JP2013073357A - Portable equipment, page switching method and page switching program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide portable equipment, a page switching method and a page switching program for performing the switching operation of a page with a natural sensation while preventing a page to be displayed on a screen from being erroneously switched.SOLUTION: The portable equipment having a screen for displaying content consisting of a plurality of pages includes: detection means for detecting the relative angle of inclination of the portable equipment to the portable equipment before a predetermined time by each predetermined time; operation means to be operated by a user; angle determination means for determining whether or not the angle of inclination detected by the detection means is equal to or more than a preliminarily set angle; operation determination means for determining whether or not an operation preliminarily set for the operation means has been performed; and switching means for, when it is determined that the angle of inclination is equal to or more than the set angle by the angle determination means, and it is determined that the preliminarily set operation has been performed by the operation determination means, switching a page to be displayed on the screen.

Description

  The present invention relates to a technical field of a portable device for browsing content and a method of switching a content page displayed on a screen of the portable device based on a user's operation.

  Conventionally, portable devices that display content such as electronic books are known. Such a portable device generally includes a touch panel. Then, for example, when the portable device displays content in units of pages and detects that a predetermined operation is performed on the touch panel, the portable device switches the page displayed on the screen.

  Japanese Patent Application Laid-Open No. 2004-228561 describes a technique for turning pages with a natural feeling in a display device that displays an electronic book or the like. Specifically, it is described that the display device switches pages in the same direction as the moving direction of the pointing object when the pointing object such as a finger or a pen moves to the right or left with respect to the touch panel.

  Patent Document 2 describes a technique for turning a page displayed on a computer display in response to an operation on a micro inertia sensing module such as a gravity mouse. Specifically, it is described that the page turning is performed when the micro inertial sensing module is in a state of being almost horizontally balanced and then the micro inertial sensing module is inclined by a specified inclination angle from the balanced state.

Japanese Patent Laid-Open No. 11-242539 JP 2008-152751 A

  However, the technique described in Patent Document 1 has a problem that user's erroneous operation is likely to occur, thereby causing a page to be switched erroneously. For example, when the user is in an environment where it is difficult to operate the touch panel, such as in a narrow place, the user may accidentally touch the touch panel or move the indicator by mistake.

  In addition, when the technique described in Patent Document 2 is applied to a portable device that displays content, there is a problem that a page switching operation is erroneously detected. This is because the mobile device is not necessarily held by the user in a state of being kept horizontal when the user browses the content. For example, when it is difficult for the user to keep the mobile device level, such as when the user is sleeping or in a narrow place, or when the user changes his / her posture while holding the mobile device, etc. The mobile device may erroneously detect a page switching operation.

  The present invention has been made in view of the above points, and a portable device and a page capable of performing a page switching operation with a natural feeling while preventing a page displayed on the screen from being erroneously switched. An object is to provide a switching method and a page switching program.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a portable device having a screen for displaying content composed of a plurality of pages, and the portable device with respect to the portable device before the predetermined time every predetermined time. Detection means for detecting a relative inclination angle of the device, operation means operated by a user, and an angle for determining whether or not the inclination angle detected by the detection means is equal to or larger than a preset set angle A determination means; an operation determination means for determining whether or not a preset operation has been performed on the operation means; and the angle determination means determines that the tilt angle is greater than or equal to the set angle; and And switching means for switching a page displayed on the screen when it is determined by the operation determining means that the preset operation has been performed.

  According to the present invention, since the page is switched under one of the conditions that the user relatively tilts the belt device, the page switching operation can be performed with a natural feeling. In addition, the page can be switched by performing two operations, that is, the user relatively tilting the mobile device for a predetermined time and performing a preset operation on the operation means, so that the page is displayed. It is possible to prevent a page to be changed from being erroneously switched.

  According to a second aspect of the present invention, in the portable device according to the first aspect, the detection unit is configured such that the portable device is tilted so that the screen faces in a turning direction in which the page can be turned with respect to the screen. The inclination angle is detected, and the switching means executes page switching in the turning direction, and when the angle determination means determines that the inclination angle is equal to or larger than the set angle, Control means for displaying an image representing a front edge on the opposite side of the turning direction from the center, and among the pages included in the content, the opposite side of the turning direction from the page displayed on the screen And a control unit that widens the width of the image to be displayed on the screen in the turning direction as the number of pages considered to be in the screen is larger.

  According to the present invention, since the front edge image indicating the number of pages in the direction opposite to the direction in which the portable device is tilted is displayed, the user can roughly grasp the remaining number of pages. .

  According to a third aspect of the present invention, in the portable device according to the first or second aspect, the detection unit is configured so that the screen is directed in a turning direction in which the page can be turned with respect to the screen. The switching means detects the tilt angle caused by the tilting of the page, and the switching means continuously executes switching of the pages displayed on the screen in the turning direction. After the page switching is started, the switching means When the tilt angle in the turning direction that is equal to or larger than a set angle is detected, a speed for continuously switching pages is made faster than a current speed.

  According to the present invention, pages can be continuously switched, and the user can continuously switch pages by further tilting the portable device in a direction in which the portable device is relatively tilted in order to switch pages. Can be faster.

  According to a fourth aspect of the present invention, in the portable device according to any one of the first to third aspects, the detection unit is configured so that the screen is directed in a turning direction in which the page can be turned with respect to the screen. Detecting the tilt angle caused by tilting the portable device and the tilt angle caused by tilting the portable device so that the screen faces in a direction opposite to the turning direction. When the tilt angle in the turning direction is detected, it is determined whether or not the tilt angle is equal to or larger than the set angle, and the switching unit is configured to turn the page displayed on the screen in the turning direction. After executing the switching continuously and starting the page switching, when the tilt angle in the reverse direction equal to or larger than the preset angle is detected by the detecting means, the page is continuously switched. Characterized in that it slower than the speed obtain speed at the present time.

  According to the present invention, it is possible to continuously switch pages, and the user can continuously switch pages by tilting the mobile device in a direction opposite to the direction in which the mobile device is relatively tilted in order to switch pages. Switching speed can be reduced.

  According to a fifth aspect of the present invention, in the mobile device according to any one of the first to fourth aspects, the operation means is a contact position when an object is in contact with the screen as an operation from a user. When the distance between the current contact position detected by the operation means and the contact position when the contact to the screen is started is greater than or equal to a preset distance, The operation with respect to the operation means is determined to be the preset operation, and the switching means continuously executes the switching of pages displayed on the screen, and the speed at which the pages are continuously switched is set to the current speed. The longer the distance between the contact position and the contact position when contact with the screen is started, the faster the contact position is.

  According to the present invention, it is possible to continuously switch pages, and the user can adjust the speed of continuously switching pages by adjusting the contact position on the screen.

  According to a sixth aspect of the present invention, in the portable device according to the first or second aspect, the switching unit continuously switches the page displayed on the screen and continuously switches the page. The speed is increased as the elapsed time from the start of the switching is longer.

  According to the present invention, it is possible to continuously switch pages, and the user can continuously switch pages by maintaining a preset operation while maintaining a relatively tilted state of the mobile device. The switching speed can be gradually increased.

  According to a seventh aspect of the present invention, in the portable device according to any one of the first to sixth aspects, the detection unit is configured so that the screen is directed in a turning direction in which the page can be turned with respect to the screen. Detecting the tilt angle caused by tilting the portable device and the tilt angle caused by tilting the portable device so that the screen faces in a direction opposite to the turning direction. When the tilt angle in the turning direction is detected, it is determined whether or not the tilt angle is greater than or equal to the set angle, and the switching unit executes page switching in the turning direction, After the start of switching, the preset value for the operation means is set while the tilt angle in the reverse direction equal to or greater than the preset reverse angle preset by the detection means is not detected. While the operation is not canceled, and executes sequentially switching the page.

  According to the present invention, it is possible to continuously switch pages, and the user tilts the mobile device in a direction opposite to the direction in which the user tilts the mobile device to switch pages, or is preset for the operation means. When the operation is canceled, page switching stops. Therefore, the user can easily perform continuous switching of pages because pages are continuously switched by maintaining a preset operation while maintaining a relatively tilted state of the mobile device. .

  According to an eighth aspect of the present invention, in the portable device according to any one of the first to seventh aspects, the detection unit turns the page in a predetermined direction and a direction opposite to the predetermined direction with respect to the screen. As the possible turning direction, the inclination angle when the portable device is inclined so that the screen faces in the turning direction is detected, and the inclination state information of the portable device is at least inclined in the predetermined direction. Storage means for storing state information set to either the tilt state or the second tilt state tilted in the reverse direction, and the switching means includes at least the first tilt state or the first tilt in the state information. 2 When the tilt state is set and the operation determining unit determines that the preset operation has been performed, the page information in the tilt direction indicated by the state information is displayed. And executes the Rikae.

  According to the present invention, it is possible to control the page switching direction by setting information indicating the tilt state of the mobile device when the mobile device is relatively tilted by a set angle or more.

  The invention according to claim 9 is a page switching method in a portable device having a screen for displaying content composed of a plurality of pages and provided with an operation means operated by a user, the predetermined time before the predetermined time. Detecting a relative inclination angle of the portable device with respect to the portable device, and an angle determining step for determining whether or not the inclination angle detected in the detection step is equal to or larger than a preset set angle. An operation determination step for determining whether or not a preset operation has been performed on the operation means; and in the angle determination step, the inclination angle is determined to be greater than or equal to the set angle, and the operation determination step The switching step for switching the page displayed on the screen when it is determined that the preset operation has been performed. Characterized in that it comprises a flop, a.

  According to a tenth aspect of the present invention, there is provided a computer included in a portable device having a screen for displaying content composed of a plurality of pages and provided with an operation unit operated by a user at a predetermined time before the predetermined time. Detection means for detecting a relative inclination angle of the portable device with respect to the portable device, angle determination means for determining whether the inclination angle detected by the detection means is equal to or larger than a preset set angle, and the operation An operation determining means for determining whether or not a preset operation has been performed on the means; and the angle determining means determines that the tilt angle is greater than or equal to the set angle, and the operation determining means When it is determined that a preset operation has been performed, the switching unit is configured to function as a switching unit that switches a page displayed on the screen.

  According to the present invention, pages are switched on the condition that the user tilts the belt device relatively, so that the page switching operation can be performed with a natural feeling. In addition, the page can be switched by performing two operations, that is, the user relatively tilting the mobile device for a predetermined time and performing a preset operation on the operation means, so that the page is displayed. It is possible to prevent a page to be changed from being erroneously switched.

(A) is a front view which shows an example of the portable device 1 which concerns on one Embodiment, (b) is a figure which shows an example of schematic structure of the portable device 1 which concerns on one Embodiment. (A) is a figure which shows the list | wrist of the difference of the measured value of the inclination angle detected for every inclination angle measurement space | interval, (b) is the X coordinate of the background color position detected for every screen contact event space | interval, and It is a figure which shows the list of the difference of a Y coordinate. It is a figure which shows an example of the state of the flag in a tilt and the flag in slide, and the state of the page turning with respect to the state of a flag. (A) thru | or (c) is a figure which shows an example of the operation | movement image for turning the page of an electronic book to the right, FIG.4 (d) thru | or (f) turn the page in the right direction of an electronic book. It is a figure which shows an example of the operation | movement image for making it stop. It is a flowchart which shows the process example of the inclination event process part 11a which concerns on one Embodiment. It is a flowchart which shows the process example of the contact event process part 11b which concerns on one Embodiment. It is a flowchart which shows the process example of the contact event process part 11b which concerns on one Embodiment. It is a flowchart which shows the process example of the page turning determination part 11c which concerns on one Embodiment. It is a flowchart which shows the process example of the inclination event process part 11a which concerns on the modification 1 of one Embodiment. It is a flowchart which shows the process example of the inclination event process part 11a which concerns on the modification 1 of one Embodiment. It is a flowchart which shows the process example of the contact event process part 11b which concerns on the modification 2 of one Embodiment. It is a flowchart which shows the process example of the page turning determination part 11c which concerns on the modification 3 of one Embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[1. Overview of mobile device configuration and functions]
First, the configuration and functional overview of the mobile device 1 according to the present embodiment will be described with reference to FIGS. 1 to 4.

  FIG. 1A is a front view showing an example of the mobile device 1 according to the present embodiment. The mobile device 1 is a display device that can be carried by a user, and has a screen on which a page of an electronic book is displayed. Examples of the mobile device 1 include a mobile phone such as a smartphone, a tablet PC, and an electronic book reader. As shown in FIG. 1A, the mobile device 1 includes a touch panel 2, buttons 3, and the like. The touch panel is an example of the operation means in the present invention, and plays a role as a display of the mobile device 1 and a role as an input device. In FIG. 1A, one page with an electronic book is displayed on the screen of the touch panel 2. The button 3 is used for a user operation.

  FIG. 1B is a diagram illustrating an example of a schematic configuration of the mobile device 1 according to the present embodiment. As illustrated in FIG. 1B, the mobile device 1 includes a control unit 11, a storage unit 12, a display unit 13, a tilt detection unit 14, a screen contact detection unit 15, and the like.

  The control unit 11 is configured around a CPU and includes a memory such as a ROM and a RAM. The CPU reads various programs stored in the ROM and the storage unit 12 and uses the RAM as necessary. Various controls of the portable device 1 are performed by executing the program. The RAM is an example of a storage unit in the present invention.

  The storage unit 12 is a nonvolatile storage device. The storage unit 12 is configured by, for example, a flash memory or the like, and stores various data and programs.

  Specifically, the storage unit 12 stores electronic book data. The data of the electronic book is composed of a plurality of page information. Each page information corresponds to information for one page in the book. The format of page information is arbitrary. For example, the page information may be image data corresponding to a screen display image for one page. Each page information is associated with a page number. The electronic book data further includes the total number of pages of the electronic book, a turning type indicating whether the book is a right-turned book or a left-turned book, and the like.

  The storage unit 12 stores a viewer program. The viewer program is a program for browsing electronic books. The control unit 11 functions as a tilt event processing unit 11a, a contact event processing unit 11b, a page turning determination unit 11c, and the like by executing a viewer program, and displays page information of the electronic book on the display unit 13 or a user In response to an operation from, a page turning (page switching) process of the electronic book is performed. The viewer program may be downloaded from a predetermined server device via the Internet, for example, or may be read from a personal computer via a cable, or stored via a recording medium such as a memory card. It may be read by the unit 12.

  Note that, in the present embodiment, an example is described in which a page of an electronic book is turned, but the content in the present invention is not limited to the electronic book. The content in the present invention can be applied to various content composed of information of a plurality of pages, for example.

  The display unit 13 corresponds to a display that constitutes the touch panel 2. The display unit 13 is, for example, a liquid crystal display, an organic EL (Electro-Luminescence) display, or the like. The display unit 13 displays various types of information such as characters and images based on the control of the control unit 11.

  The tilt detection unit 14 detects the tilt angle of the mobile device 1. The inclination detection unit 14 is configured by, for example, an acceleration sensor, a gyro sensor, or the like. For example, the inclination detection unit 14 measures the inclination angles of the mobile device 1 in the X-axis direction, the Y-axis direction, and the Z-axis direction with respect to the horizontal direction, and controls the measurement value of the inclination angle in response to a request from the control unit 11. To the unit 11. The X-axis direction is a horizontal direction with respect to the screen of the touch panel 2. The Y-axis direction is a vertical direction with respect to the screen of the touch panel 2. The Z-axis direction is a direction perpendicular to the screen of the touch panel 2.

  The screen contact detection unit 15 corresponds to an input device that constitutes the touch panel 2. When the user is touching the screen of the display unit 13 with a finger, a touch pen or the like (hereinafter referred to as “finger”), the screen contact detection unit 15 is a touched position in the screen with the upper left corner of the screen as the origin (Hereinafter referred to as "contact position") coordinates are detected. The screen contact detection unit 15 outputs the X coordinate and the Y coordinate of the contact position to the control unit 11 in response to a request from the control unit 11. As an operation principle of the screen contact detection unit 15, for example, a pressure-sensitive method, a capacitance method, or the like may be used.

  The mobile device 1 having such a configuration can perform a page turning operation of an electronic book with a natural feeling when the user is browsing the electronic book by executing a viewer program. In addition, the mobile device prevents the pages of the electronic book from being switched accidentally. Therefore, in the viewer program, two operations by the user are required to turn the page. Below, the function of the inclination event process part 11a, the contact event process part 11b, and the page turning determination part 11c for it is demonstrated.

  The tilt event processing unit 11a is an example of a detection unit, an angle determination unit, and a control unit in the present invention, and detects a relative tilt of the mobile device 1. Then, the mobile device 1 changes the in-tilt flag indicating whether or not the mobile device 1 is tilting based on the detection result. The relative tilting of the mobile device 1 by the user is one of the operations necessary for turning the page of the electronic book.

  Specifically, the tilt event processing unit 11a acquires a measured value of the tilt angle in the X-axis direction from the tilt detection unit 14 at a predetermined time interval (hereinafter referred to as “tilt angle measurement interval”). Then, the tilt event processing unit 11a calculates a difference between the currently acquired measurement value and the previously acquired measurement value (measurement value acquired before the tilt angle measurement interval). This difference is a relative inclination angle from the state of the mobile device 1 before the inclination angle measurement interval. For example, the relative inclination angle is determined by using a line passing through the center of the portable device 1 in the vertical direction (Y-axis direction) as a rotation axis, and the rotation axis is stopped and the portable device 1 rotates during the inclination angle measurement interval. Angle. To relatively tilt the mobile device 1 means to change the tilt of the mobile device 1 from the state of the mobile device 1 before the tilt angle measurement interval. There are right and left directions for tilting the mobile device 1. Specifically, when the mobile device 1 is viewed from the bottom surface, it is said that the mobile device 1 rotates clockwise, and that the mobile device 1 rotates counterclockwise, that the mobile device 1 rotates counterclockwise. . Note that the mobile device 1 does not necessarily need to rotate around its rotation axis, and the relative inclination angle can be detected if the direction of the screen of the mobile device 1 changes. Instead of obtaining the relative tilt angle at the tilt angle measurement interval by the tilt event processing unit 11a calculating the tilt angle difference, the tilt detecting unit 14 determines the relative tilt angle at the tilt angle measurement interval as a tilt event. The data may be output to the processing unit 11a.

  When the tilt event processing unit 11a calculates the difference, if the absolute value of the difference is equal to or greater than a preset angle threshold value R, the tilt event processing unit 11a determines that the user tilted the mobile device 1 to turn the page, and tilts. Turn on the middle flag. When the mobile device 1 tilts to the right, the sign of the difference between the measured values of the tilt angle becomes positive, and when the mobile device 1 tilts to the left, the sign of the difference between the measured values of the tilt angle becomes negative. The leaning flag includes a right leaning flag and a left leaning flag. Therefore, the tilt event processing unit 11a turns on the right tilt flag when a difference of R degrees or more is detected, and turns on the left tilt flag when a difference of -R degrees or less is detected. .

  After the tilt event processing unit 11a turns on the in-tilt flag, during the tilt angle measurement interval, the mobile device 1 tilts more than R degrees in the opposite direction to the tilt direction when the in-tilt flag is turned on. , Turn on the in-tilting flag turned on. That is, the tilt event processing unit 11a determines that the user has released the tilted state of the mobile device 1 to turn the page. Specifically, the tilt event processing unit 11a turns the right tilt flag off and turns off the right tilt flag when a difference between measured values of tilt angles of −R degrees or more is detected after the right tilt flag is turned ON. After turning on the middle flag, if a difference between measured values of an inclination angle of + R degrees or more is detected, the left leaning middle flag is turned off. At this time, the tilt event processing unit 11a keeps the tilting flag that is not the tilting flag turned off among the left and right tilting flags OFF. The right-inclining flag and the left-inclining flag are examples of state information in the present invention.

  A specific example is shown below. FIG. 2A is a diagram showing a list of differences in measured values of tilt angles detected at every tilt angle measurement interval. Here, for example, the inclination angle measurement interval = 250 milliseconds and R = 45 degrees. In FIG. 2A, the difference between the measured values is 4, −2, −5, and 2 degrees for the first one second with the right tilting flag and the left tilting flag OFF. Therefore, the right tilting flag and the left tilting flag remain OFF. The difference between the measured values after 250 milliseconds is 61 degrees. Therefore, the right-inclining flag is turned ON from this point. The difference between the measured values for 1 second is 3, 11, -2, 0 degrees. For this reason, the right-inclining flag remains ON. Since the difference between the measured values after 250 milliseconds is −71 degrees, the right-inclining flag is OFF. At this time, the left-inclined flag does not change.

  The user satisfies one of the conditions for turning the page by tilting the mobile device 1 to the right or left by R degrees or more. This operation is an image of an operation of tilting a book to turn a page of an open book (or an operation of raising or lowering one of the left and right sides of the opened book). In this operation, the user does not need to hold the portable device 1 in the horizontal direction and tilt the portable device 1 from the state. The user may change the orientation of the mobile device 1 by R degrees or more during the inclination angle measurement interval.

  In addition, the tilt event processing unit 11a turns on the in-tilt flag, and after a preset time (hereinafter referred to as “tilt release time”) has elapsed, and there is no contact of a finger or the like with the screen. In this case, the in-tilting flag that was turned on is turned off. This is because, for example, when a certain period of time has passed without tilting the mobile device 1 after the user tilts the mobile device 1, the mobile device 1 can be tilted without intending to turn the page, This is because there is a case where the posture of the person is changed. The tilt release time is set to, for example, an integral multiple of the tilt angle measurement interval (for example, tilt angle measurement interval = 250 milliseconds, tilt release time 2.5 seconds, etc.).

  Further, the tilt event processing unit 11a displays an image representing the front edge of the book (an image representing one or more vertical lines) on the screen while any of the tilting flags is ON. Specifically, the tilt event processing unit 11a displays the front edge image at the left end of the screen when the right tilt flag is ON, and when the left tilt flag is ON. Display the front edge image on the right edge of the screen. That is, the tilt event processing unit 11a displays the front edge image on the opposite side of the direction in which the mobile device 1 is relatively tilted in the screen. At this time, the tilt event processing unit 11a determines the width of the front fore edge image according to the remaining amount of pages (number of pages) that is considered to be on the side where the front fore edge is displayed. Here, the page on the side where the front edge is displayed is the right side of the currently open page (the page currently displayed on the screen) when the portable device 1 is assumed to be an open book. A page or a page on the left side. For example, in the case of a right-turned book, the smaller the page number, the more on the right side. Accordingly, the page number of the page on the right side of the currently opened page is the page number-1 of the page currently displayed on the screen. On the other hand, the number of pages on the left side of the currently opened page is the total number of pages of the electronic book minus the page number of the page displayed on the current screen. The number of pages can be calculated for a left-turned book by the same method. Since the front edge image having a width corresponding to the remaining amount of the page is displayed, the user can roughly grasp the remaining amount of the page. The display position of the front fore edge may be on the opposite side of the direction in which the portable device 1 is tilted from the center of the screen.

  The contact event processing unit 11b is an example of an operation determination unit in the present invention, and detects a slide operation on the touch panel 2. Then, the contact event processing unit 11b changes the in-sliding flag indicating whether or not the user keeps the state where the user slides the finger or the like based on the detection result. The sliding operation refers to moving a predetermined distance from the contact position when the first contact is made to either the left or right without bringing the finger or the like into contact with the screen and releasing the finger from the screen. The slide operation is one of the operations necessary for turning the pages of the electronic book.

  Specifically, the contact event processing unit 11b detects a contact position from the screen contact detection unit 15 during a predetermined time interval (hereinafter referred to as “screen contact event interval”) while a finger or the like is in contact with the screen. Get the X and Y coordinates. Then, the contact event processing unit 11b calculates a difference between the acquired X coordinate and the X coordinate of the contact position (hereinafter referred to as “first contact position”) acquired when the finger or the like starts to touch the screen. To do. When the contact event processing unit 11b calculates the difference, if the absolute value of the difference is greater than or equal to a preset threshold value D, the contact event processing unit 11b determines that the user has performed a slide operation and turns on the in-slide flag. Actually, if the current contact position is on the right side of the first contact position, the difference sign is positive, and if the current contact position is on the left side of the first contact position, the difference sign is negative. It becomes. The sliding flag includes a right sliding flag and a left sliding flag. Therefore, the contact event processing unit 11b turns on the right-sliding flag when a difference of D or more is calculated, and turns on the left-sliding flag when a difference of -D or more is calculated.

  The contact event processing unit 11b turns on the slide when the absolute value of the difference between the X coordinate of the current contact position and the coordinate of the first contact position is less than D after turning on the slide flag. Set the middle flag to OFF. The contact event processing unit 11b also turns off the sliding flag even when the screen contact detection unit 15 no longer detects the contact position. That is, when the user removes his / her finger from the screen, the sliding flag is turned off.

  A specific example is shown below. FIG. 2B is a diagram showing a list of differences between the X coordinate and the Y coordinate of the contact position detected at each screen contact event interval. Here, for example, the screen contact event interval = 50 milliseconds and D = 50 pixels. In FIG. 2B, the X coordinate difference is 2, 26, 36, 42 pixels for the first 200 milliseconds with the right sliding flag and the left sliding flag OFF. For this reason, the right-sliding flag and the left-sliding flag remain OFF. The difference between the measured values after 50 milliseconds is 61 pixels. Therefore, the right-sliding flag is turned ON from this point. Thereafter, the difference in the measured value for 150 milliseconds is 75, 77, and 62 pixels. Therefore, the right slide flag remains ON. Then, since the difference between the measured values after 50 milliseconds is 46 pixels, the right-sliding flag is OFF.

  The user satisfies one of the conditions for turning the page by bringing the finger or the like into contact with the screen of the mobile device 1 and then performing a slide operation of moving the finger or the like to the right or left by D pixels or more. Become. This slide operation imagines the operation of squeezing the front edge of the book to turn the page of the opened book. When performing a slide operation, the user may move a finger or the like diagonally instead of right next to it. As a result, if the lateral distance between the initial contact position and the current contact position is greater than or equal to D pixels, it is determined that the operation is a slide operation. While the distance in the horizontal direction between the initial contact position and the current contact position is D pixels or more, it is considered that the slide operation state is maintained. When the user moves his / her finger or the like to the lateral distance between the initial contact position and the current contact position to less than D pixels, or releases the finger or the like from the screen, the slide operation state is released. It is judged that

  The page turning determination unit 11c is an example of a switching unit according to the present invention. The page turning determination unit 11c determines whether or not a page turning operation has been performed. If it is determined that a page turning operation has been performed, a page turning process is performed. I do.

  Specifically, the page turning determination unit 11c manages a right-tilting flag, a left-tilting flag, a right-sliding flag, and a left-sliding flag in the RAM, and the actual change of these flags is a page-turning determination. Part 11c performs. When changing the in-tilt flag, the tilt event processing unit 11a transmits a flag change command to the page turning determination unit 11c. Thereby, the page turning determination unit 11c rewrites the corresponding in-tilt flag. Further, the contact event processing unit 11b turns the flag change command at every screen contact event interval while the contact position is detected by the screen contact detection unit 15 regardless of whether or not the sliding flag is changed. It transmits to the determination part 11c. Accordingly, the page turning determination unit 11c rewrites the corresponding in-slide flag.

  The page turning determination unit 11c determines whether or not to perform page turning based on the four flags described above. FIG. 3 is a diagram illustrating an example of the state of the in-tilting flag and the in-sliding flag, and the page turning state with respect to the flag state. FIG. 3 shows whether the in-tilting flag that is ON in each of the in-tilting flag and the in-sliding flag is the right flag or the left flag. The right tilting flag and the left tilting flag are not turned ON at the same time, and the right slide flag and the left sliding flag are not turned ON at the same time.

  As shown in FIG. 3, when the right tilting flag is ON and the right sliding flag is ON, page turning is not performed. Also, when the left tilting flag is ON and the left sliding flag is ON, page turning is not performed. On the other hand, when the right tilting flag is ON and the left sliding flag is ON, a right turn is performed. Turning right means turning the page from left to right on the screen. Further, when the left leaning flag is ON and the right sliding flag is ON, the left turn is performed. Left-turning means that a page is turned from right to left on the screen. In addition, combinations of flags other than these, i.e., both the right tilt flag and the left tilt flag are OFF, the right slide flag and the left slide flag are both OFF, or all If the flag is OFF, page turning is not performed.

  In addition, the page turning determination unit 11c determines whether the right tilt flag is ON and the left slide flag is ON, or while the left tilt flag is ON and the right slide flag is ON. Turn pages at every screen touch event interval. That is, page turning is continuously performed.

  When the user tilts the mobile device 1 relative to the same direction as the page turning direction by R degrees or more and slides the mobile device 1 in the direction opposite to the tilted direction, the page is turned. The direction in which the page is turned and the direction in which the mobile device 1 is relatively inclined is the same direction. The direction in which the page is turned and the direction in which the mobile device 1 is relatively inclined are both “right” or “left”. It means that there is. That is, when the page turning direction is right, the mobile device 1 is tilted so that the screen is directed to the right, and when the page turning direction is left, the mobile device 1 is tilted so that the screen is directed to the left. It is.

  A specific example of the user's operation for turning a page of an electronic book will be described below.

  4A to 4C are diagrams illustrating an example of an operation image for turning a page of an electronic book to the right. Here, Fig.4 (a) is a figure which shows an example of the state of the portable apparatus 1 at the time of seeing the portable apparatus 1 from the bottom face side. FIG. 4B is a diagram illustrating an example of finger movement with respect to the screen of the mobile device 1. FIG. 4E is a diagram illustrating a display example of the screen of the mobile device 1 when a page is turned.

  As shown in FIG. 4A, the user relatively tilts the mobile device 1 to the right by R degrees or more from the state shown by the broken line to the state shown by the solid line. Then, as shown in FIG. 4B, the front edge image 21 is displayed at the left end of the screen. In FIG.4 (b), the code | symbol F shows a user's finger | toe. Here, the user's finger F starts contact with the screen at the position indicated by the broken line. The place where the finger or the like is contacted first may be any place on the screen. Then, the user moves the finger F leftward to a position indicated by a solid line while the finger F is in contact with the screen before the tilt release time elapses after the mobile device 1 is tilted. That is, the user performs a slide operation in the left direction. Then, as shown in FIG. 4C, the page of the electronic book is turned to the right. Note that even when the mobile device 1 is tilted after the user performs a slide operation, or when the slide operation and the tilt of the mobile device 1 are performed at the same time, page turning is performed. If the tilt of the portable device 1 and the position of the finger F are maintained as they are in the state shown in FIG. 4C, the page is turned at every screen contact event interval. Thus, page turning is continuously performed.

  4D to 4F are diagrams illustrating an example of an operation image for stopping page turning in the right direction of the electronic book. Here, FIG.4 (d) is a figure which shows an example of the state of the portable apparatus 1 at the time of seeing the portable apparatus 1 from the bottom face side. FIG. 4E is a diagram illustrating an example of finger movement with respect to the screen of the mobile device 1. FIG. 4F is a diagram illustrating a display example of the screen of the mobile device 1 when the page turning is stopped.

  As shown in FIG. 4D, the user tilts the mobile device 1 to the left by R degrees or more relatively from the state shown by the broken line to the state shown by the solid line. Then, as shown in FIG. 4F, the page turning of the electronic book is stopped. Alternatively, as shown in FIG. 4B, the user moves the finger F from the position indicated by the broken line to the position indicated by the solid line in the right direction. Then, as shown in FIG. 4F, the page turning of the electronic book is stopped. If the portable device 1 remains relatively inclined at this time, the front edge image 21 remains displayed in the screen.

  In addition, even if a user moves a finger etc. continuously right and left in the state which maintained the inclination of the portable apparatus 1 in the state of FIG. Can be done. In addition, the user can continuously switch pages by continuously tilting the mobile device 1 left and right while maintaining the position of a finger or the like in the state of FIG. 4C. it can.

  When turning the page of the electronic book to the left, the user may perform the reverse operation. That is, the user may perform a slide operation that tilts the mobile device 1 relatively to the left and moves a finger or the like in the right direction. Then, the user can stop turning the page in the left direction by returning the state where the mobile device 1 is relatively inclined or canceling the slide operation.

  Accordingly, it is possible to perform the page turning operation of the electronic book with a natural feeling. That is, the page is turned in the same direction as the tilted direction on the condition that the user tilts the mobile device 1 relatively. Further, since the user does not need to tilt the mobile device 1 from the horizontal state, the user can perform the page turning operation while browsing the electronic book with the mobile device 1 in various systems. For example, even when it is difficult for the user to keep the mobile device 1 horizontal in a narrow place, or when the user holds the mobile device 1 while sleeping, the page can be turned. Further, in order to turn a page, both the operations of relatively tilting the mobile device 1 and performing a slide operation are required. Therefore, it is possible to prevent the page from being turned by mistake. For example, even if the user changes the posture or changes the orientation of the mobile device 1, the page is not turned unless the user performs a slide operation. Even if the user accidentally touches the screen, the page is not turned unless the user tilts the mobile device 1 relatively.

[2. Operation of portable device]
Next, the operation of the mobile device 1 will be described with reference to FIGS.

  The control unit 11 of the mobile device 1 activates the viewer program in response to an operation on the touch panel 2 or the like by the user. Next, the control unit 11 reads out page information (for example, page information on the first page) of the electronic book designated by the user from the storage unit 12. The control unit 12 displays the page information on the screen by outputting the read page information to the display unit 13. And the control part 11 will be in the state of waiting for the operation from a user. Each process described below is executed when the viewer program is activated.

  FIG. 5 is a flowchart illustrating a processing example of the tilt event processing unit 11a according to the present embodiment. The control unit 11 calls the tilt event processing unit 11a at every tilt angle measurement interval, and obtains the measured value of the current tilt angle from the tilt detection unit 14. The process shown in FIG. 5 is executed every time the tilt event processing unit 11 a is called from the control unit 11.

  First, when the inclination event processing unit 11a acquires the measurement value of the inclination angle, the inclination event processing unit 11a determines whether or not the previous measurement value is held in the RAM (step S1). When the process shown in FIG. 5 is executed for the first time after the viewer program is started, the previous measurement value is not held. Therefore, when it is determined that the previous measurement value is not held (step S1: NO), the tilt event processing unit 11a holds the acquired measurement value in the RAM (step S2). When this process is finished, the tilt event processing unit 11a ends the process shown in FIG.

  On the other hand, when it is determined that the previous measurement value is held (step S1: YES), the tilt event processing unit 11a subtracts the previous measurement value from the currently acquired measurement value, thereby obtaining a difference between the measurement values. Is calculated. Then, the inclination event processing unit 11a determines whether or not the difference between the current measurement value and the previous measurement value is equal to or greater than R degrees (step S3). At this time, when it is determined that the difference is equal to or greater than R degrees (step S3: YES), the tilt event processing unit 11a determines whether the left tilt flag is ON (step S4). At this time, if the tilt event processing unit 11a determines that the left tilt flag is not ON (step S4: NO), the tilt event processing unit 11a displays the front edge image on the left end of the screen (step S5). Specifically, the tilt event processing unit 11a is on the left side of the currently displayed page based on the page number of the page currently displayed on the screen, the turning type and the total number of pages included in the electronic book data, and the like. Calculate the number of pages that are considered to be in Then, the tilt event processing unit 11a displays a front edge image having a width corresponding to the calculated number of pages. Next, the tilt event processing unit 11a transmits a flag change command for turning on the right tilt flag to the page turning determination unit 11c (step S6). Next, the tilt event processing unit 11a sets 0 to the counter (step S7). This counter is used to determine whether or not the tilt release time has elapsed since the in-tilt flag is turned ON. Next, the tilt event processing unit 11a stores the measurement value acquired this time in the RAM (step S2), and ends the processing illustrated in FIG.

  In step S4, when the tilt event processing unit 11a determines that the left tilt flag is ON (step S4: YES), the front fore edge image displayed at the right end in the screen is deleted from the screen. (Step S8). Next, the tilt event processing unit 11a transmits a flag change command for turning off the left tilt flag to the page turning determination unit 11c (step S9). Next, the tilt event processing unit 11a executes the processes of steps S7 and S2, and ends the process shown in FIG.

  In step S3, when the tilt event processing unit 11a determines that the difference between the current measurement value and the previous measurement value is not greater than R degrees (step S3: NO), the current measurement value and the previous measurement value are determined. It is determined whether or not the difference from the value is −R degrees or less (step S10). At this time, when it is determined that the difference is equal to or less than −R degrees (step S10: YES), the tilt event processing unit 11a determines whether or not the right tilt flag is ON (step S11). At this time, when it is determined that the right tilt flag is not ON (step S11: NO), the tilt event processing unit 11a displays the front edge image on the right end of the screen (step S12). Specifically, the tilt event processing unit 11a is on the right side of the currently displayed page based on the page number of the page currently displayed on the screen, the turning type and the total number of pages included in the electronic book data, and the like. Calculate the number of pages that are considered to be in Then, the tilt event processing unit 11a displays a front edge image having a width corresponding to the calculated number of pages. Next, the tilt event processing unit 11a transmits a flag change command for turning on the left tilt flag to the page turning determination unit 11c (step S13). Next, the tilt event processing unit 11a executes the processes of steps S7 and S2, and ends the process shown in FIG.

  In step S11, when the tilt event processing unit 11a determines that the right tilt flag is ON (step S11: YES), the front fore edge image displayed at the left end in the screen is deleted from the screen. (Step S14). Next, the tilt event processing unit 11a transmits a flag change command for turning off the right tilt flag to the page turning determination unit 11c (step S15). Next, the tilt event processing unit 11a executes the processes of steps S7 and S2, and ends the process shown in FIG.

  In step S10, when the tilt event processing unit 11a determines that the difference between the current measurement value and the previous measurement value is not less than -R degrees (step S10: NO), the right tilt flag and the left tilt It is determined whether at least one of the medium flags is ON (step S16). At this time, if the control unit 11 determines that both the right-inclining flag and the left-inclining flag are OFF (step S16: NO), the control unit 11 executes step S2 and ends the process shown in FIG. .

  On the other hand, when it is determined that at least one of them is ON (step S16: YES), the tilt event processing unit 11a adds 1 to the counter (step S17). Next, the tilt event processing unit 11a determines whether or not the counter is equal to or greater than a preset threshold value (step S18). A value obtained by multiplying the threshold value by the inclination angle measurement interval corresponds to the inclination release time. At this time, if the tilt event processing unit 11a determines that the counter is not equal to or greater than the threshold (step S18: NO), it executes step S2 and ends the process shown in FIG.

  On the other hand, when it is determined that the counter is greater than or equal to the threshold (step S18: YES), the tilt event processing unit 11a determines whether or not there is a finger touch on the current screen (step S19). At this time, if the tilt event processing unit 11a determines that there is a finger touch or the like on the screen (step S19: YES), the tilt event processing unit 11a executes step S2 and ends the process illustrated in FIG. On the other hand, when the tilt event processing unit 11a determines that there is no contact of the finger or the like with the screen (step S19: NO), the tilt event processing unit 11a deletes the front edge image displayed at the right end or the left end in the screen from the screen. (Step S20). Next, the tilt event processing unit 11a transmits a flag change command for turning off both the right tilting flag and the left tilting flag to the page turning determination unit 11c (step S21). Next, the tilt event processing unit 11a sets 0 to the counter (step S22). Next, the tilt event processing unit 11a executes step S2 and ends the process shown in FIG.

  Although not shown, the tilt event processing unit 11a changes the horizontal width of the front edge image displayed on the screen according to the page turning while the pages are continuously turned.

  FIG. 6 is a flowchart illustrating a processing example of the contact event processing unit 11b according to the present embodiment. While the screen contact detection unit 15 detects that there is contact with the screen, the control unit 11 calls the contact event processing unit 11b at each screen contact event interval, and the current contact is made from the screen contact detection unit 15. Get the coordinates of the position. The process shown in FIG. 6 is executed each time the contact event processing unit 11b is called from the control unit 11.

  First, when acquiring the coordinates of the contact position, the contact event processing unit 11b determines whether or not the current contact is the first contact (step S31). For example, the contact event processing unit 11b determines whether it is the first contact by determining whether the first contact position is held in the RAM. At this time, when the contact event processing unit 11b determines that the current contact is the first contact (step S31: YES), the acquired contact position coordinates are stored in the RAM as the first contact position coordinates. (Step S32). When the contact event processing unit 11b finishes this process, the process shown in FIG. 6 is ended.

  On the other hand, when it is determined that the current contact is not the first contact (step S31: NO), the contact event processing unit 11b subtracts the X coordinate of the first contact position from the X coordinate of the contact position acquired this time. The X coordinate difference is calculated. Then, the contact event processing unit 11b determines whether or not the difference between the X coordinate of the current contact position and the X coordinate of the first contact position is greater than or equal to D pixels (step S33). At this time, if the contact event processing unit 11b determines that the difference is greater than or equal to D pixels (step S33: YES), the contact event processing unit 11b transmits a flag change command for turning on the right-sliding flag to the page turning determination unit 11c. (Step S34). When the contact event processing unit 11b finishes this process, the process shown in FIG. 6 is ended.

  On the other hand, when the contact event processing unit 11b determines that the difference is not greater than or equal to the D pixel (step S33: NO), the contact event processing unit 11b determines whether the difference is equal to or less than -D pixel (step S35). At this time, when the contact event processing unit 11b determines that the difference is equal to or less than −D pixels (step S35: YES), a flag change command for turning on the left slide flag is output to the page turning determination unit 11c. Transmit (step S36). When the contact event processing unit 11b finishes this process, the process shown in FIG. 6 is ended.

  On the other hand, when the contact event processing unit 11b determines that the difference is not equal to or less than −D pixel (step S35: NO), at least one of the right slide flag and the left slide flag is ON. Is determined (step S37). At this time, if it is determined that at least one of them is ON (step S37: YES), the controller 11 turns a page of a flag change command for turning off both the right slide flag and the left slide flag. It transmits to the determination part 11c (step S38). When the process is finished, or when it is determined that both the right slide flag and the left slide flag are OFF (step S37: NO), the contact event processing unit 11b ends the process shown in FIG. Let

  FIG. 7 is a flowchart illustrating a processing example of the contact event processing unit 11b according to the present embodiment. The processing shown in FIG. 7 is executed when the screen contact detection unit 15 detects that contact with the screen is lost. That is, it is executed at the timing when the user removes the finger from the screen.

  First, the contact event processing unit 11b determines whether or not at least one of the right sliding flag and the left sliding flag is ON (step S51). At this time, if it is determined that at least one of them is ON (step S51: YES), the control unit 11 turns a page of a flag change command for turning off both the right slide flag and the left slide flag. It transmits to the determination part 11c (step S52). When the contact event processing unit 11b finishes this process or determines that both the right slide flag and the left slide flag are OFF (step S52: NO), the first time held in the RAM. The coordinates of the contact position are discarded (step S53). When the contact event processing unit 11b finishes this process, the process shown in FIG. 7 is ended.

  FIG. 8 is a flowchart illustrating a processing example of the page turning determination unit 11c according to the present embodiment. The process shown in FIG. 8 is executed every time the page turning determination unit 11c receives a flag change command from the tilt event processing unit 11a or the contact event processing unit 11b.

  First, the page turning determination unit 11c rewrites the flag according to the received flag change command among the right tilting flag, the left tilting flag, the right sliding flag, and the left sliding flag (step S71). Next, the page turning determination unit 11c determines whether the right tilting flag is ON and the left sliding flag is ON (step S72). At this time, if the page turning determination unit 11c determines that the right tilting flag is ON and the left slide in progress flag is ON (step S72: YES), a process of turning the page of the electronic book to the right is performed. This is performed (step S73). For example, in the case of a right-turned electronic book, the page turning determination unit 11c reads page information having a page number one larger than the page number of the page information currently displayed on the screen from the storage unit 12. Then, the page turning determination unit 11c outputs the read page information to the display unit 13 to display the page information of the next page on the screen. At this time, the page turning determination unit 11c may display on the screen an animation showing how the page is turned. When this process ends, the page turning determination unit 11c ends the process shown in FIG.

  In step S72, when the page turning determination unit 11c determines that at least one of the right tilt flag and the left slide flag is OFF (step S72: NO), the left tilt flag is ON. And whether the right-sliding flag is ON is determined (step S74). At this time, when the page turning determination unit 11c determines that the left tilt flag is ON and the right slide flag is ON (step S74: YES), a process of turning the page of the electronic book to the left is performed. This is performed (step S75). For example, in the case of a right-turned electronic book, the page turning determination unit 11c reads page information whose page number is one smaller than the page number of the page information currently displayed on the screen from the storage unit 12. Then, the page turning determination unit 11c outputs the read page information to the display unit 13 to display the page information of the previous page on the screen. At this time, the page turning determination unit 11c may display on the screen an animation showing how the page is turned. When this process ends, the page turning determination unit 11c ends the process shown in FIG.

  On the other hand, when the page turning determination unit 11c determines that at least one of the left-tilting flag and the right-sliding flag is OFF (step S74: NO), the process illustrated in FIG. 8 is terminated. .

  While the screen contact detection unit 15 detects that there is contact with the screen, a flag change command is transmitted from the contact event processing unit 11b to the page turning determination unit 11c at each screen contact event interval. . That is, the process shown in FIG. 8 is executed at every screen contact event interval. Therefore, while the right tilting flag is ON and the left sliding flag is ON, step S73 is executed at every screen contact event interval, the left tilting flag is ON, and the right sliding flag is ON. While there is, step S75 is executed at every screen contact event interval. Accordingly, the page turning determination unit 11c performs page turning continuously.

  As described above, according to the present embodiment, the tilt event processing unit 11a detects the relative tilt angle of the mobile device 1 with respect to the mobile device 1 before the tilt angle measurement interval for each tilt angle measurement interval. Then, it is determined whether or not the detected relative inclination angle is equal to or greater than R degrees, the contact event processing unit 11b determines whether or not a slide operation has been performed on the touch panel 2, and the inclination event processing unit 11a. When it is determined that the tilt angle is equal to or greater than R degrees, and the contact event processing unit 11b determines that a slide operation has been performed, the page turning determination unit 11c switches the page displayed on the screen.

  Accordingly, it is possible to perform the page switching operation with a natural feeling while preventing the page displayed on the screen from being erroneously switched.

  In addition, the tilt event processing unit 11a detects a relative tilt angle when the mobile device 1 is tilted so that the screen is directed to the right or left where the page can be turned with respect to the screen, and the page turning determination unit 11c The direction in which the mobile device 1 is relatively tilted in the screen when the page is switched to the right or left and the tilt event processing unit 11a determines that the relative tilt angle is equal to or greater than R degrees. An image representing the front edge is displayed on the opposite direction side of the electronic book, and among the pages included in the electronic book, the portable device 1 is on the opposite direction side of the direction in which the portable device 1 is relatively inclined relative to the page displayed on the screen. The greater the number of pages considered, the wider the horizontal width of the image representing the front edge.

  Therefore, the user can roughly grasp the remaining number of pages.

  In addition, the page turning determination unit 11c starts switching pages displayed on the screen, and then starts relative switching of R degrees or more by tilting the mobile device 1 in a direction opposite to the direction in which the mobile device 1 is tilted to turn the page. While the tilt angle is not detected by the tilt event processing unit 11a, the pages are continuously switched while the slide operation is not released.

  Therefore, the user can easily perform continuous switching of pages because the pages are continuously switched by maintaining the sliding operation while maintaining the mobile device 1 relatively tilted.

  In addition, when the tilt event processing unit 11a detects a relative tilt angle of R degrees or more to the right or left when both the right tilt flag and the left tilt flag are set to OFF, When the in-tilt flag corresponding to the direction in which the device 1 is tilted is changed to ON, and either the right-inclined flag or the left-inclined flag is set to ON, the in-tilt flag set to ON is When a relative inclination angle equal to or greater than R degrees is detected in the direction opposite to the inclination direction shown, the in-tilt flag set to ON is changed to OFF, and the page turning determination unit 11c Alternatively, when any of the left tilting flags is set to ON and the contact event processing unit 11b determines that a slide operation has been performed, the direction of tilt indicated by the tilting flag set to ON is set. To run the page switching.

  Accordingly, by changing the right tilting flag or the left tilting flag in accordance with the relative tilt of the mobile device 1 by ± R degrees or more, it is possible to control whether or not to switch pages and the switching direction.

[3. Modified example]
Next, an example in which the page turning speed is changed by the user's operation when pages of an electronic book are continuously turned will be described as a modification of the present embodiment.

[3-1. Modification 1]
The mobile device 1 may change the page turning speed in response to the user tilting the mobile device relatively to the right or left after starting the page turning. Specifically, the tilt event processing unit 11a determines the page turning speed when the absolute value of the difference between the current measurement value and the previous measurement value of the tilt angle is equal to or greater than a preset angle threshold value S. change. Here, S <R. The tilt event processing unit 11a increases the page turning speed when the difference in the measured value of the tilt angle is equal to or greater than S when the right tilt flag is ON. On the other hand, when the right tilt flag is ON, the tilt event processing unit 11a slows the page turning speed if the difference between the measured values of the tilt angle is −S or less. In addition, the tilt event processing unit 11a increases the page turning speed when the difference between the measured values of the tilt angle is −S or less when the left tilt flag is ON. On the other hand, the tilt event processing unit 11a slows down the page turning speed when the difference between the measured values of the tilt angle is equal to or greater than S when the left tilt flag is ON. That is, when the user tilts the mobile device 1 relative to the same direction as the current page turning direction by S or more, the page turning speed is increased, which is opposite to the current page turning direction. When the mobile device 1 is tilted relative to the direction by S or more, the page turning speed becomes slow. In order to increase the page turning speed, the screen touch event interval may be shortened. To reduce the page turning speed, the screen touch event interval may be increased. The screen contact event interval is set to an initial value by the control unit 11 when the viewer program is started.

  9 and 10 are flowcharts illustrating a processing example of the tilt event processing unit 11a according to the first modification of the present embodiment. In FIG. 9, processes similar to those in FIG. 5 are given the same step numbers.

  As illustrated in FIG. 9, when the tilt event processing unit 11 a determines that both the right tilt flag and the left tilt flag are OFF (step S <b> 16: NO), the tilt event processing unit 11 a determines that the counter is not equal to or greater than the threshold ( Step S18: NO), or when it is determined that there is a finger touch or the like on the screen (Step S19: YES), as shown in FIG. 10, the right tilt flag is ON and the left slide flag is ON. It is determined whether or not it is ON (step S111). At this time, if the tilt event processing unit 11a determines that the right tilt flag is ON and the left slide flag is ON (step S111: YES), the current measurement value and the previous measurement value are determined. It is determined whether or not the difference is greater than S degrees (step S112). At this time, when it is determined that the difference is greater than or equal to S degrees (step S112: YES), the tilt event processing unit 11a shortens the screen contact event interval (step S113). For example, the tilt event processing unit 11a subtracts a predetermined value from the screen contact event interval. When the tilt event processing unit 11a finishes this process, the process proceeds to step S2. Note that if the current screen contact event interval has reached a preset lower limit value, the tilt event processing unit 11a does not execute Step S113.

  On the other hand, when it is determined that the difference is not greater than or equal to S degrees (step S112: NO), the tilt event processing unit 11a determines whether or not the difference is equal to or less than -S degrees (step S114). At this time, when it is determined that the difference is −S degrees or less (step S114: YES), the tilt event processing unit 11a increases the screen contact event interval (step S115). For example, the tilt event processing unit 11a adds a predetermined value to the screen contact event interval. When the tilt event processing unit 11a finishes this process, the process proceeds to step S2. Note that if the current screen contact event interval has reached the preset upper limit value, the tilt event processing unit 11a does not execute Step S115. On the other hand, when the inclination event processing unit 11a determines that the difference is not equal to or less than -S degrees (step S114: NO), the inclination event processing unit 11a proceeds to step S2.

  In step S111, when the tilt event processing unit 11a determines that at least one of the right tilt flag and the left slide flag is OFF (step S111: NO), the left tilt flag is ON. And whether the right-sliding flag is ON is determined (step S116). At this time, if the tilt event processing unit 11a determines that the left tilt flag is ON and the right slide flag is ON (step S116: YES), the current measurement value and the previous measurement value are determined. It is determined whether or not the difference is −S degrees or less (step S117). At this time, when it is determined that the difference is equal to or less than -S degrees (step S117: YES), the tilt event processing unit 11a shortens the screen contact event interval (step S118) and proceeds to step S2.

  On the other hand, when it is determined that the difference is not less than -S degrees (step S117), the tilt event processing unit 11a determines whether the difference is greater than or equal to S degrees (step S119). At this time, when it is determined that the difference is equal to or greater than S degrees (step S119: YES), the tilt event processing unit 11a increases the screen contact event interval (step S120), and proceeds to step S2. On the other hand, when it is determined that the difference is not greater than or equal to S degrees (step S119: NO), the tilt event processing unit 11a proceeds to step S2.

  In step S116, when the tilt event processing unit 11a determines that at least one of the left tilt flag and the right slide flag is OFF (step S116: NO), the process proceeds to step S2.

  In FIG. 9, when the tilt event processing unit 11a transmits a flag change command for turning off the left tilt flag (step S9), an initial value is set for the screen contact event interval (step S101), and the process proceeds to step S2. To do. Further, when the tilt event processing unit 11a transmits a flag change command for turning off the right tilt flag (step S15), the tilt event processing unit 11a sets an initial value for the screen contact event interval (step S102), and proceeds to step S2.

  As described above, according to this modification, after the page turning determination unit 11c starts switching the page displayed on the screen, the relative direction of S degrees or more in the same direction as the page is turned. When a tilt angle is detected by the tilt event processing unit 11a, the page switching speed is set to be higher than the current speed, and the relative tilt of S degrees or more in the direction opposite to the page turning direction. When the angle is detected by the tilt event processing unit 11a, the speed at which pages are continuously switched is made slower than the current speed.

  Therefore, the user can adjust the speed at which pages are continuously switched by tilting the mobile device 1 in the same direction as the direction in which the mobile device 1 is relatively tilted to switch pages or in the opposite direction. .

[3-2. Modification 2]
The mobile device 1 may increase the page turning speed as the distance in the horizontal direction from the initial contact position of a finger or the like to the current contact position increases. In this case, after the page turning is started, if the user further moves a finger or the like in the direction opposite to the direction in which the current page is turned, the page turning speed is increased and the current page is turned. If the finger or the like is further moved in the direction, the speed of turning the page becomes slower.

  FIG. 11 is a flowchart illustrating a processing example of the contact event processing unit 11b according to the second modification of the present embodiment. In FIG. 11, the same steps as those in FIG. 6 are denoted by the same step numbers.

  As illustrated in FIG. 11, when the contact event processing unit 11b transmits a flag change command for turning on the right-sliding flag (step S34), the contact event processing unit 11b sets a screen contact event interval (step S121). Specifically, the contact event processing unit 11b increases the screen contact event interval as the difference between the X coordinate of the current contact position and the X coordinate of the first contact position increases. For example, the touch event processing unit 11b may calculate a new screen touch event interval by multiplying the difference by a preset coefficient. When the touch event processing unit 11b finishes this process, the touch event processing unit 11b ends the process shown in FIG.

  In addition, when the contact event processing unit 11b transmits a flag change command for turning on the left-sliding flag (step S36), it sets a screen contact event interval (step S122). Specifically, the contact event processing unit 11b increases the screen contact event interval as the absolute value of the difference between the X coordinate of the current contact position and the X coordinate of the first contact position increases. When the touch event processing unit 11b finishes this process, the touch event processing unit 11b ends the process shown in FIG.

  Further, when the contact event processing unit 11b transmits a flag change command for turning off both the right slide flag and the left slide flag (step S38), the touch event processing unit 11b sets an initial value for the screen contact event interval (step S123). The process shown in FIG. 11 is terminated. The contact event processing unit 11b also sets an initial value for the screen contact event interval when the screen contact detection unit 15 detects that there is no more contact with the screen.

  As described above, according to the present modification, the contact event processing unit 11b performs the horizontal direction between the current contact position detected by the screen contact detection unit 15 and the contact position when the contact with the screen is started. When the distance at the time is greater than or equal to D pixels, it is determined that the operation is a slide operation, and the page turning determination unit 11c determines the speed at which the pages are continuously switched, and the contact position when the contact with the current contact position and the screen is started. The longer the distance to the position, the faster.

  Therefore, the user can adjust the speed at which pages are continuously switched by adjusting the contact position on the screen.

[3-3. Modification 3]
The mobile device 1 may increase the page turning speed in accordance with the elapsed time from the start of page turning. Specifically, the longer this elapsed time, the faster the page turning speed. In order to measure the elapsed time, a turning time counter is used. The turning time counter is set to 0, which is an initial value, by the control unit 11 when the viewer program is started.

  FIG. 12 is a flowchart illustrating a processing example of the page turning determination unit 11c according to the third modification of the present embodiment. In FIG. 12, the same steps as those in FIG. 8 are given the same step numbers.

  As shown in FIG. 12, when the page turning determination unit 11c executes the page turning process (step S73 or S75), 1 is added to the turning time counter (step S131). Next, the page turning determination unit 11c determines whether or not the page turning time counter is greater than or equal to a preset threshold value (step S132). At this time, if the page turning determination unit 11c determines that the turning time counter is not equal to or greater than the threshold (step S132: NO), the process illustrated in FIG. 12 is terminated. On the other hand, when the page turning determination unit 11c determines that the turning time counter is equal to or greater than the threshold (step S132: YES), the page contact event interval is shortened (step S133). For example, the page turning determination unit 11c subtracts a predetermined value from the screen contact event interval. If the current screen contact event interval has reached a preset lower limit value, the page turning determination unit 11c does not execute step S133. Next, the page turning determination unit 11c sets the turning time counter to 0 (step S134), and ends the process shown in FIG. Thereby, each time the turning time counter reaches the threshold value, the screen contact event interval is shortened. Therefore, the page turning speed gradually increases after the page turning is started.

  If the page turning determination unit 11c determines that at least one of the left-tilting flag and the right-sliding flag is OFF (step S74: NO), an initial value is set for the screen contact event interval. Setting is made (step S135). Next, the page turning determination unit 11c sets the turning time counter to 0 (step S136), and ends the process shown in FIG.

  As described above, according to this modification, the page turning determination unit 11c increases the speed at which pages are continuously switched as the elapsed time from the start of page switching increases.

  Therefore, the user can gradually increase the speed of continuously switching pages by maintaining the sliding operation while maintaining the mobile device 1 in a relatively inclined state.

  In the embodiment, the page can be turned in both the left and right directions with respect to the mobile device 1. However, the page may be turned only in one direction. Further, for example, the page may be turned in the vertical direction with respect to the mobile device 1. In this case, for example, page turning may be performed by tilting the mobile device 1 relatively up or down and performing a slide operation in a direction opposite to the tilted direction.

  Further, the page information is displayed on the screen of the mobile device 1 in units of one page. However, it may be displayed in units of two pages or more.

  Further, in the above embodiment, when performing a slide operation, it may be performed at any place in the screen. However, for example, a region where the slide operation can be performed by the slide operation in the right direction and the slide operation in the left direction may be limited. Moreover, in the said embodiment, page turning was performed by performing a slide operation in the direction opposite to the direction which inclined the portable apparatus 1. FIG. However, page turning may be performed by performing a slide operation in a predetermined direction other than the reverse direction. Further, the page turning may be performed by performing a slide operation in a predetermined direction regardless of the direction in which the portable device 1 is tilted, or the user performs a slide operation in an arbitrary direction. By performing, page turning may be performed.

  Further, operations other than the slide operation may be applied as operations on the touch panel 2 for turning pages. Further, as an operation for performing page turning, an operation with respect to operation means other than the touch panel 2 may be applied. For example, the page turning may be performed when the user tilts the portable device 1 relative to R degrees and presses the button 3.

  In the above embodiment, the absolute value of the tilt angle for turning on the in-tilt flag and the absolute value of the tilt angle for turning off the in-tilt flag are set to the same value (R). It may be a value. It is optional to set any value for each of the angle thresholds R and S, the distance threshold D, the tilt angle measurement interval, the screen contact event interval, the tilt release time, and the like.

DESCRIPTION OF SYMBOLS 1 Mobile device 2 Touch panel 3 Button 11 Control part 11a Inclination event process part 11b Contact event process part 11c Page turning determination part 12 Storage part 13 Display part 14 Inclination detection part 15 Screen contact detection part

Claims (10)

A portable device having a screen for displaying content composed of a plurality of pages,
Detecting means for detecting a relative inclination angle of the mobile device with respect to the mobile device before the predetermined time every predetermined time;
Operation means operated by a user;
Angle determination means for determining whether or not the tilt angle detected by the detection means is equal to or greater than a preset set angle;
Operation determination means for determining whether or not a preset operation has been performed on the operation means;
When the angle determination means determines that the tilt angle is equal to or greater than the set angle, and the operation determination means determines that the preset operation has been performed, the page displayed on the screen is switched. Switching means;
A portable device comprising: The mobile device according to claim 1,
The detecting means detects the tilt angle when the portable device is tilted so that the screen faces in a turning direction in which the page can be turned with respect to the screen;
The switching means executes page switching in the turning direction,
When the angle determination unit determines that the tilt angle is equal to or greater than the set angle, the control unit displays an image representing a front edge on the opposite side of the turning direction from the center in the screen. Of the pages included in the content, the more pages that are considered to be on the opposite side of the turning direction than the pages displayed on the screen, the more the pages in the turning direction of the image to be displayed on the screen are. Control means to widen the width;
A portable device further comprising: The portable device according to claim 1 or 2,
The detecting means detects the tilt angle when the portable device is tilted so that the screen faces in a turning direction in which the page can be turned with respect to the screen;
The switching means continuously executes the switching of the page displayed on the screen in the turning direction, and after starting the page switching, the switching means shifts the page in the turning direction that is equal to or larger than a preset angle by the detecting means. A portable device characterized in that, when the tilt angle is detected, a speed for continuously switching pages is made faster than a current speed. The portable device according to any one of claims 1 to 3,
The detection means includes the tilt angle when the portable device is tilted so that the screen faces in a turning direction in which the page can be turned with respect to the screen, and the screen so that the screen faces in a direction opposite to the turning direction. Detecting the tilt angle caused by tilting the mobile device;
The angle determination means determines whether the inclination angle is equal to or larger than the set angle when the detection means detects the inclination angle in the turning direction;
The switching means continuously performs the switching of the page displayed on the screen in the turning direction, and after starting the page switching, the switching means switches to the reverse direction that is equal to or larger than the angle preset by the detection means. A portable device characterized in that, when the tilt angle is detected, a speed for continuously switching pages is made slower than a current speed. The portable device according to any one of claims 1 to 4,
The operation means detects a contact position when an object is in contact with the screen as an operation from a user,
The operation determination unit is configured to respond to the operation unit when a distance between a current contact position detected by the operation unit and a contact position when contact with the screen is started is equal to or greater than a preset distance. It is determined that the operation is the preset operation,
The switching means continuously executes the switching of pages displayed on the screen, and the speed at which the pages are continuously switched is determined between the current contact position and the contact position when contact with the screen is started. A portable device that is faster as the distance increases. The portable device according to claim 1 or 2,
The switching means continuously executes switching of pages displayed on the screen, and increases the speed of continuously switching pages as the elapsed time from the start of switching increases. Mobile device. The portable device according to any one of claims 1 to 6,
The detection means includes the tilt angle when the portable device is tilted so that the screen faces in a turning direction in which the page can be turned with respect to the screen, and the screen so that the screen faces in a direction opposite to the turning direction. Detecting the tilt angle caused by tilting the mobile device;
The angle determination means determines whether the inclination angle is equal to or larger than the set angle when the detection means detects the inclination angle in the turning direction;
The switching means executes page switching in the turning direction, and after starting the page switching, the inclination angle in the reverse direction that is equal to or greater than the preset reverse angle preset by the detection means is detected. A portable device that continuously performs page switching while the preset operation on the operation means is not canceled during the absence of the operation. The portable device according to any one of claims 1 to 7,
The detecting means uses the predetermined direction and the reverse direction of the predetermined direction with respect to the screen as turning directions in which the page can be turned, respectively, and the inclination by tilting the portable device so that the screen faces in the turning direction. Detect the angle,
The mobile device further includes storage means for storing state information set to at least one of the first tilt state tilted in the predetermined direction and the second tilt state tilted in the reverse direction as the tilt state information of the portable device. ,
The switching means is set when at least the first inclination state or the second inclination state is set in the state information and the operation determining means determines that the preset operation has been performed. A portable device that performs switching of pages in a direction of inclination indicated by status information. A page switching method in a portable device having a screen for displaying content composed of a plurality of pages and having an operation means operated by a user,
Detecting a relative inclination angle of the portable device with respect to the portable device before the predetermined time every predetermined time;
An angle determination step for determining whether or not the tilt angle detected in the detection step is equal to or larger than a preset set angle;
An operation determination step for determining whether or not a preset operation has been performed on the operation means;
When it is determined in the angle determination step that the tilt angle is greater than or equal to the set angle, and it is determined in the operation determination step that the preset operation has been performed, the page displayed on the screen is switched. A switching step;
A page switching method characterized by including: A computer included in a portable device having a screen for displaying content composed of a plurality of pages and having an operation means operated by a user,
Detecting means for detecting a relative inclination angle of the portable device with respect to the portable device before the predetermined time every predetermined time;
Angle determination means for determining whether or not the tilt angle detected by the detection means is equal to or greater than a preset set angle;
Operation determining means for determining whether or not a preset operation has been performed on the operating means; and
When the angle determination means determines that the tilt angle is equal to or greater than the set angle, and the operation determination means determines that the preset operation has been performed, the page displayed on the screen is switched. Switching means,
Page switching program characterized by functioning as

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