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Class Information
Number: 330/308
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including atomic particle or radiant energy impinging on a semiconductor
Description: Subject matter in which the amplifying device semiconductor body is subjected to radiant energy which may be in the form of light, free (unrestrained) electromagnetic energy, gamma rays, etc.., or atomic particle bombardment, such as alpha or beta rays, etc..










Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
6732059 Ultra-low background gas-filled alpha counter May. 4, 2004
6720826 Transimpedance amplifier Apr. 13, 2004
6713749 Monolithic loss-of-signal detect circuitry Mar. 30, 2004
6714082 Semiconductor amplifier circuit Mar. 30, 2004
6710324 Optoelectronic distance measuring device Mar. 23, 2004
6696887 Transistor-based interface circuitry Feb. 24, 2004
6696866 Method and apparatus for providing a supply voltage based on an envelope of a radio frequency signal Feb. 24, 2004
6690239 High bandwidth, low power, single stage cascode transimpedance amplifier for short haul optical links Feb. 10, 2004
6674974 Method and apparatus for tracking in an optical communications system Jan. 6, 2004
6667661 Laser diode driver with high power efficiency Dec. 23, 2003
6664858 Adjustable peaking capacitor in high-speed optical fiber communication receiver Dec. 16, 2003
6658217 Optical receiver Dec. 2, 2003
6639472 High bandwidth, low power, single stage cascode transimpedance amplifier for short haul optical links Oct. 28, 2003
6639473 Method and/or apparatus for controlling a common-base amplifier Oct. 28, 2003
6624918 Voltage control of optical receiver bandwidth Sep. 23, 2003
6614312 Low noise amplifier and imaging element using same Sep. 2, 2003
6608710 Automatic gain control circuit and optical receiver Aug. 19, 2003
6597245 Preamplifier Jul. 22, 2003
6593810 2.5 Gigabits-per-second transimpedance amplifier Jul. 15, 2003
6590455 Common-base amplifier with high input overload and/or tunable transimpedance Jul. 8, 2003
6587004 Signal amplifier and optical signal receiver using the same Jul. 1, 2003
6587003 Charge sensitive preamplifier with pulsed source reset Jul. 1, 2003
6573789 Signal processing circuit for floating signal sources using positive feedback Jun. 3, 2003
6559724 Techniques for enhancing gain in a quasi-optic grid array May. 6, 2003
6552605 Differential transimpedance amplifier for optical communication Apr. 22, 2003
6552615 Method and system for compensation of low-frequency photodiode current in a transimpedance amplifier Apr. 22, 2003
6545544 Efficient high overdrive transimpedance amplifiers Apr. 8, 2003
6531925 Heterojunction bipolar transistor optoelectronic transimpedance amplifier using the first transistor as an optical detector Mar. 11, 2003
6525858 Optical receiver and optical network system using thereof Feb. 25, 2003
6498334 Infrared transreceiver with isolated analog output Dec. 24, 2002
6448860 Device for converting small currents impressed at the input of the device by a non-ideal electric source of current into voltage signals Sep. 10, 2002
6444970 Miniature low-noise photodiode system Sep. 3, 2002
6426494 Optical signal detector and optical signal detecting method Jul. 30, 2002
6417503 Optical sensor circuit with output changing means Jul. 9, 2002
6396351 Preamplifier circuit for a photodetector May. 28, 2002
6384689 Preamplifier for optical receivers May. 7, 2002
6359715 Photoelectric conversion, method light receiving circuit, and optical communication system Mar. 19, 2002
6359517 Photodiode transimpedance circuit Mar. 19, 2002
6344651 Differential current mode output circuit for electro-optical sensor arrays Feb. 5, 2002
6342694 Adjustable-free optical signal receiver Jan. 29, 2002
6340916 Ransimpedance amplifier circuit Jan. 22, 2002
6339363 Low FPN high gain capacitive transimpedance amplifier for use with capacitive sensors Jan. 15, 2002
6329881 Preamplifier Dec. 11, 2001
6323734 Trans-impedance amplifier Nov. 27, 2001
6320890 Laser driving circuit capable of stably controlling laser output Nov. 20, 2001
6313458 Gain-adjustable photoreceiver circuit with photoelectric converter and amplifier Nov. 6, 2001
6307433 Preamplifier for high speed optical fiber communication system Oct. 23, 2001
6300669 Semiconductor integrated circuit device and method of designing same Oct. 9, 2001
6297701 Wide dynamic range transimpedance amplifier Oct. 2, 2001
6275114 Impedance matched CMOS transimpedance amplifier for high-speed fiber optic communications Aug. 14, 2001

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