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    12.
    发明专利
    未知

    公开(公告)号：DE69331614D1

    公开(公告)日：2002-04-04

    申请号：DE69331614

    申请日：1993-06-02

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： DVORKIS PAUL ,  THOMAS RALPH ,  GOREN DAVID ,  FULLER ROBERT ,  GOLDNER LEONARD H

    IPC: G06K7/015 ,  G06F3/033 ,  G06K7/10

    Abstract: To read optically encoded information over a wide range of densities, the present invention provides a spacer system on the tip of an optical reader. The optical reader may be a contact wand type device, for example including a fixed laser emitter. Alternatively, the optical reader may be a moving spot scanner. In either case, the emitter element of the optical reader produces a diverging beam of light. During a reading operation, the spacer contacts the object surface on which optically encoded indicia is formed. The spacer selectively defines at least two different distances between the light emitter, or the focal point of the emitted beam of light, and the object surface. Because of the beam divergence, the diameter of the beam at its point of impact on the object surface will be different for each of the two different distances. The different beam diameters provide the optical reader with different effective sensing spots for reading different density symbols. The present invention also incorporates an optical reader, typically a moving spot laser scanner, into a number of different types of computer data input devices, such as the stylus of a digitizer table and a computer "mouse." In one such integrated terminal embodiment, the optical reader is combined with a touch sensitive display and data input device.

    13.
    发明专利
    未知

    公开(公告)号：AT178419T

    公开(公告)日：1999-04-15

    申请号：AT91110750

    申请日：1991-06-28

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： METLITSKY BORIS ,  SWARTZ JEROME ,  BARKAN EDWARD ,  SHEPARD HOWARD M ,  GOREN DAVID ,  BIUSO TONY

    IPC: G02B26/10 ,  G06K7/10

    Abstract: A portable scanning head emits and receives light from a light-emitting diode (10) to read symbols, such as bar-code symbols. The optics (12,18) within the scanner are operative for focusing a light beam (11) and the view of a light sensor (17) in different planes (13,22) exteriorly of a scanner housing. Imaging means are provided in the unit for imaging a viewing window. The viewing window has an area smaller than that of the scan spot. The system can employ an LED (10) as a light source and tolerate the relatively large-sized (on the order of millimeters) scan spot without sacrificing reading performance since the photodiode (17) "sees" only that portion of the scan spot visible through the viewing window.

    17.
    发明专利
    未知

    公开(公告)号：DE69938447D1

    公开(公告)日：2008-05-15

    申请号：DE69938447

    申请日：1999-12-17

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： GERNERT ALEX M ,  VESUNA SAROSH ,  GOREN DAVID

    IPC: H04M1/253 ,  H04M3/00 ,  H04M7/00 ,  H04M11/00 ,  H04W76/04 ,  H04W84/12 ,  H04W88/16 ,  H04W92/02

    Abstract: An apparatus for interfacing a wireless local area network with a wide area, cellular or public switched telephone network including the function of a wireless LAN base station or access point, and a gateway. The interface may contain one or more different types of gateways, including a PSTN voice gateway, an analog modem gateway, and others. The apparatus may also include a well designed to receive the handset or mobile computer device to recharge the battery as well as to automatically transfer data when the phone or device is secured in the well.

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