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Class Information
Number: 455/189.1
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Signal selection based on frequency (e.g., tuning) > Band selection > With plural separate mixer or converter circuits
Description: Subject matter including two or more separate and distinct means for generating an output signal equal to the sum or difference of a local oscillator frequency and the carrier wave frequency or means for converting the carrier wave frequency to some other frequency by combining it with another frequency.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7606551 |
Mixer circuit with balanced frequency mixer with varactor diodes |
Oct. 20, 2009 |
| 7587224 |
Reconfigurable topology for receiver front ends |
Sep. 8, 2009 |
| 7561860 |
Receiver |
Jul. 14, 2009 |
| 7548737 |
System and apparatus for a direct conversion receiver and transmitter |
Jun. 16, 2009 |
| 7536163 |
Apparatus and method generating multi RF tone signals in UWB communication system |
May. 19, 2009 |
| 7536160 |
Wideband phase shift device |
May. 19, 2009 |
| 7529533 |
Configurable homodyne/heterodyne radio receiver and RFID reader employing same |
May. 5, 2009 |
| 7522875 |
Signal selector and combiner system for broadband content distribution |
Apr. 21, 2009 |
| 7489916 |
Direct down-conversion mixer architecture |
Feb. 10, 2009 |
| 7486338 |
Fully integrated terrestrial TV tuner architecture |
Feb. 3, 2009 |
| 7477918 |
Radio frequency receiver and radio frequency transmitter |
Jan. 13, 2009 |
| 7450185 |
Fully integrated tuner circuit architecture for a television system |
Nov. 11, 2008 |
| 7447493 |
Tuner suitable for integration and method for tuning a radio frequency signal |
Nov. 4, 2008 |
| 7436308 |
Adjusting RFID waveform shape in view of signal from another reader |
Oct. 14, 2008 |
| 7414676 |
Integrated programmable tuner |
Aug. 19, 2008 |
| 7403761 |
System and method for frequency translation using an image reject mixer |
Jul. 22, 2008 |
| 7394874 |
Up/down conversion circuitry for radio transceiver |
Jul. 1, 2008 |
| 7392026 |
Multi-band mixer and quadrature signal generator for a multi-mode radio receiver |
Jun. 24, 2008 |
| 7379727 |
RF front-end receiver |
May. 27, 2008 |
| 7376403 |
Terahertz radiation mixer |
May. 20, 2008 |
| 7369837 |
Frequency-mixing method and frequency-mixing device using the same |
May. 6, 2008 |
| 7340233 |
Integrated circuit and methods for third sub harmonic up conversion and down conversion of signals |
Mar. 4, 2008 |
| 7327406 |
Methods and apparatus for implementing a receiver on a monolithic integrated circuit |
Feb. 5, 2008 |
| 7324793 |
Wireless transmission device capable of transmitting media from multiple channels |
Jan. 29, 2008 |
| 7308230 |
Device and method to locally fill gaps in spotbeam satellite systems with frequency re-use |
Dec. 11, 2007 |
| 7305217 |
Low cost planar double balanced mixer |
Dec. 4, 2007 |
| 7269424 |
Mobile terminal implementing a ranging signal receiver and method |
Sep. 11, 2007 |
| 7266352 |
Multiple band RF transmitters and receivers having independently variable RF and IF local oscillators and independent high-side and low-side RF local oscillators |
Sep. 4, 2007 |
| 7262815 |
Harmonic mixer based television tuner and method of processing a received RF signal |
Aug. 28, 2007 |
| 7236756 |
Tuning signal generator and method thereof |
Jun. 26, 2007 |
| 7194044 |
Up/down conversion circuitry for radio transceiver |
Mar. 20, 2007 |
| 7184724 |
System and method for frequency translation using an image reject mixer |
Feb. 27, 2007 |
| 7181186 |
Mixer and frequency conversion apparatus for improving phase-mismatching |
Feb. 20, 2007 |
| 7171184 |
Method and apparatus for a gain controlled mixer |
Jan. 30, 2007 |
| 7164905 |
High frequency module |
Jan. 16, 2007 |
| 7142808 |
Satellite broadcast receiver apparatus intended to reduce power consumption |
Nov. 28, 2006 |
| 7142809 |
Device and method to locally fill gaps in spotbeam satellite systems with frequency re-use |
Nov. 28, 2006 |
| 7139329 |
Receiver in a radio communication system |
Nov. 21, 2006 |
| 7095989 |
Frequency translating devices and frequency translating measurement systems with DC bias added to a mixer diode |
Aug. 22, 2006 |
| 7091828 |
Interrogators, methods of operating a coherent interrogator, backscatter communication methods, interrogation methods, and signal processing methods |
Aug. 15, 2006 |
| 7092687 |
Five-port topology for direct down-conversion |
Aug. 15, 2006 |
| 7088979 |
Triple conversion RF tuner with synchronous local oscillators |
Aug. 8, 2006 |
| 7075585 |
Broadband receiver having a multistandard channel filter |
Jul. 11, 2006 |
| 7072649 |
Multiple purpose antenna system |
Jul. 4, 2006 |
| 7046960 |
Relay apparatus |
May. 16, 2006 |
| 7023948 |
Frequency converter arrangement |
Apr. 4, 2006 |
| 7016662 |
Method and apparatus for up-conversion of radio frequency (RF) signals |
Mar. 21, 2006 |
| 6909470 |
Digital broadcast recorder |
Jun. 21, 2005 |
| 6847808 |
Ultra-high linearity RF passive mixer |
Jan. 25, 2005 |
| 6842610 |
Tuner |
Jan. 11, 2005 |
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