| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 06/09/2009 | US7545772 Apparatus and method for assigning subchannels in an OFDMA communication system |
| 06/09/2009 | US7545770 Radio communication system and radio communication method |
| 06/09/2009 | US7545734 Scattered pilot pattern and channel estimation method for MIMO-OFDM systems |
| 06/09/2009 | US7545733 Automatic gain control system for multi-user digital OFDM transmission systems over the electric network |
| 06/09/2009 | US7545732 Apparatus and method for assigning sub-carriers in an orthogonal frequency division multiplex system |
| 06/04/2009 | WO2009070441A1 Digital pre-distortion for orthogonal frequency division multiplexing (ofdm) signals |
| 06/04/2009 | WO2009069938A1 Method of allocating radio resource in wireless communication system |
| 06/04/2009 | WO2009069937A1 Method of transmitting ack/nack signal in wireless communication system |
| 06/04/2009 | WO2009069936A1 Method of transmitting control signal in wireless communication system |
| 06/04/2009 | WO2009069306A1 Wireless communication method, radio transmitter apparatus and radio receiver apparatus |
| 06/04/2009 | WO2009069263A1 Demodulation device, reception device, and demodulation method |
| 06/04/2009 | WO2009069088A2 Ici cancellation apparatus and method for ofdm systems |
| 06/04/2009 | WO2009069083A2 Pn phase recovery in a dmb-t system |
| 06/04/2009 | WO2009069082A2 Detection method for signal frame configuration and signal frame header for broadcast signal |
| 06/04/2009 | WO2009068971A1 Recursive time-frequency channel estimation |
| 06/04/2009 | WO2009068053A1 Method of assembling a frame in an orthogonal frequency division multiple access (ofdma)-based communication system and communication system |
| 06/04/2009 | WO2009048305A3 Method for transmitting codeword |
| 06/04/2009 | WO2009036216A3 Multiplexed beacon symbols for a wireless communication system |
| 06/04/2009 | WO2009004570A3 Cyclic prefix in the downlink and zero prefix in the uplink or unit chooses cyclic or zero prefix choice according to the power available to it |
| 06/04/2009 | WO2007091858A3 Method of transmitting channel quality information in mobile communication system |
| 06/04/2009 | WO2005086829A3 Combined frequency-time domain power adaptation for cdma communication systems |
| 06/04/2009 | US20090142076 Frequency offset compensating apparatus and method, and optical coherent receiver |
| 06/04/2009 | US20090141839 Apparatus and method for downstream power management in a cable system |
| 06/04/2009 | US20090141838 Apparatus and method for automatically changing broadcast channel for mobile communication terminal adapted to receive digital multimedia broadcast |
| 06/04/2009 | US20090141837 Methods and apparatus for resovling frequency errors during transistion between communication networks |
| 06/04/2009 | US20090141836 Reception device |
| 06/04/2009 | US20090141835 Apparatus and method for receiver in multiple antenna system |
| 06/04/2009 | US20090141834 Receiver and receiving method for rf signals |
| 06/04/2009 | US20090141833 Multi-channel tuning receiver and multi-channel tuning method thereof |
| 06/04/2009 | US20090141832 Method for estimating frequency offset at a subscriber station receiver in a multi-carrier system |
| 06/04/2009 | US20090141831 Phase error estimator, coherent receiver and phase error estimating method |
| 06/04/2009 | US20090141830 Receiver and method for receiving wireless signals |
| 06/04/2009 | US20090141829 Methods and systems for transmission of multiple modulated signals over wirelss networks |
| 06/04/2009 | US20090141827 Data transfer between chips in a multi-chip semiconductor device with an increased data transfer speed |
| 06/04/2009 | US20090141826 Digital signal transmitting system, receiving apparatus and receiving method |
| 06/04/2009 | US20090141823 Power Reduction For Digital Subscriber Line |
| 06/04/2009 | US20090141822 Method and system for synchronizing ofdm transmission symbols |
| 06/04/2009 | US20090141821 Procedure for simultaneous transmission in time and frequency of multiple communications of data by means of ofdm modulations |
| 06/04/2009 | US20090141820 Apparatus, computer program and method for determining a symbol estimate |
| 06/04/2009 | US20090141819 Method and apparatus of recursive time-frequency channel estimation |
| 06/04/2009 | US20090141818 Wireless communication apparatus and wireless communication method in multicarrier communication |
| 06/04/2009 | US20090141817 Method for Reducing Spectral Regrowth in a Spectrally Efficient Digital Modulation Scheme |
| 06/04/2009 | US20090141816 Method of Transmission Power Control and Communication Device |
| 06/04/2009 | US20090141791 System and method for huffman shaping in a data communication system |
| 06/04/2009 | US20090141788 Balancing amplitude and phase |
| 06/04/2009 | US20090141787 Adaptive equalization methods and apparatus |
| 06/04/2009 | US20090141786 Apparatus and method of estimating signal-to-noise ratio |
| 06/04/2009 | US20090141785 Real Time Dynamic Correlator for Evaluating Electrical Characteristics of a Transmitter |
| 06/04/2009 | US20090141783 Communication device and method of limiting quantity of data transmitted by a communication device |
| 06/04/2009 | US20090141782 Voice and data communication services using orthogonal sub-channels |
| 06/04/2009 | US20090141781 Digital communication using an inexpensive reference crystal |
| 06/04/2009 | US20090141681 Apparatus and method for assigning subchannels in an ofdma communication system |
| 06/04/2009 | US20090140901 Risa controller for an rf integrated circuit (rfic) having improved execution speed |
| 06/04/2009 | US20090140821 Apparatus and method for compensating carrier feedthrough in quadrature modulation system |
| 06/04/2009 | DE102008059426A1 Carrier signal demodulation method for testing functionality of signal preproduction and/or signal transmitting device of access control system of vehicle, involves producing demodulated output signal from stage signals |
| 06/03/2009 | EP2066089A2 Preamble generation |
| 06/03/2009 | EP2066088A1 Staggered Pilot Transmission For Channel Estimation And Time Tracking |
| 06/03/2009 | EP2066068A1 Receiving apparatus, communication system, receiving method and program |
| 06/03/2009 | EP2066060A2 Method for balancing the ratio Eb/I in a service multiplexing CDMA system and telecommunication systems using this method. |
| 06/03/2009 | EP2064852A1 Dynamically selecting methods to reduce distortion in multi-carrier modulated signals resulting from high peak-to-average power ratios |
| 06/03/2009 | EP2064851A1 Calculating peak-to-average power ratio reduction symbols for multi-carrier modulated signals using a gradient-descent approach |
| 06/03/2009 | EP2064850A1 Method of communicating and associated transmitter using coded orthogonal frequency division multiplexing (cofdm) |
| 06/03/2009 | EP2064849A1 System and method for communicating data using symbol-based randomized orthogonal frequency division multiplexing (ofdm) with applied frequency domain spreading |
| 06/03/2009 | EP2064848A1 System and method for applying frequency domain spreading to multi-carrier communications signals |
| 06/03/2009 | EP2064847A1 Demodulation method |
| 06/03/2009 | EP1820315B1 Method for controlling an EER power amplifier for digital transmission |
| 06/03/2009 | EP1639774B1 Method and apparatus for receiving digital multicarrier signals using a wavelet transform |
| 06/03/2009 | EP1405479B1 Iq-imbalance |
| 06/03/2009 | EP1323236B1 Method and apparatus for automatic frequency control in a cdma receiver |
| 06/03/2009 | EP1097508B2 Method and apparatus for compensating for distortion in iq modulators |
| 06/03/2009 | CN101449537A Distribution of bits over radio channels taking account of radio channel quality |
| 06/03/2009 | CN101449536A Signal acquisition for wireless communication systems |
| 06/03/2009 | CN101449535A A method of configuring wireless resource for effective and efficient transmission in a wireless communication system |
| 06/03/2009 | CN101449534A Jointed grouping detection in wireless communication system having one or more receivers |
| 06/03/2009 | CN101448147A Apparatus for decoding video signals encoded in different formats |
| 06/03/2009 | CN101447971A Automatic frequency control method of digital audio broadcasting receiver and tuner and channel decoding chip |
| 06/03/2009 | CN101447970A Method for conducting LOFDM system timing and carrier synchronization utilizing training sequence |
| 06/03/2009 | CN101447969A Channel estimation method of multi-band orthogonal frequency division multiplexing ultra wide band system |
| 06/03/2009 | CN101447968A Frequency deviation capturing method based on pilot signals in a DRM receiver |
| 06/03/2009 | CN101447967A Pilot frequency sequence structure used in OFDM/OQAM system and the construction method thereof |
| 06/03/2009 | CN101447966A A method of controlling self-adapting adjusting peak-to-average ratio of threshold |
| 06/03/2009 | CN101447965A System of echo cancellation and echo channel estimation using the multiple antennas |
| 06/03/2009 | CN101447964A Proposal for quadrature carrier wave ultra wide band synchro system |
| 06/03/2009 | CN101447963A Device for and method of signal synchronization in a communication system |
| 06/03/2009 | CN101447962A Method, device and synchronous system for sending and receiving synchronous information |
| 06/03/2009 | CN101447961A Method, system and device for signal generation and information transmission in broadband wireless communication |
| 06/03/2009 | CN101447960A Interlayer modulation method, device, orthogonal frequency division multiple access method and transmitter |
| 06/03/2009 | CN101447959A Multicarrier modulation and demodulation method for remote signal |
| 06/03/2009 | CN100496036C Dual carrier modulator, OFDM transmitter therewith, and a method thereof |
| 06/03/2009 | CN100496035C Transmitter and transmission control method |
| 06/03/2009 | CN100496034C Power amplifier transient compensation in OFDM systems |
| 06/03/2009 | CN100496033C Demodulating method of binary carrier shift key-controlling system based on Hibert transform |
| 06/03/2009 | CN100495955C Orthogonal frequency division multiplex receiving system for symbol timing synchronization and its method |
| 06/03/2009 | CN100495928C Coded modulation for partially coherent systems |
| 06/02/2009 | US7543009 Fractional fourier transform convolver arrangement |
| 06/02/2009 | US7542729 Communication system |
| 06/02/2009 | US7542679 Optical transmission systems, devices, and method |
| 06/02/2009 | US7542555 Computer-based multifunctional personal communication system with caller ID |
| 06/02/2009 | US7542536 Resampler for a bit pump and method of resampling a signal associated therewith |
| 06/02/2009 | US7542530 Apparatus and method for controlling a digital automatic gain controller in an orthogonal frequency division multiple access communication system |