Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Variable gain circuit
A variable gain circuit includes a variable gain amplifier which receives an input signal, outputs an amplified signal, and includes a first field-effect transistor, a gain control signal compensation circuit which outputs a gain control signal for controlling the gain of the variable gain amplifier and includes a second field-effect transistor, and a gain deviation correction circuit which corrects a gain deviation based on the variable gain amplifier and the gain control signal compensation circuit.
Kabushiki Kaisha Toshiba
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Shoji Osamu
Otaka Watanabe