| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 12/19/2012 | CN102833759A Cognitive radio spectrum allocation method enabling OFDM (orthogonal frequency division multiplexing) master user to realize maximum revenue |
| 12/19/2012 | CN102833587A Transmission and receiving apparatus and method in multi carrier transmission system |
| 12/19/2012 | CN102833210A AM/Chirp modulation, realizing device thereof and emergency broadcast and communication system based on common AM/Chirp modulation |
| 12/19/2012 | CN102833209A CDMA (code division multiple access) communication method |
| 12/19/2012 | CN102833208A Enhanced block scrambling code division multiple access (BSCDMA) method |
| 12/19/2012 | CN102833207A Channel measuring method and channel measuring device applied to OFDM (Orthogonal Frequency Division Multiplexing) system |
| 12/19/2012 | CN102833206A Polarization multiplexing band interpolation based OFDMA-PON (orthogonal frequency division multiple access-passive optical network) system |
| 12/19/2012 | CN102833205A Method for demodulating non-equidistant differential quadrature phase shift keying (DQPSK) coupling interference signal |
| 12/19/2012 | CN102833204A Frequency offset estimation implementation method |
| 12/19/2012 | CN102833203A System and method for self-adaptive synchronous alignment of IQ (in-phase and quadrature) modulation signals at sending end |
| 12/19/2012 | CN102833202A Method and device for directly modulating X-waveband of satellite-borne transmitter |
| 12/19/2012 | CN102833201A Highway addressable remote transducer (HART) modem based on singlechip, and implementation method thereof |
| 12/19/2012 | CN102833195A Method for estimating interference and noise power in LTE (Long Term Evolution)/LTE-A (Long Term Evolution-Advanced) system |
| 12/19/2012 | CN102833194A OFDM (orthogonal frequency division multiplexing) channel estimation method based on symmetrical basis expansion model for quick time-varying channel |
| 12/19/2012 | CN102833058A Pilot frequency design method based on sparse channel estimation in cognitive radio |
| 12/19/2012 | CN102833057A Multi-user OFDM (orthogonal frequency division multiplexing) resource allocation method |
| 12/19/2012 | CN102833049A MIMO system with multiple spatial multiplexing modes |
| 12/19/2012 | CN102833034A Method and device for determining modulation and coding scheme (MCS) |
| 12/19/2012 | CN102833031A Reconfigurable optical add-drop multiplexer on basis of OFDMA (Orthogonal Frequency Division Modulation) |
| 12/19/2012 | CN102833012A Downlink and uplink digital intermediate-frequency self-check method in multi-carrier transmitting system |
| 12/19/2012 | CN102833007A Differential phase-shift key-control demodulator |
| 12/19/2012 | CN102832970A Power line state monitoring method and device |
| 12/19/2012 | CN102832964A Multi-band DS-MFSK (Direct Sequence-Multi Frequency Shift Keying) modem |
| 12/19/2012 | CN102014093B Extended binary phase shift keying (EBPSK) modem and implementation method thereof |
| 12/19/2012 | CN101945070B Method and device for measuring noise |
| 12/19/2012 | CN101938518B Data link layer protocol of low voltage power line spread-frequency communication |
| 12/19/2012 | CN101924720B Sub-carrier processing method, device and system |
| 12/19/2012 | CN101917376B Two-stage frequency conversion method for digital down conversion system in multi-carrier digital receiver |
| 12/19/2012 | CN101902426B Method and device for realizing decimal frequency deviation estimation |
| 12/19/2012 | CN101902423B Alternate binary offset carrier (AltBOC) signal acquisition device |
| 12/19/2012 | CN101854323B Method and system for calibrating antenna |
| 12/19/2012 | CN101843061B A method to discriminate a real echo peak from an aliased echo peak |
| 12/19/2012 | CN101789920B Method and system for realizing self-adaptive predistortion power amplifier linearization |
| 12/19/2012 | CN101777939B DDS-based Doppler compensation device in real-time water sound communication |
| 12/19/2012 | CN101764778B Base band processor and base band processing method |
| 12/19/2012 | CN101754054B Method, device and system for treating business transmission |
| 12/19/2012 | CN101753507B Information sending method, business handling method, system, base station and mobile station |
| 12/19/2012 | CN101753263B System and method for appling QC-LDPC codes |
| 12/19/2012 | CN101741785B Methods and system for recognizing random access pulse signals |
| 12/19/2012 | CN101729479B Blind channel estimation method based on cyclostationarity of OFDM signals |
| 12/19/2012 | CN101729169B Method and device for transmitting and receiving multimedia data |
| 12/19/2012 | CN101616105B Method for estimating channel of orthogonal frequency division multiplexing system |
| 12/19/2012 | CN101610132B Method for realizing downlink control channel in wireless communication system |
| 12/19/2012 | CN101594336B Method for sending positioning reference signals |
| 12/19/2012 | CN101588336B Method, system and device for realizing symbol synchronization |
| 12/19/2012 | CN101552764B Communication time synchronization system and method based on OFDM |
| 12/19/2012 | CN101540623B Method for initial cell search in TD-SCDMA system and device therefor |
| 12/19/2012 | CN101534273B Method, device and system for optimizing transmission speed in DSL system |
| 12/19/2012 | CN101534176B Self-adaptive antenna mode control method and device thereof |
| 12/19/2012 | CN101515821B Channel allocation method and interaction method in large-bandwidth orthogonal frequency division multiplexing system |
| 12/19/2012 | CN101499985B Scramble notification method and apparatus used in public control logic channel |
| 12/19/2012 | CN101478515B Amplitude offset key system demodulator and wireless radio frequency identification system |
| 12/19/2012 | CN101465836B Communication system and parameter estimation method |
| 12/19/2012 | CN101453582B Signal frame configuration for broadcast signal and detection method for signal frame header |
| 12/19/2012 | CN101425831B 无线分组通信方法 Wireless packet communication method |
| 12/19/2012 | CN101388867B Resource scheduling method based on OFDM system |
| 12/19/2012 | CN101322370B Orthogonal demodulation device, orthogonal demodulation method |
| 12/19/2012 | CN101286773B Transmitting device for data modulated by space-time block code with MIMO and method thereof |
| 12/19/2012 | CN101141159B Method and apparatus for reception of long range signals in bluetooth |
| 12/19/2012 | CN101098215B Method and apparatus for computing soft decision input metrics to a turbo decoder |
| 12/19/2012 | CN101094022B Transmitter, communication system, and communication method |
| 12/18/2012 | US8335289 Apparatus and method for detecting impulse signal and impulse sequence |
| 12/18/2012 | US8335282 Method for implementing an equalizer of an OFDM baseband receiver |
| 12/18/2012 | US8335281 Diversity receiving apparatus and diversity receiving method |
| 12/18/2012 | US8335279 Alignment of channel filters for multiple-tuner apparatuses |
| 12/18/2012 | US8335277 Method and apparatus for checking asynchronous transmission of control signals |
| 12/18/2012 | US8335276 Method and apparatus for transmitting and receiving uplink channel sounding reference signals in a wireless communication system |
| 12/18/2012 | US8335274 Precoder for spatial multiplexing, multiple antenna transmitter |
| 12/18/2012 | US8335269 Apparatus for receiving signals in a communication system based on multicarrier transmission and method for interference cancellation |
| 12/18/2012 | US8335268 Signal transmission system using multiple antenna and signal transmission method thereof |
| 12/18/2012 | US8335225 OFDM communication system and method having a reduced peak-to-average power ratio |
| 12/18/2012 | US8335153 Orthogonal frequency division multiplex modem circuit |
| 12/18/2012 | CA2674421C Pilot structure with multiplexed unicast and sfn transmissions |
| 12/18/2012 | CA2619638C Code design and implementation improvements for low density parity check codes for wireless routers using 802.11n protocol |
| 12/18/2012 | CA2543646C Apparatus and method of on-channel repeater |
| 12/18/2012 | CA2461055C Digital transmission system with enhanced data multiplexing in vsb transmission system |
| 12/13/2012 | WO2012170983A2 Distributed antenna system interface for processing digital signals in a standardized format |
| 12/13/2012 | WO2012170365A2 Tracking loop design for unicast and multicast/broadcast signals |
| 12/13/2012 | WO2012169744A2 Method and device for information transmission in wireless communication system |
| 12/13/2012 | WO2012167823A1 Joint carrier recovery for mimo systems |
| 12/13/2012 | WO2012167551A1 Method, device and system for transmitting service data on optical transport network |
| 12/13/2012 | US20120314821 Automatic gain control device for satellite positioning receivers |
| 12/13/2012 | US20120314820 High-Performance Orthogonal Frequency Division Multiplexing Receiver |
| 12/13/2012 | US20120314819 System and method for radio signal reconstruction using signal processor |
| 12/13/2012 | US20120314818 Digital communications receiver and method of estimating residual carrier frequency offset in a received signal |
| 12/13/2012 | US20120314816 Envelope detector and associated method |
| 12/13/2012 | US20120314815 Method and Receiving Unit for the Detection of Data Symbols |
| 12/13/2012 | US20120314814 Phase offset compensator |
| 12/13/2012 | US20120314812 PHY sub-channel processing |
| 12/13/2012 | US20120314811 Apparatus and method for a wideband rf mixer |
| 12/13/2012 | US20120314809 Transmission method, transmission apparatus, reception method, and reception apparatus |
| 12/13/2012 | US20120314808 Precoding weight generation method, mobile station apparatus and base station apparatus |
| 12/13/2012 | US20120314805 Wireless transmitting apparatus, wireless receiving apparatus, wireless communication system, wireless transmitting method and wireless receiving method |
| 12/13/2012 | US20120314804 Processing of Multi-Carrier Signals Before Power Amplifier Amplification |
| 12/13/2012 | US20120314803 Transmitting apparatus, transmission method, receiving apparatus, and receiving method |
| 12/13/2012 | US20120314802 Transmitter and method for transmitting data block in wireless communication system |
| 12/13/2012 | US20120314801 Transmitter and method for transmitting data block in wireless communication system |
| 12/13/2012 | US20120314800 Transmitter |
| 12/13/2012 | US20120314799 Method and apparatus providing protection and dc balance in a communication system |
| 12/13/2012 | US20120314798 Closed Loop Precoding Weight Estimation |