Touch device and control method thereof

    公开(公告)号:US10684723B2

    公开(公告)日:2020-06-16

    申请号:US16167836

    申请日:2018-10-23

    Abstract: A touch device includes a touch sensing unit, a processing unit, an embedded controller and a digital controller. The touch sensing unit has a first control mode and a second control mode, and senses a touch event from a touch stylus. The embedded controller is coupled to the processing unit. The digital controller is coupled to the touch sensing unit, the embedded controller and the processing unit, and receives a general-purpose input/output (GPIO) signal from the embedded controller. When the GPIO signal is in a first value, the digital controller reports the first control mode to the processing unit. When the GPIO signal is in a second value, the digital processor reports the second control mode to the processing unit. Thus, the performance of the touch device and the touch stylus is improved.

    Power delivery device and control method of power supply path

    公开(公告)号:US12199388B2

    公开(公告)日:2025-01-14

    申请号:US17980497

    申请日:2022-11-03

    Abstract: A control method of a power supply path includes detecting a plug-in state of a first connector through a configuration channel pin of the first connector; acquiring a plurality of rated voltages of a first power adaptor externally connected to the first connector and a rated current corresponding to each of the rated voltages; detecting a plug-in state of a second connector through a direct-current (DC) input pin of the second connector; acquiring a power quota of a second power adaptor externally connected to the second connector; selecting, from the plurality of rated voltages, the largest one that is not greater than an operating voltage, as a selected rated voltage; calculating a power quota of the selected rated voltage; and controlling a switching circuit to couple a power circuit to a power pin of one of the first and second connectors according to the two power quotas.

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