JP5924579B2 - Viewpoint guidance device and electronic book terminal - Google Patents

Description

  The present invention includes a viewpoint guidance device that guides the viewpoint of a reader who browses an electronic book, and an electronic book terminal that incorporates this viewpoint guidance device.

  In recent years, the electronic book market has been activated along with market demands and higher functionality and lower prices of electronic components. Electronic books have the great advantage of being able to carry many books without being bulky and easily browse them anytime and anywhere. A user can start an electronic book viewer on various electronic book terminals such as a portable device or a PC that matches the data format of the electronic book, and can browse any electronic book regardless of location and time.

  As described above, since the electronic book is easy to carry, there are more opportunities to browse in an environment with much disturbance than when browsing an actual book. However, when browsing an e-book while walking or in a vehicle, the hand holding the e-book terminal is shaken, or the human gaze is more likely to deviate from the e-book terminal, so the distance between the eyes and the display screen varies. .

  In addition, electronic books are often viewed not only indoors but also outdoors, and the brightness of the surroundings changes greatly. The type of illumination light source can also be read under various light sources such as sunlight, fluorescent lamps, and incandescent lamps that have different loads on the eyes. In addition, depending on the type of electronic book terminal and the lifestyle of each user, there are various ways to browse, such as when browsing while sitting, browsing while standing, browsing when lying down, browsing quickly, or reading carefully. It is.

  For paper books, the printing mode of characters in each page is fixed and cannot be changed. For example, even when a person with weak eyesight reads, the size of the character cannot be changed. Until now, readers themselves have created an “environment that makes it easy to read characters printed on paper” because of the physical constraints of paper books. For example, it is not possible to read in the dark. For example, a reading light is provided to brighten the room, or characters are too small to read and glasses are put on.

  In contrast, e-books can essentially change the arrangement of characters, and general viewers have standard changes in display form such as character enlargement / reduction and background color change. .

  However, most current electronic book character layouts reproduce a typesetting of a completed paper book. In other words, even though the text size and background color can be changed, it is often the case that the text layout of the e-book itself cannot be changed intentionally, and the typesetting was based on the premise that the text layout can be changed dynamically. This technology is still developing.

JP 2009-301206 A

http://www.sokudoku.gr.jp/rapid/outline/

  In general, human vision perceives that all characters in the visual field are in focus as shown in FIG. 4, but in reality, only the central part of the visual field called the fovea has a high resolution. The resolution is low in the peripheral so-called peripheral visual field, and most of the peripheral visual field is visually recognized as shown in the figure. What is important here is that the high-resolution fovea has a narrow range, and the character cannot be recognized as a “character” in the peripheral vision with a low resolution. Therefore, in order to “read” a character, it is necessary to hit the character that wants to read the fovea.

  FIG. 5 is a diagram illustrating the viewpoint tracking result described in Non-Patent Document 1. The hatched portion in FIG. 5 is a place where the reader has not moved the fovea for a certain period of time, and this operation is referred to as “stop” in this specification. In addition, the movement from one stop location to the next stop location is referred to as a saccade in this specification. Readers can see that they are repeatedly stopping and saccade while reading.

  The important point here is that the human perspective is not "not all characters". This is because some humans recognize characters as characters during reading, distinguish between characters that should be recognized by some algorithm of the brain and characters that can be skipped, and characters that are skipped are also in the brain. Means that In other words, considering the efficiency of reading, characters that can be complemented by the brain should be skipped, and unnecessary stops and saccades should be suppressed as much as possible.

  FIG. 6 shows the reader's behavior during the stoppage. The reader is simultaneously performing (1) character recognition in the fovea and (2) searching for a place to move the fovea in the peripheral field of view (saccade destination search) while stationary. . This means that if a saccade destination cannot be found at a single stop, there will be many useless saccades where the target destination is searched little by little while placing the fovea on a character that does not need to be recognized. means.

  FIG. 7 shows an example in which wasteful saccades tend to occur frequently. In general documents, “line feed” is introduced in order to place characters on a limited page, and the character string is divided and dropped on the page. At this line break, it is necessary to jump the viewpoint from the end of the line to the beginning of the next line. That is, the reader first needs to recognize the “end of line” in the fovea, and then search for the “start of line” in the next line in the peripheral field of view and saccade to align the fovea with the start of the line. If the beginning of the line is not captured when the fovea is placed at the end of the line, there will be many useless saccades to find the line.

  Unlike electronic books, e-book readers can change the display format of text information and image information within each page relatively freely. In order to suppress this, the display form of character information and image information in each page is not changed.

  Patent Document 1 discloses a technique for suppressing the movement of the user's line of sight, but does not detect the user's viewpoint, and assumes that the user's viewpoint is placed at a specific position in the display screen. Therefore, even if the technique disclosed in Patent Document 1 is used, the above-described unauthorized stopping and saccade of the viewpoint cannot be suppressed.

  The present invention has been made to solve the above-mentioned problems, and is a viewpoint guidance that makes it easy to browse an electronic book without bothering the reader's hand by suppressing wasteful stopping and saccade of the reader's viewpoint. An apparatus and an electronic book terminal are provided.

In order to solve the above-described problem, in one aspect of the present invention, a viewpoint detection unit that detects a reader's viewpoint in a display screen that displays electronic book data;
A stop detection unit that detects that the viewpoint has stopped at an arbitrary place in the display screen for a predetermined time or more;
Of the character symbol number information and image information included in the electronic book data, a stop location candidate storage unit that stores character symbol number information and image information that the reader's viewpoint should stop for the predetermined time or more as a stop location candidate,
Based on the stop location candidate stored in the stop location candidate storage unit, the character / numeric information or image information of the stop location candidate to be stopped by moving the viewpoint next to the stop location detected by the stop detection unit A stop location candidate identifying unit that identifies
And a display form changing unit for changing the display form of the character / numeric information or image information of the specified stop location candidate.

In one embodiment of the present invention, a display device;
A sensor that can be used to detect the reader's viewpoint;
A communication unit capable of wireless communication with the server;
An input section for the reader to input various information;
A display control unit for displaying electronic book data on the display screen of the display device;
A viewpoint guidance device,
The viewpoint guidance device includes:
A viewpoint detector for detecting the viewpoint of the reader in the display screen of the display device;
A stop detection unit that detects that the viewpoint has stopped at an arbitrary place in the display screen for a predetermined time or more;
Of the character symbol number information and image information included in the electronic book data, a stop location candidate storage unit that stores character symbol number information and image information that the reader's viewpoint should stop for the predetermined time or more as a stop location candidate,
Based on the stop location candidate stored in the stop location candidate storage unit, the character / numeric information or image information of the stop location candidate to be stopped by moving the viewpoint next to the stop location detected by the stop detection unit A stop location candidate identifying unit that identifies
There is provided an electronic book terminal comprising: a display form changing unit that changes a display form of the character / numeric information or image information of the specified stop location candidate.

  According to the present invention, wasteful stopping and saccade from the reader's viewpoint can be suppressed, so that it is possible to easily browse an electronic book without bothering the reader.

The block diagram which shows schematic structure of the electronic book terminal 2 which incorporates the viewpoint guidance apparatus 1 which concerns on one Embodiment of this invention. The flowchart which shows the processing operation of the electronic book terminal 2 of FIG. (A), (b) and (c) is a figure which shows an example of the display form after a change. The figure which shows an example of a human visual field. The figure which shows the viewpoint tracking result described in the nonpatent literature 1. The figure which shows the action during a reader's stop. The figure which shows the example in which a useless saccade tends to occur frequently.

  Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 is a block diagram showing a schematic configuration of an electronic book terminal 2 incorporating a viewpoint guidance device 1 according to an embodiment of the present invention.

  When the electronic book terminal 2 in FIG. 1 is turned on, the electronic book data is updated by periodically communicating with the server 20 without being conscious of the user. It is also possible to communicate with the server 20 under the user's instruction to download or delete new electronic book data.

  The electronic book terminal 2 in FIG. 1 may be a dedicated terminal specialized for browsing electronic books, or may execute various application software (hereinafter referred to as applications) on a general-purpose OS (operating system). It may be an electronic device such as a PC, tablet, or smartphone. When an electronic device operating on a general-purpose OS is used as the electronic book terminal 2, an application that realizes the function of the electronic book viewer is started on the OS. When a PC is used as the electronic book terminal 2, the PC may be a portable PC or a stationary PC. Thus, the electronic book terminal 2 is not necessarily a portable electronic device.

  The electronic book terminal 2 of FIG. 1 includes a display device 3, a display control unit 4 that generates information to be displayed on the display screen of the display device 3, a sensor 5 that can be used to detect a reader's viewpoint, and a server 20. A communication unit 6 for performing wireless communication, an input unit 7 for a user to input various information, an operation analysis unit 8 for analyzing user input information based on information input to the input unit 7, and an electronic The electronic book storage part 9 which memorize | stores book data, the main controller 10 which controls each part in the electronic book terminal 2, and the viewpoint guidance apparatus 1 are provided.

  The main controller 10 performs control for communicating with the server 20 via the communication unit 6, control for transmitting an output signal from the sensor 5 to the viewpoint guidance device 1, and display control based on the output signal from the viewpoint guidance device 1. Processing for instructing the unit 4 to change the display screen is performed.

  The viewpoint guidance device 1 includes a viewpoint detection unit 11, a stop detection unit 12, an electronic book meta information storage unit 13, a stop location candidate specification unit 14, and a display form change unit 15.

  The viewpoint detection unit 11 detects the viewpoint of the user (hereinafter referred to as a reader) in the display screen based on the output signal of the sensor 5.

  The stop detection unit 12 detects that the reader's viewpoint has stopped at an arbitrary place in the display screen for a predetermined time or more. Since the general human character recognition time is said to be about 0.2 to 0.3 seconds, the above-mentioned predetermined time is also set to about 0.2 to 0.3 seconds, for example.

  The electronic book meta information storage unit 13 stores meta information attached to the electronic book data. The meta information includes various setting information for displaying the electronic book data, for example, the number of characters in the display screen, the number of lines, the font size, the font type, and character decoration information. In addition, the electronic book meta-information storage unit 13 stores a stop location candidate storage unit 16, an additional stop information storage unit 17, and a skip information storage unit 18 in order to store meta information related to the present embodiment. Have

  The stop location candidate storage unit 16 stores, as character stop location candidates, character symbol number information and image information that should be stopped by the reader's viewpoint for a predetermined time or more, out of the character symbol numeric information and image information included in the electronic book data. The stop location candidates stored in the stop location candidate storage unit 16 are information periodically transmitted from the server 20.

  Here, the character / symbol / numeric information refers to arbitrary characters, symbols, and numerals that can be displayed on the electronic book terminal 2, and refers to information that is converted into a general-purpose code such as an ASCII code. On the other hand, image information refers to information in various image formats that are not general-purpose coded, such as diagrams, tables, graphs, photographs, and illustrations.

  In the initial state, the server 20 performs linguistic analysis of electronic book data using a known algorithm, and identifies and identifies character / numeric information and image information that a general reader is expected to put a viewpoint on for a predetermined time or more. Each piece of information is stored in the stop location candidate storage unit 16 as a stop location candidate. In selecting a stop location candidate, not only the above-mentioned method by language analysis, but also a specific word (for example, a conjunction) is unconditionally selected as a stop location candidate, and repeated character strings and paragraphs are excluded from the stop location candidates. Arbitrary methods can be adopted, such as referring to the past history of individual readers, or changing the selection method of the stop location candidates according to the age and sex of the readers.

  As will be described later, the server 20 may update the stop location candidates stored in the stop location candidate storage unit 16 based on information periodically transmitted from the electronic book terminal 2. Thus, the stop location candidate storage unit 16 may have a learning effect.

  The additional stop information storage unit 17 stores, as stop location information, character / numeric information and image information whose viewpoints stop for a predetermined time or longer when the reader of the electronic book terminal 2 actually browses the electronic book. Character / numeric information and image information for which the reader stops the viewpoint for a predetermined time or more are different for each reader, and the viewpoint is not necessarily stopped at the stop location candidate stored in the stop location candidate storage unit 16 prepared in advance by the server 20. Not always. Therefore, in the present embodiment, the stop location information where the reader actually stops the viewpoint for a predetermined time or longer is stored in the additional stop information storage unit 17.

  The skip skip information storage unit 18 stores, as skip skip information, stop location candidates that the reader has stopped at the viewpoint for less than a predetermined time among the stop location candidates stored in the stop location candidate storage unit 16.

  The additional stop information storage unit 17 and the read skip information storage unit 18 store stop location information and read skip information, respectively, even if the reader does not perform a special input operation. Sent. The server 20 combines the stop location information and skip information sent from the electronic book terminal 2 with previously prepared stop location candidate information to generate new stop location candidate information, and periodically It transmits to the electronic book terminal 2.

  FIG. 2 is a flowchart showing the processing operation of the electronic book terminal 2 of FIG. This flowchart is started when the electronic book terminal 2 is turned on and the reader activates the electronic terminal viewer. While the electronic terminal viewer is activated, the sensor 5 continuously tracks the reader's viewpoint and detects the viewpoint. Various known methods are known as the method for detecting the viewpoint, and any method may be used.

  For example, in the corneal reflection method, the position of the viewpoint is detected using the difference in reflectance between the black eye and the white eye of the human eyeball. The sensor 5 used in the corneal reflection method has a light emitting element and a light receiving element, irradiates infrared light from the light emitting element to the reader's eyeball, and receives light reflected from the eyeball by the light receiving element. The black eye of the eyeball has a low reflectance, and the white eye has a high reflectance. For this reason, if two light receiving elements are provided in the horizontal (left and right) direction, when the black eye moves to the right light receiving element, the amount of reflected light received by the right light receiving element is the reflected light received by the left light receiving element. Less than the amount of light. Thereby, the movement of the eyeball in the left-right direction can be detected. Also, even when the eyeball moves up and down, the sum of the amount of reflected light of the two left and right light receiving elements increases or decreases due to the height difference between the light emitting element and the eyeball. It is possible to detect whether the eyeball has moved up or down.

  Using such a viewpoint detection mechanism, first, reflected light from the reader's eyeball is received by the two light receiving elements in the sensor 5 (step S1), and the eyeball moves up, down, left, and right according to the amount of received light. And the viewpoint position in the reader's display screen is detected from the detection result (step S2). More specifically, the viewpoint position is detected by specifying a coordinate position in the display screen of the display device 3.

  If the viewpoint detection method changes, the processing contents of steps S1 and S2 described above may also change. However, in the present embodiment, it is assumed that viewpoint detection is performed using a known method. The description of the viewpoint detection processing procedure by means of is omitted.

  In parallel with the viewpoint position detection process using the sensor 5, an electronic book display process by the electronic book viewer and a viewpoint guidance process by the viewpoint guidance device 1 are performed. The electronic book display process and the viewpoint guidance process are also continuously performed while the electronic book viewer is activated. The electronic book display process is a process performed by the main controller 10, while the viewpoint guidance process is a process performed by the viewpoint guidance device 1.

  In the electronic book display process, the electronic book data stored in the electronic book storage unit 9 and the attached information of the electronic book data stored in the electronic book meta information storage unit 13 are read (step S11). Based on this, the electronic book is displayed on the display device 3 (step S12).

  As described above, the electronic book data is composed of character / numeric information and image information. In the character / symbol / numeric information, the display form (font type, font size, presence / absence of highlighting, etc.) can be set and changed, and the display form (size etc.) of the image information can be changed. The setting information of the display form of the character symbol number information and the image information is described in the meta information stored in the electronic book meta information storage unit 13. Therefore, in step S12 described above, the display form of the character / numeric information and the image information in the electronic book data is set based on the meta information and displayed on the display device 3.

  If the reader's viewpoint is detected in step S2 while the electronic book data is being displayed on the display device 3, the viewpoint guidance process is activated. In the viewpoint guidance processing, first, based on the detection result of the viewpoint by the viewpoint detector 11, the coordinate position in the display screen corresponding to the current viewpoint is specified, and the character / numeric information or image information existing at the coordinate position is specified. Is specified (step S13). The processing in step S13 is performed by the stop location candidate specifying unit 14.

  Next, the stop detection unit 11 determines whether or not the viewpoint has stopped at the current position for a predetermined time or more (step S14). If the viewpoint has moved to the current position without stopping for a predetermined time or longer, the process returns to step S13.

  If the viewpoint stops at the current position for a predetermined time or longer, that position is regarded as the current stop position. Then, the stop position to be stopped next to the current stop position is specified from the stop place candidates stored in the stop place candidate storage section 16 in the electronic book meta information storage section 13, and the specified stop is specified. The display form of the position is changed (step S15). Thus, in step S15, the display form of the next stop position is changed. The display form changing unit 15 performs the process in step S15.

  The reason why the display form is changed in step S15 described above is to allow the reader to grasp the next movement destination of the viewpoint so that the reader does not hesitate, and various display forms can be considered.

  FIG. 3 is a diagram showing an example of the display form after the change. FIG. 3A shows an example of marking the character / numeric information and image information (hereinafter, the next stop position information) corresponding to the next stop position. In FIG. 3A, as a mark, a black dot mark is attached to the upper part of the next stop position information, but the display form of the mark is not limited. For example, it may be underlined or the next stop position information may be surrounded by a frame.

  FIG. 3B shows an example in which information other than the next stop position information in the display screen is intentionally made difficult to visually recognize, and the viewpoint is naturally directed to the next stop position information. FIG. 3B shows an example in which the next stop position information is a figure (image information). However, even when the next stop position information is character / numeric information, information other than the next stop position information is visually recognized. It may be difficult to do.

  Here, the specific method of making it difficult to visually recognize is not ask | required. In the case of FIG. 3B, an example is shown in which information other than the next stop position information is covered with semi-transparent hatching. However, in addition to this, the luminance may be reduced or a color that is difficult to be visually recognized (for example, background) (Color close to the color) may be displayed, or the character size may be reduced.

  FIG. 3C shows an example in which the display color of the next stop position information in the display screen is changed. In this case, the display color of the next stop position information is displayed in a color that is more conspicuous than the display color of other information (for example, a fluorescent color or a color that is clearly different from the background color), and the reader's viewpoint is lost. It is desirable to move to the next stop position information.

  As another display form, the next stop position information may be swung. If it is swung large and quickly, the reader may not be able to identify the contents of the next stop position information, and the viewpoint may be confused. It is desirable to swing the head so that it moves toward the next stop position information without hesitation.

  Alternatively, the next stop position information is displayed in italics or bold, the font size of the next stop position information is made larger than the font size of other stop position information, the font type of the next stop position information, etc. The font type of the stop position information may be changed.

  Further, various examples of the above-described display forms may be arbitrarily combined. For example, a mark may be attached to the next stop position information, the font size may be changed, and italic or bold may be used. Further, when the next stop position information is a figure (image information), not only is it difficult to visually recognize other information, but the figure size may be increased. Moreover, you may combine rocking | rocking and another display form.

  When the process of step S15 in FIG. 2 is completed, it is determined whether or not the viewpoint has approached the stop position where the reader's viewpoint should be stopped next (step S16). If not yet approaching, the process returns to step S15. On the other hand, if approached, that is, immediately after the viewpoint reaches the next stop position, or immediately before that, the display form of the next stop position changed in step S15 is restored. (Step S17). This is because if the reader moves the viewpoint to a new location, it is not necessary for the reader to grasp the location. Start preparing to change. The display form changing unit 15 performs the process in step S17.

  Then, the stop detection unit 12 determines whether the reader's viewpoint has stopped for a predetermined time or more (step S18). If the viewpoint does not stop for a predetermined time or longer, the process returns to step S15. On the other hand, if the viewpoint stops for a predetermined time or longer, the place is other than the stop place candidates stored in the stop place candidate storage unit 16. It is determined whether or not (step S19). If the stop location is other than the stop location candidate, information on the stop location is stored in the additional stop information storage unit 17 (step S20).

  When the stop location is one of the stop location candidates, or when the process of step S20 is completed, there is a location where the viewpoint has not stopped among the stop location candidates stored in the stop location candidate storage unit 16. It is determined whether or not (step S21). If there is a place where the viewpoint has not stopped, it is determined that the reader has skipped the place, and the stop position information is skipped and stored in the information storage unit 18 (step S22).

  When it is determined in step S21 that there is no place where the viewpoint has not stopped among the stop place candidates, or when the process of step S22 is completed, it is determined whether the viewpoint has moved to the end of the display screen. (Step S23) If it is not the last yet, return to Step S15, and if the viewpoint has moved to the end, return to Step S11 to display the electronic book data of the next page.

  As described above, in the present embodiment, the viewpoint of the reader who browses the electronic book on the electronic book terminal 2 is continuously tracked and the viewpoint is continuously detected, and the character / numeric information or the image information at the detected viewpoint position is detected. When the viewpoint stops for a predetermined time or longer, the information is regarded as a stop position, the next stop position where the viewpoint is to be moved next is specified after the stop position, and the display form of the specified next stop position information is displayed. change.

  As a result, the reader can quickly and easily grasp the stop position where the next viewpoint should be placed from the current stop position where the viewpoint has been placed for a predetermined time or more, so that the movement of the viewpoint will not occur and there will be no waste. Because unnecessary saccades do not occur, speed reading is possible.

  In the present embodiment, if the reader's viewpoint does not stop for a predetermined time or more in the character / numeric information or image information of the stop location candidate stored in the stop location candidate storage unit 16, it is determined that the reader skips reading. Thus, since the skip information storage unit 18 stores the information, the information stored in the skip information storage unit 18 can be used later. As an example of utilization, the character / symbol / number information or image information stored in the skip information storage unit 18 is determined to have been skipped because the reader is not important, and the corresponding information is deleted from the stop location candidate storage unit 16 as well. Then, it is conceivable to update the stop location candidate storage unit 16. Or, as another example of utilization, when the reader decides that he / she has unintentionally skipped without knowing its importance, and later performs a retrograde to move the viewpoint in the reverse direction, the skip information storage unit It is conceivable that the character / symbol / number information or the image information stored in 18 is presented to the reader in order so that the information skipped can be easily searched.

  Furthermore, in the present embodiment, when the reader's viewpoint is stopped for a predetermined time or more in the character / symbol / numeric information or the image information of the place that is not stored in the stop place candidate storage unit 16, the information should be used as the stop position. Since it is determined to be information and stored in the additional stop information storage unit 17, the information stored in the additional stop information storage unit 17 is added later to the stop location candidate storage unit 16, thereby storing the stop location candidate. The accuracy of the stop location candidates stored in the unit 16 can be improved.

  As described above, the skip information storage unit 18 and the additional stop information storage unit 17 can be used for the purpose of updating the stop location candidates stored in the stop location candidate storage unit 16. In the present embodiment, it is assumed that the stop location candidate storage unit 16 is updated by the server 20, and the information stored in the skip information storage unit 18 and the additional stop information storage unit 17 is periodically updated by the server. 20 is transmitted. The server 20 is based on the additional information of the skip information storage unit 18 and the additional stop information storage unit 17 that are individually sent from a large number of readers who browse the electronic book on the electronic book terminal 2. Update the stop location candidates stored in By updating the stop location candidates in consideration of the actual browsing situation of many readers, the learning effect of the stop location candidates can be enhanced, and more accurate stop location candidates can be provided to the reader.

  The additional information stored in the additional stop information storage unit 17 reflects the taste of each reader, and may be considered to have low versatility. In that case, as necessary, the server 20 manages the additional information stored in the additional stop information storage unit 17 separately for each reader, and adds the additional information of one reader to the stop location of another reader. You may make it not use for the update of a candidate.

  Note that the functions of the present embodiment may be limited to provide a simpler configuration. For example, at least one of the skip information storage unit 18 and the additional stop information storage unit 17 may be omitted. Thereby, although the learning effect of the stop location candidate memorize | stored in the stop location candidate memory | storage part 16 will fade, the process of the viewpoint guidance apparatus 1 and the server 20 can be reduced.

  At least a part of the viewpoint guidance device 1 and the electronic book terminal 2 described in the above-described embodiment may be configured by hardware or software. When configured by software, a program for realizing at least a part of the functions of the viewpoint guidance device 1 and the electronic book terminal 2 is stored in a recording medium such as a flexible disk or a CD-ROM, and is read and executed by a computer. Also good. The recording medium is not limited to a removable medium such as a magnetic disk or an optical disk, but may be a fixed recording medium such as a hard disk device or a memory.

  Further, a program for realizing at least a part of the functions of the viewpoint guidance device 1 and the electronic book terminal 2 may be distributed via a communication line (including wireless communication) such as the Internet. Further, the program may be distributed in a state where the program is encrypted, modulated or compressed, and stored in a recording medium via a wired line such as the Internet or a wireless line.

  The aspect of the present invention is not limited to the individual embodiments described above, and includes various modifications that can be conceived by those skilled in the art, and the effects of the present invention are not limited to the contents described above. That is, various additions, modifications, and partial deletions can be made without departing from the concept and spirit of the present invention derived from the contents defined in the claims and equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 Viewpoint guidance apparatus, 2 Electronic book terminal, 3 Display apparatus, 4 Display control part, 5 Sensor, 6 Communication part, 7 Input part, 8 Operation analysis part, 9 Electronic book memory | storage part, 10 Main controller, 11 Viewpoint detection part, 12 stop detection unit, 13 electronic book meta information storage unit, 14 stop location candidate specifying unit, 15 display form changing unit, 16 stop location candidate storage unit, 17 additional stop information storage unit, 18 skipping information storage unit, 20 server

Claims (14)

A viewpoint detection unit for detecting the viewpoint of the reader in the display screen for displaying the electronic book data;
A stop detection unit that detects that the viewpoint has stopped at an arbitrary place in the display screen for a predetermined time or more;
Among letter symbols numerical information and image information included in the electronic book data, the reader's point of view at least one of the retention location candidate letter symbols numerical information and image information located in the fovea, which is projected to dwell over the predetermined time A stop location candidate storage unit for storing as,
Based on the stored stationary location candidates to the retention location candidate storage unit, stopping place the viewpoint next to the detected stationary place by the stopping detection unit is located at the fovea, which is projected to stop moving A stop location candidate identifying unit that identifies at least one of the candidate character symbol number information and the image information;
And a display form changing unit that changes a display form of at least one of the character / numeric information and the image information of the specified stop location candidate. An additional stop information storage unit that stores at least one of character / numeric information and image information that is not stored in the stop location candidate storage unit and is located in the fovea where the reader's viewpoint is stopped for the predetermined time or more The viewpoint guidance device according to claim 1, wherein: A reading that stores at least one of the character / symbol / number information and the image information that the reader's viewpoint has stopped for less than a predetermined time among at least one of the character / numeric information and the image information stored in the stop location candidate storage unit. The viewpoint guidance device according to claim 1, further comprising a skip information storage unit. The stop location candidate stored in the stop location candidate storage unit is updated based on at least one of the character / numeric information and the image information stored in the additional stop information storage unit. The viewpoint guidance device described. The stop location candidate stored in the stop location candidate storage unit is updated on the basis of at least one of character symbol number information and image information stored in the skip information storage unit. The viewpoint guidance device described. The display form changing unit is configured to display at least one of the character / numeric information and the image information of the specified stop location instant at a moment when the reader's viewpoint moves to the specified stop location candidate or immediately before moving. The viewpoint guiding apparatus according to claim 1, wherein the viewpoint is restored. The viewpoint guiding apparatus according to claim 1, wherein the display form changing unit swings at least one of character / numeric information and image information of the stop location candidate. The viewpoint guiding apparatus according to claim 1, wherein the display form changing unit highlights at least one of character / numeric information and image information of the stop location candidate. 9. The viewpoint guiding apparatus according to claim 8, wherein the display form changing unit changes at least one of a character size and a character font when the stop location candidate includes character / symbol / numeric information. The said display form change part adds an underline, a surrounding frame, or a mark to this character symbol number information, when the said stop location candidate contains character symbol number information. Viewpoint guidance device. 11. The display mode changing unit according to claim 8, wherein, when the stop location candidate includes character / symbol / numeric information, the display / form changing unit displays the character / symbol / numeric information in at least one of an italic type and a bold type. The viewpoint guidance device described in 1. The display form changing unit makes it difficult to visually recognize at least one of the other character / symbol / number information and image information in the display screen as compared to at least one of the character / numeric information and image information of the stop location candidate. The viewpoint guidance device according to any one of claims 8 to 11, wherein the viewpoint guidance device is characterized. A display device;
A sensor that can be used to detect the reader's viewpoint;
A communication unit capable of wireless communication with the server;
An input section for the reader to input various information;
A display control unit for displaying electronic book data on the display screen of the display device;
A viewpoint guidance device,
The viewpoint guidance device includes:
A viewpoint detector for detecting the viewpoint of the reader in the display screen of the display device;
A stop detection unit that detects that the viewpoint has stopped at an arbitrary place in the display screen for a predetermined time or more;
Among letter symbols numerical information and image information included in the electronic book data, the reader's point of view at least one of the retention location candidate letter symbols numerical information and image information located in the fovea, which is projected to dwell over the predetermined time A stop location candidate storage unit for storing as,
Based on the stored stationary location candidates to the retention location candidate storage unit, stopping place the viewpoint next to the detected stationary place by the stopping detection unit is located at the fovea, which is projected to stop moving A stop location candidate identifying unit that identifies at least one of the candidate character symbol number information and the image information;
An electronic book terminal comprising: a display form changing unit that changes a display form of at least one of the character / numeric information and image information of the specified stop location candidate. It is not stored in the stop location candidate storage unit, and includes an additional stop information storage unit that stores at least one of letter symbol number information and image information located in the fovea where the reader's viewpoint is stopped for the predetermined time or more,
The electronic book terminal according to claim 13, wherein the communication unit transmits the character / symbol / number information and the image information stored in the additional stop information storage unit to a server.