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Class Information
Number: 250/214LA
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controlled circuit > Special photocell or electron tube circuits > Amplifier type > Light amplifier type
Description:


Sub-classes under this class:

Class Number Class Name Patents
250/214LS Switching type 168
250/214VT Vacuum tube type 654


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7460792 Receiving circuit and electronic apparatus for optical communication Dec. 2, 2008
7460788 Transmitting and receiving device Dec. 2, 2008
7449669 Receiving apparatus Nov. 11, 2008
7449670 Amplifier circuit and optical pickup device Nov. 11, 2008
7427733 Gated image intensifier Sep. 23, 2008
7423250 Systems, circuits and methods for extending the detection range of an inspection system by avoiding circuit saturation Sep. 9, 2008
7376359 Digital regulated light receive module and regulation method May. 20, 2008
7373091 Multicasting optical switch fabric and method of detection based on novel heterodyne receiver May. 13, 2008
7330668 Low noise light receiver Feb. 12, 2008
7326905 Photodetector and optical receiver Feb. 5, 2008
7317566 Electrode with transparent series resistance for uniform switching of optical modulation devices Jan. 8, 2008
7298978 Method and apparatus for optimizing decision level of signal output from optical receiver Nov. 20, 2007
7297921 Photodetection circuit and confocal microscope that has it Nov. 20, 2007
7274010 Semiconductor optical amplifier device amplifying an externally applied light signal, semiconductor optical amplification driving device and semiconductor light receiving apparatus Sep. 25, 2007
7212749 Signal receiver having wide band amplification capability May. 1, 2007
7173237 Ruggedized digital low-light viewing device Feb. 6, 2007
7170606 Multi-way LED-based surface reflectance sensor and spectrophotometer Jan. 30, 2007
7129462 Digitally enhanced image intensification camera Oct. 31, 2006
7113321 Optical deflection apparatus and manufacturing method thereof, optical deflection array, imaging apparatus, and image projection display apparatus Sep. 26, 2006
7057149 Method and system for controlling a secondary amplifier with a primary amplifier in an optical network Jun. 6, 2006
6974946 Transmission stacked photodetector Dec. 13, 2005
6927383 Radiation hardened visible P-I-N detector Aug. 9, 2005
6915083 Signal receiver having wide band amplification capability Jul. 5, 2005
6903324 Optical amplifier amplifying wavelength multiplexed light, and wavelength multiplexed light communications system Jun. 7, 2005
6898890 Night-vision optical device having controlled life expectancy May. 31, 2005
6894266 Single chip ASIC and compact packaging solution for an avalanche photodiode (APD) and bias circuit May. 17, 2005
6838654 Photodetection system and circuit for amplification Jan. 4, 2005
6834165 Parallel opto-electric structure for high sensitivity and wide bandwidth optical transceiver Dec. 21, 2004
6815656 Integrated optical cross-connect amplifier Nov. 9, 2004
6765189 Small form factor in-line switched multichannel fiber optic power monitoring apparatus Jul. 20, 2004
6765188 Method and apparatus for converting the output of a photodetector to log voltage Jul. 20, 2004
6756578 Photocell bias circuit Jun. 29, 2004
6740859 Fractional substraction resistive readout for position sensitive photo-multiplier tubes May. 25, 2004
6740807 Light-receiving device and image sensor May. 25, 2004
6713749 Monolithic loss-of-signal detect circuitry Mar. 30, 2004
6710324 Optoelectronic distance measuring device Mar. 23, 2004
6707023 Differential photoelectric receiver circuit Mar. 16, 2004
6665468 Focal plane array optical data extraction and memory Dec. 16, 2003
6642493 Compact modular, configurable base for position sensitive photo-multipliers Nov. 4, 2003
6624405 BIST for testing a current-voltage conversion amplifier Sep. 23, 2003
6529281 Position sensitive detectors and distance measuring apparatus using them Mar. 4, 2003
6501064 Image sensor with active sensor elements Dec. 31, 2002
6498332 Solid-state image sensing device Dec. 24, 2002
6495816 Method and apparatus for converting the output of a photodetector to a log voltage Dec. 17, 2002
6467914 Night vision goggles compatible with full color display Oct. 22, 2002
6423961 Pixel readout switched capacitor buffer circuit and method therefor Jul. 23, 2002
6417503 Optical sensor circuit with output changing means Jul. 9, 2002
6410902 Optical receiver Jun. 25, 2002
6396048 Device and method for detecting an optical signal May. 28, 2002
6365951 Methods on constructing an avalanche light emitting diode Apr. 2, 2002

1 2 3 4


 
 
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