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:
Dec. 08, 2009
Filed:
Jan. 10, 2008
Satoru Ono, Yokohama, JP;
Osamu Kawachi, Yokohama, JP;
Hidemitsu Kuboi, Yokohama, JP;
Kouta Ohkubo, Yokohama, JP;
Satoru Ono, Yokohama, JP;
Osamu Kawachi, Yokohama, JP;
Hidemitsu Kuboi, Yokohama, JP;
Kouta Ohkubo, Yokohama, JP;
Fujitsu Media Devices Limited, Yokohama, JP;
Abstract
A filter includes: a first acoustic wave filter having acoustic wave filters cascaded, an input stage of the acoustic wave filters including a first multimode filter; a second acoustic wave filter having acoustic wave filters cascaded, an input stage of these acoustic wave filters including a second multimode filter having an aperture length different from that of the first multimode filter, the second acoustic wave filter receiving an unbalanced in signal applied to the first acoustic wave filter, and having a pass band that does not overlap with that of the first acoustic wave filter.