WO2009069964A2

WO2009069964A2 - Product having object code pattern on a surface thereof and method for generating object code pattern

Info

Publication number: WO2009069964A2
Application number: PCT/KR2008/007040
Authority: WO
Inventors: Seunggol Lee; Sanghoon Kim; Jaehyun Park
Original assignee: Pen Laboratory Inc.
Priority date: 2007-11-30
Filing date: 2008-11-28
Publication date: 2009-06-04
Also published as: WO2009069964A3; KR100904171B1; KR20090056623A

Abstract

Disclosed are products with a superficial object recognition code pattern and a method for generating the object recognition code pattern. In a product having one or more surfaces, the product comprises on its surface object cells each carrying marked codes of data expressed by binary or higher numbers; and a superficial object recognition code pattern formed of a predetermined number or more of the object cells in an assembly, wherein a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a singular direction.

Description

PRODUCT HAVING OBJECT CODE PATTERN ON A SURFACE THEREOF AND METHOD FOR GENERATING

OBJECT CODE PATTERN

Technical Field

[1] The present invention relates to products with a superficial object recognition code pattern and a method for generating the object recognition code pattern. More particularly, the present invention relates to the products with a superficial object recognition code pattern and a method for generating the pattern having object cells each of which is repeatedly presented by simple symbols within specific regions of the products in either a horizontal or vertical direction while it is comprised of a same kind of codes arranged, horizontally arranged with same codes, vertically arranged with same codes or diagonally arranged with same codes in order to provide an improved positioning precision on the products. Background Art

[2] To date, various methods of determining positions of an object such as a writing instrument across a surface with or without recorded data have been tried out, and with respect to positioning of an electronic pen in particular for inputting handwritten articles, symbols, drawings or such graphic data two-dimensional or three-dimensional positioning devices have been introduced to the market. These devices determine the absolute positions of position sensing means across a surface with or without recorded data through transforming positional information from the position sensing means into coordinates.

[3] To input the above described handwritten data, an input tablet and a sensing means may be used and most two-dimensional positioning devices are operated by contacts between the input tablet and sensing means.

[4] Generally, there exist two different relationships between the input tablet and sensing means operated as passive sensing means/active tablet and active sensing means/ passive tablet.

[5] In the passive sensing means/active tablet method, the active tablet is typically a complex device that is bulky and heavy with a high price tag. In addition, such active tablets are difficult to manufacture but easily malfunction failing to recognize a correct position due to the inherent complexity of their electromechanical structures.

[6] In an effort to solve the problem, it was conceived to determine the absolute position of the sensing means easily by a device, which is provided with a data input surface having a coding pattern to dertermine X-Y coordinates, a sensor for sensing the coding pattern and a processor for determining the current position of the sensor based on the sensed coding pattern. The device may be operated to visualize on a computer screen the handwritings of characters or drawings on the data input surface by a user.

[7] There may be different ways to perform the coding with the use of the said device as exemplified below.

[8] One way is to execute a position-coding through patterning codes, which are comprised of three concentric circles wherein the outermost circle represents x- coordinate and the innermost circle represents y-coordinate. Between the outermost circle and a middle circle are sixteen divided sections for indicating different codes by solid or void sections of the encircled area which means the respective coordinate pairs are encoded by complex codes with particular appearances.

[9] Another way is to visualize the X and Y coordinates with an encodable checker pattern wherein a position-coding is similarly performed as with the concentric circles.

[10] These known patterns comprise complex symbols which are difficult to implement into a pattern on the data input surface as they are sized smaller and more concentrated and the sensing means with a lower resolution can not correctly recognize the fine pattern to induce errors in positional recognition, or if one tried to enlarge or simplify the symbols of the pattern, a same kind of micro codes in the same pattern may be duplicated at different positions of a data input surface reducing the precision at which the absolute position is determined thereby the position sensing means may fail to perform correctly.

Disclosure of Invention

Technical Problem

[11] In view of the above-mentioned problems, present disclosure provides products with a superficial object recognition code pattern and a method for generating the pattern having object cells each of which carries data codes by simple symbols and is repeatedly presented within specific regions of the products in either a horizontal or vertical direction while it is comprised of a same kind of codes aribitrarily arranged, horizontally arranged, vertically arranged or diagonally arranged in order to provide an improved positioning precision on the products. Technical Solution

[12] In order to solve the problems, an embodiment of the present disclosure provides a product having one or more surfaces and a superficial object recognition code pattern and comprising object cells on the surface, each of the object cells carrying marked codes of data expressed by binary or higher numbers. The object recognition code pattern is formed of a predetermined number or more of the object cells in an assembly where a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern, and the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a singular direction.

[13] Another embodiment of the present disclosure provides a product having one or more surfaces and a superficial object recognition code pattern comprising object cells on the surface, each of the object cells carrying marked codes of data expressed by binary or higher numbers. The object recognition code pattern is formed of a predetermined number or more of the object cells in an assembly where a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern and the object cells included in the object recognition code pattern are marked by the same kind of codes repeated.

[14] Yet another embodiment of the present disclosure provides a product having one or more surfaces and a superficial object recognition code pattern comprising object cells on the surface, each of the object cells carrying marked codes of data expressed by binary or higher numbers. The object recognition code pattern is formed of a predetermined number or more of the object cells in an assembly where a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern and the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a horizontal direction.

[15] Yet another embodiment of the present disclosure provides a product having one or more surfaces and a superficial object recognition code pattern comprising object cells on the surface, each of the object cells carrying marked codes of data expressed by binary or higher numbers. The object recognition code pattern is formed of a predetermined number or more of the object cells in an assembly where a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern and the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a vertical direction.

[16] Yet another embodiment of the present disclosure provides a product having one or more surfaces and a superficial object recognition code pattern comprising object cells on the surface, each of the object cells carrying marked codes of data expressed by binary or higher numbers. The object recognition code pattern is formed of a predetermined number or more of the object cells in an assembly where a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern and the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a diagonal direction.

[17] Yet another embodiment of the present disclosure provides a method of generating an object recognition code pattern comprising marking codes of data expressed by binary or higher numbers on object cells; and generating the object recognition code pattern by assemblying one or more of the object cells, wherein a combination of data that corresponds to the object cells in the object recognition code pattern sets an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a singular direction.

[18] Yet another embodiment of the present disclosure provides a method of generating an object recognition code pattern comprising marking codes of data expressed by binary or higher numbers on object cells; and generating the object recognition code pattern by assemblying one or more of the object cells, wherein a combination of data that corresponds to the object cells in the object recognition code pattern sets an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are marked with a repeat of the same kind of codes.

[19] Yet another embodiment of the present disclosure provides a method of generating an object recognition code pattern comprising marking codes of data expressed by binary or higher numbers on object cells; and generating the object recognition code pattern by assemblying one or more of the object cells, wherein a combination of data that corresponds to the object cells in the object recognition code pattern sets an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a horizontal direction.

[20] Yet another embodiment of the present disclosure provides a method of generating an object recognition code pattern comprising marking codes of data expressed by binary or higher numbers on object cells; and generating the object recognition code p attern by assembling one or more of the object cells, wherein a combination of data that corresponds to the object cells in the object recognition code pattern sets an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a vertical direction. [21] Yet another embodiment of the present disclosure provides a method of generating an object recognition code pattern comprising marking codes of data expressed by binary or higher numbers on object cells; and generating the object recognition code pattern by assembling one or more of the object cells, wherein a combination of data that corresponds to the object cells in the object recognition code pattern sets an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a vertical direction.

Advantageous Effects

[22] As described above, according to the present disclosure, products may be provided with object cells each of which carries data codes by simple codes and is repeatedly marked within specific regions of the products in either a horizontal or vertical direction while it is comprised of a same kind of codes arranged, horizontally equal arrangement of codes, vertically equal arrangement of codes or diagonally equal arrangement of codes effectuating an improved positioning precision on the products.

[23] According to the present disclosure, a calculating work will be lessened compared to the conventional technologies to specify a position while extending the marked area to recognize. Brief Description of Drawings

[24] FIG. 1 is a block diagram of a system using a product with a superficial object recognition code pattern according to an embodiment of the present disclosure,

[25] FIG. 2 illustrates an embodiment of a product having a superficial pattern indicative of the absolute positions,

[26] FIGS. 3 to 6 illustrate an example method of assigning X-coordinates of a pattern indicative of the absolute positions according to an embodiment of the present disclosure,

[27] FIGS. 7 to 10 illustrate an example method of assigning Y-coordinates of a pattern indicative of the absolute positions according to an embodiment of the present disclosure,

[28] FIG. 11 illustrates another embodiment of the product having a superficial pattern indicative of the absolute positions from the coordinates of FIGS. 5 and 9 combined. [29] FIG. 12 illustrates a configuration of a nondirectional direction flag,

[30] FIG. 13 illustrates numbers of cases of distributions of the direction flag as appeared on a coordinator window, [31] FIG. 14 illustrates an example encoding of binary data marked on a first cell according to an embodiment of the present disclosure, [32] FIG. 15 illustrates X, Y-coordinates values corresponding to values that the respective line segments mean, [33] FIG. 16 illustrates an example code of binary data marked on a second cell according to an embodiment of the present disclosure, [34] FIG. 17 illustrates another example code of binary data marked on a second cell according to an embodiment of the present disclosure, [35] FIG. 18 illustrates yet another example code of binary data marked on a second cell according to an embodiment of the present disclosure, [36] FIG. 19 illustrates an embodiment of a product having an absolute coordinate pattern area and an object recognition code pattern area, [37] FIGS. 20a and 20b illustrate a method for generating an object recognition code pattern according to an embodiment of the present disclosure, [38] FIGS. 21a to 21d illustrate methods for generating an object recognition code pattern according to first to fourth embodiments of the present disclosure, respectively, and [39] FIGS. 22 and 23 illustrate the object recognition code pattern according to an embodiment of the present disclosure.

Mode for the Invention [40] Hereinafter, preferred embodiments of the present disclosure will be described with reference to the accompanying drawings. It is to be noted that the same elements are indicated with the same reference numerals throughout the drawings. In the following description, a detailed description of known configurations or functions incorporated herein will be omitted when it may make the subject matter of the disclosure rather unclear. [41] FIG. 1 is a block diagram of a system using a product with a superficial object recognition code pattern according to an embodiment of the present disclosure. [42] The system of an embodiment of the present disclosure has a product 110, electronic pen 120 and user terminal 130. [43] In this embodiment, product 110 may be a paper sheet carrying a number of unit cell patterns 210 which are printed with data codes expressed by binary or higher numbers.

Here, unit cell patterns 210 printed on product 110 will be described in detail referring to FIGS. 2 to 18. [44] Also, product 110 may comprise multiple pages each having a print of data codes expressed by binary or higher numbers within unit cell patterns 210.

[45] Electronic pen 102 according to the preferred embodiment of the present disclosure may be a recognition means/device which recognizes the data codes expressed by binary or higher numbers within unit cell patterns 210 printed on product 110 and performs a transmission of the data codes to user terminal 130.

[46] User terminal 130 may be a terminal receptive of various web page data via a wired and/or wireless communication network in response to user key operations and selected from a personal computer, personal digital assistant (PDA) and mobile communication terminal including a communication means 132, central processing unit 134, display means 136 and storage means 138.

[47] Communication means 132 of user terminal 130 cooperates with electronic pen 120 to transceive various data.

[48] Central processing unit 134 may perform general operations of user terminal 130 and display means 136 and display means 136 may receive various data from central processing unit 134 to display it in the form of characters, numbers and images. Also, display means 136 under control of central processing unit 134 may display messages generated from executing various programs stored in storage means 138 and messages from executing an electronic note program in accordance with an embodiment of the present disclosure.

[49] Storage means 138 is meant for storing an operating program for user terminal 130 and various application programs.

[50] FIG. 2 illustrates a product having a superficial pattern indicative of the absolute positions according to an embodiment of the present disclosure,

[51] As depicted, the absolute position marking superficial pattern may be comprised of first cells 201 carrying marked codes of data expressed by binary numbers, second cells 202 which lack encoded binary data or its display in a distinctive way to first cells 201 and unit cell patterns 210 formed of a predetermined number or more of first and second cells 201, 202 assembled.

[52] As shown in FIG. 2, in the present disclosure, each of first cells 201 carries binary i nformation of X-coordinate and Y-coordinate together as (0,0), (0,1), (1,0) or (1,1).

[53] The present embodiment describes binary data as encoded and displayed on the respective first cells 201 and second cells 202 but binary data or higher number data of ternary, quaternary and such codes depending on the code types.

[54] As shown in FIG. 2, in the present embodiment, unit cell patterns 210 may be each comprised of NxM(4x4) sized assembly of first cells 201 and second cells 202 which represents an area or window that can be identified individually through a single reading of a pointer of electronic pen 102 used as a sensing means. There may be thirteen first cells 201 and three second cells 202 to constitute the 4x4 unit cell pattern 210. In this embodiment, unit cell pattern 210 is formed of equal N and M values although these component values may differ from each other.

[55] The combination of binary data corresponding to the thirteen first cells 201 represents the absolute coordinate value (or called window value) of the corresponding unit cell pattern. The three second cells 202 are at a specific position in unit cell pattern 210 i.e., its lower right corner and connect second cells 202 into a line segment in a specific configuration of reversed L or 'J ' . Thus, this type of three second cells 202 assembled with positional and configurational particularities is called a direction flag 203. The particular position of direction flag 203 is to differentiate one unit cell pattern 210 from the other adjacent unit cell patterns 210, and its particular configuration is to determine the orientation of product 110 to tell the degree of rotation thereof. More detailed descriptions in this regard will follow. In this embodiment, direction flag 203 is shaped into the inverted L, 'J 'although it may be modified into various effective shapes of a rotated L, '-| ' or an inverted T, ' J. 'to tell the degree of rotation of product 110.

[56] Next, an example of assigning X and Y-coordinates to the absolute position marking superficial pattern according to the present disclosure will be described with reference to FIGS. 3 to 10.

[57] <Method of assigning X-coordinate in absolute position marking pattern>

[58] FIG. 3 illustrates unit cell patterns 210 in a single row of the absolute position marking superficial pattern to describe the X-coordinate data component separately although each cell is intended in the present disclosure to contain both X and Y- coordinate data as shown in FIG. 2.

[59] As shown, the binary window values of unit cell patterns 210 are in increment by one towards X-direction (rightward) as 0000000000000 → 0000000000001 → 0000000000010 → 0000000000011. The binary window values are made from a combination of the thirteen first cells 201 in increasing sequence from 1 to 13 as shown in FIG. 4. If the binary window values are made in this way to increase by one in sequence, this regularity permits recovery of the actual window value even if a coordinate window does not coincide with the actual window. Here, the coordinate window denotes the NxM sized cell assembly, which is actually read by the coordinate sensing means of the pen pointer. But, in practice, it is to be noted that the image viewed by the coordinate sensing pen pointer may be larger than the coordinate window.

[60] Then, unit cell patterns 210 arranged in the single row of FIG. 3 are repeated in the

Y-direction (above and below) as shown in FIG. 5 to form multiple rows of patterns 210. [61] FIG. 6 is an alternative embodiment of FIG. 3 and shows that the window values may start with an arbitrary value besides zero. This is a known fact for pen 120 to read, and in order to determine the relative window value to the starting point the embodiment calculates the arbitrary value through obtaining the difference from a current reading of the window value. If the entire window values had reached the maximum possible values, the next window value may have zero assigned.

[62] <Method of assigning Y-coordinate in absolute position marking pattern>

[63] FIG. 7 illustrates unit cell patterns 210 in a single column of the absolute position marking pattern to describe the Y-coordinate data component separately although each cell is intended in the present disclosure to contain both X and Y-coordinate data as shown in FIG. 2.

[64] As shown, the binary window values of unit cell patterns 210 are in increment by one towards Y-direction (downward) as 0000000000000 → 0000000000001 → 0000000000010 → 0000000000011. The binary window values are made from a combination of the thirteen first cells 201 in increasing sequence from 1 to 13 as shown in FIG. 8. If the binary window values of unit cell patterns 210 are made in this way to increase by one in sequence towards Y-direction (downward), this regularity permits recovery of the actual window value even if a coordinate window does not coincide with the actual window.

[65] For reference, FIG. 4 depicts the sequence for reading each cell with the X-coor dinates assigned and FIG. 8 depicts the Y-coordinates assigned although the disclosure is not so limited that for example, the sequence of either FIG. 4 or FIG. 8 may be commonly applied to the X and Y-coordinates. Alternatively, the sequence of FIG. 4 may be applied to the Y-coordinate and the sequence of FIG. 8 may be applied to the X-coordinate. In addition, although not shown, the cells may be positioned so that the binary data increases its order of digit along a spiral track about a center.

[66] Then, unit cell patterns 210 arranged in the single column of FIG. 7 are repeated in the X-direction (horizontally) as shown in FIG. 9 to form multiple columns of patterns 210.

[67] FIG. 10 is an alternative embodiment of FIG. 7 showing that the window values do not have to start with zero but an arbitrary value will do.

[68] This is a known fact for pen 120 to read, and in order to determine the relative window value to the starting point the embodiment calculates the arbitrary value through obtaining the difference from a current reading of the window value. If the entire window values had reached the maximum possible values, the next window value may have zero assigned.

[69] As described above, the respective cells forming the absolute position marking pattern may have X-coordinate values of FIG. 5 and Y-coordinate values of FIG. 9 assigned thereto and then these X and Y-coordinate values are assembled with the cells at the same positions corresponding to each other to constitute the absolute position marking pattern as shown in FIG. 11.

[70] Comparing the absolute position marking pattern of FIG. 2 with the absolute position marking pattern of FIG. 11, the binary data values assigned to the corresponding cells are showing some differences, which depend on the method of assignment/assembly of the binary data corresponding to the second cells in unit cell pattern 210 as shown in FIGS. 4 and 8. I.e., the absolute position marking pattern of FIG. 2 illustrates an example of commonly applying the binary data assignment/assembly sequence of FIG. 8 to the X and Y-coordinates, and the absolute position marking pattern of FIG. 11 illustrates an example of applying the binary data assignment/assembly sequence of FIG. 4 to the X-coordinate and the binary data assignment/assembly sequence of FIG. 8 to the Y-coordinate. However, in any case, the absolute position marking patterns of FIGS. 2 and 11 maintain their corresponding unit cell patterns' absolute coordinate values as the same.

[71] Next, direction flag 203 of FIG. 2 will be explained in more detail.

[72] The arrangement of second cells 202 forming direction flag 203 must be made so that flag 203 itself retains a directive feature. For the purpose of the directive feature, a composition of three or more second cells is necessary. In a smaller number, the second cells could have two or more directive features regardless of their configuration. But a composition of two or more second cells would be suffice if direction flag 203 is to be used solely for an error correction. On the other hand, if direction flag 203 is to be used simply for discriminating between the adjacent unit cell patterns, a single second cell may form direction flag 203 successfully.

[73] In case direction flag 203 is used solely for the rotation sensing rather than the error correction, the second cells 202 have to be either free of information or retaining information indicated by second cells 202 differentially encoded from first cells 102 in order to indicate that the cells are in the composition of direction flag 203.

[74] If direction flag 203 is used solely for the rotation sensing, three second cells 202 free of information are suffice and it is preferable that a connecting line segment for the three cells is shaped into a reversed L or 'J ' .

[75] Several arrangements that lack the directive feature (or centerless and thus useless arrangement) are excluded since they comprise the three cells arranged in line as shown FIG. 12.

[76] If the direction flag in 'J 'shape were to be used, to figure out the rotated angle (90,

180 and 270 degrees) of the page with the print of absolute position marking pattern three different distribution cases of the second cells on a coordinate window are available as illustrated in FIGS. 13a, 13b and 13c. I.e., there are cases where all of the cells are joined on the coordinate window as in FIG. 13a, the cells are divided into two groups as in FIG. 13b and the cells are divided into three groups as in FIG. 13c.

[77] In any cases of FIGS. 13a, 13b and 13c, a center cell at c is identified and the other separate cells around the center cell c are recognized as positioned at the other sides of the center.

[78] Then, if the recovered direction flag were in' ^L'shape the page can be identified as rotated 90 degrees clockwise, in' p' shape as rotated 180 degrees and in'η 'shape as rotated 90 degrees counterclockwise. For example, the direction flag of FIG. 13a indicates no rotation, the direction flag of FIG. 13b upon recovery indicates a 90-degree rotation clockwise into' ^L' shape and the direction flag of FIG. 13c upon recovery indicates an 180-degree inversion into ' p' shape. Since the rotational angle of the product (paper) can be recognized using this rule the matrices of cells on the coordinate window may be rotated in check.

[79] Next is a description on an error correction of the absolute position marking pattern according to the present disclosure.

[80] To perform the error correction, the second cells of the above described direction flag to distinguish the windows may be identified by 2-bit binary data encoded in a different way than the first cells. These 2-bit values may become error correcting codes for the X and Y-coordinates, respectively. The error correcting code for the X- coordinate and the error correcting code for the Y-coordinate act independently from each other and so the following description will be about the X-coordinate with the description about Y-coordinate omitted for they are exchangeable.

[81] A 4x4 window includes 13 bits of X-coordinate but for the purpose of 2-bit error correction a redundancy must be at least 4 bits. An optimal algorithm of a block code is Reed-Solomon(RS) code, which takes the form of code (

2 - l -k

) i.e., reconstruct i "" - 1 bits of data into

2*- l bits of code words in order to correct errors down to 2 bits. Here, k is a code number for the error correction. When k=4

, 12 of 16 cells are used for data and 4 cells for the error correction code. To this end, the number of the second cells constituting the direction flag must be increased by one to make four. At this time, of the 12 cells only 11 cells are subjected to the error correction with the remaining one cell goes thru the error correction at an upper step.

[82] Besides the upper one bit the remaining bits may be corrected as follows.

[83] First, reconstruct the second cells so that four of them form the direction flag. Encode the second cells using a different type of representation from the first cell so that the respective second cells can retain 2-bit information. With four second cells the method of calculating the pattern position will be same as above except the number of the first cells in the window decreases by one. Then, using an RS code that is one of error correction codes perform a calculation (encoding) of the error correction code for the entire or partial information in the data cell and visualize it on the direction flag cells in an encoded form. If a window were missed and read incorrectly, the error correction code cannot function properly. But in the position is calculated in the regular calculation method followed by the RS encoding to correct the error. This is the RS decoding not for the RS encoded code word but an assumed code word resulting in possible incorrect recovery.

[84] A method for exclusively correcting the errors of lower bits is as follows.

[85] Compared to low-order digits of the binary data constituting the window, its high order digits change less frequently and thus if the error corrections are performed exclusively for the changeable low-order digits, it is possible to reduce the number of the second cells to form the direction flag. This allows more different unit cell patterns (window) to be implemented. Since the number of the cells to compose the direction flags is reduced according to the disclosure the probability of overlooking the three cells at once is lower than that of the four cells at once to increase the chance to have the successful error corrections.

[86] Although the RS coding has been exemplified in the error correction in the absolute position marking pattern, it is understood that the disclosure is not so limited.

[87] Binary data codes marked on the first and second cells will be described below.

[88] FIG. 14 illustrates the binary data code marked on the first cell according to the present disclosure wherein the binary data code may be marked by one of a first line segment centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and extending along the X axis as in FIG. 14a, a second line segment centered on the intersection of lines along the X and Y axes and extending along the Y axis as in FIG. 14b, a third line segment centered on the intersection of lines along the X and Y axes and extending across quadrants 1/3 as in FIG. 14c and a fourth line segment centered on the intersection of lines along the X and Y axes and extending across quadrants 2/4 as in FIG. 14d.

[89] FIG. 15 shows the X and Y-coordinate values corresponding to semantic values the respective line segments represent wherein the first line segment of FIG. 14a has a semantic value of zero with its corresponding X and Y-coordinate value being (1,1), the second line segment of FIG. 14b has a semantic value of 1 with its corresponding X and Y-coordinate value being (0,1), the third line segment of FIG. 14c has a semantic value of 2 with its corresponding X and Y-coordinate value being (1,0) and the fourth line segment of FIG. 14d has a semantic value of 3 with its corresponding X and Y-coordinate value being (0,0). Of course, the configuration in FIG. 15 is to give an example and the semantic values may be differently matched to the X and Y- coordinate values.

[90] FIG. 16 illustrates the binary data code marked on the second cell according to the present disclosure wherein the binary data code may be centered on an intersection of lines along imaginary X and Y axes that pass each cell at its center and marked by one of a first line segment extending in parallel to the X axis and across quadrants 1/2 as in FIG. 16a, a second line segment extending in parallel to the X axis and across quadrants 3/4 as in FIG. 16b, a third line segment extending in parallel to the Y axis and across quadrants 2/3 as in FIG. 16c and a fourth line segment extending in parallel to the Y axis and across quadrants 1/4 as in FIG. 16d.

[91] Referring to FIG. 15, the first line segment of FIG. 16a has a semantic value of zero with its corresponding X and Y-coordinate value being (1,1), the second line segment of FIG. 16b has a semantic value of 1 with its corresponding X and Y-coordinate value being (0,1), the third line segment of FIG. 16c has a semantic value of 2 with its corresponding X and Y-coordinate value being (1,0) and the fourth line segment of FIG. 16d has a semantic value of 3 with its corresponding X and Y-coordinate value being (0,0).

[92] Alternatively, the binary data codes marked on the second cells according to the present disclosure may be marked in the same way as the first to fourth line segments of the first cell in FIGS. 14a to 14d. but with differentiated lengths to distinguish themselves from the first cell line segments.

[93] Further, another example of the binary data codes marked on the second cells according to the present disclosure is illustrated in FIG. 17 wherein the binary data code may be extending from an intersection of lines along imaginary X and Y axes that pass each cell at its center and marked by one of a first line segment within quadrant 1 as in FIG. 17a, a second line segment within quadrant 2 as in FIG. 17b, a third line segment within quadrant 3 as in FIG. 17c and a fourth line segment within quadrant 4 as in FIG. 17d, and these line segments may indicate the X-coordinate and Y- coordinate values as one of (0,0), (0,1), (1,0) and (1,1).

[94] FIG. 18 illustrates yet another example of the binary data code marked on the second cell according to the present disclosure wherein the binary data code may be marked by one of a first line segment centered on an intersection of lines along imaginary X and Y axes that pass each cell at its center and extending along the positive X and Y axes as in FIG. 18a, a second line segment centered on the intersection of lines along the X and Y axes and extending along the negative X axis and the positive Y axis as in FIG. 18b, a third line segment centered on the intersection of lines along the X and Y axes and extending along the negative X and Y axes as in FIG. 18c and a fourth line segment centered on the intersection of lines along the X and Y axes and extending along the positive X axis and the negative Y axis as in FIG. 18d, and these line segments may indicate the X-coordinate and Y-coordinate values as one of (0,0), (0,1), (1,0) and (1,1).

[95] In the various types of line segments that have been described as a means for encoding the binary data marked on the first or second cells according to the present disclosure, the respective line segments may be expressed in an equal length but they may also be represented by multiple dots in equal straight lines. In this case, to prevent the dots in the subject cell from establishing a line segment with the adjacent dots in another cell, the maximum distance between two adjacent dots for a single line segment has to be always less than a distance between the subject cell dot and the adjacent cell dot.

[96] Also, the encoded and marked data on the respective cells according to the present disclosure has been described based on binary data only although binary data or higher number data of ternary, quaternary and such data codes may be used depending on the number of code types.

[97] FIG. 19 illustrates a product 110 having an absolute coordinate pattern area 1910 and an object recognition code pattern area 1920 according to an embodiment of the disclosure.

[98] If it is assumed that absolute coordinate pattern area 1910 is comprised of unit cell patterns 210 of NxM, unit cell patterns may be composed of a predetermined number or more of first cells 201 marked with encoded data and second cells 202 marked with data codes but in a differentiating way from first cells or no data.

[99] Absolute coordinate pattern area 1910 may have a print of the data code in unit cell pattern 210 and can be set so that the value from which the code of data was generated can be matched to a certain coordinate. I.e., for example, the X-coordinate values may be set to increase along the respective cells toward the right direction while the Y- coordinate values may be set to increase gradually from the bottom to top.

[100] I.e., if the user chose product 110 at absolute coordinate pattern area 1910 with electronic pen 120, due to product 110 having the absolute coordinate values for absolute coordinate pattern area 1910, user terminal 130 can extract the absolute coordinate values of absolute coordinate pattern area 1910.

[101] Product 110 with one or more surfaces as provided by the embodiment of the present disclosure shown in FIG. 19 may comprise on its surfaces object cells each carrying marked codes of data expressed by binary or higher numbers and an object recognition code pattern formed of a predetermined number or more of the object cells in an assembly.

[102] Object recognition code pattern area 1920 may be comprised of 2x2 object cells repeated in either a horizontal or vertical direction. Here, 2x2 object cells are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a singular direction.

[103] In addition, object recognition code pattern area 1920 may be read as a 3x3 window of either a first object recognition code pattern 2210 or a second object recognition code pattern 2220 wherein the respective object recognition code patterns include object code values, (see FIG. 22)

[104] Encoded data marked on the 2x2 object cell is centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and is represented by line segments having their respective angular arrangements with the X or Y axis used as a reference so that the corresponding data is valued individually depending on the angular arrangements of the respective line segments.

[105] And encoded data marked on the 2x2 object cell is centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and is represented by one of a line segment along the X axis, a line segment along the Y axis, a line segment across quadrants 1/3 and a line segment across quadrants 2/4.

[106] In addition, 2x2 object cell may have the codes of the same kind repeatedly arranged, horizontally equal arrangement of codes, vertically equal arrangement of codes or diagonally equal arrangment of codes.

[107] Comparing absolute coordinate pattern area 1910 to object recognition code pattern area 1920 shown in FIG. 19, unit cell pattern 210 included in absolute coordinate pattern area 1910 must be individually configured in relation to the electronic pen 120 selection positions while object recognition code pattern area 1920 may have object recognition code pattern configured with a common code regardless of the electronic pen 120 selection positions or formed in several types such as the codes of the same kind repeatedly arranged, horizontally repeated in arrangment, vertically repeated in arrangement or diagonally repeated in arrangment.

[108] Also, if object recognition code pattern area 1920 were assumed to be an object recognition code pattern formed of NxM, electronic pen 120 can be made to read object recognition code pattern area 1920 as the window of (N+l)x(M+l). [109] FIGS. 20a and 20b illustrates a method for generating object code recognition pattern according to an embodiment of the present disclosure. [110] As shown in FIG. 20a, the object code recognition pattern may have 2x2 object cells repeatedly arranged meeting a requisite subsection of Condition 1 below: [111] (Condition 1)

[112] ® A = B and C = D (here, A is equal to or different from C) [113] © A = C and B = D (here, A is different from B) [114] ® A = D and B = C (here, A is different from B) [115] Here, A, B, C and D are codes with numbers 0, 1, 2 and 3 assigned thereto and if A,

B, C and D were substituted by all the possible codes numbered 0, 1, 2 and 3, twenty two different patterns may be provided. [116] I.e., it is possible to provide repeats of 2x2 object cells in either horizontal or vertical direction within the premises of object recognition code pattern area 1920 as long as the object recognition code pattern of the object cells meets Condition 1. [117] For example, if certain repeats of 2x2 object cells were composed in object recognition code pattern area 1920 satisfying one of the subsections of Condition 1, then electronic pen 120 can read object recognition code pattern area 1920 as the window of (N+l)x(M+l), which is 3x3 sized. Here, if object recognition code pattern area 1920 with repeats of 2x2 object cells were read as 3x3 sized, up to two different types of patterns may be outputted. [118] Expanding the concept of FIG. 20a leads to the diagram of FIG. 20b whereby the object recognition code pattern may have repeated arrangements of 3x3 object cells meeting Condition 2 below: [119] (Condition 2)

[120] ® A = B = C and D = E = F and G = H = I [121] © A = D = G and B = E = H and C = F = I [122] ® A = E = I and B = F = G and C = D = H [123] ® A = F = H and B = D = I and C = E = G [124] © A = C = E = G = I and B = D = F = H [125] Here, A, B, C and D are codes with numbers 0, 1, 2 and 3 assigned thereto and if A,

B, C and D were substituted by all the possible codes numbered 0, 1, 2 and 3, total 136 different patterns may be provided. [126] I.e., it is possible to provide repeats of 3x3 object cells in either horizontal or vertical direction within the premises of object recognition code pattern area 1920 as long as the object recognition code pattern of the object cells meets Condition 2. [127] For example, if certain repeats of 3x3 object cells were composed in object recognition code pattern area 1920 satisfying one of the subsections of Condition 2, then electronic pen 120 can read object recognition code pattern area 1920 as the window of (N+l)x(M+l), which is 4x4 sized. Here, if object recognition code pattern area 1920 with repeats of 3x3 object cells were read as 4x4 sized, up to three different types of patterns may be outputted.

[128] FIG. 21a illustrates a method of generating object recognition code patterns according to a first embodiment of the present disclosure.

[129] To specify the descriptions with reference to FIG. 20a, FIG. 21a shows the object recognition code pattern having a 2x2 object cell repeat in either a horizontal or vertical direction.

[130] I.e., as shown in FIG. 21a, the 2x2 object cell may receive inputs of the data codes of the same type. Thus, product 110 may be provided comprising on the surface the object cell carrying marked codes of data expressed by binary or higher numbers and the object recognition code pattern formed of a predetermined number or more of the object cells in an assembly, wherein a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern, and wherein the 2x2 object cells included in the object recognition code pattern are provided with a single kind of codes which are arranged repeatedly.

[131] I.e., the 2x2 object cell of FIG. 21a is made in a patterning method that repeatedly uses particular one of data codes having their code semanic value corresponding to 0, 1, 2 and 3, thereby allowing four different data codes to be used in constructing four types of patterns depending on the data codes marked on the 2x2 object cells.

[132] FIG. 21b illustrates a method of generating object recognition code patterns according to a second embodiment of the present disclosure.

[133] To specify the descriptions with reference to FIG. 20a, FIG. 21b shows the object recognition code pattern having a 2x2 object cell may repeat in either a horizontal or vertical direction.

[134] I.e., as shown in FIG. 21b, the 2x2 object cell within the object recognition code pattern may have the data codes of the same type in the horizontal direction. Thus, product 110 may comprise on its surface the object cell carrying marked codes of data expressed by binary or higher numbers and the object recognition code pattern formed of a predetermined number or more of the object cells in an assembly, wherein a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a horizontal direction. [135] I.e., the 2x2 object cell within the object recognition code pattern is provided with horizontally same type of codes, which have the code semantic values of 0, 1, 2 and 3, thereby allowing four different data codes to be used with the 2x2 object cells in constructing six types of patterns depending on the combination of data codes assigned.

[136] FIG. 21c illustrates a method of generating object recognition code patterns according to a third embodiment of the present disclosure.

[137] To specify the descriptions with reference to FIG. 20a, FIG. 21c shows the object recognition code pattern having a 2x2 object cell may repeat in either a horizontal or vertical direction.

[138] I.e., as shown in FIG. 21c, the 2x2 object cell within the object recognition code pattern may have the data codes of the same type in the vertical direction. Thus, product 110 may comprise on its surface the object cell carrying marked codes of data expressed by binary or higher numbers and the object recognition code pattern formed of a predetermined number or more of the object cells in an assembly, wherein a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a vertical direction.

[139] I.e., the 2x2 object cell within the object recognition code pattern is provided with vertically same type of codes, which have the code semantic values of 0, 1, 2 and 3, thereby allowing four different data codes to be used with the 2x2 object cells in constructing six types of patterns depending on the combination of data codes assigned.

[140] FIG. 2 Id illustrates a method of generating object recognition code patterns according to a fourth embodiment of the present disclosure.

[141] To specify the descriptions with reference to FIG. 20a, FIG. 2 Id shows the object recognition code pattern having a 2x2 object cell may repeat in a diagonal direction.

[142] I.e., as shown in FIG. 21d, the 2x2 object cell within the object recognition code pattern may have the data codes of the same type in the diagonal direction. Thus, product 110 may comprise on its surface the object cell carrying marked codes of data expressed by binary or higher numbers and the object recognition code pattern formed of a predetermined number or more of the object cells in an assembly, wherein a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a diagonal direction.

[143] I.e., the 2x2 object cell within the object recognition code pattern is provided with diagonally same type of codes, which have the code semantic values of 0, 1, 2 and 3, thereby allowing four different data codes to be used with the 2x2 object cells in constructing six types of patterns depending on the combination of data codes assigned.

[144] FIGS. 22 and 23 illustrate the object recognition code pattern according to an embodiment of the present disclosure.

[145] As shown in FIG. 22, object recognition code pattern area 1920 of product 110 may comprise horizontally and/or vertically repeated 2x2 object cells, and electronic pen 120 may read object recognition code pattern area 1920 as a 3x3 window of first object recognition code pattern 2210 and second object recognition code pattern 2220.

[146] Here, the corresponding combination of data to the object cells in first object recognition code pattern 2210 represents the object code value of the corresponding object recognition code pattern.

[147] As shown in FIG. 23, the positions of the object cells within first object recognition code pattern 2210 and second object recognition code pattern 2220 represent the object code values.

[148] For example, a specified object code value may be calculated if first object recognition code pattern 2210 and second object recognition code pattern 2220 are differentiated by a to a with applying Math Figure 1 below:

[149] MathFigure 1 [Math.l]

Objext Code Va 1 ue=a₀ X 4 +a_x X 4 +a₂ X 4 +a₃X 4 +a₄ X 4 +a₅ X 4 +a₆ X 4 +a₇X 4 +a₈ X 4

[150] I.e., to calculate first object recognition code pattern 2210 by applying Math Figure 1 the result may be 191406 while second object recognition code pattern 2220 may be calculated into 245499.

[151] Now the user may sweep electronic pen 120 across object recognition code pattern area 1920, which has horizontally and/or vertically repeated 2x2 object cells. When electronic pen 120 recognizes first object recognition code pattern 2210 or second object recognition code pattern 2220, 191406 or 245499 may be correspondingly generated from first object recognition code pattern 2210 or second object recognition code pattern 2220.

[152] Although exemplary embodiments of the disclosure have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the essential characteristics of the invention. Therefore, the embodiments disclosed in the present invention have been described not for limiting the technical idea of the invention, but for describing the invention. Accordingly, the scope of the invention is not to be limited by the above embodiments but by the appended claims and the equivalents thereof.

Industrial Applicability

[153] As described above, the present disclosure may be used in writing surfaces for the electronic pen and its user terminal system requiring less calculating work to specify a position while extending the marked area to recognize.

[154]

[155]

[156]

[157] CROSS-REFERENCE TO RELATED APPLICATION

[158] This non-provisional application claims priorities under 35 U.S.C § 119(a) on Patent Application No. 10-2007-0123855 filed in Korea on November 30, 2007, the entire contents of which are hereby incorporated by reference. In addition, this non- provisional application claims priorities in countries, other than U.S., with the same reason based on the Korean Patent Application, the entire contents of which are hereby incorporated by reference.

[159]

[160]

Claims

[1] In a product having one or more surfaces, the product with a superficial object recognition code pattern comprising: object cells on the surface, each of the object cells carrying marked codes of data expressed by binary or higher numbers; and the object recognition code pattern formed of a predetermined number or more of the object cells in an assembly, wherein a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a singular direction.

[2] The product with a superficial object recognition code pattern in claim 1, wherein the object recognition code pattern is formed of the predetermined number of NxM cells where N and M are integers with N=M or N≠M.

[3] The product with a superficial object recognition code pattern in claim 1, wherein the positions of the object cells in the object recognition code pattern represent the object code value.

[4] The product with a superficial object recognition code pattern in claim 1, wherein the encoded data marked on the object cell is centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and is represented by line segments having their respective angular arrangements with the X or Y axis used as a reference so that the corresponding data is valued individually depending on the angular arrangements of the respective line segments.

[5] The product with a superficial object recognition code pattern in claim 1, wherein encoded data marked on the object cell is centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and is represented by one of a line segment along the X axis, a line segment along the Y axis, a line segment across quadrants 1/3 and a line segment across quadrants 2/4.

[6] The product with a superficial object recognition code pattern in claim 1, wherein the two kinds of codes are identical to each other.

[7] The product with a superficial object recognition code pattern in claim 1, wherein the codes of the same kind are repeatedly arranged in a horizontal direction.

[8] The product with a superficial object recognition code pattern in claim 1, wherein the codes of the same kind are repeatedly arranged in a vertical direction

[9] The product with a superficial object recognition code pattern in claim 1, wherein the codes of the same kind are repeatedly arranged in a diagonal direction.

[10] In a product having one or more surfaces, the product with a superficial object recognition code pattern comprising: object cells on the surface, each of the object cells carrying marked codes of data expressed by binary or higher numbers; and the object recognition code pattern formed of a predetermined number or more of the object cells in an assembly, wherein a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are indicated by the same kind of codes repeated.

[11] The product with a superficial object recognition code pattern in claim 10, wherein the object recognition code pattern is formed of the predetermined number of NxM cells where N and M are integers with N=M or N≠M.

[12] The product with a superficial object recognition code pattern in claim 10, wherein the positions of the object cells in the object recognition code pattern represent the object code value.

[13] The product with a superficial object recognition code pattern in claim 10, wherein the encoded data marked on the object cell is centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and is represented by line segments having their respective angular arrangements with the X or Y axis used as a reference so that the corresponding data is valued individually depending on the angular arrangements of the respective line segments.

[14] The product with a superficial object recognition code pattern in claim 10, wherein encoded data marked on the object cell is centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and is represented by one of a line segment along the X axis, a line segment along the Y axis, a line segment across quadrants 1/3 and a line segment across quadrants 2/4.

[15] In a product having one or more surfaces, the product with a superficial object recognition code pattern comprising: object cells on the surface, each of the object cells carrying marked codes of data expressed by binary or higher numbers; and the object recognition code pattern formed of a predetermined number or more of the object cells in an assembly, wherein a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a horizontal direction.

[16] The product with a superficial object recognition code pattern in claim 15, wherein the object recognition code pattern is formed of the predetermined number of NxM cells where N and M are integers with N=M or N≠M.

[17] The product with a superficial object recognition code pattern in claim 15, wherein the positions of the object cells in the object recognition code pattern represent the object code value.

[18] The product with a superficial object recognition code pattern in claim 1, wherein the encoded data marked on the object cell is centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and is represented by line segments having their respective angular arrangements with the X or Y axis used as a reference so that the corresponding data is valued individually depending on the angular arrangements of the respective line segments.

[19] The product with a superficial object recognition code pattern in claim 15, wherein encoded data marked on the object cell is centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and is represented by one of a line segment along the X axis, a line segment along the Y axis, a line segment across quadrants 1/3 and a line segment across quadrants 2/4.

[20] In a product having one or more surfaces, the product with a superficial object recognition code pattern comprising: object cells on the surface, each of the object cells carrying marked codes of data expressed by binary or higher numbers; and the object recognition code pattern formed of a predetermined number or more of the object cells in an assembly, wherein a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an al- ternation format and the code pairs have respectively equal values repeated in a vertical direction.

[21] The product with a superficial object recognition code pattern in claim 20, wherein the object recognition code pattern is formed of the predetermined number of NxM cells where N and M are integers with N=M or N≠M.

[22] The product with a superficial object recognition code pattern in claim 20, wherein the positions of the object cells in the object recognition code pattern represent the object code value.

[23] The product with a superficial object recognition code pattern in claim 20, wherein the encoded data marked on the object cell is centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and is represented by line segments having their respective angular arrangements with the X or Y axis used as a reference so that the corresponding data is valued individually depending on the angular arrangements of the respective line segments.

[24] The product with a superficial object recognition code pattern in claim 20, wherein encoded data marked on the object cell is centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and is represented by one of a line segment along the X axis, a line segment along the Y axis, a line segment across quadrants 1/3 and a line segment across quadrants 2/4.

[25] In a product having one or more surfaces, the product with a superficial object recognition code pattern comprising: object cells on the surface, each of the object cells carrying marked codes of data expressed by binary or higher numbers; and the object recognition code pattern formed of a predetermined number or more of the object cells in an assembly, wherein a combination of data that corresponds to the object cells in the object recognition code pattern represents an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a diagonal direction.

[26] The product with a superficial object recognition code pattern in claim 25, wherein the object recognition code pattern is formed of the predetermined number of NxM cells where N and M are integers with N=M or N≠M.

[27] The product with a superficial object recognition code pattern in claim 25, wherein the positions of the object cells in the object recognition code pattern represent the object code value.

[28] The product with a superficial object recognition code pattern in claim 25, wherein the encoded data marked on the object cell is centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and is represented by line segments having their respective angular arrangements with the X or Y axis used as a reference so that the corresponding data is valued individually depending on the angular arrangements of the respective line segments.

[29] The product with a superficial object recognition code pattern in claim 25, wherein encoded data marked on the object cell is centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center and is represented by one of a line segment along the X axis, a line segment along the Y axis, a line segment across quadrants 1/3 and a line segment across quadrants 2/4.

[30] A method of generating an object recognition code pattern comprising: marking codes of data expressed by binary or higher numbers on object cells; and generating the object recognition code pattern by assembling one or more of the object cells, wherein a combination of data that corresponds to the object cells in the object recognition code pattern sets an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a singular direction.

[31] The method of generating an object recognition code pattern in claim 30, wherein the object recognition code pattern is formed of the predetermined number of NxM cells where N and M are integers with N=M or N≠M.

[32] The method of generating an object recognition code pattern in claim 30, wherein the object recognition code pattern is formed so that the positions of the object cells in the object recognition code pattern represent the object code value.

[33] The method of generating an object recognition code pattern in claim 30 further comprising before marking data: centering the encoded data marked on the object cell on an intersection of lines along imaginary X and Y axes that pass the cell at its center; marking the encoded data on the object cell with line segments having their respective angular arrangements with the X or Y axis used as a reference: and setting a value of the corresponding data individually depending on the angular arrangements of the respective line segments.

[34] The method of generating an object recognition code pattern in claim 30 further comprising before marking data: centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center marking encoded data on the object cell with one of a line segment along the X axis, a line segment along the Y axis, a line segment across quadrants 1/3 and a line segment across quadrants 2/4.

[35] The method of generating an object recognition code pattern in claim 30, wherein the two kinds of codes arranged are identical to each other.

[36] The method of generating an object recognition code pattern in claim 30, wherein the same one of the two kinds of codes are repeatedly arranged in a horizontal direction.

[37] The method of generating an object recognition code pattern in claim 30, wherein the same one of the two kinds of codes are repeatedly arranged in a vertical direction.

[38] The method of generating an object recognition code pattern in claim 30, wherein the same one of the two kinds of codes are repeatedly arranged in a diagonal direction.

[39] A method of generating an object recognition code pattern comprising: marking codes of data expressed by binary or higher numbers on object cells; and generating the object recognition code pattern by assembling one or more of the object cells, wherein a combination of data that corresponds to the object cells in the object recognition code pattern sets an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are marked with a repeat of the same kind of codes.

[40] The method of generating an object recognition code pattern in claim 39, wherein the object recognition code pattern is formed of the predetermined number of NxM cells where N and M are integers with N=M or N≠M.

[41] The method of generating an object recognition code pattern in claim 39, wherein the object recognition code pattern is formed so that the positions of the object cells in the object recognition code pattern represent the object code value.

[42] The method of generating an object recognition code pattern in claim 39 further comprising before marking data: centering the encoded data marked on the object cell on an intersection of lines along imaginary X and Y axes that pass the cell at its center; marking the encoded data on the object cell with line segments having their respective angular arrangements with the X or Y axis used as a reference: and setting a value of the corresponding data individually depending on the angular arrangements of the respective line segments.

[43] The method of generating an object recognition code pattern in claim 39 further comprising before marking data: centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center marking encoded data on the object cell with one of a line segment along the X axis, a line segment along the Y axis, a line segment across quadrants 1/3 and a line segment across quadrants 2/4.

[44] A method of generating an object recognition code pattern comprising: marking codes of data expressed by binary or higher numbers on object cells; and generating the object recognition code pattern by assembling one or more of the object cells, wherein a combination of data that corresponds to the object cells in the object recognition code pattern sets an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a horizontal direction.

[45] The method of generating an object recognition code pattern in claim 44, wherein the object recognition code pattern is formed of the predetermined number of NxM cells where N and M are integers with N=M or N≠M.

[46] The method of generating an object recognition code pattern in claim 44, wherein the object recognition code pattern is formed so that the positions of the object cells in the object recognition code pattern represent the object code value.

[47] The method of generating an object recognition code pattern in claim 44 further comprising before marking data: centering the encoded data marked on the object cell on an intersection of lines along imaginary X and Y axes that pass the cell at its center; marking the encoded data on the object cell with line segments having their respective angular arrangements with the X or Y axis used as a reference: and setting a value of the corresponding data individually depending on the angular arrangements of the respective line segments.

[48] The method of generating an object recognition code pattern in claim 44 further comprising before marking data: centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center marking encoded data on the object cell with one of a line segment along the X axis, a line segment along the Y axis, a line segment across quadrants 1/3 and a line segment across quadrants 2/4.

[49] A method of generating an object recognition code pattern comprising: marking codes of data expressed by binary or higher numbers on object cells; and generating the object recognition code pattern by assembling one or more of the object cells, wherein a combination of data that corresponds to the object cells in the object recognition code pattern sets an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a vertical direction.

[50] The method of generating an object recognition code pattern in claim 49, wherein the object recognition code pattern is formed of the predetermined number of NxM cells where N and M are integers with N=M or N≠M.

[51] The method of generating an object recognition code pattern in claim 49, wherein the object recognition code pattern is formed so that the positions of the object cells in the object recognition code pattern represent the object code value.

[52] The method of generating an object recognition code pattern in claim 49 further comprising before marking data: centering the encoded data marked on the object cell on an intersection of lines along imaginary X and Y axes that pass the cell at its center; marking the encoded data on the object cell with line segments having their respective angular arrangements with the X or Y axis used as a reference: and setting a value of the corresponding data individually depending on the angular arrangements of the respective line segments.

[53] The method of generating an object recognition code pattern in claim 49 further comprising before marking data: centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center marking encoded data on the object cell with one of a line segment along the X axis, a line segment along the Y axis, a line segment across quadrants 1/3 and a line segment across quadrants 2/4.

[54] A method of generating an object recognition code pattern comprising: marking codes of data expressed by binary or higher numbers on object cells; and generating the object recognition code pattern by assembling one or more of the object cells, wherein a combination of data that corresponds to the object cells in the object recognition code pattern sets an object code value of the corresponding object recognition code pattern, and wherein the object cells included in the object recognition code pattern are provided with two kinds of codes which are arranged so that the codes are in pairs and in an alternation format and the code pairs have respectively equal values repeated in a vertical direction.

[55] The method of generating an object recognition code pattern in claim 54, wherein the object recognition code pattern is formed of the predetermined number of NxM cells where N and M are integers with N=M or N≠M.

[56] The method of generating an object recognition code pattern in claim 54, wherein the object recognition code pattern is formed so that the positions of the object cells in the object recognition code pattern represent the object code value.

[57] The method of generating an object recognition code pattern in claim 54 further comprising before marking data: centering the encoded data marked on the object cell on an intersection of lines a long imaginary X and Y axes that pass the cell at its center; marking the encoded data on the object cell with line segments having their respective angular arrangements with the X or Y axis used as a reference: and setting a value of the corresponding data individually depending on the angular arrangements of the respective line segments.

[58] The method of generating an object recognition code pattern in claim 54 further comprising before marking data: centered on an intersection of lines along imaginary X and Y axes that pass the cell at its center marking encoded data on the object cell with one of a line segment along the X axis, a line segment along the Y axis, a line segment across quadrants 1/3 and a line segment across quadrants 2/4.