Characterization of a Venting State or Other System Parameter that Affects the Characterization of a Force Applied to a Device

    公开(公告)号:US20200371657A1

    公开(公告)日:2020-11-26

    申请号:US16847460

    申请日:2020-04-13

    Applicant: Apple Inc.

    Abstract: An electronic device includes a pressure sensor and a processor. The pressure sensor is disposed within an interior volume of the electronic device and configured to generate a time-dependent sequence of measurements related to a force applied to the electronic device. The processor is configured to characterize, using at least the time-dependent sequence of measurements, a venting state of the interior volume. In some embodiments, the electronic device may also include a capacitive force sensor disposed to detect distortion of the interior volume. A second time-dependent sequence of measurements related to the force may be generated by the capacitive force sensor, and used by the processor to characterize the venting state of the interior volume.

    System and method of noise mitigation for improved stylus detection

    公开(公告)号:US11842011B2

    公开(公告)日:2023-12-12

    申请号:US17027285

    申请日:2020-09-21

    Applicant: Apple Inc.

    CPC classification number: G06F3/04182 G06F3/04162 G06F3/0441 G06F2203/04106

    Abstract: A touch screen or touch sensor panel can detect touches by conductive objects (e.g., fingers) and an active stylus and can mitigate noise in the sensed stylus signal from multiple noise sources. In some examples, the touch sensor panel includes a plurality of touch electrodes that can be used to sense touch data indicative of a proximate conductive object and to sense stylus data. The stylus data can include noise from one or more sources, for example. In some examples, the electronic device uses the touch data to determine a characteristic of one of the sources of noise and the stylus data to determine another characteristic of the source of noise and one or more characteristics of another source of noise. After modeling the noise, the electronic device can remove the noise from the stylus data to improve the accuracy of the stylus scan.

Patent Agency Ranking