JP2013125489A - Portable terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To safely and easily establish connection to a server device even on a client device of the destination of a visit to efficiently reproduce content data stored in a server device on the client device.SOLUTION: A portable terminal device 30 stores first setting information and second setting information, where the former is used to establish first communication compliant with a first communication standard for acquiring content data from a server device 10 which stores the content data and the latter is used to establish second communication compliant with a second communication standard for transmitting the content data to a client device 20, establishes the first communication and the second communication on the basis of the stored first setting information and second setting information, acquires the content data from the server device 10 by the established first communication, and transmits the content data to the client device 20 by the second communication.

Description

  The present invention relates to a portable terminal device that transfers content data.

  Conventionally, a system is known in which content data such as video content is stored in a server device connected to a network, a client device acquires desired content data from the server device, and reproduces the content data.

  Patent Document 1 discloses a technique for creating a list of a plurality of server devices in which client devices are connected via a LAN (Local Area Network) in such a system. In this technology, by using the information on the time at which the setting for connecting to the network for each server device is completed, the arrangement order of the server devices in the list is determined, so that the server devices can be arranged in the same order in any client device. You can create a list of

  In addition, the client device may access a server device connected to an external network outside the LAN. FIG. 14 is a diagram for explaining the prior art in which the client device 1 accesses the server device 2 connected to the external network 5. In this case, the client device 1 accesses the server device 2 via the router 3. The router 3 is a communication device that connects the LAN 4 and the external network 5.

JP 2011-146887 A

  However, in the above-described conventional technology, when a client device connects to a server device, information for establishing a connection with the server device must be set in the client device.

  For example, when accessing a home server device storing content data from a client device outside the home and playing the content data, the account, password, IP address, port number, etc. of the home server device are input to the client device There is a need, but there is a desire to make such operations unnecessary from a security point of view.

  Further, in this case, the user needs to know information such as the account, password, IP address, and port number of the server device at home, and even if the user knows such information, the information is used. There is also a problem that the setting work for accessing the server device is complicated. Further, there may be a case where the client device at the outside location does not have means for connecting to an external network.

  In view of the above circumstances, the present invention establishes a connection with a server device safely and easily even when the client device is on the go, and efficiently reproduces content data stored in the server device on the client device. An object of the present invention is to provide a portable terminal device that can be made available.

  In order to solve the above problems, a first technical means of the present invention is a portable terminal device that transfers content data, and is a first device for acquiring the content data from a server device that stores the content data. First setting information used for establishing the first communication compliant with the communication standard, and second communication compliant with the second communication standard for transferring the content data to the client device. Based on the first setting information and the second setting information stored in the storage unit, the first communication and the second communication are established, A communication processing unit that acquires the content data from the server device by the established first communication and transfers the content data to the client device by the second communication; Characterized by comprising.

  According to a second technical means of the present invention, in the first technical means, information of the content data stored in the server device is acquired by the first communication, and a list of the content data is obtained based on the acquired information. The communication processing unit further includes a list generation unit for generating the list, and the communication processing unit transmits the list generated by the list generation unit to the client device by the second communication, and selects content data selected from the list. It is obtained from the server device.

  According to a third technical means of the present invention, in the first or second technical means, the list generation unit extracts content data to be included in the list based on whether or not a preset condition is met. It is characterized by that.

  According to a fourth technical means of the present invention, in any one of the first to third technical means, when the data format or bit rate of the content data is a data format or bit rate that cannot be reproduced by the client device, A data conversion control unit that controls a conversion process for converting the data format into a data format or bit rate that can be reproduced by the client device; and the communication processing unit controls the data format or bit under the control of the data conversion control unit. Content data whose rate has been converted is transmitted to the client device by the second communication.

  According to a fifth technical means of the present invention, in any one of the first to fourth technical means, the communication processing unit is provided in the client device as a result of transmitting predetermined data to the client device. When the amount of content data stored in a reproduction buffer that temporarily stores the content data until the data is reproduced exceeds a predetermined value, the client device sends the data amount excess notification transmitted from the client device. A speed at which the content data is transmitted to the client device is set based on whether the content is received.

  According to a sixth technical means of the present invention, in the fifth technical means, the communication processing unit measures a first maximum speed at which data can be transmitted by the first communication, and data by the second communication. , Based on whether the first maximum speed measured, the second maximum speed, and whether the data amount excess notification is received from the client device, A speed at which the content data is transmitted to the client device is set.

  According to a seventh technical means of the present invention, in any one of the first to sixth technical means, the communication processing unit transmits second setting information used for establishing the second communication as NFC (Near Field). The second communication is established with the client device which has transmitted to the client device by communication conforming to the communication standard of communication) and has made a connection request using the second setting information. To do.

  According to the present invention, the first setting information used for establishing the first communication conforming to the first communication standard for acquiring the content data from the server device storing the content data, and the content data as the client Second setting information used for establishing second communication conforming to the second communication standard for transfer to the apparatus is stored, and based on the stored first setting information and second setting information Then, the first communication and the second communication are established, the content data is acquired from the server device by the established first communication, and the content data is transferred to the client device by the second communication. Even if the client device is on the go, the client device establishes a connection with the server device safely and easily and stores the content data stored in the server device. It can be reproduced efficiently.

It is a figure which shows an example of a structure of the content data provision system which concerns on embodiment of this invention. It is a figure explaining the function as a router of a portable terminal device. It is a figure explaining the function as a proxy of a portable terminal device. It is a figure which shows an example of a structure of the server apparatus which concerns on embodiment of this invention. It is a figure which shows an example of a structure of the client apparatus which concerns on embodiment of this invention. It is a figure which shows an example of the content list displayed on a display part. It is a figure which shows an example of a structure of the portable terminal device which concerns on embodiment of this invention. It is a figure which shows an example of a structure of the data converter which concerns on embodiment of this invention. It is a sequence diagram which shows an example of the process sequence of the content data provision process which concerns on this invention. It is a sequence diagram which shows an example of the process sequence of the content data provision process which concerns on this invention. It is a sequence diagram which shows an example of the process sequence of the content data provision process which concerns on this invention. It is a sequence diagram which shows an example of the process sequence of the content data provision process which concerns on this invention. It is a sequence diagram which shows an example of the process sequence of the content data provision process which concerns on this invention. It is a figure explaining the prior art in which a client apparatus accesses the server apparatus connected to the external network.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing an example of a configuration of a content data providing system according to an embodiment of the present invention. In this content data providing system, a server device 10, a client device 20, a mobile terminal device 30, and a data conversion device 40 are connected via a network. 1 shows a case where there are two server devices 10, one client device 20, and one data conversion device 40, the number of server devices 10, client devices 20, and data conversion devices 40 is as follows. Any number may be used as long as it is one or more.

  For example, the server device 10 is a digital media server device that can provide content data to devices connected via a network such as a Blu-ray recorder or a computer installed at home or outside the home. The client device 20 is a digital media player that can receive content data via a network and reproduce the received content data, such as a television receiver installed outside the home. The mobile terminal device 30 is a portable device such as a smartphone that can transmit and receive content data.

  For example, let us consider a case where the client device 20 reproduces content data stored in the server device 10 installed at home while away from home. The mobile terminal device 30 stores first setting information for establishing long-distance communication with the server device 10 so that content data can be acquired from the server device 10. In addition, the mobile terminal device 30 stores second setting information for establishing medium-range communication with the client device 20 and transferring the content data to the client device 20.

  Here, the first setting information is information such as an account, a password, an IP (Internet Protocol) address, and a port number used when the mobile terminal device 30 connects to the server device 10. Since this 1st setting information changes for every server apparatus 10 to which the portable terminal device 30 connects, the portable terminal device 30 memorize | stores 1st setting information for each server apparatus 10. FIG.

  The second setting information is information such as a protocol, an encryption method, an SSID (Service Set Identifier), an IP address, and a password used when the client device 20 connects to the mobile terminal device 30.

  Then, the mobile terminal device 30 makes a connection request to the server device 10 using information such as an account, a password, an IP address, and a port number. Thereafter, the mobile terminal device 30 acquires content data from the server device 10 via a long-distance communication path established by connecting to the server device 10. Here, the long-distance communication path is a communication path established by using a communication standard such as W-CDMA (Wideband Code Division Multiple Access), for example, and communication between apparatuses located at relatively distant positions. It is a communication path that enables

  On the other hand, the mobile terminal device 30 is connected to the client device 20 via a short-range communication path. Here, the short-distance communication path is a communication path established using a communication standard such as NFC (Near Field Communication), for example, and communication between devices at a relatively short distance (about 10 cm) is possible. Is a communication path. Then, the mobile terminal device 30 transmits to the client device 20 information on a protocol, an encryption method, an SSID, an IP address, and a password, which are second setting information for establishing medium-range communication.

  Subsequently, the client device 20 makes a connection request to the mobile terminal device 30 using the protocol, encryption method, SSID, IP address, and password information received from the mobile terminal device 30. Thereafter, the client device 20 acquires content data from the mobile terminal device 30 via a medium-range communication path established by connecting to the server device 10. Here, the medium distance communication path is a communication path established using, for example, a communication standard of WiFi (Wireless Fidelity) (registered trademark) communication, and communication between devices at a distance of about several tens of meters is performed. This is a communication path to be enabled.

  In the above process, the mobile terminal device 30 operates as a router and a proxy in communication between the server device 10 and the client device 20.

  FIG. 2 is a diagram illustrating a function of the mobile terminal device 30 as a router, and FIG. 3 is a diagram illustrating a function of the mobile terminal device 30 as a proxy. As shown in FIG. 2, the mobile terminal device 30 is connected to a long-distance communication path in which communication is performed according to a W-CDMA communication standard and a medium-distance communication path in which communication is performed according to a communication standard of WiFi communication. In order to perform transmission / reception of IP packets in the network layer (third layer) in the OSI reference model, the network function in the data link layer (second layer) and physical layer (first layer) is provided.

  As illustrated in FIG. 3, the mobile terminal device 30 communicates with the server device 10 as the client device 20 and directly communicates with the client device 20 instead of the client device 20 that does not directly communicate with the server device 10. Instead of the server device 10 not performing communication, the server device 10 communicates with the client device 20.

  Thereby, the mobile terminal device 30 can relay communication between the server device 10 and the client device 20. Further, since the client device 20 does not need to store information such as an account necessary for connecting to the server device 10, it is possible to prevent information such as an account from being leaked. Furthermore, even if the client device 20 is not connected to an external network, the content data stored in the server device 10 can be reproduced by the client device 20 without performing complicated operations.

  Next, the configuration of the server device 10 according to the embodiment of the present invention will be described. FIG. 4 is a diagram illustrating an example of the configuration of the server apparatus 10 according to the embodiment of the present invention. The server device 10 includes an input unit 11, a display unit 12, a communication processing unit 13, a storage unit 14, and a control unit 15.

  The input unit 11 is an input device such as an input button or a keyboard. The input unit 11 may be a remote controller that remotely operates the server device 10. The display unit 12 is a display device such as a display window or a liquid crystal display that displays various information. The communication processing unit 13 is a processing unit that communicates with other devices via a network.

  For example, since the communication processing unit 13 performs communication conforming to the W-CDMA communication standard, when there is a connection request from the mobile terminal device 30, the communication processing unit 13 authenticates the mobile terminal device 30 and the mobile terminal device 30 is valid. If it is determined that the right to connect is established, communication is performed with the mobile terminal device 30.

  The storage unit 14 is a storage device such as a memory or a hard disk device. The storage unit 14 stores long-distance communication establishment data 14a, content data 14b, and content attribute data 14c.

  The long-distance communication establishment data 14a is setting data used to establish communication conforming to the W-CDMA communication standard. For example, the long-distance communication establishment data 14a is account and password data used for authentication of a device connected to the server device 10 that performs communication compliant with the W-CDMA communication standard.

  The content data 14b is content data reproduced by the client device 20. The content attribute data 14c is attribute data of each content. For example, the content attribute data 14c includes the title, playback time, video service name of each content, the IP address and port number of the server device 10 connected to obtain the content, the codec, bit rate, parental of the content data. Information such as level, authentication information, and PPV (Pay-Per-View) price.

  The control unit 15 is a control device that controls the server device 10 as a whole, such as a CPU (Central Processing Unit). The control unit 15 includes a content management unit 15a. The content management unit 15a is a processing unit that manages registration and deletion of the content data 14b and the content attribute data 14c. This registration and deletion is performed according to an instruction from a user who operates the server device.

  Next, the configuration of the client device 20 according to the embodiment of the present invention will be described. FIG. 5 is a diagram showing an example of the configuration of the client device 20 according to the embodiment of the present invention. The client device 20 includes an input unit 21, a display unit 22, a communication processing unit 23, a storage unit 24, a reproduction buffer 25, and a control unit 26.

  The input unit 21 is an input device such as an operation button. The input unit 21 may be a remote controller that remotely operates the client device 20. The display unit 22 is a display device such as a liquid crystal display. The communication processing unit 23 is a processing unit that communicates with other devices via a network.

  For example, when the mobile terminal device 30 is nearby, the communication processing unit 23 receives radio waves from the mobile terminal device 30 and performs communication based on the NFC communication standard. Specifically, the communication processing unit 23 includes an NFC chip (not shown), and performs WiFi communication between the client device 10 and the mobile terminal device 30 from the NFC reader / writer included in the mobile terminal device 30. Receives necessary protocol, encryption method, SSID, IP address, and password information. Then, the communication processing unit 23 establishes WiFi communication with the mobile terminal device 30 using the protocol, encryption method, SSID, IP address, and password information.

  The storage unit 24 is a storage device such as a memory or a hard disk device. The storage unit 24 stores medium distance communication establishment data 24a and a content list 24b. The medium distance communication establishment data 24a is data received from the mobile terminal device 30 by communication conforming to the NFC communication standard, and includes protocols, encryption methods, SSIDs, IP addresses, and passwords necessary for performing WiFi communication. Information. The content list 24 b is information on the content list received from the mobile terminal device 30. The user selects content to be reproduced from the content list.

  FIG. 6 is a diagram illustrating an example of a content list displayed on the display unit 22. This content list includes content title, playback time, video service name, parental information, and PPV price information. In addition, when content is selected by the user in this display, a preview image of the content is displayed.

  Returning to the description of FIG. 5, the reproduction buffer 25 is a buffer for temporarily storing the content data stream-transmitted by another device until the content data is reproduced. The control unit 26 is a control device that controls the client device 20 as a whole, such as a CPU.

  The control unit 26 includes a content reproduction unit 26a and a near overflow detection unit 26b. The content reproduction unit 26a is a processing unit that reproduces the content data that is selected in the content list illustrated in FIG. 6 and transmitted by the server device 10 and then stored in the reproduction buffer 25.

  The near overflow detection unit 26b determines that the near overflow has occurred when the amount of content data stored in the reproduction buffer 25 exceeds a predetermined value, and notifies the mobile terminal device 30 that a near overflow has occurred. It is a processing part which transmits to. This predetermined value is desirably set as large as possible under the condition that no overflow occurs.

  Next, the configuration of the mobile terminal device 30 according to the embodiment of the present invention will be described. FIG. 7 is a diagram illustrating an example of the configuration of the mobile terminal device 30 according to the embodiment of the present invention. The mobile terminal device 30 includes an input unit 31, a display unit 32, a communication processing unit 33, a storage unit 34, and a control unit 35.

  The input unit 31 is an input device such as a touch panel. The display unit 32 is a display device such as a liquid crystal display. The communication processing unit 33 is a processing unit that communicates with other devices via a network.

  For example, the communication processing unit 33 makes a connection request to the server apparatus 10 using information such as an account, a password, an IP address, and a port number in order to perform communication conforming to the W-CDMA communication standard. The communication processing unit 33 communicates with the server device 10 when the connection request is authenticated by the server device 10 and a communication connection conforming to the W-CDMA communication standard is established. Do.

  When the communication processing unit 33 can detect the client device 20 by a method conforming to the NFC communication standard, the communication processing unit 33 transmits specific setting information to the client device 20 by communication conforming to the communication standard. Specifically, the communication processing unit 33 includes an NFC reader / writer (not shown), and the NFC reader / writer includes the NFC chip between the client device 10 and the mobile terminal device 30. The protocol, encryption method, SSID, IP address, and password information necessary for performing WiFi communication are transmitted.

  After that, when there is a connection request for establishing WiFi communication from the client apparatus 20 using the protocol, encryption method, SSID, IP address, and password information, the communication processing unit 33 determines that the connection request is valid. Authenticate whether or not Then, when the connection request is valid, the communication processing unit 33 establishes WiFi communication with the client device 20 and performs communication with the client device 20.

  As described above, information such as a protocol necessary for performing WiFi communication by communication conforming to the NFC communication standard is transmitted to the client device 20, and the client device 20 connects to the portable terminal device 30 using the protocol or the like. Accordingly, even if the client device 20 does not store information such as a protocol in advance, the WiFi communication can be established only by bringing the mobile terminal device 30 closer to the client device 20.

  In addition, the communication processing unit 33 transmits a test stream to the client device 20 and detects the occurrence of a near overflow. If a near overflow occurs, the communication processing unit 33 gradually reduces the bit rate at the time of transmitting the test stream until the near overflow does not occur. The ideal bit rate at which playback is possible is detected.

  Further, the communication processing unit 33 detects the maximum transfer rate of the upstream long-distance communication path and the maximum transfer rate of the downstream medium-range communication path. The communication processing unit 33 performs this detection process using, for example, a commonly used network transfer rate measurement tool. Then, the communication processing unit 33 sets the smallest one of the ideal bit rate, the maximum transfer rate of the upstream long-distance communication path, and the maximum transfer rate of the downstream medium-range communication path as the transfer bit rate of the content data. To do.

  In this content providing system, content data is transmitted via a long-distance communication path and a medium-distance communication path having different communication qualities, so that an underflow or overflow occurs in the mobile terminal device 30 or the client device 20 during the transfer of content data. May occur. Further, even if the client device 20 is heavily loaded during reception of content data and the transfer bit rate of content data that can be handled by the playback capability of the client device 20, the playback quality deteriorates during playback (for example, an overflow occurs). Block noise may be visible). For this reason, the transfer bit rate of the content data is set as described above, the occurrence of underflow and overflow is suppressed, and the reproduction quality is prevented from deteriorating.

  In the case of content data for which a low-quality playback bit rate and a high-quality playback bit rate can be selected, the above processing is performed for the low-quality playback bit rate or the high-quality playback bit rate selected by the user. Should be done.

  The storage unit 34 is a storage device such as a memory or a hard disk device. The storage unit 34 stores medium-range communication establishment data 34a, long-distance communication establishment data 34b, reproduction capability data 34c, content attribute data 34d, filtering condition data 34e, user data 34f, and a content list 34g.

  The medium distance communication establishment data 34a is setting data used for establishing WiFi communication between the client device 20 and the mobile terminal device 30, and is the same as the medium distance communication establishment data 24a described in FIG. Is.

  The long-distance communication establishment data 34b is setting data used to establish communication conforming to the W-CDMA communication standard between the server device 20 and the mobile terminal device 30. For example, the mobile terminal device 30 This is information such as an account, password, IP address, and port number used when connecting to the server device 10.

  The reproduction capability data 34c is data indicating the reproduction capability of the content data of the client device 20. For example, the reproduction capability data 34c includes data such as a codec and a bit rate of content data that can be reproduced by the client device 20.

  The content attribute data 34d is attribute data of each content, and includes data similar to the content attribute data 14c shown in FIG. The filtering condition data 34e is data in which conditions for selecting contents to be included in the content list shown as an example in FIG. 6 are stored.

  The filtering condition data 34e includes conditions such as a video service name, parental information, PPV price, user restriction information, and the like. For example, when a video service name is selected as a condition by the user and a video service name is further specified, only content corresponding to the video service name is displayed in the content list.

  When parental information is selected as a condition, only content that matches the age of the user is displayed in the content list. When the PPV price is selected as a condition, only content that can be viewed with a separately managed user balance is displayed in the content list. Furthermore, when content that the user is prohibited from viewing is designated in advance and user restriction information is selected as a condition, content other than that content is displayed in the content list.

  The user data 34f is data that stores the user's age, balance information, and the like. As described above, the user data 34f is data that is referred to when selecting content to be displayed in the content list.

  The content list 34g is a list of content that can be reproduced by the client device 20. The content list 34g does not include content excluded by the conditions stored in the filtering condition data 34e.

  The control unit 35 is a control device that controls the mobile terminal device 30 as a whole, such as a CPU. The control unit 35 includes a data conversion control unit 35a and a list generation unit 35b. The data conversion control unit 35 a is a processing unit that controls to convert content data so that the client device 20 can reproduce the content data provided by the server device 10 when the client device 20 cannot reproduce the content data.

  Specifically, the data conversion control unit 35 a instructs the data conversion device 40 that converts the content data to convert the content data so that it can be played back by the client device 20.

  For example, if the codec of the content data that can be reproduced by the client device 20 does not match the codec of the content data provided by the server device 10, the data conversion control unit 35 a can code the codec of the content data that the client device 20 can reproduce. To convert to. Depending on the codec, dedicated hardware may be required, but by converting the codec, it is possible to reproduce the content data on the client device 20.

  In addition, when the bit rate of the content data that can be reproduced by the client device 20 does not match the bit rate of the content data provided by the server device 10, the data conversion control unit 35 a determines the bit rate of the content data by the client device 20. Instructs to convert to a reproducible bit rate.

  The list generation unit 35 b is a processing unit that generates a content list to be transmitted to the client device 20. The list generation unit 35b collects content information stored in each server device 10 from each server device 10, acquires content data information that can be reproduced by the client device 20 from the client device 20, and Generate a list using the information.

  For example, the process of collecting the content information stored in each server device 10 from each server device 10 may be executed using a Browse / Search action of UPnP-AV (Universal Plug and Play Audio Visual) standard. it can. Further, the process of acquiring content data information that can be reproduced by the client apparatus 20 from the client apparatus 20 can be executed by using a GetProtocolInfo action of the UPnP-AV standard.

  However, the list generation unit 35b does not include the content excluded by the conditions stored in the filtering condition data 34e in the list. On the other hand, the list generation unit 35b adds content data converted so as to be reproducible by the client device 20 to the list under the control of the data conversion control unit 35a.

  The list of contents generated in this way is transmitted to the client apparatus 20, and the user selects contents desired to be reproduced from the list. In this way, by collecting the content information stored in each server device 10 from each server device 10 and generating a content list, a reproduction interface (for example, a service interface or a container provided by each server device 10) Even when the browser or various player applications) are different or the authentication method is different (for example, the VOD service uses an authentication method different from general-purpose communication means such as ssh), the content stored in each server device 10 Can be provided to the user.

  Next, the configuration of the data conversion device 40 according to the embodiment of the present invention will be described. FIG. 8 is a diagram showing an example of the configuration of the data conversion apparatus 40 according to the embodiment of the present invention. The data conversion device 40 includes an input unit 41, a display unit 42, a communication processing unit 43, a storage unit 44, and a control unit 45.

  The input unit 41 is an input device such as a keyboard or a mouse. The display unit 42 is a display device such as a liquid crystal display that displays various information. The communication processing unit 43 is a processing unit that communicates with other devices via a network.

  For example, since the communication processing unit 43 performs communication conforming to the W-CDMA communication standard, when there is a connection request from the mobile terminal device 30, the communication processing unit 43 authenticates the mobile terminal device 30, and the mobile terminal device 30 is valid. If it is determined that the right to connect is established, communication is performed with the mobile terminal device 30.

  The storage unit 44 is a storage device such as a memory or a hard disk device. The storage unit 44 stores long-distance communication establishment data 44a and a conversion list 44b. The long-distance communication establishment data 44a is setting data used to establish communication compliant with the W-CDMA communication standard. For example, the long-distance communication establishment data 44 a is account or password data used for authentication of a device connected to the data conversion device 40.

  The conversion list 44b is a list of codecs and bit rates that can be converted. For example, the conversion list 44b stores a codec before conversion, a codec after conversion, a bit rate before conversion, and a bit rate after conversion in association with each other.

  The control unit 45 is a control device that controls the data conversion device 40 as a whole, such as a CPU. The control unit 45 includes a data conversion unit 45a. The data conversion unit 45a is a processing unit that converts content data into content data that can be reproduced by the client device 20.

  Specifically, the data conversion unit 45a refers to the conversion list 44b when there is an inquiry from the mobile terminal device 30 whether the codec and bit rate of the content data can be converted to another codec and bit rate. It is determined whether or not conversion is possible. When the data conversion unit 45a determines that the codec and the bit rate can be converted, the data conversion unit 45a converts the codec and the bit rate.

  Next, a processing procedure of content data providing processing according to the present invention will be described. 9 to 13 are sequence diagrams showing an example of a processing procedure of content data providing processing according to the present invention.

  First, the communication processing unit 33 of the mobile terminal device 30 detects the client device 20 and establishes short-range communication with the communication processing unit 23 of the client device 20 (step S101). For example, near field communication is communication based on the NFC communication standard.

  Then, the communication processing unit 23 of the client device 20 acquires data for establishing the medium distance communication from the portable terminal device 30 (step S102), and establishes the medium distance communication with the portable terminal device 30 using the data. (Step S103). For example, the medium distance communication is WiFi communication. In this case, the data for establishing the medium distance communication is information on a protocol, an encryption method, an SSID, an IP address, and a password for connecting to the mobile terminal device 30.

  Thereafter, the communication processing unit 33 of the mobile terminal device 30 establishes long-distance communication between the two server devices 10 and the data conversion device 40 (step S104). For example, long-distance communication is communication based on the W-CDMA communication standard. Here, the communication processing unit 33 stores information such as an account, a password, an IP address, and a port number for connecting to the two server devices 10 and the data conversion device 40 in advance, and uses those information. Establish long-range communication.

  After the long distance communication is established, the communication processing unit 33 notifies the client device 20 that the long distance communication has been established (step S105). Thereafter, data communication is possible between the server device 10 and the client device 20.

  Then, the list generation unit 35b of the mobile terminal device 30 accepts the setting of filtering conditions for selecting the content to be included in the content list (step S106). Thereafter, the list generation unit 35b of the mobile terminal device 30 acquires the content attribute data 14c stored in each server device 10 (step S107).

  The content attribute data 14c includes a list of contents stored in each server device 10, a title of each content, a playback time, a moving image service name, an IP address of the server device 10 connected to obtain the content, Information such as port number, codec of the content data, bit rate, parental level, authentication information, PPV (Pay-Per-View) price, and the like are included.

  Then, as illustrated in FIG. 10, the list generation unit 35b of the mobile terminal device 30 stores the acquired content attribute data 14c as content attribute data 34d in the storage unit 34 (step S108). The content attribute data 34d is used to generate a list of content that can be reproduced by the client device 20. As described above, by collecting the content attribute data 14c in advance, when there is a content list transmission request from the client device 20, it is possible to quickly respond to the request.

  Thereafter, the data conversion control unit 35a of the mobile terminal device 30 makes a transmission request for reproduction capability information to the client device 20 (step S109). The reproduction capability information is information such as a codec and a bit rate of content data that can be reproduced by the client device 20, for example.

  In response to the request, the content playback unit 26a of the client device 20 transmits playback capability information to the data conversion control unit 35a (step S110). Then, the data conversion control unit 35a stores the reproduction capability information in the storage unit 34 as reproduction capability data 34c (step S111).

  Thereafter, the data conversion control unit 35a determines whether or not there is content of a codec or bit rate that cannot be reproduced by the client device 20 among the codec and bit rate of the content included in the content attribute data 34d (step S112).

  When there is a codec or bit rate content that cannot be played back by the client device 20 (YES in step S112), the data conversion control unit 35a plays back the content data on the client device 20 to the data conversion device 40. An inquiry is made as to whether or not it can be converted into content data with a possible codec or bit rate (step S113).

  The data conversion unit 45a of the data conversion device 40 refers to the conversion list 44b that stores the convertible codec and bit rate, and the codec and bit rate content data that cannot be reproduced by the client device 20 can be reproduced by the client device 20. Or whether it can be converted into bit-rate content data (step S114). Then, the data conversion unit 45a transmits the determination result to the data conversion control unit 35a of the mobile terminal device 30 (step S115). Then, the data conversion control unit 35a stores the determination result in the content attribute data 34d (step S116).

  On the other hand, as shown in FIG. 11, the content reproduction unit 26a of the client device 20 accepts a content list acquisition request made by the user (step S117). The content list is as shown in FIG. 6 as an example. Then, the content reproduction unit 26a sends a content list transmission request to the list generation unit 35b of the mobile terminal device 30 (step S118).

  Subsequently, the list generation unit 35b extracts content that can be played back by the client device 20 from the content stored in the content attribute data 34d. Specifically, the list generation unit 35b refers to the content attribute data 34d and the reproduction capability data 34c, and extracts content of a codec and a bit rate that can be reproduced by the client device 20 (step S119). The content extracted here includes content that can be reproduced by the client device 20 by data conversion.

  Furthermore, the list generation unit 35b acquires information on the filtering condition whose setting has been received in step S106 of FIG. 9 (step S120). For example, as described above, the filtering condition data includes conditions such as a moving image service name, parental information, PPV price, and user restriction information. Then, the list generation unit 35b further extracts content satisfying the filtering condition from the content extracted in step S119 (step S121).

  Thereafter, the list generation unit 35b transmits a content list including only the content extracted in step S121 to the client device 20 (step S122). Then, the content playback unit 26a of the client device 20 receives a playback request for content selected by the user from the content included in the content list (step S123).

  Then, as shown in FIG. 12, the content playback unit 26a requests the mobile terminal device 30 to transmit the data of the content for which the playback request has been accepted (step S124). Thereafter, the data conversion control unit 35a of the mobile terminal device 30 determines whether or not data conversion for converting the codec and the bit rate is necessary for reproducing the content data on the client device 20 (step S125). .

  When it is determined that data conversion is necessary (YES in step S125), the data conversion control unit 35a sends a data conversion processing execution request and content data after conversion to the data conversion device 40. A request is made (step S126). This data conversion processing execution request includes information about the converted codec and bit rate.

  In addition, the data conversion control unit 35a requests the server device 10 storing the content data to transmit the content data to the data conversion device 40 (step S127). Then, the server device 10 that has received the request transmits the content to the data conversion device 40 (step S128).

  Thereafter, the data conversion unit 45a of the data conversion device 40 performs a data conversion process for converting the codec and bit rate of the content data received from the server device 10 into the codec and bit rate notified from the mobile terminal device 30 (step). S129). Then, the data conversion unit 45a transmits the content data after the data conversion process to the mobile terminal device 30 (step S130).

  When it is determined in step S125 that data conversion of the content data is unnecessary (NO in step S125), the data conversion control unit 35a of the mobile terminal device 30 stores the content data in the server device 10 that stores the content data. The content data is requested to be transmitted to the mobile terminal device 30 (step S131). And the server apparatus 10 which received the request | requirement transmits the content to the portable terminal device 30 (step S132).

  Thereafter, the communication processing unit 33 of the mobile terminal device 30 transmits a test stream to the client device 20 at the same bit rate as that set in advance for transmission of content data, as shown in FIG. (Step S133).

  Then, the near overflow detection unit 26b of the client device 20 executes a near overflow detection process for detecting the occurrence of the near overflow (step S134). And the near overflow detection part 26b notifies the detection result to the portable terminal device 30 (step S135).

  Thereafter, the communication processing unit 33 of the mobile terminal device 30 determines whether or not a near overflow has occurred from the detection result (step S136). If a near overflow has occurred (YES in step S136), the bit rate for transmitting the test stream is decreased by a predetermined value (step S137). Then, the communication processing unit 33 transmits the test stream again (step S133), and continues the subsequent processing.

  When the near overflow has not occurred (NO in step S136), the communication processing unit 33 sets the bit rate at that time as the ideal bit rate (step S138).

  Further, the communication processing unit 33 detects the maximum transfer rate of the upstream long-distance communication path and the maximum transfer rate of the downstream medium-range communication path (step S139). Then, the communication processing unit 33 sets the minimum of the ideal bit rate, the maximum transfer rate of the upstream long-distance communication path, and the maximum transfer rate of the downstream medium-range communication path as the transfer rate of the content data. (Step S140). Subsequently, the communication processing unit 33 transmits content data to the client device 20 at the set transfer rate (step S141).

  Thereafter, the content playback unit 26a of the client device 20 plays back the content data received from the mobile terminal device 30 (step S142). And this content data provision process is complete | finished.

  The present invention is not limited to the above-described embodiments, and various modifications and corrections can be made without departing from the scope of the present invention. For example, in the above embodiment, the user specifies the content to be reproduced from the content list by operating the client device 20, but the user may specify the content from the content list by operating the mobile terminal device 30. Good.

  Moreover, in the said embodiment, although the data converter 40 was provided independently of the portable terminal device 30, the hardware which implement | achieves the function of the data converter 40 in the portable terminal device 30 is mounted, or data The function of the conversion device 40 may be realized by software and data conversion may be executed.

DESCRIPTION OF SYMBOLS 1,20 ... Client device, 2,10 ... Server device, 3 ... Router, 4 ... LAN, 5 ... External network, 11, 21, 31, 41 ... Input part, 12, 22, 32, 42 ... Display part, 13 , 23, 33, 43 ... communication processing unit, 14, 24, 34, 44 ... storage unit, 14a, 34b, 44a ... long-distance communication establishment data, 14b ... content data, 14c, 34d ... content attribute data, 15, 26, 35, 45 ... control unit, 15a ... content management unit, 24a, 34a ... medium distance communication establishment data, 24b ... content list, 25 ... playback buffer, 26a ... content playback unit, 26b ... near overflow detection unit, 30 ... mobile terminal device, 34c ... reproduction capability data, 34e ... filtering condition data, 34f ... user data, 34g ... content list DOO, 35a ... data conversion control unit, 35b ... list generating unit, 40 ... data conversion device, 44b ... conversion list, 45a ... data conversion unit.

Claims (7)

A portable terminal device for transferring content data,
First setting information used for establishing first communication conforming to a first communication standard for acquiring the content data from the server device storing the content data, and transferring the content data to the client device A storage unit for storing second setting information used for establishing the second communication in conformity with the second communication standard for
Based on the first setting information and the second setting information stored in the storage unit, the first communication and the second communication are established, and from the server device by the established first communication A communication processing unit for acquiring the content data and transferring the content data to the client device by the second communication;
A portable terminal device comprising:   The information processing apparatus further includes a list generation unit that acquires information on the content data stored in the server device through the first communication, and generates a list of the content data based on the acquired information. The list generated by the generation unit is transmitted to the client device through the second communication, and content data selected from the list is acquired from the server device. Mobile terminal device.   The mobile terminal device according to claim 1, wherein the list generation unit extracts content data to be included in the list based on whether or not a preset condition is satisfied.   When the data format or bit rate of the content data is a data format or bit rate that cannot be reproduced by the client device, a conversion process for converting the data format into a data format or bit rate that can be reproduced by the client device is controlled. A data conversion control unit is further provided, and the communication processing unit transmits the content data whose data format or bit rate is converted by the control by the data conversion control unit to the client device by the second communication. The portable terminal device according to any one of claims 1 to 3.   Content data stored in a reproduction buffer provided in the client device as a result of transmitting predetermined data to the client device and temporarily storing the content data until the content data is reproduced as a result of transmitting predetermined data to the client device The rate at which the content data is transmitted to the client device is set based on whether or not the data amount excess notification transmitted from the client device is received from the client device when the amount of data exceeds a predetermined value. The mobile terminal device according to claim 1, wherein the mobile terminal device is a mobile terminal device.   The communication processing unit measures a first maximum speed at which data can be transmitted by the first communication, measures a second maximum speed at which data can be transmitted by the second communication, and measures the measured first A speed at which the content data is transmitted to the client device is set based on a maximum speed of 1, the second maximum speed, and whether or not the data amount excess notification is received from the client device. The portable terminal device according to claim 5.   The communication processing unit transmits second setting information used for establishing the second communication to the client device by communication conforming to a communication standard of NFC (Near Field Communication), and the second setting information. The mobile terminal device according to claim 1, wherein the second communication is established with the client device that has made a connection request using the server.

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