Bidirectional switch and switch circuit using the bidirectional switch

US8994443B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8994443-B2
Application numberUS-201113221523-A
CountryUS
Kind codeB2
Filing dateAug 30, 2011
Priority dateAug 31, 2010
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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Abstract

Official abstract text for this publication.

In a bidirectional switch using a metal-oxide-semiconductor field-effect transistor (MOSFET), the source terminal and the backgate terminal of the MOSFET are connected to each other via a transfer gate. A switch may be used between the connection point of the backgate terminal and the transfer gate of the MOSFET and the ground potential (where the MOSFET is an n-channel type) or supply potential (where the MOSFET is a p-channel type).

First claim

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What is claimed is: 1. A switch circuit to be mounted in a mobile device having a shared terminal that allows insertion of a terminal of a USB cable or insertion of a terminal of a cable dedicated to the transmission of audio signals in a shared manner, comprising: a USB switch connected between the shared terminal and a USB driver within the mobile device; an audio switch connected to the shared terminal and connected in parallel with the USB switch; a second switch connected…

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What does patent US8994443B2 cover?
In a bidirectional switch using a metal-oxide-semiconductor field-effect transistor (MOSFET), the source terminal and the backgate terminal of the MOSFET are connected to each other via a transfer gate. A switch may be used between the connection point of the backgate terminal and the transfer gate of the MOSFET and the ground potential (where the MOSFET is an n-channel type) or supply potentia…
Who is the assignee on this patent?
Yamada Kouichi, Semiconductor Components Ind
What technology area does this patent fall under?
Primary CPC classification H10D12/00. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 31 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).