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Class Information
Number: 327/357
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Specific input to output function > Combining of plural signals > Product > Quadrant
Description: Subject matter wherein the output signal represents an analog multiplication performed on input signals having positive or negative polarities.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7532055 |
CMOS-based receiver for communications applications |
May. 12, 2009 |
| 7511557 |
Quadrature mixer circuit and RF communication semiconductor integrated circuit |
Mar. 31, 2009 |
| 7496342 |
Down-converting electromagnetic signals, including controlled discharge of capacitors |
Feb. 24, 2009 |
| 7457346 |
Spread-spectrum signal generator |
Nov. 25, 2008 |
| 7446590 |
Low noise mixer with reduced distortion |
Nov. 4, 2008 |
| 7400184 |
Current mode multiplier based on square root voltage-current relationship of MOS transistor |
Jul. 15, 2008 |
| 7375577 |
Mixer capable of detecting or controlling common mode voltage thereof |
May. 20, 2008 |
| 7315192 |
CMOS-based receiver for communications applications |
Jan. 1, 2008 |
| 7298194 |
Interpolation |
Nov. 20, 2007 |
| 7245164 |
Radio frequency doubler |
Jul. 17, 2007 |
| 7088982 |
Gilbert cell and method thereof |
Aug. 8, 2006 |
| 7078969 |
Analog signal interpolation |
Jul. 18, 2006 |
| 7061300 |
Low supply voltage analog multiplier |
Jun. 13, 2006 |
| 6982578 |
Digital delay-locked loop circuits with hierarchical delay adjustment |
Jan. 3, 2006 |
| 6972610 |
High linearity passive mixer and associated LO buffer |
Dec. 6, 2005 |
| 6946894 |
Current-mode synapse multiplier circuit |
Sep. 20, 2005 |
| 6940352 |
Analog signal interpolation |
Sep. 6, 2005 |
| 6940920 |
Multiplier arrangement, signal modulator and transmitter |
Sep. 6, 2005 |
| 6859085 |
Mixer circuit and differential amplifier circuit |
Feb. 22, 2005 |
| 6812763 |
Automatic wideband quadrature frequency generator |
Nov. 2, 2004 |
| 6771707 |
Digital television receiver converting vestigial-sideband signals to double-sideband AM signals before demodulation |
Aug. 3, 2004 |
| 6563365 |
Low-noise four-quadrant multiplier method and apparatus |
May. 13, 2003 |
| 6545516 |
Frequency conversion |
Apr. 8, 2003 |
| 6433647 |
Low noise I-Q mixer |
Aug. 13, 2002 |
| 6342804 |
Low-noise mixer |
Jan. 29, 2002 |
| 6275686 |
Differential phase shift amplifier of electrical or physical quantities |
Aug. 14, 2001 |
| 6242965 |
Phase synchronization |
Jun. 5, 2001 |
| 6230001 |
Active commutated double balanced mixer |
May. 8, 2001 |
| 6218881 |
Semiconductor integrated circuit device |
Apr. 17, 2001 |
| 6218885 |
Circuit and method for providing temperature stability in an FM quadrature detector |
Apr. 17, 2001 |
| 6208192 |
Four-quadrant multiplier for operation of MOSFET devices in saturation region |
Mar. 27, 2001 |
| 6198333 |
Analog multiplier with thermally compensated gain |
Mar. 6, 2001 |
| 6184739 |
Advanced near ideal mixer |
Feb. 6, 2001 |
| 6084460 |
Four quadrant multiplying circuit driveable at low power supply voltage |
Jul. 4, 2000 |
| 6057714 |
Double balance differential active ring mixer with current shared active input balun |
May. 2, 2000 |
| 6054889 |
Mixer with improved linear range |
Apr. 25, 2000 |
| 6043700 |
Analog multiplier with thermally compensated gain |
Mar. 28, 2000 |
| 6011422 |
Integrated differential voltage amplifier with programmable gain and input offset voltage |
Jan. 4, 2000 |
| 5966040 |
CMOS current-mode four-quadrant analog multiplier |
Oct. 12, 1999 |
| 5959491 |
Apparatus and method for noise suppression in a balanced modulating device |
Sep. 28, 1999 |
| 5925094 |
Analog multiplier using triple-tail cell |
Jul. 20, 1999 |
| 5926408 |
Bipolar multiplier with wide input voltage range using multitail cell |
Jul. 20, 1999 |
| 5920810 |
Multiplier and method for mixing signals |
Jul. 6, 1999 |
| 5912834 |
Bipolar translinear four-quadrant analog multiplier |
Jun. 15, 1999 |
| 5909136 |
Quarter-square multiplier based on the dynamic bias current technique |
Jun. 1, 1999 |
| 5889425 |
Analog multiplier using quadritail circuits |
Mar. 30, 1999 |
| 5886560 |
Analog multiplier operable on a low supply voltage |
Mar. 23, 1999 |
| 5805007 |
Low-power, low-voltage four-quadrant analog multiplier, particularly for neural applications |
Sep. 8, 1998 |
| 5774010 |
MOS four-quadrant multiplier including the voltage-controlled-three-transistor V-I converters |
Jun. 30, 1998 |
| 5656964 |
CMOS low-voltage four-quadrant multiplier |
Aug. 12, 1997 |
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