| |
 |
|
Class Information
Number: 250/214A
Name: Radiant energy > Photocells; circuits and apparatus > Photocell controlled circuit > Special photocell or electron tube circuits > Amplifier type
Description:
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7626628 |
Photoelectric conversion device, image sensor, optical reader, and method of driving photoelectric conversion device |
Dec. 1, 2009 |
| 7620330 |
Optical receiver device and method |
Nov. 17, 2009 |
| 7616057 |
Nested transimpedance amplifier |
Nov. 10, 2009 |
| 7616062 |
Received-light amplifier |
Nov. 10, 2009 |
| 7612322 |
Temperature-compensated high dynamic range optical receiver |
Nov. 3, 2009 |
| 7605649 |
Nested transimpedance amplifier |
Oct. 20, 2009 |
| 7601939 |
Solid-state image-pickup device with column-line amplifiers and limiter |
Oct. 13, 2009 |
| 7598812 |
Shorted input detection for amplifier circuits |
Oct. 6, 2009 |
| 7598479 |
Circuit for varying gain of preamplifier |
Oct. 6, 2009 |
| 7592580 |
Optical amplifier and gain control method |
Sep. 22, 2009 |
| 7589316 |
Scanning beam imaging with adjustable detector sensitivity or gain |
Sep. 15, 2009 |
| 7589304 |
Solid-state image-pickup device with column-line amplifiers and limiter |
Sep. 15, 2009 |
| 7573016 |
Amplification type solid-state imaging device |
Aug. 11, 2009 |
| 7557333 |
Optical signal receiving circuit and optical signal receiving apparatus |
Jul. 7, 2009 |
| 7557334 |
Active pixel image sensor with common gate amplifier |
Jul. 7, 2009 |
| 7553152 |
Flame detector trapezoidal excitation generator output control circuit and method |
Jun. 30, 2009 |
| 7554072 |
Amplifier configuration with noise reduction for a photodiode |
Jun. 30, 2009 |
| 7550700 |
Light-receiving semiconductor device and optical pickup device |
Jun. 23, 2009 |
| 7544921 |
Linear distributed pixel differential amplifier having mirrored inputs |
Jun. 9, 2009 |
| 7536107 |
Optical offset signal cancellation for optical receiver |
May. 19, 2009 |
| 7534981 |
Optical semiconductor device having a shield wire and optical pickup device having a shield wire |
May. 19, 2009 |
| 7531783 |
Variable gain constant bandwidth trans-impedance amplifier for fiber optic rate sensor |
May. 12, 2009 |
| 7531784 |
Semiconductor device and electronic appliance using the same |
May. 12, 2009 |
| 7528357 |
Pulse detector which employs a self-resetting pulse amplifier |
May. 5, 2009 |
| 7525078 |
Photodetector array with background current compensation means |
Apr. 28, 2009 |
| 7521662 |
Portable handheld artificial light detector |
Apr. 21, 2009 |
| 7518094 |
Compensation of nonuniformity among multiple sensing diodes in a multiple sensor device |
Apr. 14, 2009 |
| 7514665 |
Differential amplifier circuit with rectifier for optical pick-up device |
Apr. 7, 2009 |
| 7515082 |
Photo-detector filter having a cascaded low noise amplifier |
Apr. 7, 2009 |
| 7509052 |
Optical receiver, optical transmitter and optical transceiver |
Mar. 24, 2009 |
| 7507947 |
Method and system to differentially enhance sensor dynamic range using enhanced common mode reset |
Mar. 24, 2009 |
| 7509113 |
Monolithic optical autocompensation read-out circuit for precise reflection measurements of distances |
Mar. 24, 2009 |
| 7504612 |
Ambient light processing system for controlling display device by sensing ambient light and method using the system |
Mar. 17, 2009 |
| 7501898 |
Method and apparatus for generating an optimized reference current threshold |
Mar. 10, 2009 |
| 7495203 |
In-situ power monitor providing an extended range for monitoring input optical power incident on avalanche photodiodes |
Feb. 24, 2009 |
| 7491925 |
Photodetector comprising a monolithically integrated transimpedance amplifier and evaluation electronics, and production method |
Feb. 17, 2009 |
| 7485838 |
Semiconductor device comprising a photoelectric current amplifier |
Feb. 3, 2009 |
| 7476839 |
Amplifier circuit for optical disk drive |
Jan. 13, 2009 |
| 7477109 |
Process and temperature-compensated transimpedance amplifier |
Jan. 13, 2009 |
| 7473881 |
Image sensor |
Jan. 6, 2009 |
| 7473883 |
Amplification with feedback capacitance for photodetector signals |
Jan. 6, 2009 |
| 7470886 |
Light receiving circuit, semiconductor laser device, and optical pickup device |
Dec. 30, 2008 |
| 7470885 |
Photodetector-amplifier circuit and optical pickup device |
Dec. 30, 2008 |
| 7470884 |
Signal strength detection circuits for high speed optical electronics |
Dec. 30, 2008 |
| 7468500 |
High performance charge detection amplifier for CCD image sensors |
Dec. 23, 2008 |
| 7459667 |
Active pixel image sensor with common gate amplifier mode |
Dec. 2, 2008 |
| 7460792 |
Receiving circuit and electronic apparatus for optical communication |
Dec. 2, 2008 |
| 7460788 |
Transmitting and receiving device |
Dec. 2, 2008 |
| 7456382 |
Load sensor, method of detecting load and pedestrian protection system |
Nov. 25, 2008 |
| 7453054 |
Method and apparatus for calibrating parallel readout paths in imagers |
Nov. 18, 2008 |
|
|
|
