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Bluetooth communication system capable of increasing generation efficiency of cypher keys required for data transmission between Bluetooth host device and Bluetooth device set, and related Bluetooth device set

專利號(hào)
US11997480B2
公開(kāi)日期
2024-05-28
申請(qǐng)人
Realtek Semiconductor Corp.（TW Hsinchu）
發(fā)明人
Yu Hsuan Liu; Yung Chieh Lin; Po Sheng Chiu
IPC分類
H04W12/041; G06F3/0482; H04L9/08; H04L9/14; H04W4/80; H04W8/00; H04W12/03; H04W12/037; H04W12/0471; H04W12/50; H04W12/55; H04W76/15; H04W84/18
技術(shù)領(lǐng)域
bluetooth,cypher,device,member,host,key,circuit,first,operably,second
地域： Hsinchu

摘要

A Bluetooth communication system includes: a Bluetooth host device; and a Bluetooth device set which including a first member device and a second member device. The first member device transmits a device information of the first member device to the Bluetooth host device. The Bluetooth host device controls a display device to display a candidate device list, and to display a single device item in the candidate device list to represent the Bluetooth device set, but does not simultaneously display two device items in the candidate device list to represent the first member device and the second member device. The Bluetooth host device further establishes a connection with the first member device to conduct pairing procedure to generate a first cypher key after receiving a selection command. The first member device further establishes a connection with the Bluetooth host device to conduct pairing procedure to generate a second cypher key.

說(shuō)明書(shū)

In the operation 216, the first control circuit 125 of the first member device 120 may generate a second cypher key Key-2 required for conducting subsequent Bluetooth data transmissions with the Bluetooth host device 110 according to the first parameter P1. In other words, the second cypher key Key-2 generated by the first control circuit 125 and the first cypher key Key-1 generated by the processing circuit 117 will correspond to each other. For example, the first control circuit 125 may execute the aforementioned predetermined cypher key algorithm to generate the second cypher key Key-2 according to the first parameter P1 and the device information of the first member device 120. For another example, the first control circuit 125 may execute the aforementioned predetermined cypher key algorithm to generate the second cypher key Key-2 according to the first parameter P1, the device information of the first member device 120, and the device information of the Bluetooth host device 110.

權(quán)利要求

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