| |
 |
|
Class Information
Number: 250/214R
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controlled circuit > Special photocell or electron tube circuits
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5747792 |
Circuit and method for preventing laser jamming of night vision goggles |
May. 5, 1998 |
| 5747791 |
Method and devices for wavelength and power demodulation based on the use of a quantum well electroabsorption filtering detector |
May. 5, 1998 |
| 5748303 |
Light sensing device |
May. 5, 1998 |
| 5742047 |
Highly uniform five volt CMOS image photodiode sensor array with improved contrast ratio and dynamic range |
Apr. 21, 1998 |
| 5742044 |
Light sensing array device and apparatus incorporating such |
Apr. 21, 1998 |
| 5731595 |
Diagnostic input for programmable logic controller |
Mar. 24, 1998 |
| 5731578 |
Solid-state imaging apparatus |
Mar. 24, 1998 |
| 5729009 |
Method for generating quasi-sinusoidal signals |
Mar. 17, 1998 |
| 5724967 |
Noise reduction apparatus for low level analog signals |
Mar. 10, 1998 |
| 5721424 |
Avalanche photodiode apparatus biased with a modulating power signal |
Feb. 24, 1998 |
| 5717201 |
Double four-quadrant angle-position detector |
Feb. 10, 1998 |
| 5714753 |
Solid state imaging device |
Feb. 3, 1998 |
| 5712475 |
Light receiving circuit with variable threshold circuit |
Jan. 27, 1998 |
| 5712476 |
Electrophoresis and fluorescence detection apparatus |
Jan. 27, 1998 |
| 5703353 |
Offset removal and spatial frequency band filtering circuitry for photoreceiver signals |
Dec. 30, 1997 |
| 5698844 |
Solid-state image sensing device and method of controlling the solid-state image sensing device |
Dec. 16, 1997 |
| 5693934 |
Luminance detecting circuit in which plural photoinduced currents are amplified and combined onto a common current conductor |
Dec. 2, 1997 |
| 5691532 |
Photonic heterodyning having an image component separator |
Nov. 25, 1997 |
| 5684295 |
Solid state image pickup device having dual integrator |
Nov. 4, 1997 |
| 5656806 |
Circuit to eliminate the dark current of a photodetector |
Aug. 12, 1997 |
| 5654538 |
Optically addressed general purpose programmable logic device |
Aug. 5, 1997 |
| 5654794 |
Portable light intensity monitoring systems |
Aug. 5, 1997 |
| 5633492 |
Real time monitoring of changes in objects or media |
May. 27, 1997 |
| 5625182 |
Light sensor with position compensation accomplished by area distribution |
Apr. 29, 1997 |
| 5623140 |
Nonbiased bistable optical device having a lower mirror having a plurality of reflective layers repeatedly formed on a substrate |
Apr. 22, 1997 |
| 5602385 |
Two wave band radiation detector having two facing photodetectors and method for making same |
Feb. 11, 1997 |
| 5594256 |
High voltage switch for pockels cells |
Jan. 14, 1997 |
| 5591962 |
Synchronous signal detection apparatus with a photoconductive photodetector |
Jan. 7, 1997 |
| 5589683 |
Optical receiver apparatus for quickly detecting loss of a composite optical signal input employing a loss-of-clock detector |
Dec. 31, 1996 |
| 5585623 |
Method and apparatus for detecting a light signal in the presence of noise |
Dec. 17, 1996 |
| 5581077 |
Optical receiver with a high impedance preamplifier |
Dec. 3, 1996 |
| 5578815 |
Bias circuit for maintaining a constant potential difference between respective terminals of more than one avalanche photodiode |
Nov. 26, 1996 |
| 5576533 |
Circuit for converting solar energy into AC power |
Nov. 19, 1996 |
| 5572074 |
Compact photosensor circuit having automatic intensity range control |
Nov. 5, 1996 |
| 5565672 |
Optical transimpedance receiver with compensation network |
Oct. 15, 1996 |
| 5563653 |
Focussed output microchannel plate for an image intensifier tube |
Oct. 8, 1996 |
| 5561287 |
Dual photodetector for determining peak intensity of pixels in an array using a winner take all photodiode intensity circuit and a lateral effect transistor pad position circuit |
Oct. 1, 1996 |
| 5559340 |
Photocoupler capable of effecting phase control with an embedded junction capacitor |
Sep. 24, 1996 |
| 5559331 |
Split-ring infrared detector |
Sep. 24, 1996 |
| 5557440 |
Noise-insensitive optoencoding techniques with compensation for device variations |
Sep. 17, 1996 |
| 5548112 |
Photodetecting circuit using avalanche photodiode |
Aug. 20, 1996 |
| 5532474 |
Active quench circuit and reset circuit for avalanche photodiode |
Jul. 2, 1996 |
| 5523555 |
Photodetector device having a semiconductive conjugated polymer |
Jun. 4, 1996 |
| 5519389 |
Signal synchronized digital frequency discriminator |
May. 21, 1996 |
| 5498931 |
Method for automatic switching and control of lighting |
Mar. 12, 1996 |
| 5495100 |
Phase difference detecting method, circuit and apparatus |
Feb. 27, 1996 |
| 5481118 |
On-chip light sensor |
Jan. 2, 1996 |
| 5479208 |
Image sensors and driving method thereof |
Dec. 26, 1995 |
| 5477047 |
Direct-contact type image sensor device, an image sensor unit, and methods for producing the same |
Dec. 19, 1995 |
| 5466944 |
Optically-coupled differential line receiver |
Nov. 14, 1995 |
|
|
|
