A retiming circuit module, a signal transmission system and a signal transmission method are disclosed. The retiming circuit module includes a path control circuit and a multipath signal transmission circuit. The multipath signal transmission circuit includes a plurality of parallel signal transmission paths. The path control circuit is configured to control the multipath signal transmission circuit to perform signal transmission between an upstream device and a downstream device based on a first parallel signal transmission path in the parallel signal transmission paths during a period of a handshake operation performed between the upstream device and the downstream device. The path control circuit is further configured to control the multipath signal transmission circuit to perform the signal transmission based on a second parallel signal transmission path in the parallel signal transmission paths after the handshake operation is finished.

Communication devices, communication systems and communication methods that implement transmission lane information are disclosed. In one example, circuitry is configured to receive transmission lane information from each of a plurality of reception lanes and to generate physical lane correspondence information based on the received transmission lane information, wherein the transmission lane information identifies a plurality of transmission lanes of a device that transmitted the transmission lane information. The physical lane correspondence information indicates a correspondence relationship between the plurality of transmission lanes and the plurality of reception lanes.

Communication devices, communication systems and communication methods that implement transmission lane information are disclosed. In one example, circuitry is configured to receive transmission lane information from each of a plurality of reception lanes and to generate physical lane correspondence information based on the received transmission lane information, wherein the transmission lane information identifies a plurality of transmission lanes of a device that transmitted the transmission lane information. The physical lane correspondence information indicates a correspondence relationship between the plurality of transmission lanes and the plurality of reception lanes.

In a transceiver, the accuracy of a packet time stamp can be improved by compensating for errors introduced by processing of the packet. A received packet can be received via multiple lanes. A packet time stamp can be measured using a start of frame delimiter (SFD). A last arriving lane can be used to provide a recovered clock signal. A phase offset between the recovered clock signal and the system clock of the transceiver can be used to adjust the time stamp. A position of the SFD within a data block can be used to adjust the time stamp. A position of the data block within a combined group of data blocks can be used to adjust the time stamp. Also, a serializer-deserializer delay associated with the last arriving lane can be used to adjust the time stamp.

A method is provided for performing zero-copy distribution of data samples between applications running on the same node in a system using an Object Management Group (OMG) Data Distribution Service (DDS) and/or a Real-Time Publish Subscribe (RTPS) protocol. Further provided is a method for selecting the network representation to communicate with a DataReader in a system using an Object Management Group (OMG) Real-Time Publish Subscribe (RTPS) protocol. Still further provided is the combination of these two methods to communicate transparently using zero-copy within the same node and not using zero-copy for different nodes. Embodiments of this invention lead to a relatively small communication latency that is constant and independent of the data size for applications running within a single node.

A method is provided for performing zero-copy distribution of data samples between applications running on the same node in a system using an Object Management Group (OMG) Data Distribution Service (DDS) and/or a Real-Time Publish Subscribe (RTPS) protocol. Further provided is a method for selecting the network representation to communicate with a DataReader in a system using an Object Management Group (OMG) Real-Time Publish Subscribe (RTPS) protocol. Still further provided is the combination of these two methods to communicate transparently using zero-copy within the same node and not using zero-copy for different nodes. Embodiments of this invention lead to a relatively small communication latency that is constant and independent of the data size for applications running within a single node.

A signal is transmitted at a high speed in a direction opposite to a transmitting direction of a main large-capacity channel. A first transmitting unit transmits a first signal including a clock component to an external device through a transmission path as a differential signal. A second transmitting unit superimposes a second signal including a clock component on the transmission path as an in-phase signal to transmit to the external device. A state notifying unit communicates with the external device through a pair of differential transmission paths included in the transmission path and notifies the external device of a connection state of its own device by a DC bias potential of at least one of the pair of differential transmission paths.

A signal is transmitted at a high speed in a direction opposite to a transmitting direction of a main large-capacity channel. A first transmitting unit transmits a first signal including a clock component to an external device through a transmission path as a differential signal. A second transmitting unit superimposes a second signal including a clock component on the transmission path as an in-phase signal to transmit to the external device. A state notifying unit communicates with the external device through a pair of differential transmission paths included in the transmission path and notifies the external device of a connection state of its own device by a DC bias potential of at least one of the pair of differential transmission paths.

A particular overall architecture for transmission over a bonded channel system consisting of two interconnected MoCA (Multimedia over Coax Alliance) 2.0 SoCs (Systems on a Chip) and a method and apparatus for the case of a “bonded” channel network. With a bonded channel network, the data is divided into two segments, the first of which is transported over a primary channel and the second of which is transported over a secondary channel.

A particular overall architecture for transmission over a bonded channel system consisting of two interconnected MoCA (Multimedia over Coax Alliance) 2.0 SoCs (Systems on a Chip) and a method and apparatus for the case of a “bonded” channel network. With a bonded channel network, the data is divided into two segments, the first of which is transported over a primary channel and the second of which is transported over a secondary channel.