Patent ID: 11962410
Assignee: ROBERT BOSCH GMBH
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. A method for communicating in a serial bus system, the method being carried out using a user station of the bus system that includes a communication control device and a transceiver device, the method comprising the following steps:
controlling, via the communication control device, a communication of the user station with at least one other user station of the bus system;
transmitting, via the transceiver device, a transmission signal, generated by the communication control device, onto a bus of the bus system, the transceiver device also being configured to serially receive signals from the bus of the bus system;
generating, via the communication control device, the transmission signal according to a frame, the communication control device inserting a header check sum into the frame, only bits of a frame header that is situated in front of a data field provided for useful data in the frame being included in a computation of the header check sum, the communication control device inserting dynamic stuff bits into the frame header in such a way that an inverse stuff bit is inserted into the bit stream of the frame after 5 identical bits in succession, and for computing the header check sum, the communication control device being configured to use a predetermined starting value and a predetermined check sum polynomial with which an intermediate result of the computation of the header check sum is not equal to a zero vector for a portion of the frame header in which the dynamic stuff bits are used.