Can transceiver
AssigneeNXP B.V.
InventorsRolf van de Burgt, Franciscus Johannes Klösters
Life of this patent
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Abstract
A transceiver for sending and receiving data from a controller area network (CAN) bus is disclosed. The transceiver includes a microcontroller port, a transmitter and a receiver, wherein the transceiver is configured to determine bit timings from a data frame received by the receiver. The transceiver is further configured to detect attempts to introduce a signal glitch in a predetermined portion of the data frame and upon detection of the signal glitch, the transceiver is configured to invalidate the data frame on a transmission line and/or disable the transmitter for a predetermined period.
Claims16
A transceiver for sending and receiving data from a controller area network (CAN) bus, the transceiver includes a microcontroller port, a transmitter and a receiver, wherein the transceiver is configured to determine bit timings from a data frame received by the receiver and the transceiver is configured to detect attempts to introduce a signal glitch in a predetermined portion of the data frame and upon detection of the signal glitch, the transceiver is configured to invalidate the data frame on a transmission line and/or disable the transmitter for a predetermined period.
A method for preventing a node from interrupting a communication on a controller area network (CAN) bus, the method comprising:
- determining a bit timing from a data frame received from the CAN bus;
- detecting a signal glitch during a predetermined portion of the data frame;
- upon detection of the signal glitch, invalidating the data frame and disable a transmitter for a predetermined period.
Dependencies are inferred from the claim text.