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    Keyless keyboard with force sensing and haptic feedback
    12.
    发明授权
    Keyless keyboard with force sensing and haptic feedback 有权

    公开(公告)号：US11500538B2

    公开(公告)日：2022-11-15

    申请号：US15692810

    申请日：2017-08-31

    Applicant: Apple Inc.

    Inventor： Alex J. Lehmann ,  Chang Zhang ,  Dayu Qu ,  Kenneth M. Silz ,  Paul X. Wang ,  Qiliang Xu ,  Zheng Gao ,  Scott J. McEuen ,  Reza Nasiri Mahalati

    IPC: G06F3/04886 ,  G06F3/01 ,  G06F3/04883

    Abstract: An input device for an electronic device includes an enclosure and a top member defining an input surface having multiple differentiated input regions. The input device further includes a first force sensing system associated with a first area of the top member and including a first group of the differentiated input regions, and a second force sensing system associated with a second area of the top member and including a second group of the differentiated input regions. The input device further includes a touch sensing system configured to determine which input region from the first group of the differentiated input regions corresponds to the first force input and to determine which input region from the second group of the differentiated input regions corresponds to the second force input.

    OPTICAL KEYBOARDS
    16.
    发明申请
    OPTICAL KEYBOARDS 审中-公开

    公开(公告)号：US20190354196A1

    公开(公告)日：2019-11-21

    申请号：US16529638

    申请日：2019-08-01

    Applicant: Apple Inc.

    Inventor： Paul X. Wang ,  Daniel J. Drusch ,  Chang Zhang

    IPC: G06F3/02 ,  G06F3/03

    Abstract: Aspects of the subject technology relate to electronic devices with input devices. An input device may include a button or a key of a keyboard that uses a light sensor to detect key press events. The light sensor may detect changes in an amount of received light caused by actuation of a keycap of the button or key. The button or key may include an opaque structure that blocks a portion of the light when the key is compressed. The button or key may include a light source such as a light-emitting diode that generates light. A portion of the light from the light source may illuminate the key or button to provide backlight for the key and another portion may be received by the light sensor for detecting partial or complete compression of the button or key.

    Optical keyboards
    17.
    发明授权
    Optical keyboards 有权

    公开(公告)号：US10394341B1

    公开(公告)日：2019-08-27

    申请号：US15426002

    申请日：2017-02-06

    Applicant: Apple Inc.

    Inventor： Paul X. Wang ,  Daniel J. Drusch ,  Chang Zhang

    IPC: G06F3/02 ,  G06F3/03

    Abstract: Aspects of the subject technology relate to electronic devices with input devices. An input device may include a button or a key of a keyboard that uses a light sensor to detect key press events. The light sensor may detect changes in an amount of received light caused by actuation of a keycap of the button or key. The button or key may include an opaque structure that blocks a portion of the light when the key is compressed. The button or key may include a light source such as a light-emitting diode that generates light. A portion of the light from the light source may illuminate the key or button to provide backlight for the key and another portion may be received by the light sensor for detecting partial or complete compression of the button or key.

    Location-Independent Force Sensing Using Differential Strain Measurement
    20.
    发明申请
    Location-Independent Force Sensing Using Differential Strain Measurement 审中-公开

    公开(公告)号：US20170090655A1

    公开(公告)日：2017-03-30

    申请号：US15264565

    申请日：2016-09-13

    Applicant: Apple Inc.

    Inventor： Chang Zhang ,  Dayu Qu ,  Lei Ma

    IPC: G06F3/041

    Abstract: A force sensor for detecting a force on a surface of a device. The force sensor may include a force-receiving layer and a substrate disposed below the force-receiving layer. A first force-sensitive component may be disposed on a surface of the substrate, and a second force-sensitive component may be disposed proximate to the first force-sensitive component. In some embodiments, sensor circuitry may be operatively coupled to the first and second force-sensitive components, and configured to compare a relative electrical response between the first force-sensitive component and the second force-sensitive component to compute a force estimate. The force estimate may compensate for a variation in response based on the location of the components relative to a location of the force.

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