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:
Sep. 02, 2008
Filed:
Feb. 09, 2004
Shinya Nakai, Tokyo, JP;
Hideaki Fujioka, Tokyo, JP;
Shinya Nakai, Tokyo, JP;
Hideaki Fujioka, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A front end module () comprises: a triplexer () for separating the AMPS band, the PCS band and the GPS band from one another; a duplexer () for separating transmission signals and reception signals in the AMPS band from each other; and a duplexer () for separating transmission signals and reception signals in the PCS band from each other. The duplexers () each include an acoustic wave element that functions as a filter. A single multilayer substrate is used to integrate the triplexer () and the duplexers (). The triplexer () is made up of conductor layers located inside or on the surface of the multilayer substrate.