ULTRASONIC COMMUNICATION SYSTEM WITH INDEPENDENT VOLUME CONTROL FOR AN AUDIBLE FREQUENCY RANGE

    公开(公告)号:US20190258453A1

    公开(公告)日:2019-08-22

    申请号:US16398928

    申请日:2019-04-30

    Abstract: An embodiment of an audio controller device includes technology to control an output of a first audio signal from an audio output device in a human interface frequency range, where the human interface frequency range includes frequencies audible to humans, and control an output of a second audio signal from the audio output device in a device interface frequency range independent from the output of the first audio signal, where the device interface frequency range includes frequencies above an upper limit of the human interface frequency range. Other embodiments are disclosed and claimed.

    Filling the space-time channels in SDMA
    24.
    发明授权
    Filling the space-time channels in SDMA 有权
    填写SDMA中的空时通道

    公开(公告)号:US09584239B2

    公开(公告)日:2017-02-28

    申请号:US14219271

    申请日:2014-03-19

    Abstract: Embodiments of the present invention provide an Access Point (AP) to transmit and receive RF signals in a wireless local area network (WLAN), comprising, a processor to process the RF signals, a scheduler to schedule data packets that may have differing lengths for transmission to selected mobile stations, a Radio Frequency (RF) transceiver to receive and transmit the RF signals using space-time channels, and a code rate adjuster to adjust a code rate of Forward Error-Correction (FEC) codes in the packets to fill the space-time channels.

    Abstract translation: 本发明的实施例提供了一种在无线局域网(WLAN)中发送和接收RF信号的接入点(AP),其包括处理RF信号的处理器,调度器调度可能具有不同长度的数据分组 传输到选定的移动台,射频(RF)收发信机使用时空信道接收和发送RF信号,以及码率调整器,以调整分组中的前向纠错(FEC)码的码率以填充 时空频道。

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