Patents for H04L 27 - Modulated-carrier systems (89,721) |
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08/05/2008 | US7409015 Adaptive modulation scheme based on cutoff rate with imperfect channel state information |
08/05/2008 | US7409013 Super-orthogonal space-time trellis codes, and applications thereof |
08/05/2008 | US7409012 Modulator and signaling method |
08/05/2008 | US7409011 Systems and methods for the dynamic range compression of multi-bearer single-carrier and multi-carrier waveforms |
08/05/2008 | US7409010 Method and system for transmitting signals with reduced spurious emissions |
08/05/2008 | US7409009 Method and apparatus of peak-to-average power ratio reduction |
08/05/2008 | US7409007 Method and apparatus for reducing adjacent channel power in wireless communication systems |
08/05/2008 | US7409006 Parallel concatenated code with soft-in-soft-out interactive turbo decoder |
08/05/2008 | US7409005 High speed data transmitter and transmitting method thereof |
08/05/2008 | US7409004 Hybrid polar modulator differential phase Cartesian feedback correction circuit for power amplifier linearization |
08/05/2008 | US7409003 Method and apparatus for implementing adaptive tomlinson-harashima precoding in a digital data link |
08/05/2008 | US7408998 System and method for adaptive bit loading source coding via vector quantization |
08/05/2008 | US7408997 Modulation/demodulation apparatus using matrix and anti-matrix |
08/05/2008 | US7408981 Methods and circuits for performing margining tests in the presence of a decision feedback equalizer |
08/05/2008 | US7408980 Semi-distributed power spectrum control for digital subscriber line communications |
08/05/2008 | US7408978 Extended algorithm data estimator |
08/05/2008 | US7408973 Ultra wide bandwidth spread-spectrum communications system |
08/05/2008 | US7408912 Modulation method and circuit for time division multiple access |
08/05/2008 | US7408908 Variable SDMA ACK timeout |
08/05/2008 | US7408873 System and method for round trip delay adjustment in a multipoint-to-point orthogonal frequency division multiplexing system |
08/05/2008 | US7408872 Modulation of signals for transmission in packets via an air interface |
08/05/2008 | US7408489 Method and system for mixed analog-digital automatic gain control |
08/05/2008 | CA2374845C Wireless transceiver network employing node-to-node data messaging |
08/05/2008 | CA2371748C A windowing function for maintaining orthogonality of channels in the reception of ofdm symbols |
08/05/2008 | CA2349854C Dummy error addition circuit |
07/31/2008 | WO2008091348A1 Allocating channels for real-time traffic transmission in a wireless packet data multi-user environment |
07/31/2008 | WO2008091230A1 A radio frequency identification transceiver |
07/31/2008 | WO2008091102A1 Apparatus and method for pilot insertion and arrangement for hierarchical modulation in ofdm transmission system |
07/31/2008 | WO2008090764A1 Reception device and mobile communication system |
07/31/2008 | WO2008089841A1 Calibration signal generator |
07/31/2008 | WO2008089595A1 Time domain interpolation method and apparatus for channel estimation |
07/31/2008 | WO2008089507A1 Communication method and device |
07/31/2008 | WO2008073183A3 Method and apparatus for a multi-mode multi-rate telemetry transmitter |
07/31/2008 | WO2008070068A3 Method and apparatus of enabling multi band transmission |
07/31/2008 | WO2008057899A3 Reference signal design for cell search in an orthogonal wireless communication system |
07/31/2008 | WO2008057688A3 Method and apparatus for determining appropriate channels for communication |
07/31/2008 | WO2008020891A3 Method and system for improving timing position estimation in wireless communications networks |
07/31/2008 | WO2008001365A3 Method, device and system of encrypted wireless communication |
07/31/2008 | WO2007067004A3 Terminal and method for controlling transmission power |
07/31/2008 | US20080182511 Method and apparatus for forward link gain control in a power controlled repeater |
07/31/2008 | US20080181620 Control method for optical phase modulation |
07/31/2008 | US20080181618 Modulating A Signal According To 2n-PSK Modulation |
07/31/2008 | US20080181402 Secure modulation and demodulation |
07/31/2008 | US20080181344 Method and apparatus for providing carrier synchronization in digital broadcast and interactive systems |
07/31/2008 | US20080181339 Maximum likelihood detection method and system |
07/31/2008 | US20080181338 Amplitude detection apparatus |
07/31/2008 | US20080181337 Spur and Distortion Management Techniques for an RF Receiver |
07/31/2008 | US20080181336 Power Consumption Reduction Techniques for an RF Receiver Implementing a Mixing DAC Architecture |
07/31/2008 | US20080181332 Modulating A Signal Using A Fractional Phase Modulator |
07/31/2008 | US20080181331 Pulse amplitude modulated system with reduced intersymbol interference |
07/31/2008 | US20080181328 Communication device with smart antenna using a quality-indication signal |
07/31/2008 | US20080181327 Apparatus and method for cyclic delay diversity in multiple-antenna wireless communication system |
07/31/2008 | US20080181326 Transmitter for communication systems employing an enhanced modulation scheme |
07/31/2008 | US20080181324 Systems and methods for scaling to equalize noise variance |
07/31/2008 | US20080181323 Noise variance estimation |
07/31/2008 | US20080181322 Systems and methods for hybrid-mimo equalization |
07/31/2008 | US20080181321 Systems and methods for low-complexity mimo detection using leaf-node prediction via look-up tables |
07/31/2008 | US20080181320 Radio communication system and radio communication method |
07/31/2008 | US20080181319 Method and apparatus for providing time-frequency diversity in OFDM wireless communication systems |
07/31/2008 | US20080181318 Method of controlling data transmission mode in an orthogonal frequency division multiplexing wireless relay system and apparatus using the method |
07/31/2008 | US20080181317 Apparatus and Method for Estimating Timing Offset of OFDM Symbol, and Method of Recovering Symbol Timing of OFDM Symbol |
07/31/2008 | US20080181315 Two-wire serial handshaking communication interface and method thereof |
07/31/2008 | US20080181292 Apparatus for and Method of Controlling the Operation of an Equalizer |
07/31/2008 | US20080181097 Method and ofdm receiver with multi-dimensional window processing unit for robustly decoding rf signals |
07/31/2008 | US20080181096 Using a single fht to decode access-based handoff probes from multiple users |
07/31/2008 | US20080180579 Techniques for Improving Harmonic and Image Rejection Performance of an RF Receiver Mixing DAC |
07/31/2008 | DE10310158B4 Zugangskontrollsystem mit verschränkter Auswertung von Code- und Entfernungsinformation Access control system with entangled evaluation of code and distance information |
07/31/2008 | DE10310155B4 Zugangskontrollsystem für ein Objekt, insbesondere für ein Kraftfahrzeug und Verfahren zum Betreiben eines Zugangskontrollsystems Access control system for an object, in particular for a motor vehicle and method for operating an access control system |
07/31/2008 | DE102008005677A1 Drahtlose Kommunikationsvorrichtung und Verfahren zum Verringern einer Inbandstörung bei einem GPS-Empfänger Wireless communication device and method for reducing in-band interference in a GPS receiver |
07/31/2008 | DE102007004396A1 Bus-compatible addressable building service device e.g. electronic ballast, for e.g. high pressure discharge lamp, has acoustic reproduction unit reproducing address assigned to device, and controller for controlling unit |
07/31/2008 | DE102007002147A1 Method for transmitting data from transmission or receiving unit to another transmission or receiving unit in communications network, involves forming transmission or receiving unit to transmit modulation with constant envelope |
07/30/2008 | EP1950924A1 Radio sending device, and radio sending method |
07/30/2008 | EP1950923A2 Power adaptive channel estimation for a multi-path receiving system |
07/30/2008 | EP1950900A1 Transmitter, communication system and transmission method |
07/30/2008 | EP1949747A2 A method and apparatus for requesting selected interlace mode in wireless communication systems |
07/30/2008 | EP1949723A1 A method of transmitting and receiving a redirect message in a wireless communication system |
07/30/2008 | EP1949638A1 Transmission circuit and communication apparatus employing the same |
07/30/2008 | EP1949637A2 Variable bandwidth receiver |
07/30/2008 | EP1949636A1 Synchronisation in a multicarrier receiver with guard interval carrelation |
07/30/2008 | EP1949635A2 Peak-to-average power reduction |
07/30/2008 | EP1949634A1 Method and apparatus for transmitting by using transmit diversity at dft spread ofdma |
07/30/2008 | EP1949633A2 Method and apparatus for carrier allocation and management in multi-carrier communication systems |
07/30/2008 | EP1949632A1 Systems, methods, and apparatus for mitigation of nonlinear distortion |
07/30/2008 | EP1949631A2 Multiplexing schemes for ofdma |
07/30/2008 | EP1949630A1 Digital apparatus for soft detection of multi-chip dbpsk signals |
07/30/2008 | EP1949625A1 Iteractive frequency correction using training sequence and data bits |
07/30/2008 | EP1949587A2 Equalizer for am in-band on-channel radio receivers |
07/30/2008 | EP1949578A2 Apparatus and method for simultaneous testing of multiple orthogonal frequency division multiplexed transmitters with single vector signal analyzer |
07/30/2008 | EP1949554A2 Rf power distribution in the frequency domain |
07/30/2008 | EP1949551A1 A method and apparatus for generating a permutation for forward link hopping in wireless communication system |
07/30/2008 | EP1949550A1 A method and apparatus for generating a permutation for reverse link hopping in wireless communication system |
07/30/2008 | EP1949549A2 Pilot sequence detection |
07/30/2008 | EP1949546A1 Method and system for measuring the occupation and allocation of a transmission spectrum |
07/30/2008 | EP1949188A2 Rfid receiver |
07/30/2008 | EP1661346B1 Apparatus and method for providing a multi-carrier signal to be transmitted and apparatus and method for providing an output signal from a received multi-carrier signal |
07/30/2008 | EP1224743B1 Switched sideband frequency low-if transmitter |
07/30/2008 | EP1133856B1 I/q digital demodulator in integrated circuit technology |
07/30/2008 | EP1038379B1 Method and apparatus of selecting a constellation point, for each group of data bits to be transmitted by an analog pcm modem |
07/30/2008 | EP0857379B1 Method and apparatus for interference suppression in spread spectrum signals |
07/30/2008 | CN201094154Y Mobile electronic device containing USB interface |