H04J - Multiplex communication

More topics under "H04J - Multiplex communication" (162,303)
H04J 1 - Frequency-division multiplex systems (15,293)
H04J 11 - Orthogonal multiplex systems (25,498)
H04J 13 - Code division multiplex systems (21,510)
H04J 14 - Optical multiplex systems (27,009)
H04J 3 - Time-division multiplex systems (63,408)
H04J 4 - Combined time-division and frequency-division multiplex systems (1,442)
H04J 7 - Multiplex systems in which the amplitudes or durations of the signals in individual channels are characteristic of those channels (369)
H04J 9 - Multiplex systems in which each channel is represented by a different type of modulation of the carrier (524)
H04J 99 - Subject matter not provided for in other groups of this subclass (7,250)

Patents for H04J - Multiplex communication (421)
06/2005
06/22/2005	EP1545092A2 Method for recording and replaying audio and video data transmitted over a computer network
06/16/2005	WO2005022795A3 Advanced, self-balancing video multiplexer system
06/16/2005	US20050128935 Method and apparatus providing decentralized, goal-orientated adaptive learning in an adaptive orthogonal frequency division multiplex communication system
06/09/2005	WO2004107616A3 System and method of optical data communication with multiple simultaneous emitters and receivers
06/02/2005	WO2005022796A3 Advanced, adaptive video multiplexer system
06/02/2005	US20050117729 Methods and systems for a call log
05/2005
05/12/2005	WO2005006617A3 Method and apparatus for providing forward error correction
05/06/2005	WO2004056022A3 Apparatus and method for signal constitution for downlink of ofdma-based cellular system
04/2005
04/27/2005	EP1108239B1 Communication management system for computer network-based telephones
04/21/2005	WO2005036787A2 Method for supporting a plurality of subscribers operating on different frequency bands using a single access point
04/07/2005	US20050073969 Method and apparatus for supporting a reduced resource dormant state for packet data
03/2005
03/31/2005	WO2005029738A2 Method and apparatus for synchronizing audio and video in encrypted videoconferences
03/24/2005	US20050063349 Method for supporting a plurality of subscribers operating on different frequency bands using a single access point
03/24/2005	US20050063298 Synchronization in a broadcast OFDM system using time division multiplexed pilots
03/22/2005	US6870358 Methods and apparatuses for peak detection among multiple signals
03/17/2005	WO2004066527A3 Electronic mail systems and electronic mail systems accessible from multiple devices
03/17/2005	US20050058287 Method and apparatus for synchronizing audio and video in encrypted videoconferences
03/10/2005	WO2005022892A2 Video multiplexer system providing low-latency vcr-like effects and program changes
03/10/2005	WO2005022797A2 Synchronization in a broadcast ofdm system using time division multiplexed pilots
03/10/2005	WO2005022796A2 Advanced, adaptive video multiplexer system
03/10/2005	WO2005022795A2 Advanced, self-balancing video multiplexer system
03/10/2005	WO2005022794A2 Combined inverse fast fourier transform and guard interval processing for efficient implementation of ofdm based systems
03/10/2005	WO2005022793A2 Multi-purpose network diagnostic modules
03/10/2005	WO2005022792A2 Method of constructing wireless network for orthogonal frequency division multiplex and terminal employing ofdma method
03/10/2005	US20050053220 Methods and systems for directory information lookup
03/10/2005	US20050053217 Methods and systems for remote call establishment
03/10/2005	US20050053214 Methods and systems for conference call buffering
03/10/2005	US20050053086 Method and system for authenticated fast channel change of media provided over a DSL connection
03/10/2005	CA2537294A1 Video multiplexer system providing low-latency vcr-like effects and program changes
03/10/2005	CA2537293A1 Advanced, adaptive video multiplexer system
03/10/2005	CA2537280A1 Advanced, self-balancing video multiplexer system
03/10/2005	CA2537267A1 Synchronization in a broadcast ofdm system using time division multiplexed pilots
03/03/2005	WO2004088888A3 Method and system for increasing audio perceptual tone alerts
03/03/2005	US20050050190 Multi-purpose network diagnostic modules
03/03/2005	US20050047325 Combined inverse fast fourier transform and guard interval processing for efficient implementation of OFDM based systems
03/02/2005	EP1510025A2 Apparatus for redundant multiplexing and remultiplexing of program streams and best effort data
02/2005
02/10/2005	WO2004070978A3 Laser power grid
02/03/2005	US20050025220 Methods for generating and transmitting frequency hopped signals
01/2005
01/27/2005	WO2005008930A2 Methods for generating and transmitting frequency hopped signals
01/27/2005	CA2534988A1 Methods for generating and transmitting frequency hopped signals
01/20/2005	WO2005006617A2 Method and apparatus for providing forward error correction
01/13/2005	WO2005004363A1 Use of polarization for differentiation of information
01/12/2005	CN1184758C Transmitting device and method providing medium
01/06/2005	US20050002416 Method and apparatus for providing forward error correction
12/2004
12/30/2004	US20040264654 Methods and systems for notification of call to device
12/29/2004	WO2004114560A2 Generating a spectrally efficient root raised cosine pulse
12/29/2004	WO2004114559A2 A system and method for generating a modified iota pulse for reducing adjacent channel interference (aci)
12/29/2004	WO2004114558A2 A system and method for generating a root raised cosine orthogonal frequency division multiplexing (rrc ofdm) modulation
12/23/2004	WO2004112290A2 Receiving system for video conferencing system
12/16/2004	US20040254982 Receiving system for video conferencing system
12/16/2004	US20040252781 System and method for generating a spectral efficient root raised cosine (RRC) pulse for increasing spectral efficiency
12/16/2004	US20040252775 System and method for generating a root raised cosine orthogonal frequency division multiplexing (RRC OFDM) modulation
12/16/2004	US20040252774 System and method for generating a modified IOTA pulse for reducing adjacent channel interference (ACI) in an isotropic orthogonal transfer algorithm (IOTA) orthogonal frequency division multiplexing (OFDM) system
12/09/2004	WO2004107627A1 A method for conveying management information
12/09/2004	WO2004107616A2 System and method of optical data communication with multiple simultaneous emitters and receivers
12/09/2004	CA2526463A1 A method for conveying management information
12/08/2004	EP1483856A2 Near-field spatial multiplexing
12/02/2004	WO2004084446A3 Shared path protection method and system
12/01/2004	EP1481501A2 Authenticated change of media provided over a dsl connection
11/2004
11/25/2004	WO2004077707A3 Method and apparatus for supporting a reduced resource dormant state for packet data
11/25/2004	US20040234268 System and method of optical data communication with multiple simultaneous emitters and receivers
11/18/2004	WO2004064277A3 Video network
10/2004
10/28/2004	US20040216024 Methods and apparatus for interleaving in a block-coherent communication system
10/28/2004	US20040213212 Methods and systems for automatic communication line management based on device location
10/21/2004	WO2004091249A1 A method in a transceiver for allocating transmission capacity between the two directions of transmission in wire line data communication
10/21/2004	WO2004091125A2 Methods and apparatus for interleaving in a block-coherent communication system
10/21/2004	WO2004070979A3 Ofdm communication device
10/21/2004	CA2521041A1 Methods and apparatus for interleaving in a block-coherent communication system
10/14/2004	WO2004088888A2 Method and system for increasing audio perceptual tone alerts
10/13/2004	EP0872061B1 A data transmission method, and a cellular radio system
09/2004
09/30/2004	WO2004084446A2 Shared path protection method and system
09/16/2004	WO2004049615A3 Methods and systems for automatic forwarding of communications to a preferred device
09/16/2004	US20040179472 Shared path protection method and system
09/15/2004	EP1074119B1 Method and arrangement related to synchronous switching
09/10/2004	WO2004077707A2 Method and apparatus for supporting a reduced resource dormant state for packet data
09/09/2004	US20040176919 Methods and apparatuses for peak detection among multiple signals
09/01/2004	EP0783811B1 Data transmission method in a tdma mobile communication system
08/2004
08/26/2004	WO2004049614A3 Methods and systems for call management with user intervention
08/26/2004	WO2004049608A3 Methods and systems for conference call buffering
08/19/2004	WO2004070979A2 Ofdm communication device
08/19/2004	WO2004070978A2 Laser power grid
08/19/2004	WO2004049676A3 Methods and systems for remote call establishment
08/19/2004	WO2004049130A3 Methods and systems for directory information lookup
08/11/2004	CN1161902C Data transmssion method in TDMA mobile communication system
08/05/2004	WO2004066527A2 Electronic mail systems and electronic mail systems accessible from multiple devices
08/05/2004	WO2004049677A3 Methods and systems for computer enhanced conference calling
08/05/2004	WO2004049132A3 Method and apparatus for adaptive message notification
08/05/2004	WO2004038969A3 Proximity-based automatic id code reconfiguration of wireless input/output systems
08/05/2004	US20040153483 Mail system synchronization
07/2004
07/29/2004	WO2004064277A2 Video network
07/22/2004	WO2004049121A3 Methods and systems for automatic communication line management based on device location
07/13/2004	US6763019 Method and system for authenticated fast channel change of media provided over a DSL connection
07/06/2004	US6760137 Wave division multiplexing communications system
07/01/2004	WO2004056022A2 Apparatus and method for signal constitution for downlink of ofdma-based cellular system
07/01/2004	WO2004049136A3 Methods and systems for a call log
06/2004
06/10/2004	WO2004049686A1 Methods and systems for notification of call to device
06/10/2004	WO2004049685A1 Methods and systems for cpn triggered collaboration
06/10/2004	WO2004049680A1 Methods and systems for line management
06/10/2004	WO2004049679A1 Method and systems for single number text messaging
06/10/2004	WO2004049678A1 Methods and systems for preemptive rejection of calls

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