Filter and duplexer

US9148115B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9148115-B2
Application numberUS-201313909868-A
CountryUS
Kind codeB2
Filing dateJun 4, 2013
Priority dateJun 12, 2012
Publication dateSep 29, 2015
Grant dateSep 29, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A filter includes: a filter circuit connected between a first terminal and a second terminal; and a matching circuit connected between the filter circuit and the second terminal, wherein an impedance viewed from the second terminal toward the matching circuit is less than an impedance viewed from a node between the filter circuit and the matching circuit toward the filter circuit.

First claim

Opening claim text (preview).

What is claimed is: 1. A filter comprising: a filter circuit connected between a first terminal and two second balanced terminals and including a first DMS filter and a second DMS filter, one terminal of the first DMS filter being connected to one of the two second balanced terminals, and one terminal of the second DMS filter is connected to another of the two second balanced terminals; and a matching circuit including a first inductor and a second inductor, the first inductor b…

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Frequently asked questions

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What does patent US9148115B2 cover?
A filter includes: a filter circuit connected between a first terminal and a second terminal; and a matching circuit connected between the filter circuit and the second terminal, wherein an impedance viewed from the second terminal toward the matching circuit is less than an impedance viewed from a node between the filter circuit and the matching circuit toward the filter circuit.
Who is the assignee on this patent?
Taiyo Yuden Kk
What technology area does this patent fall under?
Primary CPC classification H03H9/0004. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Sep 29 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).