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Class Information
Number: 330/301
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including balanced to unbalanced circuits and vice versa
Description: Subject matter wherein one of the signal input means or signal output means is coupled to or from the semiconductor amplifier by a balanced circuit, the other signal coupling means coupled to or from the semiconductor amplifier unbalanced circuit.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7446613 |
Power amplifier input structure having a differential output |
Nov. 4, 2008 |
| 7437345 |
Image rejection mixer and multiband generator |
Oct. 14, 2008 |
| 7420423 |
Active balun device |
Sep. 2, 2008 |
| 7414480 |
Differential/single-ended input stage |
Aug. 19, 2008 |
| 7375590 |
Single-ended input to differential-ended output low noise amplifier implemented with cascode and cascade topology |
May. 20, 2008 |
| 7368996 |
High frequency power amplifier |
May. 6, 2008 |
| 7368982 |
Balanced output circuit and electronic apparatus utilizing the same |
May. 6, 2008 |
| 7368990 |
Differential amplifier and data driver employing the differential amplifier |
May. 6, 2008 |
| 7365605 |
High voltage, high current, and high accuracy amplifier |
Apr. 29, 2008 |
| 7362182 |
Power amplifier |
Apr. 22, 2008 |
| 7358815 |
Monolithic transformer based amplifier for integrated circuits |
Apr. 15, 2008 |
| 7288994 |
Differential to single-ended converter |
Oct. 30, 2007 |
| 7279982 |
Apparatus and method for low current differential swing I/O interface |
Oct. 9, 2007 |
| 7233201 |
Single-ended pseudo-differential output driver |
Jun. 19, 2007 |
| 7233209 |
Integrated preamplifier circuit for detecting a signal current from a photodiode |
Jun. 19, 2007 |
| 7224231 |
Method for transforming output signals of a low-noise amplifier of a wireless transceiver |
May. 29, 2007 |
| 7205844 |
Low noise and high gain low noise amplifier |
Apr. 17, 2007 |
| 7202746 |
Multiple-stage operational amplifier and methods and systems utilizing the same |
Apr. 10, 2007 |
| 7199665 |
Single to dual non-overlapping converter |
Apr. 3, 2007 |
| 7193475 |
Single-ended input to differential output low noise amplifier with a cascode topology |
Mar. 20, 2007 |
| 7170353 |
Balanced amplifier circuit and high-frequency communication apparatus |
Jan. 30, 2007 |
| 7157965 |
Summing power amplifier |
Jan. 2, 2007 |
| 7142061 |
Balanced single ended to differential signal converter |
Nov. 28, 2006 |
| 7113045 |
Power amplifier input structure having a differential output |
Sep. 26, 2006 |
| 7109802 |
Bipolar differential to single ended transfer circuit with gain boost |
Sep. 19, 2006 |
| 7102443 |
Temperature-stabilized amplifier circuit |
Sep. 5, 2006 |
| 7098742 |
Differential/single-ended input stage |
Aug. 29, 2006 |
| 7091791 |
Transformer implementation using bonding wires |
Aug. 15, 2006 |
| 7088185 |
Antenna diversity structure for use in a radio frequency integrated circuit |
Aug. 8, 2006 |
| 7088184 |
High frequency amplifier in an integrated circuit |
Aug. 8, 2006 |
| 7061329 |
Semiconductor device having balanced circuit for use in high frequency band |
Jun. 13, 2006 |
| 7057458 |
Balanced power amplifier and high-frequency communication apparatus |
Jun. 6, 2006 |
| 7035616 |
Two-stage variable-gain mixer employing shunt feedback |
Apr. 25, 2006 |
| 6982601 |
High isolation/high speed buffer amplifier |
Jan. 3, 2006 |
| 6967515 |
Single-ended to differential conversion circuit with duty cycle correction |
Nov. 22, 2005 |
| 6965266 |
High voltage differential amplifier using low voltage devices |
Nov. 15, 2005 |
| 6937098 |
Translinear amplifier |
Aug. 30, 2005 |
| 6922108 |
Active balun circuit for single-ended to differential RF signal conversion with enhanced common-mode rejection |
Jul. 26, 2005 |
| 6909328 |
Device for converting a differential signal to a single signal |
Jun. 21, 2005 |
| 6900705 |
Balanced high-frequency device and balance-characteristics improving method and balanced high-frequency circuit using the same |
May. 31, 2005 |
| 6895227 |
Transmission output stage for a mobile telephone |
May. 17, 2005 |
| 6885248 |
Single-ended differential circuit using complementary devices |
Apr. 26, 2005 |
| 6882228 |
Radio frequency integrated circuit having an antenna diversity structure |
Apr. 19, 2005 |
| 6873210 |
Single-ended-to-differential converter with common-mode voltage control |
Mar. 29, 2005 |
| 6867653 |
Apparatus and method for converting a fully-differential class-AB input signal to a rail-to-rail single ended output signal |
Mar. 15, 2005 |
| 6819182 |
High isolation/high speed buffer amplifier |
Nov. 16, 2004 |
| 6813486 |
RF circuit |
Nov. 2, 2004 |
| 6809581 |
Integrated circuit low noise amplifier and applications thereof |
Oct. 26, 2004 |
| 6809596 |
DC offset cancellation circuit, system and method |
Oct. 26, 2004 |
| 6803823 |
Circuit, apparatus and method for an adaptive voltage swing limiter |
Oct. 12, 2004 |
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