Method and apparatus for removing an error signal component from

Electricity: power supply or regulation systems – Self-regulating – Using a three or more terminal semiconductive device as the...

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G05F 326

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active

056776209

ABSTRACT:
A scaling circuit in which a signal, which contains an ambient offset portion and a desired signal portion, in current mode, is scaled using a resistance means. The offset portion is substantially eliminated using constant flow rate means in the form of a current mirror, thus enabling the entire scaling dynamic of the circuit to be utilized. The teaching of the invention is directed in particular to the elimination of an error signal component from a Received Signal Strength Indicator (RSSI) signal that is output from a radio frequency receiver, such as a radiotelephone receiver.

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IBM Technical Disclosure Bulletin vol. 26, No. 3B Aug. 1983 "Beta-Compensated Current Mirror Circuit" D.D. Myro and R. Pelc.

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