# US 11,909,557 B2 · Secure ethernet and transmission control protocol > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,909,557 B2 - Document ID: US11909557B2 - Status: Granted - Kind: B2 - Application number: 18/101,633 - Filed: 2023-01-26 - Published: 2023-06-01 - Granted: 2024-02-20 - Earliest claimed: 2021-07-28 - Assignees: GM Cruise Holdings LLC - Applicants: GM Cruise Holdings LLC - Inventors: Shakti Shah; Victor Wang; Deepti Varshney; Jordan Ruderman; Ashwin Raut; Stephen Williams; Guy Erb - Web page: https://patentgrep.com/patent/US11909557B2 ## CPC - H04L 12/44: Star or tree networks - H04L 12/40: Bus networks - H04L 67/12: specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 12/088: using filters or firewalls - H04W 12/122: Counter-measures against attacks; Protection against rogue devices - H04L 2012/40215: {Controller Area Network CAN} - H04L 2012/40273: {the transportation system being a vehicle} - H04L 2012/445: {with switching in a hub, e.g. ETHERNET switch} - H04W 84/12: WLAN [Wireless Local Area Networks] - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Methods and systems are provided for providing secure Ethernet transmissions. In some aspects, an autonomous vehicle system is provided and can include a first system-on-chip being configured to provide data to a second system-on-chip via an Ethernet harness, a first switch being configured to: receive the data from the first system-on-chip, and provide the data to a first transceiver for transmission to the second system-on-chip, the first switch being configured to provide first transmission data to the first transceiver and to prohibit receipt of retrieval data from the second system-on-chip, and the first transceiver configured to communicate with the second system-on-chip via the Ethernet harness. ## Claims ### Claim 1 An autonomous vehicle system for providing secure Ethernet transmissions, the autonomous vehicle system comprising: a first system-on-chip being configured to provide data to a second system-on-chip; and a first transceiver being configured to communicate with the second system-on-chip via an Ethernet harness, wherein the Ethernet harness provides a one-way Ethernet connection from the second system-on-chip to the first system-on-chip. ### Claim 2 (depends on 1) The autonomous vehicle system of claim 1, further comprising: a first switch being configured to: receive the data from the first system-on-chip; and provide the data to the first transceiver for transmission to the second system-on-chip, the first switch being configured to provide first transmission data to the first transceiver and to prohibit receipt of retrieval data from the second system-on-chip. ### Claim 3 (depends on 2) The autonomous vehicle system of claim 2, wherein the first switch includes a transmit connection line with the first transceiver that prohibits the receipt of the retrieval data. ### Claim 4 (depends on 2) The autonomous vehicle system of claim 2, wherein the first switch excludes a receive connection line with the first transceiver to prohibit the receipt of the retrieval data. ### Claim 5 (depends on 1) The autonomous vehicle system of claim 1, further comprising: a first switch, which comprises: one or more processors; and at least one computer-readable storage medium having stored therein instructions which, when executed by the one or more processors, cause the first switch to exclude retrieval data received from the first transceiver. ### Claim 6 (depends on 1) The autonomous vehicle system of claim 1, further comprising a first connector being configured to communicatively couple the first transceiver and the second system-on-chip. ### Claim 7 (depends on 1) The autonomous vehicle system of claim 1, further comprising: a first digital signal processing system-on-chip being communicatively coupled to the first system-on-chip; and a first automotive audio bus (“A2B”) transceiver being configured to communicatively couple the first digital signal processing system-on-chip and the second system-on-chip. ### Claim 8 (depends on 7) The autonomous vehicle system of claim 7, wherein the first system-on-chip and the first digital signal processing system-on-chip are configured to communicate over a bus interface, the first system-on-chip being configured to provide second transmission data to the first digital signal processing system-on-chip via the bus interface and to prohibit receipt of retrieval data from the first digital signal processing system-on-chip. ### Claim 9 (depends on 1) The autonomous vehicle system of claim 1, further comprising: the second system-on-chip being configured to receive the data from the first system-on-chip via the Ethernet harness; a second switch being configured to: receive the data from the first system-on-chip via a second transceiver; and provide the data received from the second transceiver to the second system-on-chip, the second switch being configured to receive first transmission data from the second transceiver and to prohibit transmission of additional transmit data to the first system-on-chip; and the second transceiver being configured to communicate with the first system-on-chip via the Ethernet harness. ### Claim 10 (depends on 9) The autonomous vehicle system of claim 9, wherein the second switch includes a receive connection line with the second transceiver that prohibits the transmission of the additional transmit data. ### Claim 11 (depends on 9) The autonomous vehicle system of claim 9, wherein the second switch excludes a transmit connection line with the second transceiver to prohibit the transmission of the additional transmit data. ### Claim 12 A method for providing secure Ethernet transmissions, the method comprising: providing data, from a first system-on-chip, to a second system-on-chip; and communicating, via a first transceiver, with the second system-on-chip via an Ethernet harness, wherein the Ethernet harness provides a one-way Ethernet connection from the second system-on-chip to the first system-on-chip. ### Claim 13 (depends on 12) The method of claim 12, wherein a first switch includes a transmit connection line with the first transceiver that prohibits receipt of retrieval data. ### Claim 14 (depends on 12) The method of claim 12, wherein a first switch excludes a receive connection line with the first transceiver to prohibit receipt of retrieval data. ### Claim 15 (depends on 12) The method of claim 12, further comprising: excluding, by a first switch, retrieval data received from the first transceiver. ### Claim 16 (depends on 12) The method of claim 12, wherein the first transceiver and the second system-on-chip are communicatively coupled via a first connector. ### Claim 17 (depends on 12) The method of claim 12, further comprising: communicatively coupling a first digital signal processing system-on-chip to the first system-on-chip; and communicatively coupling the first digital signal processing system-on-chip and the second system-on-chip via a first automotive audio bus (“A2B”) transceiver. ### Claim 18 (depends on 17) The method of claim 17, wherein the first system-on-chip and the first digital signal processing system-on-chip are configured to communicate over a bus interface, the first system-on-chip being configured to provide second transmission data to the first digital signal processing system-on-chip via the bus interface and to prohibit receipt of retrieval data from the first digital signal processing system-on-chip. ### Claim 19 (depends on 12) The method of claim 12, further comprising: receiving the data from the first system-on-chip at the second system-on-chip via the Ethernet harness; receiving the data, at a second switch, from the first system-on-chip via a second transceiver; providing the data received from the second transceiver to the second system-on-chip, the second switch receiving first transmission data from the second transceiver and prohibiting transmission of additional transmit data to the first system-on-chip; and communicating, via the second transceiver, with the first system-on-chip via the Ethernet harness. ### Claim 20 (depends on 19) The method of claim 19, wherein the second switch includes a receive connection line with the second transceiver that prohibits the transmission of the additional transmit data. ### Claim 21 (depends on 19) The method of claim 19, wherein the second switch excludes a transmit connection line with the second transceiver to prohibit the transmission of the additional transmit data.