JP2002074287A - Data storage medium and information terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data storage medium and information terminal equipment capable of acquiring data in a simple method. SOLUTION: When a maker which has sold a handy scanner 1 finds and corrects the bug of the application program of the handy scanner 1, the maker prints two-dimensional information code 18 indicating a corrected application program on sheets 19, and transmits the two-dimensional code 18 to a user by an FAX. When the user reads the transmitted two-dimensional information code 18 by the handy scanner 1, the handy scanner 1 updates the read application program. Thus, the application program of the handy scanner 1 can be corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data storage medium on which an information code indicating data is displayed, and an information terminal device for reading data stored in the data storage medium.

[0002]

2. Description of the Related Art Conventionally, for example, to install a program on an information terminal device, a program stored on an FD (floppy (registered trademark) disk) or a CD (compact disk) is read, or the file is attached as an e-mail attached file. They send or download from the Internet.

[0003]

However, in the case of an FD or a CD, there is a risk that the cost of the storage medium is increased, copying of the storage medium is troublesome, and the storage medium is damaged.

[0004] In the method of downloading from electronic mail or the Internet, data cannot be transmitted unless the transmission destination of the data is in an environment where electronic mail and the Internet are used. Also, even if the usage environment is well-established, the transmission time will be longer if the data volume is large, and if telephone lines are used, telephone charges will be large, and it is necessary to download each personal computer, which is extremely troublesome. is there.

[0005] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a data storage medium and an information terminal device capable of acquiring data by a simple method.

[0006]

According to the present invention, a plurality of information codes indicating divided data obtained by dividing a series of data into a plurality of data are displayed on a data storage medium made of paper. The data can be restored by reading the divided data indicated by the information code.

According to the second aspect of the present invention, since the data storage medium displays the order display section indicating the reading order of the information codes, the user can reliably identify the information code based on the reading order of the order display section. Can be read.

According to the third aspect of the present invention, since the order information indicating the reading order is stored in the information code, it is possible to determine whether the reading order of the information code is correct based on the order information. Become.

According to the fourth aspect of the present invention, since the information code storing the divided data is displayed on the data storage medium, the information code is read by the reading means.
The restoration means can restore the data based on the divided data indicated by the information code.

According to the fifth aspect of the present invention, when the information code is read in the wrong order by the reading means, the notifying means executes the notifying operation. The reading can be determined to be incorrect.

According to the present invention, the restoring means restores the data from the divided data indicated by the information code based on the order information stored in the information code read by the reading means. Even if the reading order of the codes is incorrect, the data can be reliably restored from the divided data indicated by the information code.

According to the invention of claim 7, the program can be represented by the information code, so that the information terminal device can update the program.

According to the invention of claim 8, the read data can be transmitted to another device, so that the data of the other device can be updated.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) A first embodiment in which the present invention is applied to a handy scanner as an information code reading device will be described below with reference to FIGS. FIG. 2 shows the appearance of the handy scanner. In FIG. 2, a handy scanner (corresponding to an information terminal device) 1 transmits read information wirelessly to a host computer 2 (see FIG. 3), and manages products based on such information. It is supposed to do. A liquid crystal display 3 is provided on the upper surface of the handy scanner 1.
And a key operation unit 4, and various information is displayed on the liquid crystal display 3.

FIG. 3 schematically shows an electric configuration of the handy scanner 1. In FIG. 3, the handy scanner 1 mainly includes a control circuit (corresponding to a restoring unit and a notifying unit) 5.

The control circuit 5 includes a CPU (not shown) and an RO (not shown).
M, RAM, I / O, etc., and operate according to programs stored in ROM. The CCD 6 outputs two-dimensional image data (analog data) indicating the captured two-dimensional information code. The illumination LED 7 illuminates the imaging range of the CCD 6. The binarizing circuit 8 binarizes the two-dimensional image data from the CCD 6 with a threshold value specified by the control circuit 5, and stores the binarized data in a binary image memory 9.

The change point detection circuit 10 outputs a pulse signal to the ratio detection circuit 11 when the signal level from the binarization circuit 8 changes, for example, when the information code is a QR code. The ratio detection circuit 11 counts clock pulses output from the clock signal output circuit 12 between the input of the pulse signal from the change point detection circuit 10 and the input of the next pulse signal. As a result, the continuous length of the light (1) and the continuous length of the dark (0) in the two-dimensional image can be obtained. From the ratio of these lengths, the positioning symbol 13 of the two-dimensional information code (see FIG. 4) is detected.

The positioning symbol 13 has a pattern crossing the center thereof ((a),
(B) and (c) are representative patterns), the light / dark component ratio is dark, light, dark, light, dark = 1: 1: 3: 1: 1. Here, when the ratio detection circuit 11 detects a light-dark component ratio of “1: 1: 3: 1: 1”, the address of the binary image memory 9 generated by the address generation circuit 14 is stored in the address storage memory. 15 is stored.

As a result of the above configuration, when the CCD 6 detects two-dimensional image data for one frame, the binary image memory 9 stores the two-dimensional binary data and stores the binary two-dimensional data in the address storage memory 15. Stores the addresses of the positioning symbols 13 corresponding to the detected positions.

Code processing is performed based on the binary image data formed in the binary image memory 9 and the contents of the address storage memory 15 to determine whether three positioning symbols 13 are present at appropriate positions. It is determined whether the two-dimensional information code exists in the image based on the information code.

That is, if the address of the positioning symbol 13 stored in the address storage memory 15 is 3
It is determined whether the image data can be divided into two groups. If the image data is divided into three groups, three center positions of each positioning symbol 13 are obtained from the 1 (white) / 0 (black) pattern of the image in the binary image memory 9 and the positions It is determined whether or not is located at three vertices.

If the positioning symbol 13 is present at an appropriate position, the position of each cell constituting the two-dimensional information code is determined based on the positioning symbol 13, and then the type of each cell (black White). continue,
Decoding is performed based on the type of each cell to obtain the information represented by the two-dimensional information code, and it is determined whether or not the decoded information is normal. At the same time as transmitting to the computer 2, the buzzer 17 sounds.

Here, the control circuit 5 has a function of updating a previously stored program or parameter based on the data indicated by the two-dimensional information code read by the CCD 6 and transmitting data to another handy scanner 1. Is added, and such a function is used to update its own program as described later, or to use other handy scanners 1.
The feature of the present embodiment is that this program is updated.

FIG. 5 shows an example of a sheet on which the update program indicated by the two-dimensional information code is printed.
In FIG. 5, the program is composed of a plurality of two-dimensional information codes 18, and one program can be constructed by restoring these two-dimensional information codes 18. Here, when the size of one side of one cell of the two-dimensional information code 18 is 0.33 mm, if one two-dimensional information code 18 is generated according to the standard of 129 × 129 cells (including a margin), the A4 size Eight two-dimensional information codes 18 can be arranged on a sheet (corresponding to a data storage medium) 19. However, when the two-dimensional information code 18 is created by a program, the program is binary data.
In the standard of 129 cells (including a margin), 1059-byte information can be encoded in one two-dimensional information code 18. Therefore, a two-dimensional information code 18 corresponding to a program of about 8 Kbytes can be printed on A4 size paper 19.

Here, data indicating the application program to be updated is stored in the data indicated by the two-dimensional information code 18, and the program can be corrected by updating the application program indicated by the data. . In this case, the two-dimensional information code 18
Is printed on a sheet 19 on which a number (corresponding to an order display section) 20 and an arrow (corresponding to an order display section) 21 indicating the reading order of the two-dimensional information code 18 are printed. The two-dimensional information code 18 can be sequentially read based on the information. The amount of data indicated by the two-dimensional information code 18 can be increased by reducing the margin of the paper 19 or lowering the error correction level.

Next, the operation of the above configuration will be described. When a manufacturer that sells the handy scanner 1 finds a bug in, for example, an application program stored in the handy scanner 1 or wants to upgrade the application program, it is necessary to update the application program. In such a case, since the capacity of the application program is relatively small, the two-dimensional information code 18 printed on the sheet 19 shown in FIG.
The program of the capacity constructed by the above can sufficiently cope with the problem.

When the program capacity of the two-dimensional information code 18 printed on one A4 size sheet 19 shown in FIG. 5 is insufficient, the two-dimensional information code 18 is printed on a plurality of sheets 19. .

Then, as shown in FIG. 1, the two-dimensional information code 18 printed on the paper 19 is transmitted to the user by facsimile. Then, a sheet (corresponding to a data storage medium) 22 on which the two-dimensional information code 18 is printed is output from the user's FAX, so that the user can obtain the two-dimensional information based on the number printed on the sheet 22. The code 18 is read in order.

FIG. 6 shows the operation of the control circuit 5 of the handy scanner 1. In FIG. 6, when the user selects an operation of reading information from the leading two-dimensional information code 18 using the handy scanner 1, an instruction to start image reading is given to the CCD 6, and the two-dimensional image reading process is started (S).
101). Thus, the binary image memory 9 stores the binarized two-dimensional image data (binary image data).

Subsequently, whether or not the two-dimensional information code 18 is present in the image is determined based on whether or not three positioning symbols 13 are present at appropriate positions (S102).
In this determination, the binary image memory 9 and the address storage memory 15 are accessed, and it is determined from the stored contents whether the positioning symbol 13 is present at an appropriate position.

When three positioning symbols 13 are detected, it is determined that the two-dimensional information code 18 exists, and the two-dimensional information code 18 is decoded (S103). In this code decoding, the position of each cell in the entire area of the two-dimensional information code 18 is determined based on the position and size of the positioning symbol 13, and the type of each cell (from the contents of the binary image memory 9 at each cell position) is determined. (Black / white) is determined and decoded, and the information indicated by the two-dimensional information code 18 is obtained.

Subsequently, it is determined whether or not the decoded code content is normal (S104). For example, it is determined whether the code is normally read based on whether the number of white and black cells is a predetermined specific number.

If the read code content is not normal and the decoding is unsuccessful (S104: NO), the process returns to step S101 again and repeats until the decoding of the two-dimensional information code 18 is successful.

As described above, when the decoding of the first two-dimensional information code 18 is successful (S104: YE
S), the buzzer 17 sounds (S105). Then, 2
When the reading of the second two-dimensional information code 18 is executed, the data (a part of the application program) indicated by the next two-dimensional information code 18 can be similarly read.

Here, the control circuit 5 stores the data in the memory each time the data is read, and determines whether or not the application program has been successfully constructed based on the read data (S107). If successful (S107: YES), the application program stored in the memory is updated to the application program decrypted from the two-dimensional information code 18 (S108). Thereby, the predetermined application program stored in the handy scanner 1 can be updated.

When updating the parameters stored in the memory of the handy scanner 1, the two-dimensional information code 18 indicating the parameters printed on the paper is transmitted to the user by facsimile.

When the user receives the two-dimensional information code 18, the user sequentially reads the two-dimensional information code 18 in the same manner as described above. As a result, parameters can be constructed from the plurality of two-dimensional information codes 18, and the parameters stored in the memory are stored in the two-dimensional information code 1
8 is updated with the parameters read from the memory.

In an environment where a plurality of handy scanners 1 are used, the operation of reading and updating the application programs one by one by all the handy scanners 1 is troublesome.

In such a case, the application program or parameter read using the wireless function of the handy scanner 1 is transmitted to another handy scanner 1 as shown in FIG. Thereby, the application program or the parameters stored in the other handy scanner 1 can be updated.

According to such an embodiment, when updating data such as a program or a parameter of the handy scanner 1, the two-dimensional information code 18 indicating the data is transmitted to the user by facsimile, and The program or parameters can be updated by reading the two-dimensional information code 18 printed on the sheet 22 output from the facsimile by the handy scanner 1. Therefore, as compared with a case where a data storage medium such as an FD or a CD in which data is stored is manufactured and delivered, the delivery time to the user can be greatly reduced, and the data storage medium can be shortened during the delivery. Is not damaged. In addition, compared with the case of transmission by e-mail or the Internet, there is no restriction on the use environment, the data transmission time is short, and the telephone charge can be suppressed.

In this case, the number 20 printed on the paper 22
Since the two-dimensional information code 18 can be read according to the arrow 21 and the arrow 21, the two-dimensional information code can be reliably read by the handy scanner 1.

(Second Embodiment) Next, a second embodiment of the present invention will be described with reference to FIG. 8. The same steps as those in the first embodiment are denoted by the same step numbers. And the description is omitted. The second embodiment is characterized in that the two-dimensional information code 18 includes order information indicating the reading order.

In FIG. 8 showing the operation of the control circuit 5 of the handy scanner 1, the control circuit 5 determines the reading order of the two-dimensional information code 18 based on the read code content (S201), and the reading order is incorrect. (S20
1: NO), an error is notified by increasing the ringing time of the buzzer 17 (S202).

Therefore, the user can use the two-dimensional information code 18
If an error is reported when reading the two-dimensional information code 18, the reading of the two-dimensional information code 18 is re-executed on the assumption that the reading order of the two-dimensional information code 18 is incorrect.

According to such an embodiment, even if the reading order of the two-dimensional information code 18 is wrong, the wrong reading order can be recognized by the buzzer 17 so that the first reading order can be recognized. Compared to the embodiment, it is possible to quickly cope with a mistake in the reading order of the two-dimensional information code 18.

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIG. 9. The same steps as those in the first embodiment are denoted by the same step numbers. The description is omitted. The third embodiment is characterized in that the handy scanner 1 has a data sorting function.

In FIG. 9 showing the operation of the control circuit 5, when the data is read from the two-dimensional information code 18, the control circuit 5 automatically converts the data based on the order information contained in the two-dimensional information code 18. (S30)
1) Even if the reading order of the two-dimensional information code 18 is incorrect, it is possible to construct an application program without re-reading the two-dimensional information code 18.

According to such an embodiment, an application program can be automatically constructed on the basis of data read from the two-dimensional information code 18, so that it can be compared with the first and second embodiments. Thus, even if the reading order of the two-dimensional information codes 18 is wrong, an application program can be constructed, and the reading workability can be improved.

The present invention is not limited to the above embodiments, but can be modified or expanded as follows. Multiple 2
The paper on which the dimension information code is printed may be mailed to the user. The reading order of the two-dimensional information code to be read next may be displayed on the handy scanner 1.
If the reading order is incorrect, the correct reading order may be displayed or notified by voice. A barcode may be adopted as the information code of the present invention.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing transmission of a two-dimensional information code according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a handy scanner.

FIG. 3 is a schematic diagram showing an electrical configuration of the handy scanner.

FIG. 4 is a diagram showing positioning symbols.

FIG. 5 is a diagram showing a two-dimensional information code for transmission.

FIG. 6 is a flowchart showing the operation of the control circuit.

FIG. 7 is a conceptual diagram showing communication with another handy scanner.

FIG. 8 is a view corresponding to FIG. 6, showing a second embodiment of the present invention;

FIG. 9 is a view corresponding to FIG. 6, showing a third embodiment of the present invention;

[Explanation of symbols]

1 is a handy scanner (information terminal device), 5 is a control circuit (restoring means, notifying means), 18 is a two-dimensional information code,
9 is a sheet (data storage medium), 20 is a number (order display section), 21 is an arrow (order display section), and 22 is a sheet (data storage medium).

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) H04N 1/107 H04N 1/04 A F term (reference) 5B035 BB03 BB11 5B072 CC21 DD01 DD23 FF02 GG07 JJ11 KK03 LL13 LL19 MM04 MM12 5B076 EA00 5C062 AA05 AB18 AB38 AB42 AC02 AC22 AC34 AC56 AE07 BA00 5C072 AA01 BA02 PA04 PA10

Claims (8)

[Claims] 1. A data storage medium comprising a sheet on which a plurality of information codes respectively indicating divided data obtained by dividing a series of data into a plurality of pieces of data. 2. The data storage medium according to claim 1, wherein an order display section indicating an order of reading the information code is displayed on the sheet. 3. The information code according to claim 1, wherein the information code includes order information indicating a reading order.
A data storage medium as described. 4. A reading means for reading an information code stored in the data storage medium according to claim 1; and a restoring means for restoring data from the divided data indicated by the information code read by the reading means. An information terminal device characterized by the above-mentioned. 5. A reading means for reading an information code stored in a data storage medium according to claim 3, a restoring means for restoring data from divided data indicated by the information code read by said reading means, and said reading means An information terminal device comprising: a notifying unit that executes a notifying operation when the order information stored in the read information code is read out of order. 6. A reading means for reading an information code stored in the data storage medium according to claim 3, and divided data indicated by the information code based on the order information stored in the information code read by the reading means. And a restoring means for restoring data from the information terminal device. 7. The information terminal device according to claim 1, wherein the data is a program. 8. The information terminal device according to claim 1, further comprising a function of transmitting the data to another device.