JP2012159732A - Control device of braille display system and operation method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reproduce a next image part after braille corresponding to a telop of an image is read.SOLUTION: As shown in Figure 7(b), when a flag F is ON at time t3, that is, in such a situation that the braille reading speed of a user is low and the user finishes the braille reading at time t4 after the time t3, an image and a telop are stopped because the flag F is ON at the time t3. That is, at least a display of next telop and braille do not start until the image is reproduced again.

Description

  The present invention relates to a control device for a braille display system and an operation method thereof.

  Braille is an important medium for acquiring character information for visually impaired people. 2. Description of the Related Art Conventionally, there are techniques and devices for translating data on the web into braille (translation) and displaying it (Non-Patent Document 1).

  On the other hand, in broadcasting, there is a service that conveys the contents of a video to a visually impaired person by an audio guide. In this service, if there is audio of video (such as performers' conversation), the audio guide is not played so as not to overlap with this.

  On the other hand, there is a technique for displaying on a braille display such as a pin display instead of a voice guide. A braille display can be displayed at any time, regardless of the audio timing of the video.

  In Patent Document 1, the significance level of each word of a telop displayed together with a video is obtained, thereby controlling the presence / absence of the display of the telop, and the details of the telop according to the display capability of the telop and the understanding of the user. By changing the degree (number of characters), the telop is easy to read, and the same content as the telop can be displayed on the braille display.

Japanese Patent Laid-Open No. 10-039846

"Automatic Braille Translation Server", [online]: eBraille, [searched on January 13, 2011], Internet <URL: http://ebraille.med.kobe-u.ac.jp/>

  However, since it takes time to generate braille data for braille display, it is necessary to prepare this separately from the telop, and the telop that appears suddenly cannot be immediately converted to braille data, and its contents are not braille. It cannot be displayed on the display.

  Also, the time required to read the content displayed on the braille display depends on the reading proficiency level, etc., so it is not constant.If braille is displayed in synchronization with the telop in the video, the display may disappear before the content is read. is there.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a control device for a braille display system that reproduces a next video portion after a braille corresponding to a video telop is read. It is to provide.

  Another object of the present invention is to provide a control device for a braille display system that equalizes a playback speed set in advance when a braille corresponding to a video telop is displayed.

  Another object is to calculate the reproduction speed calculated from the number of characters of the Braille data generated from the telop and the reading speed at which the Braille is read when the Braille corresponding to the telop of the image is displayed. To provide a control device for a braille display system.

  In order to solve the above-mentioned problem, a first aspect of the present invention is a braille display having a display device used for reproducing a video and a braille display device used for displaying braille corresponding to a telop in the video. A Braille display system control device used in the system, a flag storage unit for storing a flag for controlling playback and stop of the video, and when playback of a portion including the video telop is started, Turn on the flag, generate braille data from the telop, send a telop end notification when playback of the portion including the video telop is completed, and braille data storage for storing the braille data And the braille data from the braille data storage unit, the braille data is transmitted to the braille display device, and the braille data is represented by the braille data. When the reading end signal indicating that the reading of Braille has been completed is received from the Braille display device, the Braille data transmission unit that turns off the flag, and the display device starts reproduction of the video, and the telop ends When the notification is sent, if the flag is ON, video playback is stopped. When the telop end notification is sent, the video playback unit restarts video playback when the flag is OFF and the video is stopped. And a Braille display system control device characterized by comprising:

  According to a second aspect of the present invention, there is provided a Braille display system used for a Braille display system having a display device used for reproducing a video and a Braille display device used for displaying Braille corresponding to a telop in the video. A playback speed storage unit that stores in advance a playback speed of a portion including the video telop, and sends a telop start notification when the playback of the portion including the video telop is started. From the Braille data generation unit that generates Braille data from the image and sends a telop end notification when playback of the portion including the telop of the video ends, the Braille data storage unit that stores the Braille data, and the Braille data storage unit A braille data transmission unit that reads braille data, transmits the braille data to the braille display device, and displays the braille by the braille data When the display device starts playing the video and the telop start notification is sent, the playback speed is read from the playback speed storage unit, the playback speed of the video is made equal to the playback speed, and the telop ends When the notification is sent out, the control means of the braille display system is provided with a video playback unit that makes the playback speed of the video equal to the original playback speed.

  According to a third aspect of the present invention, there is provided a Braille display system used in a Braille display system having a display device used for video reproduction and a Braille display device used for displaying Braille corresponding to a telop in the video. A control device, for each of the portions including the telop of the video, a time stamp given to the first frame of the portion of the video, and the number of characters of the braille data generated from the telop included in the portion of the video, The reproduction speed of the video portion calculated from the reading speed at which the braille display device reads the braille and the identification information indicating the braille data generated from the telop included in the video portion are stored in advance in association with each other. For each of the video speed telop, the Braille data generated from the telop, and the Braille data A braille data storage unit that is stored in advance in association with identification information indicating the data, a time stamp associated with each other from the reproduction speed storage unit, a reproduction speed, and the identification information are sequentially read out and includes the time stamp When the identification information is transmitted from the reproduction display control unit and the reproduction display control unit that transmits the reproduction speed and identification information at the timing at which the frame is actually reproduced, the identification information is associated with the identification information from the Braille data storage unit. Read the braille data, transmit the braille data to the braille display device and display the braille data by the braille data, and start playback of the video on the display device, from the playback display control unit And a video playback unit that makes the playback speed of the video equal to the playback speed when the playback speed is transmitted. And solutions with a control device of braille display system.

  For example, in the third aspect of the present invention, for each of a reading speed storage unit for storing the reading speed and a part including the telop of the video, a time stamp given to the first frame of the video part The first time stamp is generated, Braille data is generated from the telop, the Braille data and identification information indicating the Braille data are associated with each other and stored in the Braille data storage unit, and the video telop is stored. For each of the parts not included, a Braille data generation unit for sending a second time stamp that is a time stamp given to the first frame of the video part, and the first time stamp or the second time stamp When the first time stamp is sent out immediately before, the braille data stored most recently in the braille data storage unit is read out. The number of characters of the braille data is calculated, the reading speed is read from the reading speed storage unit, the reproduction speed is calculated based on the number of characters and the reading speed, and the first time stamp sent immediately before and the reproduction A playback speed calculation unit that stores the speed and the identification information associated with the braille data in association with each other.

  For example, in the third aspect of the present invention, the Braille data transmission unit reads Braille data from a Braille data storage unit in which Braille data for calculating the reading speed is stored when calculating the reading speed. The braille data is transmitted to the braille display device, the braille data is displayed by the braille data, a braille start notification is sent, and the braille display is received from the braille display device when a reading end signal indicating completion of reading of the braille is received. The control device calculates a reading time, which is a time from when the Braille start notification is sent to when the Braille end notification is sent, and the reading time is calculated based on the Braille data. A reading speed calculation unit is provided that divides by the number of characters and stores the obtained reading speed in the reading speed storage unit.

  According to a fourth aspect of the present invention, there is provided a Braille display system used in a Braille display system having a display device used for reproducing a video and a Braille display device used for displaying Braille corresponding to a telop in the video. The operation method of the control device, the Braille data generation unit of the control device is stored in a flag storage unit for controlling the playback and stop of the video when the playback of the portion including the video telop is started A step of generating Braille data from the telop, sending a telop end notification when reproduction of the portion including the telop of the video is completed, and a Braille data transmitting unit of the control device Is read out from the braille data storage unit, the braille data is transmitted to the braille display device, and the braille data is represented by the braille data. When the reading completion signal indicating that the reading of Braille has been completed is received from the Braille display device, the step of turning off the flag, and the video reproduction unit of the control device reproduce the video on the display device. When the telop end notification is sent, if the flag is ON, video playback is stopped. When the telop end notification is sent, the flag is OFF and the video playback is stopped. And a step of resuming the operation of the control device of the Braille display system.

  According to a fifth aspect of the present invention, there is provided a Braille display system used in a Braille display system having a display device used for reproducing a video and a Braille display device used for displaying Braille corresponding to a telop in the video. The operation method of the control device, wherein the Braille data generation unit of the control device sends a telop start notification when playback of the portion including the telop of the video is started, generates Braille data from the telop, A step of sending a telop end notification when reproduction of a portion including a video telop is completed, and a braille data transmission unit of the control device reads out the braille data from the braille data storage unit in which the braille data is stored, and the braille display Transmitting the braille data to the device and displaying the braille by the braille data; and a video reproduction unit of the control device includes the display device. When the telop start notification is sent out, the playback speed of the portion including the telop of the video is read from the playback speed storage unit in which the playback speed is stored in advance, and the playback speed of the video is set. And solving the problem with the operation method of the control device of the Braille display system, comprising the step of equalizing the playback speed and, when the telop end notification is transmitted, setting the playback speed of the video equal to the initial playback speed. Means.

  A sixth aspect of the present invention is a Braille display system used for a Braille display system having a display device used for video reproduction and a Braille display device used for displaying Braille corresponding to the telop in the video. An operation method of a control device, wherein the control device includes, for each portion including the video telop, a time stamp given to a first frame of the video portion and a telop included in the video portion. Identification indicating the playback speed of the video portion calculated from the number of characters of the generated braille data and the reading speed at which the braille display device reads the braille data, and the braille data generated from the telop included in the video portion Each of the video speed telop and the playback speed storage unit stored in advance in association with information is generated from the telop. Braille data and a braille data storage unit that stores the braille data and identification information indicating the braille data in association with each other, and the operation method includes the reproduction display control unit of the control device associated with each other from the reproduction speed storage unit. Sequentially reading out the given time stamp, reproduction speed, and identification information, and sending the reproduction speed and identification information at a timing at which a frame including the time stamp is actually reproduced, and Braille of the control device When identification information is sent from the reproduction display control unit, the data transmission unit reads the braille data associated with the identification information from the braille data storage unit, transmits the braille data to the braille display device, and transmits the braille data A step of displaying Braille according to data, and a video playback unit of the control device starts playback of the video on the display device, and When the playback speed from the display control unit is sent, and solutions with the operation method of the speed of reproduction of the video control device for Braille display system characterized in that it comprises a step of equal to the playback speed.

  According to the first and fourth aspects of the present invention, after the Braille corresponding to the video telop is read, the next video portion can be reproduced.

  According to the second and fifth aspects of the present invention, the speed of the video when braille corresponding to the video telop is displayed can be made equal to the preset playback speed.

  According to the third and sixth aspects of the present invention, the speed of the video when Braille corresponding to the video telop is displayed is calculated from the number of characters of the Braille data generated from the telop and the reading speed at which the Braille is read. It can be equal to the calculated playback speed.

1 is an external view of a braille display system according to a first embodiment. It is a block diagram which shows the structure of the control apparatus 1 in 1st Embodiment. 3 is a block diagram illustrating a configuration of a braille data generation unit 14. FIG. 5 is a flowchart showing the operation of the video playback unit 13. 4 is a flowchart showing the operation of a telop detection unit 143 of the braille data generation unit 14. 4 is a flowchart showing the operation of the braille data transmission unit 16. 5 is a timing chart showing flags F, video, telop, and Braille. It is a block diagram which shows the structure of 1 A of control apparatuses in 2nd Embodiment. It is a flowchart which shows operation | movement of 13 A of video reproduction parts. It is a flowchart which shows operation | movement of telop detection part 143A of Braille data generation part 14A. It is a flowchart which shows operation | movement of the braille data transmission part 16A. 3 is a timing chart showing video playback speed, telop, and Braille. It is a block diagram which shows the structure of the control apparatus 1B in 3rd Embodiment. It is a figure which shows the structure of the braille data storage part 15B. 3 is a diagram illustrating a configuration of a reproduction speed storage unit 21. FIG. It is a flowchart which shows the operation | movement before the image | video reproduction | regeneration of the Braille data transmission part 16B. 4 is a flowchart showing the operation of a reading speed calculation unit 18. It is a flowchart which shows operation | movement of the telop detection part 143B of the braille data generation part 14B. 6 is a diagram illustrating an operation of a reproduction speed calculation unit 20. FIG. 4 is a flowchart showing an operation of a reproduction display control unit 22. It is a flowchart which shows operation | movement of the video reproduction part 13B. It is a flowchart which shows the operation | movement at the time of the image | video reproduction | regeneration of the Braille data transmission part 16B. It is a timing chart showing video playback speed, telop, and braille

  Hereinafter, a braille display system according to an embodiment of the present invention will be described with reference to the drawings. In the following description, the same or partly the same reference numerals are given to components having the same or similar functions, and redundant description is omitted.

[First Embodiment]
First, the first embodiment will be described.

  FIG. 1 is an external view of a braille display system according to the first embodiment.

  The control device 1 is connected to the communication network N or the antenna AN, and the display device 2 is connected to the control device 1. The display device 2 reproduces a video such as a television program or a movie received by the control device 1 via the communication network N or the like.

  The control device 1 is connected to a pin display 3 that is a braille display device wirelessly (such as Bluetooth (Bluetooth)). The control device 1 and the pin display 3 may be connected by a wire so as to perform communication in accordance with a standard such as Universal Serial Bus.

  The pin display 3 is operated by the user U who is a visually handicapped person, and the braille display unit 31 that displays braille data generated from the telop in the video in braille, and the displayed braille is read. A reading end button 32 that is sometimes operated is provided.

  Here, the braille display unit 31 is the most representative Braille 6-braille display. However, for example, a plurality of pins may be arranged in a matrix.

  For example, the Braille display unit 31 can display a maximum of 7 Braille characters, and displays more Braille data in multiple times.

  The pin display 3 transmits a reading end signal to the control device 1 when the braille displayed on the braille display unit 31 is read and the reading end button 32 is operated.

  FIG. 2 is a block diagram illustrating a configuration of the control device 1 according to the first embodiment.

  The control device 1 includes a video receiving unit 11 that receives image data called a number of frames (hereinafter collectively referred to as video), a video storage unit 12 that stores video, a video playback unit 13 that plays back video, and a frame. Braille data generation unit 14 that generates Braille data from an image portion (hereinafter referred to as a telop) that means characters in the character, a Braille data storage unit 15 that stores Braille data, and a Braille data transmission instruction received from the Braille data generation unit 14 Then, a Braille data transmission unit 16 that reads out Braille data and transmits it to the pin display 3, and a flag storage unit 17 that stores a flag F for controlling reproduction and stop of the video are provided.

  Each storage unit includes a solid state device (SSD) that is a storage element using a hard disk or a semiconductor.

  The flag F is turned on (ON) when playback of a portion including a video telop is started, and is turned off (OFF) when a reading end signal is transmitted and there is no unsent Braille data.

  When the video playback unit 13 starts playback of video on the display device 2 and a telop end notification is transmitted from the braille data generation unit 14, if the flag F is ON, the video playback unit 13 stops playback of the video and a telop end notification is transmitted. If the flag F is OFF and the video is stopped, video playback is resumed.

  FIG. 3 is a block diagram illustrating a configuration of the braille data generation unit 14.

  The braille data generation unit 14 is a frame reading unit 141 that reads a video frame from the video storage unit 12, a frame storage unit 142 that stores a frame, and a telop that reads a frame in response to a telop detection instruction from the frame reading unit 141 and detects a telop. The frame is read by the character data generation instruction from the detection unit 143 and the telop detection unit 143, the character data generation unit 144 generates character data from the telop in the frame, and the braille data is transmitted from the character data transmitted from the character data generation unit 144. A Braille data generation unit 145 that generates and stores the Braille data storage unit 15 and transmits a Braille data transmission instruction to the Braille data transmission unit 16 is provided.

  FIG. 4 is a flowchart showing the operation of the video playback unit 13.

  The video playback unit 13 starts playback from the top of the video on the display device 2 at a playback speed suitable for the video (hereinafter referred to as 30 [frames / second]) (S1), and notifies the end of the telop from the Braille data generation unit 14 Is received (S3: YES), the flag F is determined (S5). Note that 30 [frames / second] is an example, and the same applies to other embodiments.

  If the flag F is ON, the video playback unit 13 stops video playback (S7), and returns to S5. If the flag F is OFF and video playback is in progress (S9: during playback), the video playback unit 13 returns to S3 and video is stopped. If (S9: Stopped), video playback is resumed (S10), and the process returns to S3.

  FIG. 5 is a flowchart showing the operation of the telop detection unit 143 of the Braille data generation unit 14.

  Before the description of FIG. 5, when the video is reproduced, the frame reading unit 141 first reads the first frame of the video, stores it in the frame storage unit 142, transmits a telop detection instruction to the telop detection unit 143, Thereafter, during the video reproduction, the frame being reproduced is read in accordance with the frame readout instruction, replaced with the frame in the frame storage unit 142, and the telop detection instruction is transmitted.

  In FIG. 5, when a telop detection instruction is transmitted, the telop detection unit 143 determines that the frame (referred to as a target frame) in the frame storage unit 142 is the first frame and has a telop, or the frame immediately before the target frame. If there is no telop and there is a telop in the target frame (S11: Start telop), the flag F is turned ON (S13), a character data generation instruction is transmitted to the character data generation unit 144 (S15), and the process returns to S11.

  An algorithm for detecting a telop is described in, for example, Japanese Patent Laid-Open No. 10-40391.

  If the position of the telop is notified together with the character data generation instruction, the accuracy and speed of generating character data from the telop can be improved.

  The telop detection unit 143 transmits a telop end notification to the video reproduction unit 13 (S17) when the telop is present in the immediately preceding frame and there is no telop in the target frame (S11: telop end), and the frame reading unit 141 is instructed to read out the frame. Is transmitted (S19), and the process returns to S11.

  The telop detection unit 143 transmits a frame reading instruction to the frame reading unit 141 when the target frame is the first frame and there is no telop, or when there is a telop in the target frame and the immediately preceding frame (S11: no change in state). (S19), the process returns to S11.

  5, when receiving the character data generation instruction, the character data generation unit 144 generates character data (text data) from the frame telop (that is, the image at the position of the telop) in the frame storage unit 142, and generates braille data. The frame read instruction is transmitted to the frame reading unit 141.

  A character recognition algorithm used for generating character data is described in, for example, Japanese Patent Application Laid-Open No. 2006-251920.

  The braille data generation unit 145 generates braille data from the character data, stores it in the braille data storage unit 15, and transmits a braille data transmission instruction to the braille data transmission unit 16.

  For the braille translation algorithm used to generate braille data from character data, for example, Information Processing Society of Japan Research Report. Natural Language Processing Study Group Report 2008 (33), 55-60, 2008-03-27 “Automatic Braille Translation Server eBraille It is described in "Optimization of IPADIC for improvement of medical document braille translation system".

  The character data consists of the same number of characters as the number of characters in the telop. Since the braille data is a so-called translated character data, the number of characters is not necessarily equal.

  FIG. 6 is a flowchart showing the operation of the braille data transmission unit 16.

  When receiving the braille data transmission instruction (S21: YES), the braille data transmission unit 16 reads the latest braille data portion from the braille data storage unit 15 up to the number of characters that can be displayed on the braille display unit 31. Then, the data is transmitted to the pin display 3 and displayed on the braille display unit 31 (S23).

  Next, when the braille data transmitting unit 16 receives the reading end signal (S25: YES), if untransmitted braille data remains (S27: present), the process returns to S23.

  If there is no untransmitted braille data remaining (S27: none), the braille data transmission unit 16 notifies the pin display 3 to erase the braille data displayed on the braille display unit 31 (S29), and the flag F is turned OFF (S31), and the process returns to S21.

  FIG. 7 is a timing chart showing the flag F, video, telop, and Braille.

  As shown in FIG. 7A, when a telop is detected, the flag F is turned ON and display of braille starts. If the first reading end signal is transmitted at time t1 and the second reading end signal is transmitted at time t2, and there is no unsent Braille data, the flag F is turned OFF.

  When the telop end notification is transmitted at the subsequent time t3, the flag F is OFF, so that the video is continuously played without being stopped.

  On the other hand, as shown in FIG. 7B, if the flag F is ON at time t3, that is, the reading speed of the braille by the user is slow, and the user finishes reading the braille at time t4 after time t3. In such a situation, since the flag F is ON at time t3, the video and the telop are stopped. In other words, at least the next telop and braille display will not start until the video is replayed.

  Therefore, the user can read the displayed braille with a margin. In this case, when the flag F is turned OFF at time t4 and the OFF flag F is detected, the video is reproduced again.

  Therefore, according to the first embodiment, the control device 1 starts the reproduction of the part including the flag storage unit 17 in which the flag F for controlling reproduction and stop of the video is stored, and the video telop. After that, the flag F is turned ON, Braille data is generated from the telop, and when playback of the portion including the video telop is finished, the Braille data generation unit 14 that sends a telop end notification, and the Braille data in which the Braille data is stored The Braille data is read from the storage unit 15 and the Braille data storage unit 15, the Braille data is transmitted to the Braille display device (3), the Braille data is displayed by the Braille data, and the Braille reading from the Braille display device is completed. Is received, a Braille data transmission unit 16 that turns off the flag F and the display device 2 start playing the video, and a telop end notification is sent. If the flag F is ON, the video playback is stopped. If a telop end notification is sent, the flag F is OFF. If the video is stopped, the video playback unit 13 restarts the video playback. Therefore, after the Braille corresponding to the video telop is read, the next video portion is reproduced, so that the Braille can be read with a margin.

[Second Embodiment]
Next, a second embodiment will be described.

  The external appearance of the braille display system according to the second embodiment is the same as in FIG.

  FIG. 8 is a block diagram showing the configuration of the control device 1 (hereinafter referred to as control device 1A) in the second embodiment.

  When receiving the video reception unit 11, the video storage unit 12, and the telop start notification, the control device 1A reads the previously stored playback speed, equalizes the video playback speed to the playback speed, and receives the telop end notification. The video playback unit 13A that makes the video playback speed equal to 30 [frames / second] generates Braille data, and when playback of the part including the video telop is started, a telop start notification is transmitted to the video playback unit 13A. When the playback of the portion including the video telop is completed, the braille data generation unit 14A that transmits the telop end notification to the video playback unit 13A, the braille data storage unit 15, and the operation of the flag that is not used in the second embodiment. First, when a Braille data transmission instruction is received from the Braille data generation unit 14, the Braille data transmission unit 16 </ b> A reads out the Braille data and transmits it to the pin display 3. Comprising a reproducing speed storage unit 17A that the playback speed to be transmitted from the remote controller 4 used to set the playback speed is stored.

  The remote controller 4 presents a normal playback speed as “normal”, a slightly slower playback speed as “slightly slower”, a slower playback speed as “slow”, etc. by voice, or Braille corresponding to each display content. If the user selects “Normal”, the playback speed is 30 [frame / second]. If the user selects “Slightly slow”, for example, the playback speed is 23 [frame / second], and the user selects “Slow”. When selected, for example, a playback speed of 20 [frame / second] is transmitted to the control device 1A, and the transmitted playback speed is stored in the playback speed storage unit 17A.

  Note that the playback speed candidates may be presented in five stages instead of in three stages, and the number thereof is arbitrary. Alternatively, the playback speed N [frames / second] may be directly specified by pressing a number button on the remote controller.

  FIG. 9 is a flowchart showing the operation of the video playback unit 13A.

  The video playback unit 13A starts playback of the video at 30 [frames / second] from the top on the display device 2 (S101), and receives a telop start notification from the Braille data generation unit 14A (S103: YES), stores the playback speed. The playback speed is read from the unit 17A (S105), and the video playback speed is made equal to the playback speed (S107).

  Next, when the video playback unit 13A receives the telop end notification from the Braille data generation unit 14A (S109: YES), the video playback speed is equal to the initial playback speed of 30 [frames / second] (S111). Return to S103.

  FIG. 10 is a flowchart showing the operation of the telop detection unit 143 (hereinafter referred to as telop detection unit 143A) of the Braille data generation unit 14A.

  Prior to the description of FIG. 10, as in the first embodiment, the frame readout unit 141 sequentially reads out frames in response to a frame readout instruction during video reproduction, and replaces the frames with the frames in the frame storage unit 142. A telop detection instruction is transmitted to the detection unit 143A.

  In FIG. 10, when the telop detection instruction is transmitted, the telop detection unit 143A determines that the frame (referred to as the target frame) in the frame storage unit 142 is the first frame and there is a telop, or the frame immediately before the target frame. When there is no telop and there is a telop in the target frame (S11: Start telop), a telop start notification is transmitted to the video reproduction unit 13A (S13A), a character data generation instruction is transmitted to the character data generation unit 144 (S15), and S11 Return to.

  The telop detection unit 143A transmits a telop end notification to the video reproduction unit 13A (S17) when a telop is present in the immediately preceding frame and no telop exists in the target frame (S11: telop end), and a frame read instruction is sent to the frame reading unit 141. Is transmitted (S19), and the process returns to S11.

  The telop detection unit 143A transmits a frame reading instruction to the frame reading unit 141 when the target frame is the first frame and there is no telop, or when there is a telop in the target frame and the immediately preceding frame (S11: no change in state). (S19), the process returns to S11.

  As shown in FIG. 10, when the character data generation unit 144 receives the character data generation instruction, the character data generation unit 144 generates character data (text data) from the frame telop of the frame storage unit 142, as in the first embodiment. The data is transmitted to the data generation unit 145, and a frame reading instruction is transmitted to the frame reading unit 141.

  The braille data generation unit 145 generates braille data from the character data, stores it in the braille data storage unit 15, and transmits a braille data transmission instruction to the braille data transmission unit 16A.

  FIG. 11 is a flowchart showing the operation of the braille data transmission unit 16A.

  When receiving the Braille data transmission instruction (S21: YES), the Braille data transmission unit 16A reads the latest Braille data portion from the Braille data storage unit 15 up to the number of characters that can be displayed on the Braille display unit 31. Then, the data is transmitted to the pin display 3 and displayed on the braille display unit 31 (S23).

  Next, when the braille data transmission unit 16A receives the reading end signal (S25: YES), if untransmitted braille data remains (S27: present), the process returns to S23.

  If there is no untransmitted braille data remaining (S27: none), the braille data transmission unit 16A notifies the pin display 3 to delete the braille data displayed on the braille display unit 31 (S29), S21 Return to.

  FIG. 12 is a timing chart showing video playback speed, telop, and Braille.

  As shown in FIG. 12, when a telop is detected and display of braille begins, a video is played at the playback speed read from the playback speed storage unit 17A, and for example, the playback speed is reduced. The telop that should end at t3 ends at time t5. That is, the display of the next telop and Braille does not start at least before time t5.

  Therefore, the user can read the displayed braille with a margin. In this case, the user finishes reading at time t4 between times t3 and t5, operates the reading end button 32, and deletes the braille.

  Therefore, according to the second embodiment, the control apparatus 1A starts the playback speed storage unit 17A in which the playback speed of the part including the video telop is stored in advance and the playback of the part including the video telop. Sends a telop start notification, generates braille data from the telop, and sends a telop end notification when playback of the portion including the video telop is completed, and braille data storage for storing the braille data Unit 15, a braille data transmission unit 16 A that reads the braille data from the braille data storage unit 15, transmits the braille data to the braille display device (3) and displays the braille by the braille data, and the display device 2 When playback is started and a telop start notification is sent, the playback speed is read from the playback speed storage unit 17A, and the playback speed of the video is When the telop end notification is sent, the video playback unit 13A for making the playback speed of the video equal to the original playback speed is provided, so that until reading of braille corresponding to the video telop is completed The portion of the video is played back at a playback speed of the playback speed storage unit 17A, for example, at a low speed, so that Braille can be read with a margin.

  Also, if you choose the appropriate playback speed, you can end the playback of the corresponding video part when you finish reading Braille, that is, the playback of the next video part starts before you finish reading Braille. It is possible to prevent the inconvenience that the playback of the next video portion does not start easily even after the reading or Braille has been read.

[Third Embodiment]
Next, a third embodiment will be described.

  The external appearance of the braille display system according to the third embodiment is the same as in FIG.

  FIG. 13 is a block diagram illustrating a configuration of the control device 1 (hereinafter referred to as a control device 1B) in the third embodiment.

  The control device 1B includes a video reception unit 11, a video storage unit 12, and a video playback unit that plays back video at a playback speed corresponding to the speed of reading Braille by the user (reading speed) and the number of characters in the Braille data when there is a telop. 13B, Braille data generation unit 14B that generates Braille data and sends a time stamp assigned to the first frame of a part with a video telop and a part without a video telop, and the Braille data identifies the Braille data Braille data storage unit 15B stored in association with information (hereinafter referred to as ID), Braille data storage unit 15C in which Braille data for measuring reading speed is stored in advance, Braille data storage units 15B, 15C A braille data transmitter 16B for reading data to the pin display 3 and a reading speed calculator 18 for calculating the reading speed. A reading speed storage unit 19 that stores reading speed, a reproduction speed calculation unit 20 that calculates a reading speed according to the reading speed and the number of characters of Braille data, a reproduction speed storage unit 21 that stores the reproduction speed, and a video reproduction of the reproduction speed A playback display control unit 22 that notifies the unit 13B to play the video and notifies the braille data transmission unit 16B of the ID to display the corresponding braille data.

  The braille data transmission unit 16B transmits to the reading speed calculation unit 18 a braille start notification and braille data indicating that the braille is to be displayed, and transmits a reading end notification indicating that the reading end signal has been received.

  The reproduction speed calculation unit 20 reads the braille data and the ID from the braille data storage unit 15B in order to calculate the reproduction speed.

  FIG. 14 is a diagram illustrating a configuration of the braille data storage unit 15B.

  In each Braille data storage unit 15B, for each video telop, the Braille data generated from the telop and an ID indicating the Braille data are stored in advance in association with each other.

  FIG. 15 is a diagram illustrating a configuration of the playback speed storage unit 21.

  The playback speed storage unit 21 includes, for each part including a video telop, a time stamp given to the first frame of the video part, a playback speed of the video part, and a telop included in the video part. The ID indicating the braille data generated from the image is stored in advance in association with the time stamp attached to the first frame of the video portion for a portion not including the video telop. In addition, 30 [frame / second], which is the reproduction speed of the video portion, is stored in advance in association with each other.

  FIG. 16 is a flowchart showing the operation of the braille data transmission unit 16B before the video reproduction.

  The Braille data transmitting unit 16B reads the Braille data from the Braille data storage unit 15C and displays the Braille data and the Braille start notification so as to display the Braille data for calculating the reading speed on the pin display 3 before reproducing the video. It transmits to the calculation part 18 (S71).

  Next, the braille data transmission unit 16B transmits the braille data to the pin display 3 and displays it on the braille display unit 31 (S73).

  Next, when the braille data is read and the reading end signal is received (S75: YES), the braille data transmission unit 16B transmits a reading end notification to the reading speed calculation unit 18 (S77), which is set in advance. If it has not been performed M times (S79: NO), the process returns to step S71, and if it has been performed M times (S79: YES), the process is terminated.

  FIG. 17 is a flowchart showing the operation of the reading speed calculation unit 18.

  If the reading speed calculation unit 18 receives the Braille start notification from the Braille data transmission unit 16B to calculate the reading speed based on the times of the Braille start notification and the reading end notification (S51: YES), the reading speed calculation unit 18 has its own timer. Is reset and started (S53), and if a reading end notification is received from the braille data transmitter 16B (S55: YES), the timer is stopped and the time of the timer is read, that is, the reading time is measured (S57). .

  If this measurement has not been performed M times in advance (S59: NO), the reading speed calculation unit 18 returns to step S51. If it has been performed M times (S59: YES), the reading speed calculation unit 18 calculates the M average reading time. The calculated reading speed is divided by the number of characters of the Braille data transmitted from the Braille data transmission unit 16B, and the obtained reading speed is stored in the reading speed storage unit 19 (S61), and the process is terminated.

  FIG. 18 is a flowchart showing the operation of the telop detection unit 143 (hereinafter referred to as the telop detection unit 143B) of the Braille data generation unit 14B.

  Before the description of FIG. 18, the frame reading unit 141 does not reproduce the video, but first reads the first frame of the video, stores it in the frame storage unit 142, and transmits a telop detection instruction to the telop detection unit 143B. Thereafter, no video is reproduced, but the frames are sequentially read in accordance with the frame reading instruction, replaced with the frames in the frame storage unit 142, and the telop detection instruction is transmitted.

  In FIG. 18, when a telop detection instruction is transmitted, the telop detection unit 143B determines that the frame (referred to as the target frame) in the frame storage unit 142 is the first frame and has a telop, or the telop in the previous frame If there is a different telop in the target frame, or if there is no telop in the previous frame and there is a telop in the target frame (S11: A), the time stamp (hereinafter referred to as time stamp TS1) given to the target frame is reproduced. It transmits to the speed calculation part 20 (S13B), transmits a character data generation instruction to the character data generation part 144 (S15), and returns to S11.

  When the target frame is the first frame and there is no telop, or when there is a telop in the immediately preceding frame and there is no telop in the target frame (S11: B), the telop detection unit 143B determines the time stamp ( Hereinafter, the time stamp TS0 is transmitted to the reproduction speed calculation unit 20 (S17B), a frame read instruction is transmitted to the frame read unit 141 (S19), and the process returns to S11.

  The telop detection unit 143B transmits a frame reading instruction to the frame reading unit 141 when there is no telop in the target frame and the previous frame, or when there is the same telop in the target frame and the previous frame (S11: C) ( S19), returning to S11.

  As shown in FIG. 18, when the character data generation unit 144 receives the character data generation instruction, the character data generation unit 144 generates character data (text data) from the frame telop of the frame storage unit 142, as in the first embodiment. The data is transmitted to the data generation unit 145 and a frame read instruction is transmitted to the frame read unit 141.

  The braille data generation unit 145 generates braille data from the character data and stores it in the braille data storage unit 15 in association with the ID.

  FIG. 19 is a diagram illustrating the operation of the playback speed calculation unit 20.

  The playback speed calculation unit 20 calculates the playback speed before video playback and stores the time stamp TS0 as shown in FIG. 19 to be stored in the playback speed storage unit 21, and the time stamp is transmitted before that. If not (case 1), the time stamp TS0 and the playback speed 30 [frame / second] are associated with each other and stored in the playback speed storage unit 21.

  If the time stamp TS1 is transmitted and the time stamp is not transmitted before that (case 2), the playback speed calculation unit 20 does not perform processing on the playback speed storage unit 21.

  When the time stamp TS1 is transmitted and the time stamp TS0 is transmitted immediately before (Case 3), the reproduction speed calculation unit 20 associates the time stamp TS0 with the reproduction speed 30 [frame / second] and reproduces the reproduction speed storage unit 21. Remember me.

  When the time stamp TS1 is transmitted and the time stamp TS1 is transmitted immediately before (Case 4), the reproduction speed calculation unit 20 calculates the former time stamp TS1 and the calculated reproduction speed (details will be described later) and the calculation. The playback speed storage unit 21 stores the ID associated with the Braille data used in the above.

  If the time stamp TS0 has been transmitted and the time stamp TS1 has been transmitted immediately before (Case 5), the reproduction speed calculation unit 20 uses the time stamp TS1 and the calculated reproduction speed (details will be described later) and uses the calculation. The reproduction speed storage unit 21 stores the ID associated with the received braille data in association with each other.

  The playback speed is calculated as follows.

  The reproduction speed calculation unit 20 first reads the braille data stored most recently in the braille data storage unit 15, calculates the number of characters N of the braille data, and reads the reading speed from the reading speed storage unit 19.

  Also, the playback speed calculation unit 20 calculates the transmission interval D of the time stamps of the former and the latter in cases 4 and 5, and if the transmission interval D is N / n or more, the playback speed is set to 30 [frame / second].

  On the other hand, if the transmission interval D is less than N / n, the playback speed is (30 [frames / second] × D × n) / N.

  For example, if the number of characters N = 10 [characters], the reading speed n = 5 [characters / second], and the transmission interval D = 3 [seconds], N / n = 10/5 = 2 [seconds] and D = 3 [ Since [second] is N / n = 2 [second] or more, the reproduction speed is 30 [frame / second].

  For example, if the number of characters N = 20 [characters], the reading speed n = 5 [characters / second], and the transmission interval D = 3 [seconds], N / n = 20/5 = 4 [seconds], and D = 3 [ Since [second] is less than N / n = 4 [second], the reproduction speed is as follows.

Playback speed = (30 [frame / second] × D × n) / N
= (30 [frame / second] × 3 [second] × 5 [character / second]) / 20 [character]
= 22.5 [frame / second]

  FIG. 20 is a flowchart showing the operation of the playback display control unit 22.

  When the reproduction speed is stored in the reproduction speed storage unit 21, the reproduction display control unit 22 reproduces the video and displays Braille as follows.

  In FIG. 20, the playback display control unit 22 transmits a playback start instruction to the video playback unit 13B (S91), and is associated with the oldest ID that has not yet been read from the playback speed storage unit 21 and the ID. The time stamp and the playback speed are read (S93), and at the timing when the frame of the time stamp is actually played back (S95: YES), the read playback speed is notified to the video playback unit 13B (S97), and the Braille data is transmitted. The read ID is transmitted to the unit 16B (S97), and the process returns to S93.

  FIG. 21 is a flowchart showing the operation of the video playback unit 13B.

  When a playback start instruction is transmitted from the playback display control unit 22 (S201: YES), the video playback unit 13B starts playback of the video from the top at a playback speed of 30 [frames / second] (S203), and the playback display control unit If the playback speed is notified from 22 (S205: YES), the video playback speed is made equal to the playback speed (S207), and the process returns to S205.

  FIG. 22 is a second flowchart illustrating the operation of the Braille data transmission unit 16B during video reproduction.

  When the ID is transmitted from the reproduction display control unit 22 (S21B: YES), the Braille data transmission unit 16B can display the Braille data storage unit 15B on the Braille display unit 31 from the Braille data associated with the ID. The latest Braille data portion is read out to the limit of the number of characters, transmitted to the pin display 3, and displayed on the Braille display unit 31 (S23).

  Next, when the braille data transmission unit 16B receives the reading end signal (S25: YES), if untransmitted braille data associated with the ID remains (S27: YES), the process returns to S23.

  If there is no untransmitted braille data remaining (S27: NO), the braille data transmission unit 16B notifies the pin display 3 to delete the braille data displayed on the braille display unit 31 (S29), S21. Return to.

  FIG. 23 is a timing chart showing video playback speed, telop, and Braille.

  As shown in FIG. 23, when a telop is detected and display of braille is started, a video is played back at a playback speed notified from the playback display control unit 22 to the video playback unit 13B. For example, the playback speed decreases, and thus The telop that should have ended at time t3 ends at time t5. That is, the display of the next telop and Braille does not start at least before time t5.

  Therefore, the user can read the displayed braille with a margin. In this case, the user finishes reading at time t4 between times t3 and t5, and operates the reading end button 32 to delete the braille.

  Also, as shown in FIG. 23, for example, when display of braille corresponding to a new telop starts at time t5, if the number of characters in the braille data is larger than the number of characters in the previous telop, The reproduction speed further decreases, and thus the telop that should have ended at time t6 ends at time t8. That is, the display of the next telop and Braille does not start at least before time t8.

  Therefore, regardless of the number of characters in the braille data, the user can read the displayed braille with a margin. In this case, the user finishes reading at time t7 between times t6 and t8, and operates the reading end button 32 to delete the braille.

  Therefore, according to the third embodiment, the control device 1B includes, for each part including a video telop, the time stamp given to the first frame of the video part and the video part. The playback speed of the video portion calculated from the number of characters of the braille data generated from the telop and the reading speed at which the braille display device (3) reads the braille, and the braille generated from the telop included in the video portion For each of the video telops, the playback speed storage unit 21 stored in advance in association with identification information indicating data, the braille data generated from the telop and the identification information (ID) indicating the braille data are associated with each other. The braille data storage unit 15B stored in advance, the time stamp associated with the playback speed storage unit 21, the playback speed, Other information is sequentially read out, and at the timing when the frame including the time stamp is actually reproduced, the reproduction display control unit 22 for transmitting the reproduction speed and identification information, and the identification information is transmitted from the reproduction display control unit 22. Then, the Braille data transmission unit 16B that reads the Braille data associated with the identification information from the Braille data storage unit 15B, transmits the Braille data to the Braille display device (3) and displays the Braille data by the Braille data, and the display When the playback of the video is started by the apparatus 2 and the playback speed is sent from the playback display control unit 22, the video playback unit 13B is set to make the playback speed of the video equal to the playback speed. Until the reading of Braille to be completed, the video portion is played back at a playback speed corresponding to the number of characters in Braille data and the reading speed. Often or reading speed is reproduced at a low speed A low. Therefore, when you finish reading Braille, you can end the playback of the corresponding video part, that is, prevent the inconvenience that the playback of the next video part starts before reading the Braille. Can do.

  As described above, according to each embodiment, even when braille reading on a pin display takes time, video playback is paused or playback speed is dynamically changed according to the reading time. By adding a function, it is possible to eliminate the fact that Braille cannot be read in accordance with the state of each user.

  Note that a computer program for causing a computer to function as the control device according to the present embodiment can be recorded on a computer-readable recording medium such as a semiconductor memory, a magnetic disk, an optical disk, a magneto-optical disk, or a magnetic tape, and the Internet. It can be widely distributed by being transmitted through a communication network such as

DESCRIPTION OF SYMBOLS 1, 1A, 1B ... Control apparatus 2 ... Display apparatus 3 ... Pin display (Braille display apparatus)
DESCRIPTION OF SYMBOLS 11 ... Video | video receiving part 12 ... Video | video memory | storage part 13, 13A, 13B ... Video | video reproduction | regeneration part 14, 14A, 14B ... Braille data generation part 15, 15B, 15C ... Braille data storage part 16, 16A, 16B ... Braille data transmission part 17 ... Flag storage unit 17A ... Playback speed storage unit 18 ... Reading speed calculation unit 19 ... Reading speed storage unit 20 ... Playback speed calculation unit 21 ... Playback speed storage unit 22 ... Playback display control unit 31 ... Braille display unit 32 ... Read end button DESCRIPTION OF SYMBOLS 141 ... Frame reading part 142 ... Frame memory | storage part 143, 143A, 143B ... Telop detection part 144 ... Character data generation part 145 ... Braille data generation part F ... Flag

Claims (9)

A control device for a braille display system used in a braille display system, comprising: a display device used for video playback; and a braille display device used for displaying braille corresponding to a telop in the video,
A flag storage unit for storing a flag for controlling reproduction and stop of the video;
When playback of the portion including the video telop is started, the flag is turned on, Braille data is generated from the telop, and when playback of the portion including the video telop is completed, the braille data is sent to notify the end of the telop A generator,
A braille data storage unit for storing the braille data;
Reading the braille data from the braille data storage unit, transmitting the braille data to the braille display device to display the braille data by the braille data, and a reading end signal indicating that reading of the braille is finished from the braille display device When received, a Braille data transmission unit that turns off the flag;
When the display device starts playing the video and the telop end notification is sent, if the flag is ON, video playback is stopped, and when the telop end notification is sent, the flag is OFF. And a Braille display system control device comprising: a video playback unit that restarts video playback when the video is stopped. A control device for a braille display system used in a braille display system, comprising: a display device used for video playback; and a braille display device used for displaying braille corresponding to a telop in the video,
A playback speed storage unit in which the playback speed of the portion including the video telop is stored in advance;
Braille data that sends a telop start notification when playback of the portion including the telop of the video is started, generates Braille data from the telop, and sends a telop end notification when playback of the portion including the telop of the video ends A generator,
A braille data storage unit for storing the braille data;
Read braille data from the braille data storage unit, send the braille data to the braille display device, and display the braille by the braille data, and
When the display device starts playing the video and the telop start notification is sent, the playback speed is read from the playback speed storage unit, the playback speed of the video is made equal to the playback speed, and the telop end notification is sent. A Braille display system control device, comprising: a video playback unit configured to set the playback speed of the video to be equal to the initial playback speed. A control device for a braille display system used in a braille display system, comprising: a display device used for video playback; and a braille display device used for displaying braille corresponding to a telop in the video,
For each portion including the video telop, the time stamp given to the first frame of the video portion, the number of characters of Braille data generated from the telop included in the video portion, and the braille display device A reproduction speed storage unit in which the reproduction speed of the portion of the video calculated from the reading speed at which the image is read and the identification information indicating the braille data generated from the telop included in the portion of the video are stored in advance in association with each other ,
For each telop of the video, braille data generated from the telop and the braille data storage unit that stores the identification information indicating the braille data in association with each other,
The time stamp, the reproduction speed, and the identification information that are associated with each other are sequentially read from the reproduction speed storage unit, and the reproduction speed and the identification information are transmitted at a timing at which a frame that includes the time stamp is actually reproduced. A playback display control unit;
When the identification information is sent from the reproduction display control unit, the Braille data associated with the identification information is read from the Braille data storage unit, the Braille data is transmitted to the Braille display device, and the Braille data is displayed by the Braille data. A braille data transmitter to be
Braille comprising: a video playback unit that starts playback of the video on the display device and, when a playback speed is transmitted from the playback display control unit, makes the playback speed of the video equal to the playback speed. Control device for display system. A reading speed storage unit for storing the reading speed;
For each part including the telop of the video, a first time stamp that is a time stamp assigned to the first frame of the video part is transmitted, and Braille data is generated from the telop. A second time stamp that is stored in the Braille data storage unit in association with identification information indicating the Braille data, and is a time stamp given to the first frame of the video portion for each portion that does not include the telop of the video A braille data generator that sends a time stamp of
When the first time stamp or the second time stamp is transmitted and the first time stamp is transmitted immediately before, the braille data stored most recently in the braille data storage unit is read, and the number of characters of the braille data is calculated. Calculate, read the reading speed from the reading speed storage unit, calculate the reproduction speed based on the number of characters and the reading speed, and associate the first time stamp, the reproduction speed, and the Braille data sent immediately before The Braille display system control device according to claim 3, further comprising: a reproduction speed calculation unit that associates the identified identification information with each other and stores the reproduction information in the reproduction speed storage unit. When calculating the reading speed, the Braille data transmission unit reads the Braille data from the Braille data storage unit in which the Braille data for calculating the reading speed is stored, and transmits the Braille data to the Braille display device. The braille data is displayed with the braille data and a braille start notification is sent out.When a reading end signal indicating that the reading of braille is finished is received from the braille display device, a braille end notification is sent out.
The controller is
A reading time which is a time from when the Braille start notification is sent to when the Braille end notification is sent is calculated, the reading time is divided by the number of characters of the Braille data, and the obtained reading speed is stored in the reading speed memory. The braille display system control device according to claim 4, further comprising: a reading speed calculation unit stored in the unit. An operation method of a control device for a Braille display system used in a Braille display system, comprising: a display device used for video playback; and a Braille display device used for Braille display corresponding to a telop in the video. And
When the Braille data generation unit of the control device starts playback of the portion including the video telop, the flag stored in the flag storage unit for controlling playback and stop of the video is turned ON, and the telop Generating braille data from the video, and sending a telop end notification when playback of the portion including the telop of the video is completed;
The Braille data transmission unit of the control device reads the Braille data from the Braille data storage unit in which the Braille data is stored, transmits the Braille data to the Braille display device, and displays the Braille data by the Braille data. When receiving a reading end signal indicating that reading of Braille has ended from the display device, turning off the flag;
When the video playback unit of the control device starts playback of the video on the display device and the telop end notification is sent, if the flag is ON, video playback is stopped and the telop end notification is sent out. If the flag is OFF and the video is stopped, the operation of the Braille display system control device is further provided. An operation method of a control device for a Braille display system used in a Braille display system, comprising: a display device used for video playback; and a Braille display device used for Braille display corresponding to a telop in the video. And
When the Braille data generation unit of the control device starts playback of the part including the video telop, it sends a telop start notification, generates Braille data from the telop, and playback of the part including the video telop is performed. A process of sending a telop end notification when finished,
A step of reading the braille data from the braille data storage unit storing the braille data, transmitting the braille data to the braille display device, and displaying the braille by the braille data;
When the video playback unit of the control device starts playback of the video on the display device and the telop start notification is sent, the playback speed of the part including the telop of the video is stored in advance from the playback speed storage unit Reading the playback speed, making the playback speed of the video equal to the playback speed, and sending the playback speed of the video to the initial playback speed when the telop end notification is sent. Operation method of the control device of the braille display system. An operation method of a control device for a Braille display system used in a Braille display system, comprising: a display device used for video playback; and a Braille display device used for Braille display corresponding to a telop in the video. And
The controller is
For each portion including the video telop, the time stamp given to the first frame of the video portion, the number of characters of Braille data generated from the telop included in the video portion, and the braille display device A reproduction speed storage unit in which the reproduction speed of the portion of the video calculated from the reading speed at which the image is read and the identification information indicating the braille data generated from the telop included in the portion of the video are stored in advance in association with each other ,
Each of the video telops includes braille data generated from the telops and a braille data storage unit stored in advance in association with identification information indicating the braille data, and the operation method includes:
The playback display control unit of the control device sequentially reads the time stamp, the playback speed, and the identification information associated with each other from the playback speed storage unit, and at the timing when the frame including the time stamp is actually played back. Sending the playback speed and identification information;
When identification information is sent from the reproduction display control unit, the Braille data transmission unit of the control device reads the Braille data associated with the identification information from the Braille data storage unit, and stores the Braille data in the Braille display device. Sending and displaying the braille by the braille data;
The video playback unit of the control device starts playback of the video on the display device, and when the playback speed is sent from the playback display control unit, the step of equalizing the playback speed of the video An operation method of a control device of a Braille display system, comprising:   The computer program for functioning a computer as a control apparatus of the braille display system in any one of Claims 1 thru | or 5.

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