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    PORTABLE LASER SCANNING SYSTEM AND SCANNING METHODS
    1.
    发明专利
    PORTABLE LASER SCANNING SYSTEM AND SCANNING METHODS 未知

    公开(公告)号：CA1154872A

    公开(公告)日：1983-10-04

    申请号：CA371938

    申请日：1981-02-27

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： SWARTZ JEROME ,  BARKAN EDWARD ,  HARRISON SHELLEY A

    IPC: G02B26/10 ,  G06K7/00 ,  G06K7/10 ,  G06K7/14

    Abstract: PORTABLE LASER SCANNING SYSTEM AND SCANNING METHODS An entirely field-portable laser scanning system for reading bar code symbols includes a light-weight and small-sized laser scanning head. The laser source, power supply component, optics, scanning elements, sensor circuit, and signal processing circuitry are specially designed for minimal size and weight and volume such that they can all be mounted in the head. The head can be bracket-mounted or hand-held. The housing for the head can be provided with a handle grip, or can be gun-shaped. Highspeed oscillating scanning motors and/or penta-bimorph scanners are used as scanning elements. A trigger initiates repetitive scanning of each object bearing a symbol, and an indicator indicates when the scanning of that particular object has been terminated. A body harness supports the remaining scanner system circuitry. A non-bulky, freely-movable cable interconnects the head to the body harness. Methods of scanning the symbol and of operating the system are also disclosed.

    6.
    发明专利
    未知

    公开(公告)号：DE2838243A1

    公开(公告)日：1980-01-03

    申请号：DE2838243

    申请日：1978-09-01

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： SWARTZ JEROME ,  HARRISON SHELLEY A ,  BARKAN EDWARD ,  DELFINE FRANK ,  BROWN GEORGE

    IPC: G06K7/10 ,  G06K9/02 ,  G11B7/00

    Abstract: Laser light reflected from a bar code symbol pattern is detected by a photodetector mounted in a portable scanning head of a laser scanning system. By selecting appropriate threshold values on the analog signal generated by the photodetector, the analog signal is converted to a series of pulses, each pulse width accurately corresponding to the width of a bar from the scanned pattern. A plurality of functions can be determined from the series of pulses, each function being independently selected by keyboard entry from the head, displayed on the head, and/or recorded by a printer remote from the head. Single line or multiple line scans in two orthogonal directions relative to the pattern may be selected. A bimorph or speaker-type oscillatory element may be utilized as a miniature scanning element. Circuitry for synchronizing scanning along both axes, and for generating a signal to drive the bimorph in a uniform, constant velocity manner is also disclosed.

    PORTABLE LASER SCANNING SYSTEM AND SCANNING METHOD
    9.
    发明专利
    PORTABLE LASER SCANNING SYSTEM AND SCANNING METHOD 未知

    公开(公告)号：CA1173103A

    公开(公告)日：1984-08-21

    申请号：CA431959

    申请日：1983-07-06

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： SWARTZ JEROME ,  BARKAN EDWARD ,  HARRISON SHELLEY A

    IPC: H02K33/12 ,  G02B27/17

    Abstract: PORTABLE LASER SCANNING SYSTEM AND SCANNING METHOD An entirely field-portable laser scanning system for reading bar code symbols includes a light-weight and small-sized laser scanning head. The laser source, power supply component, optics, scanning elements, sensor circuit, and signal processing circuitry are specially designed for minimal size and weight and volume such that they can all be mounted in the head. The head can be bracket-mounted or hand-held. The housing for the head can be provided with a handle grip, or can be gun-shaped. Highspeed oscillating scanning motors and/or penta-bimorph scanners are used as scanning elements. A trigger initiates repetitive scanning of each object bearing a symbol, and an indicator indicates when the scanning of that particular object has been terminated. A body harness supports the remaining scanner system circuitry. A non-bulky, freely-movable cable interconnects the head to the body harness. Methods of scanning the symbol and of operating the system are also disclosed.

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