MAIN BLUETOOTH CIRCUIT AND AUXILIARY BLUETOOTH CIRCUIT OF MULTI-MEMBER BLUETOOTH DEVICE CAPABLE OF ADAPTIVELY SWITCHING OPERATION MODE IN RESPONSE TO DATA TYPE CHANGE OF RECEIVED PACKETS

摘要

The present invention provides a main Bluetooth circuit and a sub Bluetooth circuit of a multi-member Bluetooth device for performing data transmission with a remote Bluetooth device. While the sub Bluetooth circuit operates in the relay mode, the main Bluetooth circuit receives the packet transmitted by the remote Bluetooth device, forwards the received packet to the sub Bluetooth circuit, and the sub Bluetooth circuit transmits the packet transmitted from the remote Bluetooth device. If no sniffing occurs, but a change occurs in the data type of the packet transmitted by the remote Bluetooth device, the sub Bluetooth circuit switches from the relay mode to the sniffing mode. While the sub Bluetooth circuit is operating in the sniffing mode, the main Bluetooth circuit receives packets transmitted by the remote Bluetooth device, and the sub Bluetooth circuit sniffs the packets transmitted from the remote Bluetooth device.