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Multiplex Communications > Duplex DuplexDuplex patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.01/17/08 - 20080013467 - Passive network tap with digital signal processing for separating signals A passive full-duplex bidirectional ZPL tap includes first and second network ports and tap ports. A signal separator is configured to receive a data stream from at least one of the first or second network ports and pass through the data stream and configured to obtain a first signal portion ... 11/22/07 - 20070268844 - Controlling the state of duplexing of coupling facility structures A coupling facility is coupled to one or more other coupling facilities via one or more peer links. The coupling of the facilities enables various functions to be supported, including the duplexing of structures of the coupling facilities. Duplexing is performed on a structure basis, and thus, a coupling facility ... 11/01/07 - 20070253349 - Passive network tap with bidirectional coupler and associated splitting methods The principles of the present invention relate to passive full-duplex bidirectional Zero Packet Loss (ZPL) network taps that include single, dual, or dual differential couplers that are placed in the communication path between two network devices that communicate using a full-duplex bidirectional data stream that include a first and a ... 08/23/07 - 20070195719 - Local area network of serial intelligent cells A serial intelligent cell (SIC) and a connection topology for local area networks using Electrically-conducting media. A local area network can be configured from a plurality of SIC's interconnected so that all communications between two adjacent SIC's is both point-to-point and bidirectional. Each SIC can be connected to one or ... 05/24/07 - 20070115863 - Dualduplexer having matrix structure and method for forming the same The present invention relates to a dualduplexer having a matrix structure and a fabrication method thereof. The dualduplexer includes a dualduplexing block which uses the transmitting input unit, the receiving input unit, the transmitting output unit and the receiving output unit in common, wherein the transmitting input unit, the receiving ... 05/10/07 - 20070104121 - Method and system for providing a push-to-talk communication session A method for providing a push-to-talk communication session includes facilitating a push-to-talk communication session among a full duplex endpoint supporting simultaneous two-way communication and a plurality of half duplex endpoints. Communications are received from and transmitted to the full duplex endpoint along a two-way communications path. The method includes blocking ... 05/03/07 - 20070097887 - Communication method and system using time division duplex scheme and frequency division duplex scheme A communication method in a communication system includes a base station that transmits downlink information to a terminal through a frequency band of a first communication scheme for a downlink period. The terminal transmits uplink information to the base station through the frequency band of the first communication scheme or ... 03/01/07 - 20070047473 - Pcm type interface An interface device having a first and second data terminal configured for the communication of data in duplex mode, with one of the first and second data terminals always assigned to each direction of the communication, the first and second data terminals configurable during operation such that, in a first ... 02/01/07 - 20070025280 - Bidirectional data transmission for low-speed and high-speed communications A bidirectional data transmission apparatus includes a shared channel, a client device, and a host device. The host device includes a host link interface for preparing and transmitting a check packet via the shared channel to the client device according to a high-speed communication protocol. The client device includes a ... 01/11/07 - 20070008914 - Telecommunication system and method for generating and sending a telecommunication session message In the course of a half-duplex telecommunication session, a message has a message validity information item added to it and, if appropriate, a check is performed to determine whether or not the message is valid. ... 12/14/06 - 20060280133 - Full duplex/half duplex mismatch detecting method and full duplex/half duplex mismatch detecting apparatus applicable with the method A full duplex/half duplex mismatch is detected by a full duplex/half duplex mismatch detecting apparatus connected through a network to a host. The loss rate of the transmission of a check messages is compared according to a sequential transmission pattern and the loss rate of the transmission of the check ... 12/14/06 - 20060280132 - Techniques to identify duplex mismatch Techniques to determine the presence of conditions that could occur when link partners that are duplex-mismatched. For example, conditions may be detected that are likely to occur in a duplex-mismatched environment. The conditions may be transmitted to an administrator or otherwise made available for inspection. In some cases, a duplex ... 11/09/06 - 20060250995 - Half-duplex terminal for displaying holding time and communication method therefor A half-duplex terminal for displaying a holding time and a communication method therefor are provided. In the half-duplex terminal, a transmitter/receiver transmits/receives data and an acknowledgement (ACK) signal, a push-to-X (PTX) key is activated for data transmission/reception, a timer counts time upon pressing of the PTX key, a display displays ... 11/02/06 - 20060245380 - System and method for providing a fast and optimized uplink and downlink scheduling algorithm for use in fdd communication systems with half-duplex stations A system and method for scheduling uplink and downlink burst data transmissions for half-duplex terminals in a communication system. After the first half duplex terminal capacity allocation is scheduled for a plurality of half duplex terminals, all available second half duplex terminals are placed in the same relative order as ... 10/05/06 - 20060221872 - Method, base station and mobile station for tdd operation in a communication system A method, NodeB (320) and User Equipment (330) for TDD operation in a communication system operating in TDD mode in a frequency band allocated for FDD operation. Preferably, operation is in TDD uplink and downlink mode in a first frequency band designated or normally used for FDD uplink communication, and ... 03/16/06 - 20060056321 - Recovery of duplex data system after power failure A duplex data system performs a recovery process normally even in the event of an abrupt abnormal power failure. The duplex data system has a first storage device, a second storage device, and a control unit for duplicating data by storing the data in the first storage device and the ... 03/16/06 - 20060056320 - System and process using simplex and duplex communication protocols The invention is directed to a method of and apparatus for initiating a duplex communication in response to a received simplex communication. In one embodiment of a method of converting a simplex communication to a duplex communication a simplex message is received; a duplex communication protocol is transmitted in response; ... 02/02/06 - 20060023645 - Method and system for providing an analog fron end for multiline transmission in communication systems A method and system for providing an analog front end for multiline transmission in communications systems are described. A transceiver circuit (1100) is configured to reduce line noise by providing a coupled transmitter (1106), receiver (1106), prebalance circuit (1110), and transformer (1220) further coupled to a communication line (1264) external ... 10/20/05 - 20050232171 - Digital subscriber line transmission method, apparatus and system When training carried out prior to data communication is performed in digital subscriber line transmission (xDSL), the side which transmits training symbols adds some data that is contained in a training symbol sequence onto at least one of the beginning and end of this symbol sequence and then transmits the ... 10/20/05 - 20050232170 - Transceiver for full duplex communication systems A transceiver in a full duplex communication system includes a hybrid circuit for transmitting a transmission signal or receiving a receive signal via the channel, the hybrid circuit includes an echo cancellation device for removing transmission signal components from the receive signal; wherein the hybrid circuit outputs a processed receive ... 09/29/05 - 20050213518 - Mode shifting communications system and method A digital network based communications system that establishes communications sessions to communicate via a simulated circuit-switch environment. Exemplary embodiments communicate between a first communications station (104) and a second communications station (106) using Voice over Internet Protocol (VOIP) techniques. Calls are setup (700), maintained and torn down (800) using Session ... 07/14/05 - 20050152290 - Communication apparatus, communication system, communication method and program A communication apparatus for performing half duplex communications has: a memory circuit storing transmission data; a transmission processing circuit generating a transmission frame; a transmission/reception processing circuit outputting as a transmission signal the transmission frame generated by the transmission processing circuit and generating a reception frame by receiving a transmission ... 06/02/05 - 20050117528 - Method and apparatus for preventing loops in a full-duplex bus A method and apparatus is disclosed for preventing loops in a full-duplex bus. One method has the acts of: selecting at least two candidates to join said bus; establishing a dominant candidate from one of said at least two candidates; testing for loops in said bus; and joining said dominant ... ### FreshPatents.com Support |