公开(公告)号：US20240267318A1

公开(公告)日：2024-08-08

申请号：US18292283

申请日：2022-08-11

申请人： Robert Bosch GmbH

发明人： Felix Fellhauer ,  Sebastian Hoeppner ,  Stephan Hartmann ,  Jean Noel ,  Markus Winter

IPC分类号： H04L43/50 ,  H04L43/0823 ,  H04L43/087

CPC分类号： H04L43/50 ,  H04L43/0847 ,  H04L43/087

摘要： An apparatus including a plurality of interface devices. The plurality of interface devices each include a first connection device for connecting to a transmission medium. A first interface device of the plurality of interface devices is configured to at least temporarily output at least a first signal, for example a test signal, of at least one second interface device of the plurality of interface devices via its first connection device.

公开(公告)号：US20240214030A1

公开(公告)日：2024-06-27

申请号：US18555762

申请日：2022-07-07

申请人： Robert Bosch GmbH

发明人： Felix Fellhauer

IPC分类号： H04B3/462 ,  H04B3/48

CPC分类号： H04B3/462 ,  H04B3/48

摘要： A method and to a circuit arrangement for identifying impedance changes in a signal line in a communication system. A first signal at a first frequency is input at a first end of the signal line, wherein a signal coming from the signal line and present at the first end is detected, is sampled at a second frequency different from the first frequency, and is analyzed for an impedance change. The state of the signal line is deduced on the basis of the analyzed signal.