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    BAR CODE LABEL RECONSTRUCTION SYSTEM AND METHODOLOGIES
    63.
    发明公开
    BAR CODE LABEL RECONSTRUCTION SYSTEM AND METHODOLOGIES 有权
    系统和方法重建BAR编码标签

    公开(公告)号：EP1114390A4

    公开(公告)日：2009-07-22

    申请号：EP99946956

    申请日：1999-09-14

    申请人： DATALOGIC SCANNING INC

    发明人： DAVIS GLEN W ,  BRANDT JONATHON R ,  ATWATER CHARLES F

    IPC分类号： G06K7/14 ,  G06K7/10

    CPC分类号： G06K7/1482 ,  G06K7/14 ,  G06K7/1465 ,  G06K7/1486

    摘要： A variety of complementary methodologies may be selectively and systematically employed and are capable of reconstructing label information, such as undecodable characters or elements, where label (95) defects may prevent decoding. Such methodologies include reconstruction from partial information (Figure 2), use of edge strength indicators (Figure 4), decoding techniques based on agressiveness, and learning mode for agressiveness level. Distortion of label information due to mechanical aspects of the scanning mechanism may be corrected and feedback from decoding may be used to adapt various signal processing parameters, such as gain and threshold. Decoding of a digital representation of an input signal may be attempted at first with decoding of the part or all of analog signal being undertaken only after a number of attempts at the digital signal prove unsuccessful.

    ROLLING-RESET IMAGER WITH OPTICAL FILTER
    65.
    发明公开
    ROLLING-RESET IMAGER WITH OPTICAL FILTER 审中-公开
    与光学滤光片旋转复位图像传感器

    公开(公告)号：EP1847116A2

    公开(公告)日：2007-10-24

    申请号：EP06719838.2

    申请日：2006-01-27

    申请人： Datalogic Scanning, Inc.

    发明人： OLMSTEAD, Bryan L. ,  SHEARIN, Alan

    IPC分类号： H04N5/225

    CPC分类号： H04N5/2353 ,  H04N5/2354 ,  H04N5/238

    摘要： An imaging system (100,200) comprises a rolling-reset imager (110) that forms an electronic image of an object (160), a light source (130) illuminating the object (160) with pulsed light, and a bandpass optical filter (170) disposed between the object (160) and the rolling-reset imager (110). The pulsed light has an illumination frequency spectrum and an illumination pulse width defining an effective exposure time for forming the image of the object. The bandpass optical filter (170) has a frequency pass band permitting transmission of a significant portion of the illumination frequency spectrum while at least approximately inhibiting transmission of at least some light having frequencies outside the illumination frequency band.

    TRIGGERING ILLUMINATION FOR A DATA READER
    66.
    发明公开
    TRIGGERING ILLUMINATION FOR A DATA READER 有权
    跳闸的光线进行数据读取器

    公开(公告)号：EP1828958A2

    公开(公告)日：2007-09-05

    申请号：EP05853014.8

    申请日：2005-12-01

    申请人： Datalogic Scanning, Inc.

    发明人： ACOSTA, Jorge L. ,  SALAM, Mohammed A.

    IPC分类号： G06K7/10

    CPC分类号： G06K7/10732 ,  G06K7/10861 ,  G06K7/10881 ,  G06K7/12 ,  G06K2207/1011 ,  G06K2207/1012

    摘要： Methods are disclosed for triggering a source of visible light in connection with a data reader in response to a sensed proximity of an item. In one configuration, a data reader includes an imaging reader, such as a CMOS imager, that is sensitive to both infrared illumination and visible light. The imaging reader may be operable to read a symbol, such as a barcode or other optical code, via reflected infrared illumination, reflected visible light, or both. When characteristics of reflected illumination received by the imaging reader indicate the presence or movement of an item in the visible scan zone, the visible light source may be triggered to illuminate the item and thereby facilitate reading of the symbol using the same imaging reader as is used to sense the presence of the item. The visible light source may also be triggered to provide visual feedback.

    SYSTEM AND METHOD OF OPTICAL READING EMPLOYING VIRTUAL SCAN LINES
    67.
    发明公开
    SYSTEM AND METHOD OF OPTICAL READING EMPLOYING VIRTUAL SCAN LINES 有权
    系统和方法的光学读取使用虚拟扫描

    公开(公告)号：EP1825417A2

    公开(公告)日：2007-08-29

    申请号：EP05814014.6

    申请日：2005-10-18

    申请人： Datalogic Scanning, Inc.

    发明人： RUDEEN, Robert W. ,  OLMSTEAD, Bryan L.

    IPC分类号： G06K7/10

    CPC分类号： G06K7/14 ,  G06K7/10722 ,  G06K2207/1011

    摘要： Optical reading system and methods are disclosed having multiple modes of operation, for example: omnidirectional and single-code picking; fixed and handheld reading; 1D and 2D code reading. In one configuration, an image-based system (2) obtains input data via an area sensor (12) such as a two dimensional CCD array with only a select portion of the data corresponding to a selected pattern of virtual scan lines (252-262) being stored and processed. The system may permit a user to implement different operating modes such as a first mode of reading optical codes in any location or orientation and a second mode of reading only an optical code oriented along a particular virtual scan line or group of lines, for example lines intersecting an aiming pattern (36, 236, 336) or a band (455) of parallel virtual scan lines. In another configuration, the data reader has multiple operating modes such as operable to switch between operating in a handheld mode selecting a first pattern of virtual scan lines to process and/or decode and a fixed mode selecting a second pattern of virtual scan lines to process and/or decode. Virtual scan patterns in either mode can change from frame to frame in a predetermined sequence, or in response to decodable data, to improve scanning performance.