Abstract: Systems and methods for performing MCS adaptation are provided. In some cases, the network performs MCS adaptation based on received NACKs. In other cases, the mobile station determines an MCS based on channel quality measurements, and feeds back the MCS adaptation decision to the network. In either case, NACK-only feedback may be implemented to reduce interference.

Abstract: Interface circuitry and method for transmitting and receiving downstream and upstream data signals simultaneously via a common conductor pair. The composite signal containing the downstream and upstream data signal components being conveyed by the common conductor pair is isolated, e.g., via signal filtering or buffering, and combined with an appropriately scaled inverse replica of the outgoing upstream data signal to subtract out upstream data signal components and thereby provide the downstream data signal substantially free of any upstream data signal components.

Abstract: An apparatus including a port to transmit first frames and receive second frames over a communication channel, the port including a collision detect circuit and a duplex mismatch circuit. The collision detect circuit detects collisions on the communication channel between the first frames and the second frames. The duplex mismatch circuit declares a duplex mismatch when the communication channel was established without attempting auto-negotiation, the port is in a half-duplex mode, and the collision detect circuit detects a very late collision involving one of the first frames. The very late collision occurs after a predetermined amount of data has been transmitted in the one of the first frames. The duplex mismatch indicates that a full-duplex mode is used with respect to the second frames.

Abstract: A base station comprises an RNC message receiver which receives data packets from a Radio Network Controller, RNC. The data packets are transmitted over air interface channels by a transmitter. The base station includes buffer memory for buffering the data packets prior to transmission, a scheduler for scheduling the data packets for transmission over the air interface channels, and a memory allocator for determining a first memory allocation of the buffer memory for a first air interface communication with a first user equipment. The base station further includes a flow controller for determining a transfer allowance for transferring of data from the RNC to the base station in response to the first memory allocation and a current buffer memory usage of the first air interface communication. The transfer allowance is transmitted to the RNC by an RNC message transmitter for achieving an efficient flow control.

Abstract: A first PHY may be coupled to a second PHY via a network link. The first PHY may transition from a role of timing master for the network link to a role of timing slave for the network link. During a first time interval subsequent to the transition, the PHYs may communicate half-duplex over the link while the first PHY synchronizes to a transmit clock of the second PHY. During a second time interval, the PHYs may communicate full-duplex while the second Ethernet PHY synchronizes to a transmit clock of the first PHY. Also during the second time interval, the first PHY may determine that the first PHY and the second PHY are synchronized. Subsequent to the determination, the PHYs may begin full-duplex communication of data on the network link.

Abstract: The invention has in particular as an object the synchronization of a local clock of an equipment item in a communication network according to synchronization frames emitted by a reference equipment item and transmitted via a switch. After it has received (700) a synchronization frame emitted by the reference equipment item and including its time point of emission, the switch transmits (730) the said received synchronization frame after a delay that is fixed, at least on average, counting from the reception of the said synchronization frame by the said switch (725). The local clock of the equipment item, after reception of the said synchronization frame by the equipment item, is synchronized according to the said time point of emission, to the time point of reception of the said synchronization frame and to the said delay.

Abstract: A communication circuit for providing a bi-directional data transmission over a signal line, thereby receiving a first digital data stream and transmitting a corresponding first signal into a near end of a signal line to a remote device, the remote device being connected to a far end of the signal line, receiving a second signal at the near end of the signal line from the remote device and deriving a second digital data stream therefrom, having a replica generator for providing, in response to the first digital data stream or a signal derived therefrom, a replica signal, and an extraction circuit for extracting the second digital data stream from the second signal in response to the replica signal and a comparator signal deduced from the near end of the signal line and an automatic test equipment having a plurality of communication circuits each providing a bi-directional data transmission.

Abstract: This invention relates to methods and systems for providing data from a distributed array. In one aspect, the array is a sensor array that includes sensor nodes that are each associated with one or more sensors, and the data includes sensor data acquired from the sensors by the sensor nodes. The sensor array employs modular and interchangeable sensor nodes that are capable of self-organizing in response to a network disruption while maintaining a flow of synchronized data to the event monitor. This self-organizing characteristic enables the overall network of nodes to be self-healing and easily extensible. The improved fault resilience makes it possible to deploy the sensors without requiring complex monitoring or fault diagnosis. Embodiments of the invention can be employed in any number of applications, including without limitation, tunnel activity detection, seismic/acoustic monitoring/detection and other applications where gathering sensor data may be desired.

Abstract: Provided are methods and systems of using division-free duplexing (DFD) in a communication network. Techniques for applying DFD in a communication network may decrease bottlenecks in the network by allowing one or more network nodes to transmit and on substantially the same frequency and at substantially the same time. In one embodiment, one or more nodes in the network may be DFD enabled, and may be configured to operate in either a conventional mode or a DFD mode. The mode of operation of DFD enabled nodes may depend on the quality of signals transmitted to and/or received at the DFD enabled nodes. Further, the mode of operation may change dynamically, and may be substantially controlled by any suitable processor in the network.

Abstract: In the multi-casting communication system, on receipt of a signal transmitted from one of mobile communication terminals with a half-duplex communication switch thereof being on, the PoC server records a user of the mobile communication terminal in a subscriber list as a next speaker, if there is another mobile communication terminal presently making multi-casting communication, and further if no mobile communication terminals are recorded in the subscriber list. Thus, it is clear who speaks next.

Abstract: A system and method for communicating DisplayPort information is provided. The system includes: a local unit comprising a local controller operable to produce a request packet in response to a DisplayPort request received by the local unit from a DisplayPort source unit and to transmit the request packet to a remote unit of the system via a first simplex channel of a dual simplex communications link; and the remote unit comprising a remote controller operable to produce a reply packet in response to a DisplayPort reply received by the remote unit from a DisplayPort sink unit and to transmit the reply packet to the local unit via a second simplex channel of the communications link. The system allows distances between the source and sink greater than otherwise possible under the DisplayPort specification, and can communicate DisplayPort and non-DisplayPort signals via a variety of types of communications links.

Abstract: A passive full-duplex bidirectional ZPL tap includes first and second network ports and first and second tap ports. A passive signal separator is configured to receive a data stream from at least one of the first or second network port and pass through the data stream and a first signal portion comprising at least the first signal component and a second signal portion comprising at least the second signal component. A first receive only physical interface device (Phy) is configured to receive the first signal portion from the signal separator and provide the first portion to the first tap port and a second receive only Phy is configured to receive the second signal portion from the signal separator and provide the second signal portion to the second tap port.

Abstract: A modem for symmetric bi-directional transporting of an Ethernet signal, comprises a port connected to a physical layer module adapted to receive and transmit a single Ethernet signal, a data splitter for splitting the Ethernet signal into the configurable number of downstream data signals, another port comprising the configurable number of DSL ports coupled to the data splitter. Each port is adapted to transmit a separate downstream signal. Each transmitted downstream signal is transmitted via a corresponding telephone line connected to the port. Each port is further adapted to receive a separate upstream signal. Each received upstream signal is received over the corresponding telephone line connected to the DSL port, and a data collection and reorganization unit coupled to the DSL ports and adapted to assemble the upstream signals into the single Ethernet signal for transmission by the physical layer module.

Abstract: A system and method performs speed and connection handshaking between Beta signal ports and/or Bilingual ports in a serial data interface system. A tone pattern generator (e.g., a flip-flop) can be used to generate a tone pattern signal representing approximately 49 MHz to approximately 62 MHz. A selecting system (e.g., a multiplexer, a digital multiplexer, or the like) selectively transmits either the tone pattern signal or a data input signal. These signals include a driver control signal. A serializer serializes either the tone pattern signal or the data input signal. A clock device (e.g., a clock divider) drives the tone pattern generator and the serializer. A driver receives and differentially transmits, along a twister-wire pair, either the serialized tone pattern signal or the serialized data input signal.

Abstract: Disclosed is a base station comprising an antenna and a plurality of integrated transceiver modules. Each integrated transceiver module includes a radio and a decentral duplexer connected to the radio and the antenna for transmission of and reception of communication signals. The integrated transceiver module therefore modularizes the base station so that all of the components of a base station can be located on a single module (e.g., one printed circuit board (PCB)). The base station can be upgraded by inserting additional integrated transceiver modules into the base station.

Abstract: The present invention extends to methods, systems, and computer program products for routing requests for duplex applications. Embodiments of the invention provide a multi-machine scalability mechanism for duplex messages patterns based on a polling mechanism. Client requests and polls can be distributed to service instances running within a cluster of machines by a session-unaware load balancer. Messages to and from a given client can be accessed by any service instance in the cluster service instance, which allows capacity scale-out and seamless failover between service instances. A coordinated inbound message store is used to affinitize application requests to a particular service instance. A coordinated outbound message store is used to route application responses from the machine running the application to the machine where a polling request arrived.

Abstract: A network including two networking devices connected via a self-configurable asymmetric link. The networking devices connect multimedia sink and source devices. And the networking devices further set the direction of the self-configurable asymmetric link based on a function describing the desired connections between the multimedia sink and multimedia source devices. Also disclosed a network comprising two networking devices connected via a self-configurable asymmetric link. The networking devices configured to connect multimedia sink and source devices. And the networking devices set the direction of the self-configurable asymmetric link based on the usage statistics of the self-configurable asymmetric link.

Abstract: The present invention concerns a device comprising a medium access control module for performing functions of a medium access control sublayer, noted MAC module, the device comprising a MAC interface module connected to the MAC module, the MAC interface module being adapted to connect in a first mode with a connector to a second MAC interface module or in a second mode with a connector to a physical interface module, the second MAC interface module being located in a second device comprising a MAC module connected to the second MAC interface module. In the first mode, the device comprises means for communicating in a half-duplex manner with the second device, and means for sending a medium busy signal to the second device.

Abstract: A method of analyzing the performance of a modem connection. The method includes connecting a line interface to a communication link carrying signals of a modem connection, between a pair of end modems, collecting signals passing on the communication link, between the end modems, through the line interface, determining quality or transmission characteristics regarding the modem connection, responsive to signals collected through the line interface, and displaying information on the determined characteristics.

Abstract: According to a first aspect the invention relates to a device forming a central controller (C) intended to he linked to a remote peripheral (P1-PN) by way an electrical power line (L), comprising a power transmitter (1) and a low-pass litter (CC—BF) arranged between the power transmitter and the electrical line, as well as means for transmitting/receiving data (3) in baseband and a high-pass filter (Cc—HF) arranged between the data transmission/reception means and the electrical line, the electrical line being of the kind mutualized for the transmission of power at low frequency from the central controller to the remote peripheral and for the simultaneous bidirectional transmission of data in baseband at high frequency between the central controller and the remote peripheral.

Abstract: A system and method for accelerated performance of quadrature amplitude modulation (QAM) is provided. The system includes multiple general purpose registers and multiple execution units configured to decode a set of QAM tones in parallel or an individual QAM tone in response to a single instruction executable by the processor. Each of the plurality of execution units is configured to decode one of the set of QAM tones according to a constellation size associated with the one of the set of QAM tones. The QAM decoding method includes reading a constellation size value for each of a set of received input tones. For each tone in the set of input tones, an ideal point in a QAM constellation of the associated constellation size closest to the X and Y coordinates of the tone is determined. The data values of the ideal points are then stored in a destination register.

Abstract: A method and system for managing communications in a packet-based real-time media conference. A conference server determines whether a given conference session should operate in half-duplex mode or in full-duplex mode, and the server instructs at least one participating station accordingly. In the half-duplex mode of operation, for instance, a station may engage in an implicit floor control process, in which the station treats an incoming media stream as an implicit floor denial. On the other hand, in the full-duplex mode of operation, a station would not treat an incoming stream as an implicit floor denial.

Abstract: A method and system for leveraging user media file rating data. In one aspect, the system includes a component in communication with a plurality of media file related services, a rating storage, and a component for making the user rating data available to be used by plural services so that each respective service can use the rating data to tailor a user experience during interaction by the particular user with the respective service. In one aspect, the user preference rating is received from any of the media file related services. In one aspect the user preference rating information and the associated media file information are associated with a particular user regardless of the respective media file related service the preference rating was received from.

Abstract: An Internet appliance, comprising, within a single housing, packet data network interfaces, adapted for communicating with the Internet and a local area network, at least one data interface selected from the group consisting of a universal serial bus, an IEEE-1394 interface, a voice telephony interface, an audio program interface, a video program interface, an audiovisual program interface, a camera interface, a physical security system interface, a wireless networking interface; a device control interface, smart home interface, an environmental sensing interface, and an environmental control interface, and a processor, for controlling a data transfer between the local area network and the Internet, and defining a markup language interface communicated through a packet data network interface, to control a data transfer or control a remote device.

Abstract: A data transmitter includes: a packetization unit receiving primary data from a data processor and packetizing the primary data; a high-speed transmission unit transmitting a data packet obtained from the packetization to a display device in a high-speed mode; and a low-speed transmission unit relaying and transmitting secondary data between the data processor and the display device in a low-speed mode. Accordingly, it is possible to transmit and receive data rapidly and efficiently.

Abstract: A method and system for using half-duplex base stations and half-duplex nodes in a Frequency Division Duplexing region to provide wireless connectivity between the half-duplex base stations and customers in multiple sectors of a cell. The method and system can use two physical channels to form two logical channels. Each logical channel shares both physical channels during alternating frames of time. The half-duplex nodes can include a millimeter-wave band frequency synthesizer configured to transmit and receive on different channels to and from the half-duplex base station. Re-use patterns of the physical channels are used for deployment of half-duplex base stations and half-duplex nodes in the FDD region to minimize co-channel interference and interference due to uncorrelated rain fade. Additional methods and systems utilize full-duplex base stations and smart antenna to communicate with the half-duplex nodes.

Abstract: A relay transmission method and apparatus are provided. The method includes: configuring a subframe of a Time Division Duplex (TDD) relay frame for a subframe of relay link (S201), where the configuring the subframe of the TDD relay frame for the subframe of relay link includes: configuring a downlink (DL) subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink (UL) subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link (S202). When data is transmitted, a subframe that can be used for relay link transmission is configured, data transmission performed by using relay link complies with inherent constraints of a TDD frame structure in the prior art.

Abstract: A transceiver is operated in a cellular communications system, wherein the transceiver has a variable transmitter output power that spans a range of power levels comprising a low-power domain and a high-power domain. Operation includes determining whether the transmitter output power of the transceiver is in the low-power domain or the high-power domain. If the transmitter output power of the transceiver is in the low-power domain, then transceiver operation is initiated in a full-duplex mode in which transmitted and received signals pass through a duplexer associated with a transceiver antenna. If the transmitter output power of the transceiver is in the high-power domain, then transceiver operation is initiated in a half-duplex mode and bypassing the duplexer.

Abstract: A relay transmission method and apparatus are provided. The method includes: configuring a subframe of a Time Division Duplex (TDD) relay frame for a subframe of relay link (S201), where the configuring the subframe of the TDD relay frame for the subframe of relay link includes: configuring a downlink (DL) subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink (UL) subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link (S202). When data is transmitted, a subframe that can be used for relay link transmission is configured, data transmission performed by using relay link complies with inherent constraints of a TDD frame structure in the prior art.

Abstract: A relay transmission method and apparatus are provided. The method includes: configuring a subframe of a Time Division Duplex (TDD) relay frame for a subframe of relay link (S201), where the configuring the subframe of the TDD relay frame for the subframe of relay link includes: configuring a downlink (DL) subframe of the TDD relay frame for a DL subframe of relay link, and/or configuring the DL subframe of the TDD relay frame for an uplink (UL) subframe of relay link, and/or configuring a UL subframe of the TDD relay frame for the UL subframe of relay link; and performing relay transmission according to the subframe of relay link (S202). When data is transmitted, a subframe that can be used for relay link transmission is configured, data transmission performed by using relay link complies with inherent constraints of a TDD frame structure in the prior art.

Abstract: A communication system generates a constant-envelope composite signal containing at least two signals whose power levels, bandwidths, and/or data rates are independently controllable. Binary offset carrier (BOC) modulation is applied to the signals to be combined in the composite signal. The BOC modulated signals are then combined via interplex modulation to form a constant-envelope composite signal in which the constituent signals modulate different offset carriers. For example, real BOC modulation can be used to generate a ranging signal in edge portions of the transmission band of the composite signal, while complex BOC modulation can be used to generate a frequency agile data signal in a center portion of the transmission band. Such a signal can be used for full duplex communications in satellite crosslinks. The interplex modulation allows independent control of the power levels of the two signals while maintaining a constant envelope, permitting use of saturated RF amplifiers.

Abstract: A method for measuring and determining the duplex modes of a network interface. The method assumes the network interface to be operating in a half-duplex mode until the bandwidth utilization reaches a threshold. When the threshold is reached, the method checks the traffic collision in the interface. If there is no collision, then the duplex mode is determined to be full-duplex. If there is collision, then the duplex mode is determined to be half-duplex and an alarm is set off. In another embodiment, the interface type is determined through SNMP. If the interface is a WAN interface, then the interface is determined to be full-duplex.

Abstract: 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 may include duplexed structures, as well as non-duplexed or simplexed structures.

Abstract: An active transceiver circuit (212) for transmission of a low bitrate data signal (177) over and reception of a high bitrate data signal (166R) from a single ended transmission medium (105), the transmission medium (105) comprising an inner conductor (107) and a conductive shield layer (109), comprises: an input port (204) for receiving a low bitrate input data signal (101), an output port (202) for delivering a high bitrate output data signal (102), a differential input/output port (203) for launching a low bitrate data signal (177) into the single ended transmission medium (105) and for receiving a high bitrate data signal (166R) from the single ended transmission medium (105), a first and second single ended output driver (191, 192) adapted for each delivering, on their respective output nodes (111, 112), the low bitrate input data signal (101) shaped to a maximum slew rate that is at least 5 times smaller than the maximum slew rate of the received high bitrate data signal (166R), and a high bitrate recei

Abstract: A data communication system for starting transmission and reception of target data for processing upon recognition that switching between communication modes is completed. The data communication system includes a master communication device and a slave communication device that continuously perform, at a time of switching from half-duplex communication to full-duplex communication, (i) a handshake using a directional control code indicating the switching and a preamble code indicating completion of the switching and (ii) a handshake using the preamble code and an acknowledge code indicating receipt of the preamble code, whereby each of the devices recognizes that the switching between communication modes by the opposite device is completed and starts transmission and reception of the target data.

Abstract: The present invention concerns an aircraft communication system (100) comprising a primary network (300) of AFDX type intended to connect a plurality of primary equipment items (310, 311, 320, 321, 330, 340, 360). This communication system comprises: a secondary network (500) dissimilar to said first network (300) whilst having the same protocol at frame level, said secondary network (500) being intended to connect a plurality of secondary equipment items (510, 520, 530, 540, 560), and an interconnection gateway (700; 700a; 700b; 700c) between said primary (300) and secondary (500) networks, intended to copy common data frames bit-by-bit originating from one of said primary and secondary networks (300, 500) for distribution thereof through the other of said primary and secondary networks (300, 500), to have this common data shared by the two networks (300, 500).

Abstract: Provided is a wireless communication device for receiving a mobile broadcasting signal and transmitting/receiving a Bluetooth® signal through a single antenna, which allows separation of the two signals using a difference in their frequency bands. A diplexer separates the signals using different band-pass filters. The signals are respectively input into a mobile broadcasting module and a Bluetooth® module. The wireless communication device allows reception of mobile broadcasting and Bluetooth signals within different frequency bands through a single antenna, thus achieving a compact and thin device with a reduced antenna mounting space.

Abstract: A method provides a technique to implement a circuit for duplexing a clock board that is applicable to all circuit elements within a base station which is synchronized by using a clock. More particularly, the method duplexes a clock board which is embodied to supply a stable clock in a CDMA (code division multiple access) System in such a manner that in case an active board is mounted/dismounted or its hardware is reset, a protection circuit logic is implemented for a board in standby mode (“a standby board”) to receive information of an Opponent board. This is so that a clock break during changing the board can be prevented by using the previously received information and the traditional complicated hardware circuits can be simplified by employing an EPLD (electrically programmable logic device).

Abstract: A method is provided for controlling power in a communication system. The power control method includes allocating a first data transmission region and a second data transmission region corresponding to a first communication scheme and second communication scheme; providing a communication service to a receiver through the first data transmission region, and receiving power control information from the receiver through the second data transmission region while providing the communication service; and adjusting a level of transmission power used for providing the communication service according to the received power control information, and providing the communication service to the receiver using the adjusted transmission power.

Abstract: A remote control-based data sharing system and method for handheld terminals over a communication network are provided. The data sharing system includes a master terminal that transmits a control assignment request and displays a screen image received in response to the control assignment request; a slave terminal that selectively assigns a control to the master terminal in response to the control assignment request and operates in accordance with a control signal received from the master terminal; and a network that establishes wireless communication channels with the master and slave terminals for exchanging signals between the master and slave terminals.

Abstract: Embodiments herein provide full duplex operation (i.e., simultaneous receiving and transmitting of data over a network) of a network device of a computer system. Receiving and transmitting threads are used for receiving and transmitting data using the network device, the threads requiring access to an associated data structure to use the network device. Conventionally, the data structure is locked to allow access to only one thread at a time to protect against information inconsistencies in the data structure. Some embodiments remove the locking feature of the data structure to provide simultaneous access to the data structure by the receiving and transmitting threads, and thus allow full duplex operation of the network device. Protections against information inconsistencies in the data structure may be provided, including providing separate receiving and transmitting information sections in the data structure and assurances that only one transmitting thread accesses the data structure at any time.

Abstract: A system and method is disclosed for allowing communications between a base station and a group of mobile transceivers in a communications network used for a merchant facility.

Abstract: The present invention provides a method of preserving packet ordering in a multi-path network having a plurality of network elements interconnected by network links wherein for each data packet arriving at an egress port of the multi-path network, a delivery acknowledgement is issued by the egress port and is transmitted across the network following in reverse the path taken by the data packet being acknowledged, and wherein the state of each link in the path taken by the data packet being acknowledged is updated by the acknowledgement.

Abstract: A processing system is disclosed with a sending component and a receiving component connected by a bus. The bus may be configured with first and second channels. The sending component may be configured to broadcast on the first channel read and write address information, read and write control signals, and write data. The sending component may also be configured to signal the receiving component such that the receiving component can distinguish between the read and write address information, the read and write control signals, and the write data broadcast on the first channel. The receiving component may be configured to store the write data broadcast on the first channel based on the write address information and the write control signals, retrieve read data based on the read address information and the read control signals, and broadcast the retrieved read data on the second channel.

Abstract: Systems and methods for resolving signal-to-noise ratio margin difference n dual latency discrete multi-tone (DMT)-based xDSL systems under colored noise conditions. Rather than assuming a constant power spectral density (PSD) for noise over fast and interleaved data paths of a dual latency system, band edges vulnerable to colored noise are determined and data on the fast data path is allocated away from these band edges. Also, receive windowing may be used to further enhance performance.

Abstract: Systems and methods for multi-band amplification. In an exemplary embodiment of the present invention, the multi-band amplification device has an uplink amplifier with a first port and a second port and a downlink amplifier with a first port and a second port. Furthermore, the multi-band amplification device has a first duplexer device in communication with the first port of the downlink amplifier and the second port of the uplink amplifier and a second duplexer device in communication with the first port of the uplink amplifier and the second port of the downlink amplifier. The first duplexer device is enabled to receive and transmit at least a downlink signal and an uplink signal of a first frequency band, a downlink signal and an uplink signal of a second frequency band, and a downlink signal and an uplink signal of a third frequency band.

Abstract: A quadrature modulator divides a part of a transmitted signal to generate a cancel signal. A signal comparator compares the amplitude and phase of the cancel signal which is generated by the quadrature modulator with those of a received signal, and outputs signals corresponding to the comparison results to the quadrature modulator. The quadrature modulator generates the cancel signal on the basis of the output signals of the signal comparator, and these components perform feedback control such that the cancel signal has the same amplitude as the leakage signal and is in phase with the leakage signal. A combiner combines the cancel signal with an antiphase cancel signal, which is made to be in opposite phase with the cancel signal outputted from the quadrature modulator, to cancel out the leakage signal.

Abstract: A data transmission technique where high speed data is transmitted differentially in a forward channel by way of a serial link, and relatively low speed data is differentially modulated onto the forward channel signal for transmission in a reverse channel via the link. By utilizing differential modulation in both forward and reverse channels, the resulting signal has a common mode voltage that is substantially constant, resulting in low EMI. The spectral content of the signal associated with the high speed data may be substantially non-overlapping with the spectral content of the signal associated with the low speed data. This facilitates the recovery of the high speed data and low speed data with minimal interference. The differential signaling lends itself for communicating data via an inexpensive medium, such as twisted wire pair or parallel PCB traces. The data transmission technique applies to various communication network topologies: point-to-point, daisy-chain, and point-to-multiple points.

Abstract: Disclosed herein is a wireless transmission system, including: a plurality of systems of millimeter wave signal transmission lines capable of individually transmitting information in a millimeter waveband independently of each other; a sending section disposed on one end side of each of the plural systems of millimeter wave signal transmission lines; and a reception section disposed on the other end side of each of the plural systems of millimeter wave signal transmission lines. The sending section is adapted to convert a signal of an object of transmission into a millimeter wave signal and supply the millimeter wave signal to the millimeter signal transmission line. The reception section is adapted to receive the millimeter wave signal transmitted thereto through the millimeter wave signal transmission line and convert the received millimeter wave signal into the signal of the object of transmission.

Abstract: The present invention extends to methods, systems, and computer program products for multiplexed communication for duplex applications. Embodiments of the invention facilitate a multiplexed variant of long polling over a request/reply communication medium that (potentially significantly) reduces the resources utilized when exchanging messages. The lightweight address generation mechanism facilitates polling and routing for a pool of many clients and many services while minimizing allocated resources to each established session. Further, the benefits of a lower latency bidirectional communication medium between clients and services can be utilized.