| Patents for H03C 1 - Amplitude modulation (2,214) |
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| 02/05/2013 | US8369417 Optimal denoising for video coding |
| 02/05/2013 | US8368604 Apparatus and method for measuring radiated power of terminal |
| 01/22/2013 | US8358984 Updating channel estimates |
| 01/10/2013 | WO2012134109A3 Transmitter and receiver for an am*type power line communication |
| 01/08/2013 | US8351879 Safe area voltage and current interface |
| 01/08/2013 | US8351874 System and method for adaptive antenna impedance matching |
| 01/01/2013 | US8346191 Wireless measurement transmitter with replaceable module |
| 01/01/2013 | US8346187 Transmission circuit and communication device |
| 01/01/2013 | US8346185 Method and system for enhancing efficiency by modulating power amplifier gain |
| 01/01/2013 | US8344818 Single side band (SSB) mixer |
| 12/26/2012 | EP2537248A1 Phase accumulator generating reference phase for phase coherent direct digital synthesis outputs |
| 12/25/2012 | US8340618 Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships |
| 12/11/2012 | US8330323 Thermal-mechanical signal processing |
| 12/05/2012 | CN101635786B Digital broadcasting transmission/reception system and signal processing method thereof |
| 12/04/2012 | US8326340 Transmit power controller |
| 12/04/2012 | US8326240 System for specific emitter identification |
| 11/27/2012 | US8320850 Power control loop using a tunable antenna matching circuit |
| 11/27/2012 | US8319569 Quadrature amplitude modulator and quadrature amplitude modulation method |
| 11/21/2012 | CN1497778B Amplitude-modulation antenna of noise reduced |
| 11/20/2012 | US8315314 Method and apparatus for transmitting data |
| 11/13/2012 | US8311495 Incident and reflected signal phase difference detection |
| 11/13/2012 | US8311494 Test unit for testing the frequency characteristic of a transmitter |
| 11/07/2012 | CN1989708B A transmit system, transmit method and transmitter |
| 11/06/2012 | US8306485 Device and a method for controlling and monitoring the power of the signal from a radiocommunications terminal |
| 10/30/2012 | US8301086 Low-power polar transmitter |
| 10/30/2012 | US8300730 Multiplier-less data processing techniques and related implementations adapted for use in polar modulator |
| 10/23/2012 | US8295826 System for monitoring the quality of service in a communication network |
| 10/23/2012 | US8295790 Apparatus and method for pre-distorting and amplifying a signal |
| 10/16/2012 | US8290450 Methods and systems for calibrating for gain and phase imbalance and local oscillator feed-through |
| 10/11/2012 | US20120258675 Antenna Tuner in Combination with Modified Feedback Receiver for Improved Antenna Matching |
| 10/11/2012 | DE102011006872A1 Sendeeinrichtung zur Ansteuerung einer Hochfrequenzantenne einer Magnetresonanzeinrichtung, Leistungsverstärkereinheit und Verfahren zur Erzeugung eines amplitudenmodulierten Zielsignals Transmission means for driving a high-frequency antenna of a magnetic resonance device, power amplifier unit and method for generating an amplitude-modulated target signal |
| 10/09/2012 | US8285220 Method and apparatus for reducing a channel deviation in a mobile communication terminal |
| 10/04/2012 | WO2012134109A2 Transmitter and receiver for an am*type power line communication |
| 09/18/2012 | US8269572 Reducing the distortion of applied modulation |
| 09/18/2012 | US8269571 Amplitude modulated pulse transmitter |
| 09/04/2012 | US8260222 Negative amplitude polar transmitter |
| 09/04/2012 | US8260219 Network communication device and method for detecting abnormal load |
| 09/04/2012 | CA2575789C A transmit system employing an antenna and balanced amplifier architecture which provides power amplifier load balancing independent of single or dual signal operation of the transmitter |
| 08/30/2012 | US20120220254 Methods and systems for down-converting a signal using a complementary transistor structure |
| 08/28/2012 | US8254850 Communication module component assemblies |
| 08/28/2012 | US8254706 E8-VSB reception system, apparatus for generating data attribute and method thereof, and apparatus for channel encoding and method thereof |
| 08/28/2012 | US8253508 Modulator driver circuit having chirped components |
| 08/21/2012 | CA2519366C Quadrature modulator which employs four 90-degrees-shifted carriers |
| 08/15/2012 | EP2171838B1 Method and device for producing an amplitude-modulated signal |
| 08/14/2012 | US8242857 Single side band mixer and local oscillator having the same |
| 08/08/2012 | CN101682294B Apparatus and method for generating signals encoded using amplitude shift keying |
| 08/07/2012 | US8238844 Radio transmitter and radio receiver with channel condition assessment |
| 08/07/2012 | US8237550 Action using switched device that transmits data |
| 07/31/2012 | US8233855 Up-conversion based on gated information signal |
| 07/31/2012 | US8233854 Polar modulator and method for generating a polar-modulated signal |
| 07/31/2012 | US8233853 Transmission circuit for radio frequency signals and method for transmitting radio frequency signals |
| 07/31/2012 | US8233852 Calibration techniques for non-linear devices |
| 07/25/2012 | EP2479887A1 Electro-mechanical radio frequency signal generator and method of operating an electro-mechanical radio frequency signal generator |
| 07/25/2012 | CN202353514U Simple amplitude modulation device |
| 07/24/2012 | US8228968 Method and apparatus for generating RF waveforms having aggregate energy with desired spectral characteristics |
| 07/19/2012 | DE102012100145A1 Detektorschaltung, transponder und verfahren zum detektieren von signalamplituden Detector circuit transponder and method for detecting signal amplitudes |
| 07/18/2012 | EP2235559B1 Monostatic multibeam radar sensor device for motor vehicle |
| 07/18/2012 | CN102594261A Configurable system for cancellation of the mean value of a modulated signal |
| 07/17/2012 | US8224264 RF amplifier modulation circuit and related techniques |
| 07/12/2012 | DE102004040278B4 Polarmodulator für den Mobilfunk und Verfahren zur Polarmodulation eines Signals Polar modulator for mobile and methods for polar modulation of a signal |
| 07/10/2012 | US8219106 Reverse link load control |
| 07/10/2012 | US8219045 Method and system for controlling transmitter power using variable feedback transmitter parameters |
| 07/05/2012 | US20120171971 Low noise rf driver |
| 07/04/2012 | CN202309617U 一种三相正弦波发生电路 A three-phase sine wave generator circuit |
| 07/03/2012 | US8213885 Impedance measurement in an active radio frequency transmitter |
| 06/27/2012 | CN1838525B Modulator |
| 06/26/2012 | US8208501 Method of processing traffic information and digital broadcast system |
| 06/26/2012 | US8208391 Method and apparatus for operating a node within a mobile ad hoc cognitive radio network |
| 06/19/2012 | US8204457 Mobile transmitter and transmitting method thereof |
| 06/19/2012 | CA2604480C A digital amplitude modulation transmitter with pulse width modulating rf drive |
| 06/13/2012 | CN202276317U 用于扩声系统的同步信号接收装置 Synchronizing signal receiving device for sound system |
| 06/12/2012 | US8200171 Square wave testing of two-point polar amplifiers |
| 06/06/2012 | CN101414824B All-digital phase-locked loop |
| 06/05/2012 | US8193871 FM pulse shaping |
| 05/29/2012 | US8190116 Methods and systems for down-converting a signal using a complementary transistor structure |
| 05/29/2012 | US8190107 Measurement systems with envelope pre-detection |
| 05/29/2012 | US8190106 Base station control apparatus and base station control method |
| 05/24/2012 | US20120126899 Power Amplifier with Stabilising Network |
| 05/15/2012 | US8179783 System and method of modulation and coding scheme adjustment for a LTE shared data channel |
| 05/08/2012 | US8175193 Apparatus for recovering carrier wave in digital broadcasting receiver and method therefor |
| 05/08/2012 | US8174310 Quadrature modulation demodulation circuit |
| 05/03/2012 | WO2012058122A1 Method, system, and apparatus for rf and dc switching |
| 05/03/2012 | US20120106677 Digital broadcasting system and method of processing data in digital broadcasting system |
| 05/03/2012 | US20120106403 Transmission circuit |
| 05/03/2012 | US20120105111 Transmitter including polar modulation circuit |
| 05/01/2012 | US8170509 Incident and reflected signal phase difference detection |
| 05/01/2012 | US8170505 Driver amplifier having a programmable output impedance adjustment circuit |
| 04/25/2012 | CN1855695B 模拟乘法器 Analog Multiplier |
| 04/25/2012 | CN102427329A Simple amplitude modulation device |
| 04/19/2012 | US20120094712 Amplitude modulator |
| 04/17/2012 | US8160515 Negative amplitude polar transmitter |
| 04/17/2012 | US8159309 Windowing to narrow a bandwidth of an amplitude modulation power supply input signal |
| 04/11/2012 | EP1378055B1 Power oscillator for control of waveshape and amplitude |
| 04/10/2012 | US8154357 Modulation for amplitude-modulating a signal |
| 04/03/2012 | US8150337 Wireless communication device, communication state notification method, wireless communication system and program |
| 03/28/2012 | EP2433358A1 Apparatus for reducing degradation in performance caused by coupling |
| 03/28/2012 | CN102395982A Method and circuit for amplitude modulation of a carrier signal with a specified modulation factor |
| 03/28/2012 | CN101015119B System and method for current-mode amplitude modulation |
| 03/27/2012 | US8145154 Approximation method for signal-to-noise ratio soft information for a communications system |
| 03/27/2012 | US8145153 Method and system for calibrating an analogue I/Q-modulator of a transmitter |