US 11,910,490 B2
Multi-member Bluetooth device capable of dynamically switching operation mode, and related main Bluetooth circuit and auxiliary Bluetooth circuit
Yi-Cheng Chen, Hsinchu (TW); Kuan-Chung Huang, Hsinchu (TW); Chia Chun Hung, Hsinchu (TW); and Hou Wei Lin, Hsinchu (TW)
Assigned to Realtek Semiconductor Corp., Hsinchu (TW)
Filed by Realtek Semiconductor Corp., Hsinchu (TW)
Filed on Jul. 21, 2022, as Appl. No. 17/870,143.
Application 17/870,143 is a division of application No. 17/026,393, filed on Sep. 21, 2020, granted, now 11,412,576.
Claims priority of provisional application 62/909,783, filed on Oct. 3, 2019.
Claims priority of application No. 109127184 (TW), filed on Aug. 11, 2020.
Prior Publication US 2022/0361287 A1, Nov. 10, 2022
Int. Cl. H04W 56/00 (2009.01); H04W 88/04 (2009.01); H04W 4/80 (2018.01); H04W 24/08 (2009.01)
CPC H04W 88/04 (2013.01) [H04W 4/80 (2018.02); H04W 24/08 (2013.01); H04W 56/001 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A multi-member Bluetooth device (100) utilized to operably conduct data transmission with a remote Bluetooth device (102), 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); and
a first control circuit (117), coupled with the first Bluetooth communication circuit (111) and the first packet parsing circuit (113); and
an auxiliary Bluetooth circuit (120), arranged to selectably operate at a sniffing mode or a relay mode, the 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); and
a second control circuit (127), coupled with the second Bluetooth communication circuit (121) and the second packet parsing circuit (123);
wherein in a period during which the auxiliary Bluetooth circuit (120) operates at the relay mode, the first control circuit (117) utilizes the first Bluetooth communication circuit (111) to receive packets transmitted from the remote Bluetooth device (102), and utilizes the first Bluetooth communication circuit (111) to forward received packets to the auxiliary Bluetooth circuit (120), and the second control circuit (127) utilizes the second Bluetooth communication circuit (121) to receive packets forwarded from the first Bluetooth communication circuit (111), but the second control circuit (127) does not utilize the second Bluetooth communication circuit (121) to sniff packets issued from the remote Bluetooth device (102);
in a situation of that a signal reception quality indicator of the second Bluetooth communication circuit (121) is superior to a predetermined indicator value, the auxiliary Bluetooth circuit (120) switches from the relay mode to the sniffing mode; and
in a period during which the auxiliary Bluetooth circuit (120) operates at the sniffing mode, the first control circuit (117) utilizes the first Bluetooth communication circuit (111) to receive the packets transmitted from the remote Bluetooth device (102), and the second control circuit (127) utilizes the second Bluetooth communication circuit (121) to sniff the packets issued from the remote Bluetooth device (102).