中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

61 records (took 0.023 seconds)

    33.
    发明专利
    未知

    公开(公告)号：DE60130950D1

    公开(公告)日：2007-11-29

    申请号：DE60130950

    申请日：2001-08-31

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： DVORKIS PAUL ,  BARKAN EDWARD ,  LI YAJUN

    IPC: G02B26/08 ,  G06K7/10 ,  G02B17/08 ,  G02B26/10 ,  G06K7/015

    Abstract: A compact assembly for electro-optically scanning indicia includes an oscillatable component operative for focusing, and for sweeping, a light beam across the indicia and, optionally, for correcting for scan aberration. A laser diode for emitting the beam is inserted into a central opening surrounded by an electromagnetic coil to conserve space. A magnet on the component interacts with the coil to effect oscillation. A floating flexure returns the component to an equilibrium position.

    35.
    发明专利
    未知

    公开(公告)号：DE69431280T2

    公开(公告)日：2003-05-08

    申请号：DE69431280

    申请日：1994-11-10

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： SWARTZ JEROME ,  LI YAJUN ,  DVORKIS PAUL ,  SPITZ GLENN

    IPC: G06K7/10 ,  G06K7/14

    Abstract: A plurality of the areas of different light reflectivity of a bar code symbol, or the like, are simultaneously illuminated, using, e.g., a beam of laser light that has an elongated cross-section. The laser light beam is swept over the symbol in a direction transverse to the elongated dimension of the illuminated region so that a two-dimensional area of the symbol is illuminated over time, until the symbol is read. The light that reflects from the illuminated region of the symbol is imaged on a linear sensor array, which is then scanned or read out to produce signals representative of spatial intensity variations of the imaged light along a linear path in the field of view.

    36.
    发明专利
    未知

    公开(公告)号：DE69431280D1

    公开(公告)日：2002-10-10

    申请号：DE69431280

    申请日：1994-11-10

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： SWARTZ JEROME ,  LI YAJUN ,  DVORKIS PAUL ,  SPITZ GLENN

    IPC: G06K7/10 ,  G06K7/14

    Abstract: A plurality of the areas of different light reflectivity of a bar code symbol, or the like, are simultaneously illuminated, using, e.g., a beam of laser light that has an elongated cross-section. The laser light beam is swept over the symbol in a direction transverse to the elongated dimension of the illuminated region so that a two-dimensional area of the symbol is illuminated over time, until the symbol is read. The light that reflects from the illuminated region of the symbol is imaged on a linear sensor array, which is then scanned or read out to produce signals representative of spatial intensity variations of the imaged light along a linear path in the field of view.

    37.
    发明专利
    未知

    公开(公告)号：DE69522863D1

    公开(公告)日：2001-10-31

    申请号：DE69522863

    申请日：1995-06-30

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： LI YAJUN ,  DORAN ROBERT ,  BARILE JOHN

    IPC: G06K7/015 ,  G06K7/10 ,  H01J3/16 ,  G02B26/10

    Abstract: An electro-optical scanning device reads indicia having parts of different light reflectivity, including bar codes and matrix arrays such as UPSCODES. The scanning device includes laser or light emitting diodes for emitting at least two light beams of the same or different wavelengths. The light beams may be visible to the human eye, and the beams are optically directed to form one or two scan lines to scan portions of a symbol. Dual photosensor(s) or a charge coupled device detects light reflected from the different portions of the symbol. The charge coupled device can be used to detect either reflected ambient light or the reflected visible light from the beams emitted by the diodes. The photosensors generate signals corresponding to the detected light which can be processed simultaneously. The device is particularly useful in reading two dimensional or more complex symbols. Methods for reading indicia are also described.

    39.
    发明专利
    未知

    公开(公告)号：ES2149184T3

    公开(公告)日：2000-11-01

    申请号：ES93109378

    申请日：1993-06-11

    Applicant: SYMBOL TECHNOLOGIES INC

    Inventor： BARD SIMON ,  LI YAJUN ,  SWARTZ JEROME ,  METLITSKY BORIS ,  KATZ JOSEPH ,  STRATIENCO ASKLOD

    IPC: G02B26/10 ,  G06F1/16 ,  G06F3/033 ,  G06K7/10 ,  G07F7/02 ,  G07G1/00

    Abstract: To reduce the size and weight of an optical scanner, the present invention provides a mirrorless beam scanning unit. In some embodiments, the light emitter itself moves back and forth, and in other embodiments the objective lens reciprocates laterally in front of the light emitter. For example, a flexible support structure, such as one or more strips of mylar, movably mounts the objective lens in front of the light emitter. The objective lens is laterally reciprocated in response to a motive force, for example as might be applied by a combination of a permanent magnet coupled to the objective lens and a fixedly mounted electromagnet driven by an alternating current signal. Reciprocation of the objective lens during emission of light by the light emitter causes the light to scan a surface, such as a surface bearing a bar code label.

Patent Agency Ranking