US 12,443,552 B2
Transmission module for a transmitting/receiving device of a subscriber station of a serial bus system, and method for transmitting a message with differential signals in a serial bus system
Christian Mages, Stuttgart (DE); and Steffen Walker, Reutlingen (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on May 22, 2024, as Appl. No. 18/670,968.
Claims priority of application No. 10 2023 205 267.9 (DE), filed on Jun. 6, 2023.
Prior Publication US 2024/0411713 A1, Dec. 12, 2024
Int. Cl. G06F 13/374 (2006.01); G06F 13/42 (2006.01)
CPC G06F 13/374 (2013.01) [G06F 13/4282 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A transmission module for a transmitting/receiving device of a subscriber station of a serial bus system, the transmission module being configured to transmit a digital transmit signal as an analog differential signal on a bus of the bus system in order to transmit a message to at least one other subscriber station of the bus system, wherein bits of the digital transmit signal have a greater bit duration in a first communication phase than in a second communication phase of the transmit signal,
wherein the transmission module is configured to generate states, specified by the digital transmit signal over time, on the bus by changing bus voltage and/or bus impedance,
wherein the transmission module is configured to change the specified states on the bus via a predetermined sequence of intermediate states for the bus voltage and/or for the bus impedance toward a desired state on the bus, and
wherein the transmission module is configured to, when signaling changes during a transition between two of the specified states on the bus, change the transition back again continuously with an opposite sequence of intermediate states from the intermediate state reached by then.