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Class Information
Number: 327/355
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Specific input to output function > Combining of plural signals
Description: Subject matter wherein the output is a resultant function of mathematically operating on two or more input signals.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7616045 |
Mixer with balanced local oscillator signal |
Nov. 10, 2009 |
| 7605634 |
Subtractor circuit and operational amplifier |
Oct. 20, 2009 |
| 7603098 |
Programmable IF frequency filter for enabling a compromise between DC offset rejection and image rejection |
Oct. 13, 2009 |
| 7602227 |
Differential amplifier circuit and mixer circuit having improved linearity |
Oct. 13, 2009 |
| 7589579 |
Mixer circuit |
Sep. 15, 2009 |
| 7570936 |
Sub-harmonically pumped mixer |
Aug. 4, 2009 |
| 7554381 |
Mixer amplifier and radiofrequency front-end circuit |
Jun. 30, 2009 |
| 7521981 |
Mixer with carrier leakage calibration |
Apr. 21, 2009 |
| 7519130 |
Front end interface for data receiver |
Apr. 14, 2009 |
| 7514981 |
Mixer circuit |
Apr. 7, 2009 |
| 7498861 |
Mixer |
Mar. 3, 2009 |
| 7482852 |
Inductor-less local oscillator buffer |
Jan. 27, 2009 |
| 7457346 |
Spread-spectrum signal generator |
Nov. 25, 2008 |
| 7446590 |
Low noise mixer with reduced distortion |
Nov. 4, 2008 |
| 7417486 |
Voltage-current conversion circuit, amplifier, mixer circuit, and mobile appliance using the circuit |
Aug. 26, 2008 |
| 7342432 |
Mixer circuit having improved linearity and noise figure |
Mar. 11, 2008 |
| 7340233 |
Integrated circuit and methods for third sub harmonic up conversion and down conversion of signals |
Mar. 4, 2008 |
| 7321253 |
Multiplier |
Jan. 22, 2008 |
| 7313034 |
Low supply voltage temperature compensated reference voltage generator and method |
Dec. 25, 2007 |
| 7298194 |
Interpolation |
Nov. 20, 2007 |
| 7282982 |
Mixer-system with gain-blocks and switches |
Oct. 16, 2007 |
| 7282983 |
Secure and fast calculating unit |
Oct. 16, 2007 |
| 7280815 |
Process for control of standby currents in a direct conversion type of frequency transposition device, and corresponding device |
Oct. 9, 2007 |
| 7259630 |
Elimination of peak clipping and improved efficiency for RF power amplifiers with a predistorter |
Aug. 21, 2007 |
| 7259521 |
Video driver architecture for AMOLED displays |
Aug. 21, 2007 |
| 7245164 |
Radio frequency doubler |
Jul. 17, 2007 |
| 7233190 |
Voltage subtracting circuit carrying out voltage subtraction by converting input voltage into current, intensity detecting circuit, and semiconductor integrated circuit device using the same |
Jun. 19, 2007 |
| 7227397 |
System, method and circuits for generating a signal |
Jun. 5, 2007 |
| 7138849 |
Phase mixer that compensates for frequency variations and PVT variations and a control method thereof |
Nov. 21, 2006 |
| 7129761 |
Digital delay-locked loop circuits with hierarchical delay adjustment |
Oct. 31, 2006 |
| 7116588 |
Low supply voltage temperature compensated reference voltage generator and method |
Oct. 3, 2006 |
| 7109773 |
Flexible blender |
Sep. 19, 2006 |
| 7102411 |
High linearity passive mixer and associated LO buffer |
Sep. 5, 2006 |
| 7088168 |
Direct conversion receiver using vertical bipolar junction transistor available in deep n-well CMOS technology |
Aug. 8, 2006 |
| 7085549 |
Dynamic power sharing zero intermediate frequency (ZIF) mixer and method of forming same |
Aug. 1, 2006 |
| 7084676 |
Method and apparatus for fractional RF signal synthesis |
Aug. 1, 2006 |
| 7085749 |
Pulse signal circuit, parallel processing circuit, pattern recognition system, and image input system |
Aug. 1, 2006 |
| 7084693 |
Sub-harmonic mixer |
Aug. 1, 2006 |
| 7076231 |
Receiver apparatus controlling the power consumption according to the reception signal level |
Jul. 11, 2006 |
| 7057440 |
Multiplier-divider circuit for a PFC controller |
Jun. 6, 2006 |
| 7023378 |
Self-calibrating wideband phase continuous synthesizer and associated methods |
Apr. 4, 2006 |
| 6995518 |
System, apparatus, and method for driving light emitting diodes in low voltage circuits |
Feb. 7, 2006 |
| 6992519 |
Method and apparatus providing cancellation of second order intermodulation distortion and enhancement of second order intercept point (IIP2) in common source and common emitter transconductan |
Jan. 31, 2006 |
| 6989705 |
High linearity passive mixer and associated LO buffer |
Jan. 24, 2006 |
| 6982578 |
Digital delay-locked loop circuits with hierarchical delay adjustment |
Jan. 3, 2006 |
| 6982587 |
Equalizing transceiver with reduced parasitic capacitance |
Jan. 3, 2006 |
| 6972610 |
High linearity passive mixer and associated LO buffer |
Dec. 6, 2005 |
| 6946902 |
Filtering variable offset amplifier |
Sep. 20, 2005 |
| 6906560 |
Phase-continuous frequency synthesizer |
Jun. 14, 2005 |
| 6891423 |
Quadrature switching mixer with reduced leakage |
May. 10, 2005 |
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