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Class Information
Number: 330/250
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor)
Description: Subject matter in which the amplifying device is a semiconductor.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7459975 |
Baseband filter start-up circuit |
Dec. 2, 2008 |
| 7389194 |
Driver calibration methods and circuits |
Jun. 17, 2008 |
| 7385448 |
Circuitry for adaptively generating and using a reference voltage |
Jun. 10, 2008 |
| 7371564 |
Apparatus for automatically analyzing genetic and protein materials using photodiodes |
May. 13, 2008 |
| 7369781 |
Burst mode optical receiver considering characteristic of extinction ratio of received optical signal |
May. 6, 2008 |
| 7358968 |
Sustain driver, sustain control system, and plasma display |
Apr. 15, 2008 |
| 7358808 |
Method and device for amplification of data signals over power lines |
Apr. 15, 2008 |
| 7348846 |
Amplifier arrangement |
Mar. 25, 2008 |
| 7348847 |
Integrated implementation of a collector boost scheme and method therefor |
Mar. 25, 2008 |
| 7345545 |
Enhancement mode transceiver and switched gain amplifier integrated circuit |
Mar. 18, 2008 |
| 7180369 |
Baseband filter start-up circuit |
Feb. 20, 2007 |
| 7136058 |
Display apparatus, digital-to-analog conversion circuit and digital-to-analog conversion method |
Nov. 14, 2006 |
| 7129779 |
Semiconductor device with floating block |
Oct. 31, 2006 |
| 7058823 |
Integrated circuit having programmable voltage level line drivers and method of operation |
Jun. 6, 2006 |
| 7030703 |
Circuit arrangement comprising cascade field effect transistors |
Apr. 18, 2006 |
| 6970152 |
Stacked amplifier arrangement for graphics displays |
Nov. 29, 2005 |
| 6967530 |
Circuit and semiconductor device for reducing the generation of shock noise of a power amplifier outputting amplified audio signals |
Nov. 22, 2005 |
| 6933787 |
Linearized darlington amplifier |
Aug. 23, 2005 |
| 6870696 |
CMOS low-noise MR read head pre-amplifier circuit |
Mar. 22, 2005 |
| 6861909 |
High voltage-wide band amplifier |
Mar. 1, 2005 |
| 6838943 |
Input follower system and method |
Jan. 4, 2005 |
| 6832077 |
Microwave isolator |
Dec. 14, 2004 |
| 6765441 |
Differential amplifier |
Jul. 20, 2004 |
| 6670847 |
Inductive amplifier with a feed forward boost |
Dec. 30, 2003 |
| 6670674 |
Transistor and power amplifier with improved bandwidth |
Dec. 30, 2003 |
| 6580316 |
Power transistor module, power amplifier and methods in the fabrication thereof |
Jun. 17, 2003 |
| 6577654 |
Optical signal power monitor and regulator |
Jun. 10, 2003 |
| 6473009 |
PWM power amplifier |
Oct. 29, 2002 |
| 6347104 |
Optical signal power monitor and regulator |
Feb. 12, 2002 |
| 6268632 |
Field effect transistor and power amplifier including the same |
Jul. 31, 2001 |
| 6119148 |
Computer video signal distributor between a computer and a plurality of monitors |
Sep. 12, 2000 |
| 5929759 |
Proximity detector with rapid reception amplification |
Jul. 27, 1999 |
| 5729175 |
Method of driving a class D audio power amplifier using non-overlapping edge drive signals |
Mar. 17, 1998 |
| 5572074 |
Compact photosensor circuit having automatic intensity range control |
Nov. 5, 1996 |
| 5519247 |
Detector circuit with a semiconductor diode operating as a detector and with an amplifier circuit integrated with the diode |
May. 21, 1996 |
| 5434544 |
Oscillator |
Jul. 18, 1995 |
| 5301305 |
Apparatus for amplifying signals in ping-pong arrangement to reduce the frequency of amplification |
Apr. 5, 1994 |
| 4952017 |
Polarization independent semiconductor optical amplifier |
Aug. 28, 1990 |
| 4928069 |
Amplifying surface wave receiver |
May. 22, 1990 |
| 4847565 |
Solid state electromagnetic wave amplifier |
Jul. 11, 1989 |
| 4585999 |
Radiofrequency amplifier based on a dc superconducting quantum interference device |
Apr. 29, 1986 |
| 4173755 |
Battery-operated body capacitance intrusion alarm apparatus |
Nov. 6, 1979 |
| 4058760 |
Reference potential generators |
Nov. 15, 1977 |
| 3946336 |
Microwave solid state circuit employing a bipolar transistor structure |
Mar. 23, 1976 |
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