Amplifier

Miscellaneous active electrical nonlinear devices – circuits – and – Specific signal discriminating without subsequent control – By amplitude

Reexamination Certificate

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Details

C327S064000, C327S067000

Reexamination Certificate

active

07961011

ABSTRACT:
An amplifier includes: an operation amplifier including a positive input terminal and a negative input terminal; and a detector which detects that a difference between a voltage of the positive input terminal and a voltage of the negative input terminal is equal to or exceeds a predetermined value and outputs a detection signal.

REFERENCES:
patent: 5706222 (1998-01-01), Bonaccio et al.
patent: 6590436 (2003-07-01), Jordanger et al.
patent: 7560959 (2009-07-01), Paraschou et al.
patent: 7633320 (2009-12-01), Yamamoto et al.
patent: 05-102767 (1993-04-01), None
patent: 10-163769 (1998-06-01), None
patent: A-2000-106511 (2000-04-01), None
Korean Intellectual Property Office, Notice of Preliminary Rejection for Application No. 10-2008-0050906 (Dated: Jan. 27, 2010; 6 pgs.).
Japanese Patent Office, Notice of Reasons for Refusal for Application No. 2007-143177 (Dispatch Date: Jul. 7, 2009; 3 pgs.).
The State Intellectual Property Office of the People's Republic of China, “Notification of First Office Action” Chinese Patent Application No. 200810161950.7 dated Jan. 27, 2011, 4 pages.

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