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

Claim 11:
12. A bus system, comprising:
a bus; and
at least two user stations that are connected to one another via the bus in such a way that they may communicate serially with one another, and of which at least one user station is a user station including:
a communication control device configured to control a communication of the user station with at least one other user station of the bus system; and
a transceiver device configured to serially transmit a transmission signal, generated by the communication control device, onto the bus of the bus system, and is configured to serially receive signals from the bus of the bus system;
wherein the communication control device is configured to generate the transmission signal according to a frame and to insert 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 being configured to insert dynamic stuff bits into the frame header in such a way that an inverse stuff bit is inserted into a bit stream of the frame after 5 identical bits in succession, and for computing the header check sum, the communication control device is 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.