaya, JP;
Kazuhiro Hagiwara, Kumagaya, JP;
Keisuke Fukamachi, Kumagaya, JP;
Takahiro Yamashita, Kumagaya, JP;
Masayuki Uchida, Tottori, JP;
Mitsuhiro Watanabe, Tottori, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A high-frequency circuit comprising a high-frequency switch circuit for switching the three-way connection of an antenna to a transmitting circuit for the first communications system, a receiving circuit for a first communications system, and a transmitting/receiving circuit for a second communications system; a first bandpass filter disposed between the antenna and the high-frequency switch circuit; and a balanced-unbalanced conversion circuit disposed between the receiving circuit of the first communications system and the high-frequency switch circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile