Bar code reader and game set using the same
First Claim
1. A bar code reader for reading bar code data from a card-shaped bar code record medium on which a bar code is formed by alternately arranging first bars having a relatively bright color and second bars having a relatively dark color which represents a front identification symbol and a rear identification symbol and coded data arranged between the front identification symbol and the rear identification symbol, said coded data depending on the width of each of the bars, comprising:
- an optical system having a light emitting portion and a light receiving portion for optically detecting a change in the color of each of the bars as said bar code record medium moves in relation to the optical system;
an aperture for regulating the relative positional relationship between said bar code and said optical system so that the longitudinal direction of each of the bars in said bar code is approximately perpendicular to the direction of movement of said bar code record medium;
a counter for generating count value data for each detected bar corresponding to the width of each bar;
temporary storing means for temporarily storing the count value data for each bar;
judging means for judging if noise is included in the bar code data read from said bar code record medium depending on whether the total number of bars for which count value data are stored coincides with a predetermined number of bars; and
decoding means for decoding the bar code data read from said bar code record medium on the basis of each of said count value data stored in said temporary storing means in response to a judgment by said judging means that no noise is included in said bar code data.
1 Assignment
0 Petitions
Accused Products
Abstract
Bar code data read from a bar code card (4) by a bar code reader (1) is inputted to a data processor (3). In this data processor (3), noise included in the bar code data is extracted or detected. The noise is detected by dividing the noise into noise which exists outside of a start guard bar and an end guard bar in a bar code and noise which exists between the start guard bar and the end guard bar. After the noise is detected, the data processor (3) decodes the bar code by ignoring the noise or decodes the bar code after removing the noise to correct the width of each of bars. A game set (5) also performs the same processing as that of the data processor (3) with respect to bar code data inputted from a bar code reader (10). In addition, the game set (5) uses the inputted bar code data for processing for a game.
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Citations
26 Claims
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1. A bar code reader for reading bar code data from a card-shaped bar code record medium on which a bar code is formed by alternately arranging first bars having a relatively bright color and second bars having a relatively dark color which represents a front identification symbol and a rear identification symbol and coded data arranged between the front identification symbol and the rear identification symbol, said coded data depending on the width of each of the bars, comprising:
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an optical system having a light emitting portion and a light receiving portion for optically detecting a change in the color of each of the bars as said bar code record medium moves in relation to the optical system; an aperture for regulating the relative positional relationship between said bar code and said optical system so that the longitudinal direction of each of the bars in said bar code is approximately perpendicular to the direction of movement of said bar code record medium; a counter for generating count value data for each detected bar corresponding to the width of each bar; temporary storing means for temporarily storing the count value data for each bar; judging means for judging if noise is included in the bar code data read from said bar code record medium depending on whether the total number of bars for which count value data are stored coincides with a predetermined number of bars; and decoding means for decoding the bar code data read from said bar code record medium on the basis of each of said count value data stored in said temporary storing means in response to a judgment by said judging means that no noise is included in said bar code data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 26)
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11. A bar code reader connectable to an image display device for reading bar code data from a card-shaped bar code record medium on which a bar code formed by alternately arranging first bars having a relatively bright color and second bars having a relatively dark color which represents a front identification symbol and the rear identification symbol and coded data arranged between the front identification symbol and the rear identification symbol, said coded data depending on the width of each of the bars, comprising:
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an optical system having a light emitting portion and a light receiving portion for optically detecting a change in the color of each of the bars as said bar code record medium moves in relation to the optical system; an aperture for regulating the relative positional relationship between said bar code and said optical system so that the longitudinal direction of each of the bars in said bar code is approximately perpendicular to the direction of movement of said bar code record medium; a counter for generating count value data for each detected bar corresponding to the width of each bar; temporary storing means for temporarily storing the count value data for each bar; judging means for judging if noise is included in the bar code data read from said bar code record medium depending on whether the total number of bars for which count value data are stored coincides with a predetermined number of bars; and decoding means for decoding the bar code data read from said bar code record medium on the basis of each of said count value data stored in said temporary storing means in response to a judgment by said judging means that no noise is included in said bar code data; and bar code image signal generating means for generating an image signal of a bar code pattern of the bar code data decoded by said decoding means and applying the same to said image displaying device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A game set connectable to an image display device for reading bar code data from a card-shaped bar code record medium on which a bar code formed by alternately arranging first bars having a relatively bright color and second bars having a relatively dark color which represents a front identification symbol and a rear identification symbol and coded data arranged between said front identification symbol and said rear identification symbol, said coded data depending on the width of each of the bars and being used as input data for a game, comprising:
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an optical system having a light emitting portion and a light receiving portion for optically detecting a change in the color of each of the bars as said bar code record medium moves in relation to the optical system; an aperture for regulating the relative positional relationship between said bar code and said optical system so that the longitudinal direction of each of the bars in said bar code is approximately perpendicular to the direction of movement of said bar code record medium; a counter for generating count value data for each detected bar corresponding to the width of each bar; temporary storing means for temporarily storing the count value data for each bar; judging means for judging if noise is included in the bar code data read from said bar code record medium depending on whether the total number of bars for which count value data are stored coincides with a predetermined number of bars; decoding means for decoding the bar code data read from said bar code record medium on the basis of each of said count value data stored in said temporary storing means in response to a judgment by said judging means that no noise is included in said bar code data; bar code image signal generating means for generating an image signal of a bar code pattern of the bar code data decoded by said decoding means and applying the same to said image displaying device; and game image signal generating means, utilizing the bar code data decoded by said decoding means as input data, for generating an image signal for the progress of the game on the basis of the input data and applying the image signal to said image displaying device. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification