JP2012018467A - Information processor and terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processor with a terminal and plural display devices connected that facilitates operation for displaying any page in book data on each display device and reduces latency time.SOLUTION: An information processor includes: a transmission destination specifying unit 17 for transmitting a first signal specifying a transmission destination of image data to display devices 30A-30D; a terminal communication unit 16 for receiving second signals transmitted by the display devices when the first signal is received, and transmitting the image data to the display devices in image unit; and a control unit 18 for controlling transmission of the image data in image unit to the display devices according to the order of the second signal reception. When the terminal communication unit is transmitting first image data to a predetermined display device and one of the display devices that transmit the second signals is the predetermined display device at the time of the second signal reception, the control unit stops transmission of the first image data and controls transmission of second image data different from the first image data to the predetermined display device.

Description

  The present invention relates to an information processing apparatus and a terminal.

  A mobile terminal having a communication function via a public line such as a mobile phone generally has a small display screen and insufficient resolution. Therefore, it is not suitable for browsing a still image such as an electronic book obtained through a public line. On the other hand, an electronic book terminal that obtains an electronic book through a public line and displays a still image of the obtained electronic book on a relatively large screen has been put into practical use. The electronic book terminal has a communication function for obtaining an electronic book via a public line. If the electronic book terminal is a wireless communication function, the electronic book terminal has the same communication function as a mobile phone.

  Therefore, the mobile terminal (telephone) main body and a display device having a large display screen separate from the mobile terminal main body are combined, and image data is transmitted from the mobile terminal main body to the display device using a short-range communication method. An information processing apparatus (browsing system) that displays a still image on a large display screen of a display device has been proposed. The display screen of the display device is composed of low power consumption electronic paper having a memory property used for an electronic book terminal, for example. By using the portable terminal in such a form, an information processing apparatus for browsing an electronic book can be realized.

  Although electronic paper has low power consumption, since the rewriting time of display is long, it is not possible to display a booklet format composed of a plurality of pages, such as a book, so as to turn the pages. Therefore, it is considered to combine a plurality of display devices and display a plurality of pages simultaneously on the plurality of display devices so that the plurality of pages can be browsed simultaneously.

  In order to make browsing easier, when the number of display devices (screens) is increased and the ease of connection at that time is considered, a wireless communication method between the form terminal and the display device is effective. In this case, it is necessary to identify which of a plurality of display devices is the image data transmission destination. Regarding the identification of the transmission destination, for example, a method of combining two types of communication schemes for transmission destination identification and data communication has been proposed.

  In a mobile terminal with scarce resources such as a mobile phone, it is difficult to wirelessly connect to a plurality of display devices at the same time and transmit data in parallel, and a reduction in throughput is inevitable. Therefore, it is necessary to wirelessly connect one of the plurality of display devices and the mobile terminal on a one-to-one basis and switch the connection with the display device for each image to be displayed.

  For the above reasons, when the booklet data which is a still image is browsed by the above information processing apparatus, after the operation of specifying the display device, the image data is transmitted wirelessly and the image data is displayed on the electronic paper. The user had to repeat the operation multiple times as many times as the number of pages to be viewed.

Although electronic paper has memory properties, it takes time to rewrite, so considering the time required to finish rewriting the entire electronic paper (around 8 seconds), the above-mentioned user work takes time. turn into. Further, the page image in accordance with the display resolution of the electronic paper has a large data size. For example, when Bluetooth (registered trademark) ^TM is used as a wireless system, transmission may take several seconds (around 5 seconds).

  For this reason, it is inconvenient to wait for a long processing time for each page, although it is necessary to repeat the work for the number of pages to be viewed.

  In addition, since a display screen using electronic paper with memory characteristics does not require power supply except during drawing (rewriting), it can be used for buffer memory, electronic paper drive circuits, wireless communication circuits, etc. included in display devices. It is desirable that the power supply is not performed except during execution of a process related to drawing.

Japanese Patent No. 3894546 JP 2002-163257 A JP 2002-63652 A JP 2008-268565 A JP 2009-20903 A JP 2009-53888 A JP 2007-286780 A JP 2004-166219 A

  In an information processing apparatus (browsing system) in which a portable terminal and a plurality of display devices are wirelessly connected, it has been desired that an operation for displaying a page of booklet data to be displayed on a plurality of display devices can be easily performed in a short time. .

  According to an aspect of the invention, a transmission destination specifying unit that transmits a first signal that is specified as a transmission destination of image data to a display device, and a second that is transmitted when the display device receives the first signal. A terminal communication unit that receives image data and transmits image data to the display device in units of images; a control unit that controls to transmit image data to the display device in units of images according to the order in which the second signals are received; When the second signal is received, the control unit is transmitting the first image data to the predetermined display device, and the display device that has transmitted the second signal is the predetermined signal. An information processing apparatus is provided that controls to stop the transmission of the first image data and to transmit the second image data different from the first image data to a predetermined display device if the display device matches the display device. The

  According to another aspect of the invention, the first signal that is specified as the transmission destination of the image data is transmitted to the display device, the second signal transmitted from the display device that has received the first signal is received, The image data is transmitted to the display device in units of images according to the order in which the second signals are received. The transmission of the image data to the display device is performed when the transmission unit receives the first image data when the second signal is received. If the display device that is transmitting to the display device matches the predetermined display device, the transmission of the first image data is stopped, and the first image data different from the first image data is transmitted. An information processing method for transmitting the second image data to a predetermined display device is provided.

  According to the above aspect, in an information processing apparatus to which a plurality of display devices are connected, in an operation of displaying an arbitrary page of booklet data on each display device, input is performed in advance compared to displaying while confirming one screen at a time. As a result, the operation time can be shortened.

  Furthermore, by setting the second communication method standby in the specific signal receiving unit of the display device to a non-powered method, power consumption can be eliminated except during communication and drawing.

FIG. 1 is a diagram illustrating a configuration of an information processing apparatus (browsing system) according to an embodiment. FIG. 2 is a diagram illustrating a configuration of a page information storage position information table used by the scheduling unit. FIG. 3 is a diagram illustrating a configuration of a “page image data transmission destination” list. FIG. 4 is a diagram illustrating a configuration of a cholesteric liquid crystal display device used as the second display screen of the embodiment. FIG. 5 is a diagram illustrating a configuration of the specific signal receiving unit. FIG. 6 is a diagram illustrating a browsing operation in the information processing apparatus according to the embodiment. FIG. 7 is a diagram illustrating a display example in the information processing apparatus according to the embodiment. FIG. 8 is a flowchart illustrating processing in the information processing apparatus according to the embodiment. FIG. 9 is a flowchart illustrating processing in the information processing apparatus according to the embodiment. FIG. 10 is a flowchart illustrating processing in the information processing apparatus according to the embodiment.

  Embodiments of the present invention will be specifically described below with reference to the drawings.

  Embodiments will be described with reference to FIGS. 1 to 11.

  FIG. 1 is a diagram illustrating a configuration of an information processing apparatus (browsing system) according to an embodiment.

  The information processing apparatus according to the embodiment includes a terminal 10 such as a mobile phone and a plurality of display devices 30A to 30D. Although FIG. 1 shows an information processing apparatus having four display devices 30A to 30D, the number of display devices may be two, three, or five or more.

  The terminal 10 includes a first display screen 11, a first screen display unit 12, a booklet data storage unit 13, a booklet data selection unit 14, a page image generation unit 15, a terminal communication unit 16, and a transmission destination specifying unit. 17, a scheduling unit 18, and a public line communication unit 19.

  The display devices 30A to 30D have the same configuration, and are respectively a second display screen 31, a second screen display unit 32, a display device communication unit 35, a specific signal receiving unit 36, and a power control unit 37. And having. The second screen display unit 32 includes a display drive unit 33 and a page image reception buffer 34.

  The booklet data storage unit 13 stores booklet data composed of a plurality of pages. Here, one page is information that can be displayed on one screen of the second display screen 31, and the booklet data is data that is defined as a single unit composed of a plurality of pages. There is a PDF file. The booklet data storage unit 13 has a memory capable of storing one or more such booklet data. The booklet data stored in the booklet data storage unit 13 is supplied from the source of the electronic book by the public line communication unit 19, for example.

  The first display screen 11 is a relatively small and low-resolution screen and is not suitable for browsing electronic books. The first screen display unit 12 displays a list of one or more booklet data stored in the booklet data storage unit 13 on the first display screen 11. The list to be displayed may be information that can be displayed on the first display screen 11 including information for identifying booklet data such as a book name, an author name, and a file name. The booklet data whose list is displayed on the first display screen 11 is not limited to the booklet data stored in the booklet data storage unit 13, but is booklet data that can be obtained via the public line communication unit 19. Also good. In this case, information on the booklet data displayed in the list is obtained via the public line communication unit 19 and stored in the booklet data storage unit 13 and then displayed on the first display screen 11. If booklet data that is not stored in the booklet data storage unit 13 is selected, the booklet data is obtained via the public line communication unit 19 and stored in the booklet data storage unit 13. The page image data is transmitted to the display device.

  The booklet data selection unit 14 is a user interface that allows the user to select one of the booklet data as booklet data while viewing the first display screen 11 on which a list of booklet data is displayed. This user interface includes software that controls the operation unit of the terminal 10, the first display screen 11, the first screen display unit 12, and the like. For example, the booklet data displayed on the screen in a list format is displayed on the screen of the terminal 10. Select by pressing the key. The image of the selected booklet data is displayed on the display devices 30A to 30D.

  The page image generation unit 15 generates the page image data by converting the selected booklet data into an image for each page. The page image data represents one still image per page, and the image size of the still image is set to the screen resolution of the second display screen 31 so as to be displayed on the second display screen 31 of the display devices 30A to 30D. It is desirable to combine them.

  The terminal communication unit 16 transmits the page image data generated by the page image generation unit 15 to any one of the display device communication units 35 of the display devices 30A to 30D by the first communication method. The first communication method is preferably a non-directional wireless communication method such as Bluetooth (registered trademark) so that still image data can be transmitted regardless of the positional relationship between the terminal 10 and the display devices 30A to 30D.

  The transmission destination specifying unit 17 outputs a first signal for specifying a display device that is a counterpart to which page image data is transmitted by the first communication method, by the second communication method. Even when page image data is being communicated from the terminal communication unit 16 to the display device communication unit 35 by the first communication method or when power is not supplied to the display device communication unit 35, the terminal 10 and the display device 30A are connected. In order to associate ˜30D, communication is also possible in the second communication method. The second communication method may be any communication method as long as the transmission destination of the page image data can be specified. In this embodiment, since the display screen is specified by the action of bringing the positional relationship between the terminal 10 such as a mobile phone and the display devices 30A to 30D closer, a directional wireless communication method is desirable. The near field communication (NFC) system based on the above is used. The transmission destination specifying unit 17 outputs an electromagnetic wave from the antenna. The specific signal receiving unit 36 has an antenna that is tuned to the electromagnetic wave, and when the distance between the terminal 10 and the display devices 30A to 30D is within a predetermined range, the intensity of the electromagnetic wave received by the specific signal receiving unit 36 becomes a predetermined value or more. And generate a trigger. The display device provided with the specific signal receiving unit 36 that generated the trigger outputs a second signal indicating that it is the transmission destination from the display device communication unit 35 in response to the trigger. Hereinafter, the second signal is referred to as a confirmation signal. The terminal communication unit 16 receives this confirmation signal, specifies a display device as a transmission destination, and generates a specifying process.

  The scheduling unit 18 is realized as a part of a control unit that controls each unit of the terminal 10, and schedules the terminal communication unit 16 to transmit the page image data according to the generation order of the specific processing.

  FIG. 2 is a diagram illustrating a configuration of a page information storage position information table used by the scheduling unit 18. Since the booklet data is composed of a plurality of pages and is defined as one unit, there is a page context. Therefore, the position (address) in the memory where the information of page i (i = 1 to N, N = number of pages) is stored is managed by this table.

  Each time the distance between the terminal 10 and any of the display devices 30A to 30D is reduced, page switching (page feed) is automatically performed to display a continuous page on each display device. The scheduling unit 18 increases the page number to be processed by one.

  When the transmission destination specifying unit 17 specifies the transmission destination of the page image data by the second communication method, the scheduling unit 18 records the partner display device in the “transmission destination of page image data” list.

  FIG. 3 is a diagram illustrating a configuration of a “page image data transmission destination” list. When the transmission of the page image data of the Nth page from the terminal communication unit 16 to the display device communication unit 35 is completed by the first communication method, the recorded partner display device is deleted from the record. If a specific process to identify a new display device occurs before the transmission of page image data ends, the number of records in the “page image transfer destination” list will increase, but it will be recorded earlier in time. The page image data transmission process is digested in order from the “page image transfer destination”.

  Further, the scheduling unit 18 determines whether or not page image data is being transmitted from the terminal communication unit 16 to the display device communication unit 35 when the specific process occurs. It is determined whether the other party is transmitting image data. Since the transmission partner is identified by an operation of bringing the positional relationship between the terminal 10 and the display device closer, the second and subsequent partner identification processes are performed while page image data is being transmitted to one of the display devices. May occur. The new transmission destination may be the same as the display device that is transmitting the page image data. The fact that the display device that is transmitting the page image data is the same as the display device that is the new transmission destination means that the mobile phone is brought closer to the display device that has not finished drawing (display rewriting). In this embodiment, such an operation is determined as a cancel instruction from the user, and the transmission processing and drawing processing of the page image data being executed are stopped. The stop of the drawing process is to stop the voltage application process to the pixels of the second display screen 31.

  The public line communication unit 19 performs communication via a normal telephone line, a mobile phone line, or the like. The public line communication unit 19 is not a public line, but may perform communication via a LAN or the like.

  The second display screen 31 is a display device having a higher resolution than the first display screen 11 and has a large size. In the present embodiment, the second display screen 31 is a display device having a memory property called electronic paper, and consumes power when rewriting (drawing) the display. It can be maintained, but it takes about 5 to 8 seconds to draw one screen. Note that the display on the screen can be deleted, and the deletion can be performed in a short time. In the present embodiment, a color display element in which three cholesteric liquid crystal panels of blue, green and red having different reflection center wavelengths are stacked is used as the second display screen 31. However, the present invention is not limited to such a display element, and a monochrome display element and other display elements can be used.

  FIG. 4 is a diagram showing a configuration of a cholesteric liquid crystal display device used as the second display screen 31 of the present embodiment. The cholesteric liquid crystal display device includes a power supply 51, a booster 52, a voltage switch 53, a voltage stabilizer 54, a clock source 55, a frequency divider 56, a control circuit 57, a memory 58, and a common driver 61. A segment driver 62, and three cholesteric liquid crystal panels 63B, 63G, and 63R of blue, green, and red.

  The cholesteric liquid crystal panels 63B, 63G, and 63R are, for example, A4 size XGA specifications and have 1024 × 768 pixels. The power source 51 outputs a voltage of 3V to 5V, for example. The booster 52 boosts the input voltage from the power supply 51 to 36V to 40V by a regulator such as a DC-DC converter. The voltage switching unit 53 generates various voltages by resistance division or the like. The voltage stabilizing unit 54 stabilizes various voltages supplied from the voltage switching unit 53. The original oscillation clock unit 55 generates a basic clock that is a basic operation. The frequency divider 56 divides the basic clock to generate various clocks necessary for the operation described later. The control circuit 57 generates a control signal based on the basic clock, various clocks, and page image data stored in the memory 58 and supplies the control signal to the common driver 61 and the segment driver 62.

  The common driver 61 drives 768 scan lines, and the segment driver 62 drives 1024 data lines. Since the image data given to each pixel of RGB is different, the segment driver 62 drives each data line independently. The common driver 61 drives the RGB lines in common.

  Since cholesteric liquid crystal display devices are widely known, further explanation is omitted.

  The display drive unit 33 of the second screen display unit 32 corresponds to a portion excluding the memory 58 and the cholesteric liquid crystal panels 63B, 63G, and 63R in the cholesteric liquid crystal display device of FIG. The page image reception buffer 34 corresponds to the memory 58 of FIG. 4 and temporarily stores the page image data received by the display device communication unit 35. The display drive unit 33 draws an image corresponding to the page image data stored in the page image reception buffer 34 (memory 58) on the second display screen 31.

  The display device communication unit 35 receives page image data transmitted from the terminal communication unit 16 by the first communication method and stores the page image data in the page image reception buffer 34. Accordingly, the display device communication unit 35 functions as an image data receiving unit.

  The specific signal receiving unit 36 receives the first signal output from the transmission destination specifying unit 17 of the terminal 10 by the second communication method and has a high reception strength, that is, when the terminal 10 and the display device are brought close to each other. Generate a trigger.

  5A and 5B are diagrams showing the configuration of the specific signal receiving unit 36, where FIG. 5A shows a circuit configuration and FIG. 5B shows an arrangement in a display device.

  As shown in FIG. 5A, the specific signal receiving unit 36 includes an antenna 71, a circuit including a transistor Tr and a resistor. The antenna 71 is a spiral copper wire pattern, and generates a voltage signal in synchronization with the electromagnetic wave output from the transmission destination specifying unit 17. One end of the antenna 71 is connected to the ground GND, and the other end is connected to the base of the transistor Tr. When the intensity of the electromagnetic wave received by the antenna 71 is small, the base potential is in the vicinity of GND, Tr is in the off state, and the trigger is High.

  When the distance between the transmission destination specifying unit 17 and the specific signal receiving unit 36 of the terminal 10 decreases, the intensity of the electromagnetic wave received by the antenna 71 increases, the voltage of the generated voltage signal increases, and Tr is in the on state. , The trigger changes to Low. This generates a trigger. The display device communication unit 35 transmits a confirmation signal indicating the transmission destination to the terminal communication unit 16 in response to the trigger. As described above, the transmission destination can be specified by the action of reducing the distance between the terminal 10 and the display devices 30A to 30D so as to be small.

  The antenna 71 of the specific signal receiving unit 36 may be provided in the central portion A on the back surface of the second display screen 31 as shown in FIG. Thereby, the area of the antenna 71 can be increased.

  The display devices 30A to 30D each have an independent power source provided. Since the second display screen 31 has a memory property, power is not required except during drawing (rewriting) driving. Further, the display device communication unit 35 does not need to be operating until a trigger is generated. Therefore, the power control unit 37 has an electrical switch so as to suppress power consumption so that power can be supplied to the second screen display unit 32 and the display device communication unit 35 only when necessary.

  Further, as described above, the second display screen 31 can erase the screen display in a short time. The second screen display unit 32 uses an operation to immediately turn off the display as an operation to immediately notify the user whether or not a trigger has occurred as a result of bringing the display device closer to the terminal 10. Even if nothing is originally displayed, when the operation of the erasing means is executed, a change occurs such that the screen becomes dark at the moment when voltage is applied.

  FIG. 6 is a diagram illustrating a browsing operation in the information processing apparatus according to the embodiment.

  The user operates the operation units 22 </ b> A and 22 </ b> B of the terminal 10 to display a list of booklet data that can be browsed on the first display screen 11. The booklet data for displaying the list is not limited to the booklet data stored in the booklet data storage unit 13 but may be booklet data supplied from the source of the electronic book by the public line communication unit 19, for example. The list to be displayed includes information for identifying booklet data such as a book name, an author name, and a file name. While viewing the list of booklet data displayed on the first display screen 11, the user operates the operation units 22A and 22B to select the booklet data to be viewed. If the number of pages of the selected booklet data is within the number of display devices 30A to 30B (here, 4), the terminal 10 is brought closer to the display devices 30A to 30B in order, or conversely, the display devices 30A to 30B are moved to the terminal 10. Move closer. Thereby, the operation | work which designates the display apparatus which displays the number of pages for the number of display apparatuses can be performed. This is called collective designation by prior input.

  The pages of the booklet data are displayed on the display devices 30A to 30B in the order of the pages according to the order of the display devices 30A to 30B to be approached. If the number of pages of the booklet data is larger than the number of display devices 30A to 30B, the terminal 10 is brought closer to the display device displaying the page that has been browsed.

  In the information processing apparatus according to the embodiment, the time required for transmitting the page image data and the drawing (rewriting) time on the second display screen 31 are long. However, after the first page is drawn, the user selects the first page. While browsing, since the second and subsequent pages are automatically performed, the user is not kept waiting.

  In the information processing apparatus of the embodiment, the user sets the display device for displaying pages and the page order by the operation of bringing the mobile phone closer to the display devices 30A to 30D. The time required for this is one second or less. Using this specific process as a trigger, page image data is transmitted from the terminal 10 to one of the display devices, and the image is drawn. Since this operation is automatically processed, the user performs transmission processing and drawing on the display device. During the processing, it is possible to work to bring the terminal 10 closer to another display device.

  For example, when the page image data transmission processing for the display device 30A is completed, the page image data of the next page is immediately transmitted to the display device 30B, and the page image data of the next page is further transmitted to the display device 30C. The display device that has received the page image data immediately performs drawing processing.

  FIG. 7 is a diagram illustrating a display example in the information processing apparatus according to the embodiment. When the booklet data to be browsed is selected, the page of the selected booklet data is displayed on the first display screen 11 of the terminal 10. As described above, since the first display screen 11 does not have sufficient resolution, it is not suitable for viewing a booklet data page. FIG. 7 shows a case where the first to third pages of the booklet data are displayed on the display devices 30A to 30C.

  In addition, the previous drawing designation is skipped by bringing the same display device as the terminal 10 continuously close until the page image data transmission is completed. As a result, even when the pages are discontinuous, it is possible to perform batch designation by prior input.

  Furthermore, when the terminal 10 is brought close to the display device, it may be difficult to confirm whether the transmission destination is specified. Therefore, when the specific signal receiving unit 36 generates a trigger, the display on the second display screen 31 of the display device is deleted to notify the user that the trigger has been applied.

  8 to 10 are flowcharts illustrating processing in the information processing apparatus according to the embodiment.

  In S <b> 11, the power control unit 37 stops power supply to the display device communication unit 35 and the second screen display unit 32.

  In S <b> 12, the first screen display unit 12 reads a list of booklet data stored in the booklet data storage unit 13 and displays it on the first display screen 11. As described above, the booklet data available via the public line other than the booklet data stored in the booklet data storage unit 13 may be displayed.

  In S13, the operation units 22A and 22B determine whether or not an operation for selecting one book from the list of booklet data by the user has been received. If not, the operation units 22A and 22B stand by. If received, the process proceeds to S14.

  In S <b> 14, the first screen display unit 12 generates image data corresponding to the cover of the booklet data selected in S <b> 13 from the booklet data and displays it on the first display screen 11. Thereby, the user can confirm the selected booklet data.

  In S15, the part that controls the image generation and transmission of the terminal 10 places the processing target page of the selected booklet as X, and sets X = 1 page immediately after selection.

  In S16, the transmission destination specifying unit 17 starts outputting a pulse electromagnetic field.

  In S17, when the specific signal receiving unit 36 detects the output of the pulse electromagnetic field output from the transmission destination specifying unit 17, the specific signal receiving unit 36 generates a trigger and proceeds to S18, and waits until the trigger is generated if it does not occur.

  In S <b> 18, the power supply control unit 37 starts to supply power to the second screen display unit 32 in the display device provided with the specific signal receiving unit 36 that has generated the trigger.

  In S <b> 19, the second screen display unit 32 deletes the display image on the second display screen 31.

  In S <b> 20, the power control unit 37 stops supplying power to the second screen display unit 32.

  In S <b> 21, the power supply control unit 37 starts supplying power to the display device communication unit 35.

  In S22, the display device communication unit 35 of the display device starts communication using the first communication method and performs a connection procedure. Accordingly, the terminal 10 detects a display device from which the communication is made, and generates a specifying process for specifying a transmission destination.

  In S23, the specified communication destination is added to the end of the queue table shown in FIG. If the queue is empty, the tail = head.

  In S24, if the specific process has already been interrupted during transmission of page image data with the same partner, the process proceeds to S25, and if not, the process proceeds to S31.

  In S25, the terminal communication unit 16 stops the transmission of the page image data being executed and disconnects the communication connection.

  In S26, it is considered that the transmission of the page image data has been completed, and the corresponding queue at the head of the queue is deleted.

  In S27, the second screen display unit 32 determines whether drawing on the second display screen 31 has been performed based on the page image data being transmitted, and if it has been performed, proceeds to S28. If not, the process proceeds to S41.

  In S28, the second screen display unit 32 stops the voltage application to the second display screen 31 and interrupts the drawing.

  In S31, it is determined whether or not a new specific process has occurred during transmission of page image data to another display device. If it is being transmitted to another display device, the process proceeds to S32 and is being transmitted to another display device. Otherwise, the process proceeds to S43.

  In S32, communication in the first communication method between the display device communication unit 35 and the terminal communication unit 16 of the display device that is the partner of the new specific process is disconnected, and the process proceeds to S41.

  In S41, the scheduling 18 determines whether or not the transmission order has arrived in the scheduling using the queue table, and waits until the order comes.

  In S42, communication is started to transmit page image data between the display device communication unit 35 and the terminal communication unit 16 of the display devices in order, and a connection procedure is performed.

  In S43, the page image generation unit 15 converts the processing target page X of the booklet data into an image, and generates page image data of the page X.

  In S44, the terminal communication unit 16 transmits the generated page image of the page X to the display device communication unit 35 of the display device using the first communication method.

  In S <b> 45, the display device communication unit 35 stores the received page image data in the page image reception buffer 34 of the second screen display unit 32.

  In S51, it is determined whether transmission of page image data from the terminal communication unit 16 to the display device communication unit 35 is completed. If completed, the process proceeds to S52, and if not completed, the process proceeds to S61.

  In S52, power supply to the display drive unit 33 of the second screen display unit 32 is started.

  In S <b> 53, the display drive unit 33 of the second screen display unit 32 draws the page image data stored in the page image reception buffer 34 on the second display screen 31.

  In S54, it is determined whether drawing has ended. If completed, the process proceeds to S56, and if not completed, the process proceeds to S55.

  In S55, the specific signal receiving unit 36 detects an electromagnetic wave generated by the second communication method from the transmission destination specifying unit 17 to determine whether a trigger is generated. If no trigger is generated, the process returns to S54, If it occurs, it is determined that drawing should be performed in the middle, and the process proceeds to S56.

  In S56, power supply to the display drive unit 33 of the second screen display unit 32 is stopped.

  In S61, the specific signal receiving unit 36 detects the electromagnetic wave by the second communication method from the transmission destination specifying unit 17 to determine whether a trigger is generated. If no trigger is generated, the process returns to S51, If it occurs, it is determined that transmission should be in the middle, and the process proceeds to S71.

  In S71, a procedure for disconnecting communication with the terminal communication unit 16 of the display device communication unit 35 of the display device is performed.

  In S72, power supply to the display device communication unit 35 of the display device is stopped.

  In S73, the scheduling unit 18 deletes the queue (first queue) in the queue table related to the display device that has disconnected communication in the first communication method.

  In S74, the page to be processed is paged by incrementing the number of pages X to be processed in the booklet data by one.

  In S75, as a result of the page turning operation, it is determined whether a page exceeding the last page of the booklet data has been processed, that is, whether all pages have been processed. If not, the process returns to S17. If completed, the process proceeds to S76.

  In S76, the pulse electromagnetic field output from the transmission destination specifying unit 17 of the terminal 10 is stopped.

  Although the information processing apparatus according to the embodiment has been described above, it goes without saying that various modifications are possible. For example, there may be a situation where the display device side continues to wait for its turn in the queue table due to an unexpected end in the middle of the process. It can cope with adding processing such as cancellation.

  Although the embodiment has been described above, all examples and conditions described herein are described for the purpose of helping understanding of the concept of the invention applied to the invention and the technology. It is not intended to limit the scope of the invention, and the construction of such examples in the specification does not indicate the advantages and disadvantages of the invention. Although embodiments of the invention have been described in detail, it should be understood that various changes, substitutions and modifications can be made without departing from the spirit and scope of the invention.

DESCRIPTION OF SYMBOLS 10 Terminal 11 1st display screen 12 1st screen display part 13 Booklet data storage part 14 Booklet data storage part 15 Page image generation part 16 Terminal communication part 17 Transmission destination specific | specification part 18 Scheduling part 30A-30D Display apparatus 31 2nd display screen 32 Second screen display unit 33 Display drive unit 34 Page image reception buffer 35 Display device communication unit 36 Specific signal reception unit 37 Power supply control unit

Claims (6)

A transmission destination specifying unit that transmits the first signal specified as the transmission destination of the image data to the display device;
A terminal communication unit that receives the second signal transmitted when the display device receives the first signal and transmits image data to the display device in units of images;
A control unit that controls to transmit the image data in units of images to the display device in accordance with the order in which the second signals are received;
Have
The controller is
When the second signal is received, the terminal communication unit is transmitting the first image data to a predetermined display device, and the display device that has transmitted the second signal is the predetermined display device. If they match, control is performed so that transmission of the first image data is stopped and second image data different from the first image data is transmitted to the predetermined display device. Processing equipment. The display device
An image data receiving unit for receiving the image data;
A display unit for displaying the received image data;
A specific signal receiving unit that receives the first signal and notifies the image data receiving unit of reception of the first signal;
With
2. The information according to claim 1, wherein the image data receiving unit transmits the second signal to the terminal communication unit when the reception of the first signal is notified from the specific signal receiving unit. Processing equipment. The display device
A power control unit that controls to supply power to the image data receiving unit when the image data receiving unit receives the image data, and controls to supply power to the display unit when driving the display unit The information processing apparatus according to claim 2, further comprising:   4. The information processing apparatus according to claim 2, wherein the display unit immediately deletes the displayed image when the signal receiving unit receives the first signal. 5. The first signal is an electromagnetic wave;
5. The specific signal receiving unit according to claim 2, wherein the specific signal receiving unit notifies the specific signal receiving unit of reception of the first signal when the first signal is received with an intensity of a predetermined value or more. The information processing apparatus according to any one of claims. A first signal that is specified as a transmission destination of the image data is transmitted to the display device;
Receiving a second signal transmitted from the display device that has received the first signal;
Transmitting the image data in image units to the display device according to the order in which the second signals are received;
The transmission of the image data to the display device is
When the second signal is received, the transmission unit is transmitting the first image data to a predetermined display device, and the display device that has transmitted the second signal is the predetermined display device. If they match, the information processing method is characterized in that transmission of the first image data is stopped, and second image data different from the first image data is transmitted to the predetermined display device.

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