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)
03/2009
03/04/2009CN100466544C Method for reporting board performance data of equipment
03/04/2009CN100466543C Method and system for universally managing multiple functional units
03/04/2009CN100466542C Service gradation based loss distribution method
03/04/2009CN100466540C State detection method based on main and backup Ethernet interface
03/04/2009CN100466539C Maintenance method for device terminal
03/04/2009CN100466538C Method and apparatus for changing the operation mode of an agent of a management network
03/04/2009CN100466536C System and method for managing protocol network failures in a cluster system
03/04/2009CN100466535C Device and method for implementing switch between IP network and PSTN for users
03/04/2009CN100466534C Method for processing faults in multimedia sub-system equipment
03/04/2009CN100466532C Set-up method and its system for broadcast multi-cast service transmission mode
03/04/2009CN100466531C Control system and method for multi-party demonstration manuscript conference
03/04/2009CN100466530C Method and device for connecting a plurality of conferences
03/04/2009CN100466528C Interconnected network web information issuing method
03/04/2009CN100466527C Communication apparatus
03/04/2009CN100466525C Buffer-based magnitude charging middle message processing method
03/04/2009CN100466524C On-line controlling method and system
03/04/2009CN100466522C Farend access communication system, and control method
03/04/2009CN100466521C Flame-proof and intrinsically safe type industrial Ethernet ring exchanger for mine
03/04/2009CN100466519C Method for downloading a plurality of files simultaneously in broadcasting network
03/04/2009CN100466518C Communication apparatus and communication method
03/04/2009CN100466516C Biological identifying method for resisting replay attach
03/04/2009CN100466515C Method for establishing interaction between conversation business mark and network application entity
03/04/2009CN100466513C System and method for protecting received and sent data by parity check bit
03/04/2009CN100466512C Encryption device and program and data processing method used on data processing equipment
03/04/2009CN100466510C A method for preventing network address translation (NAT) device from being attacked by network user
03/04/2009CN100466509C Information content distribution method based on private and/or personal information
03/04/2009CN100466508C Automatic equalization system
03/04/2009CN100466507C Method and device for connecting sensors or actuators to a bus system
03/04/2009CN100466506C Data transmission method
03/04/2009CN100466504C Read enable generator, read enable signal generating method and data transmission method
03/04/2009CN100466503C Receiving diversity apparatus and method of mobile station for high data rate type mobile communication system
03/04/2009CN100466501C Method for producing long code mask for cluster service
03/04/2009CN100466500C Method for generating orthogonal spectrum-spreading code in mobile communication system
03/04/2009CN100466498C Method and equipment for reaching synchronization to base station
03/04/2009CN100466497C Telecommunication system and method for transmitting signal in the telecommunication system
03/04/2009CN100466495C System and method for avoiding time wasting using timer for high-speed downlink packet access system
03/04/2009CN100466493C Method and apparatus for forward link gain control in a power controlled repeater
03/04/2009CN100466491C Mobile satellite multi-protocol tag exchange network system and the operation method thereof
03/04/2009CN100466490C Demultiplexer for channel interleaving
03/04/2009CN100466489C Demultiplexer for channel interleaving
03/04/2009CN100466461C Slicing algorithm for multi-level modulation equalizing schemes
03/04/2009CN100465905C Non-contacting intelligent card emulator
03/03/2009US7499696 Method to optimize hierarchical modulation for a diversity system
03/03/2009US7499672 Wireless communication system
03/03/2009US7499509 Receiver for compensating nonlinearly distorted multicarrier signals
03/03/2009US7499508 Method and apparatus for adjusting the gain of an if amplifier in a communication system
03/03/2009US7499507 Synchronization module using a Viterbi slicer for a turbo decoder
03/03/2009US7499506 Detection of signal modulation format type
03/03/2009US7499505 Trellis decoding with finite constellation boundaries
03/03/2009US7499504 Method for determining multiple-input multiple-output (MIMO) channel coefficient using polarity-inverted training signals in an orthogonal frequency division multiplexed (OFDM) multicarrier system
03/03/2009US7499503 Parallel concatenated code with soft-in soft-out interactive turbo decoder
03/03/2009US7499502 Amplifier, information communication apparatus and amplification method
03/03/2009US7499500 Data communication system, method and apparatus for communicating a data signal formed of successive data elements
03/03/2009US7499499 Method for multiple antenna transmission
03/03/2009US7499498 Hybrid memory architecture for reduced state sequence estimation (RSSE) techniques
03/03/2009US7499496 Transmitter and transmission controlling method
03/03/2009US7498935 Power-line carrier communication apparatus
02/2009
02/26/2009WO2009026400A1 System and method for distributed input distributed output wireless communications
02/26/2009WO2009025934A1 Gmsk-receiver with interference cancellation
02/26/2009WO2009025883A1 Demodulator system and method using multilevel differential phase shift keying
02/26/2009WO2009025495A2 Method and apparatus for circular buffer-based rate matching and burst multiplexing for packet data transmission in a communication system
02/26/2009WO2009025493A2 Method for transmitting/receiving data in multiple-input multiple-output system using multi-carrier
02/26/2009WO2009008805A3 Setting maximum power at a mobile communication system base station having multiple antennas
02/26/2009WO2008157799A3 Adaptive distributed frequency planning
02/26/2009WO2008145915A3 Compound for processing a digital signal, and corresponding modulation and/or demodulation device, modulation and/or demodulation method and computer software
02/26/2009WO2008070068A9 Method and apparatus of enabling multi band transmission
02/26/2009US20090055711 Digital broadcasting transmission/reception system utilizing mull packet and trs code to improve receiving performance and signal processing method thereof
02/26/2009US20090052600 Clock and data recovery circuits
02/26/2009US20090052598 Method and device for providing timing information in a wireless communication system
02/26/2009US20090052596 Decoder and decoding method
02/26/2009US20090052595 Method of evaluating a readout signal, and optical disc apparatus
02/26/2009US20090052594 Robust joint erasure marking viterbi algorithm decoder
02/26/2009US20090052593 Log likelihood ratio calculation method, transmit signal detection method, and receiver
02/26/2009US20090052592 Method and Arrangement for Recovering a Binary DC-Free Code From a Frequency Modulated Signal
02/26/2009US20090052590 Layered modulation for digital signals
02/26/2009US20090052589 Transport stream generating device, transmitting device, receiving device, and a digital broadcast system having the same, and method thereof
02/26/2009US20090052588 Apparatus and Method for Sensing an Atsc Signal in Low Signal-to-Noise Ratio
02/26/2009US20090052587 Digital broadcasting system and method of processing data in digital broadcasting system
02/26/2009US20090052586 Pulse receiving circuit, pulse receiving method and pulse wireless communication device
02/26/2009US20090052585 Digital broadcasting system and data processing method
02/26/2009US20090052582 Method for improving the performance of ofdm receiver and a receiver using the method
02/26/2009US20090052581 Digital broadcasting system and method of processing data in digital broadcasting system
02/26/2009US20090052580 Digital broadcasting system and method of processing data in digital broadcasting system
02/26/2009US20090052579 Digital broadcasting system and method of processing data in digital broadcasting system
02/26/2009US20090052578 Wireless communication system, wireless communication device, and wireless communication method
02/26/2009US20090052577 Peak to average power ratio reduction
02/26/2009US20090052576 Data transmissions in a mobile communication system employing diversity and constellation rearrangement of a 16 qam scheme
02/26/2009US20090052573 Method and apparatus for forward link power control
02/26/2009US20090052572 Method and System for Transmitting Signals with Reduced Spurious Emissions
02/26/2009US20090052568 Qam communication system and method thereof and qam receiving apparatus and method thereof
02/26/2009US20090052567 Synchronization sequence with tone notching in ofdm systems
02/26/2009US20090052566 Method for channel estimation using recursive filtering and multicarrier receiver with interference-aware demodulation
02/26/2009US20090052565 Turbo channel estimation for ofdm systems
02/26/2009US20090052564 Receiving apparatus and receiving method
02/26/2009US20090052563 Decoding apparatus and decoding method
02/26/2009US20090052562 Correlation calculation unit and correlation calculation apparatus
02/26/2009US20090052561 Methods and apparatus for generating and communicating wireless signals having pilot signals with variable pilot signal parameters
02/26/2009US20090052560 Transmission method and transmission apparatus used in multiantenna wireless communication system
02/26/2009US20090052547 Digital broadcasting transmission/reception system utilizing mull packet and trs code to improve receiving performance and signal processing method thereof
02/26/2009US20090052523 Digital broadcasting transmitter, turbo stream processing method thereof, and digital broadcasting system having the same
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