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Frequency Control



No:4726069
A muiti-mode modulation and demodulation system and method
No:6608590
Alignment of antenna polarization axes
No:6701133
Apparatus for and method of synchronising oscillators within a data communication system
No:6975839
Apparatus, and associated method, for estimating frequency offset using filtered, down-sampled likelihood polynomials
No:3626090
Automatic phase control system for use in suppressed carrier television transmission
No:5095538
Calibrated method and device for narrow band doppler compensation
No:7062228
Cellular communications system using baseband carrier injection and related methods
No:6292664
Channel quality in wireless communications
No:7142819
Circuits and methods for controlling switching noise in switched-mode circuits
No:7010271
Circuits and methods for reducing interference from switched mode circuits
No:7199744
Circuits and methods for reducing interference from switched mode circuits
No:6240276
Compensating for errors in tuning frequency of a global positioning satellite (gps) receiver
No:5170413
Control strategy for reuse system assignments and handoff
No:5943606
Determination of frequency offsets in communication systems
No:1750668
Determining movement and position of moving objects
No:3593256
Doppler correction technique
No:6587670
Dual mode class d amplifiers
No:4618996
Dual pilot phase lock loop for radio frequency transmission
No:4633510
Electronic circuit capable of stably keeping a frequency during presence of a burst
No:6335953
Enhanced frequency agile radio
No:6839547
Enhanced gps receiver utilizing wireless infrastructure
No:5926746
Frequency and other parameter adjustment using training channel
No:5241688
Frequency and time slot synchronizaton using adaptive filtering
No:7046968
Frequency correcting method for cellular phone terminal
No:5519388
Method and apparatus for active temperature compensation in a radiowave transmitter
No:5450617
Method and apparatus for closed loop frequency control in a two-way communication system
No:6154640
Method and apparatus for communication and signal synthesis
No:4001690
Method and apparatus for compensation of doppler effects in satellite communication systems
No:5517491
Method and apparatus for controlling frequency deviation of a portable transceiver
No:5703595
Method and apparatus for erratic doppler frequency shift compensation
No:5115515
Method and apparatus for radio communication with improved automatic frequency control
No:4847872
Method and arrangement for synchronizing a receiver in digital transmission systems
No:6549757
Method and system for assessing, at reception level, the quality of a digital signal, such as a digital audio/video signal
No:5983070
Method and system providing increased antenna functionality in a rf distribution system
No:6014546
Method and system providing rf distribution for fixed wireless local loop service
No:7085573
Method for operating in a 800 mhz trunked radio communications system for channels 0 to 119
No:7171213
Method for operating in a 800 mhz trunked radio communications system for channels 440 to 559
No:7272369
Method for performing a frequency correction of a wireless device
No:7027775
Method of automatic frequency-setting for wireless microphone-receivers
No:6731911
Method of performing automatic frequency control in mobile station in waiting mode
No:4910791
Monitoring and control of data communications
No:5230086
Narrow band communication system
No:5515401
Network control system for controlling relative errors between network nodes
No:4978944
Paging receiver with dynamically programmable channel frequencies
No:3683279
Phase locked loop
No:5541589
Power meter data acquisition and control system
No:5262769
Programmed scanning pager receiver
No:5343499
Quadrature amplitude modulation synchronization method
No:4872205
Radio communication system having autonomously selected transmission frequencies
No:5249305
Radio frequency error detection and correction system

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