WO2024062524A1 - Information transmission system, transmission device, reception device, information transmission method, and program - Google Patents

Information transmission system, transmission device, reception device, information transmission method, and program Download PDF

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Publication number
WO2024062524A1
WO2024062524A1 PCT/JP2022/034985 JP2022034985W WO2024062524A1 WO 2024062524 A1 WO2024062524 A1 WO 2024062524A1 JP 2022034985 W JP2022034985 W JP 2022034985W WO 2024062524 A1 WO2024062524 A1 WO 2024062524A1
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Prior art keywords
information
additional information
transmission
processing unit
receiving device
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PCT/JP2022/034985
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French (fr)
Japanese (ja)
Inventor
秀明 田中
将志 田所
美沙 深井
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日本電信電話株式会社
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Priority to PCT/JP2022/034985 priority Critical patent/WO2024062524A1/en
Publication of WO2024062524A1 publication Critical patent/WO2024062524A1/en

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  • One aspect of the present invention relates to an information transmission system that transmits information data from a transmitting side to a receiving side using a two-dimensional code, and a transmitting device, a receiving device, an information transmitting method, and a program used in this system.
  • Two-dimensional codes are used, for example, to store high-density information data, display it on paper, and allow viewers to view the information data by reading this two-dimensional code with a device equipped with a camera. be done.
  • the two-dimensional code is also used for the purpose of adding link information such as a URL (Uniform Resource Locator) to content displayed on the display of a terminal.
  • URL Uniform Resource Locator
  • the device reading the 2D code does not have a network access function, or if it has the function but is in an environment where it cannot access the network, communication will be one-way from the sending device to the receiving device, and it will be necessary to store and display the viewing information itself in the 2D code, rather than link information. In such cases, the size of the 2D code will increase, and the 2D code representing the additional information will overwhelm the display of the main information, such as the content, resulting in reduced visibility of the main information.
  • Non-Patent Document 1 A technology has been proposed that enables transmission and display of additional information (see, for example, Non-Patent Document 1).
  • Non-Patent Document 1 since the content is displayed as a moving image together with the two-dimensional code, flickering occurs in the display of the content, making it difficult for viewers to visually recognize the content and making it difficult for them to concentrate on viewing. It may disappear. Further, since the additional information is divided into a plurality of two-dimensional codes and transmitted in chronological order, if the additional information has a large volume and the number of two-dimensional codes increases, it will take time to transmit and display the additional information.
  • This invention was made in view of the above-mentioned circumstances, and aims to provide a technology that makes it possible to transmit a large amount of additional information without impairing the visibility of the main information, and also makes it possible to shorten the transmission time. be.
  • one aspect of an information transmission system or an information transmission method provides that when transmitting main information and additional information related to the main information from a transmitting device to a receiving device, the transmitting device transmitting the additional information all at once to the receiving device, generating transmission summary information regarding the additional information based on the additional information, and transmitting the main information to the receiving device corresponding to the additional information that has already been transmitted. It is transmitted to the receiving device together with the transmission summary information.
  • the receiving device receives and stores the additional information transmitted from the transmitting device, generates reception summary information based on the received additional information, and generates the generated reception summary information. It is stored in the storage unit in association with the original additional information.
  • the main information and the transmission summary information transmitted from the transmitting device are received, and the additional information associated with the reception summary information that is the same as the received transmission summary information is read out from the storage unit.
  • the additional information is output.
  • the transmission summary information which has a smaller data volume than the additional information, is added to the main information and transmitted from the transmitting device to the receiving device, so that the main information is transmitted at the receiving device.
  • the additional information is transmitted separately from the main information in a batch, flickering may occur in the display of the main information on the receiving device compared to when the additional information is added to the main information and transmitted as a moving image. Inconveniences can also be prevented, thereby also preventing a decrease in visibility.
  • the additional information is transmitted all at once, the time required for transmitting the additional information can also be shortened, thereby making it possible to suppress an increase in network traffic.
  • FIG. 1 is a diagram showing an example of the configuration of an information transmission system according to an embodiment of the present invention.
  • FIG. 2 is a block diagram showing an example of the hardware configuration of a transmitting device used in the information transmission system shown in FIG.
  • FIG. 3 is a block diagram showing an example of the software configuration of a transmitting device used in the information transmission system shown in FIG.
  • FIG. 4 is a block diagram showing an example of the hardware configuration of a receiving device used in the information transmission system shown in FIG.
  • FIG. 5 is a block diagram showing an example of the software configuration of a receiving device used in the information transmission system shown in FIG.
  • FIG. 6A is a flowchart illustrating an example of the processing procedure and processing contents in the additional information transmission phase executed by the control unit of the transmission device illustrated in FIG. FIG.
  • FIG. 6B is a flowchart illustrating an example of the processing procedure and processing contents in the content display/transmission phase executed by the control unit of the transmitting device shown in FIG. 3.
  • FIG. 7A is a flowchart illustrating an example of the processing procedure and processing contents in the additional information receiving phase executed by the control unit of the receiving device shown in FIG.
  • FIG. 7B is a flowchart illustrating an example of the processing procedure and processing details in the content display/transmission phase executed by the control unit of the receiving device shown in FIG.
  • FIG. 8 is a diagram for explaining an example of an information transmission operation by the transmitting device shown in FIG. 3 and the receiving device shown in FIG. 5.
  • FIG. 1 is a diagram showing an example of the configuration of an information transmission system according to an embodiment of the present invention.
  • the information transmission system of one embodiment transmits content that is main information and additional information related to this content from a transmitting device TX used by a sender to a receiving device RX used by a receiver via a network NW. It made it possible.
  • the network NW includes, for example, a wide area network centered on the Internet, and an access network for accessing this wide area network.
  • the access network for example, a wired or wireless public data communication network, a wired or wireless LAN (Local Area Network), or a CATV (Cable Television) network is used.
  • the network NW may include a broadcast transmission medium using terrestrial waves or satellite waves.
  • the transmitting device TX includes, for example, a personal computer. Note that, in addition to a personal computer, a server computer or the like located on a LAN, the Web, or a cloud may be used as the transmitter TX.
  • FIGS 2 and 3 are block diagrams showing an example of the hardware configuration and software configuration of the transmitting device TX, respectively.
  • the transmitting device TX is equipped with a control section 1 using a hardware processor such as a central processing unit (CPU), and is connected to a program storage section 2 and a data storage section via a bus 6. 3, an input/output interface section 4 and a communication interface section 5 are connected to each other. Note that the interface will be abbreviated as I/F hereinafter.
  • a hardware processor such as a central processing unit (CPU)
  • CPU central processing unit
  • I/F communication interface
  • An input device 7 using a keyboard, a mouse, etc., and a display device 8 using a liquid crystal display etc. are connected to the input/output I/F section 4.
  • the input/output I/F unit 4 has a function of taking in operation information input through the input device 7 and a function of outputting display information to the display device 8 for display.
  • a camera, an audio device, an external storage device, etc. may also be connected to the input/output I/F section 4. In this case, the input/output I/F unit 4 can acquire content material information and additional information from these external devices.
  • the communication I/F unit 5 transmits the content and its additional information to the receiving device RX according to a communication protocol defined by the network NW.
  • the communication I/F section 5 is also used when acquiring content and its additional information from other terminals or information sites on the Web or cloud.
  • the program storage unit 2 is, for example, a combination of a non-volatile memory such as an SSD (Solid State Drive) that can be written to and read from at any time as a storage medium, and a non-volatile memory such as a ROM (Read Only Memory).
  • a non-volatile memory such as an SSD (Solid State Drive) that can be written to and read from at any time as a storage medium
  • a non-volatile memory such as a ROM (Read Only Memory).
  • middleware such as (Operating System)
  • application programs necessary to execute each control process according to one embodiment are stored. Note that hereinafter, the OS and each application program will be collectively referred to as a program.
  • the data storage unit 3 is a combination of a nonvolatile memory such as an SSD that can be written to and read at any time, and a volatile memory such as a RAM (Random Access Memory). , an additional information storage section 32, and a transmission hash value storage section 33.
  • the content storage unit 31 stores content to be transmitted.
  • the additional information storage unit 32 stores additional information related to the content in association with identification information of the content.
  • the transmission hash value storage unit 33 is used to store a transmission hash value representing a summary of the additional information in association with the additional information.
  • the control unit 1 includes a content editing processing unit 11, an additional information editing processing unit 12, an additional information transmission data generation processing unit 13, and an additional information transmission data generation processing unit 13 as processing functions necessary for implementing one embodiment.
  • Dimensional code generation processing unit 14, additional information transmission two-dimensional code display/transmission processing unit 15, summary display two-dimensional code generation processing unit 16, content transmission information generation processing unit 17, content transmission information display/transmission A processing section 18 is provided.
  • These processing units 11 to 18 are all realized by causing the hardware processor of the control unit 1 to execute an application program stored in the program storage unit 2.
  • each of the processing units 11 to 18 may be realized using hardware such as LSI (Large Scale Integration) or ASIC (Application Specific Integrated Circuit).
  • the content editing processing unit 11 edits content based on text data, image data, audio data, etc. acquired from an external device via the input/output I/F unit 4, and stores the edited content in the content storage unit 31.
  • text data, image data, audio data, etc. acquired from an external device via the input/output I/F unit 4, and stores the edited content in the content storage unit 31.
  • the additional information editing processing unit 12 edits additional information related to the content based on text data, image data, audio data, etc. acquired from an external device via the input/output I/F unit 4, for example.
  • the additional information is stored in the additional information storage unit 32 in association with the identification information of the corresponding content.
  • the additional information transmission data generation processing unit 13 performs a process of calculating a transmission hash value for each first data length for the additional information stored in the additional information storage unit 32, and a process of calculating each division having the first data length.
  • the additional information is combined with bit information representing the data length added thereto, and processing is performed to generate additional information transmission data.
  • the first data length is set according to the size of a two-dimensional code representing a summary of additional information (two-dimensional code for summary display) that is added when displaying the content. Note that an example of the processing of the additional information transmission data generation processing unit 13 will be described in detail in the operation example.
  • the additional information transmission two-dimensional code generation processing unit 14 divides the additional information transmission data generated by the additional information transmission data generation processing unit 13 into a plurality of pieces of data for each second data length, and A two-dimensional code for transmitting additional information is generated for each of the plurality of pieces of data.
  • the second data length is set according to the size allowed by the two-dimensional code for transmitting additional information.
  • the additional information transmission two-dimensional code display/transmission processing unit 15 displays the plurality of additional information transmission two-dimensional codes generated by the additional information transmission two-dimensional code generation processing unit 14 on the display device 8. , the displayed two-dimensional codes for transmitting the additional information are collectively transmitted from the communication I/F unit 5 to the receiving device RX.
  • the summary display two-dimensional code generation processing unit 16 generates a summary display two-dimensional code to be added to the content, based on each transmission hash value generated by the additional information transmission data generation processing unit 13. A two-dimensional code for summary display is generated for each.
  • the content transmission information generation processing unit 17 reads the content to be transmitted from the content storage unit 31, and generates content transmission information by adding the two-dimensional code for summary display generated by the two-dimensional code generation processing unit 16 to the read content.
  • the content transmission information display/transmission processing unit 18 displays the content transmission information generated by the content transmission information generation processing unit 17 on the display device 8 via the input/output I/F unit 4, and displays the displayed content.
  • the transmission information is transmitted from the communication I/F unit 5 to the receiving device RX.
  • the receiving device RX is configured by, for example, a smartphone. Note that as the receiving device RX, a tablet terminal, a personal computer, or the like may be used in addition to a smartphone.
  • 4 and 5 are block diagrams showing an example of the hardware configuration and software configuration of the receiving device RX, respectively.
  • the receiver RX includes a control section 10 using a hardware processor such as a CPU, and has a program storage section 20 and a data storage section 30 connected to the control section 10 via a bus 60.
  • the storage unit is connected to an input/output I/F section 40 and a communication I/F section 50, respectively.
  • an input device 70 using a pressure-sensitive or capacitive touch-type input sheet is placed over a display screen of a display device 80 using, for example, a liquid crystal or an organic EL.
  • UI device is connected.
  • the input/output I/F unit 40 has a function of taking in operation information input through the input device 70 and outputting display information to the display device 80 for display. Note that other devices such as a camera may be connected to the input/output I/F section 40.
  • the communication I/F unit 50 receives the two-dimensional code for transmitting additional information and content transmission information transmitted via the network NW from the transmitting device TX in accordance with the communication protocol defined by the network NW.
  • the program storage unit 20 uses, for example, a non-volatile memory such as an SSD as a storage medium that can be written to and read from at any time, and stores application programs necessary to execute each control process according to one embodiment, in addition to middleware such as an OS.
  • middleware such as an OS.
  • the OS and each application program will be collectively referred to as the program.
  • the data storage unit 30 is a combination of a nonvolatile memory such as an SSD that can be written to and read at any time, and a volatile memory such as a RAM.
  • a table storage unit 302 is provided.
  • the additional information storage unit 301 stores additional information reproduced by decoding the two-dimensional code for transmitting additional information transmitted from the transmitter TX.
  • the reception hash table storage unit 302 stores the reception hash value calculated from the reproduced additional information in association with the additional information that is the source of the calculation.
  • the control unit 10 includes a two-dimensional code reception processing unit 101 for transmitting additional information, a two-dimensional code decoding processing unit 102 for transmitting additional information, and a reception hash table generation process as necessary processing functions to implement one embodiment. 103 , a content transmission information reception/display processing section 104 , a summary display two-dimensional code decoding processing section 105 , an additional information search processing section 106 , and an additional information display processing section 107 . These processing units 101 to 107 are all realized by causing the hardware processor of the control unit 10 to execute an application program stored in the program storage unit 20.
  • processing units 101 to 107 described above may be realized using hardware such as LSI or ASIC.
  • the additional information transmission two-dimensional code reception processing unit 101 receives the additional information transmission two-dimensional code transmitted from the transmitter TX via the communication I/F unit 50.
  • the additional information transmission two-dimensional code decoding processing unit 102 decodes the additional information transmission two-dimensional code received by the additional information transmission two-dimensional code reception processing unit 101, and divides the divided additional information of the second data length. Reproduce. Then, the reproduced divided additional information is combined and stored in the additional information storage section 301.
  • the reception hash table generation processing unit 103 reads the additional information from the additional information storage unit 301 and calculates a reception hash value for each first data length of the additional information. Then, the reception hash table generation processing unit 103 stores the calculated reception hash value in the reception hash table storage unit 302 in a state where it is associated with the division additional information from which the calculation is made.
  • the content transmission information reception/display processing unit 104 transmits the content transmission information transmitted from the transmitting device TX, that is, information in which a two-dimensional summary display code representing a summary of additional information is added to the content, via the communication I/F unit 50. and displays the received content transmission information on the display device 80 via the input/output I/F section 40.
  • the summary display two-dimensional code decoding processing unit 105 decodes each of the summary display two-dimensional codes contained in the displayed content transmission information and reproduces the transmission hash value.
  • the additional information search processing unit 106 searches the reception hash table storage unit 302 to identify a reception hash value that is the same as the reproduced transmission hash value, and stores the reception hash value in association with the identified reception hash value. Read the division additional information.
  • the additional information display processing unit 107 outputs the divided additional information read out by the additional information search processing unit 106 to the display device 80 via the input/output I/F unit 40 for display.
  • the operation of the information transmission system is divided into an “additional information transmission phase” in which additional information is transmitted all at once, and a “content display/transmission phase” in which the content is then transmitted with a summary of the additional information added. be exposed.
  • FIGS. 6A and 7A are flowcharts showing an example of the processing procedure and processing contents in the "additional information transmission phase" executed by the control unit 1 of the transmitting device TX and the control unit 10 of the receiving device RX, respectively. It is.
  • the control unit 1 of the transmitter TX first generates additional information stored in the additional information storage unit 32 in step S11.
  • the additional information may be divided into M pieces of data in advance.
  • step S12 the additional information transmission data generation processing unit 13 calculates a transmission hash value for the read m-th divided data based on the hash function. Then, in step S13, the additional information transmission data generation processing unit 13 stores the calculated transmission hash value and the divided data from which it was calculated in the transmission hash value storage unit 33 in association with each other.
  • step S14 the additional information transmission data generation processing unit 13 adds a bit value representing the data length to the head position of the m-th divided data, and then converts this m-th divided data into the previous one. Join to the end of the m-1th divided data.
  • step S10 determines whether the hash value calculation and data merging process have been completed for all M pieces of divided data. . If unprocessed divided data still remains, the above-mentioned series of processes from step S11 to step S14 are repeatedly executed, and when the processing for all M pieces of divided data is completed, additional information transmission data generation processing is performed. end.
  • step S15 the control unit 1 of the transmitter TX generates a two-dimensional code for additional information transmission in step S15.
  • the number of divisions N of the combined additional information is calculated based on the second data length set according to the size.
  • step S16 the additional information transmission two-dimensional code generation processing unit 14 divides the combined additional information into the calculated division number N.
  • the control unit 1 of the transmitter TX then inputs the generated n-th additional information transmission two-dimensional code in step S20 under the control of the additional information transmission two-dimensional code display/transmission processing unit 15. It is output from the output I/F section 4 to the display device 8 and displayed.
  • the additional information transmission two-dimensional code display/transmission processing unit 15 waits for a preset time T (seconds) in step S21 after generating the n-th divided additional information two-dimensional code. Then, in step S22, it is monitored whether the sender has pressed the transmission completion button BU and whether a certain period of time has elapsed.
  • step S17 it is determined in step S17 whether or not the two-dimensional encoding process has been completed for all the N pieces of divided additional information. do. If unprocessed divisional additional information remains, the above series of processes in steps S18 to S22 are repeatedly executed.
  • the additional information transmission two-dimensional code display/transmission processing unit 15 monitors the pressing of the transmission completion button BU and the elapse of a certain period of time in step S22, and monitors whether the transmission completion button BU is pressed or a certain period of time has elapsed. Then, in step S23, the N generated two-dimensional codes for transmitting additional information are collectively transmitted from the communication I/F unit 5 to the receiving device RX.
  • W1 in the upper left of FIG. 8 shows an example of the operation of the additional information transmission phase in the transmitter TX, and shows a state in which a plurality of two-dimensional codes for transmitting additional information are displayed.
  • step S31 the N two-dimensional codes for transmitting additional information are received via the communication I/F unit 50 and temporarily stored in a buffer area within the data storage unit 30.
  • the control unit 10 of the receiving device RX sequentially reads the received N pieces of additional information transmission two-dimensional codes starting from the n-th one in step S33. , the read two-dimensional code for transmitting additional information is decoded to reproduce the n-th divided additional information. Then, in step S35, the additional information transmission two-dimensional code decoding processing unit 102 combines the n-th divided additional information with the (n-1)th divided additional information, and stores the combined additional information in the additional information storage unit 301. to be memorized.
  • the additional information transmission two-dimensional code decoding processing unit 102 determines whether the reproduction process of all N pieces of divided additional information has been completed in step S32. . Then, if an unprocessed additional information transmission two-dimensional code remains, the above processing in steps S33 to S35 is repeatedly executed, and when the reproduction processing of all N pieces of divided additional information is completed, a reception hash table is generated. Move to processing.
  • reception hash table generation processing unit 103 the control unit 10 of the reception device RX first generates additional information stored in the additional information storage unit 301 in step S37. Divide into M pieces of data for each first data length. This additional information division process is performed by cutting out each piece of divided data according to the bit value representing the data length of each piece of divided data included in the additional information.
  • step S38 the reception hash table generation processing unit 103 selects and reads the m-th divided data of the additional information in order, and in step S39, the transmission device TX selects and reads the m-th divided data that has been read.
  • the received hash value is calculated using the same hash function as the hash function used to calculate the received hash value.
  • the reception hash table generation processing unit 103 associates the generated reception hash value with the m-th divided data from which it was calculated, and stores this in the reception hash table storage unit 302.
  • Area W3 in FIG. 8 shows an example of a reception hash table generated in the above manner.
  • the reception hash table generation processing unit 103 When the reception hash table generation processing unit 103 finishes processing the m-th divided data, it determines in step S36 whether or not the processing has finished for all M pieces of divided data. As a result of this determination, if unprocessed divided data remains, the processing is repeated in steps S37 to S40, and on the other hand, if the processing for all M pieces of divided data is completed, the reception hash table generation process is ended. .
  • FIGS. 6B and 7B show an example of the processing procedure and processing details in the "content display/transmission phase" executed by the control unit 1 of the transmitting device TX and the control unit 10 of the receiving device RX, respectively.
  • FIG. 6B and 7B show an example of the processing procedure and processing details in the "content display/transmission phase" executed by the control unit 1 of the transmitting device TX and the control unit 10 of the receiving device RX, respectively.
  • the control unit 1 of the transmitting device TX first starts the two-dimensional code generation processing unit 16 for summary display with the content to be transmitted displayed on the display device 8 in step S23. Under the control, in step S25, the m-th transmission hash value is read from the transmission hash value storage section 33. Then, the two-dimensional code is generated based on the read m-th transmission hash value. That is, a two-dimensional code representing a summary of additional information is generated.
  • step S26 the control unit 1 of the transmission device TX, under the control of the content transmission information generation processing unit 17, generates content transmission information by adding the two-dimensional code for summary transmission generated by the two-dimensional code generation processing unit 16 for summary display to the content read from the content storage unit 31.
  • the control unit 1 of the transmitting device TX outputs the generated content transmission information from the input/output I/F unit 4 to the display device 8 and displays it under the control of the content transmission information display/transmission processing unit 18.
  • W2 in FIG. 8 shows an example of the display result of the content transmission information, that is, information obtained by adding a two-dimensional code representing a summary of additional information to the content.
  • control unit 1 of the transmitting device TX directs the displayed content transmission information from the communication I/F unit 5 to the receiving device RX in step S27. Send.
  • step S23 the control unit 1 of the transmitting device TX determines whether processing for all M transmission hash values has been completed. As a result of this determination, if unprocessed transmission hash values remain, the above-mentioned processing in steps S25 to S27 is repeatedly executed. On the other hand, when the processing for all M transmission hash values is completed, the series of transmission processing of content transmission information in the content display/transmission phase is completed, and the process returns to the standby state.
  • step S41 Reproducing/Displaying Additional Information
  • the control unit 10 of the receiving device RX under the control of the content transmission information reception/display processing unit 104, performs a process in step S41.
  • the content transmission information is received via the communication I/F section 50.
  • the content transmission information reception/display processing unit 104 outputs the received content transmission information from the input/output I/F unit 40 to the display device 80 and displays it.
  • step S43 under the control of the summary display two-dimensional code decoding processing unit 105, the control unit 10 of the receiving device RX selects the m-th summary display code from the M summary display two-dimensional codes displayed. Select 2D code. Then, the summary display two-dimensional code decoding processing unit 105 decodes the selected m-th summary display two-dimensional code and reproduces the transmission hash value.
  • the control unit 10 of the receiving device RX first searches the reception hash table storage unit 302 for a reception hash value that is the same as the reproduced transmission hash value in step S45. . Then, in step S46, the additional information search processing unit 106 reads out the divided data of the additional information associated with the received hash value from the reception hash table storage unit 302.
  • the control unit 10 of the receiving device RX then outputs the read divided data of the additional information from the input/output I/F unit 40 to the display device 80 under the control of the additional information display processing unit 107 in step S46, and displays it in place of the two-dimensional code for summary transmission that is currently being displayed.
  • the control unit 10 of the receiving device RX determines an operation to end the display of additional information in step S47. As a result of this determination, if the display termination operation is not performed, the process returns to step S42 and it is determined whether or not the reproduction process of the divided data for all M two-dimensional codes for summary transmission has been completed.
  • the control unit 10 of the receiving device RX repeatedly executes the above series of processes in steps S43 to S47.
  • the display device 80 sequentially displays the divided data of additional information corresponding to the M two-dimensional codes for summary display.
  • the control unit 10 of the receiving device RX ends displaying the additional information and returns to the standby state.
  • the transmitting device TX divides the additional information to be transmitted into N pieces, converts each into a two-dimensional code for transmitting additional information, and transmits them all at once. do.
  • the transmitting device TX divides the additional information into M pieces, converts each into a transmission hash value, converts them into two-dimensional codes, adds them to the content, and transmits them.
  • the receiving device first in the additional information transmission phase, the N two-dimensional codes for transmitting the additional information are received, and each of the received N two-dimensional codes for transmitting the additional information is decoded and added. Additional information is reproduced by reproducing divided data of information and combining them. Then, a reception hash value is generated for each predetermined data length for the reproduced additional information, and a reception hash table is generated by associating each generated reception hash value with the additional information of the generation source.
  • the received two-dimensional code for summary display is converted into a transmission hash value, and then this transmission hash value is converted into a transmission hash value.
  • the additional information associated with the received hash value that is the same as the received hash value is read out from the received hash table and displayed.
  • a two-dimensional code for summary display which has a small data capacity, is added to the content and transmitted from the transmitting device TX to the receiving device RX, thereby reducing the problem that the display area of the content is compressed by the two-dimensional code for summary display, reducing visibility, when the content is displayed on the receiving device RX.
  • the additional information is transmitted separately from the content in a batch, compared to the case where the additional information is added to the content and transmitted as a moving image, there are also problems such as flickering in the display of the content on the receiving device RX. It can be prevented. Furthermore, since the additional information is transmitted all at once, the time required for transmitting the additional information can also be shortened, thereby making it possible to suppress an increase in network traffic.
  • the receiving device RX waits for the receiver to input a playback request while displaying the content and the two-dimensional code for summary transmission, and when the playback request is input, decodes the two-dimensional code for summary display.
  • the additional information may also be reproduced and displayed.
  • this invention is not limited to the above-described embodiment as it is, and in the implementation stage, the components can be modified and embodied without departing from the gist of the invention.
  • various inventions can be formed by appropriately combining multiple components disclosed in the above-described embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, components from different embodiments may be appropriately combined.
  • the transmitting device TX converts the confidential information into a two-dimensional code for summary transmission, and then adds it to main information such as content or transmits it alone, and the receiving device RX receives the main information and the two-dimensional code for summary transmission. and display it. Then, in this state, the two-dimensional code for summary transmission displayed on the receiving device RX may be read, decoded, and displayed by a terminal such as smart glasses. In this way, only a specific user can reproduce and confirm the confidential information.
  • TX Transmitting device
  • RX Receiving device NW... Network 1, 10... Control section 2, 20... Program storage section 3, 30... Data storage section 4, 40... Input/output I/F section 5, 50... Communication I/F section 6, 60... Bus 7, 70... Input device 8, 80... Display device 11... Content editing processing unit 12... Additional information editing processing unit 13... Data generation processing unit for additional information transmission 14... Two-dimensional code generation for additional information transmission Processing section 15... Two-dimensional code display/transmission processing section for additional information transmission 16... Two-dimensional code generation processing section for summary display 17... Content transmission information generation processing section 18... Content transmission information display/transmission processing section 31...

Abstract

In one embodiment of this invention, when a transmission device transmits main information and additional information associated with the main information to a reception device, the transmission device first transmits the additional information in bulk to the reception device, generates transmission summary information relating to the additional information on the basis of the additional information, and transmits the main information to the reception device together with the transmission summary information associated with the transmitted additional information. Meanwhile, the reception device receives and stores the additional information transmitted from the transmission device, generates reception summary information on the basis of the received additional information, and stores the generated reception summary information into a storage unit in association with the additional information from which the reception summary information has been generated. The reception device then receives the main information and transmission summary information transmitted from the transmission device, reads, from the storage unit, the additional information associated with the same reception summary information as the received transmission summary information, and displays the read additional information on a display unit instead of the transmission summary information.

Description

情報伝送システム、送信装置、受信装置、情報伝送方法およびプログラムInformation transmission system, transmitting device, receiving device, information transmitting method and program
　この発明の一態様は、送信側から受信側へ二次元コードを用いて情報データを伝送する情報伝送システムと、このシステムで使用される送信装置、受信装置、情報伝送方法およびプログラムに関する。 One aspect of the present invention relates to an information transmission system that transmits information data from a transmitting side to a receiving side using a two-dimensional code, and a transmitting device, a receiving device, an information transmitting method, and a program used in this system.
　二次元コードは、例えば、高密度の情報データを格納して紙面に表示し、この二次元コードをカメラを備えるデバイスにより読み取ることで、閲覧者が上記情報データを閲覧できるようにする目的で利用される。また二次元コードは、端末のディスプレイに表示されるコンテンツに対しＵＲＬ（Uniform Resource Locator）等のリンク情報を付加する目的でも利用される。 Two-dimensional codes are used, for example, to store high-density information data, display it on paper, and allow viewers to view the information data by reading this two-dimensional code with a device equipped with a camera. be done. The two-dimensional code is also used for the purpose of adding link information such as a URL (Uniform Resource Locator) to content displayed on the display of a terminal.
　しかし、二次元コードを読み取るデバイスがネットワークアクセス機能を持たない場合や、アクセス機能を持っていてもネットワークにアクセスできない環境下にある場合には、送信側の装置から受信側の装置への片方向通信となるため、二次元コードにはリンク情報ではなく、閲覧情報そのものを格納して表示させることが必要になる。このような場合、二次元コードのサイズが大型化するため、付加情報を表す二次元コードがコンテンツなどの主情報の表示を圧迫して主情報の視認性の低下を招く。 However, if the device reading the 2D code does not have a network access function, or if it has the function but is in an environment where it cannot access the network, communication will be one-way from the sending device to the receiving device, and it will be necessary to store and display the viewing information itself in the 2D code, rather than link information. In such cases, the size of the 2D code will increase, and the 2D code representing the additional information will overwhelm the display of the main information, such as the content, resulting in reduced visibility of the main information.
　そこで、付加情報を複数の二次元コードに分散して格納し、これらの二次元コードを動画像として時系列上で伝送し表示することで、二次元コードのサイズを小型化した上で大容量の付加情報の伝送および表示を可能にする技術が提案されている（例えば非特許文献１を参照）。 Therefore, by storing additional information in a distributed manner in multiple 2D codes and transmitting and displaying these 2D codes in chronological order as moving images, we can reduce the size of the 2D code and increase the capacity. A technology has been proposed that enables transmission and display of additional information (see, for example, Non-Patent Document 1).
　ところが、非特許文献１に記載された技術では、二次元コードと共にコンテンツが動画像として表示されるためコンテンツの表示にちらつきが発生し、閲覧者にとってはコンテンツを視認し難くなって閲覧に集中できなくなる場合がある。また、付加情報が複数の二次元コードに分割されて時系列に伝送されるため、付加情報が大容量で二次元コードの数が多くなると、付加情報の伝送およびその表示に時間が掛かる。 However, in the technology described in Non-Patent Document 1, since the content is displayed as a moving image together with the two-dimensional code, flickering occurs in the display of the content, making it difficult for viewers to visually recognize the content and making it difficult for them to concentrate on viewing. It may disappear. Further, since the additional information is divided into a plurality of two-dimensional codes and transmitted in chronological order, if the additional information has a large volume and the number of two-dimensional codes increases, it will take time to transmit and display the additional information.
　この発明は上記事情に着目してなされたもので、大容量の付加情報を主情報の視認性を損なうことなく伝送可能とし、かつ伝送時間の短縮を可能にした技術を提供しようとするものである。 This invention was made in view of the above-mentioned circumstances, and aims to provide a technology that makes it possible to transmit a large amount of additional information without impairing the visibility of the main information, and also makes it possible to shorten the transmission time. be.
　上記課題を解決するために、この発明に係る情報伝送システムまたは情報伝送方法の一態様は、送信装置から受信装置へ主情報および当該主情報に関連する付加情報を伝送する際に、前記送信装置において、前記付加情報を一括して前記受信装置へ送信し、前記付加情報をもとに当該付加情報に係る送信要約情報を生成して、前記主情報を送信済の前記付加情報に対応する前記送信要約情報と共に前記受信装置へ送信する。 In order to solve the above problems, one aspect of an information transmission system or an information transmission method according to the present invention provides that when transmitting main information and additional information related to the main information from a transmitting device to a receiving device, the transmitting device transmitting the additional information all at once to the receiving device, generating transmission summary information regarding the additional information based on the additional information, and transmitting the main information to the receiving device corresponding to the additional information that has already been transmitted. It is transmitted to the receiving device together with the transmission summary information.
　一方、受信装置においては、前記送信装置から送信された前記付加情報を受信し保存すると共に、受信された前記付加情報をもとに受信要約情報を生成して、生成した前記受信要約情報を生成元の前記付加情報と対応付けて記憶部に保存する。そして、前記送信装置から送信された前記主情報および前記送信要約情報を受信し、受信した前記送信要約情報と同一の前記受信要約情報に対応付けられた前記付加情報を前記記憶部から読み出し、読み出した前記付加情報を出力する。 Meanwhile, the receiving device receives and stores the additional information transmitted from the transmitting device, generates reception summary information based on the received additional information, and generates the generated reception summary information. It is stored in the storage unit in association with the original additional information. The main information and the transmission summary information transmitted from the transmitting device are received, and the additional information associated with the reception summary information that is the same as the received transmission summary information is read out from the storage unit. The additional information is output.
　この発明の一態様によれば、送信装置から受信装置へは、付加情報よりもデータ容量の小さい送信要約情報が主情報に付加されて伝送されることになり、これにより受信装置において主情報を表示する際に、主情報の表示領域が送信要約情報により圧迫されて視認性が劣化する不具合を防止することができる。また、付加情報は主情報とは別に単独で一括伝送されるため、付加情報を主情報に付加した状態で動画像として伝送する場合に比べ、受信装置において主情報の表示にちらつき等が発生する不具合も防止し、これによっても視認性の低下を防止することができる。さらに、付加情報は一括伝送されるので、付加情報の伝送に要する時間も短縮することが可能となり、これによりネットワークのトラフィックの増加を抑制することが可能となる。 According to one aspect of the present invention, the transmission summary information, which has a smaller data volume than the additional information, is added to the main information and transmitted from the transmitting device to the receiving device, so that the main information is transmitted at the receiving device. When displaying, it is possible to prevent a problem in which the display area of the main information is compressed by the transmission summary information and visibility deteriorates. Additionally, since the additional information is transmitted separately from the main information in a batch, flickering may occur in the display of the main information on the receiving device compared to when the additional information is added to the main information and transmitted as a moving image. Inconveniences can also be prevented, thereby also preventing a decrease in visibility. Furthermore, since the additional information is transmitted all at once, the time required for transmitting the additional information can also be shortened, thereby making it possible to suppress an increase in network traffic.
　すなわちこの発明の一態様によれば、大容量の付加情報を主情報の視認性を損なうことなく伝送可能とし、かつ伝送時間の短縮を可能にする技術を提供することができる。 In other words, according to one aspect of the present invention, it is possible to provide a technology that allows a large amount of additional information to be transmitted without impairing the visibility of the main information, and also enables shortening of the transmission time.
図１は、この発明の一実施形態に係る情報伝送システムの構成の一例を示す図である。FIG. 1 is a diagram showing an example of the configuration of an information transmission system according to an embodiment of the present invention. 図２は、図１に示した情報伝送システムで使用される送信装置のハードウェア構成の一例を示すブロック図である。FIG. 2 is a block diagram showing an example of the hardware configuration of a transmitting device used in the information transmission system shown in FIG. 図３は、図１に示した情報伝送システムで使用される送信装置のソフトウェア構成の一例を示すブロック図である。FIG. 3 is a block diagram showing an example of the software configuration of a transmitting device used in the information transmission system shown in FIG. 図４は、図１に示した情報伝送システムで使用される受信装置のハードウェア構成の一例を示すブロック図である。FIG. 4 is a block diagram showing an example of the hardware configuration of a receiving device used in the information transmission system shown in FIG. 図５は、図１に示した情報伝送システムで使用される受信装置のソフトウェア構成の一例を示すブロック図である。FIG. 5 is a block diagram showing an example of the software configuration of a receiving device used in the information transmission system shown in FIG. 図６Ａは、図３に示した送信装置の制御部が実行する付加情報送信フェーズにおける処理手順と処理内容の一例を示すフローチャートである。FIG. 6A is a flowchart illustrating an example of the processing procedure and processing contents in the additional information transmission phase executed by the control unit of the transmission device illustrated in FIG. 図６Ｂは、図３に示した送信装置の制御部が実行するコンテンツ表示・伝送フェーズにおける処理手順と処理内容の一例を示すフローチャートである。FIG. 6B is a flowchart illustrating an example of the processing procedure and processing contents in the content display/transmission phase executed by the control unit of the transmitting device shown in FIG. 3. 図７Ａは、図５に示した受信装置の制御部が実行する付加情報受信フェーズにおける処理手順と処理内容の一例を示すフローチャートである。FIG. 7A is a flowchart illustrating an example of the processing procedure and processing contents in the additional information receiving phase executed by the control unit of the receiving device shown in FIG. 図７Ｂは、図５に示した受信装置の制御部が実行するコンテンツ表示・伝送フェーズにおける処理手順と処理内容の一例を示すフローチャートである。FIG. 7B is a flowchart illustrating an example of the processing procedure and processing details in the content display/transmission phase executed by the control unit of the receiving device shown in FIG. 図８は、図３に示した送信装置および図５に示した受信装置による情報伝送動作の一例を説明するための図である。FIG. 8 is a diagram for explaining an example of an information transmission operation by the transmitting device shown in FIG. 3 and the receiving device shown in FIG. 5.
　以下、図面を参照してこの発明に係わる実施形態を説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　［一実施形態］
　（構成例）
　（１）システム
　図１は、この発明の一実施形態に係る情報伝送システムの構成の一例を示す図である。 [One embodiment]
(Configuration example)
(1) System FIG. 1 is a diagram showing an example of the configuration of an information transmission system according to an embodiment of the present invention.
　一実施形態の情報伝送システムは、送信者が使用する送信装置ＴＸから、受信者が使用する受信装置ＲＸへ、主情報であるコンテンツとこのコンテンツに関係する付加情報を、ネットワークＮＷを介して伝送可能にしたものである。 The information transmission system of one embodiment transmits content that is main information and additional information related to this content from a transmitting device TX used by a sender to a receiving device RX used by a receiver via a network NW. It made it possible.
　ネットワークＮＷは、例えばインターネットを中核とする広域ネットワークと、この広域ネットワークにアクセスするためのアクセスネットワークとを備える。アクセスネットワークとしては、例えば、有線または無線を使用する公衆データ通信ネットワーク、有線または無線を使用するＬＡＮ（Local Area Network）、ＣＡＴＶ（Cable Television）ネットワークが使用される。また、ネットワークＮＷには、地上波または衛星波を使用する放送伝送媒体が含まれていてもよい。 The network NW includes, for example, a wide area network centered on the Internet, and an access network for accessing this wide area network. As the access network, for example, a wired or wireless public data communication network, a wired or wireless LAN (Local Area Network), or a CATV (Cable Television) network is used. Further, the network NW may include a broadcast transmission medium using terrestrial waves or satellite waves.
　（２）送信装置ＴＸ
　送信装置ＴＸは、例えばパーソナルコンピュータからなる。なお、送信装置ＴＸとしては、パーソナルコンピュータ以外に、ＬＡＮ上、Ｗｅｂ上或いはクラウド上に配置されたサーバコンピュータ等が使用されてもよい。 (2) Transmitter TX
The transmitting device TX includes, for example, a personal computer. Note that, in addition to a personal computer, a server computer or the like located on a LAN, the Web, or a cloud may be used as the transmitter TX.
　図２および図３は、それぞれ送信装置ＴＸのハードウェア構成およびソフトウェア構成の一例を示すブロック図である。 2 and 3 are block diagrams showing an example of the hardware configuration and software configuration of the transmitting device TX, respectively.
　送信装置ＴＸは、中央処理ユニット（Central Processing Unit：ＣＰＵ）等のハードウェアプロセッサを使用した制御部１を備え、この制御部１に対し、バス６を介して、プログラム記憶部２およびデータ記憶部３を有する記憶ユニットと、入出力インタフェース部４および通信インタフェース部５とをそれぞれ接続したものとなっている。なお、以後インタフェースをＩ／Ｆと略称する。 The transmitting device TX is equipped with a control section 1 using a hardware processor such as a central processing unit (CPU), and is connected to a program storage section 2 and a data storage section via a bus 6. 3, an input/output interface section 4 and a communication interface section 5 are connected to each other. Note that the interface will be abbreviated as I/F hereinafter.
　入出力Ｉ／Ｆ部４には、キーボードおよびマウス等を用いた入力デバイス７と、液晶ディスプレイ等を用いた表示デバイス８が接続される。入出力Ｉ／Ｆ部４は、入力デバイス７において入力された操作情報を取り込む機能と、表示情報を表示デバイス８へ出力して表示させる機能とを有する。なお、入出力Ｉ／Ｆ部４には、他にカメラや音響デバイス、外部記憶デバイス等が接続されてもよい。この場合入出力Ｉ／Ｆ部４は、これらの外部デバイスからコンテンツの素材情報や付加情報を取得することができる。 An input device 7 using a keyboard, a mouse, etc., and a display device 8 using a liquid crystal display etc. are connected to the input/output I/F section 4. The input/output I/F unit 4 has a function of taking in operation information input through the input device 7 and a function of outputting display information to the display device 8 for display. Note that a camera, an audio device, an external storage device, etc. may also be connected to the input/output I/F section 4. In this case, the input/output I/F unit 4 can acquire content material information and additional information from these external devices.
　通信Ｉ／Ｆ部５は、ネットワークＮＷにより定義される通信プロトコルに従い、受信装置ＲＸに向けてコンテンツとその付加情報を送信する。また通信Ｉ／Ｆ部５は、他の端末またはＷｅｂ上またはクラウド上の情報サイトから、コンテンツおよびその付加情報を取得する場合にも使用される。 The communication I/F unit 5 transmits the content and its additional information to the receiving device RX according to a communication protocol defined by the network NW. The communication I/F section 5 is also used when acquiring content and its additional information from other terminals or information sites on the Web or cloud.
　プログラム記憶部２は、例えば、記憶媒体としてＳＳＤ（Solid State Drive）等の随時書込みおよび読出しが可能な不揮発性メモリと、ＲＯＭ（Read Only Memory）等の不揮発性メモリとを組み合わせたもので、ＯＳ（Operating System）等のミドルウェアに加えて、一実施形態に係る各制御処理を実行するために必要なアプリケーション・プログラムを格納する。なお、以後ＯＳと各アプリケーション・プログラムとをまとめてプログラムと称する。 The program storage unit 2 is, for example, a combination of a non-volatile memory such as an SSD (Solid State Drive) that can be written to and read from at any time as a storage medium, and a non-volatile memory such as a ROM (Read Only Memory). In addition to middleware such as (Operating System), application programs necessary to execute each control process according to one embodiment are stored. Note that hereinafter, the OS and each application program will be collectively referred to as a program.
　データ記憶部３は、例えば、ＳＳＤ等の随時書込みおよび読出しが可能な不揮発性メモリと、ＲＡＭ（Random Access Memory）等の揮発性メモリと組み合わせたもので、その記憶領域には、コンテンツ記憶部３１と、付加情報記憶部３２と、送信ハッシュ値記憶部３３とが設けられる。 The data storage unit 3 is a combination of a nonvolatile memory such as an SSD that can be written to and read at any time, and a volatile memory such as a RAM (Random Access Memory). , an additional information storage section 32, and a transmission hash value storage section 33.
　コンテンツ記憶部３１には、送信対象のコンテンツが記憶される。付加情報記憶部３２には、上記コンテンツに関係する付加情報が当該コンテンツの識別情報と紐付けられて記憶される。送信ハッシュ値記憶部３３は、上記付加情報の要約を表す送信ハッシュ値を当該付加情報と紐付けられた状態で記憶するために使用される。 The content storage unit 31 stores content to be transmitted. The additional information storage unit 32 stores additional information related to the content in association with identification information of the content. The transmission hash value storage unit 33 is used to store a transmission hash value representing a summary of the additional information in association with the additional information.
　制御部１は、一実施形態を実施するために必要な処理機能として、コンテンツ編集処理部１１と、付加情報編集処理部１２と、付加情報送信用データ生成処理部１３と、付加情報送信用二次元コード生成処理部１４と、付加情報送信用二次元コード表示・送信処理部１５と、要約表示用二次元コード生成処理部１６と、コンテンツ送信情報生成処理部１７と、コンテンツ送信情報表示・送信処理部１８とを備える。これらの処理部１１～１８は、何れもプログラム記憶部２に格納されたアプリケーション・プログラムを制御部１のハードウェアプロセッサに実行させることにより実現される。 The control unit 1 includes a content editing processing unit 11, an additional information editing processing unit 12, an additional information transmission data generation processing unit 13, and an additional information transmission data generation processing unit 13 as processing functions necessary for implementing one embodiment. Dimensional code generation processing unit 14, additional information transmission two-dimensional code display/transmission processing unit 15, summary display two-dimensional code generation processing unit 16, content transmission information generation processing unit 17, content transmission information display/transmission A processing section 18 is provided. These processing units 11 to 18 are all realized by causing the hardware processor of the control unit 1 to execute an application program stored in the program storage unit 2.
　なお、上記各処理部１１～１８の一部または全部は、ＬＳＩ（Large Scale Integration）やＡＳＩＣ（Application Specific Integrated Circuit）等のハードウェアを用いて実現されてもよい。 Note that a part or all of each of the processing units 11 to 18 may be realized using hardware such as LSI (Large Scale Integration) or ASIC (Application Specific Integrated Circuit).
　コンテンツ編集処理部１１は、例えば外部デバイスから入出力Ｉ／Ｆ部４を介して取得したテキストデータ、画像データおよび音声データ等をもとにコンテンツを編集し、編集したコンテンツをコンテンツ記憶部３１に記憶する。 The content editing processing unit 11 edits content based on text data, image data, audio data, etc. acquired from an external device via the input/output I/F unit 4, and stores the edited content in the content storage unit 31. Remember.
　付加情報編集処理部１２は、例えば外部デバイスから入出力Ｉ／Ｆ部４を介して取得したテキストデータ、画像データおよび音声データ等をもとに、上記コンテンツに関係する付加情報を編集し、編集した付加情報を対応するコンテンツの識別情報と紐付けて付加情報記憶部３２に記憶する。 The additional information editing processing unit 12 edits additional information related to the content based on text data, image data, audio data, etc. acquired from an external device via the input/output I/F unit 4, for example. The additional information is stored in the additional information storage unit 32 in association with the identification information of the corresponding content.
　付加情報送信用データ生成処理部１３は、上記付加情報記憶部３２に記憶された付加情報について第１のデータ長ごとに送信ハッシュ値を算出する処理と、上記第１のデータ長を有する各分割付加情報をそのデータ長を表すビット情報を付加した状態で結合し、付加情報送信用データを生成する処理とを行う。上記第１のデータ長は、コンテンツを表示する際に付加する、付加情報の要約を表わす二次元コード（要約表示用二次元コード）のサイズに応じて設定される。なお、付加情報送信用データ生成処理部１３の処理の一例は、動作例において詳しく説明する。 The additional information transmission data generation processing unit 13 performs a process of calculating a transmission hash value for each first data length for the additional information stored in the additional information storage unit 32, and a process of calculating each division having the first data length. The additional information is combined with bit information representing the data length added thereto, and processing is performed to generate additional information transmission data. The first data length is set according to the size of a two-dimensional code representing a summary of additional information (two-dimensional code for summary display) that is added when displaying the content. Note that an example of the processing of the additional information transmission data generation processing unit 13 will be described in detail in the operation example.
　付加情報送信用二次元コード生成処理部１４は、上記付加情報送信用データ生成処理部１３により生成された付加情報送信用データを、第２のデータ長ごとに複数のデータに分割し、分割された複数のデータの各々について付加情報送信用二次元コードを生成する。第２のデータ長は、上記付加情報送信用二次元コードにより許容されるサイズに応じて設定される。 The additional information transmission two-dimensional code generation processing unit 14 divides the additional information transmission data generated by the additional information transmission data generation processing unit 13 into a plurality of pieces of data for each second data length, and A two-dimensional code for transmitting additional information is generated for each of the plurality of pieces of data. The second data length is set according to the size allowed by the two-dimensional code for transmitting additional information.
　付加情報送信用二次元コード表示・送信処理部１５は、上記付加情報送信用二次元コード生成処理部１４により生成された付加情報送信用の複数の二次元コードを、表示デバイス８に表示すると共に、表示された上記付加情報送信用の各二次元コードを通信Ｉ／Ｆ部５から受信装置ＲＸに向け一括して送信する。 The additional information transmission two-dimensional code display/transmission processing unit 15 displays the plurality of additional information transmission two-dimensional codes generated by the additional information transmission two-dimensional code generation processing unit 14 on the display device 8. , the displayed two-dimensional codes for transmitting the additional information are collectively transmitted from the communication I/F unit 5 to the receiving device RX.
　要約表示用二次元コード生成処理部１６は、コンテンツに付加する要約表示用二次元コードを生成するもので、上記付加情報送信用データ生成処理部１３により生成された各送信ハッシュ値をもとにそれぞれ要約表示用二次元コードを生成する。 The summary display two-dimensional code generation processing unit 16 generates a summary display two-dimensional code to be added to the content, based on each transmission hash value generated by the additional information transmission data generation processing unit 13. A two-dimensional code for summary display is generated for each.
　コンテンツ送信情報生成処理部１７は、コンテンツ記憶部３１から送信対象のコンテンツを読み出し、読み出した上記コンテンツに、上記要約表示用二次元コード生成処理部１６により生成された要約表示用二次元コードを付加することにより、コンテンツ送信情報を生成する。 The content transmission information generation processing unit 17 reads the content to be transmitted from the content storage unit 31, and generates content transmission information by adding the two-dimensional code for summary display generated by the two-dimensional code generation processing unit 16 to the read content.
　コンテンツ送信情報表示・送信処理部１８は、上記コンテンツ送信情報生成処理部１７により生成された上記コンテンツ送信情報を入出力Ｉ／Ｆ部４を介して表示デバイス８に表示し、表示された上記コンテンツ送信情報を通信Ｉ／Ｆ部５から受信装置ＲＸへ向け送信する。 The content transmission information display/transmission processing unit 18 displays the content transmission information generated by the content transmission information generation processing unit 17 on the display device 8 via the input/output I/F unit 4, and displays the displayed content. The transmission information is transmitted from the communication I/F unit 5 to the receiving device RX.
　（３）受信装置ＲＸ
　受信装置ＲＸは、例えばスマートフォンにより構成される。なお、受信装置ＲＸとしては、スマートフォン以外にタブレット型端末やパーソナルコンピュータ等が使用されてもよい。 (3) Receiving device RX
The receiving device RX is configured by, for example, a smartphone. Note that as the receiving device RX, a tablet terminal, a personal computer, or the like may be used in addition to a smartphone.
　図４および図５は、それぞれ受信装置ＲＸのハードウェア構成およびソフトウェア構成の一例を示すブロック図である。 4 and 5 are block diagrams showing an example of the hardware configuration and software configuration of the receiving device RX, respectively.
　受信装置ＲＸは、送信装置ＴＸと同様にＣＰＵ等のハードウェアプロセッサを使用した制御部１０を備え、この制御部１０に対し、バス６０を介して、プログラム記憶部２０およびデータ記憶部３０を有する記憶ユニットと、入出力Ｉ／Ｆ部４０および通信Ｉ／Ｆ部５０とをそれぞれ接続したものとなっている。 Like the transmitter TX, the receiver RX includes a control section 10 using a hardware processor such as a CPU, and has a program storage section 20 and a data storage section 30 connected to the control section 10 via a bus 60. The storage unit is connected to an input/output I/F section 40 and a communication I/F section 50, respectively.
　入出力Ｉ／Ｆ部４０には、例えば液晶または有機ＥＬを使用する表示デバイス８０の表示画面上に、感圧式または静電容量式のタッチ型入力シートを使用する入力デバイス７０を重ねて配置したＵＩデバイスが接続される。入出力Ｉ／Ｆ部４０は、入力デバイス７０において入力された操作情報を取り込むと共に、表示情報を表示デバイス８０へ出力して表示させる機能を有する。なお、入出力Ｉ／Ｆ部４０には、カメラ等の他のデバイスが接続されていてもよい。 In the input/output I/F section 40, an input device 70 using a pressure-sensitive or capacitive touch-type input sheet is placed over a display screen of a display device 80 using, for example, a liquid crystal or an organic EL. UI device is connected. The input/output I/F unit 40 has a function of taking in operation information input through the input device 70 and outputting display information to the display device 80 for display. Note that other devices such as a camera may be connected to the input/output I/F section 40.
　通信Ｉ／Ｆ部５０は、ネットワークＮＷにより定義される通信プロトコルに従い、送信装置ＴＸからネットワークＮＷを介して伝送される付加情報送信用二次元コードおよびコンテンツ送信情報を受信する。 The communication I/F unit 50 receives the two-dimensional code for transmitting additional information and content transmission information transmitted via the network NW from the transmitting device TX in accordance with the communication protocol defined by the network NW.
　プログラム記憶部２０は、例えば、記憶媒体としてＳＳＤ等の随時書込みおよび読出しが可能な不揮発性メモリを用いたもので、ＯＳ等のミドルウェアに加えて、一実施形態に係る各制御処理を実行するために必要なアプリケーション・プログラムを格納する。なお、以後ＯＳと各アプリケーション・プログラムとをまとめてプログラムと称する。 The program storage unit 20 uses, for example, a non-volatile memory such as an SSD as a storage medium that can be written to and read from at any time, and stores application programs necessary to execute each control process according to one embodiment, in addition to middleware such as an OS. Hereinafter, the OS and each application program will be collectively referred to as the program.
　データ記憶部３０は、例えば、ＳＳＤ等の随時書込みおよび読出しが可能な不揮発性メモリと、ＲＡＭ等の揮発性メモリと組み合わせたもので、その記憶領域には、付加情報記憶部３０１と、受信ハッシュテーブル記憶部３０２とが設けられる。 The data storage unit 30 is a combination of a nonvolatile memory such as an SSD that can be written to and read at any time, and a volatile memory such as a RAM. A table storage unit 302 is provided.
　付加情報記憶部３０１は、送信装置ＴＸから伝送された付加情報送信用二次元コードをデコードすることにより再生された付加情報を記憶する。 The additional information storage unit 301 stores additional information reproduced by decoding the two-dimensional code for transmitting additional information transmitted from the transmitter TX.
　受信ハッシュテーブル記憶部３０２は、再生された上記付加情報から算出される受信ハッシュ値を、算出元となる付加情報と対応付けて記憶する。 The reception hash table storage unit 302 stores the reception hash value calculated from the reproduced additional information in association with the additional information that is the source of the calculation.
　制御部１０は、一実施形態を実施するために必要な処理機能として、付加情報送信用二次元コード受信処理部１０１と、付加情報送信用二次元コード復号処理部１０２と、受信ハッシュテーブル生成処理部１０３と、コンテンツ送信情報受信・表示処理部１０４と、要約表示用二次元コード復号処理部１０５と、付加情報検索処理部１０６と、付加情報表示処理部１０７とを備える。これらの処理部１０１～１０７は、何れもプログラム記憶部２０に格納されたアプリケーション・プログラムを制御部１０のハードウェアプロセッサに実行させることにより実現される。 The control unit 10 includes a two-dimensional code reception processing unit 101 for transmitting additional information, a two-dimensional code decoding processing unit 102 for transmitting additional information, and a reception hash table generation process as necessary processing functions to implement one embodiment. 103 , a content transmission information reception/display processing section 104 , a summary display two-dimensional code decoding processing section 105 , an additional information search processing section 106 , and an additional information display processing section 107 . These processing units 101 to 107 are all realized by causing the hardware processor of the control unit 10 to execute an application program stored in the program storage unit 20.
　なお、上記各処理部１０１～１０７の一部または全部は、ＬＳＩやＡＳＩＣ等のハードウェアを用いて実現されてもよい。 Note that a part or all of the processing units 101 to 107 described above may be realized using hardware such as LSI or ASIC.
　付加情報送信用二次元コード受信処理部１０１は、送信装置ＴＸから伝送された付加情報送信用二次元コードを通信Ｉ／Ｆ部５０を介して受信する。 The additional information transmission two-dimensional code reception processing unit 101 receives the additional information transmission two-dimensional code transmitted from the transmitter TX via the communication I/F unit 50.
　付加情報送信用二次元コード復号処理部１０２は、上記付加情報送信用二次元コード受信処理部１０１により受信された付加情報送信用二次元コードをデコードし、第２のデータ長の分割付加情報を再生する。そして、再生した上記分割付加情報を結合して付加情報記憶部３０１に記憶する。 The additional information transmission two-dimensional code decoding processing unit 102 decodes the additional information transmission two-dimensional code received by the additional information transmission two-dimensional code reception processing unit 101, and divides the divided additional information of the second data length. Reproduce. Then, the reproduced divided additional information is combined and stored in the additional information storage section 301.
　受信ハッシュテーブル生成処理部１０３は、上記付加情報記憶部３０１から上記付加情報を読み込み、当該付加情報について第１のデータ長ごとに受信ハッシュ値を算出する。そして、受信ハッシュテーブル生成処理部１０３は、算出した上記受信ハッシュ値を算出元の分割付加情報と対応付けた状態で受信ハッシュテーブル記憶部３０２に記憶する。 The reception hash table generation processing unit 103 reads the additional information from the additional information storage unit 301 and calculates a reception hash value for each first data length of the additional information. Then, the reception hash table generation processing unit 103 stores the calculated reception hash value in the reception hash table storage unit 302 in a state where it is associated with the division additional information from which the calculation is made.
　コンテンツ送信情報受信・表示処理部１０４は、送信装置ＴＸから伝送されたコンテンツ送信情報、つまりコンテンツに付加情報の要約を表す要約表示用二次元コードを付加した情報を通信Ｉ／Ｆ部５０を介して受信し、受信した上記コンテンツ送信情報を入出力Ｉ／Ｆ部４０を介して表示デバイス８０に表示する。 The content transmission information reception/display processing unit 104 transmits the content transmission information transmitted from the transmitting device TX, that is, information in which a two-dimensional summary display code representing a summary of additional information is added to the content, via the communication I/F unit 50. and displays the received content transmission information on the display device 80 via the input/output I/F section 40.
　要約表示用二次元コード復号処理部１０５は、表示された上記コンテンツ送信情報に含まれる要約表示用二次元コードをそれぞれデコードし、送信ハッシュ値を再生する。 The summary display two-dimensional code decoding processing unit 105 decodes each of the summary display two-dimensional codes contained in the displayed content transmission information and reproduces the transmission hash value.
　付加情報検索処理部１０６は、受信ハッシュテーブル記憶部３０２を検索することで、再生された上記送信ハッシュ値と同一の受信ハッシュ値を特定し、特定した受信ハッシュ値に対応付けて記憶されている分割付加情報を読み出す。 The additional information search processing unit 106 searches the reception hash table storage unit 302 to identify a reception hash value that is the same as the reproduced transmission hash value, and stores the reception hash value in association with the identified reception hash value. Read the division additional information.
　付加情報表示処理部１０７は、上記付加情報検索処理部１０６により読み出された分割付加情報を、入出力Ｉ／Ｆ部４０を介して表示デバイス８０へ出力し表示させる。 The additional information display processing unit 107 outputs the divided additional information read out by the additional information search processing unit 106 to the display device 80 via the input/output I/F unit 40 for display.
　（動作例）
　次に、以上のように構成された情報伝送システムの動作例を説明する。 (Operation example)
Next, an example of the operation of the information transmission system configured as above will be explained.
　情報伝送システムの動作は、付加情報を事前に一括伝送する「付加情報伝送フェーズ」と、その後コンテンツを上記付加情報の要約を付加した状態で伝送する「コンテンツ表示・伝送フェーズ」とに分けて行われる。 The operation of the information transmission system is divided into an "additional information transmission phase" in which additional information is transmitted all at once, and a "content display/transmission phase" in which the content is then transmitted with a summary of the additional information added. be exposed.
　なお、送信装置ＴＸのコンテンツ記憶部３１および付加情報記憶部３２には、それぞれ送信対象のコンテンツとその付加情報が事前に編集されて記憶されているものとして説明を行う。 Note that the following description assumes that the content to be transmitted and its additional information are edited and stored in advance in the content storage unit 31 and additional information storage unit 32 of the transmitter TX, respectively.
　（１）付加情報伝送フェーズ
　図６Ａおよび図７Ａは、それぞれ送信装置ＴＸの制御部１および受信装置ＲＸの制御部１０が実行する「付加情報伝送フェーズ」における処理手順と処理内容の一例を示すフローチャートである。 (1) Additional information transmission phase FIGS. 6A and 7A are flowcharts showing an example of the processing procedure and processing contents in the "additional information transmission phase" executed by the control unit 1 of the transmitting device TX and the control unit 10 of the receiving device RX, respectively. It is.
　（１－１）付加情報送信用データの生成
　送信装置ＴＸの制御部１は、付加情報送信用データ生成処理部１３の制御の下、先ずステップＳ１１において、付加情報記憶部３２に記憶された付加情報を、付加情報伝送用の二次元コードのサイズに応じて設定された第１のデータ長ごとに、Ｍ個のデータに分割し、このＭ個の分割データをｍ（ｍ＝１，２，…，Ｍ）番目から順に選択して読み込む。なお、付加情報は事前にＭ個のデータに分割されていてもよい。 (1-1) Generation of additional information transmission data Under the control of the additional information transmission data generation processing unit 13, the control unit 1 of the transmitter TX first generates additional information stored in the additional information storage unit 32 in step S11. The information is divided into M pieces of data for each first data length set according to the size of the two-dimensional code for transmitting additional information, and these M pieces of divided data are divided into m (m=1, 2, ..., M) and read them in order. Note that the additional information may be divided into M pieces of data in advance.
　付加情報送信用データ生成処理部１３は、続いてステップＳ１２において、読み込んだ上記ｍ番目の分割データについて、ハッシュ関数をもとに送信ハッシュ値を算出する。そして、付加情報送信用データ生成処理部１３は、ステップＳ１３において、算出した上記送信ハッシュ値とその算出元の分割データとを相互に対応付けて、送信ハッシュ値記憶部３３に保存する。 Subsequently, in step S12, the additional information transmission data generation processing unit 13 calculates a transmission hash value for the read m-th divided data based on the hash function. Then, in step S13, the additional information transmission data generation processing unit 13 stores the calculated transmission hash value and the divided data from which it was calculated in the transmission hash value storage unit 33 in association with each other.
　付加情報送信用データ生成処理部１３は、次にステップＳ１４において、上記ｍ番目の分割データの先頭位置にそのデータ長を表すビット値を付加した後、このｍ番目の分割データを一つ前のｍ－１番目の分割データの後尾に結合する。 Next, in step S14, the additional information transmission data generation processing unit 13 adds a bit value representing the data length to the head position of the m-th divided data, and then converts this m-th divided data into the previous one. Join to the end of the m-1th divided data.
　付加情報送信用データ生成処理部１３は、上記分割データの結合処理が終了すると、ステップＳ１０において、Ｍ個すべての分割データについて上記ハッシュ値の算出およびデータ結合処理が終了したか否かを判定する。そして、未処理の分割データがまだ残っていれば、ステップＳ１１～ステップＳ１４による上記一連の処理を繰り返し実行し、Ｍ個の分割データのすべてについての処理が終了すると、付加情報送信用データ生成処理を終了する。 When the additional information transmission data generation processing unit 13 completes the merging process of the divided data, in step S10, it determines whether the hash value calculation and data merging process have been completed for all M pieces of divided data. . If unprocessed divided data still remains, the above-mentioned series of processes from step S11 to step S14 are repeatedly executed, and when the processing for all M pieces of divided data is completed, additional information transmission data generation processing is performed. end.
　（１－２）付加情報の表示および送信
　送信装置ＴＸの制御部１は、次に付加情報送信用二次元コード生成処理部１４の制御の下、ステップＳ１５において、付加情報送信用二次元コードのサイズに応じて設定された第２のデータ長に基づいて、上記結合された付加情報の分割数Ｎを算出する。そして、付加情報送信用二次元コード生成処理部１４は、ステップＳ１６において、算出した上記分割数Ｎとなるように上記結合された付加情報を分割する。 (1-2) Display and Transmission of Additional Information Next, under the control of the additional information transmission two-dimensional code generation processing unit 14, the control unit 1 of the transmitter TX generates a two-dimensional code for additional information transmission in step S15. The number of divisions N of the combined additional information is calculated based on the second data length set according to the size. Then, in step S16, the additional information transmission two-dimensional code generation processing unit 14 divides the combined additional information into the calculated division number N.
　付加情報送信用二次元コード生成処理部１４は、続いてステップＳ１８により上記Ｎ個の分割付加情報をｎ（ｎ＝１，２，…，Ｎ）番目から順に選択し、ステップＳ１９において、選択した上記ｎ番目の分割付加情報に対応する二次元コードを生成する。 The additional information transmission two-dimensional code generation processing unit 14 then sequentially selects the N pieces of divided additional information in step S18 starting from the n (n=1, 2,...,N)-th, and in step S19, the selected A two-dimensional code corresponding to the n-th divided additional information is generated.
　送信装置ＴＸの制御部１は、次に付加情報送信用二次元コード表示・送信処理部１５の制御の下、ステップＳ２０において、生成された上記ｎ番目の付加情報送信用二次元コードを、入出力Ｉ／Ｆ部４から表示デバイス８へ出力し表示させる。 The control unit 1 of the transmitter TX then inputs the generated n-th additional information transmission two-dimensional code in step S20 under the control of the additional information transmission two-dimensional code display/transmission processing unit 15. It is output from the output I/F section 4 to the display device 8 and displayed.
　続いて付加情報送信用二次元コード表示・送信処理部１５は、上記ｎ番目の分割付加情報二次元コードの生成後、ステップＳ２１で予め設定されたＴ時間（秒）待機する。そして、ステップＳ２２において、送信者が送信完了ボタンＢＵを押下したか否かと、一定時間が経過したか否かを監視する。 Subsequently, the additional information transmission two-dimensional code display/transmission processing unit 15 waits for a preset time T (seconds) in step S21 after generating the n-th divided additional information two-dimensional code. Then, in step S22, it is monitored whether the sender has pressed the transmission completion button BU and whether a certain period of time has elapsed.
　この判定の結果、送信完了ボタンＢＵが押下されず、かつ一定時間が経過していなければ、ステップＳ１７において上記Ｎ個すべての分割付加情報について上記二次元コード化処理が終了したか否かを判定する。そして、未処理の分割付加情報が残っていれば、ステップＳ１８～Ｓ２２による上記一連の処理を繰り返し実行する。 As a result of this determination, if the transmission completion button BU is not pressed and a certain period of time has not elapsed, it is determined in step S17 whether or not the two-dimensional encoding process has been completed for all the N pieces of divided additional information. do. If unprocessed divisional additional information remains, the above series of processes in steps S18 to S22 are repeatedly executed.
　一方、Ｎ個すべての分割付加情報の二次元コード化および表示処理が終了したとする。この場合、付加情報送信用二次元コード表示・送信処理部１５は、ステップＳ２２において送信完了ボタンＢＵの押下および一定時間の経過を監視し、送信完了ボタンＢＵが押下されるか又は一定時間が経過すると、ステップＳ２３において、上記生成されたＮ個の付加情報送信用二次元コードを通信Ｉ／Ｆ部５から受信装置ＲＸに向け一括送信する。 On the other hand, assume that the two-dimensional encoding and display processing of all N pieces of divided additional information has been completed. In this case, the additional information transmission two-dimensional code display/transmission processing unit 15 monitors the pressing of the transmission completion button BU and the elapse of a certain period of time in step S22, and monitors whether the transmission completion button BU is pressed or a certain period of time has elapsed. Then, in step S23, the N generated two-dimensional codes for transmitting additional information are collectively transmitted from the communication I/F unit 5 to the receiving device RX.
　図８の左上のＷ１は、送信装置ＴＸにおける付加情報伝送フェーズの動作の一例を示すもので、複数の付加情報送信用二次元コードが表示された状態を示している。 W1 in the upper left of FIG. 8 shows an example of the operation of the additional information transmission phase in the transmitter TX, and shows a state in which a plurality of two-dimensional codes for transmitting additional information are displayed.
　（１－３）付加情報の受信再生
　一方、受信装置ＲＸの制御部１０は、送信装置ＴＸから上記Ｎ個の付加情報送信用二次元コードが伝送されると、付加情報送信用二次元コード受信処理部１０１の制御の下、ステップＳ３１において、上記Ｎ個の付加情報送信用二次元コードを通信Ｉ／Ｆ部５０を介して受信し、データ記憶部３０内のバッファ領域に一旦保存する。 (1-3) Reception and playback of additional information On the other hand, when the N pieces of two-dimensional codes for transmitting additional information are transmitted from the transmitter TX, the control unit 10 of the receiving device RX receives the two-dimensional codes for transmitting additional information. Under the control of the processing unit 101, in step S31, the N two-dimensional codes for transmitting additional information are received via the communication I/F unit 50 and temporarily stored in a buffer area within the data storage unit 30.
　受信装置ＲＸの制御部１０は、続いて付加情報送信用二次元コード復号処理部１０２の制御の下、ステップＳ３３において、受信した上記Ｎ個の付加情報送信用二次元コードをｎ番目から順に読み込み、読み込んだ上記付加情報送信用二次元コードをデコードしてｎ番目の分割付加情報を再生する。そして、付加情報送信用二次元コード復号処理部１０２は、ステップＳ３５において、上記ｎ番目の分割付加情報をｎ－１番目の分割付加情報に結合し、結合後の付加情報を付加情報記憶部３０１に記憶する。 Subsequently, under the control of the additional information transmission two-dimensional code decoding processing section 102, the control unit 10 of the receiving device RX sequentially reads the received N pieces of additional information transmission two-dimensional codes starting from the n-th one in step S33. , the read two-dimensional code for transmitting additional information is decoded to reproduce the n-th divided additional information. Then, in step S35, the additional information transmission two-dimensional code decoding processing unit 102 combines the n-th divided additional information with the (n-1)th divided additional information, and stores the combined additional information in the additional information storage unit 301. to be memorized.
　上記ｎ番目の分割付加情報の再生処理が終了すると、付加情報送信用二次元コード復号処理部１０２は、ステップＳ３２において、Ｎ個すべての分割付加情報の再生処理が終了したか否かを判定する。そして、未処理の付加情報送信用二次元コードが残っていれば、ステップＳ３３～Ｓ３５による上記処理を繰り返し実行し、Ｎ個すべての分割付加情報の再生処理が終了すれば、受信ハッシュテーブルの生成処理に移行する。 When the reproduction process of the n-th divided additional information is completed, the additional information transmission two-dimensional code decoding processing unit 102 determines whether the reproduction process of all N pieces of divided additional information has been completed in step S32. . Then, if an unprocessed additional information transmission two-dimensional code remains, the above processing in steps S33 to S35 is repeatedly executed, and when the reproduction processing of all N pieces of divided additional information is completed, a reception hash table is generated. Move to processing.
　（１－４）受信ハッシュテーブルの生成
　受信装置ＲＸの制御部１０は、受信ハッシュテーブル生成処理部１０３の制御の下、先ずステップＳ３７において、付加情報記憶部３０１に記憶されている付加情報を、第１のデータ長ごとにＭ個のデータに分割する。この付加情報の分割処理は、付加情報に含まれる各分割データのデータ長を表すビット値に従い、各分割データを切り出すことにより行われる。 (1-4) Generation of reception hash table Under the control of the reception hash table generation processing unit 103, the control unit 10 of the reception device RX first generates additional information stored in the additional information storage unit 301 in step S37. Divide into M pieces of data for each first data length. This additional information division process is performed by cutting out each piece of divided data according to the bit value representing the data length of each piece of divided data included in the additional information.
　受信ハッシュテーブル生成処理部１０３は、次にステップＳ３８において、上記付加情報の分割データをｍ番目から順に選択して読み込み、ステップＳ３９において、読み込んだ上記ｍ番目の分割データについて、送信装置ＴＸが使用するハッシュ関数と同一のハッシュ関数を用いて受信ハッシュ値を算出する。 Next, in step S38, the reception hash table generation processing unit 103 selects and reads the m-th divided data of the additional information in order, and in step S39, the transmission device TX selects and reads the m-th divided data that has been read. The received hash value is calculated using the same hash function as the hash function used to calculate the received hash value.
　そして、受信ハッシュテーブル生成処理部１０３は、ステップＳ４０において、生成した上記受信ハッシュ値を算出元のｍ番目の分割データと対応付け、これを受信ハッシュテーブル記憶部３０２に記憶する。図８の領域Ｗ３は、以上のようにして生成された受信ハッシュテーブルの一例を示すものである。 Then, in step S40, the reception hash table generation processing unit 103 associates the generated reception hash value with the m-th divided data from which it was calculated, and stores this in the reception hash table storage unit 302. Area W3 in FIG. 8 shows an example of a reception hash table generated in the above manner.
　受信ハッシュテーブル生成処理部１０３は、上記ｍ番目の分割データについての処理が終了すると、ステップＳ３６において、Ｍ個の分割データすべてについて処理が終了したか否かを判定する。この判定の結果、未処理の分割データが残っていれば、上記ステップＳ３７～Ｓ４０により処理を繰り返し行い、一方Ｍ個すべての分割データについての処理が終了すれば受信ハッシュテーブルの生成処理を終了する。 When the reception hash table generation processing unit 103 finishes processing the m-th divided data, it determines in step S36 whether or not the processing has finished for all M pieces of divided data. As a result of this determination, if unprocessed divided data remains, the processing is repeated in steps S37 to S40, and on the other hand, if the processing for all M pieces of divided data is completed, the reception hash table generation process is ended. .
　（２）コンテンツ表示・伝送フェーズ
　図６Ｂおよび図７Ｂは、それぞれ送信装置ＴＸの制御部１および受信装置ＲＸの制御部１０が実行する「コンテンツ表示・伝送フェーズ」における処理手順と処理内容の一例を示すフローチャートである。 (2) Content display/transmission phase FIGS. 6B and 7B show an example of the processing procedure and processing details in the "content display/transmission phase" executed by the control unit 1 of the transmitting device TX and the control unit 10 of the receiving device RX, respectively. FIG.
　（２－１）コンテンツ送信情報の生成・送信
　送信装置ＴＸの制御部１は、ステップＳ２３により送信対象のコンテンツを表示デバイス８に表示した状態で、先ず要約表示用二次元コード生成処理部１６の制御の下、ステップＳ２５において、送信ハッシュ値記憶部３３からｍ番目の送信ハッシュ値を読み出す。そして、読み出した上記ｍ番目の送信ハッシュ値をもとにその二次元コードを生成する。すなわち、付加情報の要約を表す二次元コードを生成する。 (2-1) Generation and Transmission of Content Transmission Information The control unit 1 of the transmitting device TX first starts the two-dimensional code generation processing unit 16 for summary display with the content to be transmitted displayed on the display device 8 in step S23. Under the control, in step S25, the m-th transmission hash value is read from the transmission hash value storage section 33. Then, the two-dimensional code is generated based on the read m-th transmission hash value. That is, a two-dimensional code representing a summary of additional information is generated.
　送信装置ＴＸの制御部１は、続いてコンテンツ送信情報生成処理部１７の制御の下、ステップＳ２６において、コンテンツ記憶部３１から読み出したコンテンツに、上記要約表示用二次元コード生成処理部１６により生成された上記要約送信用二次元コードを付加することにより、コンテンツ送信情報を生成する。 Then, in step S26, the control unit 1 of the transmission device TX, under the control of the content transmission information generation processing unit 17, generates content transmission information by adding the two-dimensional code for summary transmission generated by the two-dimensional code generation processing unit 16 for summary display to the content read from the content storage unit 31.
　そして、送信装置ＴＸの制御部１は、コンテンツ送信情報表示・送信処理部１８の制御の下、生成された上記コンテンツ送信情報を入出力Ｉ／Ｆ部４から表示デバイス８へ出力し、表示させる。図８のＷ２に、上記コンテンツ送信情報、つまりコンテンツに付加情報の要約を表す二次元コードを付加した情報の表示結果に一例を示す。 Then, the control unit 1 of the transmitting device TX outputs the generated content transmission information from the input/output I/F unit 4 to the display device 8 and displays it under the control of the content transmission information display/transmission processing unit 18. . W2 in FIG. 8 shows an example of the display result of the content transmission information, that is, information obtained by adding a two-dimensional code representing a summary of additional information to the content.
　送信装置ＴＸの制御部１は、最後に、コンテンツ送信情報表示・送信処理部１８の制御の下、ステップＳ２７において、表示された上記コンテンツ送信情報を通信Ｉ／Ｆ部５から受信装置ＲＸに向け送信する。 Finally, under the control of the content transmission information display/transmission processing unit 18, the control unit 1 of the transmitting device TX directs the displayed content transmission information from the communication I/F unit 5 to the receiving device RX in step S27. Send.
　送信装置ＴＸの制御部１は、ステップＳ２３において、Ｍ個すべての送信ハッシュ値に対する処理が終了したか否かを判定する。この判定の結果、未処理の送信ハッシュ値が残っていれば、ステップＳ２５～Ｓ２７による上記処理を繰り返し実行する。一方、Ｍ個すべての送信ハッシュ値に対する処理が終了すると、コンテンツ表示・伝送フェーズにおける一連のコンテンツ送信情報の送信処理を終了し、待機状態に戻る。 In step S23, the control unit 1 of the transmitting device TX determines whether processing for all M transmission hash values has been completed. As a result of this determination, if unprocessed transmission hash values remain, the above-mentioned processing in steps S25 to S27 is repeatedly executed. On the other hand, when the processing for all M transmission hash values is completed, the series of transmission processing of content transmission information in the content display/transmission phase is completed, and the process returns to the standby state.
　（２－２）付加情報の再生・表示
　受信装置ＲＸの制御部１０は、送信装置ＴＸからコンテンツ送信情報が伝送されると、コンテンツ送信情報受信・表示処理部１０４の制御の下、ステップＳ４１において上記コンテンツ送信情報を通信Ｉ／Ｆ部５０を介して受信する。そして、コンテンツ送信情報受信・表示処理部１０４は、受信した上記コンテンツ送信情報を入出力Ｉ／Ｆ部４０から表示デバイス８０へ出力し、表示させる。 (2-2) Reproducing/Displaying Additional Information When the content transmission information is transmitted from the transmitting device TX, the control unit 10 of the receiving device RX, under the control of the content transmission information reception/display processing unit 104, performs a process in step S41. The content transmission information is received via the communication I/F section 50. Then, the content transmission information reception/display processing unit 104 outputs the received content transmission information from the input/output I/F unit 40 to the display device 80 and displays it.
　この結果、受信装置ＲＸの表示デバイス８０には、コンテンツに付加情報の要約を表す小サイズの二次元コードが付加された情報、つまり図８のＷ２に示した情報が表示される。従って、コンテンツは、要約表示用二次元コードにより表示領域が圧迫されることなく、全文が一覧表示可能となる。 As a result, information in which a small-sized two-dimensional code representing a summary of additional information is added to the content, that is, information shown in W2 in FIG. 8, is displayed on the display device 80 of the receiving device RX. Therefore, the entire content can be displayed as a list without the display area being compressed by the two-dimensional code for summary display.
　受信装置ＲＸの制御部１０は、次に要約表示用二次元コード復号処理部１０５の制御の下、ステップＳ４３において、表示された上記Ｍ個の要約表示用二次元コードからｍ番目の要約表示用二次元コードを選択する。そして、要約表示用二次元コード復号処理部１０５は、選択した上記ｍ番目の要約表示用二次元コードをデコードし、送信ハッシュ値を再生する。 Next, in step S43, under the control of the summary display two-dimensional code decoding processing unit 105, the control unit 10 of the receiving device RX selects the m-th summary display code from the M summary display two-dimensional codes displayed. Select 2D code. Then, the summary display two-dimensional code decoding processing unit 105 decodes the selected m-th summary display two-dimensional code and reproduces the transmission hash value.
　受信装置ＲＸの制御部１０は、続いて付加情報検索処理部１０６の制御の下、先ずステップＳ４５において、上記再生された送信ハッシュ値と同一の受信ハッシュ値を受信ハッシュテーブル記憶部３０２から検索する。そして、付加情報検索処理部１０６は、ステップＳ４６において、受信ハッシュテーブル記憶部３０２から、上記受信ハッシュ値に対応付けられた付加情報の分割データを読み出す。 Next, under the control of the additional information search processing unit 106, the control unit 10 of the receiving device RX first searches the reception hash table storage unit 302 for a reception hash value that is the same as the reproduced transmission hash value in step S45. . Then, in step S46, the additional information search processing unit 106 reads out the divided data of the additional information associated with the received hash value from the reception hash table storage unit 302.
　受信装置ＲＸの制御部１０は、続いて付加情報表示処理部１０７の制御の下、ステップＳ４６において、読み出した上記付加情報の分割データを入出力Ｉ／Ｆ部４０から表示デバイス８０へ出力し、表示中の要約送信用二次元コードに代えて表示させる。 The control unit 10 of the receiving device RX then outputs the read divided data of the additional information from the input/output I/F unit 40 to the display device 80 under the control of the additional information display processing unit 107 in step S46, and displays it in place of the two-dimensional code for summary transmission that is currently being displayed.
　上記ｍ番目の要約表示用二次元コードに対応する分割データの再生・表示処理が終了すると、受信装置ＲＸの制御部１０は、ステップＳ４７において、付加情報の表示終了操作を判定する。この判定の結果、表示終了操作が行われなければ、ステップＳ４２に戻ってＭ個すべての要約送信用二次元コードに対する分割データの再生処理が終了したか否かを判定する。 When the reproduction/display processing of the divided data corresponding to the m-th summary display two-dimensional code is completed, the control unit 10 of the receiving device RX determines an operation to end the display of additional information in step S47. As a result of this determination, if the display termination operation is not performed, the process returns to step S42 and it is determined whether or not the reproduction process of the divided data for all M two-dimensional codes for summary transmission has been completed.
　この判定の結果、未処理の要約表示用二次元コードが残っていれば、受信装置ＲＸの制御部１０は、ステップＳ４３～Ｓ４７による上記一連の処理を繰り返し実行する。かくして、表示デバイス８０には、Ｍ個の要約表示用二次元コードに対応する付加情報の分割データが順次表示される。 As a result of this determination, if an unprocessed summary display two-dimensional code remains, the control unit 10 of the receiving device RX repeatedly executes the above series of processes in steps S43 to S47. In this way, the display device 80 sequentially displays the divided data of additional information corresponding to the M two-dimensional codes for summary display.
　一方、例えば受信者が、入力デバイス７０において表示終了要求を入力すると、受信装置ＲＸの制御部１０は、上記付加情報の表示を終了して待機状態に戻る。 On the other hand, for example, when the recipient inputs a display end request using the input device 70, the control unit 10 of the receiving device RX ends displaying the additional information and returns to the standby state.
　なお、以上の説明では、ｍ番目の要約表示用二次元コードに対応する分割データが再生されるごとに当該分割データを順次表示するようにしたが、Ｍ個すべての要約表示用二次元コードに対応する分割データの再生が終了した後に、これらの分割データを合成して元の付加情報を完全に再生した後に表示するようにしてもよい。 In the above explanation, each time the divided data corresponding to the m-th summary display two-dimensional code is played, the divided data is sequentially displayed. However, if all M summary display two-dimensional codes are After the reproduction of the corresponding divided data is completed, these divided data may be combined and the original additional information may be completely reproduced and then displayed.
　（作用・効果）
　以上述べたように一実施形態では、先ず付加情報伝送フェーズにおいて、送信装置ＴＸが、送信対象の付加情報をＮ個に分割したのちそれぞれ付加情報送信用二次元コードに変換し、これらを一括送信する。次にコンテンツ表示・伝送フェーズにおいて、送信装置ＴＸは、上記付加情報をＭ個に分割したのちそれぞれ送信ハッシュ値に変換し、さらにこれらを二次元コード化してコンテンツに付加し送信する。 (action/effect)
As described above, in one embodiment, first, in the additional information transmission phase, the transmitting device TX divides the additional information to be transmitted into N pieces, converts each into a two-dimensional code for transmitting additional information, and transmits them all at once. do. Next, in the content display/transmission phase, the transmitting device TX divides the additional information into M pieces, converts each into a transmission hash value, converts them into two-dimensional codes, adds them to the content, and transmits them.
　これに対し受信装置では、先ず付加情報伝送フェーズにおいて、上記付加情報送信用のＮ個の二次元コードを受信し、受信した上記付加情報送信用のＮ個の二次元コードをそれぞれデコードして付加情報の分割データを再生し、これらを結合することにより付加情報を再生する。そして、再生した付加情報について所定のデータ長ごとに受信ハッシュ値を生成し、生成した各受信ハッシュ値を生成元の付加情報と対応付けることで受信ハッシュテーブルを生成する。続いて、コンテンツ表示・伝送フェーズにおいて、上記要約表示用二次元コードが付加されたコンテンツが受信されると、受信された上記要約表示用二次元コードを送信ハッシュ値に変換した後、この送信ハッシュ値と同一の上記受信ハッシュ値に対応付けられている付加情報を受信ハッシュテーブルから読み出し表示する。 On the other hand, in the receiving device, first in the additional information transmission phase, the N two-dimensional codes for transmitting the additional information are received, and each of the received N two-dimensional codes for transmitting the additional information is decoded and added. Additional information is reproduced by reproducing divided data of information and combining them. Then, a reception hash value is generated for each predetermined data length for the reproduced additional information, and a reception hash table is generated by associating each generated reception hash value with the additional information of the generation source. Subsequently, in the content display/transmission phase, when the content to which the two-dimensional code for summary display is added is received, the received two-dimensional code for summary display is converted into a transmission hash value, and then this transmission hash value is converted into a transmission hash value. The additional information associated with the received hash value that is the same as the received hash value is read out from the received hash table and displayed.
　従って、一実施形態によれば、送信装置ＴＸから受信装置ＲＸへは、データ容量の小さい要約表示用の二次元コードがコンテンツに付加されて伝送されることになり、これにより受信装置ＲＸにおいてコンテンツを表示する際に、コンテンツの表示領域が要約表示用二次元コードにより圧迫されて視認性が低下する不具合は軽減される。 Therefore, according to one embodiment, a two-dimensional code for summary display, which has a small data capacity, is added to the content and transmitted from the transmitting device TX to the receiving device RX, thereby reducing the problem that the display area of the content is compressed by the two-dimensional code for summary display, reducing visibility, when the content is displayed on the receiving device RX.
　また、付加情報はコンテンツとは別に単独で一括伝送されるため、付加情報をコンテンツに付加した状態で動画像として伝送する場合に比べ、受信装置ＲＸにおいてコンテンツの表示にちらつき等が発生する不具合も防止することができる。さらに、付加情報は一括伝送されるので、付加情報の伝送に要する時間も短縮することが可能となり、これによりネットワークのトラフィックの増加を抑制することが可能となる。 Additionally, since the additional information is transmitted separately from the content in a batch, compared to the case where the additional information is added to the content and transmitted as a moving image, there are also problems such as flickering in the display of the content on the receiving device RX. It can be prevented. Furthermore, since the additional information is transmitted all at once, the time required for transmitting the additional information can also be shortened, thereby making it possible to suppress an increase in network traffic.
　［その他の実施形態］
　（１）受信装置ＲＸにおいて、コンテンツおよび要約送信用二次元コードが表示された状態で受信者による再生要求の入力を待ち、再生要求が入力された場合に上記要約表示用二次元コードをデコードして付加情報を再生し、表示するようにしてもよい。 [Other embodiments]
(1) The receiving device RX waits for the receiver to input a playback request while displaying the content and the two-dimensional code for summary transmission, and when the playback request is input, decodes the two-dimensional code for summary display. The additional information may also be reproduced and displayed.
　（２）付加情報送信用二次元コードおよび要約表示用二次元コードが紙面等に一旦印刷される場合には、受信装置ＲＸが備えるカメラと二次元コードの読み取り用アプリケーションを用いて上記各二次元コードを読み取ることで、付加情報を再生するようにしてもよい。 (2) When the two-dimensional code for transmitting additional information and the two-dimensional code for summary display are once printed on paper, each of the two-dimensional codes mentioned above is The additional information may be reproduced by reading the code.
　（３）その他、送信装置および受信装置の種類や構成、これらの装置が付加情報伝送フェーズおよびコンテンツ表示・伝送フェーズにおいて実行する処理の手順と処理内容、コンテンツおよび付加情報の種類や構成、二次元コードの種類等についても、この発明の要旨を逸脱しない範囲で種々変形して実施可能である。 (3) In addition, the types and configurations of transmitting devices and receiving devices, the procedures and contents of processing that these devices execute in the additional information transmission phase and the content display/transmission phase, the types and configurations of content and additional information, two-dimensional The types of codes and the like can also be modified in various ways without departing from the gist of the invention.
　以上、この発明の実施形態を詳細に説明してきたが、前述までの説明はあらゆる点においてこの発明の例示に過ぎない。この発明の範囲を逸脱することなく種々の改良や変形を行うことができることは言うまでもない。つまり、この発明の実施にあたって、実施形態に応じた具体的構成が適宜採用されてもよい。 Although the embodiments of the present invention have been described in detail above, the above description is merely an example of the present invention in every respect. It goes without saying that various improvements and modifications can be made without departing from the scope of the present invention. In other words, when implementing the present invention, specific configurations according to the embodiments may be appropriately adopted.
　要するにこの発明は、上記実施形態そのままに限定されるものではなく、実施段階ではその要旨を逸脱しない範囲で構成要素を変形して具体化できる。また、上記実施形態に開示されている複数の構成要素の適宜な組み合せにより種々の発明を形成できる。例えば、実施形態に示される全構成要素から幾つかの構成要素を削除してもよい。さらに、異なる実施形態に亘る構成要素を適宜組み合せてもよい。 In short, this invention is not limited to the above-described embodiment as it is, and in the implementation stage, the components can be modified and embodied without departing from the gist of the invention. Furthermore, various inventions can be formed by appropriately combining multiple components disclosed in the above-described embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, components from different embodiments may be appropriately combined.
　［適用例］
　送信装置ＴＸにおいて、秘匿情報を要約送信用二次元コードに変換したのち、コンテンツ等の主情報に付加して或いは単独で送信し、上記主情報および要約送信用二次元コードを受信装置ＲＸにより受信して表示する。そして、この状態で上記受信装置ＲＸに表示された要約送信用二次元コードを、例えばスマートグラス等の端末により読み取って解読し、表示するようにしてもよい。このようにすると、特定の利用者のみ秘匿情報を再生し確認することが可能となる。 [Application example]
The transmitting device TX converts the confidential information into a two-dimensional code for summary transmission, and then adds it to main information such as content or transmits it alone, and the receiving device RX receives the main information and the two-dimensional code for summary transmission. and display it. Then, in this state, the two-dimensional code for summary transmission displayed on the receiving device RX may be read, decoded, and displayed by a terminal such as smart glasses. In this way, only a specific user can reproduce and confirm the confidential information.
　ＴＸ…送信装置
　ＲＸ…受信装置
　ＮＷ…ネットワーク
　１，１０…制御部
　２，２０…プログラム記憶部
　３，３０…データ記憶部
　４，４０…入出力Ｉ／Ｆ部
　５，５０…通信Ｉ／Ｆ部
　６，６０…バス
　７，７０…入力デバイス
　８，８０…表示デバイス
　１１…コンテンツ編集処理部
　１２…付加情報編集処理部
　１３…付加情報送信用データ生成処理部
　１４…付加情報送信用二次元コード生成処理部
　１５…付加情報送信用二次元コード表示・送信処理部
　１６…要約表示用二次元コード生成処理部
　１７…コンテンツ送信情報生成処理部
　１８…コンテンツ送信情報表示・送信処理部
　３１…コンテンツ記憶部
　３２…付加情報記憶部
　３３…送信ハッシュ値記憶部
　１０１…付加情報送信用二次元コード受信処理部
　１０２…付加情報送信用二次元コード復号処理部
　１０３…受信ハッシュテーブル生成処理部
　１０４…コンテンツ送信情報受信・表示処理部
　１０５…要約表示用二次元コード復号処理部
　１０６…付加情報検索処理部
　１０７…付加情報表示処理部
　３０１…付加情報記憶部
　３０２…受信ハッシュテーブル記憶部
  TX... Transmitting device RX... Receiving device NW... Network 1, 10... Control section 2, 20... Program storage section 3, 30... Data storage section 4, 40... Input/output I/ F section 5, 50... Communication I/ F section 6, 60... Bus 7, 70... Input device 8, 80... Display device 11... Content editing processing unit 12... Additional information editing processing unit 13... Data generation processing unit for additional information transmission 14... Two-dimensional code generation for additional information transmission Processing section 15... Two-dimensional code display/transmission processing section for additional information transmission 16... Two-dimensional code generation processing section for summary display 17... Content transmission information generation processing section 18... Content transmission information display/transmission processing section 31... Content storage section 32...Additional information storage section 33...Transmission hash value storage section 101...Two-dimensional code reception processing section for additional information transmission 102...Two-dimensional code decoding processing section for additional information transmission 103...Reception hash table generation processing section 104...Content transmission information Reception/display processing section 105...Summary display two-dimensional code decoding processing section 106...Additional information search processing section 107...Additional information display processing section 301...Additional information storage section 302...Reception hash table storage section

Claims (8)

  1. 　送信装置から受信装置へ、主情報および当該主情報に関連する付加情報を伝送する情報伝送システムであって、
    　前記送信装置は、
    　　前記付加情報を一括して前記受信装置へ送信する第１の処理部と、
    　　前記付加情報をもとに当該付加情報に係る送信要約情報を生成する第２の処理部と、
    　　前記主情報を、送信済の前記付加情報に対応する前記送信要約情報と共に前記受信装置へ送信する第３の処理部と
    　を備え、
    　前記受信装置は、
    　　前記送信装置から送信された前記付加情報を受信し保存する第４の処理部と、
    　　受信された前記付加情報をもとに受信要約情報を生成し、生成した前記受信要約情報を生成元の前記付加情報と対応付けて記憶部に保存する第５の処理部と、
    　　前記送信装置から送信された前記主情報および前記送信要約情報を受信する第６の処理部と、
    　　受信された前記送信要約情報と同一の前記受信要約情報に対応付けられた前記付加情報を前記記憶部から読み出し、読み出した前記付加情報を出力する第７の処理部と
    　を備える
    　情報伝送システム。     An information transmission system that transmits main information and additional information related to the main information from a transmitting device to a receiving device,
    The transmitting device includes:
    a first processing unit that transmits the additional information all at once to the receiving device;
    a second processing unit that generates transmission summary information related to the additional information based on the additional information;
    a third processing unit that transmits the main information to the receiving device together with the transmission summary information corresponding to the transmitted additional information,
    The receiving device includes:
    a fourth processing unit that receives and stores the additional information transmitted from the transmitting device;
    a fifth processing unit that generates reception summary information based on the received additional information, and stores the generated reception summary information in a storage unit in association with the generation source additional information;
    a sixth processing unit that receives the main information and the transmission summary information transmitted from the transmitting device;
    An information transmission system, comprising: a seventh processing unit that reads the additional information associated with the received summary information that is the same as the received transmission summary information from the storage unit, and outputs the read additional information.
  2. 　主情報および当該主情報に関連する付加情報を受信装置へ送信する送信装置であって、
    　前記付加情報を一括して前記受信装置へ送信する第１の処理部と、
    　前記付加情報をもとに当該付加情報に係る要約情報を生成する第２の処理部と、
    　前記主情報を、送信済の前記付加情報に対応する前記要約情報と共に前記受信装置へ送信する第３の処理部と
    　を備える送信装置。     A transmitting device that transmits main information and additional information related to the main information to a receiving device,
    a first processing unit that transmits the additional information all at once to the receiving device;
    a second processing unit that generates summary information regarding the additional information based on the additional information;
    a third processing unit that transmits the main information to the receiving device together with the summary information corresponding to the transmitted additional information.
  3. 　前記第１の処理部は、前記付加情報を予め設定された情報量ごとに複数の分割情報に分け、前記複数の分割情報をそれぞれ付加情報送信用二次元コードに変換し、変換した複数の前記付加情報送信用二次元コードを一括して前記受信装置へ送信する、請求項２に記載の送信装置。 The transmitting device according to claim 2, wherein the first processing unit divides the additional information into a plurality of pieces of divided information for each predetermined amount of information, converts each of the plurality of pieces of divided information into a two-dimensional code for transmitting additional information, and transmits the plurality of converted two-dimensional codes for transmitting additional information to the receiving device all at once.
  4. 　前記第２の処理部は、予め用意されたハッシュ関数をもとに前記付加情報について所定のデータ長ごとにそれぞれ送信ハッシュ値を生成し、
    　前記第３の処理部は、生成された前記送信ハッシュ値をそれぞれ要約表示用二次元コードに変換し、前記要約表示用二次元コードを前記主情報に付加して前記受信装置へ送信する、
    　請求項２に記載の送信装置。     The second processing unit generates a transmission hash value for each predetermined data length for the additional information based on a hash function prepared in advance,
    The third processing unit converts each of the generated transmission hash values into a two-dimensional summary display code, adds the summary display two-dimensional code to the main information, and transmits the resultant to the receiving device.
    The transmitting device according to claim 2.
  5. 　送信装置から送信される主情報および当該主情報に関連する付加情報を受信する受信装置であって、
    　前記送信装置から送信された前記付加情報を受信し保存する第１の処理部と、
    　受信された前記付加情報をもとに当該付加情報に係る受信要約情報を生成し、生成した前記受信要約情報を生成元の前記付加情報と対応付けて記憶部に保存する第２の処理部と、
    　前記送信装置から送信された、前記主情報および当該主情報をもとに前記送信装置により生成された送信要約情報を受信する第３の処理部と、
    　受信された前記送信要約情報と同一の前記受信要約情報に対応付けられた前記付加情報を前記記憶部から読み出し、読み出した前記付加情報を出力する第４の処理部と
    　を備える受信装置。     A receiving device that receives main information transmitted from a transmitting device and additional information related to the main information,
    a first processing unit that receives and stores the additional information transmitted from the transmitting device;
    a second processing unit that generates reception summary information related to the additional information based on the received additional information, and stores the generated reception summary information in a storage unit in association with the generation source additional information; ,
    a third processing unit that receives the main information transmitted from the transmitting device and transmission summary information generated by the transmitting device based on the main information;
    a fourth processing section that reads the additional information associated with the same reception summary information as the received transmission summary information from the storage section, and outputs the read additional information.
  6. 　前記第２の処理部は、予め用意されたハッシュ関数をもとに、受信された前記付加情報について所定のデータ長ごとにそれぞれ受信ハッシュ値を生成し、生成した前記受信ハッシュ値を生成元の前記付加情報と対応付けて前記記憶部に保存し、
    　前記第３の処理部は、前記送信装置から送信された、前記主情報と、前記付加情報について前記データ長ごとにそれぞれ生成された送信ハッシュ値を表す送信二次元コードとを受信し、
    　前記第４の処理部は、受信された前記送信二次元コードにより表される前記送信ハッシュ値と同一の前記受信ハッシュ値に対応付けられた前記付加情報を前記記憶部から読み出し、読み出した前記付加情報を出力する
    　請求項５に記載の受信装置。     The second processing unit generates a received hash value for each predetermined data length for the received additional information based on a hash function prepared in advance, and applies the generated received hash value to the generation source. storing it in the storage unit in association with the additional information;
    The third processing unit receives the main information and a transmission two-dimensional code representing a transmission hash value generated for each data length for the additional information, transmitted from the transmission device,
    The fourth processing unit reads from the storage unit the additional information associated with the received hash value that is the same as the transmitted hash value represented by the received transmitted two-dimensional code; The receiving device according to claim 5, which outputs information.
  7. 　送信装置から受信装置へ、主情報および当該主情報に関連する付加情報を伝送するシステムにより実行される情報伝送方法であって、
    　前記送信装置が、前記付加情報を一括して前記受信装置へ送信する過程と、
    　前記送信装置が、前記付加情報をもとに当該付加情報に係る送信要約情報を生成する過程と、
    　前記送信装置が、前記主情報を、送信済の前記付加情報に対応する前記送信要約情報と共に前記受信装置へ送信する過程と
    　を備え、
    　前記受信装置が、前記送信装置から送信された前記付加情報を受信し保存する過程と、
    　前記受信装置が、受信された前記付加情報をもとに受信要約情報を生成し、生成した前記受信要約情報を生成元の前記付加情報と対応付けて記憶部に保存する過程と、
    　前記受信装置が、前記送信装置から送信された前記主情報および前記送信要約情報を受信する過程と、
    　前記受信装置が、受信された前記送信要約情報と同一の前記受信要約情報に対応付けられた前記付加情報を前記記憶部から読み出し、読み出した前記付加情報を出力する過程と
    　を備える
    　情報伝送方法。     An information transmission method performed by a system that transmits main information and additional information related to the main information from a transmitting device to a receiving device, the method comprising:
    a step in which the transmitting device transmits the additional information all at once to the receiving device;
    a step in which the transmitting device generates transmission summary information regarding the additional information based on the additional information;
    a step in which the transmitting device transmits the main information to the receiving device together with the transmission summary information corresponding to the transmitted additional information,
    a step in which the receiving device receives and stores the additional information transmitted from the transmitting device;
    a step in which the receiving device generates reception summary information based on the received additional information, and stores the generated reception summary information in a storage unit in association with the generation source additional information;
    a step in which the receiving device receives the main information and the transmission summary information transmitted from the transmitting device;
    The receiving device reads the additional information associated with the reception summary information that is the same as the received transmission summary information from the storage unit, and outputs the read additional information.
  8. 　請求項１に記載の情報伝送システムの前記送信装置が備える第１乃至第３の処理部および前記受信装置が備える第４乃至第７の処理部が実行する各処理の少なくとも１つを、前記送信装置または前記受信装置が備えるプロセッサに実行させるプログラム。 In the information transmission system according to claim 1, at least one of the processes executed by the first to third processing units included in the transmitting device and the fourth to seventh processing units included in the receiving device is performed by the transmitting device. A program that is executed by a processor included in the device or the receiving device.
PCT/JP2022/034985 2022-09-20 2022-09-20 Information transmission system, transmission device, reception device, information transmission method, and program WO2024062524A1 (en)

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