JP2004207852A - Image communication system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image communication system for enabling a mobile phone to properly pick up an image displayed on an information code reader without the need for complicated procedures and without taking much time. <P>SOLUTION: The information code reader 3 displays a test pattern, makes a camera 5 of the mobile phone 2 image the test pattern prior to displaying a two-dimensional code, calculates a proper display position with respect to a display unit 6 of the mobile phone 2 within the display range of a display apparatus 12 by imaging the test pattern imaged by the mobile phone 2 and displays the two-dimensional code at the proper display position. Thus, the information code reader 3 can display the two-dimensional code at a position at which the camera 5 of the mobile phone 2 can properly image the two-dimensional code. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
According to the present invention, a fixed terminal captures an image displayed on a portable terminal, and the portable terminal captures an image displayed on the fixed terminal. The present invention relates to an image communication system for two-way communication of images with a terminal.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, a mobile phone with a camera function (hereinafter, referred to as a mobile phone) and an information code reader are used, and an information code reader captures (reads) an image displayed on the mobile phone and reads an information code. 2. Description of the Related Art An image communication system is provided in which an image displayed on a device is picked up by a camera-equipped mobile phone so that an image is bidirectionally communicated between the mobile phone and an information code reader (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-2002-109420
[0004]
[Problems to be solved by the invention]
By the way, there are many types of mobile phones, and there is a type in which the camera is arranged at the center of the housing, and a type in which the camera is arranged at the end of the housing. The position where it differs depends on the type. In addition, the size and shape of the mobile phone itself vary depending on the type.
[0005]
Under such circumstances, it is difficult to position the mobile phone at an appropriate position with respect to the information code reader when trying to make the mobile phone image the image displayed on the information code reader. There is a problem that it takes troublesome labor and a great deal of time until the image displayed on the reading device is appropriately captured by the mobile phone.
[0006]
The present invention has been made in view of the above circumstances, and an object of the present invention is to appropriately capture an image displayed on a fixed terminal into a portable terminal without complicated work and a great deal of time. It is another object of the present invention to provide an image communication system that can improve the convenience.
[0007]
[Means for Solving the Problems]
According to the image communication system of the first aspect, in the fixed terminal, the second control means displays the test pattern at a predetermined display position within the display range of the second display means. In the portable terminal, when the test pattern is displayed at a predetermined display position within the display range of the second display means, the first control means causes the displayed test pattern to be imaged by the first imaging means. And displaying the test pattern imaged by the first imaging means on the first display means in real time.
[0008]
Next, in the fixed terminal, when the test pattern imaged by the first imaging means is displayed on the first display means, the second control means switches the first display means on which the test pattern is displayed. An image is made to be imaged by the second imaging means, and the size, shape, and position of the test pattern imaged by the second imaging means are based on the relative relationship between the size, shape, and position of the display range of the first display means. An appropriate display position for the first display means within the display range of the second display means is calculated. Then, the second control means causes the target image to be displayed at the calculated proper display position.
[0009]
That is, according to this, the fixed terminal displays the test pattern and causes the portable terminal to capture an image before displaying the target image, and the test pattern captured by the portable terminal. , The proper display position for the first display means within the display range of the second display means is calculated, and the target image is displayed at the proper display position. Thus, the fixed terminal can display a target image at a position where the portable terminal can appropriately capture an image. Without this, the image displayed on the fixed terminal can be appropriately captured by the portable terminal, and the convenience can be improved.
[0010]
According to the image communication system described in claim 2, in the fixed terminal, the second control means determines that the first imaging means cannot image the test pattern displayed on the second display means. The test pattern is displayed at another predetermined display position within the display range of the second display means. As a result, even if the fixed type terminal cannot calculate the proper display position despite displaying the test pattern, the fixed type terminal changes the display position and displays the test pattern again so that the proper display can be performed. The possibility that the position can be calculated can be increased.
[0011]
According to the image communication system described in claim 3, in the fixed type terminal, the second control means may display the test pattern at all of a plurality of different predetermined display positions set in advance. If the first imaging means cannot image the test pattern displayed on the second display means, it notifies that the first imaging means cannot image the test pattern. Thereby, the fixed terminal can make the user appropriately recognize that the portable terminal cannot image the test pattern.
[0012]
According to the image communication system of the fourth aspect, in the fixed terminal, the second control means causes the second display means to display a polygonal figure as a test pattern. With this, the fixed terminal can determine the relative relationship between the size, shape, and position of the captured test pattern and the size, shape, and position of the display range of the first display unit, by changing the angle and side of the polygon. It is possible to appropriately recognize based on the length, and it is possible to appropriately calculate a proper display position.
[0013]
According to the image communication system described in claim 5, in the fixed type terminal, when displaying the target image at the proper display position, the second control means may display all the regions of the target image in the second position. If the display is not possible within the display range of the second display means, it is determined whether or not the correct display position can be corrected. If the correct display position can be corrected, the proper display position is corrected. Is displayed at the corrected proper display position.
[0014]
Thereby, when the fixed type terminal displays the target image at the appropriate display position, even if it is impossible to display the entire area of the target image within the display range of the second display means, By correcting the proper display position and displaying the target image at the corrected proper display position, the target image can also be displayed at a position where the portable terminal can appropriately capture the image. Thus, the image displayed on the fixed terminal can be appropriately captured by the portable terminal.
[0015]
According to the image communication system described in claim 6, in the fixed type terminal, the second control means sets the test pattern within the display range of the second display means when the correct display position cannot be corrected. It is displayed at another predetermined display position. With this, even if the fixed terminal cannot correct the proper display position of the test pattern, the fixed display terminal can calculate the proper display position again by changing the display position and displaying the test pattern again. It can increase the possibilities.
[0016]
According to the image communication system described in claim 7, in the fixed terminal, the second control means causes the second display means to display a two-dimensional code as a target image. Thereby, the fixed terminal codes desired data to be transmitted to the portable terminal, displays the generated two-dimensional code on the second display means, and causes the first imaging means to image the two-dimensional code. Thus, desired data can be appropriately transmitted to a portable terminal.
[0017]
According to the image communication system described in claim 8, in the portable terminal, the first control means decodes the two-dimensional code imaged by the first imaging means to generate decoded data, and generates the decoded data. The decrypted data is stored in the first storage means, and the generated decrypted data is output from the first output means. Thereby, the portable terminal can store and output desired data received from the fixed terminal as needed, and can flexibly cope with the form of the system.
[0018]
According to the image communication system described in claim 9, in the portable terminal, the first control means causes the first display means to display the two-dimensional code as an image. Thereby, the portable terminal codes desired data to be transmitted to the fixed terminal, displays the generated two-dimensional code on the first display means, and causes the second imaging means to image the generated two-dimensional code. Thus, desired data can be appropriately transmitted to a fixed terminal.
[0019]
According to the image communication system described in claim 10, in the fixed terminal, the second control means generates the decoded data by decoding the two-dimensional code imaged by the second imaging means. The decrypted data is stored in the second storage means, and the generated decrypted data is output from the second output means. As a result, the fixed terminal can store and output desired data received from the portable terminal as necessary, and can flexibly respond to the form of the system.
[0020]
According to the image communication system of the eleventh aspect, in the fixed terminal, the second control means causes the image taken by the second imaging means to be displayed on the second separate display means in real time. Thereby, the fixed terminal can make the user recognize the image captured by the second imaging unit, and the relative range between the imaging range of the second imaging unit and the display range of the first display unit. The user can recognize the positional relationship. Accordingly, the user can also recognize the relative positional relationship between the second display unit and the first imaging unit, that is, the relative position between the portable terminal and the fixed terminal. It is possible to make the user recognize even a great positional relationship.
[0021]
According to the image communication system of the twelfth aspect, in the fixed terminal, the second control means, when the detection means detects that the portable terminal is located at the predetermined reading position, sets the test pattern. To display at a predetermined display position within the display range of the second display means, to cause the second imaging means to image the test pattern displayed on the first display means, The operation of displaying the taken image on the second different display means is started. Thus, the fixed terminal can efficiently perform each of these operations at appropriate timing.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to a mobile phone with a camera function as a mobile terminal (hereinafter, referred to as a mobile phone) and an information code reader is applied as a fixed terminal with reference to the drawings. Will be explained.
[0023]
First, FIG. 1 shows, as a functional block diagram, an electric configuration of a mobile phone 2 and an information code reading device 3 which constitute an image communication system 1. The mobile phone 2 includes a control circuit 4 (first control means in the present invention), a camera 5 (first imaging means in the present invention), a display 6 (first display means in the present invention), a microphone 7, a speaker 8, a keyboard 9, a memory 10 (first storage means in the present invention), and a wireless circuit 11 (first output means in the present invention).
[0024]
The control circuit 4 is mainly configured by a microcomputer, and controls the overall operation of the mobile phone 2 by executing a control program. In the camera 5, as shown in FIG. 2, the mobile phone 2 is located at a predetermined reading position, and the display 12 (second display means in the present invention) of the information code reading device 3 faces the camera 5. During the operation, the test pattern and the two-dimensional code displayed on the display unit 12 can be captured, and the captured image is output to the control circuit 4.
[0025]
When a test pattern is input from the camera 5, the control circuit 4 displays the input test pattern on the display 6 in real time. On the other hand, when a two-dimensional code is input from the camera 5, the input two-dimensional code is displayed. Analyze code and generate analysis data. In this case, as shown in FIG. 3, the display range of the display unit 12 of the information code reading device 3 is relatively larger than the imaging range (imaging visual field) of the camera 5 (the range indicated by the dashed line P in FIG. 3). It is getting bigger.
[0026]
The display 6 displays a test pattern imaged by the camera 5 and displays a two-dimensional code in which data to be transmitted from the mobile phone 2 to the information code reading device 3 is coded. The microphone 7 inputs a voice uttered by the user as a transmission voice. The speaker 8 outputs a voice received by the wireless circuit 11 from the wireless communication network as a received voice.
[0027]
The keyboard 9 is configured by arranging a power key, a call start key, a call end key, a numeric key, and the like for the user to operate. When any key is operated, an operation indicating the operated key is performed. The signal is output to the control circuit 4. The memory 10 stores analysis data generated by the control circuit 4 analyzing the two-dimensional code. The wireless circuit 11 transmits (outputs) the analysis data generated by the control circuit 4 analyzing the two-dimensional code to the wireless communication network.
[0028]
The information code reading device 3 includes a control circuit 13 (second control means according to the present invention), a CCD sensor 14 (second imaging means according to the present invention), an imaging lens 15, an amplifier circuit 16, an A / D converter. Circuit 17, synchronization signal generation circuit 18, address generation circuit 19, image memory 20, display 12, display 21 (second alternative display means in the present invention), proximity sensor 22 (detection means in the present invention) , An operation switch 23, an LED 24, a buzzer 25, a memory 26 (a second storage unit according to the present invention), and a communication interface circuit 27 (a second output unit according to the present invention).
[0029]
The control circuit 13 is mainly configured by a microcomputer, and controls the overall operation of the information code reading device 3 by executing a control program. As shown in FIG. 2, the CCD sensor 14 can capture a test pattern or a two-dimensional code displayed on the display 6 through the imaging lens 15 when the display 6 of the mobile phone 2 is facing. Has become. In this case, as shown in FIG. 3, the imaging range (imaging visual field) of the CCD sensor 14 of the information code reading device 3 (the range indicated by the one-dot chain line Q in FIG. 3) is displayed on the display 6 of the mobile phone 2. It is relatively larger than the range.
[0030]
The CCD sensor 14 outputs the captured image as a scanning line signal to the amplifier circuit 16 in synchronization with the synchronization signal (clock signal) input from the synchronization signal generation circuit 18. When the scanning line signal is input from the CCD sensor 14, the amplification circuit 16 amplifies the input scanning line signal and outputs the signal to the A / D conversion circuit 17. When the scanning line signal amplified from the amplification circuit 16 is input to the A / D conversion circuit 17, the A / D conversion circuit 17 converts the input scanning line signal into a digital signal having multiple levels and outputs the digital signal to the image memory 20.
[0031]
The address generation circuit 19 generates an address for the image memory 20 based on the synchronization signal input from the synchronization signal generation circuit 18. Then, the control circuit 13 stores the digital signal output from the A / D conversion circuit 17 as image information at the address of the image memory 20 set by the address generation circuit 19. Further, the control circuit 13 reads out the image information stored in the image memory 20 and inputs a test pattern or a two-dimensional code imaged by the CCD sensor 14. When the two-dimensional code is input, the control circuit 13 receives the input. Analyze the two-dimensional code and generate analysis data.
[0032]
The above-described display 12 displays a test pattern or displays a two-dimensional code in which data to be transmitted from the information code reading device 3 to the mobile phone 2 is coded. In this case, the display unit 12 displays the test pattern at a predetermined display position which is set in advance. Specifically, as shown in FIG. 4, the test pattern is displayed as “1” to “9”. Are sequentially displayed at each of a plurality of predetermined display positions indicated by. Note that the numbers in the circles in the above “1” to “9” indicate the priority, and the test patterns are displayed in ascending order. On the other hand, the display 21 displays an image captured by the CCD sensor 14 in real time, and is disposed at a position where the user can easily see it. That is, the user can recognize the image captured by the CCD sensor 14 by looking at the display screen of the display 21.
[0033]
The proximity sensor 22 is configured by, for example, a transmission-type photoelectric sensor in which a light projecting element and a light receiving element are arranged to face each other, and light emitted from the light projecting element is not received by the light receiving element (light blocking). The mobile phone 2 monitors whether the mobile phone 2 is located at a predetermined reading position. In this case, when the proximity sensor 22 detects that the light emitted from the light emitting element is not received by the light receiving element and detects that the mobile phone 2 is located at the predetermined reading position, the proximity sensor 22 outputs a detection signal. Output to the control circuit 13. Here, the predetermined reading position is a position where the camera 5 of the mobile phone 2 and the display 12 of the information code reading device 3 face each other as described above.
[0034]
The operation switch 23 is configured by arranging various switches for the user to operate, and when any switch is operated, outputs an operation signal indicating the operated switch to the control circuit 4. The LED 24 is configured to light or blink when a drive signal is input from the control circuit 13, and the buzzer 25 is configured to sound when a drive signal is input from the control circuit 13. .
[0035]
The memory 26 stores analysis data generated by the control circuit 13 analyzing the two-dimensional code. The communication interface circuit 27 outputs analysis data generated by analyzing the two-dimensional code by the control circuit 13 to the outside. In this case, the communication interface circuit 27 may be configured to output the analysis data to the outside by wireless communication, or may be configured to output the analysis data to the outside by wire communication.
[0036]
Next, the operation of the above configuration will be described with reference to FIGS. Here, FIG. 5 shows a process performed by the control circuit 13 of the information code reading device 3 as a flowchart, and FIG. 6 shows a process performed by the control circuit 4 of the mobile phone 2 as a flowchart. Here, description will be made on the assumption that a square of a predetermined size is displayed as a test pattern and a two-dimensional code (in this case, a QR code) is displayed as a target image.
[0037]
The control circuit 13 of the information code reader 3 monitors whether or not the mobile phone 2 is located at a predetermined reading position by monitoring whether or not a detection signal is input from the proximity sensor 22 (step). S1). When the control circuit 13 detects that the mobile phone 2 is located at the predetermined reading position by inputting the detection signal from the proximity sensor 22 ("YES" in step S1), the display position of the test pattern is displayed. Is set to the initial position (step S2), and the test pattern is displayed on the display 12 (step S3). More specifically, the control circuit 13 sets the display position of the test pattern to the display position of “(1)” shown in FIG. 4, and displays the test pattern on the display 12 as shown in FIG. Is displayed at the display position of “1” in the display range of “1”.
[0038]
On the other hand, the control circuit 4 of the mobile phone 2 sets the imaging mode (step T1), and in response to the display of the image on the display 12 of the information code reader 3, the display 12 of the information code reader 3 When the camera 5 captures the image displayed in (2), the image is input from the camera 5 (step T2). In this case, since the image displayed on the display 12 of the information code reading device 3 is the test pattern, the camera 5 captures the test pattern, and captures the test pattern (the dashed line P in FIG. 7A). Is assumed to be in a positional relationship as shown in FIG. 7A with respect to the display range of the display 12 of the information code reader 3, the display is displayed on the display 12 of the information code reader 3. The lower half of the test pattern is imaged.
[0039]
Next, the control circuit 4 causes the display 6 to display the image input from the camera 5 (step T3). In this case, since the lower half image of the test pattern is input from the camera 5, the control circuit 4 causes the display 6 to display the lower half image of the test pattern as shown in FIG.
[0040]
Then, the control circuit 4 checks whether or not the two-dimensional code exists in the image input from the camera 5 (Step T4). In this case, since the image input from the camera 5 is a test pattern, the control circuit 4 detects that the two-dimensional code does not exist in the image input from the camera 5 ("NO" in step T5). ), And return to step T2 described above.
[0041]
The control circuit 13 of the information code reading device 3 receives the image displayed on the display 6 of the mobile phone 2 and, when the CCD sensor 14 captures the image displayed on the display 6 of the mobile phone 2, An image is input from the memory 20 (step S4). In this case, the imaging range of the CCD sensor 14 (the range indicated by the dashed-dotted line Q in FIG. 8A) is different from the display range of the display 6 of the mobile phone 2 in FIG. Assuming the positional relationship as shown, not only the test pattern displayed on the display 6, that is, the test pattern captured by the camera 5 of the mobile phone 2, but also the entire display 6 on which the test pattern is displayed Will also be imaged.
[0042]
Next, the control circuit 13 analyzes the input image and detects a test pattern (step S5). In this case, the control circuit 13 detects that the test pattern has been successfully detected because the test pattern has been captured by the CCD sensor 14 ("YES" in step S6). Then, the control circuit 13 calculates an appropriate display position (Step S7). Hereinafter, a procedure in which the control circuit 13 calculates an appropriate display position will be described.
[0043]
The control circuit 13 displays the display 6 based on the relative relationship between the size, shape, and position of the test pattern displayed on the display 6 of the mobile phone 2 and the size, shape, and position of the display range of the display 6. Then, the moving distance and moving direction from the center of the test pattern displayed to the vicinity of the center of the display range of the display 6 are calculated. More specifically, the control circuit 13 calculates the coordinates of the center of the test pattern displayed on the display 6 and the coordinates near the center of the display range of the display 6 to obtain the coordinates shown in FIG. As shown, “a1” is an index indicating the moving distance and moving direction from the center of the test pattern displayed on the display 6 to the vicinity of the center of the display range of the display 6 (see S1 in FIG. 8B). "And" b1 "are calculated. Here, “a1” and “b1” are the distance in the x direction (horizontal direction) and the y direction (vertical direction) between the center of the test pattern displayed on the display 6 and the vicinity of the center of the display range of the display 6, respectively. ) Distance.
[0044]
Next, the control circuit 13 calculates an appropriate display position based on “a1” and “b1” thus calculated. More specifically, the control circuit 13 sets the length of the test pattern displayed on the display 6 in the x direction to “X1 (see FIG. 8B)”, and sets the length of the test pattern displayed on the display 6 to y. The length in the direction is "Y1 (see FIG. 8B)", the length in the x direction of the test pattern displayed on the display 12 is "X2 (see FIG. 9A)", and is displayed on the display 6. Assuming that the length of the obtained test pattern in the y direction is “Y2 (see FIG. 9A)”,
a1 / a2 = X1 / X2
b1 / b2 = Y1 / Y2
"A2" and "b2" are calculated so as to satisfy the relationship. Then, as shown in FIG. 9A, the control circuit 13 sets the position translated from the center of the test pattern displayed on the display 12 by the distance of “a2” and “b2” to the proper display position. (See S2 in FIG. 9A).
[0045]
After calculating the proper display position in this way, the control circuit 13 codes the data to be transmitted to generate a two-dimensional code (step S8). Next, the control circuit 13 compares the proper display position with the size of the two-dimensional code, and checks whether or not the entire area of the two-dimensional code can be displayed within the display range of the display 12 (step S9). ).
[0046]
Here, when the control circuit 13 detects that the entire area of the two-dimensional code can be displayed within the display range of the display 12 ("YES" in step S10), as shown in FIG. 9B. Next, the two-dimensional code is displayed at the appropriate display position (step S11). Then, the control circuit 13 erases the two-dimensional code after a predetermined time has elapsed since the two-dimensional code was displayed at the appropriate display position (initializes the screen) (step S12). The control circuit 13 may delete the two-dimensional code when detecting that the mobile phone 2 is no longer located at the predetermined reading position.
[0047]
Through the series of processes described above, the information code reading device 3 can display the two-dimensional code at a position where the camera 5 of the mobile phone 2 can appropriately capture an image. 5 makes it possible to appropriately transmit data to be transmitted to the mobile phone 2.
[0048]
When the two-dimensional code is displayed on the display 12 of the information code reading device 3 in this manner, the camera 5 of the mobile phone 2 captures the two-dimensional code, and the control circuit 4 When the image of the two-dimensional code is input from 5, the presence of the two-dimensional code is detected in the image input from camera 5 ("YES" in step T5), and the two-dimensional code is decoded (step T5). Step T6). When detecting that the two-dimensional code has been successfully decoded (“YES” in step T7), the control circuit 4 stores the decoded data generated by decoding the two-dimensional code in the memory 10 (step T8). ). In this case, the control circuit 4 may cause the wireless circuit 11 to transmit the decrypted data generated by decrypting the two-dimensional code to the wireless communication network.
[0049]
By the way, in the information code reading device 3, when the control circuit 13 detects that the detection of the test pattern has failed (“NO” in step S6), it determines whether or not all the display positions have been set (step S6). S13) If it is detected that all display positions have not been set ("NO" in step S13), the display position of the test pattern is set to the next position (step S14), and the test pattern is displayed on the display 12. It is displayed again (step S3), and thereafter, the above processing is repeated.
[0050]
More specifically, the control circuit 13 sets the display position of the test pattern to the display position of “2” shown in FIG. 4, and displays the test pattern on the display range of the display 12 as shown in FIG. Is displayed at the display position of "[2]" in the above, and thereafter, the above processing is repeated. When the control circuit 13 detects that the test pattern has failed to be detected even when the test pattern is displayed at the display position of “2” in the display range of the display device 12, the control circuit 13 changes the display position of the test pattern. The display position "3" shown in FIG. 4 is set, and thereafter, the above processing is repeated.
[0051]
On the other hand, when the control circuit 13 detects that all display positions have been set (“YES” in step S13), the control circuit 13 sounds a warning sound from the buzzer 25, for example, and reads “test pattern A message indicating that the camera 5 of the mobile phone 2 cannot image the test pattern, such as "cannot be performed", is displayed on the display 21 (step S15). In this case, the control circuit 13 may cause the display 21 to display a message urging the user to correct the position of the camera 5 such as “Please correct the position of the camera”.
[0052]
Further, the control circuit 13 checks whether or not all the areas of the two-dimensional code can be displayed within the display range of the display 12 (step S10). When it is detected that display is not possible within the display range ("NO" in step S10), the following processing is performed.
[0053]
That is, the control circuit 13 determines whether or not the proper display position can be corrected (step S16), and when it is detected that the proper display position can be corrected ("YES" in step S16), the proper display is performed. The position is corrected (step S17), and the two-dimensional code is displayed at the corrected proper display position (step S11).
[0054]
More specifically, as shown in FIG. 10B, when the two-dimensional code is to be displayed at the proper display position, when the part of the two-dimensional code is out of the display range of the display 12, as shown in FIG. , The size of the two-dimensional code (see W1 in FIG. 10 (b)) and the range where the imaging range of the camera 5 of the mobile phone 2 and the display range of the display 12 overlap (see r in FIG. 10 (b)). ) To determine whether the correct display position can be corrected.
[0055]
Then, as shown in FIG. 10B, when the size of the two-dimensional code is smaller than the range where the imaging range of the camera 5 of the mobile phone 2 and the display range of the display 12 overlap, as shown in FIG. (W1 <r), the correct display position is corrected as shown in FIG. 11A (see S2 'in FIG. 11A), and the two-dimensional code is corrected as shown in FIG. 11B. Is displayed at the designated display position.
[0056]
On the other hand, if the control circuit 13 detects that the correct display position cannot be corrected ("NO" in step S16), the control circuit 13 sets all the display positions without correcting the proper display position. It is determined whether or not all the display positions have not been set ("NO" in step S13), and the display position of the test pattern is set to the next position (step S14). ), The test pattern is displayed again on the display 12 (step S3), and thereafter, the above processing is repeated.
[0057]
More specifically, as shown in FIG. 12 (b), the control circuit 13 has a large two-dimensional code size and a two-dimensional code size (see W2 in FIG. 12 (b)). When the imaging range of the second camera 5 and the display range of the display 12 are larger than the overlapping range (W2> r), the correct display position is not corrected. The above-described process of determining whether or not the suitability display position can be corrected and correcting the suitability display position (steps S16 and S17) is not necessarily performed, and may be performed selectively. is there.
[0058]
When the two-dimensional code displayed on the display 6 of the mobile phone 2 is imaged by the CCD sensor 14, the information code reading device 3 decodes the two-dimensional code, and the two-dimensional code is decoded and generated. The decoding data is stored in the memory 26 or output from the communication interface circuit 27 to the outside.
[0059]
As described above, according to the present embodiment, prior to displaying the two-dimensional code, the information code reading device 3 displays the test pattern and causes the camera 5 of the mobile phone 2 to take an image. Since the appropriate display position of the mobile phone 2 with respect to the display 6 within the display range of the display 12 is calculated by imaging the test pattern imaged by the above, the two-dimensional code is displayed at the appropriate display position. In addition, the two-dimensional code can be displayed at a position where the camera 5 of the mobile phone 2 can appropriately capture the two-dimensional code, and the two-dimensional code can be appropriately captured by the mobile phone 2 without complicated labor and a great deal of time. And the convenience can be improved.
[0060]
Further, in the information code reading device 3, when the camera 5 of the mobile phone 2 cannot image the test pattern, the display position is changed and the test pattern is displayed again, so that the test pattern is displayed. Even if the proper display position cannot be calculated in spite of this, by changing the display position and displaying the test pattern again, it is possible to increase the possibility that the proper display position can be calculated.
[0061]
Further, in the information code reading device 3, even if the test pattern is displayed in all display positions, if the camera 5 of the mobile phone 2 cannot image the test pattern, the camera 5 of the mobile phone 2 captures the test pattern. Since the message indicating that the test pattern cannot be displayed is displayed on the display 21, the user can appropriately recognize that the test pattern cannot be captured.
[0062]
In the information code reading device 3, when displaying the two-dimensional code at the proper display position, if the entire area of the two-dimensional code cannot be displayed within the display range of the display 12, the correct display position is corrected. It is determined whether or not it is possible, and if the proper display position can be corrected, the proper display position is corrected, and the two-dimensional code is configured to be displayed at the corrected proper display position. By performing the correction, also in this case, the two-dimensional code can be displayed at a position where the camera 5 of the mobile phone 2 can appropriately capture an image, and the two-dimensional code can be appropriately captured by the mobile phone 2.
[0063]
The mobile phone 2 decodes the two-dimensional code imaged by the camera 5 to generate decoded data, stores the generated decoded data in the memory 10, and transmits the generated decoded data to the wireless circuit 11 wirelessly. Since the data is transmitted to the communication network, desired data received from the information code reader 3 can be stored and output as needed, and can be flexibly handled according to the form of the system. can do.
[0064]
The information code reader 3 decodes the two-dimensional code imaged by the CCD sensor 14 to generate decoded data, stores the generated decoded data in the memory 26, and transmits the generated decoded data to the communication interface. Since the circuit 27 is configured to output to the outside, desired data received from the mobile phone 2 can be stored and output as needed, and can be flexibly handled according to the form of the system. can do.
[0065]
Further, in the information code reading device 3, since the image picked up by the CCD sensor 14 is configured to be displayed on the display 21, the image picked up by the CCD sensor 14 can be recognized by the user. Thus, the user can recognize the relative positional relationship between the imaging range of the CCD sensor 14 and the display range of the display 6 of the mobile phone 2.
[0066]
Further, in the information code reading device 3, when the mobile phone 2 is located at a predetermined reading position, the operation of displaying the test pattern at the display position or the test pattern displayed on the display 6 of the mobile phone 2 is performed. Since the operation of causing the CCD sensor 14 to capture an image and the operation of displaying the image captured by the CCD sensor 14 on the display 21 are started, each of these operations can be efficiently performed at an appropriate timing.
[0067]
The present invention is not limited to the above-described embodiment, but can be modified or expanded as follows.
The portable terminal may be configured to display the test pattern, and the role in the above-described embodiment may be switched between the portable terminal and the fixed terminal.
The mobile terminal is not limited to a mobile phone with a camera function, but may be a mobile information terminal with a camera function. Further, the fixed terminal may have a function of a POS terminal.
[0068]
The target image may be a two-dimensional code other than the QR code, and may be another one such as PDF417, Maxi Code, or Data Matrix. Further, the target image may be a one-dimensional code.
The proximity sensor may be configured by a reflective photoelectric sensor.
The imaging means may be a CMOS sensor or an area sensor.
[Brief description of the drawings]
FIG. 1 is a functional block diagram showing an embodiment of the present invention.
FIG. 2 is a diagram schematically showing a state in which a camera of a mobile phone faces a display of an information code reader, and a CCD sensor of the information code reader faces a display of the mobile phone.
FIG. 3 shows the magnitude relationship between the imaging range of the camera of the mobile phone and the display range of the display of the information code reader, and the magnitude relationship between the imaging range of the CCD sensor of the information code reader and the display range of the display of the mobile phone. Perspective view schematically showing
FIG. 4 is a diagram showing a display position of a test pattern.
FIG. 5 is a flowchart showing processing of the information code reading device.
FIG. 6 is a flowchart showing processing of the mobile phone.
FIG. 7 is a diagram showing an operation.
FIG. 8 is a diagram corresponding to FIG. 7;
FIG. 9 is a diagram corresponding to FIG. 7;
FIG. 10 is a diagram corresponding to FIG. 7;
FIG. 11 is a diagram corresponding to FIG. 7;
FIG. 12 is a diagram corresponding to FIG. 7;
[Explanation of symbols]
In the drawings, 1 is an image communication system, 2 is a mobile phone with a camera (portable terminal), 3 is an information code reader (fixed terminal), 4 is a control circuit (first control means), and 5 is a camera (First imaging means), 6 is a display (first display means), 10 is a memory (first storage means), 11 is a wireless circuit (first output means), and 12 is a display (second display means). , 13 is a control circuit (second control means), 14 is a CCD sensor (second imaging means), 21 is a display (second other display means), and 22 is a proximity sensor (detection means). ) And 26 are memories (second storage means), and 27 is a communication interface circuit (second output means).

Claims (12)

A portable type including: a first imaging unit that captures an image; a first display unit that displays an image; and a first control unit that controls the first imaging unit and the first display unit. Terminal,
A fixed imaging device including: a second imaging unit that captures an image; a second display unit that displays an image; and a second control unit that controls the second imaging unit and the second display unit. Terminal,
An image communication system comprising:
The first control means causes the first imaging means to image a test pattern displayed at a predetermined display position within the display range of the second display means, and the test pattern is imaged by the first imaging means. Displaying the test pattern on the first display means,
The second control means displays a test pattern at a predetermined display position within a display range of the second display means, and displays the first display means on which the test pattern is displayed by the second imaging means. And a second pattern based on the relative relationship between the size, shape, and position of the test pattern imaged by the second imaging means and the size, shape, and position of the display range of the first display means. An image display system for calculating an appropriate display position for the first display means within a display range of the display means, and displaying a target image at the calculated appropriate display position. The image communication system according to claim 1,
The second control unit, when the test pattern displayed on the second display unit cannot be imaged by the first imaging unit, separates the test pattern within the display range of the second display unit. An image communication system, wherein the image is displayed at a predetermined display position. The image communication system according to claim 2,
The second control means may display the test pattern displayed on the second display means in the first imaging means even if the test pattern is displayed at all of a plurality of different predetermined display positions set in advance. An image communication system for notifying that the first imaging means cannot image a test pattern when the image cannot be imaged. The image communication system according to any one of claims 1 to 3,
The image communication system according to claim 2, wherein said second control means causes said second display means to display a polygonal figure as a test pattern. The image communication system according to any one of claims 1 to 4,
When displaying the target image at the appropriate display position, the second control means may determine that the entire area of the target image cannot be displayed within the display range of the second display means. It is determined whether or not the display position can be corrected, and when the proper display position can be corrected, the proper display position is corrected and a target image is displayed at the corrected proper display position. Image communication system. The image communication system according to claim 5,
The image communication system, wherein the second control means displays the test pattern at another predetermined display position within the display range of the second display means when the correct display position cannot be corrected. . The image communication system according to any one of claims 1 to 6,
The image communication system, wherein the second control means displays a two-dimensional code on the second display means as a target image. The image communication system according to claim 7,
The first control means decodes the two-dimensional code imaged by the first imaging means to generate decoded data, and stores the generated decoded data in the first storage means, or generates the decoded data. An image communication system for outputting decoded data from a first output unit. The image communication system according to any one of claims 1 to 8,
An image communication system according to claim 1, wherein said first control means displays a two-dimensional code on said first display means. The image communication system according to claim 9,
The second control means decodes the two-dimensional code imaged by the second imaging means to generate decoded data, and stores the generated decoded data in the second storage means, or generates the decoded data. An image communication system for outputting decrypted data from a second output unit. The image communication system according to any one of claims 1 to 10,
The image communication system according to claim 2, wherein said second control means causes an image taken by said second imaging means to be displayed on a second separate display means. The image communication system according to any one of claims 1 to 11,
A detection unit that detects whether the portable terminal is located at a predetermined reading position,
The second control means, when the detection means detects that the portable terminal is located at a predetermined reading position, displays a test pattern within a display range of the second display means. An operation of displaying the image at the display position, an operation of causing the second image pickup means to image the first display means on which the test pattern is displayed, and an operation of causing the image picked up by the second image pickup means to be the second image. An image communication system for starting an operation to be displayed on the display means.

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