3 results about "Autonegotiation" patented technology

Method (100) performed by an Ethernet device (500) comprising a transmitter (516, 517) and a receiver (518, 519), comprising the following steps: Sending (102) autonegotiation (AN) base pages via the sender (516, 517) to an Ethernet link peer (552) to offer that the Ethernet device (500) has the capability to support at least one IEEE (“Institute of Electrical and Electronics Engineers”) 802.3 Ethernet specification that supports an AN; Detect (104) at the receiver (518, 519) using a first detection mode, a valid signal sent by the Ethernet link peer (552) that does not support autonegotiation (AN); and Detect (104) at the receiver (518, 519) using a second detection mode, of AN pages sent by the Ethernet link peer (552) using an Ethernet IEEE-802.3 link specification that supports an AN, wherein the first detection mode includes: Detect (108) whether a signal received at the receiver (518, 519) is a valid signal sent by an Ethernet link peer (552) that does not support AN; in response to the detection (108) that the signal received at the receiver (518, 519) is a valid signal sent by an Ethernet link peer (552) that does not support AN, starting (110) an autonegotiation wait timer; and Detect (112) whether both a single_link_ready state and an autoneg_wait_timer_done state are true, and the Ethernet connection, which does not support AN, is a 10 Gigabit-per-second direct link cable (10G-DAC) connection, further comprising: in response to the detection (112) that both the single link_ready state and the autoneg_wait_timer_done state are true, Disable (114) the AN transmission and switch the transmitter (516, 517) to a 10G-DAC mode.

System for extending an existing twisted copper cable for data transmission, comprising the selection of an additional conductor within the cable as an additional channel, the physical encoding of the data to be transmitted via this additional channel using embedded clock encoding, training and clock recovery using an initial training sequence, the exchange of connectivity data for autonegotiation, and an automatic fallback to the primary Ethernet link in case of missing or faulty autonegotiation.

The invention discloses a multichannel switching Ethernet compatible communication method, a multichannel switching Ethernet compatible communication device, multichannel switching Ethernet compatible communication equipment and a medium. The multichannel switching Ethernet compatible communication method comprises the following steps: receiving a power-on instruction, initializing a control chip, an Ethernet switching component and an Ethernet physical layer chip, and establishing a bus communication link; the control chip obtains equipment state parameters through the established bus communication link and performs communication rate matching to obtain rate matching information; the control chip sends a switching control instruction to the Ethernet switching component and the Ethernet physical layer chip according to the rate matching information so as to switch to a corresponding target communication channel; the control chip performs communication protocol configuration according to the target communication channel; and the Ethernet switching component or the Ethernet physical layer chip performs frame forwarding output on the data information from the control chip according to the configured communication protocol. According to the Ethernet compatible communication method, different vehicle-mounted Ethernet standards are compatible through automatic negotiation switching of multiple transmission rates, and the communication compatibility and stability are greatly improved.