Patents
Patents for H03C 7 - Modulating electromagnetic waves (533)
10/2009
10/27/2009US7609679 Cellular system
09/2009
09/24/2009US20090238299 Detecting the Number of Transmit Antennas in Wireless Communication Systems
09/08/2009US7586862 Multi-connection, non-simultaneous frequency diversity in radio communication systems
09/02/2009EP2095500A1 Method, system and apparatus for the control of transmit diversity
09/01/2009US7583939 Method and system for antenna selection in wireless networks
08/2009
08/11/2009US7574179 Mobile broadband wireless network with interference mitigation mechanism to minimize interference within a cluster during multiple concurrent transmissions
08/11/2009US7574178 Apparatus and method for cancelling interference in a mobile communication system using multiple antennas
07/2009
07/30/2009WO2009093232A2 Multi-mode wireless communication link
07/28/2009US7567372 Electrical device utilizing charge recycling within a cell
07/23/2009US20090186585 Multi-mode wireless communication link
07/08/2009CN101479930A Pulse generation circuit and modulator
06/2009
06/10/2009EP2067363A2 Point-to-point communication method with interference mitigation
06/02/2009US7542734 Data transmission scheme in wireless communication system
06/02/2009US7542733 Method and apparatus for diversity transmission from a mobile station
06/02/2009US7542682 Millimeter wave transmitter using optical heterodyning
05/2009
05/26/2009US7539260 Detecting the number of transmit antennas in wireless communication systems
05/12/2009US7532599 Apparatus and method for allocating user in a multiple antenna mobile communication system supporting multi-user diversity
05/07/2009WO2008029413A3 Point-to-point communication method with interference mitigation
04/2009
04/28/2009US7526258 Method and apparatus for transmitting signals, method and apparatus for receiving the signals, and communication system utilizing the same
04/16/2009US20090096545 Dynamic frequency tuning of electric and magnetic metamaterial response
03/2009
03/03/2009US7499696 Method to optimize hierarchical modulation for a diversity system
02/2009
02/26/2009US20090054014 Transmitter and Transmitting Method Thereof In Wireless Communication System
02/24/2009US7496334 Transmitter apparatus and wireless communication apparatus
02/11/2009CN101364790A Method for realizing ASK modulation bu changing driver source voltage
02/10/2009US7489910 Wireless transmitter and amplifier
01/2009
01/13/2009US7477695 Wireless communication system, wireless communication apparatus, wireless communication method, and computer program
12/2008
12/18/2008WO2008151469A1 Heating device and method using a pseudo-uniform electromagnetic field
12/02/2008US7460494 Adaptive signaling in multiple antenna systems
11/2008
11/18/2008US7453948 Apparatus and method for transmitting/receiving data using a multiple antenna diversity scheme in a mobile communication system
10/2008
10/14/2008US7436903 Multicarrier transmitter and method for transmitting multiple data streams with cyclic delay diversity
10/09/2008WO2008121159A2 Active terahertz metamaterial devices
09/2008
09/18/2008US20080227423 Method to enable open loop antenna transmit diversity on channels having dedicated pilots
09/18/2008US20080227415 Method, apparatus and system for phase difference adjustment in transmit diversity
09/18/2008US20080227414 System, method and apparatus for transmit diversity control based on variations in propagation path
09/09/2008US7423989 Preamble formats for MIMO wireless communications
08/2008
08/28/2008US20080207238 Transmission Over a Multiple Input Multiple Output Broadcast Channel (Mimo-Bc)
08/28/2008US20080207142 Amplitude Modulation Apparatus, Amplitude Limiting Method, and Computer-Readable Program
08/19/2008US7415249 Method for operating a mobile radio communications system and stations thereof
07/2008
07/22/2008US7403777 Mobile communication system, mobile station and diversity handover branch control method
07/15/2008US7400609 Partitioning scheme for an OFDM transceiver
07/01/2008US7395032 Transmissions from a station with multiple antennae
06/2008
06/19/2008WO2008073244A1 Method, system and apparatus for the control of transmit diversity
06/12/2008US20080139137 Method for Creating Multiple-Input-Multiple-Output Channel with Beamforming Using Signals Transmitted from Single Transmit Antenna
06/12/2008US20080139136 Multiple-Input Multiple-Output Wireless Antennas
04/2008
04/29/2008US7366480 Radio communication device
04/24/2008WO2008048788A2 Wireless communication system with transmit diversity designs
04/17/2008US20080090529 Wireless communication system with transmit diversity designs
04/08/2008US7356313 Method to enable open loop antenna transmit diversity on channels having dedicated pilots
03/2008
03/20/2008WO2008032311A2 Switched bands phase shifter
03/20/2008US20080070518 Mobile communication system
03/18/2008US7346040 Providing a high speed data modem based on MIMO technology using a cable or single antenna
03/12/2008EP1516428B1 Millimeter wave transmitter using optical heterodyning
03/11/2008US7343543 Method, system and apparatus for transmitting interleaved data between stations
02/2008
02/12/2008US7330271 Electromagnetic resonant sensor with dielectric body and variable gap cavity
01/2008
01/03/2008WO2008001663A1 Pulse generation circuit and modulator
01/03/2008WO2008001383A2 Method and system for converting a modulated optical signal to a modulated electric signal
12/2007
12/27/2007WO2007148691A1 Pulse modulation circuit and pulse modulation method
12/25/2007US7313409 Method and apparatus for transmit power control during beam switching
12/20/2007US20070293165 Multi-connection, non-simultaneous frequency diversity in radio communication systems
12/20/2007US20070293164 Multi-connection, non-simultaneous frequency diversity in radio communication systems
12/18/2007US7310501 Transmission diversity systems
12/12/2007EP1435160B1 Method for reducing transmissions in boundary zones, in amplitude modulation transmitters operating in digital mode
12/04/2007US7304554 U-shaped microwave and millimeter wave resonator filter
11/2007
11/27/2007US7302238 Transmit diversity system, method and computer program product
11/15/2007US20070263750 Mobile communication device
11/13/2007US7295153 Acousto-radio frequency modulator and applications therefore
11/01/2007WO2007018803A3 Antenna diversity arrangement, rf transceiver arrangement and method of operation
10/2007
10/18/2007DE102006017175A1 Balancierter Serienmischer für Hochfrequenzsignale Balanced mixer series for high frequency signals
10/11/2007US20070238420 Method and Device for Transmitting a Signal in a Multi-Antenna System, Signal, and Method for Estimating the Corresponding Transmission Channels
10/02/2007US7277730 Method of allocating radio resources in telecommunication system, and telecommunication system
07/2007
07/31/2007US7251460 Radio communication system
07/31/2007US7251459 Dual frequency band wireless LAN
07/25/2007CN101006334A Electromagnetic resonant sensor
07/24/2007US7248841 Method and apparatus for optimization of wireless multipoint electromagnetic communication networks
06/2007
06/28/2007US20070147541 Transmitter apparatus and wireless communication apparatus
05/2007
05/29/2007US7224748 Method for reducing out-of-band and spurious emissions of AM transmitters in digital operation
05/24/2007US20070116146 System and method for driving an antenna
05/01/2007US7212800 Diversity control method and wireless communication apparatus
04/2007
04/25/2007EP1488532B1 Method and apparatus for implementing smart antennas and diversity techniques
04/24/2007US7209714 Apparatus, and associated method, for communicating data at selected levels of diversity in a radio communication system
04/05/2007WO2007037719A1 Information transmitting an receiving method and device
03/2007
03/29/2007US20070072560 Site diversity operating method and program
03/29/2007US20070072559 Transmitter delay and phase adjustment
03/28/2007CN1939075A Feeder cable reduction
03/22/2007DE112005000817T5 Elektromagnetischer Resonanzsensor Electromagnetic resonance sensor
03/07/2007CN1926770A Transmitter apparatus and wireless communication apparatus
03/06/2007US7187912 Apparatus and method for wireless local area network (LAN) antenna selection
02/2007
02/22/2007WO2006057733A3 Method and system for selecting transmit antennas to reduce antenna correlation
02/20/2007US7181175 Transmit network for a cellular base-station
02/14/2007EP1751890A2 Modified preamble structure for ieee 802.11a extensions to allow for coexistence and interoperability between 802.11a devices and higher data rate, mimo or otherwise extended devices
02/06/2007US7174138 Power-based hardware diversity
02/01/2007US20070026899 Fault-tolerant amplifier matrix
01/2007
01/23/2007US7167691 Transmission diversity method in mobile communication system
01/23/2007US7167690 Radio communication system
01/09/2007US7162211 Methods and apparatus for transmitting information between a basestation and multiple mobile stations
12/2006
12/20/2006EP1733498A1 Method to enable open loop antenna transmit diversity on channels having dedicated pilots
12/19/2006US7151951 Using beamforming and closed loop transmit diversity in a multi-beam antenna system
12/12/2006US7149483 Amplifying diversity signals using power amplifiers
12/07/2006US20060275041 Optical transmitter and optical receiver
12/06/2006EP1728403A1 Feeder cable reduction
1 2 3 4 5 6