Differential amplifier with a feedback unit

Details Differential amplifier with a feedback unit Differential amplifier with a feedback unit

2010-03-17

2011-12-20

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S052000, C327S063000, C327S065000, C327S067000

Reexamination Certificate

active

08081015

ABSTRACT:
A differential amplifier includes an amplification unit and a feedback unit. The amplification unit amplifies a voltage difference between a first input signal and a second input signal and outputs a first output signal and a second output signal. The feedback unit amplifies a voltage difference between a first feedback signal based on the first output signal and a second feedback signal based on the second output signal.

REFERENCES:
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patent: 1487666 (2004-04-01), None
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patent: 07-085682 (1995-03-01), None
patent: 07-183741 (1995-07-01), None
patent: 2001-144559 (2001-05-01), None
patent: 2002-290172 (2002-10-01), None
Notice of Allowance issued from Chinese State Intellectual Property Office on May 12, 2010.
Preliminary Rejection issued from Japanese Patent Office on Sep. 5,2011.

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