Patents
Patents for H04J 9 - Multiplex systems in which each channel is represented by a different type of modulation of the carrier (524)
12/2011
12/06/2011US8072873 Adaptive coding and modulation using linked list data structures
11/2011
11/22/2011US8064834 Method of allocating radio resources in multi-carrier system
11/22/2011US8064425 Method for assigning frequency spectrum bandwidth of an OFDM and OFDMA coexistence system
11/02/2011EP2382704A1 Electric motor and device for generating a signal for controlling the same
09/2011
09/27/2011US8027242 Signal coding and decoding based on spectral dynamics
09/20/2011US8023396 Adaptive modulation for fixed wireless link in cable transmission system
09/13/2011US8018829 Method and apparatus for OFDM based on 3D signal constellation
08/2011
08/16/2011US8000221 Adaptive pilot insertion for a MIMO-OFDM system
07/2011
07/19/2011US7983140 Transmitting apparatus, receiving apparatus, and communication system for formatting data
07/12/2011US7978592 Method and apparatus for signaling in multiple user one-slot operation in wireless communication
06/2011
06/23/2011US20110149716 Apparatus and method for transmitting a sub-channel signal in a communication system using an orthogonal frequency division multiple access scheme
06/14/2011US7961588 Communication device for receiving and transmitting OFDM signals in a wireless communication system
06/07/2011US7957258 Communication device for receiving and transmitting OFDM signals in a wireless communication system
05/2011
05/24/2011US7948960 Radio transmission device
05/18/2011EP2323293A1 Method for transferring control data, transmission system, transmitter, and receiver
05/17/2011US7944807 System and method for implementing a single-wire serial protocol
05/11/2011CN101217333B A transmission method and the corresponding acceptance method of channel resource reusing
05/10/2011US7940638 MIMO communication system and method for communicating with single antenna and multi-antenna mobile stations
04/2011
04/26/2011US7933616 Method of estimating the distance between two radio equipments
04/26/2011US7933325 Antenna driving apparatus
02/2011
02/15/2011US7889632 Radio communication system and radio communication method
02/08/2011US7885176 Methods and apparatus for mapping modulation symbols to resources in OFDM systems
02/01/2011US7881222 Method for allocating physical hybrid automatic repeat request indicator channel
02/01/2011US7881180 Systems and method for orthogonal frequency divisional multiplexing
01/2011
01/11/2011US7869341 Method and apparatus for positioning pilot in an OFDMA mobile communication system
12/2010
12/29/2010CN101931521A Method and system for a data transmission in a communication system
11/2010
11/25/2010US20100296814 Method and device for optical data transmission
11/23/2010US7839761 Apparatus and method for transmitting and receiving map information in a communication system
11/23/2010US7839760 Transmitting and receiving systems for increasing service coverage in orthogonal frequency division multiplexing wireless local area network, and method thereof
11/23/2010US7839759 Radio communication apparatus and radio communication method
11/02/2010US7826341 Methods and systems for implementing a pseudo-noise signaling mechanism in wireless communication
11/02/2010US7826340 Hierarchical modulation reverse link interface node providing multiple service levels
11/02/2010US7826339 Hierarchical modulation reverse link interface node
10/2010
10/26/2010US7822800 Apparatus and method for performing a calculation operation
10/21/2010US20100265814 Sequential transmission method
09/2010
09/28/2010US7804761 Multiplexing separately modulated channels
08/2010
08/24/2010US7782749 Method for mapping physical downlink control channel to resources and apparatus for transmitting/receiving the mapped physical downlink control channel in a wireless communication system
08/17/2010US7778148 Method for allocating physical hybrid automatic repeat request indicator channel
08/17/2010US7778147 MIMO communication system using an adaptive transmission mode switching technique
08/12/2010US20100202551 Dual Mode Communication Systems And Methods
08/10/2010US7773498 Transmitting/receiving apparatus, method, program, recording medium, and integrating circuit used in communication network
07/2010
07/29/2010WO2010083877A1 Electric motor and device for generating a signal for controlling the same
07/20/2010US7760758 Method and apparatus for blindly separating mixed signals, and a transmission method and apparatus of mixed signals
06/2010
06/29/2010US7746816 Method and system for a power control in a communication system
06/22/2010US7742388 Packet generation systems and methods
06/17/2010US20100149961 Method oftransmitting and processing data and transmitter in a wireless communication system
06/15/2010US7738355 Packet data transmission with optimum preamble length
06/01/2010US7729374 Fibre channel interface apparatus and methods
06/01/2010US7729233 Dual mode communication systems and methods
05/2010
05/25/2010US7724637 Method and apparatus for controlled spectrum multi-carrier modulation
05/12/2010CN101707809A mixed waveform configuration for wireless communications
05/06/2010US20100110872 Adaptive modulation for fixed wireless link in cable transmission system
05/04/2010US7710856 Methods and systems for implementing a pseudo-noise signaling mechanism in wireless communication
04/2010
04/29/2010US20100103810 Modulation coding scheme selection in a wireless communication system
04/28/2010CN1788444B Method and system for a data transmission in a communication system
04/27/2010US7706246 Adaptive modulation for fixed wireless link in cable transmission system
04/20/2010US7702030 Module to module signaling with jitter modulation
04/13/2010US7697902 Radio frequency remote control
04/13/2010US7697409 Transmitter apparatus and method for transmitting packet data units in a communication system
04/06/2010US7693033 Multiple access method and radio apparatus utilizing the same
03/2010
03/31/2010CN101689701A Mimo天线装置及无线通信装置 Mimo antenna device and a radio communication apparatus
03/16/2010US7680278 Domino scheme for wireless cryptographic communication and communication method incorporating same
03/09/2010US7675842 Adaptive coding and modulation using linked list data structures
02/2010
02/18/2010US20100039925 Method of determining the location of the fft window and the delay spread for the platinum broadcast channel estimator
02/02/2010US7656786 Method for pulse shape design for OFDM
01/2010
01/26/2010US7653363 System and apparatus for performing broadcast and localcast communications
01/21/2010US20100014487 Method and system for a data transmission in a communication system
12/2009
12/30/2009WO2009105493A3 Method and apparatus for allocating resources in wireless communications system
12/15/2009US7633848 Communication device for receiving and transmitting OFDM signals in a wireless communication system
12/02/2009CN100566314C Equipment for wireless communications
12/01/2009US7626918 Frequency offset differential pulse position modulation
11/2009
11/24/2009US7623440 Method and system for adaptive modulation
10/2009
10/27/2009US7609610 Data transmission method, data reception method, transmission device and reception device using the same, and communication system using the same
10/27/2009US7609609 Apparatus and method for processing digital signal in an OFDMA wireless communication system
10/22/2009US20090262757 Variable bit rate communication system
10/21/2009EP2109942A1 Detection method and apparatus for a multi-stream mimo
10/06/2009US7599390 Approximate bit-loading for data transmission over frequency-selective channels
10/01/2009US20090245083 Adaptive transmissions for optimized application delivery in wireless networks
09/2009
09/22/2009US7593697 Adaptive coding and modulation
09/15/2009US7590044 Method and apparatus for interleaving\within a communication system
09/10/2009US20090225646 Methods and systems for choosing cyclic delays in multiple antenna ofdm systems
09/01/2009US7583694 Data definition apparatus, systems, and methods
09/01/2009US7583583 System and method for reducing peak-to-average power ratio in orthogonal frequency division multiplexing signals using reserved spectrum
08/2009
08/11/2009US7573902 Fibre channel interface unit
07/2009
07/21/2009US7564793 In-band call association signaling for a single number destination
07/14/2009US7561897 System and apparatus for performing broadcast and localcast communications
07/14/2009US7561510 Wireless LAN system
07/07/2009US7558189 Image signal cancel-type heterodyne reception method and direct conversion orthogonal frequency division multiplexing reception method
06/2009
06/09/2009US7545731 Virtual buffer size management system for the transmission of blocks of data bits in an HS-DSCH downlink channel of a mobile communications network
06/02/2009US7542411 Echo profile probe
05/2009
05/26/2009US7539122 Device and method for management of the transmission of blocks of data in an HS-DSCH downlink channel of a mobile communications network
05/19/2009US7535860 Apparatus and method for transmitting/receiving pilot signal in communication system using OFDM scheme
05/12/2009US7532563 Mechanism to improve quality of channel estimates in OFDM transmissions
05/12/2009US7532562 High-data-rate communication link using multiple lower rate modems
03/2009
03/26/2009WO2009038545A1 Methods for network throughput enhancement
03/04/2009EP1508212B9 Method and device for optical data transmission
03/03/2009US7499474 Efficient HARQ control and channel quality feedback reporting for multicarrier systems
02/2009
02/26/2009DE10339886B9 Verfahren zur Neusynchronisation eines Mobilfunkempfängers bei einem Umschalten zwischen zwei unterschiedlichen Modulationsverfahren Re-synchronization method of a mobile receiver when switching between two different modulation methods
02/10/2009US7489621 Adaptive puncturing technique for multicarrier systems
01/2009
01/27/2009US7483507 Method for resynchronization of a mobile radio receiver in the event of a changeover between two different modulation methods
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