2.
    发明专利
    未知

    公开(公告)号:CH597664A5

    公开(公告)日:1978-04-14

    申请号:CH662476

    申请日:1976-05-26

    Applicant: IBM

    Abstract: An improved tablet system is disclosed of the type having an array of X and Y dimension wires that are capacitively coupled to a pen that a user holds to the tablet to produce a position signal. Drivers are provided for individual wires to produce a selected activation pattern for the wires. The drivers are operated from a shift register and associated components that are mounted on the tablet and are connected to an associated processor through only a small number of conductors.

    TABLET SYSTEM WITH DIGITAL ACTIVATION

    公开(公告)号:CA1082334A

    公开(公告)日:1980-07-22

    申请号:CA253874

    申请日:1976-06-02

    Applicant: IBM

    Abstract: TABLET SYSTEM WITH DIGITAL ACTIVATION An improved tablet system is disclosed of the type having an array of X and Y dimension wires that are capacitively coupled to a pen that a user holds to the tablet to produce a position signal. Drivers are provided for individual wires to produce a selected activation pattern for the wires. The drivers are operated from a shift register and associated components that are mounted on the tablet and are connected to an associated processor through only a small number of conductors.

    5.
    发明专利
    未知

    公开(公告)号:DE2621337A1

    公开(公告)日:1976-12-16

    申请号:DE2621337

    申请日:1976-05-14

    Applicant: IBM

    Abstract: An improved tablet system is disclosed of the type having an array of X and Y dimension wires that are capacitively coupled to a pen that a user holds to the tablet to produce a position signal. Drivers are provided for individual wires to produce a selected activation pattern for the wires. The drivers are operated from a shift register and associated components that are mounted on the tablet and are connected to an associated processor through only a small number of conductors.

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