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    LASER SANNER
    1.
    发明专利
    LASER SANNER 失效

    公开(公告)号：JPH02288988A

    公开(公告)日：1990-11-28

    申请号：JP7316690

    申请日：1990-03-22

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： JIEROOMU SUWAATSU ,  EDOWAADO BAAKAN ,  SHIERII EI HARISON

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

    Abstract: PURPOSE: To use a laser scanner even for a bar code of a two-dimensional array by providing a means which causes a scanning means to perform raster scanning. CONSTITUTION: The scanning means successively shakes maser light in first and second directions crossing each other to form a raster scanning pattern. That is, a Y-axis scanning motor 70 is driven synchronously with operation of an X-axis scanning motor 68 to drive a mirror 78 at a uniform speed when a bar code of a two-dimensional array is read. As the result, laser light is linearly displaced in the vertical direction, and the raster scanning pattern is formed on a reference face. This scanning pattern consists of approximately parallel scanning line groups of regular intervals which are bundled one by one in the vertical direction. Thus, the bar code of a two-dimensional array is read.

    HANDHELD BAR CODE READER
    2.
    发明专利
    HANDHELD BAR CODE READER 失效

    公开(公告)号：JPH02282880A

    公开(公告)日：1990-11-20

    申请号：JP7316890

    申请日：1990-03-22

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： JIEROOMU SUWAATSU ,  EDOWAADO BAAKAN ,  SHIERII EI HARISON

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

    Abstract: PURPOSE: To use a relatively small-sized laser light source to operate the device with a low voltage by providing a semiconductor laser diode which is supported on a laser scanning head and generates laser light and holding the scanning head in a position distant from a bar code to read the bar code. CONSTITUTION: A small-sized light source means for generation of laser light consists of a semiconductor laser diode 200 and is attached to a body part 14 with a supporting plate 30 between them by rubber bands 36 and 38. DC power of 12V for the laser diode 200 is led into the inner chamber of a handle part 12 through a cable 58. This 12V DC power supplies proper anode voltage and anode current to the anode of the laser diode 200. The cathode of the laser diode 200 is earthed. Thus, the device itself is small-sized and light-weight, and the laser diode is operated with a low-voltage power source, and therefore, the power source part is made light-weight and small-sized, and not only insulation is facilitated but also the device is made small-sized and light-weight furthermore.

    PORTABLE BAR CODE READER
    3.
    发明专利
    PORTABLE BAR CODE READER 失效

    公开(公告)号：JPH02282879A

    公开(公告)日：1990-11-20

    申请号：JP7316790

    申请日：1990-03-22

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： JIEROOMU SUWAATSU ,  EDOWAADO BAAKAN ,  SHIERII EI HARISON

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

    Abstract: PURPOSE: To eliminate the restriction of a using place by providing a decoding means decoding an electric signal from a detection means and a power source means within a portable pack different from a scanning hand and connecting the scanning head and the pack through a flexible electrically connecting means. CONSTITUTION: A portable laser scanning head 10 includes a gun-shaped housing with a handle part 12 and a waist part 14. The portable head 10 is connected with the other elements through a flexible and not-bulky cable 58. As the other elements a computer circuit for decoding a digital signal, a data storing circuit, etc., are included and a power source 50 and a controlling power source for a control circuit are included to be incorporated in an appointment which a user wears. An analog electric signal is formed from a reflected beam from a bar code and this analog electric signal is converted to a digital electric signal to be sent to the outside of the scanning head in the form of a digital signal. Thereby the user does not receive the restriction of the using place.

    HAND-HELD LASER SCANNER
    4.
    发明专利
    HAND-HELD LASER SCANNER 失效

    公开(公告)号：JPH02288986A

    公开(公告)日：1990-11-28

    申请号：JP7316490

    申请日：1990-03-22

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： JIEROOMU SUWAATSU ,  EDOWAADO BAAKAN ,  SHIERII EI HARISON

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

    Abstract: PURPOSE: To easily scan a bar code by grasping the handle part of a head to operate a trigger toward the bar code with the front end of the body part off the bar code. CONSTITUTION: A user grasps a handle part 12 of the scanning head in his hand and directs the front end of a body part 14 toward the bar code and operates a trigger 60 with the hand grasping the handle part 12. Consequently, laser light is emitted toward the bar code to scan the bar code. Since the scanning head is formed like a pistol, the emitting direction of laser light is easily directed to the bar code. Thus, laser light is surely exposed to the bar code.

    PORTABLE TYPE LASER SCANNER
    6.
    发明专利
    PORTABLE TYPE LASER SCANNER 失效

    公开(公告)号：JPH0380386A

    公开(公告)日：1991-04-05

    申请号：JP20160190

    申请日：1990-07-31

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： JIEROOMU SUWAATSU ,  EDOWAADO BAAKAN ,  SHIERII EI HARISON

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

    Abstract: PURPOSE: To attain the reading of a bar code mark positioned far from a scanning head by arranging a detecting means in order to detect an light beam in a direction almost parallel to a laser beam radiated from the scanning head. CONSTITUTION: A reflected light passes through an output window 62 first, passes through a transmission filter 90 for a read laser beam, and is made incident to a pair of photodiodes 86 and 88. Those photodiodes 86 and 88 are attached with a distance on a fringe 40, and generate an analog electric signal. When the visual field of a scanning means is about 4 inches, the visual field can be completely captured by separating the photodiodes 86 and 88 by 2 inches. The photodiodes 86 and 88 are arranged in a body part 14 in order to detect a light reaching a head 10 in a direction almost along the longitudinal direction of the body part 14 from among the lights reflected by a bar code mark. Thus, the bar code marks positioned far from the scanning head can be read.

    OPTICAL SCANNER
    7.
    发明专利
    OPTICAL SCANNER 失效

    公开(公告)号：JPH02288987A

    公开(公告)日：1990-11-28

    申请号：JP7316590

    申请日：1990-03-22

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： JIEROOMU SUWAATSU ,  EDOWAADO BAAKAN ,  SHIERII EI HARISON

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

    Abstract: PURPOSE: To increase the scanning speed by controlling a scanning motor by a motor control means provided with an energizing means, which energizes the shaft to the center position, and a driving means which repeatedly turns the shaft against the energizing force of the energizing means. CONSTITUTION: A motor control means 94 is provided with the driving means which gives an alternating magnetic field to a rotor 120 to repeatedly turn the rotor 120 in one direction from the rotor center position and the reverse direction against the energizing force of an energizing means 140, and the rotor 120 is rotated in each direction by an angle smaller than 360. Consequently, the rotor 120 of a scanning motor 68, a shaft 72, and a light reflection means 76 on the shaft 72 are energized to the center position by the energizing means 140, and the rotor 120 is repeatedly rotated against this energizing action when the motor control means 94 is operated. Thus, the speed of scanning for read is increased in comparison with a scanning means where the motor 68 is rotated in one direction.

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