Pattern matching system
First Claim
1. A pattern matching system for positioning with respect to each other a plurality of pattern-holding members having identical patterns thereon in such a manner that the patterns on the pattern-holding members are matched with each other, said pattern matching system comprising:
- color quality detecting means for optically detecting a color of the pattern on each of the pattern-holding members to generate information indicative of hue of the color of the pattern;
pattern mismatch calculating means for calculating a mismatch amount between the patterns on the pattern-holding members, based on the information indicative of hue of the color of the pattern of each of the pattern-holding members; and
feeding means for feeding the pattern-holding members relative to each other, based on the calculated mismatch amount, to thereby position the pattern-holding members with the patterns being matched.
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Accused Products
Abstract
A sewing machine has a pattern matching system for matching patterns on two fabric pieces to be sewn to each other, based on detected hues of the patterns. Any mismatch between the patterns is calculated on the basis of color quality information converted from detected intensities of light which is reflected by the fabric pieces. The fabric pieces are fed relatively to each other so that the patterns thereon are matched, based on the calculated mismatch.
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Citations
27 Claims
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1. A pattern matching system for positioning with respect to each other a plurality of pattern-holding members having identical patterns thereon in such a manner that the patterns on the pattern-holding members are matched with each other, said pattern matching system comprising:
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color quality detecting means for optically detecting a color of the pattern on each of the pattern-holding members to generate information indicative of hue of the color of the pattern; pattern mismatch calculating means for calculating a mismatch amount between the patterns on the pattern-holding members, based on the information indicative of hue of the color of the pattern of each of the pattern-holding members; and feeding means for feeding the pattern-holding members relative to each other, based on the calculated mismatch amount, to thereby position the pattern-holding members with the patterns being matched. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A pattern matching system for positioning with respect to one another a plurality of pattern-holding members having identical patterns thereon in such a manner that the patterns on the pattern-holding members are matched with one another, said pattern matching system comprising:
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color quality detecting means for receiving light from the patterns on the pattern-holding members to thereby obtain information indicative of qualities of colors of the patterns; pattern mismatch calculating means for calculating a mismatch amount between the patterns on the pattern-holding members, based on the information indicative of the qualities of colors of the patterns; and feeding means for feeding the pattern-holding members relative to each other, based on the calculated mismatch amount, to thereby position the pattern-holding members with the patterns being matched; wherein said color quality information detecting means includes;
light intensity detecting means for detecting intensities of the light of different hues from the patterns on the pattern-holding members; andmeans for converting the detected intensities of light of different hues into the information indicative of qualities of colors of the patterns; wherein said light intensity detecting means includes;
means for emitting light to the patterns on the pattern-holding members;
a set of color filters for separating the light reflected from the patterns into light of colors of different hues; andmeans for detecting intensities of the separated light of different hue colors; and wherein said converting means calculates color quality data determining lightness, saturation and hue of the colors of the patterns on the pattern-holding members, based on the detected intensities of the light of the different hues.
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24. A pattern matching system for positioning with respect to one another a plurality of pattern-holding members having identical patterns thereon in such a manner that the patterns on the pattern-holding members are matched with one another, said pattern matching system comprising:
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color quality detecting means for receiving light from the patterns on the pattern-holding members to thereby obtain information indicative of qualities of colors of the patterns; pattern mismatch calculating means for calculating a mismatch amount between the patterns on the pattern-holding members, based on the information indicative of the qualities of colors of the patterns; and feeding means for feeding the pattern-holding members relative to each other, based on the calculated mismatch amount, to thereby position the pattern-holding members with the patterns being matched; wherein said color quality information detecting means includes;
light intensity detecting means for detecting intensities of the light of different hues from the patterns on the pattern-holding members; andmeans for converting the detected intensities of light of different hues into the information indicative of qualities of colors of the patterns; wherein said light intensity detecting means includes;
means for emitting white light to the patterns on the pattern-holding members;
a set of color filters for separating the light reflected from the patterns into light of three primary colors; and
means for detecting intensities of the separated light of three primary colors; andwherein said converting means calculates color quality data determining lightness, saturation and hue of the colors of the patterns on the pattern-holding members, based on the detected intensities of the light of the three primary colors. - View Dependent Claims (25, 26, 27)
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Specification