Amplifiers – Sum and difference amplifiers
Reexamination Certificate
2008-06-03
2008-06-03
Pascal, Robert J. (Department: 2817)
Amplifiers
Sum and difference amplifiers
Reexamination Certificate
active
07382184
ABSTRACT:
An amplifier system comprises a first amplifier arranged to receive an input signal and a second amplifier arranged to receive a proportion of the input signal. A first potential divider is arranged to receive the output signal of the second amplifier and to feed a proportion of the output signal to the first amplifier. The first amplifier is arranged to subtract the proportion of the output signal of the second amplifier from the input signal to produce a difference signal for amplification by the first amplifier. There is also disclosed a method of amplifying a signal.
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Makino Jun
Ting Boon Ghee
Creative Technology Ltd
Pascal Robert J.
Swerdon Russell N.
Wong Alan
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