Pulse or digital communications – Receivers – Automatic gain control
Reexamination Certificate
2011-01-11
2011-01-11
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Receivers
Automatic gain control
C375S294000, C375S297000, C375S311000, C375S327000
Reexamination Certificate
active
07869549
ABSTRACT:
A method of gain control by amplifying an input signal with a variable gain amplifier to generate an output signal where the gain of the variable gain amplifier is selected based upon a control signal presented at a control input of the variable gain amplifier. When the output signal is larger than the upper boundary, incrementally changing the magnitude of the control signal so as to reduce the gain of the variable gain amplifier in a step-wise linear fashion. When the output signal is smaller than the lower boundary, incrementally changing the magnitude of the control signal so as to increase the gain of the variable gain amplifier in a step-wise linear fashion.
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Office Action with English Translation for Chinese Application No. 200410056663.1, mailing date Feb. 27, 2009, pp. 21.
Tang Shunbai
Yang Fang
Jorgenson Lisa K.
Kubids William J.
Liu Shuwang
Shenzhen STS Microelectronics Co. Ltd.
Timory Kabir A
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