Method for enabling nodes of heterogeneous communication protocols to share a single bus by adapting to one of the heterogeneous communication protocols and device for said method

A device for transmitting and receiving data to/from other devices through a shared bus, the device comprising:

• a transceiver configured to detect signals carried on the bus and to transmit input data after converting the input data into a signal form suitable for the bus;
• a first interface configured to transmit and receive to/from a Communication Module (CM) that is electrically connected to the first interface and is intended for transceiving data based on an arbitrary Communication Protocol (CP);
• at least one second interface configured to transmit and receive to/from at least one CM that is electrically connected to said at least one second interface respectively and is intended for transceiving data based on another CP other than the arbitrary CP;
• and
• a controller configured
• to incorporate a data block in form of data frame into a frame of a specific format in which a bit block for data synchronization is placed at head, the data block being received from the CM through the first interface, and
• to transmit the frame of the specific format to the bus, and to recognize a series of frames of the specific format from signals on the bus detected by the transceiver, and to take only a data block constituted in compliance with the arbitrary CP from the series of frames,
• wherein the controller is further configured
• to insert a code indicating the arbitrary CP into a specific part of the bit block when transmitting data to the bus,
• to take data of a certain frame if a signal corresponding to the specific part of a bit block, detected by the transceiver from the bus, pertaining to the certain frame is identified as the code indicating the arbitrary CP,
• to deliver a data block within a data field of the taken frame to the CM through the first interface, and
• to ignore the certain frame without receiving it from the bus if the signal corresponding to the specific part is not identified as the code indicating the arbitrary CP, and
• wherein the controller is further configured:
• to insert a code indicating a CP, which one interface among a plurality of interfaces consisting of the first interface is based on for transceiving data, into the specific part of the bit block placed at a front of a second frame of the specific format when incorporating a data block received from the one interface into the second frame;
• to take, from the bus, data of a third frame with a certain code that is confirmed to be identical to one of codes respectively indicating CPs which the plurality of interfaces are based on for transceiving data, the certain code being detected by the transceiver from a signal corresponding to the specific part of a bit block being carried on the bus;
• and
• to deliver all or part of data of the taken third frame to a CM intended to transceive data based on a CP corresponding to the certain code.