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:
Jul. 19, 2011
Filed:
Feb. 26, 2009
Shigeru Kemmochi, Saitama-ken, JP;
Keisuke Fukamachi, Saitama-ken, JP;
Kazuhiro Hagiwara, Saitama-ken, JP;
Masayuki Uchida, Tottori-ken, JP;
Shigeru Kemmochi, Saitama-ken, JP;
Keisuke Fukamachi, Saitama-ken, JP;
Kazuhiro Hagiwara, Saitama-ken, JP;
Masayuki Uchida, Tottori-ken, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
A multi-band high-frequency circuit for performing wireless communications among pluralities of communication systems having different communication frequencies. A high-frequency switch circuit contains: switching elements for switching the connection of pluralities of multi-band antennas to transmitting circuits and receiving circuits; a first diplexer circuit disposed between the high-frequency switch circuit and transmitting circuits for branching a high-frequency signal into frequency bands of the communication systems; and a second diplexer circuit disposed between the high-frequency switch circuit and receiving circuits for branching a high-frequency signal into frequency bands of the communication systems.