SIGNAL PROCESSING CIRCUIT - NEW JAPAN RADIO CO LTD

Title:

SIGNAL PROCESSING CIRCUIT

Document Type and Number:

Japanese Patent JP2007324787

Kind Code:

A

Abstract:

To stabilize the operation of a ground isolation amplifier for inputting a noise superposed signal and noise, and canceling the noise.

In this signal processing circuit 200A provided with a noise input terminal 202, a signal input terminal 201 for receiving a signal with noise input to the noise input terminal 202 superposed thereon, a ground terminal 203, and the ground isolation amplifier 210 for subtracting the noise input to the noise input terminal 202 from the signal input to the signal input terminal 201, antiparallel diodes D1 and D2 are connected between the noise input terminal 202 and the ground terminal 203 to restrict voltage amplification between the noise input terminal 202 and the ground terminal 203.

Inventors:

TORIGOE TAKAHIRO
SEIYAMA TAKAYUKI
KITAJIMA ATSUSHI
TAKEBUCHI KENJI

Application Number:

JP2006150851A

Publication Date:

December 13, 2007

Filing Date:

May 31, 2006

Export Citation:

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Assignee:

NEW JAPAN RADIO CO LTD

International Classes:

H04B15/02; H03F1/26; H03G11/02

Domestic Patent References:

JPH06237124A	1994-08-23
JPH1094168A	1998-04-10
JP2001326539A	2001-11-22
JPH02120941U	1990-10-01

Attorney, Agent or Firm:

Tsuneaki Nagao

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