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    Computer keyboard key scan shared matrix with an individual led per key
    1.
    发明专利
    Computer keyboard key scan shared matrix with an individual led per key 未知

    公开(公告)号：GB2523493B

    公开(公告)日：2016-10-19

    申请号：GB201508770

    申请日：2013-10-15

    Applicant: APPLE INC

    Inventor： ASIF HUSSAIN ,  MOHAMMAD J NAVABI-SHIRAZI ,  JING-DONG CHEN ,  MANISHA PANDYA

    IPC: G06F3/02

    Abstract: Systems, devices, and methods for a shared matrix of shared row pins and/or column pins between a first array of keys and a second array of lights of a keyboard. A keyboard controller addresses the first array of keys and the second array of lights during a scanning period using the shared row pins and/or column pins. Each key is backlit by one or more lights of the second array of lights that may be individually controlled. The keyboard controller may drive the desired lights of a respective row while detecting key presses of the same row during the row interval using the shared row pins and/or column pins. In some embodiments, the keyboard controller may drive the desired lights of a row during driving interval of the row interval, and scan the keys of the row separately during a sensing interval of the row interval.

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