Patents for H03C 1 - Amplitude modulation (2,214) |
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04/16/2009 | WO2006127606A3 Wireless diagnostic systems |
04/16/2009 | WO2006060156A3 System and method for thermal management in a device |
04/16/2009 | US20090098839 Transmitter and communication apparatus |
04/16/2009 | US20090097581 Method and apparatus for adaptively controlling signals |
04/16/2009 | US20090096546 Modulator for radio-frequency signals |
04/09/2009 | WO2005013410A3 Enhanced holographic communications apparatus and method |
04/09/2009 | US20090091394 Device to generate a modulated electrical radio-frequency signal for a magnetic resonance application |
04/09/2009 | DE102004054761B4 PIN-Dioden-Pulsmodulator PIN diode pulse modulator |
04/07/2009 | US7515884 Method and system for self-calibrating transmit power |
03/31/2009 | US7512386 Method and apparatus providing integrated load matching using adaptive power amplifier compensation |
03/31/2009 | US7512384 Control unit and a control method |
03/24/2009 | US7509100 Antenna interface unit |
03/18/2009 | EP1751853A4 A tuneable circuit for canceling third order modulation |
03/11/2009 | EP1410494B1 System and method for current-mode amplitude modulation |
03/04/2009 | CN101379717A Digital-to-radio frequency conversion device, chip set, transmitter, user terminal and data processing method |
03/04/2009 | CN100466460C Modulator and the correction method thereof |
02/24/2009 | US7496335 Mobile terminal apparatus and channel compensation method of the same |
02/12/2009 | US20090039974 Polar modulation apparatus |
02/11/2009 | EP1338085B1 A direct digital amplitude modulator |
02/04/2009 | CN100459414C RF mixing device |
01/27/2009 | US7482925 Apparatus and method to electromagnetically shield portable consumer devices |
01/22/2009 | WO2009012505A1 Electric fence energiser |
01/22/2009 | US20090023405 RF Front-End Circuitry with Reduced DC Offset |
01/22/2009 | US20090021321 Hybrid linear and polar modulation apparatus |
01/15/2009 | US20090017774 System and Method for Calibrating a Transceiver |
01/14/2009 | EP1757054A4 Single and multiple sinewave modulation and demodulation techniques employing carrier-zero and carrier-peak data-word start and stop |
01/13/2009 | US7477107 Protection circuit and method for RF power amplifiers in WLAN transceivers |
01/07/2009 | EP2012251A1 Method for optimising the transmitting frequency spectrum of an RFID read-write station |
01/07/2009 | EP1935089B1 Systems, methods and devices for dual closed loop modulation controller for nonlinear rf amplifier |
01/07/2009 | CN100449936C Corrective phase quadrature modulator system and method |
01/06/2009 | US7474893 System including a communication apparatus having a digital audio interface for audio testing with radio isolation |
01/06/2009 | US7474876 Device for the production of standard-compliant signals |
01/06/2009 | US7474715 Variable load circuit for reducing quadrature phase error |
01/06/2009 | US7474707 Bandwidth reduction of an FM broadcast signal using a baseband precompensation technique |
01/02/2009 | DE102007028695A1 Verfahren und Vorrichtung zur Erzeugung eines amplituden-modulierten Signals Method and apparatus for generating an amplitude-modulated signal |
01/01/2009 | US20090003487 Reducing amplitude modulated noise for a wireless transceiver |
01/01/2009 | US20090002089 Digital FM Transmitter with Variable Frequency Complex Digital IF |
12/31/2008 | EP1060563A4 Method and apparatus for compensating for delays in modulator loops |
12/30/2008 | US7471739 Advanced adaptive pre-distortion in a radio frequency transmitter |
12/25/2008 | US20080317169 Polar modulator arrangement and polar modulation method |
12/24/2008 | WO2008155121A2 Method and device for producing an amplitude-modulated signal |
12/17/2008 | CN101325398A Modulation circuit |
12/11/2008 | WO2008113749A3 Method for the production of a digitally modulated high-frequency signal |
12/11/2008 | US20080305754 Systems and methods for over-the-air testing of wireless systems |
12/04/2008 | US20080299916 Low noise rf driver |
12/02/2008 | US7460624 Method and system of reducing collisions in an asynchronous communication system |
11/25/2008 | US7457597 Signal detection using probabilistic techniques |
11/25/2008 | US7457593 Attenuator system |
11/13/2008 | WO2008135402A1 Apparatus and method for generating signals encoded using amplitude shift keying |
11/11/2008 | US7450913 Circuit arrangement for a wideband mixer with predistortion and high linearity |
11/06/2008 | US20080272441 Method and circuit for down-converting a signal |
11/06/2008 | DE102007020823A1 Vorrichtung und Verfahren zum Erzeugen von mit Amplitudenumtastung codierten Signalen Apparatus and method for generating coded signals with amplitude shift keying |
10/30/2008 | WO2004036810A3 Method and apparatus for generating rf waveforms having aggregate energy with desired spectral characteristics |
10/29/2008 | CN101297473A Method and device for controlling peak power and pulse width of a broadband gaussian pulse high-power RF transmitter |
10/23/2008 | WO2007117328A3 Pilot signal in an fdma communication system |
10/21/2008 | US7440735 Virtual wireless transmitter |
10/21/2008 | US7440734 Active quadrature radio frequency power detector |
10/14/2008 | US7437130 Smart tuning AM transmitter |
10/09/2008 | US20080246550 Selective envelope modulation enabling reduced current consumption |
10/08/2008 | CN101282106A Electronic circuit, method for modulating, and, apparatus and method for information processing |
10/01/2008 | CN201127033Y AM/ASK modulation module with variable modulation degree and variable output power |
09/30/2008 | US7430251 VSB transmission system for processing supplemental transmission data |
09/25/2008 | WO2008113749A2 Method for the production of a digitally modulated high-frequency signal |
09/25/2008 | US20080233903 Selection of filter coefficients for tranceiver non-linearity signal cancellation |
09/25/2008 | US20080233899 High-frequency circuit device |
09/25/2008 | US20080233898 System and method for a time alignment analog notch |
09/25/2008 | US20080232432 non-coherent transmission method for uplink control signals using a constant amplitude zero-autocorrelation sequence |
09/23/2008 | US7428258 Method and apparatus for generating RF waveforms having aggregate energy with desired spectral characteristics |
09/18/2008 | WO2008112074A2 Osteosynthesis plate, method for customizing same, and method for installing same |
09/09/2008 | US7423995 Criteria for tearing down network links |
09/04/2008 | US20080214125 Method and Apparatus For Dynamically Adjusting a Transmitter's Impedance and Implementing a Hybrid Power Amplifier Therein Which Selectively Connects Linear and Switch-Mode Power Amplifiers in Series |
09/03/2008 | CN101258730A Training signal for choosing aerial and wave beam in MIMO wireless LAN |
09/03/2008 | CN100417014C Modulator clock signal source and re-modulator system |
09/02/2008 | US7421254 High linearity, high efficiency power amplifier with DSP assisted linearity optimization |
09/02/2008 | CA2468079C Corrective phase quadrature modulator system and method |
08/28/2008 | US20080207145 Transmitter |
08/26/2008 | US7418058 Distortion compensating apparatus and method |
08/21/2008 | US20080198947 Inductive Power and Data Transmission System Based on Class D and Amplitude Shift Keying |
08/21/2008 | DE10307292B4 System und Verfahren für die Reifendrucküberwachung das die Erkennung des Orts des Reifens einschließt Including the identification of the location of the tire system and method for tire pressure monitoring |
08/14/2008 | WO2007130874B1 Spread spectrum ask/ook transmitter |
07/31/2008 | US20080182544 Methods and Systems for Down-Converting a Signal Using a Complementary Transistor Structure |
07/24/2008 | WO2005107060A3 Method and system for compensating for phase variations caused by transmitter activation |
07/23/2008 | CN101228754A Method and apparatus for generating M-ary CPM waveforms from a superposition of PAM waveforms |
07/23/2008 | CN100405737C Electronic circuit, modulating method, information processing devcie and information processing method |
07/16/2008 | CN101223450A Low power transmission provisioning for wireless network devices |
07/15/2008 | US7400864 Method and apparatus for compensating for phase variations caused by activation of an amplifier |
07/03/2008 | WO2007130874A3 Spread spectrum ask/ook transmitter |
07/03/2008 | US20080157895 Multi-mode amplitude modulator control method |
07/01/2008 | US7395039 Transmitter |
06/25/2008 | EP1935089A2 Systems, methods and devices for dual closed loop modulation controller for nonlinear rf amplifier |
06/24/2008 | US7392021 Apparatus, system, and method for measuring power delivered to a load |
06/17/2008 | US7389100 Method and circuit for down-converting a signal |
06/12/2008 | US20080139138 Transmission circuit |
06/11/2008 | EP1929752A2 Training signals for selecting antennas and beams in mimo wireless lans |
06/11/2008 | EP1929625A2 Method and device for controlling peak power and pulse width of a broadband gaussian pulse high-power rf transmitter |
06/11/2008 | EP1671441A4 Method for estimating signal magnitude, noise power, and signal-to-noise ratio of received signals |
06/11/2008 | CN101199111A A digital amplitude modulation transmitter with pulse width modulating RF drive |
06/05/2008 | US20080132184 Method and Arrangement For Mutual Information Based Power Control |
06/03/2008 | US7383025 Method for processing RF signals for receiving and transmission |
06/03/2008 | US7382887 Method and device for reducing high frequency error components of a multi-channel modulator |