PROCESSING CIRCUIT DEVICE AND DISC DEVICE

Title:

PROCESSING CIRCUIT DEVICE AND DISC DEVICE

Document Type and Number:

WIPO Patent Application WO/2006/123635

Kind Code:

A1

Abstract:

Process of adding four differential signals is performed by inputting the differential signals to each of transistors (Tr21a-Tr21d, Tr22a-Tr22d), and filtering process is performed by a capacitor (C21) and resistors (R21, R22). An offset of a signal obtained by adding the four differential signals is removed by the transistors (Tr1, Tr2).

Inventors:

NISHIKAWA KOJI (JP)
HIRAGA MAKOTO (JP)

Application Number:

PCT/JP2006/309707

Publication Date:

November 23, 2006

Filing Date:

May 16, 2006

Export Citation:

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Assignee:

ROHM CO LTD (JP)
NISHIKAWA KOJI (JP)
HIRAGA MAKOTO (JP)

International Classes:

G11B7/09; G11B7/13

Foreign References:

JPH06103389A	1994-04-15
JP2003218727A	2003-07-31
JPH05325304A	1993-12-10

Attorney, Agent or Firm:

Sano, Shizuo (Bekkan 2-6, Tenmabashi-Kyomachi, Chuo-K, Osaka-Shi Osaka 32, JP)

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