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Class Information
Number: 455/126
Name: Telecommunications > Transmitter > With feedback of modulated output signal
Description: Subject matter including provision to apply a portion of the output signal of the transmitter to the input of a prior stage.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620373 |
Apparatus and method for calibration of gain and/or phase imbalance and/or DC offset in a communication system |
Nov. 17, 2009 |
| 7613250 |
Distortion compensation apparatus |
Nov. 3, 2009 |
| 7610028 |
Method and system for reduction of peak-to-average power ratio of transmission signals comprising overlapping waveforms |
Oct. 27, 2009 |
| 7610058 |
Reverse loop protocol |
Oct. 27, 2009 |
| 7603089 |
Methods and apparatus for conditioning low-magnitude events in communications signals |
Oct. 13, 2009 |
| 7599420 |
System and method for distributed input distributed output wireless communications |
Oct. 6, 2009 |
| 7599669 |
Transmitting arrangement, transreceiver with a transmitting arrangement and method for signal processing |
Oct. 6, 2009 |
| 7593699 |
Distortion/efficiency adaptation in a variable-data-rate radio transmitter |
Sep. 22, 2009 |
| 7590190 |
System and method for forward path gain control in a digital predistortion linearized transmitter |
Sep. 15, 2009 |
| 7590395 |
Power management scheme for software-defined radios |
Sep. 15, 2009 |
| 7586995 |
Peak windowing for crest factor reduction |
Sep. 8, 2009 |
| 7580686 |
Adaptive predistortion method and arrangement |
Aug. 25, 2009 |
| 7577211 |
Digital predistortion system and method for linearizing an RF power amplifier with nonlinear gain characteristics and memory effects |
Aug. 18, 2009 |
| 7573410 |
Gain step calibration in a mobile cellular transmitter |
Aug. 11, 2009 |
| 7573948 |
Radio transmitter incorporating digital modulator and circuitry to accommodate baseband processor with analog interface |
Aug. 11, 2009 |
| 7574182 |
Mobile communications terminal having driving voltage control apparatus and method thereof |
Aug. 11, 2009 |
| 7570932 |
Dual mode quadrature radio frequency power amplifier |
Aug. 4, 2009 |
| 7570931 |
RF transmitter with variably biased RF power amplifier and method therefor |
Aug. 4, 2009 |
| 7570710 |
In-phase and quadrature-phase signal amplitude and phase calibration |
Aug. 4, 2009 |
| 7570928 |
System and method for low delay corrective feedback power amplifier control |
Aug. 4, 2009 |
| 7565116 |
High frequency module |
Jul. 21, 2009 |
| 7558541 |
Amplifier gain and phase stabilizer |
Jul. 7, 2009 |
| 7558539 |
Power control feedback loop for adjusting a magnitude of an output signal |
Jul. 7, 2009 |
| 7555276 |
Devices, methods, and computer program products for controlling power transfer to an antenna in a wireless mobile terminal |
Jun. 30, 2009 |
| 7555270 |
Wide dynamic range power detection in a communication system |
Jun. 30, 2009 |
| 7551687 |
Distortion compensating apparatus |
Jun. 23, 2009 |
| 7551905 |
Distortion compensation apparatus |
Jun. 23, 2009 |
| 7548591 |
Quadrature modulator and calibration method |
Jun. 16, 2009 |
| 7546098 |
Control system with selective open-loop operation |
Jun. 9, 2009 |
| 7542738 |
Method and apparatus for measuring and compensating for power amplifier distortion and non-linearity |
Jun. 2, 2009 |
| 7542775 |
Control device and radio control method |
Jun. 2, 2009 |
| 7539466 |
Amplifier with varying supply voltage and input attenuation based upon supply voltage |
May. 26, 2009 |
| 7538632 |
Method and apparatus for controlling adaptive circuits |
May. 26, 2009 |
| 7535311 |
Direct wideband modulation of a frequency synthesizer |
May. 19, 2009 |
| 7536197 |
Apparatus and method of loop and rate dependent power cutback |
May. 19, 2009 |
| 7535299 |
High-frequency amplification circuit |
May. 19, 2009 |
| 7529524 |
Adaptive power amplifier linearization in time division duplex communication systems |
May. 5, 2009 |
| 7529526 |
Apparatus and method for detecting radio frequency transmission power levels |
May. 5, 2009 |
| 7526255 |
Method and system for coordinating radio resources in unlicensed frequency bands |
Apr. 28, 2009 |
| 7526308 |
Adaptive control physical carrier sense parameters in wireless networks |
Apr. 28, 2009 |
| 7522892 |
Power amplifier with serial interface and associated methods |
Apr. 21, 2009 |
| 7522672 |
Digital branch calibrator for an RF transmitter |
Apr. 21, 2009 |
| 7519337 |
Transmitter and mobile communication terminal using the same |
Apr. 14, 2009 |
| 7512387 |
Method and control system for controlling the output power of an RF amplifier system |
Mar. 31, 2009 |
| 7505742 |
Battery life extending technique for mobile wireless applications using bias level control |
Mar. 17, 2009 |
| 7502600 |
Dynamic bias for RF power amplifiers |
Mar. 10, 2009 |
| 7502599 |
Cartesian loop transmitter and method of adjusting an output level of such transmitter |
Mar. 10, 2009 |
| 7502594 |
Power regulation feedback to optimize robustness of wireless transmissions |
Mar. 10, 2009 |
| 7499680 |
Translational loop transmitter architecture employing channel power ratio measurements for modulation accuracy calibration |
Mar. 3, 2009 |
| 7496343 |
Programmable mixer for reducing local oscillator feedthrough and radio applications thereof |
Feb. 24, 2009 |
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