In an on-board communication system, an on-board device transmits processing start signals and detection signals from a plurality of antennas provided in a vehicle, and a portable device receives the processing start signals and the detection signals and transmits a response signal that includes information corresponding to the received detection signals. Position detection of the portable device is performed based on the response signal. The processing start signals start reception processing of the detection signals by the portable device. The detection signals are successively transmitted from the plurality of antennas, at a different timing for each of the plurality of antennas. Various vehicle processing, such as engine start processing, may be performed based on the detected position of the portable device, such as whether the portable device is inside or outside the vehicle.
ON-BOARD COMMUNICATION SYSTEM, AND ON-BOARD DEVICE
2017-04-06
Patent
Elektronische Ressource
Englisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / E05B LOCKS , Schlösser / G08C Übertragungssysteme für Messwerte, Regel-, Steuer- oder ähnliche Signale , TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze |
ON-BOARD COMMUNICATION SYSTEM, ON-BOARD RELAY DEVICE, AND ON-BOARD CONTROL DEVICE
Europäisches Patentamt | 2020
|ON-BOARD COMMUNICATION SYSTEM, ON-BOARD DEVICE, AND INTERFACE DEVICE
Europäisches Patentamt | 2022
|