Apparatus and method for acquiring and reading optical codes with result indication
First Claim
Patent Images
1. An apparatus for acquiring and reading optical codes, comprising:
- means for acquiring the optical code, having at least one acquisition light source, and means for generating an acquisition light pattern at the optical code, means for reading the acquired optical code, and means for visually indicating the reading result comprising;
at least one indication light source, distinct from or coinciding with, the at least one acquisition light source of said acquisition means, means for imposing an information content indicating the reading result to the light emitted by said at least one indication light source, and means for projecting the light, having the imposed information content, substantially at the optical code, wherein the visual indication means are arranged so that the light at the optical code forms at least one luminous figure having the imposed information content and being different from the acquisition light pattern at least in one of shape and size.
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Abstract
In an apparatus and a method for acquiring and reading optical codes, the indication of the reading result is carried out projecting a luminous figure onto the optical code, that is to say in the position on which the attention of the operator is focused. The luminous figure can have an information content also more complex than the simple indication of the end of the reading.
83 Citations
73 Claims
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1. An apparatus for acquiring and reading optical codes, comprising:
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means for acquiring the optical code, having at least one acquisition light source, and means for generating an acquisition light pattern at the optical code, means for reading the acquired optical code, and means for visually indicating the reading result comprising;
at least one indication light source, distinct from or coinciding with, the at least one acquisition light source of said acquisition means, means for imposing an information content indicating the reading result to the light emitted by said at least one indication light source, and means for projecting the light, having the imposed information content, substantially at the optical code, wherein the visual indication means are arranged so that the light at the optical code forms at least one luminous figure having the imposed information content and being different from the acquisition light pattern at least in one of shape and size. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. Method for acquiring and reading optical codes comprising the steps of:
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(a) acquiring and reading an optical code, wherein said acquiring comprises illuminating the optical code with an acquisition light pattern and (b) visually indicating the result of said reading step (a) by generating at least one luminous figure substantially at the optical code, wherein said at least one luminous figure differs from the acquisition light pattern at least in one of shape and size. - View Dependent Claims (23, 24, 25)
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26. Method for acquiring and reading optical codes comprising the steps of:
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(a) acquiring and reading an optical code through an optical code acquiring and reading apparatus, (b) visually indicating the result of said reading step (a) by generating at least one luminous information substantially at the optical code, and (c) discriminating between at lest three results of said reading step (a), wherein said indication step (b) is carried out by generating a predetermined luminous information associated to the particular result discriminated in step (c). - View Dependent Claims (27, 28)
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29. An apparatus for acquiring and reading an optical code, said apparatus comprising:
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an optical code reader, having an illuminator of said optical code and a reader of said illuminated optical code, wherein said illuminator generates at the optical code an acquisition light pattern; and
an indicator of optical code reading status, said indicator including a projector of visible illumination on an area associated with said optical code in response to a result of a reading of said optical code by said optical code reader, wherein said projector projects light forming on said area at least one luminous figure which differs from said acquisition light pattern in at least one of shape and size. - View Dependent Claims (30, 31, 32, 33, 34)
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35. A method of acquiring and reading an optical code, said method comprising the steps of:
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(a) acquiring and reading an optical code with an optical code reading apparatus, wherein said acquiring comprises illuminating the optical code with an acquisition light pattern; and
(b) providing, at said optical code, a visible indication of a result of said acquiring and reading step, said visible indication being at least one luminous figure different from said acquisition light pattern in at least one of shape and size. - View Dependent Claims (36, 37, 38, 39, 40)
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41. An apparatus for acquiring and reading optical codes, comprising:
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means for acquiring the optical code through illumination of the code with an acquisition light pattern, detection of the light diffused by the code, and its transformation into an electric signal, having at least one acquisition light source, means for reading the acquired optical code through processing of the electric signal and its interpretation or decoding, and means for visually indicating the reading result, characterised in that said visual indication means comprises;
at least one indication light source, distinct from or coinciding with, the at least one acquisition light source of said acquisition means, means for imposing an information content to the light emitted by said at least one indication light source, said information content indicating the result of the reading performed by said means for reading, and means for projecting the light, having the imposed information content, substantially at the optical code, wherein the visual indication means are arranged so that the light at the optical code forms at least one luminous figure different from the acquisition light pattern at least in one of shape and size.
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42. Method for acquiring and reading optical codes comprising the steps of:
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(a) acquiring an optical code through an optical code acquiring and reading apparatus, wherein said acquiring comprises illuminating the optical code with an acquisition light pattern and generating an electric signal representative of said optical code, (b) reading the acquired optical code through said optical code acquiring and reading apparatus wherein said reading comprises processing said electric signal and interpreting or decoding it, and (c) visually indicating the result of said reading step (b), characterized in that said indication step (c) is carried out by generating at least a luminous figure substantially at the optical code different from the acquisition light pattern in at least one of shape and size.
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43. An apparatus for acquiring and reading optical codes, comprising:
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means for acquiring the optical code, having at least one acquisition light source, an illumination optics and a receiving optics, means for reading the acquired optical code, and means for visually indicating the reading result, said visual indication means comprising;
at least one indication light source distinct from the at least one acquisition light source. means for imposing an information content indicating the reading result on the light emitted by said at least one indication light source, and means for projecting the light emitted by said at least one indication light source substantially at the optical code, whereby the light at the optical code forms at least one figure having the imposed information content, wherein all optical elements of said means for visually indicating the reading result are distinct from the illumination optics. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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55. An apparatus for acquiring and reading optical codes, comprising:
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means for acquiring the optical code, through illumination of the code with an acquisition light pattern, having at least one acquisition light source, means for reading the acquired optical code, and means for visually indicating the reading result, characterized in that said visual indication means comprises;
at least one indication light source, distinct from or coinciding with, the at least one acquisition light source, means for imposing an information content indicating the reading result on the light emitted by said at least one indication light source, and means for projecting the light emitted by said at least one indication light source substantially at the optical code, whereby the light at the optical code forms at least one luminous figure having the imposed information content, characterized in that said means for reading the acquired optical code comprises means for discriminating between at least two different reading results and in that said means for visually indicating the reading result are arranged so that said at least one luminous figure is distinguishable from the acquisition light pattern for each result discriminated by said means for discriminating. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66)
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67. Method for acquiring and reading optical codes, comprising the steps of:
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(a) acquiring an optical code, by illuminating the optical code with an acquisition light pattern, (b) reading the acquired optical code, and (c) visually indicating the result of said reading step (b) by generating at least one luminous figure substantially at the optical code, characterized by the step (d) of discriminating between at least two different results of said reading step () and in that in said indication step (c) said at least one luminous figure is distinguishable form the acquisition light pattern for each result discriminated in said step (d). - View Dependent Claims (68, 69, 70, 71, 72, 73)
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Specification