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Class Information
Number: 250/214DC
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controlled circuit > Special photocell or electron tube circuits > Digital circuitry
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7569843 |
Method for processing receiver signal and optical sensor |
Aug. 4, 2009 |
| 7560683 |
Photo detecting circuit and noise elimination method utilized to produce a photo reception signal |
Jul. 14, 2009 |
| 7550706 |
Solid state imaging device and output circuit thereof having a protecting device |
Jun. 23, 2009 |
| 7541571 |
Image sensor having first and second charge transmitters |
Jun. 2, 2009 |
| 7536114 |
Method and system for converting an optical received pulse train into an electrical output pulse train |
May. 19, 2009 |
| 7531783 |
Variable gain constant bandwidth trans-impedance amplifier for fiber optic rate sensor |
May. 12, 2009 |
| 7462813 |
Semiconductor device and method with a light shielded second photodiode connected to a voltage regulator circuit |
Dec. 9, 2008 |
| 7408138 |
Analog-to-digital converter with noise compensation in CMOS image sensor |
Aug. 5, 2008 |
| 7342213 |
CMOS APS shared amplifier pixel with symmetrical field effect transistor placement |
Mar. 11, 2008 |
| 7327458 |
Spectral sensitivity composing system |
Feb. 5, 2008 |
| 7326903 |
Mixed analog and digital pixel for high dynamic range readout |
Feb. 5, 2008 |
| 7297917 |
Readout technique for increasing or maintaining dynamic range in image sensors |
Nov. 20, 2007 |
| 7288752 |
CMOS radiation-measuring circuit with a variable threshold |
Oct. 30, 2007 |
| 7265332 |
Light monitor, electronic circuit incorporating a light monitor, and method of making the same |
Sep. 4, 2007 |
| 7202463 |
Higher dynamic range image sensor with signal integration |
Apr. 10, 2007 |
| 7164114 |
Digital pixel sensor with clock count output and operating method thereof |
Jan. 16, 2007 |
| 7087879 |
Signal processing method and an evaluation circuit |
Aug. 8, 2006 |
| 7053392 |
Optical measuring apparatus for measuring objects on machines |
May. 30, 2006 |
| 7013036 |
Image sensing apparatus and method of controlling image sensing |
Mar. 14, 2006 |
| 6974942 |
Receiving apparatus, transmitting apparatus, and communication system |
Dec. 13, 2005 |
| 6914229 |
Signal offset for prevention of data clipping in a molecular array scanner |
Jul. 5, 2005 |
| 6838651 |
High sensitivity snap shot CMOS image sensor |
Jan. 4, 2005 |
| 6809804 |
System and method for providing improved event reading and data processing capabilities in a flow cytometer |
Oct. 26, 2004 |
| 6791485 |
Digital densitometer using light-to-frequency converter |
Sep. 14, 2004 |
| 6664556 |
Method and apparatus for a phototransistor pulse width converter |
Dec. 16, 2003 |
| 6635859 |
Method and apparatus for light to frequency conversion |
Oct. 21, 2003 |
| 6617566 |
Apparatus and method for optical pattern detection |
Sep. 9, 2003 |
| 6583400 |
Multichannel receiver circuit for parallel reception |
Jun. 24, 2003 |
| 6515784 |
Refractive index manipulating optical inverter |
Feb. 4, 2003 |
| 6444971 |
Method and system for compensating intensity fluctuations of an illumination system in a confocal microscope |
Sep. 3, 2002 |
| 6417503 |
Optical sensor circuit with output changing means |
Jul. 9, 2002 |
| 6194703 |
Photodiode array having a controllable dumping circuitry |
Feb. 27, 2001 |
| 6144024 |
Digital densitometer using voltage-controlled oscillator, counter, and look-up table |
Nov. 7, 2000 |
| 6137566 |
Method and apparatus for signal processing in a laser radar receiver |
Oct. 24, 2000 |
| 6011252 |
Method and apparatus for detecting low light levels |
Jan. 4, 2000 |
| 5850195 |
Monolithic light-to-digital signal converter |
Dec. 15, 1998 |
| 5742045 |
Apparatus using diode laser logic to form a configurable optical gate system |
Apr. 21, 1998 |
| 5712475 |
Light receiving circuit with variable threshold circuit |
Jan. 27, 1998 |
| 5581074 |
Inspection apparatus with stroboscope intensity compensation features |
Dec. 3, 1996 |
| 5192968 |
Photometer |
Mar. 9, 1993 |
| 5109358 |
Optical flip-flop circuit |
Apr. 28, 1992 |
| 5073718 |
Optical control of a microwave switch |
Dec. 17, 1991 |
| 4873428 |
Image processing apparatus using conversion means |
Oct. 10, 1989 |
| 4821036 |
Method of and apparatus for producing a digital indication of the time-integral of an electric current |
Apr. 11, 1989 |
| 4819197 |
Peak detector and imaging system |
Apr. 4, 1989 |
| 4795904 |
Electrical detector arrangements |
Jan. 3, 1989 |
| 4743856 |
Digital optical receiver circuit |
May. 10, 1988 |
| 4249109 |
Light digitizing circuit for an electronic flash device |
Feb. 3, 1981 |
| 4150286 |
Material flow monitoring circuit |
Apr. 17, 1979 |
| 3947692 |
Digital transducers |
Mar. 30, 1976 |
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