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    5.
    发明专利
    未知

    公开(公告)号：DE3687568T2

    公开(公告)日：1993-07-15

    申请号：DE3687568

    申请日：1986-10-20

    Applicant: IBM

    Inventor： CASWELL NATHAN SAUNDERS ,  GARWIN RICHARD LAWRENCE ,  LEVINE JAMES LEWIS

    IPC: G06F3/042 ,  G06F3/033 ,  G06K11/08 ,  G01S17/46 ,  G01B11/00 ,  G01S17/88

    Abstract: The location of an object in a work area is established by sweeping a single light beam over the area and employing in coordinate calculations the rotational arc of the light source, and the serial events of the light variation when the beam as reflected from a mirror positioned on the opposite periphery intersects the object and the light variation when the beam directly intersects the object.

    FORCE-POSITION-SENSING IN A DATA INPUT DEVICE
    6.
    发明专利
    FORCE-POSITION-SENSING IN A DATA INPUT DEVICE 未知

    公开(公告)号：DE3466301D1

    公开(公告)日：1987-10-22

    申请号：DE3466301

    申请日：1984-05-03

    Applicant: IBM

    Inventor： GARWIN RICHARD LAWRENCE ,  LEVINE JAMES LEWIS

    IPC: G06K11/06 ,  G06F3/033 ,  G06F3/041 ,  G06F3/048

    Abstract: Data can be entered at the face of a CRT display of a computer system by an operator who presses his finger at any selected location on a faceplate overlying the CRT. The faceplate is supported by spaced piezoelectric elements, and their collective outputs are processed to identify the point of application of finger pressure on the faceplate, and hence the identity of data to be entered. The technique of processing the collective outputs includes features to give accurate identification of the point of application of force.

    8.
    发明专利
    未知

    公开(公告)号：DE2750261A1

    公开(公告)日：1978-05-24

    申请号：DE2750261

    申请日：1977-11-10

    Applicant: IBM

    Inventor： GARWIN RICHARD LAWRENCE ,  LEVINE JAMES LEWIS

    IPC: H04N3/02 ,  G02B26/10 ,  G02B26/12 ,  G09G3/00 ,  G09G3/02 ,  H04N3/08 ,  G02B27/18

    Abstract: A system for producing a two-dimensional multiple line display by scanning a single source or a plurality of linearly arrayed sources with a first rotating or nutating reflective element to reflect the single source or the plurality of independent sources across a screen to produce a display consisting of a single line array in the case of a single source or a band of lines in the case of a plurality of sources. A second rotating or nutating reflective element is employed to reflect the display on the screen to produce a two-dimensional multiple line image of the single line display or a two-dimensional multiple band array of the band of lines.

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