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Class Information
Number: 250/214AG
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controlled circuit > Special photocell or electron tube circuits > Automatic gain control

Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8653433 Transimpedance amplifier and PON system Feb. 18, 2014
8624192 System for controlling photomultiplier gain drift and associated method Jan. 7, 2014
8575533 High dynamic range imager circuit and method for reading high dynamic range image Nov. 5, 2013
8541728 Signal monitoring and control system for an optical navigation sensor Sep. 24, 2013
8541727 Signal monitoring and control system for an optical navigation sensor Sep. 24, 2013
8525093 Automatic set-up for instrument functions Sep. 3, 2013
8520207 Detection system for birefringence measurement Aug. 27, 2013
8369714 Burst optical signal receiving device Feb. 5, 2013
8248165 Amplifier and optical module performing gain control Aug. 21, 2012
8238760 Optical receiver with improved noise tolerance Aug. 7, 2012
8190035 Burst mode linear optical receivers May. 29, 2012
8160457 PIN/TIA system for use in FTTx applications Apr. 17, 2012
8150272 Systems and methods for transferring single-ended burst signal onto differential lines, especially for use in burst-mode receiver Apr. 3, 2012
8139957 High sensitivity optical receiver employing a high gain amplifier and an equalizing circuit Mar. 20, 2012
8121495 Current mirror circuit and optical receiver circuit using the same Feb. 21, 2012
8055138 Photosensor operating point Nov. 8, 2011
8035071 Contamination-inspecting apparatus and detection circuit Oct. 11, 2011
8035074 Automatic gain control for motion encoder signals Oct. 11, 2011
8032035 Light detecting apparatus and output light intensity controller Oct. 4, 2011
8028917 Adaptive optimizations for signal processing in imaging readers Oct. 4, 2011
7970291 Optical-receiving apparatus and bias-voltage-control method used for the optical-receiving apparatus Jun. 28, 2011
7952427 Signal amplifier circuit and optical receiver May. 31, 2011
7928355 Current subtraction pixel Apr. 19, 2011
7912383 Configurable post-amplifiers that are capable of being configured to perform either substantially linear or limiting amplification for use in optical receivers Mar. 22, 2011
7897900 Imager system with gain control means Mar. 1, 2011
7866903 Printer and emission intensity adjusting method Jan. 11, 2011
7830560 System and method for adaptive digital ramp current control Nov. 9, 2010
7822349 Digital iterative gain control Oct. 26, 2010
7807956 Current detection circuit Oct. 5, 2010
7792435 Control device with a switchable bandwidth Sep. 7, 2010
7783205 Learning infrared amplifier for remote control devices Aug. 24, 2010
7750331 Method and device for imaging an interior of a turbid medium using an amplification factor selected from an estimate of expected electrical signal strength Jul. 6, 2010
7714266 Method and apparatus for measuring source follower gain in an image sensor array May. 11, 2010
7705284 High-speed single-photon detector in telecommunication wavelength band Apr. 27, 2010
7696467 Semiconductor photosensor device with sensitivity region for wide dynamic range and information apparatus Apr. 13, 2010
7676152 Optical power monitor for PON telecommunication Mar. 9, 2010
7667176 Readout technique for increasing or maintaining dynamic range in image sensors Feb. 23, 2010
7657191 Variable bandwidth transimpedance amplifier with one-wire interface Feb. 2, 2010
7645978 Image sensing apparatus and image sensing method using image sensor having two or more different photoelectric conversion characteristics Jan. 12, 2010
7605358 Photodetector having dual photodiode and gain adjusting amplifiers Oct. 20, 2009
7601940 Gain control system for visible light communication systems Oct. 13, 2009
7598480 Apparatus and method of image processing to avoid image saturation Oct. 6, 2009
7598479 Circuit for varying gain of preamplifier Oct. 6, 2009
7592580 Optical amplifier and gain control method Sep. 22, 2009
7589309 Imager system for an automated microscope Sep. 15, 2009
7579915 Electronic circuit Aug. 25, 2009
7560683 Photo detecting circuit and noise elimination method utilized to produce a photo reception signal Jul. 14, 2009
7536114 Method and system for converting an optical received pulse train into an electrical output pulse train May. 19, 2009
7532706 Imaging apparatus, imaging system, imaging method, and computer program May. 12, 2009
7528357 Pulse detector which employs a self-resetting pulse amplifier May. 5, 2009

1 2 3 4 5 6

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