Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 27 - Modulated-carrier systems
Patents for H04L 27 - Modulated-carrier systems (89,721)
09/2012
09/27/2012WO2012126200A1 Method and system for signal reception and method and system for signal transmission and reception
09/27/2012WO2012093899A3 Method of modulating signal for data communication and device thereof
09/27/2012US20120243878 Radio frequency and digital signal dual carrier mulitple modulation system
09/27/2012US20120243646 Frequency offset compensation apparatus
09/27/2012US20120243645 Digital receiver for reactive radio
09/27/2012US20120243644 Reception apparatus and reception method
09/27/2012US20120243643 Apparatus and method of differential iq frequency up-conversion
09/27/2012US20120243642 Apparatus for decoding global navigation satellite systems navigation data and associated method
09/27/2012US20120243641 Quadrature signal phase controller for controlling phase
09/27/2012US20120243640 Receiver
09/27/2012US20120243639 Data communication device, air pressure monitoring system using thereof, and data communication method
09/27/2012US20120243636 Semiconductor device and memory system
09/27/2012US20120243634 Dual Carrier Modulation
09/27/2012US20120243633 Data Encoding Based on Notch Filtering to Prevent Desense
09/27/2012US20120243629 Digital Communications Receiver
09/27/2012US20120243628 Reception device, reception method, and reception program
09/27/2012US20120243627 Adaptive power control data transmission system and methods
09/27/2012US20120243626 System access and synchronization methods for mimo ofdm communications systems and physical layer packet and preamble design
09/27/2012US20120243625 Treatment process of a multicarrier signal with filter banks for synchronisation by preamble
09/27/2012US20120243624 Transmission controlling method, sender apparatus and receiver apparatus for wireless communication system
09/27/2012US20120243623 Electronic assembly and operating method
09/27/2012US20120243622 Method and apparatus for improving the error rate of a serial/de-serial backplane connection
09/27/2012US20120243599 Pipelining and Sub-Rate Operation for Memory Links
09/27/2012US20120243597 Upstream frequency response measurement and characterization
09/27/2012US20120243596 Receiver and method
09/27/2012US20120243595 Method and system for providing phase reference signal
09/27/2012US20120243593 Receiving apparatus and receiving method
09/27/2012US20120243479 Radio communication apparatus
09/27/2012US20120243430 Downlink MCS Selection in a Type 2 Relay Network
09/27/2012US20120242528 Receiving apparatus and receiving method
09/26/2012EP2503750A1 Method for processing a multicarrier signal with arrays of filters for synchronisation by preamble
09/26/2012EP2503749A2 OFDM receiver and method
09/26/2012EP2503725A1 Apparatus and method for transmitting and receiving a broadcast signal
09/26/2012EP2503724A1 Apparatus and method for transmitting and receiving a broadcast signal
09/26/2012EP2502394A1 Reducing out-of-band emission
09/26/2012EP2502393A1 Phase offset compensator
09/26/2012EP2502370A1 Method of and equalizer for equalizing a radio frequency filter
09/26/2012EP2502366A1 Chromatic dispersion estimator and method for estimating a chromatic dispersion
09/26/2012EP2502360A1 Estimating residual carrier frequency offset in an ofdm signal
09/26/2012EP2502345A1 An adaptive digital pre-distortion method and device to enhance the power utility of power amplifiers in wireless digital communication applications
09/26/2012CN202455487U Optical packet switching node device based on OFDM (Orthogonal Frequency Division Multiplexing) subcarriers, and network
09/26/2012CN202455384U Transmitting device for automobile tire pressure monitoring system
09/26/2012CN1893412B Frequency extension of harmonic signals
09/26/2012CN1784877B Method and apparatus for synchronizing multi-level modulation signal
09/26/2012CN1762137B Multi-antenna communication systems utilizing rf-based and baseband signal weighting and combining
09/26/2012CN1515103B Blind detection
09/26/2012CN102696210A Multiple access system, method and device based on orthogonal frequency division multiplexing
09/26/2012CN102696208A Method for mapping and transmitting demodulation reference signal (DM-RS), communication terminal device using same, apparatus for transmitting DM-RS, and method for receiving DM-RS
09/26/2012CN102696207A Reducing phase errors on a communication device
09/26/2012CN102695210A Method and system for reverse load control of multi-carrier BE service
09/26/2012CN102695063A Method and device for eliminating simulation same frequency interference
09/26/2012CN102694765A Design method of non-2 integer power order QAM (quadrature amplitude modulation)
09/26/2012CN102694764A Methods and devices for sending and receiving digital audio signal in digital audio broadcasting system
09/26/2012CN102694763A Method for assessing integer frequency offset of TD-LTE system
09/26/2012CN102694762A Method for realizing synchronization of carrier and sampling clock, and user site device
09/26/2012CN102694761A Method and system for receiving signals and method and system for receiving and sending signals
09/26/2012CN102694760A Method for tuning digital compensation filter, and digital compensation filter
09/26/2012CN102694755A Method for standing wave detection
09/26/2012CN102694639A Multicarrier transmission mode based communication device and communication system
09/26/2012CN102694624A Self-adaptive code modulation method and device
09/26/2012CN102694593A Testing method of spectrum feature of optical passive device
09/26/2012CN102694587A Non-coherent detection method used in SM-OFDM (spatially-multiplexed-orthogonal frequency-division multiplexing) system
09/26/2012CN102694572A Frequency error detection apparatus
09/26/2012CN102694571A Method and system for estimating carrier frequency deviation
09/26/2012CN101868031B Radio communication apparatus and subcarrier assignment method
09/26/2012CN101860514B Unequal error protection method based on self-adaptive symbol carrier allocation
09/26/2012CN101815054B Digital communication system and method for improving flatness in signal band thereof
09/26/2012CN101690060B Apparatus and method for removing common phase error in a dvb-t/h receiver
09/26/2012CN101682591B Method of performing random access in a wireless communication system
09/26/2012CN101662440B Method and system to detect packets of different formats in a receiver
09/26/2012CN101656598B Information feedback method supporting multi-input multi-output double-stream mode and frame structure
09/26/2012CN101577564B Self-adaptive signal frequency spectrum sensing and detection method based on decision threshold
09/26/2012CN101542991B Methods for transmitting and receiving a multicarrier signal, carrying out a channel estimation, and corresponding devices and computer program products
09/26/2012CN101540749B Implementation method and device of pretreatment unit capable of being configured with length-variable DFT
09/26/2012CN101527914B Channel allocation method for resisting multi-user interference
09/26/2012CN101527701B Method for indicating 64QAM and transmitting data attribute in TD-SCDMA
09/26/2012CN101499817B Demodulation method and apparatus in synchronous CDMA receiving system
09/26/2012CN101405962B Apparatus and method for selecting modulation and filter roll-off to meet power and bandwidth requirements
09/26/2012CN101401317B High frequency circuit component and communication apparatus using such high frequency circuit component
09/26/2012CN101388700B Method and apparatus for adaptively selecting compression mode of channel quality indication information
09/26/2012CN101383798B Channel estimation method and system based on regulating factor
09/26/2012CN101374268B Method for implementing high speed multimedia broadcast technique of CDMA2000 system
09/26/2012CN101374013B Random access method base on frequency domain signal preprocess
09/26/2012CN101217525B A downlink frame synchronization method and device in orthogonal frequency division multiplexing system
09/26/2012CN101217340B Time-domain transmit and receive processing with channel eigen-mode decompositon for MIMO systems
09/26/2012CN101162961B Method and system of preventing co-channel interference
09/26/2012CN101019396B Detection of modulation type
09/25/2012US8276052 Iterative PRBS seed recovery using soft decisions
09/25/2012US8275341 Fixed point FIR filter with adaptive truncation and clipping and wireless mobile station using same
09/25/2012US8275340 Fixed point FIR filter with adaptive truncation and clipping and wireless mobile station using same
09/25/2012US8275339 Fixed point FIR filter with adaptive truncation and clipping and wireless mobile station using same
09/25/2012US8275081 Method and apparatus for providing carrier synchronization in digital broadcast and interactive systems
09/25/2012US8275077 Coherent demodulation of ais-GMSK signals in co-channel
09/25/2012US8275076 Receiver and method for detecting signal in multiple antenna system
09/25/2012US8275073 Methods and systems to discriminate between PSK and FSK signals
09/25/2012US8275071 Compact dual receiver architecture for point to point radio
09/25/2012US8275070 Apparatus and method of transmitting/receiving signals using signaling point rotation at mutual cooperation transmission
09/25/2012US8275069 Transmitting apparatus, transmission method and signal generating apparatus
09/25/2012US8275067 Adaptive turbo peak mitigation for peak-to-average ratio (PAR) reduction using reserved tones
09/25/2012US8275065 System and method for power saving coding in integer cycle or impulse type modulation transmissions
1 ... 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 ... 898