105.
    发明专利
    未知

    公开(公告)号:DE69133165T2

    公开(公告)日:2003-09-11

    申请号:DE69133165

    申请日:1991-03-11

    Inventor: SWARTZ JEROME

    Abstract: A point of sale counter (220) has plural food products each uniquely associated with a bar-code symbol to identify the product when optically scanned. The counter also includes a cash register (112) with an antenna (208) and a combination scale/printer (160), while an operator uses a scanner (10). When weighing a product, the scanner is aimed at the product bar-code so that the scale/printer prints the correct price label. An independent claim is included for a method of assisting customers in a retail establishment.

    106.
    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

    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.

    107.
    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

    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.

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