JP2009060512A - Portable terminal, reproduction apparatus, content reproduction system, content reproduction program, computer readable recording medium, and control method of portable terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily continue viewing without requiring a large-scaled device such as a content server. <P>SOLUTION: A portable terminal comprises: a terminal reproduction control section 2; an intra-area device specification section 6 for specifying a small-sized TV 20A - stereo 20B present within a predetermined area; a compatible device specification section 9 for specifying a small-sized TV 20a compatible with a content protocol of movie contents being reproduced by the terminal reproduction control section 2, from the small-sized TV 20A - stereo 20B specified by the intra-area device specification section 6; and a terminal transmission control section 10 for transmitting data of the movie contents to the small-sized TV 20A specified by the conformable device specification section 9. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a portable terminal capable of reproducing content, and more specifically, uses content being played on a portable terminal such as a cellular phone in a playback device such as a nearby AV (audio and visual) device. The present invention relates to a portable terminal that can enjoy continuous viewing of the content on a playback device such as the AV device.

  In recent years, portable content playback that can store high-capacity and high-quality sound by storing a large-capacity storage medium such as a hard disk disc drive (HDD) and storing content such as audio and video in the storage medium. Terminals are becoming popular.

  With such a portable content playback terminal, the user can enjoy the content outside the home in the same manner as when using an AV device in the home. However, when viewing content on a portable content playback terminal when going out, in order to continuously view the continuation of the content on the home AV device when returning home, the user himself / herself at the home AV device There is a problem in that it is necessary to respecify the content and the playback position thereof.

  For example, when you go home while listening to music with a mobile player outside the home, when you listen to the continuation of the music you were listening to in the stereo in the room, you can stop the mobile player and record the music stored There is a problem in that the troublesome work of moving the medium or the like to a stereo, etc., and specifying and reproducing the music or the reproduction position again is required.

  As an example of the prior art for solving such problems, a viewing continuation method using a viewing continuation control server, a switching source terminal, and a switching destination terminal is disclosed in Patent Document 1.

  In this viewing continuation method, the viewing continuation control server acquires terminal information from the presence server, for example, by access from the switching destination terminal when switching terminals. Also, the viewing continuation control server displays the user-owned terminal list on the switching destination terminal, and when the user selects, for example, a TV terminal as the switching source terminal, the viewing history management server displays the identifier of the content viewed on the TV terminal. Inquires about the break point.

  Further, the viewing continuation control server searches the location of the suitable content from the location resolution server based on the content identifier and the switching destination terminal information, and sends the location and the interruption point to the switching destination terminal. It has become. Further, the switching destination terminal can access the content server at the sent location, receive the stream video, and reproduce it from the interruption point.

  According to the above viewing continuation method, for example, it is possible to continuously view a broadcast program viewed on a television terminal at home by PDA (personal digital assistance) or the like when going out. In addition, it is possible to continuously view a program viewed on a PDA or the like while going out on a personal computer (personal computer) installed in a hot spot.

  For example, when a user wants to switch from a TV terminal to a PDA, the user automatically selects the TV terminal that is the switching source and presses the switch button to automatically continue the video of the TV program viewed on the TV terminal on the PDA screen. Can be played.

  Furthermore, when entering a hotspot while viewing the video on the PDA, the network recognizes it and displays the hotspot entry on the PDA screen, and displays a group of terminals that can play back the video on the PC in the store. If you select the computer you want to switch to and press the switch button, you can play the continuation of the video on the computer screen.

  Patent Document 2 discloses a content continuous viewing system including a mobile terminal, a content server, and a content playback terminal as another example of the conventional technology.

  In this content continuous viewing system, first, identification information and a playback position of a specific content viewed are held in a mobile terminal. Next, when a continuous playback request is received from the user, the mobile terminal obtains the storage location of the specific content in the content server, and the storage location information and the continuous playback instruction are sent to the content playback terminal. To do. Thereby, the content reproduction terminal can read out specific content from the storage location of the content server and perform continuous reproduction.

According to the content continuous viewing system described above, when the mobile terminal holds the identification information and the playback position of the specific content viewed and performs continuous playback, the content server identifies the content playback terminal from the mobile terminal to the content playback terminal. Since the content reproduction terminal reads out the specific content from the storage location of the content server based on this instruction and continuously reproduces the content, the content reproduction terminal notifies the other content reproduction device. It is possible to continue watching specific content.
JP 2004-336310 (released on November 25, 2004) Japanese Patent Application No. 2007-74529 (published March 22, 2007)

  However, in both the viewing continuation method disclosed in Patent Document 1 and the content continuation viewing system disclosed in Patent Document 2, the presence of a content server is an essential configuration. Then, in order to continue viewing the content, it is necessary to store and store the content data in the content server.

  Therefore, in the conventional viewing continuation method and the content viewing continuation system, it is necessary to prepare a content server in addition to the content playback terminal and the playback device. Therefore, the system for continuing viewing of the content becomes large-scale. However, there is a problem that it is not possible to enjoy watching the content easily.

  The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide a portable terminal and the like that can easily enjoy viewing without requiring a large-scale device such as a content server. There is to do.

  In order to solve the above problems, the portable terminal of the present invention is a content reproduction terminal capable of reproducing content, and terminal reproduction control means for reproducing the content, and one or more communications existing in a predetermined area The in-area device specifying means specifies an in-area device specifying means for specifying a possible playback device, and a playback device that conforms to a content protocol that is a rule relating to the playback content being played back by the terminal playback control means. And an appropriate device specifying means for specifying from the playback device, and a data transmission control means for transmitting data of the playback content to the playback device specified by the compatible device specifying means.

  In addition, a mobile terminal control method according to the present invention is a mobile terminal control method capable of playing back content in order to solve the above-described problem. An in-region device specifying step for specifying one or more communicable playback devices, and a playback device that conforms to a content protocol that is a rule regarding the playback content being played back in the terminal playback control step, An adaptive device specifying step that is specified from the playback device specified in the internal device specifying step; and a data transmission control step of transmitting data of the playback content to the playback device specified in the compatible device specifying step. It is said.

  Here, the “portable terminal” means a portable terminal having at least one or more communication functions (communication function: other than an existing carrier network such as CDMA (Code Division Multiple Access)). It is a concept that includes a PC (personal computer) with a communication function, for example, a portable PC that can only perform IP communication. Furthermore, it is a concept that includes AV equipment with a communication function (including a navigation system).

  In the configuration and method, the mobile terminal can play back the content. Here, “content” includes text data such as images, moving images, music, audio data, and e-mails, data posted on the WEB page, a finder screen at the time of starting up a photo or camera, and 1seg, 3seg, It is a concept that includes various information to be processed by software, such as broadcast contents such as terrestrial digital broadcasting.

  “Playback” is a broad concept that includes “display” such as images, photos, viewfinder screens when starting up the camera, mail text, and WEB pages, and “playback” such as video, music, and audio. .

  The portable terminal of the present invention includes terminal reproduction control means, in-region apparatus specifying means, compatible apparatus specifying means, and data transmission control means.

  The mobile terminal control method of the present invention is a method including a terminal reproduction control step, an in-region device specifying step, a compatible device specifying step, and a data transmission control step.

  In the terminal reproduction control means or the terminal reproduction control step, the content is reproduced. Next, in the in-area device specifying means or the in-area device specifying step, one or more playback devices that can communicate with each other in the predetermined area are specified.

  Here, the “specification” of the playback device refers to detection by a physical device such as direct detection of the playback device by wireless communication such as Bluetooth (registered trademark) or Felica, and a base station such as GPS (global positioning system) or femto communication. The absolute position of the portable terminal is specified by information from the PC and power line communication (PLC), and a reference table (information indicating the relationship between the absolute position and the predetermined area and information indicating the relationship between the predetermined area and the playback device) is used. It is a concept that broadly includes identification by searching by information processing.

  Next, in the compatible device specifying means or the compatible device specifying step, a playback device that conforms to a content protocol that is a rule relating to the playback content being played back by the terminal playback control means or in the terminal playback control step is stored in the region. It is specified by the device specifying means or from the playback device specified in the in-region device specifying step.

  Here, the “content protocol” is a rule regarding contents such as a reproduction method, a data format, a data compression method, and a communication protocol. For example, as a rule of the reproduction method, a bit rate information standard can be exemplified.

  Also, as the data format of the content and the data compression method, AAC (Advanced Audio Coding) and WAV (Windows (registered trademark) audio data standard file formats related to music are also called WAVE files and WAVE sound files. ) And MP3 (MPEG-1 Audio Layer 3).

  In addition, the data format and data compression format of the video content include Flash related to video (Web animation creation software sold by Macromedia), MP4 (MPEG-1 Audio Layer 4), and MPEG2 (ITU) -T Standard that compresses and decompresses video and audio, recommended as standard technology by "International Telecommunication Union Telecommunication Standardization Sector" and ISO "International Standard." Currently used for media such as video CD in MPEG format And MPEG2 used for DVD and broadcast media, network distribution, MPEG4 for portable terminals, etc.).

  Furthermore, examples of the communication system protocol (communication protocol) include Bluetooth, Felica, PLC, Wireless LAN (wireless LAN: WLAN), IrDA (infrared wireless), IrSS (infrared wireless), and WCDMA (communication network).

  In the data transmission control means or the data transmission control step, the reproduction content data is transmitted by the compatible device specifying means or to the playback device specified in the compatible device specifying step. Examples of the communication scheme of the data transmission control means include WCDMA (wideband code division multiple access) / femto communication, PLC, wireless LAN, Bluetooth, Felica, IrDA, and IrSS.

  According to the above configuration or method, the mobile terminal itself (hereinafter referred to as “own terminal”) identifies a playback device that exists in a predetermined area and conforms to the content protocol of the playback content, and the specified playback device The playback content data is transmitted. Therefore, it is not necessary to prepare a special content server other than the own terminal for storing / accumulating the playback content.

  Therefore, it is possible to easily enjoy viewing and listening between the portable terminal and the playback device without requiring a large-scale device such as a content server.

  Here, as described above, in the conventional viewing continuation method and content viewing continuation system, in addition to the content data stored in the content playback terminal, other data corresponding to the content is stored in the content server. It needs to be accumulated.

  Then, since it is necessary to store the content in at least two devices, that is, the content reproduction terminal and the content server, it is necessary to copy data of one content in order to continue viewing.

  Therefore, in the conventional viewing continuation method and content viewing continuation system, digital rights management technology (DRM: digital rights management) is applied to prevent infringement of copyright and the like, and copying is prohibited. There is a problem that viewing and listening of the same content cannot be continued unless two or more of the same content are obtained (hereinafter simply referred to as “DRM problem”). For example, data such as music / video with copyright information such as SD-Audio (satellite digital audio broadcast) is not permitted to be copied, and only data can be moved.

  In order to solve such a DRM problem, in addition to the above configuration, the mobile terminal of the present invention is configured such that the data transmission control unit transmits data of the playback content to the playback device of the transmission destination. It is preferable to perform recording in a state where recording is impossible.

  According to the above configuration, the data transmission control means transmits the reproduction content data in a state in which the reproduction content cannot be recorded in the reproduction apparatus as the transmission destination. That is, the playback content data is transmitted while the playback content data remains (stored) in the terminal itself, and the playback device is in a state where the playback content cannot be recorded.

  Therefore, only one device of the own terminal stores the playback content. That is, the reproduced content is not duplicated. As described above, even in the case of content that has been subjected to digital rights management technology to prevent infringement of copyright and the like and whose copying is prohibited, it is possible to easily enjoy viewing and listening.

  In addition to the above configuration, the portable terminal of the present invention further includes terminal movement detection means for detecting movement of the terminal outside the predetermined range, and the data transmission control means exists in the predetermined area. When the playback content data is transmitted to one or more communicable playback devices, and the terminal movement detection means detects that the playback content has moved outside the predetermined range, It is preferable to stop transmission of playback content data.

  According to the said structure, a terminal movement detection means detects the movement to the outside of the predetermined range of an own terminal. Here, the “predetermined range” may or may not coincide with the “predetermined region”. For example, when the identification of the playback device by the local device identification unit of the terminal is performed by detection by a physical device such as direct detection by wireless communication such as Bluetooth (registered trademark), Felica, etc., the “predetermined region” "Is the range in which the terminal itself can communicate wirelessly with the playback device. Such a range can be determined in advance based on the radio wave intensity of the wireless communication, for example, when the playback apparatus notifies its own terminal of the presence of the device by wireless communication.

However, in this case, the range in which the own terminal can perform wireless communication is an approximately spherically symmetric range with respect to the position of the own terminal, and thus the own terminal cannot move out of the range. Therefore, in this case, the “predetermined range” is a concept that cannot match the “predetermined region”.
The “sphere-symmetrical range” is a circular range if it is two-dimensional and a spherical range if it is three-dimensional.

  That is, in such a case, for example, a fixed area (coordinates having a predetermined reference position as an origin is determined in advance) is set as a “predetermined range”, and information indicating the “predetermined range” is stored in advance. It is memorized in its own terminal.

  Then, the “absolute position” of the own terminal is specified by information from a base station such as GPS and femto communication, and a reference table (relationship between the absolute position and the “predetermined range”) stored in the own terminal in advance is specified. When the “absolute position” is out of the “predetermined range” by information processing by a computer using information), the terminal movement detection means detects the movement of the terminal out of the predetermined range. What is necessary is just to employ | adopt the structure of doing.

  On the other hand, the playback device is specified by the local device specifying means of the own terminal, the absolute position of the own terminal is specified by information from the base station such as GPS and femto communication, PLC, etc. In this case, the “predetermined range” may coincide with the “predetermined area”.

  In the case of using the PLC, for example, a reference table is created with a fixed “predetermined area” (or “predetermined range”) in a room where a specific outlet or a desktop holder for charging a mobile phone exists. You should do it.

  Further, according to the configuration, the data transmission control unit moves the terminal when the data of the reproduction content is transmitted to one or more communicable reproduction devices existing in the predetermined area. When it is detected by the detection means that the movement is outside the predetermined range, transmission of the reproduction content data to the reproduction apparatus is stopped.

  In other words, according to the above-described configuration, transmission of reproduction content data from the terminal itself to the reproduction apparatus is merely stopped. Therefore, since playback on the terminal and the playback device can be controlled while leaving “playback content” in the terminal, it is not necessary to copy the playback content, and the DRM problem can be solved.

  In order to solve the DRM problem, in addition to the above configuration, the mobile terminal of the present invention includes a recording unit in which the reproduction content is recorded, recording of the reproduction content in the recording unit, and the recording unit. Recording management means for managing erasure of the recorded reproduction content, and the recording management means records in the recording unit when the data transmission control means completes transmission of the data of the reproduction content. It is preferable to delete the reproduced content data.

  According to the above configuration, the playback content is recorded in the recording unit of the terminal before the playback content is transmitted to the playback device. However, when the data transmission control unit completes the transmission of the reproduction content data, the recording management unit erases the reproduction content data recorded in the recording unit.

  That is, when the transmission of the playback content data is completed, the playback content data of the terminal itself is erased. Therefore, even if the playback content is subsequently recorded on the playback device, the playback content is copied. Don't be. Therefore, the DRM problem can be solved also by the configuration.

  Further, in addition to the above configuration, the portable terminal of the present invention further includes a return instruction means for instructing the playback device to which the playback content transmitted by the data transmission control means is to return the playback content, The adapting device specifying unit causes the data transmission control unit to transmit a return instruction signal instructing the return of the reproduction content when receiving a return instruction of the reproduction content by the user via the return instruction unit. It is preferable.

  According to the above configuration, there is provided a return instruction means for instructing the playback apparatus to which the playback content transmitted by the data transmission control means is to return the playback content. Note that “return” means that the playback device of the transmission destination sends back the playback content to the mobile terminal and then erases the data of the playback content.

  Therefore, the user can instruct the playback apparatus to which the playback content is transmitted via the return instruction means to return the playback content.

  Further, when the compatible device specifying means receives a return instruction of the playback content from the user via the return instruction means, the compatible device specifying means sends a return instruction signal for instructing the data transmission control means to return the playback content. It is to be sent.

  Therefore, the portable terminal can receive the return of the playback content from the playback device to which the playback content is transmitted in response to the return instruction from the user.

  As described above, it is possible to exchange the playback content between the portable terminal and the playback device without using a special device called a content server.

  In the mobile terminal of the present invention, in addition to the above configuration, the terminal playback control means may be configured such that the playback device specified by the in-region device specifying means does not include a playback device that conforms to the content protocol. In this case, it is preferable that the reproduction content is continuously reproduced in the terminal itself.

  According to the above configuration, when there is no playback device that conforms to the content protocol among the playback devices specified by the in-region device specifying means, the playback content is continuously played back by the own terminal. It has become.

  Therefore, the playback content being viewed is not canceled, so that the playback content can be enjoyed continuously.

  In addition to the above-described configuration, the portable device of the present invention may be configured such that the compatible device specifying unit sets the content protocol of the playback content based on the compatibility relationship information indicating the compatibility relationship between the playback device and the content protocol. It is preferable to identify a suitable playback device.

  Here, as examples of the “compatibility relationship information”, the compatibility relationship between the rules regarding the playback method of the playback content and the playback device, the compatibility relationship with the playback device regarding the data format of the playback content, and the playback device regarding the data compression method of the playback content And a compatible relationship regarding the communication protocol between the terminal and the playback device. It should be noted that it is only necessary to appropriately determine which of these compatibility relationships is adopted as “relevance relationship information” within a range in which the playback content can be continuously viewed.

  In addition to the above configuration, the portable terminal of the present invention includes a display unit that displays one or more playback device candidates specified by the compatible device specifying unit, and a playback device displayed on the display unit. Device selection means for the user to select a playback device from the candidates, and the data transmission control means transmits the data of the playback content to the playback device selected by the user via the device selection means. It is preferable.

  According to the above configuration, the display unit displays one or more playback device candidates specified by the matching device specifying unit, so that the user can know the playback device candidates.

  Further, the device selection means is for allowing a user to select a playback device from the playback device candidates displayed on the display unit, and the data transmission control means includes the device selection means. The playback content data is transmitted to the playback device selected by the user.

  Therefore, the user can select a desired playback device from one or more playback device candidates displayed on the display unit and enjoy continuous playback of the playback content.

  In addition to the above-described configuration, the portable terminal of the present invention may be configured such that the data transmission control unit includes a plurality of playback devices specified by the compatible device specifying unit. Preferably, the reproduction content data is transmitted to the reproduction apparatus having the highest priority.

  According to the above configuration, the data transmission control means transmits the reproduction content data to a reproduction device having the highest priority among the plurality of reproduction devices.

  Therefore, since the user can set the priority order of the playback devices in advance for continuous viewing of specific playback content, the user can enjoy continuous playback of playback content in a better environment desired by the user. Can do.

  Further, in addition to the above configuration, the portable terminal of the present invention may be configured such that the data transmission control means includes a plurality of communication methods when there are a plurality of communication methods for the playback device specified by the compatible device specifying means. Of these communication methods, it is preferable to transmit the reproduction content data by a communication method having the highest priority in advance.

  According to the above configuration, the data transmission control means transmits the reproduction content data by a communication method having a highest priority among predetermined communication methods.

  Therefore, in order to continuously view specific playback content, the user can predetermine the priority of the communication method, so that the user can enjoy continuous playback of the playback content in a better communication state desired by the user. Can do.

  In addition to the above, the priority criteria include the size of the display screen of the playback device, the order of performance such as sound quality and image quality, the order of the playback device closest to the own terminal, the playback device used previously and the playback device. The number of times of selection, the connection status with the playback device (power supply of the playback device, remaining battery level, communication status with the playback device), and the like are also conceivable.

  In the above description, the case where the playback content is transmitted to the playback device with the highest priority and the playback device with the communication system with the highest priority is shown. However, the playback content may be transmitted in order from the highest priority. Conceivable. For example, when it is impossible to transmit the playback content to the playback device with the highest priority due to the connection status between the mobile terminal and the communication device, the playback content is next sent to the playback device with the highest priority. The data transmission control means may be configured to transmit.

  In the mobile terminal of the present invention, in addition to the above configuration, the reproduction content includes sound content used for sound reproduction and image content used for image reproduction. When a plurality of playback devices are specified, the data transmission control means transmits the sound content data to a playback device capable of playing back the sound content among the plurality of playback devices, and It is preferable to transmit the image content data to a playback apparatus capable of playing back the image content.

  According to the above configuration, when the reproduction content includes sound content used for sound reproduction and image content used for image reproduction, the data transmission control means includes a plurality of reproduction devices, The sound content data is transmitted to the reproduction device capable of reproducing the sound content, and the image content data is transmitted to the reproduction device capable of reproducing the image content.

  Therefore, for example, in the case of movie content, images can be continuously viewed on a high-quality and large-screen display, and audio can be continuously viewed on an audio device with high sound quality and volume. You can enjoy watching the playback content below.

  In addition to the above configuration, in the portable terminal of the present invention, it is preferable that the data transmission control unit further transmits information indicating a reproduction position of the reproduction content when transmitting the data of the reproduction content.

  According to the configuration, the playback device can obtain information indicating the playback position of the playback content.

  In addition to the above configuration, the playback device of the present invention is a playback device capable of playing back content, comprising communication control means for receiving data of the playback content transmitted from the mobile terminal, It is preferable that the apparatus includes a device reproduction control unit that reproduces the reproduction content that has been received by the communication control unit.

  In addition to the above configuration, the playback device of the present invention is a playback device capable of playing back content, comprising communication control means for receiving data of the playback content transmitted from the mobile terminal, It is preferable that the apparatus includes a device reproduction control unit that performs reproduction of the reproduction content received by the communication control unit from a reproduction start position determined from information indicating the reproduction position.

  According to the configuration, the playback device of the present invention can provide a playback device suitable for continuous viewing of playback content from the mobile terminal. In particular, the apparatus playback control means interrupts the playback content being played back, since the playback content that has been received by the communication control means is played from the playback start position determined from the information indicating the playback position. You can enjoy continuous viewing without any problems.

  Note that the playback start position is determined from information indicating the playback position (or interruption point), but the playback position and the playback start position need not match. For example, the reproduction start position may be shifted from the reproduction position by a predetermined time (or distance). Thereby, it is possible to reproduce the overlap (simultaneously for each reproducing apparatus). “Overlap playback” is a function for simultaneously playing back content on a portable terminal and a playback device for a predetermined time. Here, the “predetermined time” is a time of about several seconds including 0 seconds that do not overlap at all. The overlapping time can be exemplified by the overlap time between the time until the mobile terminal stops playback and the time after the playback start of the playback device. For example, in a general folding type (clamshell) terminal, when opened from a closed state, the main liquid crystal is displayed and the display disappears after a certain time. Similarly to this, the predetermined time is preferably about 90 seconds at the longest.

  Further, the “predetermined time” may be determined according to the display time of the display unit of the mobile terminal. As described above, although overlap playback is performed, the overlap playback may be terminated in conjunction with closing the clamshell or disappearing of the display on the display unit.

  In addition to the above configuration, the playback device of the present invention is a playback device capable of playing back content, and communication control means for transmitting / receiving data of the playback content to / from the portable terminal, An apparatus playback control means for playing back the playback content received by the communication control means, a recording unit for recording the playback content received by the communication control means, and the communication control means for the playback content. It is preferable to include content management means for erasing data of the playback content recorded in the recording unit when data transmission is completed.

  In addition to the above configuration, the playback device of the present invention is a playback device capable of playing back content, and communication control means for transmitting / receiving data of the playback content to / from the portable terminal, The playback content received by the communication control means is recorded from the playback start position determined from the information indicating the playback position, and the playback content received by the communication control means is recorded. It is preferable that the recording control unit further includes a content management unit that erases the reproduction content data recorded in the recording unit when the communication control unit completes transmission of the reproduction content data.

  According to the configuration, when the communication control unit completes the transmission of the reproduction content data, the content management unit deletes the reproduction content data recorded in the recording unit. .

  Therefore, when the data transmission control unit completes transmission of the reproduction content data, the recording management unit erases the reproduction content data recorded in the recording unit. When used in combination with a terminal, it is possible to completely solve the DRM problem and enjoy continuous viewing of the playback content. In particular, the apparatus playback control means interrupts the playback content being played back, since the playback content that has been received by the communication control means is played from the playback start position determined from the information indicating the playback position. You can enjoy continuous viewing without any problems.

  Note that the playback start position is determined from information indicating the playback position (or interruption point), but the playback position and the playback start position need not match. For example, the reproduction start position may be shifted from the reproduction position by a predetermined time (or distance). Thereby, it is possible to reproduce the overlap (simultaneously for each reproducing apparatus). “Overlap playback” is a function for simultaneously playing back content on a portable terminal and a playback device for a predetermined time. Here, the “predetermined time” is a time of about several seconds including 0 seconds that do not overlap at all. The overlapping time can be exemplified by the overlap time between the time until the mobile terminal stops playback and the time after the playback start of the playback device. For example, in a general folding type (clamshell) terminal, when opened from a closed state, the main liquid crystal is displayed and the display disappears after a certain time. Similarly to this, the predetermined time is preferably about 90 seconds at the longest.

  Further, the “predetermined time” may be determined according to the display time of the display unit of the mobile terminal. As described above, although overlap playback is performed, the overlap playback may be terminated in conjunction with closing the clamshell or disappearing of the display on the display unit.

  In addition to the above configuration, the playback device of the present invention, in addition to the above configuration, when the content management unit receives a return instruction signal instructing the return of the playback content received from the mobile terminal, It is preferable to transmit content data.

  According to the configuration, when the content management unit receives a return instruction signal instructing the return of the playback content received from the portable terminal, the content management unit causes the communication control unit to transmit the data of the playback content.

  Therefore, it is possible to provide a playback device suitable for a portable terminal that transmits playback content to the playback device and erases the playback content recorded on the terminal itself.

  In addition to the above configuration, the content playback system of the present invention preferably includes the portable terminal and the playback device.

  That is, a content reproduction system in which the portable terminal and the reproduction device are appropriately combined also falls within the scope of the present invention.

  The mobile terminal, the playback device, and the content playback system may be realized by a computer. In this case, the mobile terminal that realizes the mobile terminal and the like by the computer by operating the computer as the respective means. A control program such as a terminal, a content reproduction program, and a computer-readable recording medium recording the program also fall within the scope of the present invention.

  As described above, the portable terminal of the present invention includes a terminal playback control unit that plays back content, an in-region device specifying unit that specifies one or more communicable playback devices in a predetermined region, and the terminal A matching device specifying means for specifying a playback device that conforms to a content protocol, which is a rule relating to playback content being played back by the playback control means, from the playback device specified by the in-region device specifying means; and the matching device specification And a data transmission control means for transmitting the reproduction content data to the reproduction apparatus specified by the means.

  In addition, as described above, the mobile terminal control method of the present invention includes a terminal playback control step for playing back content, and an in-region device specification that specifies one or more communicable playback devices existing in a predetermined region. And a compatible device specifying step for specifying, from the playback device specified in the in-region device specifying step, a playback device that conforms to a content protocol that is a rule relating to the playback content being played back in the terminal playback control step; And a data transmission control step of transmitting the reproduction content data to the reproduction device identified in the compatible device identification step.

  Therefore, there is an effect of providing a portable terminal and a control method thereof that can easily enjoy watching without requiring a large-scale device such as a content server.

  An embodiment of the present invention will be described below with reference to FIGS.

[1. Outline of Configuration of Content Playback System 30]
First, based on FIG. 1, the outline | summary of a structure of the content reproduction system 30 which is an example of embodiment of this invention is demonstrated. FIG. 1 is a block diagram showing a configuration of the content reproduction system 30.

  As shown in FIG. 1, the content reproduction system 30 includes a mobile terminal 1, a small TV (reproduction device) 20A, and a stereo (reproduction device) 20B. In this example, an example in which two playback devices are included has been described. However, one playback device may be included, or three or more playback devices may be included.

  As shown in FIG. 1, the portable terminal 1 includes a terminal reproduction control unit (terminal reproduction control unit) 2, a terminal speaker 3, a terminal display (display unit) 4, a content protocol identification unit (compatible device identification unit) 5, Device specifying unit (in-region device specifying means) 6, position detecting unit (in-region device specifying means) 7, device detecting unit (in-region device specifying means) 8, compatible device specifying unit (compatible device specifying means) 9, terminal transmission A control unit (data transmission control unit) 10, a movement determination unit (terminal movement detection unit) 11, a terminal record management unit (record management unit) 12, an input control unit 13, a key switch (device selection unit, return instruction unit) 14, A microphone 15, a camera 16, a recording unit 17, and a terminal reception control unit 18 are provided.

  The small TV 20A includes a communication control unit (communication control unit) 21A, a content management unit (content management unit) 22A, a recording unit 23A, a reproduction control unit (device reproduction control unit) 24A, and a display 25A.

  The stereo 20B includes a communication control unit (communication control unit) 21B, a content management unit (content management unit) 22B, a recording unit 23B, a reproduction control unit (device reproduction control unit) 24B, and a speaker 25B.

  The mobile terminal 1 can play back content. Here, “content” includes text data such as images, videos, music, audio data, e-mails, data posted on the WEB page, a finder screen at the time of starting up a photo or camera, and 1seg, 3seg, and It is a concept that includes various information to be processed by software, such as broadcast content such as terrestrial digital.

  “Playback” is a broad concept that includes “display” such as images, photos, viewfinder screens when starting up the camera, mail text, and WEB pages, and “playback” such as video, music, and audio. .

  The terminal reproduction control unit 2 reproduces content, and controls the terminal speaker 3 to reproduce audio data, or controls the terminal display 4 to reproduce or display moving images, images, text data, and the like ( Play).

  The content protocol specifying unit 5 specifies a content protocol (hereinafter simply referred to as “content protocol”) that is a rule relating to the content being played back by the terminal playback control unit 2 (hereinafter also referred to as “playback content”). Is. The “content protocol” will be described in detail below.

  The in-area device specifying unit 6 specifies (or detects) one or more communicable small TVs 20A, stereos 20B, etc. existing in a predetermined area (predetermined area).

  Here, regarding the in-area device specifying unit 6, there are a case where the position detecting unit 7 is used to specify the small TV 20A / stereo 20B and a case where the device detecting unit 8 is used to specify the small TV 20A / stereo 20B. There are two forms, which will be described below.

  The compatible device specifying unit 9 selects a small TV 20A or a stereo 20B that conforms to a content protocol, which is a rule regarding the playback content being played back by the terminal playback control unit 2, as a small TV 20A / stereo 20B specified by the in-area device specifying unit 6. This is specified from the stereo 20B.

  In the following, for the sake of convenience, it is assumed that the user of the content playback system 30 is watching movie content (playback content) on the mobile terminal 1 as an example of playback content, and the compatible device specifying unit 9 performs the small TV 20A. Will be described as a playback device that conforms to the content protocol.

  The terminal transmission control unit 10 transmits movie content data to the small TV 20 </ b> A specified by the compatible device specifying unit 9. Examples of the communication method of the terminal transmission control unit 10 include WCDMA / femto communication, PLC, wireless LAN (wireless LAN: WLAN), Bluetooth, Felica, IrDA, and IrSS.

  The movement determination unit 11 detects movement of the mobile terminal 1 outside a predetermined range (predetermined range) described below.

  The terminal recording management unit 12 manages content such as recording of playback content in the recording unit 17 and erasing of playback content recorded in the recording unit 17.

  The input control unit 13 controls a key switch 14 that receives user operations, a microphone 15 that receives sound, and a camera 16 that captures an image or a photograph.

  The recording unit 17 records or previously records various data used in the mobile terminal 1. Examples of the recording unit 17 include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and a compact disk-ROM / MO / MD / digital video disk / compact disk-R. A disk system including an optical disk, a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM can be used.

  As shown in FIG. 1, the data recorded in the recording unit 17 includes a content migration table (conformance relationship information) and content data (reproduction content, movie content, music content, audio content, photo content, image content, Finder screen contents, mail contents, WEB page contents, etc.) are stored.

  In the following description, while the playback content remains on the mobile terminal 1 (while being stored in the recording unit 17 of the mobile terminal 1), the playback device receives the transmission of the playback content data and plays back the playback content as it is. When the playback content appears to have moved from the mobile terminal 1 to the playback device, as in the case where the playback content is viewed, the playback content actually moves from the mobile terminal 1 to the playback device (the recording unit of the mobile terminal 1). 17 may be erased and stored in the recording unit of the playback device). These cases are collectively referred to as “migration” of the playback content.

  The content migration table will be described below. As shown in FIG. 1, the relationship between “position information (absolute position) and area information (information indicating a predetermined area) / range information (information indicating a predetermined range) is shown. "Information indicating relationship between area information (predetermined area) and small TV 20A / stereo 20B etc.", "information indicating relationship between small TV 20A / stereo 20B etc. and content protocol", "small TV 20A / stereo" "Information indicating priority order such as 20B" and "Information indicating priority order according to communication method of small TV 20A / stereo 20B".

[2. Configuration of mobile terminal 1 and operation of main configuration]
Next, based on FIG. 1, the operation of the main configuration of the mobile terminal 1 which is another example of the embodiment of the present invention will be described.

  In addition, [2. Configurations other than those described in [Configuration of mobile terminal 1 and operation of main configuration] are described in [1. Outline of the configuration of the content reproduction system 30]. For convenience of explanation, [1. The members having the same functions as those shown in the drawing of “Outline of Configuration of Content Playback System 30]” are denoted by the same reference numerals, and the description thereof is omitted.

  The terminal reproduction control unit 2 reproduces content. The playback content (movie content, music content, audio content, photo content, image content, viewfinder screen content, mail content, WEB page content, etc.) is played back by the terminal speaker 3 and is displayed on the terminal display 4 as an image / video / video. Text data etc. are displayed. Next, the in-area device specifying unit 6 specifies one or more communicable small TVs 20A, stereos 20B, etc. existing in a predetermined area.

  Here, the “specific” such as the small TV 20A / stereo 20B is a device detection unit that performs detection by a physical device such as direct detection of the small TV 20A / stereo 20B by wireless communication such as Bluetooth (registered trademark) or Felica. 8 may be specified.

  Further, the position detection unit 7 detects (identifies) the absolute position of the portable terminal 1 based on information from a base station such as GPS and femto communication, PLC, and the like, and a content transition table (represents the relationship between the absolute position and a predetermined area) It may be specified by a search by information processing using information and a predetermined area and information indicating a relationship between the small TV 20A / stereo 20B).

  Next, the compatible device specifying unit 9 selects a small TV 20A that conforms to a content protocol that is a rule regarding the playback content being played back by the terminal playback control unit 2, and the small TV 20A. It is specified from the stereo 20B or the like.

  Here, the “content protocol” is a rule regarding contents such as a reproduction method, a data format, a data compression method, and a communication protocol. For example, as a rule of the reproduction method, a bit rate information standard can be exemplified.

  Examples of the content data format and data compression scheme include AAC, WAV, and MP3 related to music.

  In addition to this, Flash, MP4, MPEG2 and the like related to video can be exemplified as the content data format and data compression scheme.

  Further, examples of communication protocol (communication protocol) include Bluetooth, Felica, PLC, WirelessLAN, IrDA, IrSS, and WCDMA.

  Furthermore, the terminal transmission control unit 10 transmits data of movie content (reproduction content) to the small TV 20A specified by the compatible device specifying unit 9.

  According to the above configuration, the portable terminal 1 itself (hereinafter also referred to as “own terminal”) identifies the small TV 20A that exists in the predetermined area and conforms to the content protocol of the movie content, and identifies the identified small TV 20A. In addition, movie content data is transmitted. Therefore, it is not necessary to prepare a special content server other than the own terminal for storing and accumulating movie content.

  Therefore, it is possible to easily enjoy viewing and listening between the portable terminal 1 and the small TV 20A without requiring a large-scale device such as a content server.

  Next, another problem in the content reproduction system 30 of this example will be described. As described above, in the conventional viewing continuation method and content viewing continuation system, in addition to the content data stored in the content playback terminal, other data corresponding to the content is stored and accumulated in the content server. Need to be.

  Then, since it is necessary to store the content in at least two devices, that is, the content reproduction terminal and the content server, it is necessary to copy data of one content in order to continue viewing.

  Therefore, in the conventional viewing continuation method and content viewing continuation system, digital rights management technology (DRM: digital rights management) is applied to prevent infringement of copyright and the like, and copying is prohibited. There is a problem that viewing and listening of the same content cannot be continued unless two or more of the same content are obtained (hereinafter simply referred to as “DRM problem”). For example, data such as music / video with copyright information such as SD-Audio (satellite digital audio broadcast) is not permitted to be copied, and only data can be moved.

  In order to solve such a DRM problem, in the mobile terminal 1, the terminal transmission control unit 10 performs transmission of the data of the previous movie content in a state where the movie content cannot be recorded in the small TV 20A as the transmission destination. Is preferred.

  According to the above configuration, movie content data is transmitted while the movie content data remains (stored) in the terminal itself, and the movie content cannot be recorded on the small TV 20A. Yes. Therefore, only one device of its own terminal stores movie content. That is, the movie content is not duplicated. Therefore, even in the case of movie content that has been subjected to digital rights management technology in order to prevent infringement of copyright and the like, and for which copying is prohibited, it is possible to easily enjoy watching and watching.

  Moreover, the portable terminal 1 is provided with the movement determination part 11 which detects the movement outside the predetermined range (predetermined range) of the own terminal, and the terminal transmission control part 10 is with respect to small TV20A which exists in a predetermined area. In the case where movie content data is being transmitted, it is preferable that transmission of movie content data to the small TV 20A is stopped when the movement determination unit 11 detects that the movie content has moved out of the predetermined range.

  According to the said structure, the movement determination part 11 detects the movement outside the predetermined range of an own terminal. Here, the “predetermined range” may or may not coincide with the “predetermined area”. For example, when the identification of the small TV 20A / stereo 20B by the in-area device identification unit 6 of the own terminal is performed by detection by a physical device such as direct detection by wireless communication such as Bluetooth (registered trademark), Felica, The “predetermined area” is a range where the own terminal can wirelessly communicate with the small TV 20A, the stereo 20B, and the like. For example, when the small TV 20A / stereo 20B informs its own terminal to the own terminal by wireless communication, such a range can be determined in advance based on the radio wave intensity of the wireless communication.

  However, in this case, the range in which the own terminal can perform wireless communication is an approximately spherically symmetric range with respect to the position of the own terminal, and thus the own terminal cannot move out of the range. Therefore, in this case, the “predetermined range” is a concept that cannot coincide with the “predetermined area”.

  That is, in such a case, for example, a fixed area (coordinates having a predetermined reference position as an origin is determined in advance) is set as a “predetermined range” and stored in advance in the terminal itself. .

  Then, the “absolute position” of the own terminal is specified by information from a base station such as GPS or femto communication, and the content transition table (reference table: absolute position and “predetermined range”) stored in the own terminal in advance. When the “absolute position” is out of the “predetermined range” by information processing by a computer using information indicating the relationship between the terminal and the like, the movement determination unit 11 moves the terminal out of the predetermined range. It is sufficient to adopt a configuration such as detecting.

  On the other hand, the identification of the small TV 20A / stereo 20B by the in-area device identification unit 6 of the own terminal specifies the absolute position of the own terminal by information from the base station such as GPS and femto communication and PLC, and the content transition table ( Reference table: information indicating the relationship between absolute position and “predetermined area”), etc., the “predetermined range” may match the “predetermined area”. become.

  In the case of using the PLC, for example, the content migration table is set with a fixed “predetermined range” (or “predetermined area”) in a room where a specific outlet or a desktop holder for charging a mobile phone exists. Create it.

  Further, according to the configuration, the terminal transmission control unit 10 causes the movement determination unit 11 to move out of the predetermined range when the movie content data is transmitted to the communicable small TV 20A existing in the predetermined area. When the movement is detected, the transmission of the movie content data to the small TV 20A is stopped.

  That is, according to the above configuration, since the transmission of the movie content data from the own terminal to the small TV 20A is only stopped, the reproduction on the own terminal and the small TV 20A is performed while leaving the “movie content” in the own terminal. The DRM problem can be solved. Further, it is possible to obtain an effect that “movie content” is aggregated (returned) from “small TV 20A” to the terminal itself.

  Note that “aggregation (return)” means that the playback device of the transmission destination sends back the playback content to the mobile terminal and then erases the data of the playback content.

  In order to solve the DRM problem, the mobile terminal 1 includes a recording unit 17 in which movie content is recorded, recording of movie content in the recording unit 17 and erasing of movie content recorded in the recording unit 17. A terminal recording management unit (recording management means) 12 for managing the content of the video content, and the terminal recording management unit 12 records in the recording unit 17 when the terminal transmission control unit 10 completes the transmission of the movie content data. It is preferable to delete the movie content data.

  According to the above configuration, before the movie content is transmitted to the small TV 20A, the movie content is recorded in the recording unit 17 of the own terminal. However, when the terminal transmission control unit 10 completes the transmission of the movie content data, the terminal record management unit 12 deletes the movie content data recorded in the recording unit 17.

  In other words, when the transmission of the movie content data is completed, the movie content data of the terminal itself is deleted. Therefore, even if the movie content is subsequently recorded on the small TV 20A, the movie content is not duplicated. . Therefore, the DRM problem can be solved also by the configuration.

  In addition, the mobile terminal 1 includes a key switch (return instruction unit) 14 for instructing the return of the playback content to the playback device to which the playback content transmitted by the terminal transmission control unit 10 is transmitted. When receiving a reproduction content return instruction from the user via the key switch 14, the unit 9 preferably causes the terminal transmission control unit 10 to transmit a return instruction signal instructing the return of the reproduction content.

  According to the said structure, the key switch 14 for instruct | indicating return of the reproduction | regeneration content is provided to the reproduction | regeneration apparatus of the transmission destination of the reproduction | regeneration content transmitted by the terminal transmission control part 10. FIG.

  Therefore, the user can instruct the playback device to which the playback content is transmitted via the key switch 14 to return the playback content.

  In addition, when the compatible device specifying unit 9 receives a return instruction of the playback content from the user via the key switch 14, the compatible device specifying unit 9 transmits a return instruction signal instructing the terminal transmission control unit 10 to return the playback content. Let

  Therefore, the portable terminal 1 can receive the return of the playback content from the playback device to which the playback content is transmitted in response to the return instruction from the user.

  As described above, it is possible to exchange the playback content between the portable terminal 1 and the playback device without using a special device called a content server.

  In the portable terminal 1, the terminal playback control unit 2 determines that the playback device conforming to the content protocol does not exist among playback devices such as the small TV 20 </ b> A and the stereo 20 </ b> B specified by the in-area device specifying unit 6. It is preferable to continue playback of the playback content at the terminal itself.

  According to the above configuration, the playback content such as the movie content being viewed does not stop playback, so that the playback content can be enjoyed continuously.

  In addition, the mobile device 1 uses the content migration table including the information (compatibility relationship information) indicating the compatibility relationship between the small device 20A and the stereo 20B and the content protocol. It is preferable to specify a playback device that conforms to

  Here, as examples of the “compatibility relationship information”, the compatibility relationship between the rules regarding the playback method of the playback content and the small TV 20A / stereo 20B, the compatibility relationship with the small TV 20A / stereo 20B etc. regarding the data format of the playback content, There may be a compatibility relationship between the compact TV 20A / stereo 20B and the like regarding the content data compression method, and a compatibility relationship regarding the communication protocol between the terminal itself and the small TV 20A / stereo 20B. It should be noted that it is only necessary to appropriately determine which of these compatibility relationships is adopted as “relevance relationship information” within a range in which the playback content can be continuously viewed.

  Further, the mobile terminal 1 is small from the terminal display 4 that displays candidates such as the small TV 20A / stereo 20B specified by the compatible device specifying unit 9 and the candidates such as the small TV 20A / stereo 20B displayed on the terminal display 4. The terminal transmission control unit 10 transmits data of movie contents to the small TV 20A selected by the user via the key switch 14. The key switch (device selection means) 14 is used to select the TV 20A by the user. It is preferable.

  According to the above configuration, the terminal display 4 displays candidates for playback devices such as the small TV 20A / stereo 20B specified by the compatible device specifying unit 9, so that the user can select the playback device such as the small TV 20A / stereo 20B. Can find candidates.

  Further, the key switch 14 is for allowing the user to select the small TV 20A from the candidates for playback devices such as the small TV 20A and the stereo 20B displayed on the terminal display 4, and the terminal transmission control unit 10 Is configured to transmit movie content data to the small TV 20A selected by the user via the key switch.

  Therefore, the user can select a desired small TV 20A from the candidates for playback devices such as the small TV 20A and the stereo 20B displayed on the terminal display 4 and enjoy continuous viewing of movie content.

  In addition, when there are a plurality of playback devices such as the small TV 20A and the stereo 20B specified by the compatible device specifying unit 9, the mobile terminal 1 includes the terminal transmission control unit 10 among the plurality of playback devices. It is preferable to transmit playback content data to a playback device having the highest priority.

  According to the above configuration, since the user can set the priority order of the playback devices in advance for continuous viewing of specific playback content, continuous playback of playback content in a better environment desired by the user is possible. Can enjoy.

  In the mobile terminal 1, the terminal transmission control unit 10 has a plurality of communication methods such as WLAN (Wireless LAN), PLC, and IrSS for the small TV 20A specified by the compatible device specifying unit 9. It is preferable that the movie content data is transmitted by the communication method having the highest priority among the plurality of communication methods.

  According to the above configuration, since the user can set priorities of communication methods in advance for continuous viewing of movie content (specific playback content), playback in a better communication state desired by the user is possible. You can enjoy continuous viewing of content.

  Note that the priority order includes the size of the display screen of the playback device, the order of performance such as sound quality and image quality, the order of playback devices that are close to you, the playback device used before and the number of playback device selections, etc. The connection status with the playback device (the power source of the playback device, the remaining battery level, the communication status with the playback device), and the like are also possible.

  Also, here, the case where the playback content is transmitted to the playback device with the highest priority and the playback device with the communication system with the highest priority is illustrated, but the playback content may be transmitted in order from the highest priority. Conceivable. For example, when it is impossible to transmit the playback content to the playback device with the highest priority due to the connection status between the mobile terminal 1 and the small TV 20A / stereo 20B, etc., the playback device with the next highest priority is selected. On the other hand, the terminal transmission control unit 10 may be configured to transmit the playback content.

  The mobile terminal 1 includes movie content (playback content) including audio content (sound content) used for playback of sound (sound) and image content used for playback of images. 9, when a plurality of playback devices such as a large projector (playback device), a small TV 20A, and a stereo 20B are specified, the terminal transmission control unit 10 includes a plurality of playback devices such as a large projector, a small TV 20A, and a stereo 20B. It is preferable to transmit the audio content data to the stereo 20B capable of reproducing the audio content, and to transmit the image content data to a large projector capable of reproducing the image content.

  According to the above-described configuration, for example, in the case of movie content, the image content (image) is a high image quality / large screen projection screen (equivalent to a display) of a large projector, and the audio content (sound) is high sound quality / Since continuous viewing with a high-volume audio device is possible, it is possible to enjoy continuous viewing of movie content in a home theater facility desired by the user (in a better environment).

  In addition, when the mobile terminal 1 transmits movie content data, the terminal transmission control unit 10 preferably further transmits information indicating the playback position of the movie content (or information indicating the interruption point).

  According to the above configuration, the small TV 20A can obtain information indicating the playback position (or information indicating the interruption point) of the movie content.

[3. (Configuration of playback device and operation of main configuration)
Next, the operation of the main configuration of a small TV 20A / stereo 20B, which is still another example of the embodiment of the present invention, will be described with reference to FIG.

  In addition, [3. Configurations other than those described in [Configuration of playback apparatus and main configuration] are described in [1. Outline of configuration of content reproduction system 30] and [2. The configuration of the mobile terminal 1 and the operation of the main configuration] are the same. For convenience of explanation, [1. Outline of configuration of content reproduction system 30] and [2. Members having the same functions as those shown in the drawings of the configuration of the portable terminal 1 and the main configuration] are given the same reference numerals, and descriptions thereof are omitted. In the following items, the same description is omitted.

  As shown in FIG. 1, the small TV 20A / stereo 20B is a playback device capable of playing back content, and includes a communication control unit 21A and a communication control unit 21B that receive data of playback content transmitted from the mobile terminal 1. Is provided. Note that examples of the communication method of the communication control unit 21A / communication control unit 21B include WCDMA / femto communication, PLC, wireless LAN, Bluetooth, Felica, IrDA, and IrSS.

  Further, the small TV 20A / stereo 20B includes a playback control unit 24A and a playback control unit 24B that play back playback content in which data is received by the communication control unit 21A and the communication control unit 21B.

  Further, the reproduction control unit 24A of the small TV 20A controls the display 25A to display (or reproduce) image content or the like (reproduction content), and the reproduction control unit 24B of the stereo 20B controls the speaker 25B to control the audio content. (Sound content / playback content).

  Note that the small TV 20A / stereo 20B preferably includes a communication control unit (communication control unit) 21A and a communication control unit (communication control unit) 21B that receive data of playback content transmitted from the mobile terminal 1. Also, the playback control unit 24A / playback control unit 24B starts playback of the playback content that has been received from the communication control unit 21A / communication control unit 21B and is determined from information indicating the playback position (or interruption point). It is preferable to carry out from the position.

  According to the above configuration, the small TV 20A / stereo 20B can provide a playback device suitable for continuous viewing of playback content from the mobile terminal 1. In particular, the playback control unit 24A / playback control unit 24B starts playback of the playback content that has been received from the communication control unit 21A / communication control unit 21B based on information indicating the playback position (or interruption point). Since it is performed from the position, continuous viewing can be enjoyed without interrupting the playback content being played back.

  Note that the playback start position is determined from information indicating the playback position (or interruption point), but the playback position and the playback start position need not match. For example, the reproduction start position may be shifted from the reproduction position by a predetermined time (or distance). Thereby, it is possible to reproduce the overlap (simultaneously for each reproducing apparatus). “Overlap playback” is a function of simultaneously playing back content for a predetermined time between the mobile terminal 1 and the small TV 20A / stereo 20B. Here, the “predetermined time” is a time of about several seconds including 0 seconds that do not overlap at all.

  The overlap time can be exemplified by the overlap time between the time until the mobile terminal 1 stops playback and the time after the start of playback of the small TV 20A / stereo 20B. For example, in a general folding type (clamshell) terminal, when opened from a closed state, the main liquid crystal (display unit) is displayed and the display disappears after a certain time. Similarly to this, the predetermined time is preferably about 90 seconds at the longest.

  Further, the “predetermined time” may be determined according to the display time of the terminal display 4 of the mobile terminal 1. As described above, the overlap reproduction is performed, but the clamshell may be closed or the overlap reproduction may be terminated in conjunction with the disappearance of the display on the terminal display 4.

  In addition, the small TV 20A / stereo 20B includes a communication control unit (communication control unit) 21A, a communication control unit (communication control unit) 21B, and a communication control unit 21A that perform transmission / reception of playback content data with the portable terminal 1. When the recording unit 23A / recording unit 23B received by the communication control unit 21B records the playback content and the communication control unit 21A / communication control unit 21B completes the transmission of the playback content data, the recording unit 23A It is preferable to include a content management unit (content management unit) 22A and a content management unit (content management unit) 22B that erase data of the playback content recorded in the recording unit 23B.

  The playback control unit 24A / playback control unit 24B starts playback of playback content received from the communication control unit 21A / communication control unit 21B from the playback start position determined from information indicating the playback position (or interruption point). It is preferable to do so.

  According to the above configuration, the content management unit 22A and the content management unit 22B are recorded in the recording unit 23A and the recording unit 23B when the communication control unit 21A and the communication control unit 21B complete the transmission of the reproduction content data. The data of the playback content is erased.

  Therefore, when the terminal transmission control unit 10 completes the transmission of the reproduction content data, the terminal recording management unit 12 erases the reproduction content data recorded in the recording unit 17. By using in combination, it is possible to completely solve the DRM problem and enjoy continuous viewing of the playback content.

  In particular, the playback control unit 24A / playback control unit 24B starts playback of the playback content that has been received from the communication control unit 21A / communication control unit 21B based on information indicating the playback position (or interruption point). Since it is performed from the position, continuous viewing can be enjoyed without interrupting the playback content being played back.

  Note that the playback start position is determined from information indicating the playback position (or interruption point), but the playback position and the playback start position need not match. For example, the reproduction start position may be shifted from the reproduction position by a predetermined time (or distance). Thereby, it is possible to reproduce the overlap (simultaneously for each reproducing apparatus). “Overlap playback” is a function of simultaneously playing back content for a predetermined time between the mobile terminal 1 and the small TV 20A / stereo 20B. Here, the “predetermined time” is a time of about several seconds including 0 seconds that do not overlap at all.

  The overlap time can be exemplified by the overlap time between the time until the mobile terminal 1 stops playback and the time after the start of playback of the small TV 20A / stereo 20B. For example, in a general folding type (clamshell) terminal, when opened from a closed state, the main liquid crystal (display unit) is displayed and the display disappears after a certain time. Similarly to this, the predetermined time is preferably about 90 seconds at the longest.

  Further, the “predetermined time” may be determined according to the display time of the terminal display 4 of the mobile terminal 1. As described above, the overlap reproduction is performed, but the clamshell may be closed or the overlap reproduction may be terminated in conjunction with the disappearance of the display on the terminal display 4.

  Further, when the small TV 20A / stereo 20B receives the return instruction signal instructing the return of the playback content received from the portable terminal 1, the content management unit 22A / content control unit 22B receives the communication control unit 21A / communication control unit. It is preferable that 21B transmit the data of the reproduction content.

  According to the above configuration, it is possible to provide a small TV 20A / stereo 20B and the like suitable for the portable terminal 1 that transmits the reproduction content to the small TV 20A / stereo 20B and erases the reproduction content recorded in the terminal itself.

[4. Overview of Functions of Content Playback System 30]
Next, an overview of the functions of the content reproduction system 30 will be briefly described with reference to FIG.

  FIG. 8 shows a state when the user returns home from a place where he / she plays music content (playback content) with a mobile phone (mobile terminal).

  First, as shown in part (a) of FIG. 8, when the user enters his / her room (predetermined area) from the outside, it can be transferred to a mobile phone display (display unit) according to a content transfer table determined for each room. Device (playback device) is displayed. On the display, a stereo (playback apparatus) and a TV (playback apparatus) are displayed as devices to which music can be transferred. In addition, a high priority stereo is displayed at the top of the terminal display. Here, when content is automatically transferred, for example, music content is transferred to stereo.

  Next, as shown in part (b) of FIG. 8, when moving from his / her room to the living room (predetermined area), the music content is transferred to the device (playing apparatus) in the living room according to the content transfer table. The Here, the content is not moved from the mobile phone.

  Also, as shown in FIG. 8 (c), the device in each room is pre-registered (content migration table) as to whether femto communication, PLC, GPS, LAN group, or detection by Bluetooth is used. The information can be recorded in advance in a recording unit of a mobile phone).

  Next, as shown in part (d) of FIG. 8, when going out, reproduction / display is collected (returned) on the mobile phone. In the following description, the music content is stored in the recording unit of the mobile phone, and the music content being played back on the playback device appears to have moved to the mobile phone. The music content stored in the department may be moved to the recording part of the mobile phone and stored (moved). Therefore, as a concept that summarizes these cases, “concentration (return)” of music contents Call. Note that “aggregation (return)” means that the playback device of the transmission destination sends back the playback content to the portable terminal and then erases the data of the playback content.

[5. Details of content migration table)
Next, based on FIGS. 1 to 3, details of a content migration table (such as conformity relation information) used in the content reproduction system 30 (mobile terminal 1) will be described.

  As shown in FIG. 1, “information indicating the relationship between position information (absolute position) and area information (information indicating a predetermined area) / range information (information indicating a predetermined area)”, “area information (predetermined area)” Information indicating the relationship between the small TV 20A / stereo 20B, etc., “Information indicating the relationship between the small TV 20A / stereo 20B, etc. and the content protocol”, “Information indicating the priority order of the small TV 20A / stereo 20B, etc.”, and “ The information indicating the priority order according to the communication method of the small TV 20A / stereo 20B ”is included.

  Next, FIG. 2 is a diagram showing an example of a part of the content migration table, and FIG. 3 is a diagram showing an example of another part of the content migration table.

  In FIG. 1. In-area device identification method; 2. priority of playback devices; 3. Priorities of communication methods of contents (reproduced contents) Touch transfer setting, 5. Delivery procedure, 6. 6. whether to pause the playback device when collecting the playback content on the mobile terminal; 7. Actions when collecting playback contents on mobile terminals; Terminal movement detection settings are shown.

  Major items The in-area device specifying method is information relating to “information indicating a relationship between position information (absolute position) and area information (information indicating a predetermined area)” illustrated in FIG. Here, only “my room (predetermined area)” is illustrated as the predetermined area, but the same content migration table may be created for each of the other rooms.

  It can be seen that a stereo (playback device), a radio cassette (playback device), a PC (playback device), a small TV (playback device), and a mobile phone slave (playback device) are present in the room. Then, it can be seen that two communication formats of PLC and Bluetooth can be used as a stereo device identification method. The same applies to other reproducing apparatuses.

  In addition, although “position automatic detection: OFF” is described in the uppermost column, “position automatic detection” is a function for automatically specifying a playback device in a predetermined area by the in-area device specifying unit 6. Means. In the case of “position automatic detection: OFF”, the user manually inputs the name of the predetermined area via the key switch (device selection means) 14 so that the identification of the playback device in the predetermined area is completed. The in-area device specifying unit 6 may be configured.

  Major item 2. The priority order of the playback device is information relating to “information indicating the priority order of the small TV 20A / stereo 20B”.

  Here, although there is a column of “automatic setting for each content”, for example, in the case of music content, since automatic setting is ON, it indicates that the playback content is automatically transferred according to the priority order. ing. In the case of playback content other than music content, available playback device candidates are displayed on the terminal display 4.

  For example, if the music content is being played back on the mobile terminal 1, the music content is automatically transferred because the music content is set to “automatic setting ON”.

  Next, the priority for each playback device is “1” for stereo, “3” for radio cassette, “2” for PC, “4” for small TV, and “5” for mobile phone slave units. Therefore, the priority order is the order of stereo, PC, radio cassette, small TV, and mobile phone handset. Therefore, in the case of music content, the content is automatically transferred to the stereo with the highest priority number “1”.

  As described above, ON / OFF of automatic setting of content migration can be set in advance for each content, so that convenience for the user is improved.

  Major item 3. The priority order of the content communication system is information relating to “information indicating the priority order according to the communication system of the small TV 20A / stereo 20B”.

  Here, “automatic setting for each playback device” is described. Thus, when stereo is specified in the case of music content, it indicates that the playback content is automatically transferred according to the communication method in accordance with the priority order of the communication method. For example, in the case of moving image content, according to the rules described above, “PC / small TV / mobile phone slave” is displayed on the terminal display 4 as a candidate for a playback device. Therefore, it is assumed that the user has selected a small TV via the key switch 14. At this time, the priorities of the available communication methods are in the order of WLAN (Wireless LAN: wireless LAN), PLC, and IrSS (indicated as Ir-SS in FIG. 2).

  Therefore, the WLAN with the highest priority number “1” is automatically adopted as the communication method, and the moving image content is transferred to the small TV.

  As described above, since ON / OFF of the automatic setting of the communication method can be set in advance for each playback device, the convenience for the user is improved.

  Major item 4. The touch transfer setting is information not shown in FIG. 1, but when “YES” is set, the playback content of the mobile terminal 1 is displayed when the mobile terminal 1 is brought close to the playback device. Indicates that it will move immediately.

  For example, when PLC is selected as the communication method between the mobile terminal 1 and the playback device, when the mobile terminal 1 is mounted on the desktop holder for charging, the playback content is immediately transferred to the playback device that can be transferred by the PLC. The mobile terminal 1 can be configured to shift. As a result, the playback content can be transferred simply by taking the action of charging the mobile terminal 1, so that the convenience for the user can be improved.

  In addition, when wireless communication such as Bluetooth can be used, when the radio wave strength of wireless communication from a transferable playback device exceeds a predetermined level, a connection is established and playback content is immediately transferred to the playback device. Thus, the mobile terminal 1 can be configured. As a result, the playback content can be transferred simply by bringing the mobile terminal 1 close to the desired playback device, so that the convenience for the user can be improved. In addition, infrared terminals such as IrDA and IrSS can also be used to configure the mobile terminal 1 and improve user convenience.

  Major item 5. The delivery procedure is information that is not shown in FIG. 1, but shows an action when transferring the playback content to the playback device. For example, when music content is transferred to a stereo (such as the stereo 20B in FIG. 1), a command signal “turn on power” is transmitted to the stereo to automatically start the stereo. The mobile terminal 1 can be configured. In addition, the portable terminal 1 can be similarly configured with command signals such as “Set the volume to Vol. 6”, “Set the illumination to luminance 1”, and “Display the playlist”. As a result, it is possible to realize reproduction content migration with a desired action.

  In addition, when the playback content is transferred from the mobile terminal 1 to the mobile phone slave device (playback device), if the mobile phone slave device is set to the manner mode, the playback content is transferred so as to be silent. Thus, the mobile terminal 1 can be configured.

  Further, the portable terminal 1 is configured so that the reproduction content is transferred so that the sound is reproduced with normal sound when the headphones are not attached to the stereo (stereo 20B) and when the headphones are attached. You can also. As a result, it is possible to obtain an effect that no noise is caused to others and annoyance to others when transferring the playback content.

  In addition, when browsing the WEB page (reproduction content) on the portable terminal 1, the PC (personal computer) is turned on from the standby state, the browser of the PC is started, and the WEB address viewed on the portable terminal 1 By configuring the mobile terminal 1 to transmit the message from the mobile terminal 1, the WEB page viewed on the mobile terminal 1 can be displayed on the browser of the PC.

  Major item 6. Is information not shown in FIG. 1, but here, it is set whether or not the playback device is to be paused when the playback content is collected in the mobile terminal 1. As a result, in the case of a PC in which the saving mode is set and the apparatus is set to automatically shift to the standby state, the playback content is continuously played back on the PC, and other stereos are paused. Thus, the mobile terminal 1 can be configured. Thereby, the reproduction contents can be collected in the mobile terminal 1 without performing the troublesome task of temporarily stopping the reproduction of the reproduction contents of each reproduction apparatus.

  Major item 7. Is information not shown in FIG. 1, but here, an example of setting an action when reproducing content is aggregated in the mobile terminal 1 is shown. Subitem A. As shown in FIG. 5, if only the playback content of the playback device whose connection has been stopped is collected in the portable terminal 1, the playback content can be aggregated while the playback content is being played back on the desired playback device. In addition, as the assumed situation, a case where a person other than the user desires reproduction of desired reproduction content can be assumed.

  Sub-item B. As shown in FIG. 6, if the reproduction of all the contents is stopped, an effect that it is not necessary to perform a troublesome operation such as stopping the reproduction of the reproduction apparatus can be obtained.

  In addition, sub-item C.I. As shown in FIG. 4, if the playback content is moved to the designated playback device, the playback content can be automatically stored in the desired playback device. In order to obtain such an effect, specifically, the mobile terminal 1 moves the playback content from the playback device to the mobile terminal 1 and then moves the playback content from the mobile terminal 1 to the desired playback device. May be configured.

  Further, the sub-item D.D. As shown in FIG. 4, if the playback content being played back by the playback device is moved to the mobile terminal 1 in a lump, the user of the mobile terminal 1 can go all the playback content to the mobile terminal 1 and go out. Can do.

  With the above configuration, the reproduction content aggregation procedure can be set in the content migration table in advance, so that convenience for the user is improved.

  Next, in the example of the content migration table shown in FIG. 3, an example of content protocol pre-registration is shown. In this example of the content migration table, file formats (or data compression methods) that are standards for each reproduction content such as video content (in FIG. 3, only “video” is described. The same applies hereinafter), music content, and the like. An example of registering the bit rate for each) is shown. That is, FIG. 3 is an example of “information indicating the relationship between the small TV 20A / stereo 20B and the content protocol and the content protocol” illustrated in FIG.

[6. Details of Operation of Content Playback System 30]
Next, the operation of the content reproduction system 30 will be described in detail based on the flowcharts of FIGS. 1 to 3 and FIGS. 4 to 7.

(Rough flow)
First, the general flow of the operation of the content reproduction system 30 shown in FIG. 1 will be described based on the flowchart of FIG. As shown in FIG. 4, while playing back specific playback content on the mobile terminal 1, the user returns home, enters a specific room, and describes step S <b> 1 (hereinafter simply referred to as “S <b> 1”). "Is omitted)" is the start.

  Next, it progresses to S2A and the portable terminal 1 shown in FIG. 1 starts operation | movement. Although details will be described below, in S2A, the mobile terminal 1 executes “the first half of the migration flow for the content being played back”, and subsequently the mobile terminal 1 executes “the second half of the migration flow for the content being played back”. Thereby, a part or all of the reproduction content being reproduced on the portable terminal 1 is transferred to the small TV 20A, the stereo 20B, or the like.

  Next, when the user takes an action of moving from a specific room to another room, the process proceeds to S3A. In S <b> 3 </ b> A, the mobile terminal 1 executes “a flow that moves together in a terminal”. As a result, part or all of the playback content transferred to the small TV 20A, stereo 20B, etc. is collected again in the portable terminal 1.

  Next, when the user enters another room, the process proceeds to S2B. Thereafter, each time the room is moved, the above-described flow is repeatedly executed, and when the user finally goes out with the portable terminal 1, the process proceeds to S4. It is advancing and ending.

(First half of the migration flow for the content being played)
Next, the “first half of the migration flow of the content being reproduced” shown in FIG. 5 will be described.

  In the following, the user goes home while watching (playing back) the movie content, enters a specific room, and “starts content transfer” to the mobile terminal 1 via the key switch 14 / input control unit 13 shown in FIG. Is given, the process proceeds to S11.

  The movie content is played back by the terminal playback control unit 2 reading the movie content data recorded in the recording unit 17 and controlling the terminal speaker 3 and the terminal display 4 to play the movie content. To do.

  Here, for the sake of simplicity, the case where the user gives an instruction to start “content migration” to the mobile terminal 1 is shown. However, the absolute position of the mobile terminal 1 is obtained by GPS or the like, and the absolute position is specified. The portable terminal 1 may be configured to automatically execute “the first half of the migration flow of the content being reproduced” when it reaches the room (predetermined area).

  Next, in S11, a CPU (central processing unit) (not shown) of the portable terminal 1 refers to the content migration table (FIG. 2), confirms “automatic location search function ONOFF”, and reads “automatic location search function OFF”. Therefore, the process proceeds to S18, where the user manually inputs a place (predetermined area: for example, own room is registered in advance) via the key switch 14, and proceeds to S14.

  On the other hand, if the “automatic position search function is ON”, the CPU drives the content protocol specifying unit 5 and proceeds to S12.

  In S12, the content protocol specifying unit 5 driven by the CPU performs the file format (or compression method) of the movie content being reproduced by the terminal reproduction control unit 2, for example, “compression method Mpeg2” (MPEG2: content protocol). And the reproduction position information (information indicating the reproduction position) of the movie content is acquired from the terminal reproduction control unit 2.

  Next, the content protocol specifying unit 5 drives the in-area device specifying unit 6 and transfers the “compression method Mpeg2” and the reproduction position information of the movie content to the compatible device specifying unit 9, and proceeds to S13.

  In S <b> 13, the in-area device specifying unit 6 driven by the content protocol specifying unit 5 drives the device detecting unit 8. The device detection unit 8 causes the terminal transmission control unit 10 to transmit a “playback device search signal”. Next, when the communication control unit 21A / communication control unit 21B of the small TV 20A / stereo 20B receives the “playback device search signal”, it transfers it to the content management unit 22A / content management unit 22B. Next, the content management unit 22A / content management unit 22B that has received the “playback device search signal” causes the communication control unit 21A / communication control unit 21B to transmit the device ID (device identification information) of the small TV 20A / stereo 20B. .

  When receiving the device ID, the terminal reception control unit 18 transfers the device ID to the compatible device specifying unit 9 via the device detection unit 8. Thereby, the device detection unit 8 or the in-area device specifying unit 6 can detect (specify) the presence of the small TV 20A / stereo 20B. Therefore, “YES” is set, and the in-area device specifying unit 6 driven by the content protocol specifying unit 5 and having the device ID transferred via the device detecting unit 8 further drives the compatible device specifying unit 9 to S14. move on.

  On the other hand, if the current location (predetermined area) cannot be detected by Bluetooth, GPS, PLC, or the like, “NO” is determined, and the process proceeds to S19. In S19, the compatible device specifying unit 9 drives the terminal reproduction control unit 2, and the terminal reproduction control unit 2 displays “not able to detect the location” on the terminal display 4 and proceeds to S18.

  Since S18 is the same as described above, description thereof is omitted. Here, the fact that the location could not be detected is displayed on the terminal display 4, but as shown in FIG. 5, the compatible device specifying unit 9 drives the terminal reproduction control unit 2 to control the terminal reproduction control. If the unit 2 generates a warning sound to the speaker 25B or the mobile terminal 1 has a vibrator function, the user may be notified by vibrating the vibrator.

  In S14, the compatible device specifying unit 9 driven by the in-area device specifying unit 6 receives the “compression method Mpeg2” and playback position information of the movie content received from the content protocol specifying unit 5, and the in-area device specifying unit 6 Referring to the content migration table based on the device ID transferred from, the process proceeds to S14.

  In S15, the compatible device specifying unit 9 refers to the content migration table (FIG. 3) and “PC”, “small TV 20A (small TV)”, “mobile phone slave” as a playback device compatible with “compression method Mpeg2”. Is identified. At this time, since there is a device (playback device) that can transfer the playback content to “my room”, the process proceeds to S16.

  On the other hand, if there is no device (playback device) that can transfer the playback content in “your room”, the process proceeds to S20. If the “automatic position search function is ON”, the process proceeds to “YES” and starts. Return to position. On the other hand, if the “automatic position search function is OFF”, the determination is “NO” and the process proceeds to S21. In S21, the compatible device specifying unit 9 drives the terminal reproduction control unit 2, and returns to the start position by “displaying that there is no device that can be transferred” on the terminal display 4.

  In S16, the compatible device specifying unit 9 refers to the moving image content (movie content) row in the content migration table of FIG. 2 and “automatic setting of video (movie content) is OFF”. The unit 2 is driven to display “Small TV 20A (Small TV) / PC / Mobile Phone Slave” (S16) on the terminal display 4 according to the priority order of each playback device (S16), and the process proceeds to S17.

  In S17, since “automatic setting of video (movie content) is OFF”, “NO” is determined, and the process proceeds to S22. On the other hand, if “automatic video setting is ON”, “YES” is entered and “connector B” is reached.

  In S22, the compatible device specifying unit 9 drives the terminal reproduction control unit 2, causes the terminal display 4 to “display a message for prompting connection start”, and proceeds to S23.

  When the user operates the key switch 14 to display an intention of “connecting”, “YES” is displayed and the process proceeds to “connector B”.

  On the other hand, when the user operates the key switch 14 to display an intention of “do not connect”, it becomes “NO” and proceeds to “connector A” and returns to the start position.

(The second half of the migration flow for the content being played)
Next, the “second half of the migration flow of the content being reproduced” shown in FIG. 6 will be described.

  “Connector B” illustrated in FIG. 6 indicates that “Connector B” illustrated in FIG. 5 continues from “Connector B”. Further, “connector A” illustrated in FIG. 6 indicates that “connector A” illustrated in FIG. 5 is reached.

  First, in S31, since it is assumed that there are a plurality of playback contents, in addition to the movie contents described above, the user is simultaneously viewing a WEB page (WEB contents: playback contents) by a connector task processing (playback). Middle).

  In S31, the compatible device specifying unit 9 refers to the content migration table and finds (specifies) at least one playback device (device) that matches each content protocol of movie content and WEB content. If it is, all movie contents and WEB contents can be transferred, so “YES”, and the process proceeds to S32.

  On the other hand, if a small TV 20A (device) that conforms to the content protocol of the movie content can be found, but no playback device (device) that conforms to the content protocol of the WEB content can be found, "NO" is determined, and the process goes to S35 move on.

  In S 32, the compatible device specifying unit 9 transfers the device ID of the specified playback device and the “playback position information” received from the content protocol specifying unit 5 to the terminal transmission control unit 10 and drives the terminal transmission control unit 10. Then, in accordance with each device ID, a connection with the corresponding playback device is established, and the process proceeds to S33 in order to transfer all the playback content. As a method for establishing a connection, the terminal transmission control unit 10 issues a “communication permission request signal (including device ID)” for requesting communication permission to a playback device corresponding to a specific device ID.

  Further, when receiving the “communication permission request signal”, the communication control unit 21A and the communication control unit 21B of the small TV 20A and the stereo 20B respectively notify the content management unit 22A and the content management unit 22B. The content management unit 22A / content management unit 22B that has received the notification sends a “communication permission signal” to the communication control unit 21A / communication control unit 21B when it matches the device ID of its own device. To send to. This establishes a communication connection between the portable terminal 1 and a playback device such as the small TV 20A / stereo 20B.

  Note that, for example, the content management unit 22A / content management unit 22B of the small TV 20A / stereo 20B has issued a “communication permission signal” as a method of transferring the playback content from the portable terminal 1 to the small TV 20A / stereo 20B. The communication control unit 21A / communication control unit 21B may be allowed to receive the playback content on the condition that the playback content transmitted includes the device ID of the own device.

  In S33, when the terminal reception control unit 18 receives the “communication permission signal (including device ID)” from the playback device corresponding to each device ID, the compatible device specifying unit 9 “established connection”. May be configured to be determined. Here, if the terminal reception control unit 18 cannot receive the above “communication permission signal” at all, it means “NO” because it cannot be correctly connected to the playback device, and the process proceeds to S38. Then, the matching device specifying unit 9 drives the terminal reproduction control unit 2 to display “not able to shift” on the terminal display 4 to reach “connector A”.

  On the other hand, if the mobile terminal 1 has established connection with the playback device corresponding to all the playback content, “YES” is determined, and the process proceeds to S34. In S34, the compatible device specifying unit 9 instructs the terminal transmission control unit 10 to transfer all the reproduction contents and drives the terminal reproduction control unit 2 to display “the content transfer has been completed successfully” on the terminal display 4. ”Is displayed, and the process proceeds to S39 to“ Complete ”.

  Step S35 is a step when the small TV 20A (device) conforming to the content protocol of the movie content can be found in S31 as described above, but the playback device (device) conforming to the content protocol of the WEB content cannot be found. It is.

  In S35, only the “movie content” that can be transferred starts to be transferred to the small TV 20A. Further, in the case where browsing (playback) on the mobile terminal 1 is continued for the WEB content, “YES” is determined, and the process proceeds to S36. On the other hand, when browsing the web content on the portable terminal 1 is not continued, “NO” is determined and the process proceeds to “connector A”.

  In S36, when the terminal reception control unit 18 receives the “communication permission signal (including device ID)” from the small TV 20A, the compatible device specifying unit 9 determines that “connection has been established”, and S37. Proceed to In S37, the compatible device specifying unit 9 instructs the terminal transmission control unit 10 to transfer the movie content to the small TV 20A, and confirms that the terminal transmission control unit 10 has transmitted the movie content to the small TV 20A. The playback control unit 2 is driven to display “partial content has been transferred” on the terminal display 4, and the process proceeds to S 39 to “end”.

  On the other hand, if the terminal reception control unit 18 is unable to receive the “communication permission signal”, it is determined that the connection with the small TV 20A has not been made correctly, and thus “NO” is selected. The device specifying unit 9 drives the terminal reproduction control unit 2 to display “not able to shift” on the terminal display 4 to reach “connector A”.

(Flow that moves to a terminal)
Next, the “flow that moves to the terminal in a collective manner” shown in FIG. 7 will be described.

  In S32 to S34 in FIG. 6, the compatible device specifying unit 9 transfers the device ID of the specified playback device and the “playback position information” received from the content protocol specifying unit 5 to the terminal transmission control unit 10 and also transmits to the terminal. The controller 10 was driven to establish a connection with the corresponding playback device according to each device ID, and all playback content was transferred.

  Below, first, each flow from S41 to S43 will be described on the premise that data of reproduction content is transmitted from the portable terminal 1 to the reproduction device. After that, the playback device holds the data (the data itself is assumed to be stored in, for example, the recording unit 23A / recording unit 23B of the small TV 20A / stereo 20B) (hereinafter, referred to as any content) S41 to S43 on the assumption that data of reproduction content is transmitted from the portable terminal 1 to the reproduction device on the assumption that the reproduction content is referred to as “reproduction content” for convenience. Each flow will be described.

  In the above description, the data of the playback content to be aggregated can be read only in the case of the portable terminal 1 or the small TV 20A / stereo 20B.

  However, the sound content is held by the mobile terminal 1 and is played back by the terminal speaker 3, for example, when the user goes home by playing the video content on the mobile terminal 1 when going out, and the image content is small. As in the case where the TV 20A holds and playback is performed on the display 25A, sound content and image content derived from one playback content are held in separate devices of the mobile terminal 1 and the small TV 20A, respectively. Cases are also possible.

  First, a case where it is assumed that transmission of playback content data from the portable terminal 1 to the playback device is assumed. In S41, the compatible device specifying unit 9 determines that the terminal reception control unit 18 has received each device ID. When a “communication permission signal (including device ID)” is received from a playback device corresponding to the above, it is determined that “a connection has been established”, and when a “communication permission signal” cannot be received, It was determined that it could not be established. Thus, when the “status with the connected device” is confirmed, the process proceeds to S42.

  In S42, the compatible device specifying unit 9 instructs the terminal transmission control unit 10 to transmit playback content, and the process proceeds to S43. In S43, the device ID (transmission destination information) of the playback device that is the transmission destination for which the compatible device specifying unit 9 instructs the terminal transmission control unit 10 to transmit the playback content is recorded in the recording unit 17, and the process proceeds to S44.

  Next, with respect to a case where any content that is being played back after the playback device holds the data is collected in the mobile terminal 1, in S41, the compatible device specifying unit 9 determines that the terminal reception control unit 18 When the “communication permission signal (including the device ID)” from the playback device corresponding to each device ID is received, it is determined that “connection has been established” and the “communication permission signal” cannot be received. It is determined that “connection could not be established”. Thus, when the “status with the connected device” is confirmed, the process proceeds to S42.

  In S42, the compatible device specifying unit 9 drives the terminal transmission control unit 10, and the "content protocol notification request" is determined to be a small TV 20A (hereinafter referred to as a specific image content by the small TV 20A). To be played).

  When the content management unit 22A of the small TV 20A receives the “content protocol notification request” transmitted from the mobile terminal 1 via the communication control unit 21A, the content control unit 22A confirms that the image content is being reproduced by the reproduction control unit 24A. , Driving the communication control unit 21A, the “content protocol” of the image content being reproduced, the device ID of the device itself, and information relating to the image content being reproduced on the small TV 20A (not shown: total capacity of the image content and Including the rights management information of the image content, etc. (the same applies hereinafter) to the portable terminal 1.

  The compatible device specifying unit 9 receives the “content protocol”, the device ID, and information (not shown) regarding the image content being played back on the small TV 20A via the terminal reception control unit 18, and thereby the image is displayed on the small TV 20A. Confirm that the content is being played back. Then, the compatible device specifying unit 9 refers to the “content migration table” stored in the recording unit 17 and can transfer the image content to the mobile terminal 1 based on the “content protocol”. And proceed to S43.

  In S43, when the compatible device specifying unit 9 determines that the image content can be transferred to the portable terminal 1, the compatible device specifying unit 9 reproduces the device ID (transmission destination information) of the small TV 20A and the small TV 20A. Information regarding the image content is recorded in the recording unit 17, and the process proceeds to S44.

  In S44, it is confirmed whether there is any change in the connection state between the portable terminal 1 and a playback device such as the small TV 20A / stereo 20B. Here, “change in connection state” means a state in which communication between the mobile terminal 1 and another playback apparatus that is playing back content is disconnected.

  Specifically, the first state may be a case where the battery of the mobile terminal 1 is about to run out. In this case, the configuration is such that the reproduction content is transferred (transferred) to another reproduction apparatus before the battery of the mobile terminal 1 is exhausted.

  In the second state, when enjoying continuous viewing in a specific room, if the battery of the playback device is about to run out or does not move due to a power failure (however, if the power failure causes the recording of the portable terminal 1) It is conceivable that the reproduction content data needs to be recorded in the unit 17). Also in this case, the data of the reproduction content is collected in the portable terminal 1.

  The third state may be a case where connection between the portable terminal 1 and the playback device becomes difficult due to radio wave interference. For example, a case where reproduction on the stereo 20B becomes difficult when the microwave oven is used while the music of the mobile terminal 1 is reproduced on the stereo 20B with Bluetooth may be considered. Also in this case, the data of the reproduction content is collected in the portable terminal 1. In this case, as will be described below, when moving the playback content data on the playback device side to the mobile terminal 1, it is necessary to restore the connection between the mobile terminal 1 and the playback device. This connection recovery method includes a case where the user recovers the connection by bringing the mobile terminal 1 and the playback device close to a distance where radio interference can be avoided, and another communication that can connect the communication means between the mobile terminal 1 and the playback device. It is also possible to change to means.

  The fourth state may be a case where processing of the mobile terminal 1 becomes heavy and transmission to the playback device becomes difficult. For example, in a situation where music content is played on the mobile terminal 1 and played from the terminal speaker 3 using WiFi (a nickname for IEEE802.11a and IEEE802.11b which are wireless LAN standards), the mobile terminal 1 A case where WEB browsing is started on two screens while terrestrial digital (12 segments) is activated (a case where the number of tasks of multitask processing is too large) can be considered. In this case, it is configured such that the music content being played is transferred to the playback device when it becomes difficult to play the music content on the mobile terminal 1. In addition, the case where the room is moved may be considered.

  In the following, a case where the room is moved among the “changes in the connection state” will be described. For example, when the position detection unit 7 of FIG. 1 is configured by GPS, the position detection unit 7 periodically obtains the absolute position of the portable terminal 1 by sanitary communication from the terminal reception control unit 18, and the movement determination unit 11, when the absolute position moves out of a predetermined range (for example, a specific area based on the center of the room in which the reproduction content is transferred), “mobile terminal 1 and small TV 20A / stereo 20B, etc. It is determined that there has been a change in the connection state with the playback device, and the compatible device specifying unit 9 is notified of this and the process proceeds to S45.

  In S45, the compatible device specifying unit 9 that has received a notification from the movement determining unit 11 that "the connection state between the portable terminal 1 and the playback device such as the small TV 20A / stereo 20B has changed" is the terminal playback control unit 2 To display on the terminal display 4 that “contents played back / displayed on another device (playback device) should be played back on the mobile terminal (mobile terminal 1)?”, And the process proceeds to S46.

  In S46, the flow branches depending on whether or not all the playback content to be transferred is held in the portable terminal 1 (recorded in the recording unit 17). If all the playback contents to be transferred are held in the mobile terminal 1, the process proceeds to S47.

  In S47, when the terminal transmission control unit 10 is transmitting reproduction content data to one or more communicable reproduction devices existing in the predetermined area, the movement determination unit 11 moves outside the predetermined range. When it is detected that the playback content has been transmitted, the transmission of the playback content data to the playback device is stopped. Thereafter, the terminal transmission control unit 10 notifies the compatible device specifying unit 9 that the transmission of the reproduction content data to the specific playback device has been stopped, and the compatible device specifying unit 9 that has received the notification transmits the terminal reproduction control unit. 2 is driven to reproduce the reproduction content, and the process proceeds to S48.

  That is, since the reproduction content data originally held on the portable terminal 1 side is only transmitted to the reproduction device, the reproduction content whose transmission is stopped is reproduced on the terminal speaker 3 or the terminal display 4 of the portable terminal 1. By doing so, it is possible to achieve the aggregation of the playback content that has been played back by the playback device to the mobile terminal 1.

  In S48, if all of the playback contents are successfully aggregated (transferred), the determination becomes “YES” and the process proceeds to “END”. In addition, when the aggregation (migration) of specific reproduction contents cannot be performed normally, the compatible device identification unit 9 drives the terminal reproduction control unit 2 and displays “specific reproduction content is migrated to the terminal display 4. “Not done” is displayed and the process proceeds to “End”.

  On the other hand, when all the playback contents to be aggregated (transferred) are not held in the mobile terminal 1 in S46 (when all the playback contents are held on the playback device side, some of the playback contents are mobile terminals) (Including the case where the remaining playback content is held on the playback device side), the process proceeds to S50.

  In S50, the flow branches depending on whether or not the playback content that cannot be connected is moved to the mobile terminal. First, if the user has set in advance such as “Do not move playback content that can no longer be connected to the mobile terminal” or the like, the determination is “NO” and the process proceeds to S51. Note that the user directly instructs the mobile terminal 1 (via the input control unit 13 to the compatible device specifying unit 9) that the user does not move the playback content that cannot be connected to the mobile terminal via the key switch 14. The same shall apply hereinafter).

  In S51, the compatible device specifying unit 9 drives the terminal reproduction control unit 2 to display “stopping the specific reproduction content” on the terminal display 4, and proceeds to “END”.

  On the other hand, in S50, when the user has set in advance such as “move the playback content that can no longer be connected to the mobile terminal” or the like, If the mobile terminal 1 receives the intention indication “move to terminal”, the determination becomes “YES” and the process proceeds to S52.

  In S52, for example, when the mobile device 1 plays the moving image content while the mobile device 1 is out, the device ID (transmission destination) of the small TV 20A recorded in the recording unit 17 is displayed. Information) and information relating to the image content being played back on the small TV 20A, whether or not the image content is recorded in the recording unit 17 is checked, and the process proceeds to S53.

  The confirmation of the recording of the image content can be realized if the compatible device specifying unit 9 is configured to directly check (not shown) the recording unit 17. It is preferable that the confirmation be performed regardless of whether or not the image content is being reproduced on the mobile terminal 1 side.

  In S53, the user selects reproduction contents to be aggregated (moved / shifted) to the mobile terminal 1 via the key switch 14, and the process proceeds to S54. For example, in the above flow, the aggregation of the image content being reproduced on the small TV 20A is selected.

  In S54, the information relating to the image content being played back on the small TV 20A recorded in the recording unit 17 by the compatible device specifying unit 9 (including the total capacity of the image content and the right management information as described above). By referring to the total capacity of the image content and the right management information, the process proceeds to S55.

  In S55, the matching apparatus specifying unit 9 compares the total capacity of the acquired image content with the total capacity of the data area of the recording unit 17, and the process proceeds to S56.

  In S56, the image content is stored in the mobile terminal 1 based on whether or not a memory area (data area) for the compatible device specifying unit 9 to record the image content in the recording unit 17 is secured and the right management information of the image content. Judge whether or not aggregation is possible. This determination branches the flow.

  According to the above example, since the image content is content derived from one moving image content, the image content is separated and moved from the portable terminal 1 to the small TV 20A (stored in the recording unit 23A of the small TV 20A). In such cases, there is a high possibility that it cannot be aggregated due to copyright management.

  If the compatible device specifying unit 9 determines in S56 that specific reproduction contents can be aggregated, “YES” is determined, and the process proceeds to S59.

  In S59, the compatible device specifying unit 9 confirms whether or not the specific reproduction content has been correctly aggregated (transferred). If the transfer of all the reproduction content has been correctly executed, the process proceeds to “YES” and “End "

  On the other hand, in S59, when the compatible device specifying unit 9 determines that the aggregation of the specific reproduction content is not correctly executed, the process proceeds to S60.

  In S60, referring to the “content migration table” recorded in the recording unit 17 by the compatible device specifying unit 9, is there another communication means for aggregating the playback content that could not be correctly aggregated? Confirm whether or not. If the compatible device specifying unit 9 determines that there is another connectable communication means, “YES” is determined, and the process proceeds to S61.

  In S61, the user selects to aggregate (send) using, for example, a mobile network (another communication means) such as CDMA via the key switch 14, and the compatible device specifying unit 9 selects the playback content according to the user's selection. Aggregation is executed, and the process returns to S59.

  On the other hand, if it is determined in S60 that the compatible device specifying unit 9 does not have another communication means, “NO” is determined, and the process proceeds to S49, where “END”.

  If the compatible device specifying unit 9 determines in S56 that the specific reproduction content cannot be aggregated, “NO” is determined, and the process proceeds to S57.

  In S57, the compatible device specifying unit 9 drives the terminal playback control unit 2 to display on the terminal display 4 that “the specific playback content cannot be aggregated (transferred) due to insufficient memory or copyright management such as copyright”. And proceed to S58.

  In S <b> 58, the user instructs whether to move (move / consolidate) only the playback contents that can be moved to the mobile terminal 1 (compatible device specifying unit 9 via the input control unit 13) via the key switch 14. If the user has selected to move (migrate / consolidate) only playable content that can be moved, the determination is “YES” and the process proceeds to S61. In S61 according to this flow, the user selects whether to move to a place where communication is possible with the currently connected communication means or to collect (send) using a mobile network (another communication means). It will be.

  On the other hand, when the user selects not to move the playback content that can be moved to the mobile terminal 1 (the compatible device specifying unit 9 via the input control unit 13) via the key switch 14 in S58, the process proceeds to S49. “End”.

  Next, an outline of four patterns will be described as an example of an assumed “flow to be aggregated to terminals”.

  The first pattern is “when all the content being reproduced is in the mobile terminal 1”. For example, the content (reproduced content) recorded in the recording unit 17 of the mobile terminal 1 is displayed on the small TV 20 </ b> A or the stereo 20 </ b> B. The case of playing is considered. In this case, the content playback exit (speaker or display) is simply changed from the portable terminal 1 to the small TV 20A / stereo 20B, and therefore the following flow is shown in FIG.

“S41 → S42 → S43 → S44 → S45 → S46 → S47 → S48”
The second pattern is a case where the content recorded in the recording unit 23A / recording unit 23B of the small TV 20A / stereo 20B is reproduced (the same content is not recorded in the recording unit 17 of the portable terminal 1). Can be considered. In this case, since the content of each playback device is moved to the mobile terminal 1, the following flow is shown in FIG.

“S41 → S42 → S43 → S44 → S45 → S46 → S50 → S52 → S53 → S54 → S55 → S56 → S57 → S58 → S61 → S59”
In the above flow, if there is a shortage of memory in the portable terminal 1 or content that is not allowed to be copied or moved, the process is performed in the flow of S56 → S57.

  The third pattern is when the content recorded in the recording unit 23A / recording unit 23B of the small TV 20A / stereo 20B is reproduced (the same content is partially recorded in the recording unit 17 of the portable terminal 1). Case). In this case, by confirming whether or not the content being played back by each playback device is in the portable terminal 1 (S52), it is apparent that the content is not moved but switched from the playback device to the mobile terminal 1 by switching. Since switching is performed, the following flow is shown in FIG.

“S41 → S42 → S43 → S44 → S45 → S46 → S50 → S52 → S53 → S54 → S55 → S56 → S57 → S58 → S61 → S59”
The fourth pattern is “when all the content being played is being played back simultaneously on the mobile terminal 1 and the playback device”. For example, when going out, video content is played back on the mobile terminal 1, FIG. 7 shows a case where sound content is reproduced by the terminal speaker 3 of the portable terminal 1 in a specific room and image content is reproduced by the small TV 20A, and is included in the first pattern. The flow is as follows.

“S41 → S42 → S43 → S44 → S45 → S46 → S47 → S48”
As described above, it is possible to easily enjoy watching and viewing between the mobile terminal 1 and the small TV 20A / stereo 20B without requiring a large-scale device such as a content server.

  The present invention is not limited to each example of the above-described embodiment, and various modifications can be made within the scope of the claims, and technical means disclosed in different examples are appropriately combined. Embodiments obtained in this manner are also included in the technical scope of the present invention.

  Finally, each block of the content reproduction system 30, particularly the terminal reproduction control unit 2 of the portable terminal 1, the content protocol identification unit 5, the in-area device identification unit 6, the compatible device identification unit 9, the terminal transmission control unit 10, the movement determination unit 11, the terminal record management unit 12, the terminal reception control unit 18 and the like, and the communication control unit 21A / communication control unit 21B of the small TV 20A / stereo 20B, the content management unit 22A / content management unit 22B, etc. You may comprise, and may implement | achieve by software using CPU as follows.

  That is, the content reproduction system 30 includes a central processing unit (CPU) that executes instructions of a control program that implements each function, a read only memory (ROM) that stores the program, and a random access memory (RAM) that expands the program. And a storage device (recording medium) such as a memory for storing the program and various data. An object of the present invention is a recording medium on which a program code (execution format program, intermediate code program, source program) of a control program of the content reproduction system 30 which is software for realizing the functions described above is recorded so as to be readable by a computer. This can also be achieved by supplying the content reproduction system 30 and reading and executing the program code recorded on the recording medium by the computer (or CPU or MPU).

  Examples of the recording medium include a tape system such as a magnetic tape and a cassette tape, a magnetic disk such as a floppy (registered trademark) disk / hard disk, and a compact disk-ROM / MO / MD / digital video disk / compact disk-R. A disk system including an optical disk, a card system such as an IC card (including a memory card) / optical card, or a semiconductor memory system such as a mask ROM / EPROM / EEPROM / flash ROM can be used.

  Further, the content reproduction system 30 may be configured to be connectable to a communication network, and the program code may be supplied via the communication network. The communication network is not particularly limited. For example, the Internet, intranet, extranet, LAN, ISDN, VAN, CATV communication network, virtual private network, telephone line network, mobile communication network, satellite communication. A net or the like is available. Also, the transmission medium constituting the communication network is not particularly limited. For example, even in the case of wired such as IEEE 1394, USB, power line carrier, cable TV line, telephone line, ADSL line, etc., infrared rays such as IrDA and remote control, Bluetooth ( (Registered trademark), 802.11 wireless, HDR, mobile phone network, satellite line, terrestrial digital network, and the like can also be used. The present invention can also be realized in the form of a computer data signal embedded in a carrier wave in which the program code is embodied by electronic transmission.

  The mobile terminal of the present invention is a mobile terminal provided with a terminal playback control means for playing back content, and an in-area device specifying means for specifying one or more communicable playback devices existing in a predetermined area; A terminal reception control means for receiving, from the playback apparatus, information indicating a content protocol that is a rule relating to playback content being played back by the playback apparatus specified by the in-region apparatus specifying means; and the terminal reception control means The reproduction permission / inhibition determining means for determining whether or not the reproduction content can be reproduced in the own terminal from the information indicating the content protocol received by the terminal, and the reproduction permission / inhibition determining means include the reproduction content in the own terminal. When it is determined that reproduction is possible, a transmission instruction signal is transmitted to instruct transmission of the reproduction content to the own terminal. It may be provided with a terminal transmission control means.

  According to the above configuration, the in-area device specifying means specifies one or more communicable playback devices existing in the predetermined area, and the terminal reception control means is played back by the specified playback device. Information indicating a content protocol, which is a rule relating to playback content, is received from the playback device.

  Thereby, the mobile terminal can recognize the communication device that can communicate with each other in the predetermined area and the content protocol of the reproduction content that the reproduction device is reproducing.

  Further, the reproduction permission / inhibition determining means determines whether or not the reproduction content can be reproduced by the own terminal from the received information indicating the content protocol.

  As a result, it is possible to prevent the reception of playback content data that cannot be played back on the mobile terminal.

  Further, the terminal transmission control means is a transmission instruction signal for instructing transmission of the reproduction content to the own terminal when the reproduction availability judging means determines that the reproduction content can be reproduced by the own terminal. Send.

  Note that the role of the reproduction permission / inhibition determining unit may be configured as a role played by the above-described matching device specifying unit.

  Accordingly, the mobile terminal can transmit data of one or more arbitrary playback contents being played back by the playback device to the mobile terminal, so that the playback content can be transmitted to the mobile terminal even when going out. Can be watched continuously.

  The playback device of the present invention is a playback device including device playback control means for playing back content, and transmits data of playback content being played back by the device playback control means from the portable terminal. Communication control means for transmitting the reproduction content when a transmission instruction signal for instructing is received may be provided.

  Further, in the playback device of the present invention, when the communication control unit receives a transmission instruction from the mobile terminal, information indicating a content protocol that is a rule relating to playback content being played back by the own device, You may transmit to the said portable terminal.

  According to the configuration, when the communication control unit receives a transmission instruction signal for instructing transmission of data of reproduction content being reproduced by the device reproduction control unit from the portable terminal, the communication control unit Send.

  In addition, when receiving a transmission instruction from the mobile terminal, the communication control unit transmits information indicating a content protocol, which is a rule relating to playback content being played back by the own device, to the mobile terminal.

  Thereby, the playback device can transmit the data of the playback content being played back by the playback device to the mobile terminal in accordance with an instruction from the mobile terminal.

  According to the above, among the arbitrary playback contents that were played back by the indoor playback device when going out with the mobile terminal, it is possible to continuously view the playback content that conforms to the content protocol that can be used by the mobile terminal. It becomes possible.

  The present invention can be applied to a mobile terminal, a playback device, and a content playback system including the mobile terminal and the playback device. For example, the present invention can be applied to a mobile phone, a PDA, a digital camera, a portable player, and the like that can perform music, movies, TV broadcasting, Web browsing, camera photography, and the like. In addition to music, video, etc., you can use various contents such as e-mail, WEB (World Wide Web), photo and finder screen when starting up the camera, broadcast contents such as 1Seg, 3Seg, and terrestrial digital broadcasting. The present invention can also be applied to terminals, digital cameras, AV (audio and visual) devices, and the like. The present invention can also be applied to a system in which these terminals, devices, devices, and the like are appropriately combined.

It is a block diagram which shows one Embodiment of the content reproduction system in this invention. It is a figure which shows the example of a part of content migration table used in the said content reproduction system. It is a figure which shows the example of the other part of the content transfer table used in the said content reproduction system. It is a flowchart which shows the outline | summary of operation | movement of the said content reproduction system. It is a flowchart which shows operation | movement (the first half of the flow which transfers the content in reproduction | regeneration) of the said content reproduction system. It is a flowchart which shows the operation | movement (the latter half of the flow which transfers the content in reproduction | regeneration) of the said content reproduction system. It is a flowchart which shows operation | movement (The flow which moves collectively to a terminal) of the said content reproduction system. It is a schematic diagram which shows the outline | summary of the function of the said content reproduction system.

Explanation of symbols

1 mobile terminal 2 terminal playback control unit (terminal playback control means)
3 Terminal speaker 4 Terminal display (display unit)
5 Content protocol identification unit (Applicable device identification means)
6 In-area device identification unit (in-region device identification means)
7 Position detector (in-area device identification means)
8 Device detector (in-region device identification means)
9. Applicable device specifying part (Applicable device specifying means)
10 Terminal transmission control unit (data transmission control means)
11 Movement determination unit (terminal movement detection means)
12 Terminal record management unit (record management means)
13 Input control unit 14 Key switch (device selection means, return instruction means)
15 Microphone 16 Camera 17 Recording unit 18 Terminal reception control unit 20A Small TV (playback device)
20B stereo (playback device)
21A, 21B Communication control unit (communication control means)
22A, 22B Content management unit (content management means)
23A, 23B Recording unit 24A, 24B Reproduction control unit (apparatus reproduction control means)
25A display 25B speaker 30 content playback system

Claims (23)

A mobile device capable of playing content,
Terminal playback control means for playing back content;
In-area device specifying means for specifying one or more communicable playback devices existing in a predetermined area;
Adapted device specifying means for specifying, from the playback devices specified by the in-region device specifying means, a playback device that conforms to a content protocol that is a rule relating to the playback content being played by the terminal playback control means;
A portable terminal comprising: a data transmission control unit configured to transmit data of the reproduction content to the reproduction device identified by the compatible device identification unit.   2. The portable terminal according to claim 1, wherein the data transmission control unit performs transmission of the data of the reproduction content in a state where the reproduction content cannot be recorded in a reproduction apparatus as a transmission destination. Terminal movement detection means for detecting movement of the terminal outside the predetermined range,
When the data transmission control means is transmitting data of the playback content to one or more communicable playback devices existing in the predetermined area, the terminal movement detection means causes the terminal movement detection means to move out of the predetermined range. The mobile terminal according to claim 2, wherein when it is detected that the mobile device has moved, transmission of the data of the playback content to the playback device is stopped.   The terminal playback control means continues to play back the playback content in its own terminal when there is no playback apparatus that conforms to the content protocol among the playback apparatuses specified by the in-region apparatus specifying means. The mobile terminal according to claim 1, 2, or 3.   2. The compatible device specifying means specifies a playback device that conforms to the content protocol of the playback content based on compatibility relationship information indicating the compatibility relationship between the playback device and the content protocol. 5. The mobile terminal according to any one of items 1 to 4. A display unit that displays one or more playback device candidates specified by the matching device specifying means;
Device selection means for the user to select a playback device from the playback device candidates displayed on the display unit;
6. The data transmission control unit according to claim 1, wherein the data transmission control unit transmits the data of the reproduction content to a reproduction device selected by the user via the device selection unit. Mobile devices.   The data transmission control means, when there are a plurality of playback devices specified by the compatible device specifying means, out of the plurality of playback devices, the playback device with the highest priority in advance, The portable terminal according to any one of claims 1 to 6, wherein reproduction content data is transmitted.   The data transmission control means has the highest predetermined priority among the plurality of communication systems when there are a plurality of communication systems for the playback device specified by the compatible device specifying means. The mobile terminal according to any one of claims 1 to 7, wherein data of the reproduction content is transmitted by a communication method. In the case where the reproduction content includes sound content used for sound reproduction and image content used for image reproduction, and a plurality of reproduction devices are identified by the matching device identification unit,
The data transmission control unit transmits data of the sound content to a playback device capable of playing back the sound content among the plurality of playback devices, and includes a playback device capable of playing back the image content. 9. The portable terminal according to claim 1, wherein the image content data is transmitted.   10. The portable terminal according to claim 1, wherein the data transmission control unit further transmits information indicating a reproduction position of the reproduction content when transmitting the reproduction content data. A recording unit for recording the reproduction content;
Recording management means for managing the recording of the playback content in the recording unit and the erasure of the playback content recorded in the recording unit;
2. The recording management unit according to claim 1, wherein when the data transmission control unit completes transmission of the data of the reproduction content, the recording management unit erases the data of the reproduction content recorded in the recording unit. The portable terminal described. A return instructing unit for instructing to return the playback content to the playback device to which the playback content transmitted by the data transmission control unit is transmitted;
The adapting device specifying unit causes the data transmission control unit to transmit a return instruction signal instructing the return of the reproduction content when receiving a return instruction of the reproduction content by the user via the return instruction unit. The mobile terminal according to claim 11.   The mobile terminal according to claim 11 or 12, wherein the data transmission control unit further transmits information indicating a reproduction position of the reproduction content when transmitting the data of the reproduction content. A playback device capable of playing content,
Communication control means for receiving data of the reproduction content transmitted from the mobile terminal according to any one of claims 1 to 10,
A playback device comprising: device playback control means for playing back the playback content received by the communication control means. A playback device capable of playing content,
Communication control means for receiving data of the reproduction content transmitted from the portable terminal according to claim 10,
A playback device comprising: device playback control means for playing back the playback content from which data has been received by the communication control means, from a playback start position determined from information indicating the playback position. A playback device capable of playing content,
Communication control means for transmitting and receiving data of the reproduction content to and from the mobile terminal according to claim 11, 12 or 13,
Device reproduction control means for reproducing the reproduction content received by the communication control means;
A recording unit for recording the reproduction content received by the communication control unit;
A reproduction apparatus comprising: content management means for erasing the reproduction content data recorded in the recording unit when the communication control means completes transmission of the reproduction content data.   The content management unit causes the communication control unit to transmit the data of the reproduction content when receiving a return instruction signal instructing the return of the data of the reproduction content received from the portable terminal. 16. The playback device according to 16. A playback device capable of playing content,
Communication control means for transmitting and receiving data of the reproduction content to and from the portable terminal according to claim 15;
Device reproduction control means for performing reproduction of the reproduction content received by the communication control means from a reproduction start position determined from information indicating the reproduction position;
A recording unit for recording the reproduction content received by the communication control unit;
A reproduction apparatus comprising: content management means for erasing the reproduction content data recorded in the recording unit when the communication control means completes transmission of the reproduction content data.   A content reproduction system comprising: the portable terminal according to any one of claims 1 to 10; and the reproduction device according to claim 14 or 15.   A content playback system comprising the mobile terminal according to claim 11, 12 or 13 and the playback device according to claim 16, 17 or 18.   The content reproduction program for operating a computer as each means in the portable terminal of any one of Claim 1- Claim 13.   A computer-readable recording medium on which the content reproduction program according to claim 21 is recorded. A method for controlling a mobile terminal capable of playing content,
A terminal playback control step for playing back content;
An in-area device specifying step for specifying one or more communicable playback devices existing in the predetermined area;
A compatible device specifying step of specifying a playback device that conforms to a content protocol that is a rule for the playback content being played back in the terminal playback control step, from the playback device specified in the in-region device specifying step;
A data transmission control step of transmitting data of the reproduction content to the reproduction device identified in the compatible device identification step.

Images