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Class Information
Number: 330/4.9
Name: Amplifiers > Parametric amplifiers > Semiconductor type (e.g., with semiconductor diode)
Description: Subject matter wherein the nonlinear reactance is of the semiconductor type (e.g., a diode).

Patents under this class:

Patent Number Title Of Patent Date Issued
8045807 Pattern edge detecting method and pattern evaluating method Oct. 25, 2011
8040586 Metamaterials Oct. 18, 2011
7990210 Amplifier, amplifying method, and filter Aug. 2, 2011
7911257 MOSFET parametric amplifier Mar. 22, 2011
7649958 Transmit signal generator and method Jan. 19, 2010
6611168 Differential parametric amplifier with physically-coupled electrically-isolated micromachined structures Aug. 26, 2003
6265934 Q-switched parametric cavity amplifier Jul. 24, 2001
6111472 Quasi-optical amplifier Aug. 29, 2000
5341114 Integrated limiter and amplifying devices Aug. 23, 1994
5089787 Optically-coupled high frequency amplifier Feb. 18, 1992
5075573 Low-noise optical wave amplification device Dec. 24, 1991
4805237 Parametric diode amplifier Feb. 14, 1989
4610031 Receiver including surface acoustic wave amplifier Sep. 2, 1986
4484144 Semiconductor light amplifier Nov. 20, 1984
4461039 Quasi-optical balanced biconical mixer Jul. 17, 1984
4426737 Circuit for generating a pumping signal for a surface elastic wave parametric device in a receiver Jan. 17, 1984
4410833 Solid state magnetron Oct. 18, 1983
4361814 Distributed optical parametric amplifier Nov. 30, 1982
4348650 Surface-acoustic-wave parametric device Sep. 7, 1982
4317231 Microwave circuit for a parametric upper sideband down converter Feb. 23, 1982
4287605 Directional filter for mixers, converters and the like Sep. 1, 1981
4286276 Dual Schottky contact avalanche semiconductor structure with electrode spacing equal to EPI layer thickness Aug. 25, 1981
4254388 Frequency selector apparatus Mar. 3, 1981
4232277 Microwave oscillator for microwave integrated circuit applications Nov. 4, 1980
4160215 Single diode upper sideband terminated parametric amplifier Jul. 3, 1979
4158817 Microwave input circuit with parametric down converter Jun. 19, 1979
4138648 Balanced synchronous parametric amplifier Feb. 6, 1979
4131858 Beam lead dual parametric amplifier Dec. 26, 1978
4099228 Harmonic mixing with an anti-parallel diode pair Jul. 4, 1978
4061990 Frequency combining circuit Dec. 6, 1977
4051364 Photoparamp array multiplexer Sep. 27, 1977
4030049 Broadband low noise parametric amplifier Jun. 14, 1977
4020341 Generating and using coherent optical radiation Apr. 26, 1977
3992675 Broadband, upper sideband terminated, low-noise parametric amplifier Nov. 16, 1976
3991373 Input circuit for a microwave receiving system Nov. 9, 1976
3934208 Low noise modular parametric amplifier Jan. 20, 1976

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