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Class Information
Number: 330/110
Name: Amplifiers > Signal feedback > Nonlinear impedance element in loop path
Description: Subject matter wherein the "loop path" (see (3) Note under subclass 75 for the definition of loop path) includes a nonlinear impedance circuit element, which may be resistive, capacitive, or inductive, and whose impedance is such for changes in voltage applied thereto that the relationship between the voltage across such element to the current flow through the element is nonlinear.










Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8497462 Trans-impedance amplifier with variable bandwidth and digital coherent optical receiver installing the same Jul. 30, 2013
8405455 Amplifier and method for linearizing same Mar. 26, 2013
8085175 Linearizer Dec. 27, 2011
7952427 Signal amplifier circuit and optical receiver May. 31, 2011
7876152 High-impedance level-shifting amplifier capable of handling input signals with a voltage magnitude that exceeds a supply voltage Jan. 25, 2011
7855598 Electronic signal processor Dec. 21, 2010
7800439 High speed preamplifier circuit, detection electronics, and radiation detection systems therefrom Sep. 21, 2010
7733174 Feedback controlled power limiting for signal amplifiers Jun. 8, 2010
7702301 Method and apparatus for distortion correction of RF amplifiers Apr. 20, 2010
7683710 Electronic signal processor Mar. 23, 2010
7680468 Method and apparatus for distortion correction of RF amplifiers Mar. 16, 2010
7667176 Readout technique for increasing or maintaining dynamic range in image sensors Feb. 23, 2010
7573126 Matching circuits on optoelectronic devices Aug. 11, 2009
7547889 Photon detection device Jun. 16, 2009
7511572 High-impedance level-shifting amplifier capable of handling input signals with a voltage magnitude that exceeds a supply voltage Mar. 31, 2009
7492221 Power conversion regulator with exponentiating feedback loop Feb. 17, 2009
7459972 Amplifiers with compensation Dec. 2, 2008
7449670 Amplifier circuit and optical pickup device Nov. 11, 2008
7385446 High-impedance level-shifting amplifier capable of handling input signals with a voltage magnitude that exceeds a supply voltage Jun. 10, 2008
7332971 Multi-gigabit/s transimpedance amplifier for optical networks Feb. 19, 2008
7317351 Low noise amplifier Jan. 8, 2008
7297917 Readout technique for increasing or maintaining dynamic range in image sensors Nov. 20, 2007
7227246 Matching circuits on optoelectronic devices Jun. 5, 2007
7205845 Amplifier circuit for converting the current signal from an optical receiving element into a voltage signal Apr. 17, 2007
7173487 Power amplification circuit and communication device using the same Feb. 6, 2007
7126420 R.F. output power control Oct. 24, 2006
7088393 Output-compensated buffers with source-follower input structure, methods of operating same, and image capture devices using same Aug. 8, 2006
7061313 Dual feedback linear amplifier Jun. 13, 2006
7046080 Signal processing circuit May. 16, 2006
7030702 Optical receiver with wide dynamic range transimpedance amplifier Apr. 18, 2006
6960754 Photoelectric current and voltage converting circuit Nov. 1, 2005
6956195 Photoelectric current and voltage converting circuit Oct. 18, 2005
6900698 Negative feedback amplifier with electrostatic discharge protection circuit May. 31, 2005
6876255 Linear amplifier using non-linear CMOS capacitors Apr. 5, 2005
6873207 Power amplification circuit and communication device using the same Mar. 29, 2005
6847263 Optical receiver with wide dynamic range transimpedance amplifier Jan. 25, 2005
6841771 Optical coupling device and light-receiving circuit of same Jan. 11, 2005
6838936 Low-noise amplifier device having negative feedback via a controlled current source, and method of using the amplifier device Jan. 4, 2005
6816010 Transimpedance amplifier Nov. 9, 2004
6812788 Amplifying circuit Nov. 2, 2004
6809589 Low voltage large swing/high linearity analog buffer with servo amplifier and feedback loop Oct. 26, 2004
6778021 Wide dynamic range transimpedance amplifier with a controlled low frequency cutoff at high optical power Aug. 17, 2004
6771132 Wide dynamic range transimpedance amplifier with a controlled low frequency cutoff at high optical power Aug. 3, 2004
6720826 Transimpedance amplifier Apr. 13, 2004
6693487 Signal processing circuit for floating signal sources using positive feedback Feb. 17, 2004
6664858 Adjustable peaking capacitor in high-speed optical fiber communication receiver Dec. 16, 2003
6624918 Voltage control of optical receiver bandwidth Sep. 23, 2003
6621341 Diagnostic medical ultrasound systems having a method and circuitry for front-end gain control Sep. 16, 2003
6614312 Low noise amplifier and imaging element using same Sep. 2, 2003
6597245 Preamplifier Jul. 22, 2003

1 2 3 4










 
 
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