| Patents for H03C 5 - Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal (621) |
|---|
| 01/10/2006 | US6985538 Digital radio communication system and method |
| 01/03/2006 | US6982607 Amplitude and phase modulation using dual digital delay vectors |
| 12/22/2005 | DE102004049019A1 Transmitter for use in radio communication system, has two phase and frequency modulators combined by adders, where output signals of modulators are strengthened by adders over each power amplifier |
| 12/21/2005 | EP1273106B1 Method and transmission circuit for producing a transmission signal |
| 11/30/2005 | CN1702959A RF power amplifier having high power-added efficiency |
| 11/22/2005 | US6968163 Method and transmission circuit for generating a transmission signal |
| 11/09/2005 | EP1072155B1 Expanded information capacity for existing communication transmission systems |
| 11/03/2005 | US20050245208 Polar modulation transmission apparatus and radio communication apparatus |
| 11/03/2005 | US20050242889 PLL modulation circuit and polar modulation apparatus |
| 10/26/2005 | CN1225088C Method and apparatus for reducing oscillator noise by noise-feedforward |
| 10/06/2005 | US20050220217 Transmitter and wireless communication apparatus using same |
| 09/22/2005 | WO2005013410A9 Enhanced holographic communications apparatus and method |
| 09/21/2005 | EP1576722A1 Correction method and correction loop for a complex digital signal |
| 08/03/2005 | CN1649254A Transmission circuit |
| 07/28/2005 | WO2005020430A3 Pseudo-polar modulation for radio transmitters |
| 07/28/2005 | US20050164660 Transmission circuit |
| 07/26/2005 | CA2351761C Correction of amplitude and phase imbalance in psk receivers |
| 07/06/2005 | EP1550279A2 Electromagnetic wave trasmitter systems, methods and articles of manufacture |
| 07/05/2005 | US6914556 Method and apparatus for magnetron coherence |
| 06/23/2005 | US20050136858 Bipolar modulator |
| 06/16/2005 | WO2005055413A1 Outphasing modulator |
| 06/15/2005 | CN1206801C Circuit and method for I/Q modulation with independent, high efficiency amplitude modulation |
| 06/08/2005 | EP1538555A2 Transponder having two different modulation methods |
| 06/08/2005 | EP1537649A1 Method and apparatus for reducing dynamic range of a power amplifier |
| 06/02/2005 | US20050117662 Digital frequency converter |
| 06/02/2005 | US20050116786 Amplitude and phase modulation using dual digital delay vectors |
| 06/02/2005 | US20050116785 Modulation using discrete amplitude adjustment and dual digital delay lines |
| 06/01/2005 | EP1536554A2 Digital frequency converter |
| 06/01/2005 | CN1622449A Digital frequency converter |
| 05/26/2005 | US20050110590 Outphasing modulator |
| 05/17/2005 | US6895045 Balancing amplitude and phase |
| 05/12/2005 | US20050100077 Multipath-adapted holographic communications apparatus and methods |
| 05/11/2005 | CN1201482C RF power amplifier having high power added efficiency |
| 05/10/2005 | US6892057 Method and apparatus for reducing dynamic range of a power amplifier |
| 04/20/2005 | CN1607742A Voice and control signal transmission method in wireless microphone and transmitter therefor |
| 04/14/2005 | US20050079827 Wireless audio signal and control signal device and method thereof |
| 03/03/2005 | WO2005020430A2 Pseudo-polar modulation for radio transmitters |
| 03/03/2005 | US20050046507 Pseudo-polar modulation for radio transmitters |
| 02/24/2005 | US20050041805 Miniaturized holographic communications apparatus and methods |
| 02/24/2005 | US20050041758 Holographic ranging apparatus and methods |
| 02/24/2005 | US20050041757 Frequency-hopped holographic communications apparatus and methods |
| 02/24/2005 | US20050041756 Real domain holographic communications apparatus and methods |
| 02/24/2005 | US20050041752 Pulse-shaped holographic communications apparatus and methods |
| 02/24/2005 | US20050040896 High frequency semiconductor integrated circuit device, wireless electric unit and wireless communication system |
| 02/10/2005 | WO2005013410A2 Enhanced holographic communications apparatus and method |
| 02/10/2005 | CA2534741A1 Enhanced holographic communications apparatus and method |
| 02/09/2005 | CN1578114A Modulation circuit device, modulation method and radio communication device |
| 02/09/2005 | CN1188946C Circuit and method for linearizing amplitude modulation in power amplifier |
| 02/08/2005 | US6853836 Polar loop transmission circuit |
| 01/13/2005 | US20050008093 Modulation circuit device, modulation method and radio communication device |
| 01/04/2005 | CA2185003C Method and apparatus for am compatible digital broadcasting |
| 12/16/2004 | WO2004110008A1 Digital time alignment in a polar modulator |
| 12/09/2004 | US20040247041 Digital time alignment in a polar modulator |
| 11/23/2004 | US6822523 Power modulator and method of operating a power modulator |
| 11/04/2004 | DE10357242A1 System und Verfahren zum Erzeugen von symetrischen modulierten Signalen mit willkürlicher Amplituden- und Phasensteuerung unter Verwendung einer Modulation System and method for generating modulated signals symmetrical with arbitrary amplitude and phase control using a modulation |
| 11/03/2004 | EP1145517B1 Correction of amplitude and phase imbalance in psk receivers |
| 10/28/2004 | US20040212445 Filter method and apparatus for polar modulation |
| 09/30/2004 | US20040192369 Method and apparatus for reducing dynamic range of a power amplifier |
| 09/22/2004 | EP1260017B1 Method and transmission circuit for producing a transmission signal |
| 09/22/2004 | CN1168199C Quadrature modulator with carrier leakage compensation |
| 09/15/2004 | EP1458158A2 Correction of amplitude and phase imbalance in PSK receivers |
| 09/10/2004 | WO2004034667A3 Electromagnetic wave trasmitter systems, methods and articles of manufacture |
| 08/31/2004 | US6784817 Data generating method, data generator, and transmitter using the same |
| 08/25/2004 | CN1164061C Amplitude-modulation multi-way broadcasting device |
| 08/19/2004 | US20040162039 Method for amplitude modulation of a radio frequency signal, and device therefor |
| 08/11/2004 | CN1520049A Method for radio transmitting data, its transmitter and receiver and modulator thereof |
| 08/04/2004 | CN1160850C Driving circuits for switch mode power amplifiers |
| 07/29/2004 | US20040145452 Receiving/backscattering arrangement and method with two modulation modes for wireless data transmission as well as modulation arrangement therefor |
| 07/27/2004 | US6768390 System and method for generating balanced modulated signals with arbitrary amplitude and phase control using modulation |
| 07/22/2004 | DE10301451A1 Wireless data transmission method between base station and transponder, by modulating electromagnet waves at receiver using modulation technique based on received field strength |
| 07/20/2004 | US6765929 Method and apparatus for combining signals |
| 07/01/2004 | WO2004055969A1 Correction method and correction loop for a complex digital signal |
| 07/01/2004 | CA2510692A1 Correction method and correction loop for a complex digital signal |
| 06/24/2004 | WO2004036737A3 Transmitter |
| 06/24/2004 | WO2004021569B1 Power modulator and method of operating a power modulator |
| 05/27/2004 | US20040100588 Expanded information capacity for existing communication transmission systems |
| 05/21/2004 | WO2004021569A3 Power modulator and method of operating a power modulator |
| 05/12/2004 | EP1417748A2 Method for amplitude modulation of a radio frequency signal, and device therefor |
| 05/12/2004 | CN1496034A AM and digital coexisting broadcasting method and device |
| 04/29/2004 | WO2004036737A2 Transmitter |
| 04/28/2004 | EP1138115B1 Amplitude modulation to phase modulation cancellation method in an rf amplifier |
| 04/22/2004 | WO2004034667A2 Electromagnetic wave trasmitter systems, methods and articles of manufacture |
| 03/24/2004 | CN1143463C Method and apparatus for AM compatible digital broadcasting |
| 03/17/2004 | CN1142667C Correction of amplitude and phase imbalance in PSK receiver |
| 03/11/2004 | WO2004021569A2 Power modulator and method of operating a power modulator |
| 03/04/2004 | WO2004019479A1 Method and apparatus for reducing dynamic range of a power amplifier |
| 03/04/2004 | US20040043735 Power modulator and method of operating a power modulator |
| 02/26/2004 | WO2002101916A3 Method for amplitude modulation of a radio frequency signal, and device therefor |
| 02/26/2004 | US20040037369 Data generating method, data generator, and transmitter using the same |
| 02/17/2004 | US6693969 Phase-locked loop methods and structures for generating modulated communication signals with nonconstant envelopes |
| 02/05/2004 | WO2004012411A1 Mirror translation loop transmitter architecture |
| 01/29/2004 | US20040017858 Mirror translation loop transmitter architecture |
| 01/27/2004 | US6683918 High precision, low phase noise synthesizer with vector modulator |
| 01/21/2004 | CN1469552A Data generating method, data generator and transmitter using with the same |
| 01/20/2004 | US6681101 RF transmitter with extended efficient power control range |
| 12/16/2003 | CA2165420C System and method for modulating a carrier frequency |
| 12/10/2003 | CN1130817C Method and apparatus for generating linearly modulated signal by polar modulation |
| 11/26/2003 | EP1166447B1 Method and apparatus for reducing oscillator noise by noise-feedforward |
| 11/20/2003 | US20030215026 AM to AM correction system for polar modulator |
| 10/21/2003 | US6636112 High-efficiency modulating RF amplifier |