Patents for H04L 27 - Modulated-carrier systems (89,721) |
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02/10/2005 | US20050034053 Adaptive bit loading with low density parity check forward error correction |
02/10/2005 | US20050032524 System and method for discriminating radar transmissions from wireless network transmissions and wireless network having radar-avoidance capability |
02/10/2005 | US20050032514 Apparatus and associated methods to perform intelligent transmit power control with subcarrier puncturing |
02/10/2005 | US20050032496 Automatic gain control circuit for receive apparatus for mobile object |
02/10/2005 | US20050032483 Apparatus and method for transmitter phase shift compensation |
02/10/2005 | US20050032480 Digital filter for software-defined radio system, digital intermediate frequency signal processing apparatus having the digital filter, and method thereof |
02/10/2005 | US20050031105 FSK decoder for caller ID |
02/10/2005 | US20050031056 Dual signal correlation system |
02/10/2005 | US20050031054 Digital communication device and digital communication system |
02/10/2005 | US20050031052 Apparatus and method for synchronous demodulation |
02/10/2005 | US20050031049 Coding method and use of a receiver with a convolutional decoder |
02/10/2005 | US20050031048 Transmitter and method for digital multi-carrier transmission |
02/10/2005 | US20050031047 Adaptive multicarrier wireless communication system, apparatus and associated methods |
02/10/2005 | US20050031046 Multirate digital transceiver |
02/10/2005 | US20050031028 Method and apparatus for estimating the link quality of a communication channel |
02/10/2005 | US20050031023 Systems and methods for parallel signal cancellation |
02/10/2005 | US20050031018 Zero-padded OFDM with improved performance over multipath channels |
02/10/2005 | US20050030935 Method and device for the synchronization of radio stations and a time-synchronous radio bus system |
02/10/2005 | US20050030931 Apparatus and method for modulating ranging signals in a broadband wireless access communication system |
02/10/2005 | US20050030912 Use of hybrid (HW/DSP/MCU/SW) architectures for powerline OFDM communication field |
02/10/2005 | US20050030897 Transmission of data with feedback to the transmitter in a wireless local area network or the like |
02/10/2005 | US20050030891 Method and apparatus to select an adaptation technique in a wireless network |
02/10/2005 | US20050030888 Orthogonal frequency digital multiplexing correlation canceller |
02/10/2005 | US20050030887 Technique to select transmission parameters |
02/10/2005 | US20050030886 OFDM system and method employing OFDM symbols with known or information-containing prefixes |
02/10/2005 | US20050030885 Frequency offset differential pulse position modulation |
02/10/2005 | DE10334154A1 Anordnung und Verfahren für eine Synchrondemodulation Apparatus and method for a synchronous demodulation |
02/10/2005 | DE10331384A1 Method for transmission of information using electromagnetic waves, requires assigning logic value to electromagnetic wave transmitted within stated time period |
02/10/2005 | CA2534741A1 Enhanced holographic communications apparatus and method |
02/10/2005 | CA2532812A1 Digital authentication over acoustic channel |
02/09/2005 | EP1505787A2 Optimized synchronization preamble structure |
02/09/2005 | EP1505786A1 Method and device for estimating the frequency and/or the phase of a sequence of digital signals |
02/09/2005 | EP1505772A1 Detecting and avoiding radar interference in a WLAN 802.11a network |
02/09/2005 | EP1504601A2 Packet error signal generator |
02/09/2005 | EP1504596A2 High-resolution image projection |
02/09/2005 | EP1504579A1 Method and apparatus for reducing peak to average power ratio of a multi-carrier signal |
02/09/2005 | EP1504525A2 Method for producing a transmission signal |
02/09/2005 | EP1504524A2 Mirror suppression circuit in a quadrature demodulator |
02/09/2005 | EP1279238B1 Cdma system which uses pre-rotation before transmission |
02/09/2005 | EP1221233B1 Method and circuit for digitally correcting the frequency of a signal using the cordic algorithm |
02/09/2005 | EP1179901B1 Signal receiver and method of compensating frequency offset |
02/09/2005 | EP1177665A4 Method and apparatus for adaptively classifying a multi-level signal |
02/09/2005 | EP1031849A4 Device for receiving signals from satellite radio-navigation systems |
02/09/2005 | EP0886943B1 A method and apparatus for improved phase shift keyed (psk) signal demodulation |
02/09/2005 | CN1579063A Transmission signals, method and apparatus |
02/09/2005 | CN1579060A Transmitting/receiving apparatus and method for reducing papr in an OFDM mobile communication system |
02/09/2005 | CN1579054A Method and base station for providing phase-shift transmit diversity |
02/09/2005 | CN1578295A DC offset estimation and compensation in OFDM radio receivers |
02/09/2005 | CN1578294A Method and device for detecting synchronous signal |
02/09/2005 | CN1578293A False noise sequence detecting apparatus and method for quadrature frequency division multiplexing receiver |
02/09/2005 | CN1578292A Transmitting and receiving apparatus and method in an orthogonal frequency division multiplexing system |
02/09/2005 | CN1578291A Symbol timing recovering apparatus for quadrature frequency division multiplexing receiver |
02/09/2005 | CN1578290A System and method for channel estimation in an OFDM mobile communication system |
02/09/2005 | CN1578289A Receiving device with time-domain equalizer and receiving method thereof |
02/09/2005 | CN1578288A Quadrature frequency division multiplexing receiving device and receiving method thereof |
02/09/2005 | CN1578286A Method for ultra wideband communication using frequency band modulation, and system for the same |
02/09/2005 | CN1578210A Method for raising time measurement resolutuin ratio and positioning in block network through time modulation |
02/09/2005 | CN1578208A Method and device for allocating a communication signal to multiple carrier frequencies in a multi carrier communication scheme |
02/09/2005 | CN1578204A OFDM receiver and metric generator thereof |
02/09/2005 | CN1578203A 频差测量方法 Frequency difference measurement method |
02/09/2005 | CN1578189A Frequency offset detector for afc under rayleigh fading |
02/09/2005 | CN1578186A Power control method for remotely deployed communication service |
02/09/2005 | CN1578180A RF modem utilizing SAW device and pulse shaping |
02/09/2005 | CN1578178A Wideband quadrature generation technique requiring only narrowband components and method thereof |
02/09/2005 | CN1578115A Carrier detecting circuit and infrared communication device using same |
02/09/2005 | CN1578114A Modulation circuit device, modulation method and radio communication device |
02/09/2005 | CN1189050C Tone modem for data communication over digital wireless network |
02/09/2005 | CN1189001C Phase interpolation receiver for angle modulated RF signals |
02/09/2005 | CN1189000C Signalling transmission using phase rotation techniques in digital communications system |
02/09/2005 | CN1188979C FDD/TDD transceivers for wireless communication equipment |
02/09/2005 | CN1188973C System for transmitting high-speed added-value services in terrestrial digital radio broadcasting |
02/09/2005 | CN1188963C Spread spectrum signal receiving apparatus |
02/09/2005 | CN1188958C Multipath doppler-adjusted frequency tracking loop |
02/09/2005 | CN1188955C Receiver for receiving multiple overlapped extended spectrum signal and decoding at least one kind of them |
02/08/2005 | US6853836 Polar loop transmission circuit |
02/08/2005 | US6853695 System and method for deriving symbol timing |
02/08/2005 | US6853693 Method and apparatus for gain normalization of a correlation demodulator |
02/08/2005 | US6853692 Quadrature error reduction for QAM modulated up or down conversion |
02/08/2005 | US6853691 Vector modulator using amplitude invariant phase shifter |
02/08/2005 | US6853686 Frame formatting technique |
02/08/2005 | US6853674 Variable wavelength impulse transmission |
02/08/2005 | US6853632 Technique for peak power to average power ratio reduction in multicarrier communication systems |
02/08/2005 | US6853631 Code-division multiplex communication transmitting apparatus and receiving apparatus and method thereof |
02/08/2005 | US6853616 Orthogonal frequency division multiplexing receiver where FFT Window position recovery interlocks with sampling clock adjustment and method thereof |
02/08/2005 | US6853310 Tri-mode medical telemetry antenna system |
02/08/2005 | US6853255 AFC circuit compensating an error in oscillation frequency |
02/08/2005 | CA2437443A1 Dynamically tuned amplifier for frequency shift keyed signals |
02/08/2005 | CA2360266C Combined discrete automatic gain control (agc) and dc estimation |
02/08/2005 | CA2345823C Rendering multicast service with sufficient reception quality to wireless terminals |
02/08/2005 | CA2249981C Channel estimation arrangement |
02/07/2005 | CA2436338A1 Fm digital transmitter and fm digital transmitting method |
02/03/2005 | WO2005011226A1 Apparatus and method for multicarrier transmission / reception with transmission quality evaluation |
02/03/2005 | WO2005011225A2 Continuous phase frequency shift keying system |
02/03/2005 | WO2005011224A1 System and apparatus for encoding using different waveforms |
02/03/2005 | WO2005011223A1 Modulation device, demodulation device, modulation method, and demodulation method |
02/03/2005 | WO2005011172A1 Radio communication apparatus and radio communication method |
02/03/2005 | WO2005011168A1 Peak electric power suppressing apparatus and peak electric power suppressing method |
02/03/2005 | WO2005011167A1 Pilot multiplexing method and transmission/reception device in ofdm system |
02/03/2005 | WO2005011164A1 Reception device in communication system |
02/03/2005 | WO2005011144A2 Method and device for estimating a propagation channel of a multicarrier signal |