| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 02/22/2005 | US6859506 Ultra wideband communication system, method, and device with low noise reception |
| 02/22/2005 | US6859505 Method, apparatus and system for use in determining pilot-to-data power ratio in wireless communication |
| 02/22/2005 | US6859502 Transmitting and receiving apparatus capable of the suppression of the microphonic noise in digital transmission system |
| 02/22/2005 | US6859501 System for transmitting high-speed added-value services in terrestrial digital broadcasting |
| 02/22/2005 | US6859490 Method and system for wireless communications using different modulation techniques to provide guard times |
| 02/22/2005 | US6859489 Method and device for determining the carrier frequency of base stations in the mobile receiver of a cellular mobile radio system working with W-CDMA |
| 02/22/2005 | US6859104 Tunable power amplifier matching circuit |
| 02/22/2005 | US6859094 Phase demodulation method for minimizing phase error in communication signals |
| 02/22/2005 | CA2317140C Multicarrier personal access communication system |
| 02/17/2005 | WO2005015866A1 Power allocation for throughput enhancement in a multicarrier communication sytem |
| 02/17/2005 | WO2005015865A1 Multi-carrier communication apparatus with adaptive transmission according to transmission path fluctuations |
| 02/17/2005 | WO2005015848A1 Back-end alignment to avoid sdma ack time-out |
| 02/17/2005 | WO2005015846A2 Arranging sdma poll groups by response length |
| 02/17/2005 | WO2005015844A1 Multicast sdma training polls |
| 02/17/2005 | WO2005015843A1 Variable sdma ack timeout |
| 02/17/2005 | WO2005015815A2 Technique to select transmission parameters |
| 02/17/2005 | WO2005015813A1 Method and device for determining the link quality in an ofdm network |
| 02/17/2005 | WO2005015812A1 Sdma communications with non-immediate block acknowledgment |
| 02/17/2005 | WO2005015810A1 Adaptive signaling in multiple antenna systems |
| 02/17/2005 | WO2005015797A1 Radio communication apparatus and pilot symbol transmission method |
| 02/17/2005 | WO2005015796A1 Ofdm system and method employing ofdm symbols with known or information-containing prefixes |
| 02/17/2005 | WO2005015770A1 Adaptive bit loading and power allocation in a multicarrier wireless communication system |
| 02/17/2005 | WO2005015769A2 Apparatus and methods for communicating using symbol modulated subcarriers |
| 02/17/2005 | WO2005015752A2 Noise shaped interpolator and decimator apparatus and method |
| 02/17/2005 | WO2005015748A1 Method and apparatus for varying lengths of low density parity check codewords |
| 02/17/2005 | WO2005015732A2 Method and apparatus for discrete power synthesis of multicarrier signals with constant envelope power amplifiers |
| 02/17/2005 | WO2004110010B1 Method for reducing the crest factor |
| 02/17/2005 | WO2004079978A3 Cost-effective multi-channel quadrature amplitude modulation |
| 02/17/2005 | US20050037722 Communication apparatus |
| 02/17/2005 | US20050037719 Information notification method, mobile communications system, base station, and mobile station |
| 02/17/2005 | US20050036633 Apparatus and method for reconstructing high frequency part of signal |
| 02/17/2005 | US20050036574 Automatic frequency control device and mehtod of QPSK modulation system |
| 02/17/2005 | US20050036572 Method of rate conversion together with I-Q mismatch correction and sampler phase adjustment in direct sampling based down-conversion |
| 02/17/2005 | US20050036571 System and method for low power clear channel assessment |
| 02/17/2005 | US20050036569 Perturbation and equalization method and system for multi-user detection |
| 02/17/2005 | US20050036568 Fast settling data slicer comprising a low-pass filter with switchable cut-off frequency and a notch-filter |
| 02/17/2005 | US20050036567 Voltage controlled oscillator (VCO) suitable for use in frequency shift keying (FSK) system |
| 02/17/2005 | US20050036564 Method for processing an OFDM signal |
| 02/17/2005 | US20050036563 Wireless communication system for multi-carrier transmission, transmitter, transmission method, receiver, and reception method |
| 02/17/2005 | US20050036562 Low voltage swing pad driver and receiver |
| 02/17/2005 | US20050036538 Method and apparatus for calculation of correction factors for path weights in a rake receiver |
| 02/17/2005 | US20050036514 Radio controlled clock and method for retrieving time information from time signals |
| 02/17/2005 | US20050036481 Hierarchical preamble constructions for OFDMA based on complementary sequences |
| 02/17/2005 | US20050036467 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones |
| 02/17/2005 | US20050036441 Methods and apparatus of power control in wireless communication systems |
| 02/17/2005 | US20050035885 Orthogonal preamble encoder, method of encoding orthogonal preambles and multiple-input, multiple-output communication system employing the same |
| 02/17/2005 | US20050035421 Compact imaging module |
| 02/17/2005 | DE102004036880A1 Verringerung des Impulsrauschens bei einem MCM-Signal Reduction of the impulse noise in a MCM signal |
| 02/16/2005 | EP1507379A2 A method and apparatus for transmitting data in a multiple carrier system |
| 02/16/2005 | EP1507378A1 Frame and frequency synchronization for OFDM |
| 02/16/2005 | EP1507377A1 Automatic frequency control with symbol error detection |
| 02/16/2005 | EP1507375A2 A feedback-type channel estimation method and a device based on a PN sequence and a pilot frequency in an OFDM system |
| 02/16/2005 | EP1507354A1 Communication system, receiver apparatus and communicating method |
| 02/16/2005 | EP1507339A1 Diversity receiver and receiving method |
| 02/16/2005 | EP1506655A1 Modified psk constellation to facilitate carrier recovery |
| 02/16/2005 | EP1506654A1 Method and device for estimating and compensating iq imbalance |
| 02/16/2005 | EP1506653A2 Time domain equalization using frequency domain operations |
| 02/16/2005 | EP1506652A1 Method and apparatus for a multiple modulation transmitter |
| 02/16/2005 | EP1506624A2 Apparatus and method of echo-cancellation |
| 02/16/2005 | CN1582578A Mapping system for transmission and reception of multiple data types |
| 02/16/2005 | CN1582557A DAT-aided frequency offset detection using phase unwrapping |
| 02/16/2005 | CN1582553A Wireless communication system configured to communicate using a mixed waveform configuration |
| 02/16/2005 | CN1582552A Method for physical layer automatic repeat request for a subscriber unit |
| 02/16/2005 | CN1582549A Compensation for non-linear distortion in a modem receiver |
| 02/16/2005 | CN1582544A Array processing for linear system solutions |
| 02/16/2005 | CN1582540A Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion |
| 02/16/2005 | CN1582538A Method for physical layer automatic repeat request for a subscriber unit |
| 02/16/2005 | CN1581914A Method for realizing official telephone of SDH device using IP telephone |
| 02/16/2005 | CN1581878A Device for producing signal in accordance with standard |
| 02/16/2005 | CN1581867A Method and system for realizing tracked interface message |
| 02/16/2005 | CN1581862A Receiving frequency compensating method for pi/4 four-phase differential phase-shift key-control modulating mode |
| 02/16/2005 | CN1581765A Method for processing an OFDM signal |
| 02/16/2005 | CN1581741A Sudden signal receiver |
| 02/16/2005 | CN1581740A Feedback type channel estimating method and device based on PN sequence and pilot frequency in OFDM system |
| 02/16/2005 | CN1581739A Subchannel access lead generating method for quadrature frequency division multiplexing communication system |
| 02/16/2005 | CN1581683A Automatic gain controlling circuit and method of receiver for mobile object |
| 02/16/2005 | CN1580982A Wireless timepiece |
| 02/16/2005 | CN1190061C Device and method for providing calling in loop trunk |
| 02/16/2005 | CN1190052C Direct digital synthesis in QAM demodulator |
| 02/16/2005 | CN1190051C Structure of up-link/down-link signals for interactive diugital information transmission and synchronous access method |
| 02/16/2005 | CN1190050C Radio receiving device and method of shared computer peripheral equipment |
| 02/16/2005 | CN1190019C Reception method and receiver array for a duplex transmission system |
| 02/16/2005 | CN1190015C 调谐器 Tuner |
| 02/15/2005 | US6856947 Optimised bit allocation adapted for VDSL |
| 02/15/2005 | US6856946 Passive impedance network for rotating a phase system |
| 02/15/2005 | US6856656 Iterative carrier phase tracking decoding system |
| 02/15/2005 | US6856648 Method and apparatus for equalizer updating and sampling rate control |
| 02/15/2005 | US6856206 Method and apparatus for acquiring a frequency without a reference clock |
| 02/15/2005 | CA2313817C Modulation method for transmitter |
| 02/15/2005 | CA2232898C Apparatus for receiving broadcasting signals |
| 02/15/2005 | CA2180258C A wireless digital synchronized diversity receiver |
| 02/14/2005 | CA2437927A1 Adaptive coding for a shared data communication channel |
| 02/10/2005 | WO2005013575A1 Weighting circuit for a multi-carrier signal receiver |
| 02/10/2005 | WO2005013525A1 Radio transmitter apparatus and modulation scheme selecting method |
| 02/10/2005 | WO2005013524A1 A method and device of the estimating carrier frequency offset of subscriber terminal |
| 02/10/2005 | WO2005013522A2 Method and apparatus providing adaptive learning in an adaptive orthogonal frequency division multiplex communication system |
| 02/10/2005 | WO2005013410A2 Enhanced holographic communications apparatus and method |
| 02/10/2005 | WO2004105283A3 Method and apparatus for odu to idu telemetry interface in vsat systems |
| 02/10/2005 | WO2004100423A3 Method and wireless device employing a preamble to initiate communications |
| 02/10/2005 | WO2004079969A3 Channel estimation based on an estimated channel delay spread |