Multi-member bluetooth device capable of reducing complexity of updating internal clock of bluetooth circuit

A multi-member Bluetooth device (100) utilized to operably conduct data transmission with a source Bluetooth device (102), the source Bluetooth device (102) being acting as a master in a first piconet (310), the multi-member Bluetooth device (100) comprising:

• a main Bluetooth circuit (110), comprising:
• a first Bluetooth communication circuit (111);
• a first packet parsing circuit (113), arranged to operably parse packets received by the first Bluetooth communication circuit (111);
• a first clock adjusting circuit (115);
• a first control circuit (117), coupled with the first Bluetooth communication circuit (111), the first packet parsing circuit (113), and the first clock adjusting circuit (115), arranged to operably control the main Bluetooth circuit (110) to act as a slave in the first piconet (310), and to act as a master in a second piconet (320);
• and
• an auxiliary Bluetooth circuit (120), comprising:
• a second Bluetooth communication circuit (121);
• a second packet parsing circuit (123), arranged to operably parse packets received by the second Bluetooth communication circuit (121);
• a second clock adjusting circuit (125);
• and
• a second control circuit (127), coupled with the second Bluetooth communication circuit (121), the second packet parsing circuit (123), and the second clock adjusting circuit (125), arranged to operably control the auxiliary Bluetooth circuit (120) to act as a slave in the second piconet (320);
• wherein the first control circuit (117) is further arranged to operably conduct following operations:
• controlling the first clock adjusting circuit (115) to generate a first slave clock (CLK_P1S1) and a second main clock (CLK_P2M) according to a timing data of a first main clock (CLK_P1M) generated by the source Bluetooth device (102), so that both the first slave clock (CLK_P1S1) and the second main clock (CLK_P2M) are synchronized with the first main clock (CLK_P1M);
• controlling the first Bluetooth communication circuit (111) to transmit or receive packets in the first piconet (310) according to the first slave clock (CLK_P1S1);
• and
• controlling the first Bluetooth communication circuit (111) to transmit or receive packets in the second piconet (320) according to the second main clock (CLK_P2M);
• wherein the second control circuit (127) is further arranged to operably conduct following operations:
• controlling the second clock adjusting circuit (125) to generate a second slave clock (CLK_P2S1) and a third slave clock (CLK_P1S2) according to a timing data of the second main clock (CLK_P2M), so that both the second slave clock (CLK_P2S1) and the third slave clock (CLK_P1S2) are synchronized with the second main clock (CLK_P2M);
• and
• controlling the second Bluetooth communication circuit (121) to operate based on the third slave clock (CLK_P1S2) to sniff Bluetooth packets issued in the first piconet (310) by the source Bluetooth device (102).