| Patents for H03C 1 - Amplitude modulation (2,214) |
|---|
| 04/27/2010 | US7706468 Transmitter with forward error correction coding for hybrid AM in-band on-channel digital audio broadcasting systems |
| 04/08/2010 | WO2010038166A2 Direct modulation and demodulation with acoustic wave devices |
| 04/08/2010 | WO2009065621A3 Amplitude modulation controller for polar transmitter using coarse and fine power control |
| 04/08/2010 | US20100086081 Modulation device and demodulation device |
| 04/07/2010 | EP2171838A2 Method and device for producing an amplitude-modulated signal |
| 04/06/2010 | US7693502 Method and system for down-converting an electromagnetic signal, transforms for same, and aperture relationships |
| 04/06/2010 | US7693495 Transmitting arrangement and method for impedance matching |
| 03/30/2010 | US7688914 Distortion compensation in wireless digital communication |
| 03/30/2010 | US7688157 Selective envelope modulation enabling reduced current consumption |
| 03/24/2010 | CN101682294A Apparatus and method for generating signals encoded using amplitude shift keying |
| 03/16/2010 | US7680509 Transmission/reception integrated radio-frequency apparatus |
| 03/09/2010 | US7676269 Treatment of female fertility conditions through modulation of the autonomic nervous system |
| 03/04/2010 | US20100056084 Frequency Conversion Based on Gated Information Signal |
| 03/04/2010 | US20100052806 Modulation for amplitude-modulating a signal |
| 02/24/2010 | CN101656823A Digital broadcast transmission and receiving system and signal processing method thereof |
| 02/23/2010 | US7668257 Transmissions with reduced code rate in 8VSB digital television |
| 02/23/2010 | US7668256 Method and apparatus for the generation and detection of optical differential varied-multilevel phase-shift keying with pulse amplitude modulation (ODVMPSK/PAM) signals |
| 02/18/2010 | US20100040381 Transmission apparatus and optical Transmission apparatus |
| 02/16/2010 | US7664520 Low current direct conversion transmitter architecture |
| 02/10/2010 | EP2151045A1 Apparatus and method for generating signals encoded using amplitude shift keying |
| 02/09/2010 | US7660563 Apparatus and method for calibrating mixer offset |
| 01/28/2010 | WO2009129512A3 System and method of modulating electrical signals using photoconductive wide bandgap semiconductors as variable resistors |
| 01/27/2010 | CN101635786A Digital broadcasting transmission/reception capable of improving receiving performance and signal processing method thereof |
| 01/27/2010 | CN101635785A Digital broadcasting transmission/reception capable of improving receiving performance and signal processing method thereof |
| 01/26/2010 | US7653404 Analyzing technology of radio wave in wireless information communication |
| 01/26/2010 | US7653143 Digital television transmitter and receiver for transmitting and receiving dual stream using 4 level vestigial side band robust data |
| 01/20/2010 | CN100583706C Carrier-modulation method and apparatus with amplitude and phase error compensation |
| 01/12/2010 | US7647060 Wireless communications system and method using transmission timing control |
| 01/05/2010 | US7643803 Power estimation of a transmission |
| 12/30/2009 | WO2009156762A1 Object identification system and method |
| 12/30/2009 | WO2009156289A2 Passive mixer power detector method and apparatus |
| 12/29/2009 | US7638703 Method and system of audio synthesis capable of reducing CPU load |
| 12/22/2009 | US7636402 Enhanced VSB transmitter and receiver |
| 12/17/2009 | US20090310689 Method for modulating a carrier signal and method for demodulating a modulated carrier signal |
| 11/26/2009 | DE102005004084B4 Mischstufe und Verfahren zur Mischung von zwei Signalen, die verschiedene Frequenzen besitzen Mixer and method of mixing of two signals having different frequencies |
| 11/17/2009 | US7620378 Method and system for frequency up-conversion with modulation embodiments |
| 11/17/2009 | US7620376 Method and arrangement for performing analog signal processing and measuring between a signal source and a load |
| 11/10/2009 | US7616927 Method and apparatus to reduce multipath effects on radio link control measurements |
| 11/03/2009 | US7613433 Reducing local oscillation leakage in a radio frequency transmitter |
| 10/29/2009 | US20090267738 Signal conversion device, radio frequency identification (rfid) tag, and method for operating the rfid tag |
| 10/22/2009 | WO2009129512A2 System and method of modulating electrical signals using photoconductive wide bandgap semiconductors as variable resistors |
| 10/20/2009 | US7606538 Mixer circuit and method |
| 10/15/2009 | US20090258614 Impedance measurement in an active radio frequency transmitter |
| 10/14/2009 | CN100551022C Digital broadcast transmitting and receiving system having an improved receiving performance and signal processing method thereof |
| 10/14/2009 | CN100550603C Linearity improvement of gilbert mixers, mixer circuit and radio communication system |
| 10/06/2009 | US7599448 Multi-mode selectable modulation architecture calibration and power control apparatus, system, and method for radio frequency power amplifier |
| 09/30/2009 | CN100546174C Adjusting circuit and method for adjusting amplitude of radio frequency signal |
| 09/24/2009 | US20090237171 Reducing cross modulation in multichannel modulated optical systems with anti-clipping |
| 09/17/2009 | US20090231053 Modulator |
| 09/16/2009 | EP2101407A2 IQ transmitter |
| 09/10/2009 | US20090225892 Method and apparatus for iteratively forming subspace from a dictionary for vsb channel modeling |
| 09/08/2009 | US7587179 Direct synthesis transmitter |
| 08/25/2009 | US7580686 Adaptive predistortion method and arrangement |
| 08/25/2009 | US7580473 Method for modulating a carrier signal and method for demodulating a modulated carrier signal |
| 08/19/2009 | CN100531169C Apparatus and method for frequency generation in mobile communication system |
| 08/13/2009 | WO2009099431A2 Charge pump converter and method therefor |
| 08/13/2009 | US20090203345 Method and system for down-converting an Electromagnetic signal, transforms for same, and Aperture relationships |
| 08/11/2009 | US7574173 Wireless communication over a transducer device |
| 08/04/2009 | US7570127 Method and system for spur suppression in modulators |
| 07/30/2009 | DE10307293B4 System für eine Fernüberwachung des Reifendrucks System for remote monitoring of tire pressure |
| 07/23/2009 | WO2009089986A1 Monostatic multibeam radar sensor device for motor vehicle |
| 07/23/2009 | US20090184761 Amplifier modulation method and apparatus |
| 07/14/2009 | US7561851 System and method for calibrating modules of a wide-range transceiver |
| 07/09/2009 | WO2009084201A1 Signal modulation circuit |
| 07/09/2009 | US20090174820 Multichannel Quadrature Modulation |
| 06/24/2009 | CN100505514C Device including a circuit with adjusting means for adjusting at least one characteristic signal value of a modulated signal |
| 06/18/2009 | WO2003075632A3 Rf amplifier system with interface to provide a computer readable spectral depiction of the re output |
| 06/09/2009 | US7546100 System for generating amplitude matched 45 degree phase separated local oscillator signals |
| 06/04/2009 | US20090141817 Method for Reducing Spectral Regrowth in a Spectrally Efficient Digital Modulation Scheme |
| 06/04/2009 | US20090140821 Apparatus and method for compensating carrier feedthrough in quadrature modulation system |
| 06/03/2009 | EP2066089A2 Preamble generation |
| 06/03/2009 | EP1097508B2 Method and apparatus for compensating for distortion in iq modulators |
| 06/02/2009 | US7542739 Up converter mixer linearization improvement |
| 06/02/2009 | US7542738 Method and apparatus for measuring and compensating for power amplifier distortion and non-linearity |
| 06/02/2009 | US7542724 Method and device of correcting received levels in mobile communication terminal |
| 06/02/2009 | CA2438782C Power oscillator for control of waveshape and amplitude |
| 05/27/2009 | CN100492889C Timing adjusting method and timing adjusting apparatus |
| 05/26/2009 | US7539460 Method and tester for determining an error rate of a mobile-telephone device, especially for USF-BLER |
| 05/26/2009 | US7538631 Multi-mode amplitude modulator control method |
| 05/21/2009 | US20090128247 Intermittent operation circuit and modulation device |
| 05/14/2009 | WO2008155121A3 Method and device for producing an amplitude-modulated signal |
| 05/06/2009 | EP2056447A2 AM transmitter and modulation method using same |
| 05/06/2009 | CN101425778A Integrated controlled signal processor and application thereof |
| 05/05/2009 | US7529522 Apparatus and method for communicating an input signal in polar representation |
| 04/30/2009 | US20090108952 Distortion compensating circuit |
| 04/30/2009 | CA2636481A1 Am transmitter and modulation method using same |
| 04/29/2009 | EP1502350B1 Frequency modulator using switched capacitors |
| 04/28/2009 | US7526045 Multi-tone transmission |
| 04/23/2009 | WO2009050954A1 Frequency converting apparatus and quadrature modulator |
| 04/23/2009 | WO2005081994A3 Method and system for multisite rf transceiver testing |
| 04/23/2009 | US20090103665 Digital broadcast transmission and receiving system having an improved receiving performance and signal processing method thereof |
| 04/23/2009 | US20090103664 Digital broadcast transmission and receiving system having an improved receiving performance and signal processing method thereof |
| 04/23/2009 | US20090103663 Digital broadcast transmission and receiving system having an improved receiving performance and signal processing method thereof |
| 04/23/2009 | US20090103662 Digital broadcast transmission and receiving system having an improved receiving performance and signal processing method thereof |
| 04/23/2009 | US20090103661 Digital broadcast transmission and receiving system having an improved receiving performance and signal processing method thereof |
| 04/23/2009 | US20090103658 Digital broadcast transmission and receiving system having an improved receiving performance and signal processing method thereof |
| 04/22/2009 | CN101416407A Enhanced holographic communications apparatus and method |
| 04/22/2009 | CN101414824A All-digital phase-locked loop |
| 04/21/2009 | US7522891 High frequency peak power detection circuit |
| 04/21/2009 | US7522010 Ultra-low power crystal oscillator |