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1. (WO2018022291) TECHNIQUES DE MAC ET DE COUCHE PHYSIQUE POUR PERMETTRE DES COMMUNICATIONS SUR UN SUPPORT PHYSIQUE PARTAGÉ AVEC UNE CAPACITÉ MULTIBRANCHEMENT
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

WHAT IS CLAIMED IS:

1. An apparatus comprising:

at least one transceiver (302, 304) configured to transmit or receive at least one clock signal and at least one data signal over a shared physical medium (104), the shared physical medium comprising a bus configured to be coupled to multiple devices (102a-102n) including the apparatus and providing a multi-drop capability, the at least one transceiver configured to transmit or receive the signals at a rate of more than 10 megabits per second (Mbps); and

a media access control (MAC) driver (308) configured to exchange network layer data over the shared physical medium.

2. The apparatus of Claim 1 , wherein the MAC driver is configured to: determine that the apparatus is functioning in a master mode; and

cause the at least one transceiver to transmit the at least one clock signal over the shared physical medium in response to determining that the apparatus is functioning in the master mode.

3. The apparatus of Claim 2, wherein the MAC driver is configured to cause the at least one transceiver to receive the at least one clock signal over the shared physical medium and synchronize to operation of the bus in response to determining that the apparatus is not functioning in the master mode.

4. The apparatus of Claim 2, wherein the MAC driver is further configured to send a token to other devices (102a-102n) over the shared physical medium when functioning in the master mode, the token allowing the other devices to transmit data over the shared physical medium.

5. A method comprising:

transmitting or receiving at least one clock signal and at least one data signal over a high-speed shared physical medium (104) using at least one transceiver (302, 304), the shared physical medium comprising a bus coupled to multiple devices (102a-102n) and providing a multi-drop capability, the at least one transceiver configured to transmit or receive the signals at a rate of more than 10 megabits per second (Mbps); and exchanging network layer data over the shared physical medium using a media access control (MAC) driver (308).

6. The method of Claim 5, further comprising:

identifying the devices coupled to the bus using the MAC driver when the MAC driver is operating in a device (102a-102n) in a master mode.

7. The method of Claim 5, wherein the at least one transceiver supports multiple channels configured to be coupled to different numbers of conductors in the shared physical medium and provide an adjustable bandwidth.

8. An apparatus comprising:

at least one transceiver (402, 404, 406, 408) configured to transmit or receive at least one data signal over a shared physical medium (104), the shared physical medium comprising a bus configured to be coupled to multiple devices (102a- 102n) including the apparatus and providing a multi-drop capability, the at least one transceiver configured to transmit or receive the at least one data signal at a rate of more than 10 megabits per second (Mbps);

a media access control (MAC) driver (412) configured to control transmissions and receptions of network layer data over the shared physical medium by the at least one transceiver; and

a logic device (414) configured to control physical layer signaling and interface with the MAC driver, the logic device configured to enable the transmissions and receptions of the network layer data on the shared physical medium and to implement collision detection and avoidance.

9. The apparatus of Claim 8, wherein the logic device comprises at least one of: a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a complex programmable logic device (CPLD), discrete digital logic, and a microcontroller.

10. The apparatus of Claim 8, wherein an interface (418) between the logic device and the MAC driver comprises at least one of: a Media Independent Interface (Mil), a Reduced Media Independent Interface (RMII), a Gigabit Media Independent Interface (RMII), a Serial Peripheral Interface (SP1), and a Universal Asynchronous Receiver/Transmitter (UART) interface.

11. A method comprising :

transmitting or receiving at least one data signal over a high-speed shared physical medium (104) using at least one transceiver (402, 404, 406, 408), the shared physical medium including a bus coupled to multiple devices (102a-102n) and providing a multi-drop capability, the at least one transceiver configured to transmit or receive the at least one data signal at a rate of more than 10 megabits per second (Mbps);

controlling transmissions and receptions of network layer data over the shared physical medium by the at least one transceiver using a media access control (MAC) driver (412); and

enabling the transmissions and receptions of the network layer data on the shared physical medium using a logic device (414) that controls physical layer signaling, interfaces with the MAC driver, and implements collision detection and avoidance.

12. The method of Claim 1 1 , further comprising:

performing a bridging function using the logic device to communicatively couple the shared physical medium to a second shared physical medium, the shared physical media using a common communication protocol and a common transmission scheme.

13. The method of Claim 11, further comprising:

performing a translation function using the logic device to communicatively couple the shared physical medium to a second shared physical medium, the shared physical media using different communication protocols or different transmission schemes.

14. The method of Claim 11, further comprising:

buffering the shared physical medium using the logic device.

15. Hie method of Claim 11, further comprising:

using the logic device, executing at least one of: a frame integrity check, a retry mechanism, an anti -jabber function, an encryption function, and a diagnostic function.