Data Recording Medium and Game Device
A data recording medium for use in a game device comprises a first printed layer in which a first code pattern, which is detected by a first code pattern detecting unit of the game device, is printed and a second printed layer in which a second code pattern, which is detected by a second code pattern detecting unit of the game device, is printed. The second printed layer is overlaid on the first printed layer. Data based on a combination of the first and second code patterns is recorded in the first and second printed layers so that the data is recognizable to the game device as data intrinsic to the data recording medium. The game device detects the first and second code patterns by the first and second code pattern detecting units to make progress of a game according to the data.
The present invention relates to data recording media and game devices for performing a card game or the like.
BACKGROUND ARTIn a card game, a card with a figure, such as a game character, printed thereon is used, and card information indicating the kind or strength of the card concerned is printed as a code pattern to a part of the card. The card is inserted in a card slot of a card game device, or the card is placed on a play field wherein a card pattern detecting unit for reading the card pattern is provided. The code pattern is read from the card, and the card game is performed according to the card information read from the card. For example, see Japanese Laid-Open Patent Application No. 2002-301264.
In another card game device, a plurality of cards are inserted in the card game device in a state where they are made into a card bundle. In this card game device, reading of a code pattern from the card bundle is permitted without separating the plurality of cards. It is possible to prevent the cards from suffering from damages or dirt due to the conveyance of the cards, and it is possible to shorten the time for reading of the code pattern. For example, see Japanese Laid-Open Patent Application No. 2002-143367.
In a board game, a game piece in which information indicating the kind, strength, etc. of the game piece is recorded is placed on the game board which is used as the play field, and the board game is performed according to the information recorded on the game piece. For example, see Japanese Published Utility Model Application No. 63-024941.
In the card of the card game or the game piece of the board game mentioned above, a large number of cards or game pieces are used in playing the game, in view of the user-friendliness at the time of game playing and the ease of collection, conveyance, etc., it is desirable that the size of the cards or game pieces be made into an appropriate size which is not so large. Especially when a code pattern is printed in a narrow area, such as a card side face or a game piece surface, the amount of data that can be recorded therein is limited. It is desirable that the amount of recordable data be increased.
Some of the cards used in card game devices are purchased on the basis of a package, and other cards are paid out by coin insertion at the time of start of playing the game. There are also rare cards whose amount of purchase is very small. Such rare cards serve as a special role different from that of the usual cards, and players have the greatest concern in acquiring the rare cards. And forgery of the rare cards is often conducted.
One of the methods for preventing forgery of such cards is to use an electronic device, such as an IC tag, provided in each of such cards and acquire the card information from the IC tag. However, the cost of the cards with the IC tags becomes too high, and it is much higher than the cost of the normal paper-based cards. Thus, such method is not realistic.
The above-mentioned problems are not restricted to the cards for card game devices. The problems also arise in the items (for example, game pieces) accompanied by other printed matter and such printed matter on which the game data is printed can be the counterfeit target.
DISCLOSURE OF THE INVENTIONAccording to one aspect of the invention, there is provided an improved game device in which the above-mentioned problems are eliminated.
According to one aspect of the invention, there is provided any of a data recording medium and a game device which are adapted to increase the amount of recordable data, without increasing the cost steeply, and prevent forgery of the data recording medium effectively.
In an embodiment of the invention which solves or reduces one or more of the above-mentioned problems, there is provided a data recording medium for use in a game device, the data recording medium comprising: a first printed layer in which a first code pattern, which is detected by a first code pattern detecting unit of the game device, is printed; and a second printed layer in which a second code pattern, which is detected by a second code pattern detecting unit of the game device, is printed; wherein the first and second printed layers are formed so that the second printed layer is overlaid on the first printed layer, wherein data based on a combination of the first and second code patterns is recorded in the first and second printed layers so that the data is recognizable to the game device as data intrinsic to the data recording medium, and the game device detects the first and second code patterns by the first and second code pattern detecting units to make progress of a game according to the data.
The above-mentioned data recording medium may be configured so that the first code pattern and the second code pattern are printed so that each content of the first code pattern and the second code pattern is respectively detectable to a code pattern reading unit using a corresponding one of light beams having different wavelengths.
The above-mentioned data recording medium may be configured so that the data intrinsic to the data recording medium is an ID information identifying the data recording medium which is used for the game device to make progress of the game.
The above-mentioned data recording medium may be configured so that the data recording medium is a card, and the first and second code patterns are printed on a side face part of the card so that the second code pattern is overlaid on the first code pattern.
The above-mentioned data recording medium may be configured so that the data recording medium is a card, and the first and second code patterns are printed on a side face part of the card so that the second code pattern is overlaid on the first code pattern, wherein the data recording medium further comprises a third printed layer which is printed with an visible ink and overlaid on the first and second code patterns.
The above-mentioned data recording medium may be configured so that the data recording medium is a game piece which is used for performing the game, and the game device is provided with a play field in which the game piece is placed, wherein the first and second code patterns are printed and overlaid on a surface of the game piece which faces the play field.
The above-mentioned data recording medium may be configured so that the first printed layer and the second printed layer which are printed and overlaid are made into a group of printed layers, and a plurality of said groups of printed layers are provided at a plurality of locations of the data recording medium.
The above-mentioned data recording medium may be configured so that the data recording medium further comprises one or more third printed layers in which a code pattern is printed so that the one or more third printed layers are overlaid on the first printed layer and the second printed layer, and code pattern detecting methods for the one or more third printed layers are different from each other.
The above-mentioned data recording medium may be configured so that one of the first and second code patterns is generated based on conversion processing of the other code pattern.
In an embodiment of the invention which solves or reduces one or more of the above-mentioned problems, there is provided a game device comprising: a first code pattern detecting unit detecting a first code pattern from among a plurality of code patterns recorded in a detection area of a data recording medium; a second code pattern detecting unit detecting a second code pattern containing information different from information contained in the first code pattern among the plurality of code patterns recorded in the data recording medium, a printed layer in which the second code pattern is printed being overlaid on a printed layer in which the first code pattern is printed in the detection area of the data recording medium; a memory unit in which a combination of the first and second code patterns is stored as being data intrinsic to the data recording medium, and game data corresponding to the combination of the first and second code patterns is stored; and a control unit adapted to detect a combination of the first and second code patterns based on detection signals from the first and second code pattern detecting units, adapted to compare the detected combination of the first and second code patterns with the code pattern combination stored in the memory unit, adapted to read, when a match occurs, game data corresponding to the detected combination from the memory unit, and adapted to execute a game program based on the read game data to makes progress of the game.
The above-mentioned game device may be configured so that the first code pattern is printed with an ultraviolet-light emission ink on a detection surface of the data recording medium and the second code pattern is printed with an infrared-light absorption ink by overlaying the second code pattern on the first code pattern, wherein the first code pattern detecting unit is provided to emit ultraviolet light to the detection surface of the data recording medium, and the second code pattern detecting unit is provided to emit infrared light to the detection surface, so that an image of the detection surface of the data recording medium is captured to detect a corresponding one of the first and second code patterns respectively.
According to the data recording medium and game device in the embodiment of the invention, it is possible to increase the amount of recordable data, without increasing the cost steeply, and it is possible to prevent forgery of the data recording medium effectively.
- 10 card
- 10P card bundle
- 10a side face part
- 11 first layer
- 12 second layer
- 15 third layer
- 20 game piece
- 21 mounting
- 22 figure
- 23 code pattern
- 24 first layer
- 25 second layer
- 100 game device
- 101 CPU
- 102 program memory
- 103 data memory
- 104 interface
- 105 code-pattern reading unit
- 106 ultraviolet-light detecting unit
- 107 infrared-light detecting unit
- 108 visible-light detecting unit
- 109 input device
- 110 display circuit part
- 111 monitor
- 112 sound circuit part
- 113 speaker
- 114 communication interface
- 121 reading light irradiating unit
- 122 camera
- 131 play field
- 132 glass plate
- 133 reading light irradiating unit
- 134 reflection plate
- 135 reflection plate
- 136 camera
- 141 reading light irradiating unit
- 142 visible light LED
- 143 ultraviolet light LED
- 144 infrared light LED
- 145 camera
- 146 image processing device
- 147 memory
- 148 output device
- 200 game device
- 300 network
- 400 server
A description will now be given of an embodiment of the invention with reference to the accompanying drawings.
The first and second code patterns may be formed so that they are printed and overlaid fully throughout the length of the side face part. Alternatively, the first and second code patterns may be formed so that they are partially printed and overlaid, if needed in consideration of the length of the code pattern and the size and area of the recording part.
The sequence of the first layer 11 and the second layer 12 may be reversed, and the number of layers in the side face part may be increased further. Even in such cases, it is necessary that the printing be performed using the inks having different characteristics, in order to make the detecting methods for the respective layers different from each other. The amount of recordable data and the number of the kinds of data usable for an ID or the like can be increased by increasing the number of layers, and it is possible to prevent forgery of the data recording medium more effectively.
Alternatively, the card may be formed such that the first layer 11 and the second layer 12 with the code patterns formed therein which are overlaid in the same position are made into a group of printed layers, and a plurality of groups of such printed layers may be formed at various locations of the card 10 (the long side or the short side of the side face part, the card surface, etc.). By such alternative embodiment, it is possible to further increase the amount of recordable data, and the kind of data which can be used for an ID etc.
In the above embodiment, a combination of the ultraviolet-light emission ink and the infrared-light absorption ink are used as painting materials. Alternatively, a combination of other painting materials may also be used. The types of painting materials may be divided into infrared light type, ultraviolet light type, etc. according to the light wavelength, and the reactions of painting materials to light may be divided into absorption, reflection, and luminescence. Furthermore, among the luminescence painting materials, there are one the luminescent color of which is fixed regardless of the wavelength of emission light, and one the luminescent color of which differs according to the wavelength of emission light. The use of any combination of such painting materials is conceivable.
For example, in addition to the ultraviolet-light emission ink and the infrared-light absorption ink mentioned above, a light reflection ink which reflects in response to only the light of a specific wavelength, a luminescent ink which emits light only in response to not only ultraviolet light but also the light of a specific wavelength, a luminescent ink which emits light in a different color according to the wavelength in response to the light of a specific wavelength, a light absorption ink which absorbs not only infrared light but the light of a specific wavelength, etc. can be used.
On the other hand, there are the case in which the panting materials of different kinds as in the above embodiment are used as a combination of the painting materials printed and overlaid to the respective layers, and the case in which the panting materials of the same kind which react in response to a different wavelength of the light are used. Among the cases of using the panting materials of the same kind, there may be the case of using infrared-light absorption inks which absorb infrared light of a different wavelength respectively, and the case of using light absorption inks which are different from infrared-light absorption inks but absorb light of a different wavelength respectively. In addition, other recording methods (by magnetism, etc.) which do not use printing of the panting materials reactive to light but use a different detecting method can also be used.
Accordingly, printing code patterns the contents of which are different from each other on the same portion of a card without interference and applying either infrared light or ultraviolet light makes it possible to detect the content of each code pattern.
Thus, the card is provided so that the first layer 11 in which the first code pattern is printed and the second layer 12 in which the second code pattern is printed are overlaid in the same location. This makes it possible to increase the amount of recordable data even when the printing area of the card is narrow.
Since the codes the contents of which are different from each other are overlaid in a narrow area using two or more printing materials, it is difficult to acquire such printing materials and it is difficult to reproduce a card which is correctly the same as the genuine card in handwriting. It is possible to prevent forgery of the card effectively.
In the case of a card for use in a game device, the first code pattern and the second code pattern are combined together, the combination is recognized as data (for example, ID information) intrinsic to the card, and progress of the game is made in accordance with the data intrinsic to the card.
In the above embodiment of
As shown, an infrared-light absorption ink IR1 which has an absorption peak at wavelength λ1, and an infrared-light absorption ink IR2 which has an absorption peak at wavelength λ2 are used. The infrared-light absorption ink IR1 can be applied to the first layer 11 of
Alternatively, instead of the infrared-light absorption inks each having one absorption peak as shown in
Thus, by using the infrared-light absorption inks having different absorption wavelengths which are the painting materials of the same kind, the difficulty to identify the specific absorption wavelength of the ink is further added to the difficulty in acquiring the infrared-light absorption inks. It is possible to prevent forgery of the card more effectively.
As shown, the card 10 in this embodiment is provided so that the first layer 11 in which the first code pattern is printed and the second layer 12 in which the second code pattern is printed are overlaid on the surface of the card 10, not on the side face part of the card 10. In this case, the first and second code patterns may be formed so that they are printed and overlaid fully throughout the length of the card. Alternatively, the first and second code patterns may be formed so that they are partially printed and overlaid, if needed in consideration of the length of the code pattern and the size and area of the recording part. The code pattern is not limited to the illustrated one and two-dimensional code patterns and other code patterns may be also usable. The number of layers in which code patterns are printed may be increased, and printing may be performed using the inks having different characteristics in order to make the detecting methods for the respective layers different from each other.
Moreover, it is possible that the first and second layers which are printed and overlaid in the same position be made into a group of printed layers, and a plurality of groups 16-19 of printed layers be formed at respective locations of the card 10 (e.g., the respective locations of the card surface, the long side or the short side of the side face part, etc.), as shown in
Moreover, a third layer 15 may be printed in the visible ink on the first layer 11 and the second layer 12 of the card 10 of
Moreover, it is possible to have a significant code pattern included in the third layer 15 and to perform recognition of a combination of the first through third code patterns by the card game device. This makes it possible to increase the amount of recordable data per unit area further, and it is possible to prevent forgery of the card still more effectively.
As shown in
The game apparatus 100 is provided with the following: a CPU 101 which controls the whole device; a program memory 102 in which a program is stored; a data memory 103 in which data is stored; an interface 104 which connects the game device 100 with the peripheral device; a code pattern reading unit 105 and an input device 109 which are connected by the interface 104; a display circuit part 110 which displays an image on a monitor 111; a sound circuit part 112 which outputs a voice to a speaker 113, and a communication interface 114 which enables the game device 100 to communicate with the server 400 via the network 300.
In order to read a plurality of code patterns from the card 10 (
When the infrared-light absorption inks having different absorption wavelengths and using the painting materials of the same kind shown in
During operation, the game device 100 reads a plurality of code patterns from the card 10 or the game piece 20 using the code pattern reading unit 105 under the control of the CPU 101. The game device 100 acquires the intrinsic data from the card 10 or the game piece 20 based on the combination of the plurality of code patterns read.
On the other hand, the game data intrinsic to all the cards 10 or the game pieces 20 used in performing the game are stored beforehand in the data memory 103. The stored game data corresponding to the read intrinsic data is read from the data memory 103 by retrieving the data memory 103 with the read intrinsic data. The game program is executed based on the read game data so that progress of the game is gone on.
When the infrared-light absorption inks of the painting materials of the same kind but having different absorption wavelengths as shown in
After the card of the read object is inserted in the game device, the processing starts (step S101). The ultraviolet light LED 143 of the reading light irradiating unit 141 is turned on (step S102). The image is captured by the camera 145 (step S103). The ultraviolet light LED 143 is turned off (step S104). And the image processing device 146 determines whether the code pattern obtained from the captured image matches the standard format (step S105). When the code pattern (the captured image by the ultraviolet light) does not match the standard format, it is regarded as a counterfeit card (step S114). And the processing is ended (step S116).
On the other hand, when the captured image by the ultraviolet light matches the standard format, the visible light LED 142 of the reading light irradiating unit 141 is turned on (step S106). The image is captured by the camera 145 (step S107). The visible light LED 142 is turned off (step S108). And the image processing device 146 determines whether the code pattern obtained from the captured image matches the standard format (step S109). When the code pattern (the captured image by the visible light) does not match the standard format, it is regarded as a counterfeit card (step S114). And the processing is ended (step S116).
On the other hand, when the captured image by the visible light matches the standard format, the infrared light LED 144 of the reading light irradiating unit 141 is turned on (step S110). The image is captured by the camera 145 (step S111). The infrared light LED 144 is turned off (step S112). And the image processing device 146 determines whether the code pattern obtained from the captured image matches the standard format (step S113). When the code pattern (the captured image by the infrared light) does not match the standard format, it is regarded as a counterfeit card (step S114). And the processing is ended (step S116).
On the other hand, when the captured image by the infrared light matches the standard format, it is regarded as a genuine card (step S115). And the processing is ended (step S116).
According to the above processing, it is possible to distinguish between a genuine card and a counterfeit card correctly. In the processing of
When the infrared-light absorption inks of the painting materials of the same kind but having different absorption wavelengths as shown in
There are two cases for first and second code patterns: a case in which each of the first code pattern data and the second code pattern data represents a numeric value equivalent to a sequence of bits corresponding to a one-dimensional code (bar code) or a two-dimensional code, and a case in which each of the first code pattern data and the second code pattern data represents a formula of a straight line or a curve corresponding to a two-dimensional graphic figure.
In the case of the code pattern given to the side face part 10a of the card 10 as shown in
As shown in
When the second code pattern data is a numeric value, the numeric value of the second code pattern data can be acquired by applying a suitable function to the numeric value or the coefficient of the formula of the first code pattern data. When the second code pattern data is a formula, computation is performed for the numeric value or the coefficient of the formula of the first code pattern data, and the result of the computation is substituting for the coefficient of a formula which represents a straight line or a curve. And a unique straight line/curve formula of one or a plurality of lines is derived, so that the second code pattern data can be obtained.
As shown in
In the embodiment of
The above-mentioned comparison of the comparison unit 34 is performed in the form of code pattern data. This comparison may be performed in the form of a recognition image. For example, the recognition in such a case may be performed based on whether a recognition image of the second code pattern read from the card has the features according to the estimate value obtained by the conversion unit 33.
In the embodiment of
The present invention is not limited to the above-described embodiments, and variations and modifications may be made without departing from the scope of the present invention.
Claims
1. A data recording medium for use in a game device, comprising:
- a first printed layer in which a first code pattern, which is detected by a first code pattern detecting unit of the game device, is printed; and
- a second printed layer in which a second code pattern, which is detected by a second code pattern detecting unit of the game device, is printed;
- wherein the first and second printed layers are formed so that the second printed layer is overlaid on the first printed layer,
- wherein data based on a combination of the first and second code patterns is recorded in the first and second printed layers so that the data is recognizable to the game device as data intrinsic to the data recording medium, and the game device detects the first and second code patterns by the first and second code pattern detecting units to make progress of a game according to the data.
2. The data recording medium according to claim 1, wherein the first code pattern and the second code pattern are printed so that each content of the first code pattern and the second code pattern is respectively detectable to a code pattern reading unit using a corresponding one of light beams having different wavelengths.
3. The data recording medium according to claim 1, wherein the data intrinsic to the data recording medium is an ID information identifying the data recording medium which is used for the game device to make progress of the game.
4. The data recording medium according to claim 1, wherein the data recording medium is a card, and the first and second code patterns are printed on a side face part of the card so that the second code pattern is overlaid on the first code pattern.
5. The data recording medium according to claim 1, wherein the data recording medium is a card, and the first and second code patterns are printed on a side face part of the card so that the second code pattern is overlaid on the first code pattern,
- wherein the data recording medium further comprises a third printed layer which is printed with an visible ink and overlaid on the first and second code patterns.
6. The data recording medium according to claim 1, wherein the data recording medium is a game piece which is used for performing the game, and the game device is provided with a play field in which the game piece is placed,
- wherein the first and second code patterns are printed and overlaid on a surface of the game piece which faces the play field.
7. The data recording medium according to claim 1, wherein the first printed layer and the second printed layer which are printed and overlaid are made into a group of printed layers, and a plurality of said groups of printed layers are provided at a plurality of locations of the data recording medium.
8. The data recording medium according to claim 1, further comprising one or more third printed layers in which a code pattern is printed so that the one or more third printed layers are overlaid on the first printed layer and the second printed layer, and code pattern detecting methods for the one or more third printed layers are different from each other.
9. The data recording medium according to claim 1, wherein one of the first and second code patterns is generated based on conversion processing of the other code pattern.
10. A game device comprising:
- a first code pattern detecting unit detecting a first code pattern from among a plurality of code patterns recorded in a detection area of a data recording medium;
- a second code pattern detecting unit detecting a second code pattern containing information different from information contained in the first code pattern among the plurality of code patterns recorded in the data recording medium, a printed layer in which the second code pattern is printed being overlaid on a printed layer in which the first code pattern is printed in the detection area of the data recording medium;
- a memory unit in which a combination of the first and second code patterns is stored as being data intrinsic to the data recording medium, and game data corresponding to the combination of the first and second code patterns is stored; and
- a control unit adapted to detect a combination of the first and second code patterns based on detection signals from the first and second code pattern detecting units, adapted to compare the detected combination of the first and second code patterns with the code pattern combination stored in the memory unit, adapted to read, when a match occurs, game data corresponding to the detected combination from the memory unit, and adapted to execute a game program based on the read game data to makes progress of the game.
11. The game device according to claim 10, wherein the first code pattern is printed with an ultraviolet-light emission ink on a detection surface of the data recording medium and the second code pattern is printed with an infrared-light absorption ink by overlaying the second code pattern on the first code pattern,
- wherein the first code pattern detecting unit is provided to emit ultraviolet light to the detection surface of the data recording medium, and the second code pattern detecting unit is provided to emit infrared light to the detection surface, so that an image of the detection surface of the data recording medium is captured to detect a corresponding one of the first and second code patterns respectively.
Type: Application
Filed: May 24, 2005
Publication Date: Apr 10, 2008
Inventors: Kazuyoshi Kasai (Tokyo), Yousuke Tsukamoto (Tokyo), Toshiyuki Kaji (Tokyo), Takao Yamauchi (Tokyo)
Application Number: 11/597,857
International Classification: A63F 9/24 (20060101);