116.
    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

    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.

    118.
    发明专利
    未知

    公开(公告)号:DE69131499T2

    公开(公告)日:2000-02-24

    申请号:DE69131499

    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.

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