DEVICE, SYSTEM, AND METHOD FOR DETECTING HUMAN PRESENCE

    公开(公告)号:US20180157376A1

    公开(公告)日:2018-06-07

    申请号:US15367780

    申请日:2016-12-02

    Abstract: An embodiment device includes an optical source configured to transmit an optical pulse and an optical sensor configured to receive a reflection of the optical pulse. The device further includes a processor configured to determine a parameter based on the reflection, the parameter indicative of a distance between the device and a target; and a controller configured to generate a first control signal based on the parameter, the first control signal being configured to control an operation of the optical source.

    Upstream signal capture and processing in a subscriber device

    公开(公告)号:US09948981B2

    公开(公告)日:2018-04-17

    申请号:US15078825

    申请日:2016-03-23

    Abstract: An upstream signal capture device includes a signal capture circuit having a first port and a second port. The first port of the signal capture circuit is arranged for coupling to a diplexer. The upstream signal capture device also includes an amplifier having a first port and a second port, the first port of the amplifier coupled to the second port of the signal capture circuit, and an analog-to-digital converter (ADC) having a first port and a second port, the first port of the ADC coupled to the second port of the amplifier. The upstream signal capture device further includes a digital threshold detector having an input and output, the input of the digital threshold detector coupled to the second port of the analog-to-digital converter, and a memory configured to capture samples of the upstream signal. When using the upstream signal capture device to capture an upstream signal, a portion of an upstream signal is diverted into an analog-to-digital converter (ADC). A portion of the upstream signal is converted into a digital signal, and when the digital signal exceeds a threshold, the signal is captured in a memory.

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