JP2017041011A - Portable communication terminal and control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable communication terminal that can suppress a display deviation with other portable communication terminal when receiving an operation relative to a video image under synchronous reproduction.SOLUTION: A portable communication terminal 100A comprises: a display unit 5A that can display a video image; a reception unit 112 that receives an operation relative to the video image; a communication unit that communicates with a portable communication terminal 100B including a display unit 5B; and a display control unit 114 that synchronizes with the portable communication terminal 100B in communication with the portable communication terminal 100B, and causes the video image to be displayed on a screen having the display unit 5A and display unit 5B as one screen. The display control unit 114 is configured to suspend a display of the video image on the display unit 5A on the basis of reception of an operation for suspending reproduction of the video image by the reception unit 112, and transmit information indicative of a suspension position of the video image to the portable communication terminal 100B.SELECTED DRAWING: Figure 5

Description

  The present disclosure relates to control of a mobile communication terminal, and particularly to control of a mobile communication terminal capable of displaying a moving image.

  2. Description of the Related Art In recent years, a technology that can display a moving image with a plurality of screens as one screen by synchronizing a plurality of mobile communication terminals such as smartphones has attracted attention. Hereinafter, displaying a single moving image by synchronizing a plurality of screens is also referred to as “synchronized playback”. Regarding the technique of synchronized playback, Japanese Patent Application Laid-Open No. 2008-252422 (Patent Document 1) discloses a multi-screen synchronized playback system capable of accurately synchronizing the playback start time of content displayed on a multi-screen. ing.

JP 2008-252422 A

  When a user performs an operation (for example, a playback operation, a stop operation, a pause operation, a playback restart operation, a trick playback operation, etc.) on a video that is being played back synchronously, the display may be shifted between mobile communication terminals. It has become. If the display is shifted between the mobile communication terminals, the user feels uncomfortable and the user cannot enjoy the moving image. Therefore, there is a demand for a mobile communication terminal that does not shift its display even when a moving image is operated during synchronous playback.

  The multi-screen synchronized playback system disclosed in Patent Document 1 uses the time information transmitted from the synchronization server to adjust the clock time of each display control terminal. Each display control terminal starts playback of the content in accordance with the playback start time set for the content based on the time of the clock. That is, the multi-screen synchronized playback system synchronizes each display control terminal at a preset setting start time, and Patent Document 1 discloses a method for synchronizing content when a user operation is received. Absent.

  The present disclosure has been made in order to solve the above-described problems, and an object in one aspect is that display is shifted from other mobile communication terminals when an operation is performed on a moving image during synchronous playback. It is providing the portable communication terminal which can suppress this. An object in another aspect is to provide a control method capable of suppressing the display from being shifted from other mobile communication terminals when an operation is performed on a moving image during synchronous playback.

  According to one embodiment, the mobile communication terminal communicates with another mobile communication terminal including a first display unit capable of displaying a moving image, a receiving unit for receiving an operation on the moving image, and a second display unit. For communicating with the other mobile communication terminal by communication with the other communication unit for communication and displaying the moving image on the screen with the first display unit and the second display unit as one screen And a control unit. The display control unit stops displaying the moving image on the first display unit and displays information indicating the stop position of the moving image on the other portable communication terminal based on the reception unit receiving an operation for stopping the reproduction of the moving image. Send to.

  In one aspect, when an operation is performed on a moving image during synchronous playback, it is possible to suppress the display from being shifted from another mobile communication terminal.

  The above and other objects, features, aspects and advantages of the present invention will become apparent from the following detailed description of the present invention taken in conjunction with the accompanying drawings.

It is a figure which shows the procedure for carrying out synchronous reproduction of two portable communication terminals. It is a sequence diagram which shows the flow of the data between portable communication terminals at the time of receiving stop operation. It is a sequence diagram which shows the flow of the data between portable communication terminals at the time of receiving reproduction | regeneration operation. It is a sequence diagram which shows the data flow between portable communication terminals at the time of receiving the change operation of reproduction | regeneration position. It is a block diagram which shows an example of a function structure of a mobile communication terminal. It is a flowchart showing a part of process which a portable communication terminal performs. It is a flowchart showing a part of process which a portable communication terminal performs. It is a block diagram which shows the main hardware constitutions of a mobile communication terminal.

  Hereinafter, the present embodiment will be described with reference to the drawings. In the following description, the same parts and components are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

  In addition, below, although the mobile communication terminal as a smart phone is demonstrated, a mobile communication terminal is not limited to a smart phone. For example, the mobile communication terminal may include a tablet device, a digital camera, an electronic dictionary, a PDA (Personal Digital Assistant), a game machine, and other mobile devices including other display units. Each embodiment described below may be combined appropriately and selectively.

<First Embodiment>
[Synchronized playback]
With reference to FIG. 1, a procedure for synchronously reproducing a moving image using the display unit 5A of the mobile communication terminal 100A and the display unit 5B of the mobile communication terminal 100B as one screen will be described. FIG. 1 is a diagram illustrating a procedure for causing the mobile communication terminal 100A and the mobile communication terminal 100B to perform synchronous playback.

  As shown in FIG. 1A, the mobile communication terminal 100A includes a display unit 5A capable of displaying a moving image. An icon 50A is displayed on the display unit 5A. The icon 50A is an image associated with an application that provides a synchronized playback function with another mobile communication terminal.

  The mobile communication terminal 100B includes a display unit 5B that can display a moving image. An icon 50B is displayed on the display unit 5B. The icon 50B is an image associated with an application that provides a synchronized playback function with another mobile communication terminal.

  When the user presses the icons 50A and 50B, the mobile communication terminals 100A and 100B search each other for nearby mobile communication terminals. At this time, one mobile communication terminal whose icon is pressed becomes the main terminal, and the other mobile communication terminal becomes the sub-terminal. For example, assume that the mobile communication terminal 100A becomes a main terminal and the mobile communication terminal 100B becomes a sub-terminal. When the mobile communication terminal 100A can search for the mobile communication terminal 100B, the mobile communication terminal 100A establishes wireless communication with the mobile communication terminal 100B.

  When the wireless communication between the mobile communication terminal 100A and the mobile communication terminal 100B is established, as shown in FIG. 1B, the mobile communication terminal 100A as the main terminal displays a list of reproducible moving images on the display unit 5A. To display.

  It is assumed that the user desires to play the moving image 51. The user brings the mobile communication terminals 100A and 100B into contact with each other and presses the moving image 51 for a long time. 100A of mobile communication terminals start transmission of the moving image 51 to the mobile communication terminal 100B based on having detected the long press of the moving image 51. FIG. When the long press operation is canceled, the transmitted data is deleted from the mobile communication terminal 100B. In addition, when the moving image 51 already exists in the mobile communication terminal 100B, the mobile communication terminal 100A does not transmit the moving image 51 to the mobile communication terminal 100B.

  The user drags the moving image 51 to the display unit 5B following the long pressing operation of the moving image 51. When the drag position reaches a range of x% from the screen end of the display unit 5A on the contact surface side between the mobile communication terminal 100A and the mobile communication terminal 100B, the mobile communication terminal 100A transmits that fact to the mobile communication terminal 100B. To do. Thereafter, when the drag position reaches a range of x% from the screen end on the opposite surface side of the contact surface between the mobile communication terminal 100A and the mobile communication terminal 100B, the mobile communication terminal 100B informs the mobile communication terminal 100A of that fact. Send. The transmission of the drag position (touch coordinates) is executed in parallel with the transmission of the moving image 51 from the mobile communication terminal 100A to the mobile communication terminal 100B. When mobile communication terminal 100B determines that moving image 51 has been dropped in display unit 5B, mobile communication terminal 100B transmits this to mobile communication terminal 100A.

  When the moving image 51 is dropped on the display unit 5B, the mobile communication terminal 100A starts synchronous reproduction of the moving image 51, as shown in FIG. At this time, when the transmission of the moving image 51 to the mobile communication terminal 100B is not completed, the mobile communication terminal 100A waits for the start of the synchronized playback of the moving image until the transmission is completed. In this case, a progress bar indicating the time until transmission of the moving image 51 is completed may be displayed on the display unit 5A or the display unit 5B.

  A method for realizing synchronized playback will be described. The mobile communication terminals 100A and 100B set the time of the built-in clock function in advance, and the mobile communication terminal 100A transmits the playback start time of the moving image 51 to the mobile communication terminal 100B during synchronous playback. Each of the mobile communication terminals 100A and 100B starts to play a moving image based on the time indicated by its own clock function being the playback start time (for example, 0: 1: 23: 45). That is, the mobile communication terminals 100A and 100B play back moving images simultaneously. At this time, a part (for example, the left half) of the moving image 51 is displayed on the display unit 5A, and the remaining part (for example, the right half) of the moving image 51 is displayed on the display unit 5B. Accordingly, the mobile communication terminals 100A and 100B can display the moving image 51 using the display units 5A and 5B as one screen.

  For example, a method used in the application “Swipe Pair (registered trademark)” is used as a method of specifying a moving image portion (coordinates) to be displayed on each screen. In this method, the screen size and resolution information of the display units 5A and 5B are shared between the mobile communication terminals 100A and 100B. The mobile communication terminals 100A and 100B specify the portion of the moving image to be displayed based on the information.

  Note that the times of the mobile communication terminals 100A and 100B do not necessarily have to be synchronized at the time of reproducing a moving image, but are synchronized at an arbitrary timing. For example, the times of the mobile communication terminals 100A and 100B may be synchronized in advance when the application is activated. Further, the method of synchronizing the clocks of the mobile communication terminals 100A and 100B is not limited to the above example. For example, the clocks of the mobile communication terminals 100A and 100B may be synchronized via a network using NTP (Network Time Protocol) or the like.

  Preferably, an operation image 70 (accepting unit) for accepting an operation on a moving image is displayed on the display unit 5A of the mobile communication terminal 100A as the main terminal. The operation image 70 includes a rewind button 56, a play button 57, a pause button 58, a stop button 59, a fast forward button 60, and a seek bar 62.

  When detecting that the rewind button 56 is pressed, the mobile communication terminal 100A rewinds the moving image in synchronization with the mobile communication terminal 100B. When the mobile communication terminal 100A detects that the play button 57 is pressed, the mobile communication terminal 100A starts to play a moving image in synchronization with the mobile communication terminal 100B. When the mobile communication terminal 100A detects that the pause button 58 is pressed, the mobile communication terminal 100A pauses the reproduction of the moving image in synchronization with the mobile communication terminal 100B. When the mobile communication terminal 100A detects that the stop button 59 is pressed, the mobile communication terminal 100A stops the reproduction of the moving image in synchronization with the mobile communication terminal 100B. When the mobile communication terminal 100A detects pressing of the fast-forward button 60, the mobile communication terminal 100A fast-forwards the moving image in synchronization with the mobile communication terminal 100B. When the mobile communication terminal 100 </ b> A detects an operation on the seek bar 62, the mobile communication terminal 100 </ b> A starts playback of a moving image from the playback position specified for the seek bar 62 in synchronization with the mobile communication terminal 100 </ b> B.

  A user interface such as the operation image 70 is applied to a mobile communication terminal such as a smartphone or a tablet terminal, so that the user can intuitively perform operations such as reproduction, stop, and designation of a reproduction position. Thereby, the operability at the time of synchronous reproduction is improved, and the user can enjoy moving images without feeling uncomfortable.

[Synchronization method]
With reference to FIGS. 2 to 4, a synchronization method of the mobile communication terminals 100 </ b> A and 100 </ b> B when a user operation such as a stop operation or a reproduction operation is received will be described. Hereinafter, the synchronization method at the time of the stop operation, the synchronization method at the time of the reproduction operation, and the synchronization method at the time of the operation of changing the reproduction position will be described in order.

  In the following, it is assumed that mobile communication terminals 100A and 100B each have a clock function, and the times of mobile communication terminals 100A and 100B are synchronized in advance with each other.

  In the following, a synchronization method when the mobile communication terminal 100A receives a user operation will be described, but the mobile communication terminal 100B may accept a user operation.

(Synchronization method during stop operation)
With reference to FIG. 2, the synchronization method of portable communication terminal 100A, 100B at the time of stop operation is demonstrated. FIG. 2 is a sequence diagram showing a data flow between the mobile communication terminals 100A and 100B when a stop operation is received.

  In step S10, it is assumed that the mobile communication terminal 100A is synchronously reproducing a moving image in synchronization with the mobile communication terminal 100B.

  In step S12, it is assumed that the mobile communication terminal 100B is synchronously reproducing a moving image in synchronization with the mobile communication terminal 100A.

  In step S14, it is assumed that the user presses the pause button 58 (see FIG. 1) or the stop button 59 (see FIG. 1). Accordingly, the mobile communication terminal 100A accepts a moving image stop operation.

  In step S <b> 16, the mobile communication terminal 100 </ b> A stops moving image playback on the display unit 5 </ b> A (see FIG. 1) based on receiving the stop operation.

  In step S18, the mobile communication terminal 100A transmits to the mobile communication terminal 100B a command for stopping the reproduction of the moving image and information indicating the stop position of the moving image on the display unit 5A. The information indicating the stop position of the moving image is, for example, the stop time of the moving image, the frame number at which the moving image is stopped, the elapsed playback time based on the first image of the moving image, and the like.

  In step S20, the mobile communication terminal 100B returns the display of the moving image on the display unit 5B (see FIG. 1) to the image indicated by the stop position received from the mobile communication terminal 100A, and stops the reproduction of the moving image.

  Thereby, the display of the mobile communication terminals 100A and 100B is not shifted by the stop operation. As a result, the mobile communication terminals 100A and 100B can reproduce the moving image without deviation at the next reproduction.

(Synchronization method during playback operation)
With reference to FIG. 3, a synchronization method of portable communication terminals 100A and 100B at the time of a reproduction operation will be described. FIG. 3 is a sequence diagram showing a data flow between the mobile communication terminals 100A and 100B when receiving a reproduction operation.

  In step S30, it is assumed that the mobile communication terminal 100A stops the reproduction of the moving image in synchronization with the mobile communication terminal 100B by the synchronization process at the time of the stop operation shown in FIG. That is, it is assumed that the moving image stop position of the mobile communication terminal 100A is the same as the moving stop position of the 100B moving image.

  In step S32, it is assumed that the mobile communication terminal 100B stops the reproduction of the moving image in synchronization with the mobile communication terminal 100A by the synchronization process at the time of the stop operation shown in FIG. That is, it is assumed that the moving image stop position of the mobile communication terminal 100B is the same as the moving stop position of 100A.

  In step S34, it is assumed that the user presses the playback button 57 (see FIG. 1). As a result, the mobile communication terminal 100A accepts a video playback operation.

  In step S <b> 36, the mobile communication terminal 100 </ b> A transmits information indicating the playback start timing of the moving image to the mobile communication terminal 100 </ b> B based on receiving the playback operation. Information indicating the timing of starting playback of a moving image includes, for example, the playback start time of the moving image, the time until the start of moving image playback, and the like. In the following, the reproduction start time of a moving image will be described as an example as the reproduction start timing of the moving image. 100 A of portable communication terminals determine the reproduction start time of a moving image based on having received reproduction operation, and transmit the said reproduction start time and the reproduction | regeneration command of a moving image to the portable communication terminal 100B. The reproduction start time is, for example, a predetermined time after the reproduction operation is received (for example, 2 seconds later).

  In step S38, the mobile communication terminal 100A waits until the time measured by its own clock function reaches the determined playback start time.

  In step S40, the mobile communication terminal 100A starts playback of the moving image based on the fact that the time measured by its own clock function has reached the determined playback start time.

  In step S42, the mobile communication terminal 100B starts playback of the moving image based on the fact that the time measured by its own clock function is the playback start time received from the mobile communication terminal 100A.

  As a result, the display of the mobile communication terminals 100A and 100B is not shifted by the reproduction operation. As a result, the user can enjoy moving images without a sense of incongruity.

(Synchronization method when changing playback position)
With reference to FIG. 4, a method for synchronizing mobile communication terminals 100 </ b> A and 100 </ b> B when an operation for changing the playback position of a moving image is received will be described. FIG. 4 is a sequence diagram showing a data flow between the mobile communication terminals 100A and 100B when a reproduction position change operation is received.

  In step S60, it is assumed that the mobile communication terminal 100A receives an operation for changing the playback position of the moving image. For example, the mobile communication terminal 100 </ b> A detects an operation for changing the playback position of a moving image based on detecting an operation on the seek bar 62 (see FIG. 1).

  In step S <b> 62, the mobile communication terminal 100 </ b> A determines the playback start timing of the moving image based on the operation of changing the playback position, and is specified for the timing, the playback command of the moving image, and the seek bar 62. The playback position of the moving image is transmitted to the mobile communication terminal 100B. In the following, the reproduction start time of a moving image will be described as an example as the reproduction start timing of the moving image.

  In step S64, the mobile communication terminal 100A waits until the time measured by its own clock function reaches the determined playback start time.

  In step S66, the mobile communication terminal 100A starts playing the moving picture from the moving picture playing position specified for the seek bar 62, based on the fact that the time measured by its own clock function has reached the determined playing start time. To do.

  In step S <b> 48, the mobile communication terminal 100 </ b> B starts playing the moving image from the moving image playing position specified for the seek bar 62 based on the time when the time measured by its own clock function is reached. To do.

  As a result, the display of the mobile communication terminals 100A and 100B is not shifted due to the operation of changing the moving image playback position. As a result, the user can reproduce the moving image synchronously from a desired position, and can enjoy the moving image without feeling uncomfortable.

[Function configuration]
With reference to FIG. 5, the function of 100 A of portable communication terminals is demonstrated. FIG. 5 is a block diagram illustrating an example of a functional configuration of the mobile communication terminal 100A. As illustrated in FIG. 5, the mobile communication terminal 100A includes a CPU (Central Processing Unit) 2A and a display unit 5A. The CPU 2A includes a reception unit 112 and a display control unit 114 as functional configurations.

  The reception unit 112 receives a user operation for a moving image. The user operation includes, for example, a moving image reproduction operation, a moving image stop operation, and a moving image reproduction position changing operation. The accepting unit 112 outputs the content of the user operation to the display control unit 114 based on receiving the user operation.

  The display control unit 114 communicates with the mobile communication terminal 100B to realize synchronization with the mobile communication terminal 100B, and displays the moving image on the display unit 5A and the display unit 5B using the display unit 5A and the display unit 5B as one screen. Let

  More specifically, when the reception unit 112 receives a moving image stop operation, the display control unit 114 stops displaying the moving image on the display unit 5A. Further, the display control unit 114 transmits information indicating the stop position of the moving image on the display unit 5A to the mobile communication terminal 100B, and returns the moving image display on the display unit 5B to the image indicated by the stop position. The communication terminal 100B stops the moving image. Thereby, portable communication terminal 100A, 100B can synchronize the stop position of a moving image mutually.

  When the reception unit 112 receives a moving image playback operation, the display control unit 114 determines the playback start time of the video and transmits the playback start time to the mobile communication terminal 100B. The display control unit 114 starts the reproduction of the moving image on the display unit 5A based on the fact that the measured time of the mobile communication terminal 100A has reached the determined reproduction start time. On the other hand, the mobile communication terminal 100 </ b> B starts playing the moving image on the display unit 5 </ b> B based on the fact that its own time has reached the determined playback start time. Thereby, the reproduction of the moving image is simultaneously started in the mobile communication terminals 100A and 100B.

  When the receiving unit 112 receives an operation for changing the playback position, the display control unit 114 determines the playback start time of the moving image, and displays the playback start time and information indicating the changed playback position. It transmits to the portable communication terminal 100B. The display control unit 114 starts the reproduction of the moving image on the display unit 5A from the changed reproduction position based on the fact that the time measured by the mobile communication terminal 100A has reached the determined reproduction start time. On the other hand, the mobile communication terminal 100B starts the playback of the moving image on the display unit 5B from the playback position after the change based on the fact that its own time has reached the determined playback start time. Accordingly, the mobile communication terminals 100A and 100B can match the playback positions even when the playback position of the moving image is changed.

[Control structure of portable communication terminal 100A]
With reference to FIG. 6, the control structure of 100 A of portable communication terminals is demonstrated. FIG. 6 is a flowchart showing a part of the process executed by mobile communication terminal 100A. The processing in FIG. 6 is realized by the CPU 2A (see FIG. 5) of the mobile communication terminal 100A executing the program. In other aspects, some or all of the processing may be performed by circuit elements or other hardware.

  In step S100, the CPU 2A determines whether or not an application for realizing synchronized reproduction (hereinafter also referred to as “synchronized application”) is activated. When CPU 2A determines that the synchronization application has been activated (YES in step S100), CPU 2A switches control to step S101. If not (NO in step S100), CPU 2A executes the process of step S100 again.

  In step S101, the CPU 2A determines whether a nearby mobile communication terminal has been detected. When CPU 2A determines that a nearby mobile communication terminal has been detected (YES in step S101), CPU 2A switches control to step S102. If not (NO in step S101), CPU 2A returns control to step S100.

  In step S <b> 102, the CPU 2 </ b> A determines whether a user operation for a moving image has been received as the reception unit 112 (see FIG. 5). CPU2A switches control to step S104, when it is judged that user operation with respect to the moving image was received (in step S102 YES). If not (NO in step S102), CPU 2A executes step S102 again.

  In step S104, the CPU 2A determines the type of user operation. When the type of the user operation is a synchronization application end operation, the CPU 2A switches the control to step S110. When the type of user operation is a moving image playback operation, the CPU 2A switches the control to step S120. When the type of user operation is a moving image stop operation, the CPU 2A switches the control to step S130. When the type of user operation is an operation for changing the playback position of a moving image, the CPU 2A switches control to step S140.

  In step S110, CPU 2A transmits a synchronization application termination command to portable communication terminal 100B.

  In step S112, the CPU 2A ends the running synchronous application.

  In step S120, CPU 2A determines the playback start time of the moving image as display control unit 114 (see FIG. 5), and transmits the playback start time and the playback start command of the moving image to mobile communication terminal 100B.

  In step S122, the CPU 2A waits as the display control unit 114 until the time measured by the clock function of the mobile communication terminal 100A reaches the determined reproduction start time.

  In step S <b> 124, the CPU 2 </ b> A starts playing the moving image on the display unit 5 </ b> A (see FIG. 1) as the display control unit 114.

  In step S130, the CPU 2A stops the reproduction of the moving image on the display unit 5A as the display control unit 114.

  In step S132, the CPU 2A transmits, as the display control unit 114, a moving image stop command and a stop time to the mobile communication terminal 100B.

  In step S140, the CPU 2A, as the display control unit 114, determines the playback start time of the moving image, and transmits the playback start time, the playback start command of the moving image, and the playback start position of the moving image after the change to the mobile communication terminal 100B. .

  In step S142, the CPU 2A waits as the display control unit 114 until the time measured by the clock function of the mobile communication terminal 100A reaches the determined reproduction start time.

  In step S144, the CPU 2A starts the reproduction of the moving image on the display unit 5A from the reproduction start position after the change as the display control unit 114.

[Control structure of portable communication terminal 100B]
With reference to FIG. 7, a control structure of portable communication terminal 100B will be described. FIG. 7 is a flowchart showing a part of processing executed by mobile communication terminal 100B. The processing in FIG. 7 is realized by the CPU 2B (see FIG. 8) of the mobile communication terminal 100B executing the program. In other aspects, some or all of the processing may be performed by circuit elements or other hardware.

  In step S150, the CPU 2B determines whether or not an application for realizing synchronized playback (that is, a synchronized application) is activated. When CPU 2B determines that the synchronization application is activated (YES in step S150), CPU 2B switches control to step S152. If not (NO in step S150), CPU 2B executes the process of step S150 again.

  In step S152, the CPU 2B determines whether a nearby mobile communication terminal has been detected. When CPU 2B determines that a nearby mobile communication terminal has been detected (YES in step S152), control is switched to step S154. If not (NO in step S152), CPU 2B returns control to step S150.

  In step S154, CPU 2B determines whether or not an instruction for a moving image has been received from portable communication terminal 100A. CPU2B switches control to step S160, when it is judged that the command with respect to a moving image was received from portable communication terminal 100A (in step S154 YES). If not (NO in step S154), CPU 2B executes the process of step S154 again.

  In step S160, CPU 2B determines the type of command received from portable communication terminal 100A. When the command is a synchronous application end command, the CPU 2B switches the control to step S162. When the command is a video playback command, the CPU 2B switches the control to step S164. If the instruction is a moving picture stop instruction, the CPU 2B switches the control to step S166. If the command is a command to change the playback position of the moving image, the CPU 2B switches the control to step S168.

  In step S162, the CPU 2B ends the running synchronous application.

  In step S164, the CPU 2B starts the playback of the moving image when the time measured by the clock function of the mobile communication terminal 100B reaches the playback start time designated by the mobile communication terminal 100A.

  In step S166, the CPU 2B returns the reproduction of the moving image to the stop position designated from the mobile communication terminal 100A, and stops the reproduction of the moving image.

  In step S168, when the time measured by the clock function of the mobile communication terminal 100B reaches the playback start time specified by the mobile communication terminal 100A, the CPU 2B plays the video from the start position specified by the mobile communication terminal 100A. Start.

[Hardware configuration]
With reference to FIG. 8, an example of a hardware configuration of mobile communication terminals 100A and 100B (hereinafter also referred to as “mobile communication terminal 100”) according to the first embodiment will be described. FIG. 8 is a block diagram illustrating a main hardware configuration of the mobile communication terminal 100. As shown in FIG. 8, the mobile communication terminal 100 includes a ROM (Read Only Memory) 1, a CPU 2, a RAM (Random Access Memory) 3, a network I / F (interface) 4, a display unit 5, A touch sensor 6, a clock unit 7, and a storage device 20 are included.

  The ROM 1 stores an operating system, a control program executed by the mobile communication terminal 100A, and the like. The CPU 2 controls the operation of the mobile communication terminal 100A by executing various programs such as an operating system and a control program for the mobile communication terminal 100A. The RAM 3 functions as a working memory and temporarily stores various data necessary for program execution.

  An antenna (not shown) or the like is connected to the network I / F 4. The mobile communication terminal 100 communicates with other communication devices via the antenna. Other communication devices include, for example, mobile communication terminals such as smartphones, servers, and the like. The communication is realized by, for example, Bluetooth (registered trademark) or Wi-Fi (registered trademark). Mobile communication terminal 100 may be configured to download control program 21 according to the present embodiment from a server via an antenna.

  The display unit 5 includes a liquid crystal display, an organic EL (Electro Luminescence) display, or other display devices. The display unit 5 is configured as a touch panel in combination with the touch sensor 6. Thereby, the user can perform an operation on the moving image by a touch operation.

  The clock unit 7 is a function for measuring time. The time of the clock unit 7 is synchronized with other mobile communication terminals. The time of the clock unit 7 is synchronized at an arbitrary timing. As time synchronization means with other mobile communication terminals, synchronization means such as NTP may be used. The clock unit 7 may be substituted with a clock function of the CPU 2.

  The storage device 20 includes a storage medium such as eMMC (Embedded MultiMediaCard). The storage device 20 stores a control program 21, a moving image 51, and the like according to the present embodiment. The control program 21 and the moving image 51 may be stored in the ROM 1, the storage area of the CPU 2, the RAM 3, other devices (for example, an external server), or the like.

  The control program 21 may be provided by being incorporated in a part of an arbitrary program, not as a single program. In this case, image processing according to the present embodiment is realized in cooperation with an arbitrary program. Even such a program that does not include some modules does not depart from the spirit of portable communication terminal 100A according to the present embodiment. Furthermore, part or all of the functions provided by control program 21 according to the present embodiment may be realized by dedicated hardware. Furthermore, the mobile communication terminal 100A and the server may cooperate to realize image processing according to the present embodiment. Furthermore, the mobile communication terminal 100A may be configured in a so-called cloud service form in which at least one server realizes image processing according to the present embodiment.

[Brief Summary]
As described above, mobile communication terminal 100A according to the present embodiment prevents moving image display from being shifted between mobile communication terminals 100A and 100B when an operation on the moving image is detected during synchronous playback.

  For example, when the mobile communication terminal 100A receives a video stop operation, the mobile communication terminal 100A stops the video display on the display unit 5A (see FIG. 1) and transmits information indicating the video stop position to the mobile communication terminal 100B. To do. The mobile communication terminal 100B stops the reproduction of the moving image after returning the moving image display on the display unit 5B (see FIG. 1) to the stop position.

  Thereby, the display of the mobile communication terminals 100A and 100B is not shifted by the stop operation. As a result, the mobile communication terminals 100A and 100B can reproduce the moving image without deviation at the next reproduction.

<Second Embodiment>
In the example of FIG. 1, the example in which the operation image 70 is displayed on the display unit 5A has been described. However, the operation image 70 may be displayed on the display unit 5B or straddles the display unit 5A and the display unit 5B. May be displayed.

  When the operation image 70 is displayed across the display unit 5A and the display unit 5B, when a user operation for a moving image is detected on the display unit 5A, the mobile communication terminal 100A transmits the content of the user operation to the mobile communication. Transmit to terminal 100B. When a user operation on the moving image is detected on the display unit 5B, the mobile communication terminal 100B transmits the content of the user operation to the mobile communication terminal 100A.

<Third Embodiment>
Although the example which implement | achieves synchronous reproduction | regeneration with two portable communication terminals 100A and 100B was demonstrated above, synchronous reproduction | regeneration may be implement | achieved by three or more portable communication terminals. In this case, the arrangement of three or more mobile communication terminals is arbitrary. For example, when synchronous playback is realized by four mobile communication terminals, these mobile communication terminals may be arranged in a line or in two lines.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  1 ROM, 2, 2A, 2B CPU, 3 RAM, 4 Network I / F, 5, 5A, 5B Display unit, 6 Touch sensor, 7 Clock unit, 20 Storage device, 21 Control program, 50A, 50B Icon, 51 Movie , 56 Rewind button, 57 Play button, 58 Pause button, 59 Stop button, 60 Fast forward button, 62 Seek bar, 70 Operation image, 100, 100A, 100B Portable communication terminal, 112 Reception unit, 114 Display control unit.

Claims (5)

A mobile communication terminal,
A first display unit capable of displaying a video;
An accepting unit for accepting an operation on the video;
A communication unit for communicating with another mobile communication terminal including the second display unit;
A display control unit for synchronizing with the other mobile communication terminal by communication with the other mobile communication terminal, and displaying the moving image on the screen using the first display unit and the second display unit as one screen; With
The display control unit
Based on the reception unit receiving an operation for stopping the reproduction of the moving image, the display of the moving image on the first display unit is stopped and information indicating the stop position of the moving image is transmitted to the other mobile communication. A mobile communication terminal that sends to a terminal.   2. The mobile communication according to claim 1, wherein the display control unit causes the other mobile communication terminal to stop the reproduction of the moving image after returning the display of the moving image on the second display unit to the stop position. Terminal. The operation on the video includes a playback operation of the video,
The display control unit
Based on the reception unit receiving the reproduction operation, the information indicating the reproduction start timing of the video is transmitted to the other mobile communication terminal,
The mobile communication terminal according to claim 1 or 2, wherein the reproduction of the moving image on the first display unit and the second display unit is started based on the timing. The operation for the moving image includes an operation for changing the reproduction position of the moving image,
The display control unit
Based on the reception unit receiving an operation for changing the playback position, information indicating the playback start timing of the moving image and information indicating the playback position after the change are transmitted to the other mobile communication terminal. Send
4. The mobile communication terminal according to claim 1, wherein the reproduction of the moving image on the first display unit is started from the reproduction position after the change based on the timing. 5. A method for controlling a mobile communication terminal including a first display unit capable of displaying a moving image,
The control method is:
Receiving an operation on the video;
Communicating with another mobile communication terminal comprising a second display unit;
Synchronizing with the other mobile communication terminal by communication with the other mobile communication terminal, and displaying the moving image on the screen with the first display unit and the second display unit as one screen;
Based on receiving the operation for stopping the reproduction of the moving image in the accepting step, the display of the moving image on the first display unit is stopped and information indicating the stop position of the moving image is transmitted to the other mobile communication. Transmitting to the terminal.