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    Multi-member bluetooth device capable of dynamically switching operation mode
    3.
    发明授权
    Multi-member bluetooth device capable of dynamically switching operation mode 有权

    公开(公告)号：US11570081B2

    公开(公告)日：2023-01-31

    申请号：US17026448

    申请日：2020-09-21

    Applicant: Realtek Semiconductor Corp.

    Inventor： Yi-Cheng Chen ,  Kuan-Chung Huang ,  Chia Chun Hung ,  Hou Wei Lin

    IPC: H04L43/12 ,  H04L43/18 ,  H04W4/80 ,  H04W84/18

    Abstract: A multi-member Bluetooth device for communicating data with a remote Bluetooth device is disclosed including: a main Bluetooth circuit and an auxiliary Bluetooth circuit. In the period during which the auxiliary Bluetooth circuit operates at a sniffing mode, the auxiliary Bluetooth circuit sniffs packets transmitted from the remote Bluetooth device while the main Bluetooth circuit receives packets issued from the remote Bluetooth device, and the auxiliary Bluetooth circuit switches from the sniffing mode to a relay mode if the throughput of packets sniffed by the auxiliary Bluetooth circuit is lower than a predetermined threshold. In the period during which the auxiliary Bluetooth circuit operates at the relay mode, the main Bluetooth circuit receives packets transmitted from the remote Bluetooth device and forwards the received packets to the auxiliary Bluetooth circuit, and the auxiliary Bluetooth circuit does not sniff packets issued from the remote Bluetooth device.

    Multi-member bluetooth device capable of adaptively switching operation mode in response to data type change of received packets
    4.
    发明授权
    Multi-member bluetooth device capable of adaptively switching operation mode in response to data type change of received packets 有权

    公开(公告)号：US10999728B2

    公开(公告)日：2021-05-04

    申请号：US17030974

    申请日：2020-09-24

    Applicant: Realtek Semiconductor Corp.

    Inventor： Yi-Cheng Chen ,  Kuan-Chung Huang ,  Chia Chun Hung ,  Hou Wei Lin

    IPC: H04W4/80 ,  H04W40/22 ,  H04W88/06

    Abstract: A multi-member Bluetooth device for communicating data with a remote Bluetooth device is disclosed including: a main Bluetooth circuit and an auxiliary Bluetooth circuit. In the period during which the auxiliary Bluetooth circuit operates at a relay mode, the main Bluetooth circuit receives packets transmitted from the remote Bluetooth device, and the auxiliary Bluetooth circuit does not sniff packets transmitted from the remote Bluetooth device. But the auxiliary Bluetooth circuit switches from the relay mode to a sniffing mode if the data type of packets transmitted from the remote Bluetooth device changes. In the period during which the auxiliary Bluetooth circuit operates at the sniffing mode, the auxiliary Bluetooth circuit sniffs packets issued from the remote Bluetooth device while the main Bluetooth circuit receives packets transmitted from the remote Bluetooth device.

    Audio dose monitoring circuit
    9.
    发明授权
    Audio dose monitoring circuit 有权

    公开(公告)号：US12271654B2

    公开(公告)日：2025-04-08

    申请号：US17691283

    申请日：2022-03-10

    Applicant: Realtek Semiconductor Corp.

    Inventor： Yu Wei Liu ,  Chi Wu ,  Chia Chun Hung

    IPC: G06F3/16 ,  H04R3/00

    Abstract: An audio dose monitoring circuit includes: a sound level measuring circuit arranged to operably generate multiple sound level values, wherein the multiple sound level values respectively correspond to the sound levels generated by an audio playback device at multiple time points or the sound levels received by a microphone at multiple time points; an audio dose calculating circuit coupled with the sound level measuring circuit and arranged to operably generate an audio dose value corresponding to a measuring period based on the multiple sound level values and contents of a weighting table; a control circuit coupled with the audio dose calculating circuit and arranged to operably compare the audio dose value with a dose threshold to determine whether to generate a control signal or not; and an indication signal generating circuit coupled with the control circuit and arranged to operably generate a corresponding indication signal according to the control signal.

    Bluetooth communication system and related bluetooth devices capable of initiating auto-pairing procedure without using bluetooth advertising packets
    10.
    发明授权
    Bluetooth communication system and related bluetooth devices capable of initiating auto-pairing procedure without using bluetooth advertising packets 有权

    公开(公告)号：US11700521B2

    公开(公告)日：2023-07-11

    申请号：US17529676

    申请日：2021-11-18

    Applicant: Realtek Semiconductor Corp.

    Inventor： Chia Chun Hung

    IPC: H04B7/00 ,  H04W4/80 ,  H04W76/14

    CPC classification number: H04W4/80 ,  H04W76/14

    Abstract: A Bluetooth communication system includes: an inquirer-side Bluetooth device arranged to operably generate and transmit a Bluetooth inquiry request; and a requester-side Bluetooth device arranged to operably receive and parse the Bluetooth inquiry request, and to operably generate and transmit a Frequency Hop Synchronization (FHS) packet containing a requester-side Bluetooth address and an Extended Inquiry Response (EIR) packet containing an auto-pairing request to the inquirer-side Bluetooth device. The inquirer-side Bluetooth device conducts an auto-pairing procedure with the requester-side Bluetooth device according to the contents of FHS packet and the EIR packet, but the inquirer-side Bluetooth device and the requester-side Bluetooth device does not switch to operating modes for transmitting or receiving Bluetooth advertising packets before conducting the auto-pairing procedure.

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