Amplifiers – Hum or noise or distortion bucking introduced into signal...
Reexamination Certificate
2005-07-19
2005-07-19
Mottola, Steven J. (Department: 2817)
Amplifiers
Hum or noise or distortion bucking introduced into signal...
C330S136000
Reexamination Certificate
active
06919764
ABSTRACT:
A method of controlling an amplifier, the method comprising a sampling step of using a sampler to obtain digital samples of both an output signal of said amplifier and a reference signal, a derivation step of obtaining from said samples values of a first parameter and associated values of a second parameter, an averaging step of averaging the first parameter values over ranges of the second parameter such that, for each range, an average of the first parameter is obtained by averaging the first parameter values whose associated second parameter values lie in the range, a generation step of generating a control signal for said amplifier from said averages, a suppression step of using said samples of said reference signal to inhibit the effect upon said control signal of errors in the operation of said sampler and a control step of applying the control signal to said amplifier to direct the operation of said amplifier. The invention also relates to apparatus involved in carrying out the method.
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International Search Report, received Aug. 23, 2004.
British Search Report, Dated Aug. 17, 2004.
Bishop John
Kenington Peter Blakeborough
Rogers Jonathan Paul
Smithson Antony James
Andrew Corporation
Mottola Steven J.
Wood Herron & Evans LLP
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