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Class Information
Number: 455/315
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Frequency modifying or conversion > Plural separate successive conversions > With plural separate local oscillators
Description: Subject matter including separate local oscillator means combined with at least two or more of the plural separate conversion means.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7610033 |
Radio frequency tuner |
Oct. 27, 2009 |
| 7606550 |
Method and system for a dual mode receiver with low intermediate frequency (IF) and zero second IF |
Oct. 20, 2009 |
| 7587224 |
Reconfigurable topology for receiver front ends |
Sep. 8, 2009 |
| 7567786 |
High-dynamic-range ultra wide band transceiver |
Jul. 28, 2009 |
| 7538621 |
Broadband integrated tuner |
May. 26, 2009 |
| 7509104 |
Method and apparatus for tuning radio frequency |
Mar. 24, 2009 |
| 7489916 |
Direct down-conversion mixer architecture |
Feb. 10, 2009 |
| 7483498 |
Frequency content separation using complex frequency shifting converters |
Jan. 27, 2009 |
| 7421259 |
RF mixer with high local oscillator linearity using multiple local oscillator phases |
Sep. 2, 2008 |
| 7403751 |
DC offset calibration system |
Jul. 22, 2008 |
| 7398073 |
Low noise mixer |
Jul. 8, 2008 |
| 7386291 |
Integrated millimeter-wave quadrature generator |
Jun. 10, 2008 |
| 7366486 |
System and method for coarse/fine PLL adjustment |
Apr. 29, 2008 |
| 7366485 |
Multimode wireless transmitter and a portable wireless device using the same |
Apr. 29, 2008 |
| 7324797 |
Bragg-cell application to high probability of intercept receiver |
Jan. 29, 2008 |
| 7277683 |
Regenerative divider for up and down conversion of radio frequency (RF) signals |
Oct. 2, 2007 |
| 7268640 |
Frequency generator arrangement |
Sep. 11, 2007 |
| 7269401 |
Signal processing circuit for tuner which applies signal processing based on variation in frequency of intermediate frequency signal |
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 |
| 7245872 |
Satellite broadcasting converter, control circuit incorporated therein, and detector circuit used in such control circuit |
Jul. 17, 2007 |
| 7228119 |
Apparatus and method for a radio frequency (RF) receiver front end pre-selector tuning for improving the reduction in intermodulation distortion (IMD) |
Jun. 5, 2007 |
| 7177618 |
Low noise block down converter with a plurality of local oscillators |
Feb. 13, 2007 |
| 7164896 |
Method for driving a receiver stage and respective apparatus |
Jan. 16, 2007 |
| 7155194 |
Mixer used in direct conversion transceiver and related method |
Dec. 26, 2006 |
| 7139545 |
Ultra-wideband fully synthesized high-resolution receiver and method |
Nov. 21, 2006 |
| 7136618 |
Satellite broadcast receiving converter with lower power consumption |
Nov. 14, 2006 |
| 7127227 |
Digital down-converter |
Oct. 24, 2006 |
| 7113760 |
Direct conversion receiver for amplitude modulated signals using linear/log filtering |
Sep. 26, 2006 |
| 7103343 |
Receiver, in particular for mobile radio |
Sep. 5, 2006 |
| 7095866 |
Wireless 900 MHz broadcast link |
Aug. 22, 2006 |
| 7072633 |
Double-conversion television tuner using a Delta-Sigma Fractional-N PLL |
Jul. 4, 2006 |
| 7046980 |
Method and apparatus for up-and down-conversion of radio frequency (RF) signals |
May. 16, 2006 |
| 7039383 |
Quadrature mixer circuit including three-input local mixers |
May. 2, 2006 |
| 7035614 |
System and method for discovering frequency related spurs in a multi-conversion tuner |
Apr. 25, 2006 |
| 6973297 |
Method and apparatus for down-conversion of radio frequency (RF) signals with reduced local oscillator leakage |
Dec. 6, 2005 |
| 6968278 |
Reducing the occurrence of spurs when analyzing signals |
Nov. 22, 2005 |
| 6950644 |
Satellite broadcast receiving device having two local oscillation circuits and reduced spurious signal |
Sep. 27, 2005 |
| 6947499 |
Angle demodulation apparatus, local oscillation apparatus, angle demodulation method, local oscillation signal generating method, recording medium and computer data signal |
Sep. 20, 2005 |
| 6937670 |
Digital tuner |
Aug. 30, 2005 |
| 6937849 |
Mixing apparatus |
Aug. 30, 2005 |
| 6931241 |
Dual digital low IF complex receiver |
Aug. 16, 2005 |
| 6917787 |
System and method for superheterodyne frequency multiplication signal expansion to achieve a reduced bandwidth frequency or phase modulation communication channel |
Jul. 12, 2005 |
| 6892061 |
Mixer circuit configuration |
May. 10, 2005 |
| 6876842 |
Superheterodyne receivers |
Apr. 5, 2005 |
| 6842610 |
Tuner |
Jan. 11, 2005 |
| 6804261 |
Multi-band receiver having multi-slot capability |
Oct. 12, 2004 |
| 6768902 |
Double frequency converter making possible shifting of the frequencies of first and second local oscillation signals by the same frequency |
Jul. 27, 2004 |
| 6751470 |
Versatile RF front-end multiband mobile terminals |
Jun. 15, 2004 |
| 6731922 |
Optical image reject down converter |
May. 4, 2004 |
| 6718167 |
Filter center frequency temperature compensation by adjustment of the operating frequency of the host system |
Apr. 6, 2004 |
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