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Class Information
Number: 455/258
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Local control of receiver operation > Local oscillator frequency control > Automatic > Utilizing particular local oscillator control
Description: Subject matter including automatic frequency control means broadly included with significantly recited details of one or more particular elements within the control circuit whereby the frequency, control of the oscillator is stabilized or adjusted in response to a deviation from the desired frequency.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620382 |
Frequency converter capable of preventing level of intermediate frequency signal from lowering due to rise in temperature |
Nov. 17, 2009 |
| 7616935 |
Method and apparatus for matching receiver carrier frequency |
Nov. 10, 2009 |
| 7606549 |
Selective channel tuner and tuning method |
Oct. 20, 2009 |
| 7599672 |
Millimeter-wave-band radio communication method in which both a modulated signal and an unmodulated carrier are transmitted to a system with a receiver having plural receiving circuits |
Oct. 6, 2009 |
| 7599676 |
Power consumption reduction techniques for an RF receiver implementing a mixing DAC architecture |
Oct. 6, 2009 |
| 7587189 |
Determination and processing for fractional-N programming values |
Sep. 8, 2009 |
| 7584372 |
Station control method and station using the same |
Sep. 1, 2009 |
| 7583948 |
Time constant automatic adjusting circuit, filter circuit system, and method of automatically adjusting time constant |
Sep. 1, 2009 |
| 7574185 |
Method and apparatus for generating a phase-locked output signal |
Aug. 11, 2009 |
| 7558545 |
Semiconductor device for a tuner and diversity receiver |
Jul. 7, 2009 |
| 7548739 |
Apparatus for receiving radio signal using magnetic oscillator |
Jun. 16, 2009 |
| 7548742 |
Tuner for radio frequency receivers and associated method |
Jun. 16, 2009 |
| 7542445 |
Method and system for maintaining autonomous system clock accuracy for a mobile radio terminal |
Jun. 2, 2009 |
| 7519343 |
Receiver for receiving a data stream having first and second reference entries and method for operating the same |
Apr. 14, 2009 |
| 7512389 |
Active inductors using bipolar silicon transistors |
Mar. 31, 2009 |
| 7508888 |
Method and apparatus for precise open loop tuning of reference frequency within a wireless device |
Mar. 24, 2009 |
| 7509107 |
Method and apparatus for extending the lower frequency operation of a sampler based VNA |
Mar. 24, 2009 |
| 7509108 |
Method and apparatus for automatic frequency correction with a frequency error signal generated by block correlation of baseband samples with a known code sequence |
Mar. 24, 2009 |
| 7505749 |
Method and system for a synthesizer/local oscillator generator (LOGEN) architecture for a quad-band GSM/GPRS radio |
Mar. 17, 2009 |
| 7496331 |
Oscillation device and oscillation method |
Feb. 24, 2009 |
| 7483676 |
Radio communication terminal and radio communication control method |
Jan. 27, 2009 |
| 7471940 |
Ratiometric clock systems for integrated receivers and associated methods |
Dec. 30, 2008 |
| 7457600 |
VCO device |
Nov. 25, 2008 |
| 7447491 |
Multi-tuner integrated circuit architecture utilizing frequency isolated local oscillators and associated method |
Nov. 4, 2008 |
| 7424280 |
Frequency synthesizer and frequency synthesis method |
Sep. 9, 2008 |
| 7391840 |
Phase locked loop circuit, electronic device including a phase locked loop circuit and method for generating a periodic signal |
Jun. 24, 2008 |
| 7386064 |
Communication semiconductor integrated circuit device and a wireless communication system |
Jun. 10, 2008 |
| 7383033 |
Differential and quadrature harmonic VCO and methods therefor |
Jun. 3, 2008 |
| 7379722 |
Frequency allocation using a single VCO |
May. 27, 2008 |
| 7353011 |
Method and apparatus for operating a PLL for synthesizing high-frequency signals for wireless communications |
Apr. 1, 2008 |
| 7312669 |
Oscillation circuit |
Dec. 25, 2007 |
| 7308240 |
Numerical control oscillator, digital frequency converter and radio frequency unit |
Dec. 11, 2007 |
| 7305219 |
Portable radio terminal and AFC control method |
Dec. 4, 2007 |
| 7299024 |
Compensation for frequency adjustment in mobile communication-positioning device with shared oscillator |
Nov. 20, 2007 |
| 7272373 |
Ratiometric clock systems for integrated receivers and associated methods |
Sep. 18, 2007 |
| 7272374 |
Dynamic selection of local oscillator signal injection for image rejection in integrated receivers |
Sep. 18, 2007 |
| 7269402 |
PLL circuit having a multi-band oscillator and compensating oscillation frequency |
Sep. 11, 2007 |
| 7263340 |
PLL circuit having a multi-band oscillator and compensating oscillation frequency |
Aug. 28, 2007 |
| 7263339 |
Tuner comprising a voltage converter |
Aug. 28, 2007 |
| 7263138 |
Q-quenching super-regenerative receiver |
Aug. 28, 2007 |
| 7251467 |
Telecommunications using a tunable oscillator |
Jul. 31, 2007 |
| 7224950 |
Estimating GPS reference frequency drift from PDC-handset VCO-bursts |
May. 29, 2007 |
| 7221917 |
Adjacent channel interference mitigation for FM digital audio broadcasting receivers |
May. 22, 2007 |
| 7218901 |
Automatic frequency control of multiple channels |
May. 15, 2007 |
| 7218359 |
Digital television receiver and method of recovering incoming digital television signal |
May. 15, 2007 |
| 7200379 |
Low-power mode clock management for wireless communication devices |
Apr. 3, 2007 |
| 7190939 |
Time division IQ channel direct conversion receiver and method therefor |
Mar. 13, 2007 |
| 7187917 |
Current interpolation in multi-phase local oscillator for use with harmonic rejection mixer |
Mar. 6, 2007 |
| 7174144 |
Calibration of a phase locked loop |
Feb. 6, 2007 |
| 7171182 |
Frequency synthesizers for supporting voice communication and wireless networking standards |
Jan. 30, 2007 |
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