Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 1 - Frequency-division multiplex systems
Patents for H04J 1 - Frequency-division multiplex systems (15,293)
08/2003
08/12/2003CA2327785C Method and apparatus for fine frequency synchronization in multi-carrier demodulation systems
08/07/2003WO2003065704A1 Device and method for avoiding retraining processes in integrated voice and xdsl data transmission
08/07/2003WO2003065636A1 Zipper dmt system and method for measuring timing advance using the system
08/07/2003WO2003065211A1 Object- oriented framework for generic adaptive control
08/07/2003CA2473652A1 Object- oriented framework for generic adaptive control
08/06/2003CN1435069A Handoff method for digital base stations with different spectral capabilities
08/06/2003CN1117460C Echo phase offset correction for multi-carrier modulation and demodulation system
08/06/2003CN1117426C Multi-carrier transmitting apparatus and method
08/05/2003CA2328174C Frame structure and frame synchronization for multicarrier systems
07/2003
07/31/2003WO2003063465A2 System and method for transmitting audio or video data using multiple levels of protection
07/31/2003US20030144983 Object-oriented framework for generic adaptive control
07/30/2003CN1433168A Channel noise resisting balance method based on Walsh transformation for orthogonal frequency-division multiplexing system
07/29/2003US6600719 Method and apparatus for restoring a network
07/29/2003CA2126102C Frequency synchronized bidirectional radio system
07/24/2003WO2003061143A2 Coding a masked data channel in a radio signal
07/24/2003WO2003061134A1 Method and apparatus for optimizing dynamic range of a wideband analog-to-digital converter
07/23/2003EP1330093A2 Multiresolution transmission
07/23/2003EP1330092A2 Multiresolution transmission
07/23/2003EP1330090A2 Multiresolution transmission with multicarrier modulation
07/23/2003EP1330089A2 Multiresoltion transmission and error correction coding with multicarrier signals
07/23/2003EP1330088A2 Multiresolution transmission
07/23/2003EP1330063A1 Signal multiplexer
07/23/2003CN1432221A Method and appts. for controlling transmissions of communications system
07/23/2003CN1115904C Mobile communication system, communication control method, base station and mobile station therefor
07/23/2003CN1115890C Point-multipoint radio transmission system
07/22/2003US6597247 Circuit for the frequency multiplication of an angle modulated signal using a PLL and method
07/17/2003US20030133555 Apparatus and method for network-initiated real-time multi-party communications
07/16/2003CN1430848A Network combining wired and non-wired segments
07/16/2003CN1115005C Multi-carrier tansmission system and method thereof
07/10/2003US20030128667 Policing control method and apparatus, and network system using the policing control apparatus
07/09/2003CN1114331C Channel allocation method and circuit for testing trunk line in radio communication system
07/08/2003US6590871 Multi-carrier modulation apparatus and transmitter using the same
07/08/2003CA2281542C Method and apparatus for analyzing a composite carrier signal
07/03/2003WO2003055162A1 System and method for reducing noise induced by digital subscriber line (dsl) systems into services that are concurrently deployed on a communication line
07/03/2003WO2003055113A1 System and method of disharmonic frequency multiplexing
07/03/2003US20030123565 Radio communication method and apparatus
07/03/2003US20030123425 Method and apparatus for controlling transmissions of a communications system
07/02/2003EP1324543A1 Method to protect RPR networks of extended topology, in particular RPR ring to ring and meshed backbone networks
07/01/2003CA2301546C Apparatus and method for concurrent voice and data transmission
06/2003
06/26/2003WO2003053012A1 Polishing control method, its control device, and network system using the control device
06/26/2003US20030118057 Mobile communication system, communication control method, and base station and mobile station to be employed in the same
06/26/2003US20030118055 Use of phone - UART multiplexer to create low software overhead external access to internal data modem with wireless communications and phone
06/26/2003US20030117963 Method and apparatus for application driven adaptive duplexing of digital subscriber loops
06/26/2003US20030117946 Method to protect RPR networks of extended topology, in particular RPR ring-to-ring and meshed backbone networks, and relating RPR network
06/25/2003EP1322060A2 Adaptive duplexing of digital subscriber loops
06/25/2003CN1426171A Radio communication method and its device
06/25/2003CN1112794C Method and device for approximate frequency synchronization
06/25/2003CN1112781C Multi-carrier-wave transmission interleaving apparatus and method thereof
06/24/2003US6584068 Prototype signals construction for multicarrier transmission
06/19/2003WO2003050991A2 System and method for improving data transmission
06/19/2003WO2003050653A2 System and method for increasing data capacity in communication systems
06/19/2003US20030112758 Methods and systems for managing variable delays in packet transmission
06/19/2003US20030112747 Packet transmitter unit, packet receiver unit and packet transmission system
06/18/2003EP1320212A2 Frequency multiplexing with interference cancellation
06/17/2003US6580729 Signal multiplexer and method
06/12/2003WO2003049475A1 Flexible carrier utilisation
06/12/2003WO2003049323A1 Method of selecting a receiving path and receiving device comprising several receiving paths
06/12/2003US20030109284 Flexible carrier utilization
06/12/2003US20030108095 System and method for reducing noise induced by digital subscriber line (DSL) systems into services that are concurrently deployed on a communication line
06/12/2003US20030108065 System and method for increasing data capacity in communication systems
06/12/2003US20030108035 System and method for improving data transmission
06/11/2003EP1318612A2 Nonlinear compensating circuit, base-station apparatus, and transmission power clipping method
06/11/2003EP0799535B1 A practical means for digital generation and combination of a multiplicity of cdma/fdma signals
06/10/2003US6577847 Satellite communication system with multiple variable data rate carrier
06/05/2003WO2003024047A3 Reception of a plurality of phase-modulated signals
06/05/2003US20030105799 Distributed processing architecture with scalable processing layers
06/05/2003US20030104793 Nonlinear compensating circuit, base-station apparatus, and transmission power clipping method
06/05/2003US20030103455 Mechanism for implementing class redirection in a cluster
06/04/2003EP1316173A1 Apparatus for providing a multiple internet connection service using a hybrid fiber coaxial cable network
06/04/2003CN1422486A Packet transmitter unit, packet receiver unit and packet transmission system
06/04/2003CN1422019A Satellite live telecast system
06/04/2003CN1422018A Satellite live telecast system
06/04/2003CN1110916C Point-multi-point radio transmission system
05/2003
05/30/2003WO2003044979A1 Dynamic allocation of frequency spectrum
05/29/2003US20030099299 Method and apparatus for data transfer using a time division multiple frequency scheme
05/28/2003EP1314318A1 Transceiver applications in hfc networks
05/28/2003CN1421111A Method and apparatus using multi-carrier forward link in wireless communication system
05/22/2003WO2003043239A1 Methods and communications terminals for increasing capacity cdma communications networks
05/22/2003US20030097624 Remote module for a communications network
05/22/2003US20030096579 Wireless communication system
05/21/2003CN1419390A Method for making making GSM mobile telephone have intercom function
05/21/2003CN1419336A Frequency changing device
05/20/2003US6567519 System and method for processing an input signal communicated on a telephone line
05/20/2003US6567478 Radio apparatus having distortion compensating function
05/20/2003US6567416 Method for access control in a multiple access system for communications networks
05/20/2003US6567394 Non-contact IC card and system for performing data communication
05/20/2003US6567132 Upconverter for a television signal headend distribution center handling analog and digital signals and method of making and using the same
05/15/2003WO2003001710A3 Upstream communication system with controllable band pass filter properties
05/15/2003US20030093234 Fourier transform for timestamped network data
05/15/2003US20030092418 Frequency conversion apparatus
05/15/2003US20030092404 Transmission system, transmission method, transmission apparatus, and electronic recording medium having recorded therein transmission program
05/15/2003US20030091018 Methods and communications terminals for increasing capacity CDMA communications nerworks
05/14/2003EP1311074A1 Transmission system estimating radio link characteristics in a multicarrier CDMA system
05/14/2003EP1311071A2 Frequency conversion apparatus
05/14/2003EP0774181B1 Wideband fft channelizer
05/14/2003CN1417966A Transmission system, transmission method, transmission equipment and medium for recording transmitting program
05/13/2003US6563859 Receiver and receiving method in multi-carrier spread-spectrum communications
05/08/2003WO2003039036A1 Multi-channel broadband content distribution system
05/08/2003WO2003038820A1 Data-update apparatus, reproduction apparatus, data-addition apparatus, data-detection apparatus and data-removal apparatus
05/08/2003WO2003038641A1 Admission control system for home video servers
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