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Class Information
Number: 455/325
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Frequency modifying or conversion > Particular frequency conversion structure or circuitry > Including distributed electrical parameter structure
Description: Systems comprising frequency conversion means including significant structural elements of such dimensions that their distributed constants (e.g., inductance, capacitance, resistance, or conductance) must be taken into account.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| RE40900 |
Amplifier circuit |
Sep. 1, 2009 |
| 7579912 |
Method and system for multiple tuner application using a low noise broadband distribution amplifier |
Aug. 25, 2009 |
| 7558548 |
Method and apparatus for receiving and/or down converting high frequency signals in multi mode/ multi band applications, using mixer and sampler |
Jul. 7, 2009 |
| 7512394 |
Wideband up-conversion mixer |
Mar. 31, 2009 |
| 7509112 |
Wideband image rejection mixer |
Mar. 24, 2009 |
| 7283835 |
Method of providing extended group call service |
Oct. 16, 2007 |
| 7155197 |
High-frequency module and communication apparatus |
Dec. 26, 2006 |
| 7095989 |
Frequency translating devices and frequency translating measurement systems with DC bias added to a mixer diode |
Aug. 22, 2006 |
| 7013122 |
Ultra high isolation mixer |
Mar. 14, 2006 |
| 6799028 |
Mobile radio receiver with integrated broadcast receiver that fills broadcast gaps during mobile band communication |
Sep. 28, 2004 |
| 6799027 |
Amplifier circuit |
Sep. 28, 2004 |
| 6766157 |
Reducing LO leakage in a direct conversion receiver quadrature stage |
Jul. 20, 2004 |
| 6650178 |
N-port direct receiver |
Nov. 18, 2003 |
| 6591093 |
Circuit and method for frequency translation |
Jul. 8, 2003 |
| 6539215 |
Down converter and demodulator using a three port junction |
Mar. 25, 2003 |
| 6510314 |
Mixer circuit with output stage for implementation on integrated circuit |
Jan. 21, 2003 |
| 6389274 |
Subharmonic frequency converter for applications to millimetric radio waves |
May. 14, 2002 |
| 6208214 |
Multifunction high frequency integrated circuit structure |
Mar. 27, 2001 |
| 6205324 |
Broadband double-balanced frequency mixer |
Mar. 20, 2001 |
| 6198912 |
Frequency converter for the application on millimetric radio waves |
Mar. 6, 2001 |
| 6160425 |
Frequency converter |
Dec. 12, 2000 |
| 6133795 |
Oscillator circuit |
Oct. 17, 2000 |
| 6094349 |
Electrical device having a printed-circuit board and method for assembling the device |
Jul. 25, 2000 |
| 6074839 |
Transforming growth factor .alpha.HI |
Jun. 13, 2000 |
| 6011966 |
Mixer input circuit with Imbalance-balance circuit having distributed constant line |
Jan. 4, 2000 |
| 6011146 |
Altered major histocompatibility complex (MHC) determinant and methods of using the determinant |
Jan. 4, 2000 |
| 5949297 |
Balanced modulator |
Sep. 7, 1999 |
| 5872485 |
Dielectric line waveguide which forms electronic circuits |
Feb. 16, 1999 |
| 5790945 |
Resonator for coupling intermediate frequency signals from a radio frequency mixer |
Aug. 4, 1998 |
| 5754951 |
Microwave mixing circuit and a down converter comprising it |
May. 19, 1998 |
| 5732343 |
Microwave harmonic mixer circuit of super conducting quantum interference device |
Mar. 24, 1998 |
| 5678226 |
Unbalanced FET mixer |
Oct. 14, 1997 |
| 5606737 |
Oscillator mixer and a multiplier mixer for outputting a baseband signal based upon an input and output signal |
Feb. 25, 1997 |
| 5587690 |
Ring resonator oscillator usable in frequency synthesizers and communication apparatus |
Dec. 24, 1996 |
| 5584064 |
Converter circuit for satellite broadcasting receivers having mixer isolation |
Dec. 10, 1996 |
| 5574409 |
Apparatus and method for adjusting microwave BPSK modulator and mixer |
Nov. 12, 1996 |
| 5517687 |
Subharmonic image rejection and image enhancement mixer |
May. 14, 1996 |
| 5504465 |
Microwave modulator having adjustable couplers |
Apr. 2, 1996 |
| 5493719 |
Integrated superconductive heterodyne receiver |
Feb. 20, 1996 |
| 5465419 |
Arrangement for frequency conversion of an input signal with an oscillator signal to form an intermediate frequency signal |
Nov. 7, 1995 |
| 5416449 |
Modulator with harmonic mixers |
May. 16, 1995 |
| 5345194 |
FET having two gate bonding pads for use in high frequency oscillator |
Sep. 6, 1994 |
| 5266963 |
Integrated antenna/mixer for the microwave and millimetric wavebands |
Nov. 30, 1993 |
| 5263198 |
Resonant loop resistive FET mixer |
Nov. 16, 1993 |
| 5146182 |
Microwave device |
Sep. 8, 1992 |
| H1081 |
Monolithic millimeter-wave image guide balanced mixer |
Jul. 7, 1992 |
| 5106826 |
System for transmitting and/or receiving electromagnetic radiation employing resonant cavity including high T.sub.c superconducting material |
Apr. 21, 1992 |
| 5020149 |
Integrated down converter and interdigital filter apparatus and method for construction thereof |
May. 28, 1991 |
| 5008956 |
Interdigital local oscillator filter apparatus |
Apr. 16, 1991 |
| 5006811 |
Dual quadrature frequency converter |
Apr. 9, 1991 |
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