Compact scanning module for reading bar codes
First Claim
1. In an optical scanning module, for reading indicia with portions of differing light reflectivity, having a light emitter assembly for emitting a light beam towards the indicia, and a detector for receiving light reflected back from said indicia and producing an electrical signal corresponding to the differing light reflectivity of the indicia, an optical scan module component comprising:
- a first circuit board carrying a first circuit;
a second circuit board carrying a second circuit and disposed non-parallel to said first circuit board; and
an electrical cable connecting said first and second circuit boards to each other, wherein said first and second circuits operate together to produce signals to drive the emitter assembly and to process the electrical signal produced by the detector;
wherein said first and second circuit boards each form at least a portion of a peripheral side of the scanning module component and define a wall of a chamber having said light emitter assembly disposed therein.
1 Assignment
0 Petitions
Accused Products
Abstract
In an optical scanning module, for reading indicia with portions of differing light reflectivity, having a light emitter assembly for emitting a light beam towards the indicia, and a detector for receiving light reflected back from the indicia and producing an electrical signal corresponding to the differing light reflectivity of the indicia, an optical scan module component is provided which includes two circuits on respective circuit boards which are angularly mounted, and preferably orthogonally mounted, to each other. An electrical cable connects the circuits to each other so as to operate together to produce signals to drive the emitter assembly and to process the electrical signal produced by the detector.
72 Citations
49 Claims
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1. In an optical scanning module, for reading indicia with portions of differing light reflectivity, having a light emitter assembly for emitting a light beam towards the indicia, and a detector for receiving light reflected back from said indicia and producing an electrical signal corresponding to the differing light reflectivity of the indicia, an optical scan module component comprising:
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a first circuit board carrying a first circuit; a second circuit board carrying a second circuit and disposed non-parallel to said first circuit board; and an electrical cable connecting said first and second circuit boards to each other, wherein said first and second circuits operate together to produce signals to drive the emitter assembly and to process the electrical signal produced by the detector; wherein said first and second circuit boards each form at least a portion of a peripheral side of the scanning module component and define a wall of a chamber having said light emitter assembly disposed therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. In an optical scanning module, for reading indicia with portions of differing light reflectivity, having a light emitter assembly for emitting a light beam towards the indicia, and a detector for receiving light reflected back from said indicia and producing an electrical signal corresponding to the differing light reflectivity of the indicia, an optical scan module component comprising:
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a first circuit board carrying a first circuit; a second circuit board carrying a second circuit and disposed non-parallel to said first circuit board; and an electrical cable connecting said first and second circuit boards to each other, wherein said first and second circuits operate together to produce signals to drive the emitter assembly and to process the electrical signal produced by the detector; wherein said second circuit board is mounted to said first circuit board and the detector includes a linear array of photodiodes supported orthogonal to both the first circuit board and the second circuit board. - View Dependent Claims (10, 11)
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12. In an optical scanning module, for reading indicia with portions of differing light reflectivity, having a light emitter assembly for emitting a light beam towards the indicia, and a detector for receiving light reflected back from said indicia and producing an electrical signal corresponding to the differing light reflectivity of the indicia, an optical scan module component comprising:
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a first circuit board carrying a first circuit; a second circuit board carrying a second circuit and disposed non-parallel to said first circuit board; and an electrical cable connecting said first and second circuit boards to each other, wherein said first and second circuits operate together to produce signals to drive the emitter assembly and to process the electrical signal produced by the detector; wherein said light emitter assembly includes an optical device for directing said light beam, and the second circuit includes an application specific integrated circuit for (i) producing the signals to drive the optical device for producing a reciprocal motion of the optical device and (ii) processing the electrical signals produced by the detector. - View Dependent Claims (13)
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14. In an optical scanning module, for reading indicia with portions of differing light reflectivity, having a light emitter assembly for emitting a light beam towards the indicia, and a detector for receiving light reflected back from said indicia and producing an electrical signal corresponding to the differing light reflectivity of the indicia, an optical scan module component comprising:
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a first circuit board carrying a first circuit; a second circuit board carrying a second circuit and disposed non-parallel to said first circuit board; and an electrical cable connecting said first and second circuit boards to each other, wherein said first and second circuits operate together to produce signals to drive the emitter assembly and to process the electrical signal produced by the detector; a base; wherein; said light emitter assembly includes a light emitter for generating said light beam and an optical device for directing said light beam, the first circuit board is mounted to one end of the base, and orthogonal thereto, the second circuit board is mounted orthogonal to the first circuit board and parallel to the base, and the first and second circuits act together to produce signals to drive the light emitter and said optical device. - View Dependent Claims (15, 16)
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17. An optical scanning module, housing a light emitter for emitting a light beam and a detector for receiving light reflected back from indicia with portions of differing light reflectivity and producing an electrical signal corresponding to the differing light reflectivity of the indicia, comprising:
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a first circuit board carrying a first circuit forming at least a portion of a first side of said module; a second circuit board carrying a second circuit forming a second side of said module; a base forming at least a portion of a third side of said module; and an electrical cable connecting said first and second circuits to each other; wherein said optical scanning module is in the shape of a rectangular parallelpiped. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. An optical scanning module, housing a light emitter for emitting a light beam and a detector for receiving light reflected back from indicia with portions of differing light reflectivity and producing an electrical signal corresponding to the differing light reflectivity of the indicia, comprising:
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a metal base forming a first side of said module and supporting said detector such that said detector forms a portion of a second side of said module substantially orthogonal to said first side of said module; a first circuit board carrying a first circuit forming a third side of said module substantially parallel to said first side of said module and substantially orthogonal to said second side of said module; a second circuit board carrying a second circuit forming a fourth side of said module substantially orthogonal to said first, second and third sides of said module; an electrical cable connecting said first and second circuits to each other; wherein said optical scanning module is in the shape of a rectangular parallelpiped. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. An optical scanning module, housing a light emitter for emitting a light beam and a detector for receiving light reflected back from indicia with portions of differing light reflectivity and producing an electrical signal corresponding to the differing light reflectivity of the indicia, comprising:
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a metal base forming a first side of said module; a metal frame integrally formed on an interior surface of said metal base and to which said detector is mounted such that said detector forms a portion of a second side of said module; a first circuit board mounted to said metal frame such that said first circuit board forms a portion of a third side of said module; and a second circuit board mounted to said metal frame such that said circuit board forms a portion of a fourth side of said module; wherein said optical scanning module is in the shape of a rectangular parallelpiped. - View Dependent Claims (45, 46, 47, 48, 49)
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Specification