JP2009122911A - Portable communication terminal, content reproduction system, content distribution system, control method, control program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve a content distribution system allows a user of a content reproduction device having a DMP function to easily grasp the state of portable communication terminal equipment having a DMS function. <P>SOLUTION: A mobile phone 1 is configured to transmit content stored in its own device through a domestic LAN 201 to a DMP device 101 in response to a request from the DMP device 101, and provided with: a state detection part 32 for detecting the state of its own device related with content transmission; and a communication control part 30 for transmitting the state information indicating the content of the state detected by the state detection part 32 through the domestic LAN 201 to the DMP device 101. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technique for detecting a server device connected to a network by a client device.

  In recent years, along with the development and popularization of wired and wireless data communication network technology, in addition to portable information devices represented by personal computers, PDAs (Personal Digital Assistants) and mobile phones, home appliances such as audio players and television receivers. A content distribution system for connecting a network via a LAN (Local Area Network) has been proposed. DLNA guidelines (hereinafter referred to as DLNA) for ensuring the compatibility of home appliances, personal computers, and mobile devices are defined by the Digital Living Network Alliance (DLNA) for the content distribution system.

  In DLNA, a content playback device that plays back content is called DMP (Digital Media Player), and a content delivery device that publishes and delivers stored content is called DMS (Digital Media Server).

  In order to realize content sharing in a local network such as a home network, DLNA is a mechanism for searching for a DMS existing on the network, a mechanism for searching for content between DMP and DMS, Defines a mechanism for distributing content to DMP. In general, a wired LAN (Local Area Network) or a wireless LAN is used to connect each device to the network.

  When a home appliance that conforms to DLNA is connected to a home network, digital content data such as photos, videos, and music held by the home server can be converted into a home appliance having a DMP function through interconnection with a home server having a DMS function. It can be shared by devices. Viewing digital content data of the home server from a TV or PC (Personal Computer) having a DMP function has already been put into practical use.

  In the future, if the DMS function is implemented in a mobile communication terminal device such as a mobile phone, it is possible to browse photos and video files stored in the mobile phone on a home TV or PC by using the DLNA mechanism. become able to.

  Here, as shown in Patent Document 1, in a conventional home network system, a user of a client device (such as a PC) allows a server device (such as a PC or a video recorder) connected to the network to correspond to a service. There has been a need for a mechanism that can immediately grasp the situation.

Similarly, in a DLNA-compliant content distribution system including a mobile phone equipped with a DMS function, a DMP user intuitively identifies a mobile phone as a DMS connected to the same network, and possesses them. A mechanism is needed to make it possible to grasp the content to be played.
JP 2004-348455 A (published December 9, 2004)

  However, when the DMS function is implemented in the mobile communication terminal device, there is a problem only by applying the technique of Patent Document 1 described above.

  That is, since the mobile communication terminal device is battery-driven or a mobile body that exchanges information wirelessly, home appliances that are permanently installed in the home (that is, always connected to a local network) Unlike the case, the power may be cut off or the local network may not be connected for a long time.

  That is, the mobile communication terminal device falls into an abnormal state (a specific example will be described later) such as a state where it is difficult to distribute the stored content in a comfortable environment or a state where it cannot be normally distributed, and the DMS function is normal. The inconvenience that it cannot be executed easily occurs.

  In the conventional configuration, the DMP user can grasp the DMS that can receive the service, but cannot know whether or not the DMP is in a state where the content can be distributed. Therefore, the user makes a content distribution request to the DMS in the abnormal state, and the user cannot obtain the content normally from the DMS in the abnormal state, and there is a problem that the convenience for the user is impaired.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to enable a user of a content reproduction device having a DMP function to easily grasp the state of a mobile communication terminal device having a DMS function. It is to realize a mobile communication terminal device, a content reproduction device, a content distribution system, a control method, a control program, and a recording medium.

  In order to solve the above problems, a mobile communication terminal device according to the present invention includes a communication unit that connects to a local network and communicates with a content reproduction device, and is stored in the device according to a request from the content reproduction device. In the mobile communication terminal device that transmits the content being transmitted to the content reproduction device via the local network, the state detection means for detecting the state of the device related to content distribution, and the state detected by the state detection means Transmission control means for transmitting status information indicating the above to the content reproduction device via the communication unit.

  According to the above configuration, the state detection unit of the mobile communication terminal apparatus detects the state of the own apparatus related to content distribution. Then, the transmission control means transmits the state information indicating the contents of the state detected by the state detecting means to the content reproduction device via the local network.

  Thereby, the content reproduction apparatus can acquire the state information of the mobile communication terminal device via the local network, and can grasp the state of the mobile communication terminal device. The acquired state of the mobile communication terminal device is a state related to the content distribution function of the mobile communication terminal device. Therefore, the user of the content reproduction device can determine whether or not it is a state that can be executed without problems when content is acquired from the mobile communication terminal device based on the acquired state information. .

  For example, the status information acquired from the mobile communication terminal device is “a state in which it is difficult for the mobile communication terminal device to transmit content in a comfortable environment (transmission speed, etc.)” or “a state in which content cannot be distributed in the near future. When an abnormal state such as “a state where there is a possibility of falling” is indicated, it is possible to prevent a distribution trouble by not making a content distribution request to the mobile communication terminal device. As a result, user convenience is improved.

  The communication unit is a wireless communication unit that wirelessly connects to the local network and communicates with the content reproduction device, and the state detection unit monitors the wireless communication unit and receives it via the local network. The intensity of the radio signal may be detected, and the transmission control unit may transmit the radio wave intensity detected by the state detection unit in the state information.

  According to the above configuration, the mobile communication terminal device is a wireless communication device, and communicates with the content reproduction device via the local network by wirelessly connecting to an access point of the local network.

  The state detecting means monitors a wireless communication unit included in the mobile communication terminal device, and detects the intensity of the radio signal received via the local network. The transmission control means transmits the state information including the radio wave intensity detected by the state detection means.

  As a result, the content reproduction device can acquire the radio wave intensity of the mobile communication terminal device as the state information related to content distribution.

  For example, when the content playback device receives status information indicating an abnormality such as “a weak radio wave strength” from the mobile communication terminal device, the user of the content playback device acquires content from the mobile communication terminal device. It can be predicted that it will take time, and it is possible to prevent distribution troubles by not making a content distribution request to the mobile communication terminal device. As a result, user convenience is improved.

  Furthermore, the state detection unit may detect a remaining charge amount of the battery unit of the device itself, and the transmission control unit may transmit the remaining charge amount detected by the state detection unit in the state information.

  According to the said structure, the said state detection means monitors the battery part which supplies electric power to an own apparatus, and detects the charge remaining amount. The transmission control means transmits the remaining charge detected by the state detection means in the state information.

  Thereby, the content reproduction apparatus can acquire the remaining charge of the battery of the mobile communication terminal device as the state information related to the content distribution.

  For example, when the content playback device receives status information indicating an abnormality such as “a state where the remaining charge is low” from the mobile communication terminal device, the user of the content playback device can download the content of the mobile communication terminal device while downloading the content. It can be predicted that there is a possibility that the power will be cut off, and it is possible to prevent distribution troubles by not making a content distribution request to the mobile communication terminal device. As a result, user convenience is improved.

  Further, the mobile communication terminal device includes a lock setting unit that prohibits reading of the content stored in the own device, and the state detection unit is prohibited from reading the content by the lock setting unit of the own device. The transmission control means may transmit the state information including the presence or absence of the lock setting state detected by the state detection means.

  According to the above configuration, the lock setting unit prohibits the mobile communication terminal device from reading the content stored in the own device. Thus, when the mobile communication terminal device is in the lock setting state, the mobile communication terminal device cannot transmit content in response to a request from the content reproduction device.

  The state detection means detects whether or not the own device is in a lock setting state. The transmission control means transmits the state information including the presence / absence of the lock setting state detected by the state detection means.

  Thereby, the content reproduction apparatus can acquire the presence / absence of the lock setting state in the mobile communication terminal apparatus as the state information related to the content distribution.

  For example, when the content playback device receives status information indicating “lock set” from the mobile communication terminal device, the user of the content playback device cannot download the content even if the content request is made. It is possible to know, and it is possible to prevent distribution troubles by not making a content distribution request to the portable communication terminal device. As a result, user convenience is improved.

  Furthermore, the mobile communication terminal device includes a voice communication unit that performs a voice call with another communication terminal device via a mobile phone network, and the state detection unit monitors the voice communication unit to determine whether the own device is in a call. The state may be detected, and the transmission control unit may transmit the state information including the presence / absence of a state during a call detected by the state detection unit.

  According to the above configuration, the mobile communication terminal device further includes the voice communication unit that performs a voice call with another device via the mobile phone network.

  The state detection means monitors the voice communication unit to detect whether or not the own device is in a call state. The transmission control means transmits the status information including the presence / absence of a busy state detected by the status detection means.

  Thereby, the content reproduction apparatus can acquire information indicating whether or not the mobile communication terminal apparatus is in a call as state information related to content distribution.

  For example, when the content reproduction apparatus receives state information indicating “busy” from the mobile communication terminal apparatus, the user of the content reproduction apparatus can predict that the requested content transmission process will not be executed smoothly. This is because, for mobile communication terminal devices that have certain restrictions on hardware resources, it is a heavy load to execute a number of processes at the same time. Normally, voice communication processing is preferentially executed in a mobile communication terminal device. Because.

  Therefore, the user of the content reproduction device can prevent distribution troubles by not making a content distribution request to the portable communication terminal device during a call. As a result, user convenience is improved.

  Preferably, the transmission control means transmits the state information to the content reproduction apparatus using a DLNA protocol.

  In response to a status change such as a change in the content of a service provided by a DMS that is a content distribution device, in the DLNA protocol, a process for periodically requesting a status change from the DMP that is a content playback device to the DMS, Accordingly, a process is defined in which the DMS makes a status change presence / absence response to the DMP.

  Accordingly, since the transmission control means is included in the state change presence / absence response process defined by the DLNA protocol, it is not necessary to newly add a communication processing sequence between the content distribution apparatus and the content reproduction apparatus. In addition, it is possible to reduce the processing load of the content reproduction device and reduce the amount of communication data between the devices.

  In order to solve the above-described problem, the content playback device according to the present invention transmits the content requested by itself from the mobile communication terminal device connected to the local network and storing the content via the local network. In the content playback device to acquire and play back, status information acquisition means for acquiring status information indicating the content of the status of the mobile communication terminal device related to content distribution from the mobile communication terminal device via the local network, and It is characterized by comprising information display control means for displaying the status information acquired by the status information acquisition means on the display unit.

  According to the above configuration, the content reproduction device requests content from the mobile communication terminal device via the local network, and acquires the content from the mobile communication terminal device via the local network.

  On the other hand, the state information acquisition means of the content reproduction device acquires state information indicating the state of the state of the mobile communication terminal device related to content distribution from the mobile communication terminal device via the local network. And the said information display control means displays the status information which the said status information acquisition means acquired on the display part.

  Accordingly, the user of the content reproduction device can grasp the state of the mobile communication terminal device by looking at the state information displayed on the display unit. The acquired state of the mobile communication terminal device is a state related to the content distribution function of the mobile communication terminal device. Therefore, the user of the content reproduction device can determine whether or not it is a state that can be executed without problems when content is acquired from the mobile communication terminal device based on the acquired state information. .

  For example, the state information acquired by the content reproduction device from the mobile communication terminal device and displayed on the display unit is “a state where it is difficult for the mobile communication terminal device to transmit the content in a comfortable environment (such as transmission speed)”, Alternatively, if an abnormal state such as “a state where content cannot be delivered in the near future” is indicated, do not make a content delivery request to the mobile communication terminal device, and delivery trouble may occur. Can be prevented in advance. As a result, user convenience is improved.

  The state information may further include a radio wave intensity indicating the intensity of a radio signal received by the mobile communication terminal device via the local network.

  According to the above configuration, the radio wave intensity of the mobile communication terminal device included in the state information acquired by the state information acquisition unit is displayed on the display unit under the control of the information display control unit.

  Thereby, the user of the content reproduction apparatus can know the radio field intensity when the portable communication terminal apparatus is connected to the local network.

  For example, when the content playback device receives from the mobile communication terminal device and the state information displayed on the display unit indicates an abnormality such as “a state where the radio wave intensity is weak”, the user of the content playback device It can be predicted that it will take time to acquire content from the device, and it is possible to prevent distribution troubles by not making a content distribution request to the portable communication terminal device. As a result, user convenience is improved.

  The state information may further include a remaining charge of the battery unit of the mobile communication terminal device.

  According to the said structure, the charge remaining amount of the battery part of a portable communication terminal device contained in the status information which the said status information acquisition means acquired is displayed on the said display part by control of the said information display control means.

  As a result, the user of the content reproduction apparatus can know the remaining charge of the battery unit of the mobile communication terminal apparatus.

  For example, when the content playback device receives from the mobile communication terminal device and the status information displayed on the display unit indicates an abnormality such as “a state where the remaining charge is low”, the user of the content playback device downloads the content. It can be predicted that there is a possibility that the power of the mobile communication terminal device will be cut off, and it is possible to prevent distribution troubles by not making a content distribution request to the mobile communication terminal device. As a result, user convenience is improved.

  The state information may further include information indicating whether or not the mobile communication terminal device is in a lock setting state in which reading of content is prohibited.

  According to the above configuration, information indicating whether or not the mobile communication terminal device is locked is displayed on the display unit under the control of the information display control unit, which is included in the state information acquired by the state information acquisition unit. Is done.

  As a result, the user of the content reproduction device can know whether or not the mobile communication terminal device is locked (setting to prohibit reading of content).

  For example, when the content information received from the mobile communication terminal device and the status information displayed on the display unit indicates “lock setting status”, the user of the content playback device makes a request for content. It is possible to know that the content cannot be downloaded, and it is possible to prevent a distribution trouble by not making a content distribution request to the portable communication terminal device. As a result, user convenience is improved.

  The status information may further include information indicating whether or not the mobile communication terminal device is in a voice call with another communication terminal device via the mobile phone network.

  According to the above configuration, the information included in the status information acquired by the status information acquisition unit is displayed on the display unit under the control of the information display control unit. Is done.

  Thereby, the user of the content reproduction device can know whether or not the mobile communication terminal device is busy.

  For example, when the content playback device receives from the mobile communication terminal device and the status information displayed on the display unit indicates “busy”, the user of the content playback device executes the requested content transmission process smoothly. It can be predicted that the mobile communication terminal device will not be delivered, so that a content delivery request is not made to the mobile communication terminal device during a call, thereby preventing a delivery trouble. As a result, user convenience is improved.

  In order to solve the above-described problems, the content distribution system of the present invention includes the above-described portable communication terminal device and the above-described content reproduction device.

  In order to solve the above problems, the method for controlling a portable communication terminal device of the present invention communicates with a content reproduction device by connecting to a local network, and is stored in the own device in response to a request from the content reproduction device. A method for controlling a mobile communication terminal device for transmitting content to the content reproduction device via the local network, a state detection step for detecting a state of the mobile communication terminal device related to content distribution, and the state detection step Including a transmission step of transmitting state information indicating the state of the state detected in step (b) to the content reproduction apparatus via the local network.

  In order to solve the above-described problem, the content playback apparatus control method of the present invention sends the content requested by itself from the portable communication terminal device connected to the local network and storing the content to the local network. A method for controlling a content playback apparatus that acquires and plays back via the local network, and acquires status information indicating the state of the mobile communication terminal related to content distribution from the mobile communication terminal An acquisition step; and a display step of displaying the state information acquired in the acquisition step on a display unit of the content reproduction apparatus.

  As a result, the user of the content reproduction apparatus on the client side can grasp the state related to the content distribution of the mobile communication terminal apparatus on the server side, and the mobile communication terminal apparatus In a difficult environment (transmission speed, etc.) "or" a state where content may not be delivered in the near future " By not making a content distribution request, it is possible to prevent distribution troubles. As a result, user convenience is improved.

  The mobile communication terminal device and the content playback device may be realized by a computer. In this case, the mobile communication terminal device or the content playback device is operated on the computer by causing the computer to operate as each of the means. The control program for the portable communication terminal device, the control program for the content reproduction device, and the computer-readable recording medium on which the control program is realized are also included in the scope of the present invention.

  As described above, the mobile communication terminal device according to the present invention receives the state detection means for detecting the state of the own apparatus related to content distribution, and the state information indicating the contents of the state detected by the state detection means, as described above. Transmission control means for transmitting to the content reproduction apparatus via the unit.

  As described above, the content reproduction device according to the present invention acquires state information indicating the state of the state of the mobile communication terminal device related to content distribution from the mobile communication terminal device via the local network. It is characterized by comprising an acquisition means and an information display control means for displaying the status information acquired by the status information acquisition means on the display unit.

  As described above, the content distribution system according to the present invention includes the above-described portable communication terminal device and the above-described content reproduction device.

  As described above, the method for controlling a mobile communication terminal device according to the present invention includes a state detection step for detecting the state of the mobile communication terminal device related to content distribution, and the contents of the state detected in the state detection step. Including a transmission step of transmitting status information indicating the above to the content reproduction device via the local network.

  As described above, the method for controlling the content reproduction device according to the present invention acquires the state information indicating the state of the state of the mobile communication terminal device related to content distribution from the mobile communication terminal device via the local network. And a display step of displaying the state information acquired in the acquisition step on the display unit of the content reproduction apparatus.

  From the above, according to the present invention, since the user on the client device side can detect and display various states of the server device that is a mobile terminal, the specific server device cannot satisfactorily perform the subsequent content distribution operation. In such a case, since this information can be displayed on the client device and the user can be alerted, it is possible to prevent a content delivery failure and to improve the convenience.

  An embodiment of the present invention is described below with reference to the drawings. In the present embodiment, as an example, the content distribution system of the present invention is applied to a DLNA-compliant home network system constructed by a home LAN and various devices that can be connected to the home LAN by wire or wirelessly. explain. A case will be described in which the mobile communication terminal device of the present invention is applied to a mobile phone having a DMS function that distributes content to the various devices having the DMP function via the home LAN.

[Outline of home network system]
FIG. 2 is a diagram illustrating an overview of the home network system 300 according to the embodiment of the present invention. FIG. 3 is a block diagram showing a schematic configuration of DMP devices 101a to 101c having a DMP function and mobile phones 1a to 1d having a DMS function, which constitute a part of the home network system 300 shown in FIG.

  As shown in FIG. 2, a home LAN 201 is formed in the home A. The home LAN 201 includes a DMP device 101c, a home server 102, a hard disk (HD) recorder 103, a personal computer 104, and an access point 202. Wired LAN connection. Further, the home LAN 201 is connected to the DMP device 101a, the DMP device 101b, and the cellular phones 1a to 1d having the DMS function via the access point 202 via a wireless LAN.

  The cellular phones 1a to 1d are DMS devices including a DMS protocol processing unit 4 (FIG. 3) that performs protocol processing for exchanging messages with a device having a DMP function in accordance with the DLNA guidelines. In response to a request from a device such as the DMP devices 101a to 101c, the mobile phones 1a to 1d transmit the requested content to the requesting DMP device.

  In the present embodiment, the DMS device is a mobile phone, but the present invention is not limited to this. You may implement | achieve portable communication terminal devices, such as PDA and a notebook personal computer, as a DMS apparatus.

  The DMP devices 101a to 101c include a DMP protocol processing unit 21 (FIG. 3) that performs protocol processing for exchanging messages with a device having a DMS function in accordance with the DLNA guidelines. That is, the DMP devices 101a to 101c can request and acquire content (for example, digital content such as photographs, moving images, and music) from devices having the DMS function such as the mobile phones 1a to 1d. The DMP devices 101a to 101c reproduce the acquired content.

  Here, it is assumed that the DMP device 101a is a PDA, the DMP device 101b is a mobile phone, and the DMP device 101c is a television. However, what kind of device realizes the DMP device used as DMP is not limited to the above.

  The home network system 300 may further include the following devices.

  The home server 102, the HD recorder 103, and the personal computer 104 are DMS devices like the mobile phones 1a to 1d. Since the home server 102 (HD recorder 103, personal computer 104) is connected to the home LAN 201 by a wired LAN, the DMP device 101c that is also connected to the home LAN 201 can acquire content from the home server 102. . The DMP devices 101a and 101b can also acquire content from the home server 102 (HD recorder 103, personal computer 104) by connecting to the home LAN 201 via the access point 202.

  As shown in FIG. 3, in the present embodiment, the cellular phones 1 a to 1 d store device information about the device itself in the device information storage area 11 of the storage unit. The cellular phones 1a to 1d transmit their own device information to the DMP devices 101a to 101c in response to requests from the DMP devices 101a to 101c or in response to occurrence of a predetermined event.

  Although the content of the device information is not particularly limited, in the present embodiment, at least state information (abnormal state information) indicating the content distribution state (or abnormal state) of the own device is transmitted to the DMP devices 101a to 101c. To do.

[About abnormal status of DMS equipment]
Here, the abnormal state of the above-described DMS device will be described with reference to a specific example with reference to FIG.

  The abnormal state of the DMS device refers to a state in which it is difficult to transmit the content of the device itself to the DMP in a comfortable environment, or a state in which the content cannot be delivered in the near future. That is, it is an abnormal state related to content distribution.

  Specific examples of abnormal states of the mobile phones 1a to 1d include the following states.

  First, the mobile phones 1a to 1d are wireless communication terminal devices that connect to a communication network via an access point wirelessly and exchange information with the DMP devices 101a to 101c.

  Unlike home appliances such as the HD recorder 103 that is permanently installed in the home, the mobile phones 1a to 1d can be carried by a user and moved over a wide range. For this reason, the radio wave environment in which the cellular phones 1a to 1d are placed is not necessarily good, and the radio communication radio wave environment for accessing the home LAN 201 may deteriorate.

  When the radio wave intensity is weak, the content distribution request from the DMP devices 101a to 101c cannot be received normally, the content cannot be transmitted normally to the requesting DMP device, or even if it can be transmitted, transmission is very It may take a long time. Therefore, as an abnormal state, firstly, a state in which the radio communication radio wave intensity of the mobile phone is weak is mentioned (the mobile phone 1d in FIGS. 2 and 3).

  Next, the mobile phones 1a to 1d mainly have a function of making a call with another communication terminal device via the mobile phone network. A recent mobile phone is generally a multi-function mobile phone equipped with various functions in addition to a call function. In the mobile phone, the call function is a process with high priority. Therefore, when executing a call function, the mobile phone interrupts while another function is being executed, and puts another function with a high load into a standby state while the call function is being executed. These are contrivances that have been made in the past in order to execute various types of functions with limited hardware resources of a mobile phone.

  From the above, it is conceivable that the mobile phones 1a to 1d are in a call with another communication terminal device via the mobile phone network when receiving the content transmission request. In such a case, there is a possibility that the content cannot be normally distributed to the request source DMP transmission or the transmission takes a very long time due to the circumstances described above. Therefore, secondly, the abnormal state includes a state in which the mobile phone is in a call (mobile phone 1b).

  Next, the mobile phones 1a to 1d are devices driven by a battery. Therefore, when the remaining battery charge is low, there is a possibility that the content cannot be completely transmitted to the DMP device.

  Therefore, thirdly, the abnormal state includes a state where the remaining charge of the battery of the mobile phone is low (mobile phone 1a).

  Next, from the viewpoint of security, the mobile phones 1a to 1d are usually equipped with a function for the user to perform lock settings so that others cannot view the data in the mobile phone. The mobile phones 1a to 1d according to the present embodiment prohibit the browsing of the content stored in the mobile phone by performing a lock setting that prevents a person other than the owner from operating the mobile phone. Browsing lock is activated.

  In this way, when the user of the mobile phone 1a to 1d performs the lock setting on the mobile phone so that the content in the mobile phone is not distributed to the outside or viewed by others, the DMP device Even if content is requested from the mobile phone, the content cannot be acquired. Or even if it can be acquired, the content cannot be reproduced.

  Therefore, fourthly, an abnormal state includes a lock setting state of the mobile phone (mobile phone 1c).

  The specific example of the abnormal state described above is an example for explaining the operation of the mobile phone of the present invention and is not intended to limit the mobile phone (mobile communication terminal device) of the present invention. The cellular phones 1a to 1d of the present invention detect any state related to content transmission, such as a state that affects (particularly adversely affects) the operation of content transmission, or a state in which content transmission may fail. It is possible to notify the device. For example, even when the cellular phones 1a to 1d are executing functions that have a heavy load on hardware resources such as a moving image playback function, a camera shooting function, and a high pixel image processing function, the execution of the content transmission function is adversely affected. Since there is a possibility, a high load function execution state or the like may be detected as an abnormal state.

  Hereinafter, the mobile phone that detects the abnormal state of its own device and notifies the DMP device thereof will be described in more detail using the first to fourth specific examples described above.

[Configuration of DMS device (mobile phone)]
(Outline configuration)
FIG. 4 is a block diagram showing a main configuration of the cellular phones 1a to 1d. Hereinafter, the simple description of the mobile phone 1 refers to the mobile phones 1a to 1d.

  As shown in FIG. 4, the mobile phone 1 includes a wireless LAN module 2, a wireless LAN transceiver 3, a DMS protocol processing unit 4, a wireless LAN connection unit 6, a display unit 7, an input unit 8, a mobile phone network connection interface (I / F) 9, a control unit 10, a camera unit 13, an auxiliary storage unit 14, a main storage unit 18, and a battery unit 19.

  The wireless LAN module 2 performs various processes necessary for the mobile phone 1 to connect to the home LAN 201 and perform communication. Specifically, the wireless LAN module 2 includes a wireless LAN RF (Radio Frequency) unit and a signal processing unit, and performs wireless modulation / demodulation, baseband processing, and the like. The wireless LAN transmission / reception unit 3 controls data transmission / reception between the mobile phone 1 and the home LAN 201.

  The DMS protocol processing unit 4 performs various processes necessary for the mobile phone 1 to function as a DMS device. Specifically, the DMS protocol processing unit 4 performs protocol processing for exchanging messages with a device having a DMP function in accordance with the DLNA guidelines.

  Each block described above is controlled by the communication control unit 30 (FIG. 1) of the control unit 10, and transmits the device information and content of the own device to the DMP device.

  The wireless LAN connection unit 6 performs control for disconnecting the connection to the home LAN 201 and the connection to the home LAN 201. Specifically, the wireless LAN connection unit 6 causes the wireless LAN module 2 to execute connection to the designated wireless LAN network (home LAN 201) by designating a connection destination and transmitting a connection request. Further, the connection to the wireless LAN network is disconnected by transmitting a connection disconnection request to the wireless LAN module 2.

  The display unit 7 is a device that displays still images, moving images, text data, and the like in accordance with instructions from the control unit 10. As the display unit 7, for example, an LC (liquid Crystal) display device, an EL (Electro Luminescence) display device, or the like can be suitably applied.

  The input unit 8 is for operating the mobile phone 1, and includes a selection key for selecting an item displayed on the display unit 7, a determination key for determining the selected item, and a key for inputting numbers and characters. It is composed of input key groups including. The input unit 8 sends an input to the input key to the control unit 10 as an input signal, and the control unit 10 that receives the input signal performs an operation according to the input signal. Thereby, the mobile phone 1 performs an operation according to the user's input operation. In the present embodiment, a lock setting for prohibiting the operation of the mobile phone 1 can be performed by a user making a predetermined input to the input unit 8. Details of the lock setting will be described later.

  The mobile phone network connection I / F 9 is an interface through which the mobile phone 1 connects to the mobile phone network to perform communication, and includes a mobile phone line RF unit and a signal processing unit. The cellular phone 1 can perform voice calls and packet communications via the cellular phone network connection I / F 9. The mobile phone network that is the connection destination of the mobile phone network connection I / F 9 is not particularly limited, and the configuration of the mobile phone network connection I / F 9 can be changed as appropriate in accordance with the mobile phone network of the connection destination. As the mobile phone network connection I / F 9, for example, those connected to the mobile phone network by a W-CDMA (Wideband Code Division Multiple Access) method or a CDMA2000 (Code Division Multiple Access) method can be used.

  The camera unit 13 is a device for taking a picture, and generates image data based on an optical signal taken into a light receiving element via a lens (not shown). Image data generated by the camera is recorded in the auxiliary storage unit 14 as necessary as still image data or moving image data.

  The auxiliary storage unit 14 is a recording device that records various data used by the mobile phone 1. As the auxiliary storage unit, for example, a known recording device such as a flash ROM (Read Only Memory) can be appropriately used. As shown in FIG. 4, the auxiliary storage unit 14 includes a device information storage area 11, a wireless LAN connection profile 15, a content storage area 16, and a program storage area 17.

  In the device information storage area 11, device information related to the mobile phone 1 is stored. At least state information indicating the state (abnormal state) related to content distribution of the mobile phone 1 is stored. In the present embodiment, specifically, as illustrated in FIG. 3, the device information includes three pieces of information “name”, “service”, and “status information”, but is not limited thereto.

  “Name” is identification information assigned so that the mobile phone 1 can be uniquely identified in the home network system 300. “Service” is information indicating the type of service provided by the mobile phone 1. For example, as shown in FIG. 3, when “Service” is set to “Photo Server”, the mobile phone 1 a This means that the DMS device has a function of publishing.

  As described above, the “status information” is information indicating the content of the status related to the content distribution of the mobile phone 1. In addition, although the state information shown in FIG. 3 expressed the content of the state in words for understanding of the invention, it is not limited to this. Numerical information such as a physical quantity measured for the mobile phone 1 or a determination level based on a threshold value may be stored.

  The wireless LAN connection profile 15 is data indicating a network that is a wireless LAN connection destination candidate of the mobile phone 1, that is, a connection candidate network, and various setting data (connection setting information) used when connecting to each connection candidate network. That is, it includes a connection profile. In other words, the mobile phone 1 targets only the network indicated in the wireless LAN connection profile 15 for wireless LAN connection, and uses the connection profile included in the wireless LAN connection profile 15 to connect to the connection candidate network. ing. In this embodiment, for example, the home LAN 201 constituting the home network system 300 shown in FIG. 2 is profiled as a connection candidate network.

  The content storage area 16 stores data to be disclosed by the DMS function such as a still image file, a moving image file, and a music file. The user of the mobile phone 1 can publish the image data by using the DMS function, for example, by storing the image data captured by the camera unit 13 in the content storage area 16.

  The program storage area 17 stores programs necessary for the mobile phone 1 to operate. That is, in the mobile phone 1, the control unit 10 reads out the program stored in the program storage area 17 to the main storage unit 18 and executes it, thereby realizing the above functions.

  The main storage unit 18 functions as a working memory when information processing by the control unit 10 is performed. For example, a RAM (Random Access Memory) can be applied as the main storage unit 18.

  The battery unit 19 supplies appropriate power to various components in the mobile phone 1, and includes, for example, a rechargeable secondary battery such as a lithium ion battery or a power supply circuit.

(Detailed configuration)
FIG. 1 is a block diagram showing a more detailed configuration related to the abnormal state detection function in the main part of the cellular phones 1a to 1d. 1 correspond to the reference numerals given to the respective constituent elements in FIGS. 2 to 4, and the same reference numerals indicate the same constituent elements. Therefore, the description about the component already demonstrated by each above-mentioned embodiment is not repeated.

  The control unit 10 includes a communication control unit 30, a device information generation unit 31, a state detection unit 32, and a lock setting unit 33.

  The communication control unit 30 controls each unit of the wireless LAN module 2, the wireless LAN transmission / reception unit 3, and the DMS protocol processing unit 4 to receive a request from the DMP device or store device information stored in the device information storage area 11. In addition, the content stored in the content storage area 16 is transmitted. The communication control unit 30 controls execution of the DMS function conforming to DLNA in the mobile phone 1 by controlling the above-described units.

  The device information generation unit 31 is based on various types of information stored in the device information storage area 11, and refers to the DMP devices 101a to 101c (hereinafter, when referring to the DMP device 101, all of the DMP devices 101a to 101c are indicated). The device information to be transmitted to is generated.

  The “status information” included in the device information in the device information storage area 11 stores the results detected and measured by each unit of the status detection unit 32. The device information generation unit 31 processes the detection result and generates state information to be transmitted to the DMP device 101.

  The device information (status information) generated by the device information generation unit 31 is transmitted to the DMP device 101 via the communication control unit 30.

  The state detection unit 32 monitors the operation and physical quantity of each unit of the mobile phone 1 and detects the state of the mobile phone 1 related to content transmission.

  The lock setting unit 33 is configured to set or release the lock of the mobile phone 1 in accordance with a lock setting / setting release instruction signal input via the input unit 8 by a user operation.

  In the present embodiment, when a lock setting instruction signal is input, the lock setting unit 33 locks the content stored in the content storage area 16 so that it is not distributed to the outside, and further releases the lock setting. The key operation of the input unit 8 is invalidated so as not to accept anything other than a predetermined input.

  As a result, it is possible to prevent browsing of the content of the own device by a person other than the user of the mobile phone 1, so that the security of the content can be maintained.

  More specifically, in this embodiment, the state detection unit 32 includes a wireless LAN communication radio wave intensity detection unit (hereinafter referred to as radio wave intensity detection unit) 40, a mobile phone network communication presence detection unit (hereinafter referred to as presence detection unit) 41, A remaining charge detection unit 42 and a lock setting detection unit 43 are included.

  The radio wave intensity detection unit 40 monitors the wireless LAN module 2 and acquires the state of the network to which the wireless LAN module 2 is connected. Specifically, the radio wave intensity detection unit 40 acquires a radio LAN communication state change event such as the intensity (RSSI) of a radio signal received via the home LAN 201, connection, or disconnection.

  The presence detection unit 41 monitors the cellular phone network connection I / F 9 and detects the communication state of the cellular phone 1 performed via the cellular phone network, that is, presence. The presence of the mobile phone 1 that can be detected by the presence detection unit 41 is not particularly limited, and examples thereof include “calling”, “holding”, “out of service area (in mobile phone network)”, and the like.

  The remaining charge detection unit 42 monitors the voltage value of the battery unit 19 and detects the remaining charge of the battery unit 19.

  The lock setting detection unit 43 monitors the lock setting unit 33 and detects whether or not the mobile phone 1 is in the lock setting state.

  The detection results of the above-described units are stored in the “status information” field of the device information in the device information storage area 11.

  More specifically, the device information generation unit 31 sets the radio field intensity detected by the radio field intensity detection unit 40 based on a plurality of predetermined threshold values (not shown) as “level 4: very strong”, It is divided into four levels of “level 3: strong”, “level 2: weak”, and “level 1: out of service area”, and state information relating to radio wave intensity is generated. Note that “out of service area” in this case means a state in which the radio signal intensity is completely zero, or a very weak state that is not zero but does not reach the level 2 intensity. , It is possible to transmit the status information “level 1: out of range” to the DMP device 101.

  In addition, the device information generation unit 31 sets the remaining charge detected by the remaining charge detection unit 42 based on a plurality of predetermined thresholds (not shown), “level 3: many”, “level 2: It is divided into three levels, “medium” and “level 1: low”, and status information relating to the remaining charge is generated.

  In the present embodiment, the device information generation unit 31 performs binarization of “1: busy” and “0: standby (= normal state)” based on the presence detected by the presence detection unit 41, thereby relating to presence. Generate state information.

  Further, the device information generation unit 31 relates to lock setting by binarization of “1: lock setting” and “0: lock release (= normal state)” based on the detection result of the lock setting detection unit 43. Generate state information.

  The state information is not limited to information in a text format. For example, the state information may be realized in a format such as an icon / graphic for displaying each level as an icon.

  The device information may be supplied to the DMP device 101 separately as various information of “name”, “service”, and “status information”, or may be supplied collectively as device information.

  The “status information” may include a plurality of types of contents for one mobile phone 1. For example, when the mobile phone 1 is in a state where the radio wave intensity is “level 2: weak” and the remaining charge level is “level 1: low”, the mobile phone 1 sets the “radio wave intensity” which is the status information of its own device. : Weak ”and“ remaining charge: low ”can be supplied to the DMP device 101.

  Also, the timing of the device information (status information) transmission process is not particularly limited. For example, it may be executed at a predetermined time, may be executed at a predetermined time interval, or may be executed in response to a request from the DMP device 101. Alternatively, it may be executed when a change occurs in the state of the mobile phone 1.

  Furthermore, the device information generation unit 31 determines the severity of the abnormal state of the mobile phone 1 by comparing the detection result of the state detection unit 32 with a threshold, and determines whether or not an abnormal state warning is necessary / unnecessary. Good. This makes it possible to notify the DMP device 101 of the status information of the mobile phone 1 only when there is a problem (or a high possibility of a problem) in executing content transmission, and wasteful transmission / reception processing is performed. Can be suppressed.

  In addition, each part shown as the said functional block reads and memorize | stores the program memorize | stored in memory | storage devices, such as ROM (read only memory) not shown in CPU (central processing unit), RAM (random access memory) etc. This can be achieved. That is, each member (communication control unit 30, state detection unit 32, etc.) of the control unit 10 executes a program stored in the storage device and controls peripheral circuits such as an input / output circuit (not shown). It is a functional block realized by this.

[Configuration of DMP device]
FIG. 5 is a block diagram showing a main configuration of the DMP device 101.

  As shown in FIG. 5, the DMP device 101 includes at least a control unit 20, a DMP protocol processing unit 21, an input unit 22, a display unit 23, and an auxiliary storage unit 24.

  The DMP protocol processing unit 21 performs protocol processing for exchanging messages with a device having a DMS function in accordance with the DLNA guidelines.

  The input unit 22 is an instruction input device for a user to instruct execution of various functions of the DMP device 101. The input unit 22 is realized by various input devices according to the type of device of the DMP device 101. For example, if the DMP device 101 is a home appliance such as a television or an HD recorder, the input unit 22 is realized as a remote controller. Alternatively, if the DMP device 101 is a personal computer, the input unit 22 is realized by a keyboard, a mouse, or the like. If the DMP device 101 is a mobile communication terminal device like the mobile phone 1, it is composed of a group of input keys such as a selection key, a decision key, and a numeric key, like the input unit 8.

  The user can use the input unit 22 to instruct the reproduction of content stored in the DMP device 101 or to instruct the mobile phone 1 to execute processing for requesting content or device information. .

  The display unit 23 is a device that displays still images, moving images, text data, and the like in accordance with instructions from the control unit 20. Specifically, the playback content can be displayed, or information on the DMS device connected to the home LAN 201 can be displayed.

  The auxiliary storage unit 24 is a recording device that records various data used by the DMP device 101. As the auxiliary storage unit, for example, a known recording device such as a flash ROM (Read Only Memory) can be appropriately used. As shown in FIG. 5, the auxiliary storage unit 24 includes at least a content storage area 25, a device information storage area 26, and a program storage area (not shown).

  The content storage area 25 stores digital contents such as music files, image files, and video files obtained from DMS devices such as the mobile phone 1 connected to the home LAN 201, the HD recorder 103, and the personal computer 104.

  In the device information storage area 26, device information of each of the DMS devices connected to the home LAN 201 is stored.

  FIG. 6 is a diagram illustrating an example of device information stored in the device information storage area 26. As shown in FIG. 6, device information, that is, three pieces of information “name”, “service”, and “status information” are stored in association with each DMS device of the home LAN 201. The meaning of each information is as described above.

  In the present embodiment, the “status information” is acquired only from the mobile communication terminal device (mobile phone 1). However, as long as the status detection unit 32 is provided, various devices (wired LAN) ( The status information transmitted by the HD recorder 103 or the personal computer 104) may be acquired. In the present embodiment, the “status information” field of the device information storage area 26 stores the status information generated by the device information generation unit 31 of the mobile phone 1 based on the detection result.

  As a result, the DMP device 101 can manage information of each DMS device connected to the home LAN 201.

  In the example illustrated in FIG. 6, only one type of “status information” is stored, but the present invention is not limited to this. For example, when two state information “remaining charge: low” and “busy” are supplied for the mobile phone 1a, the two state information is stored in the device information storage area 26 in association with the mobile phone 1a. Can be kept.

  The program storage area stores a program necessary for the operation of the DMP device 101. That is, in the DMP device 101, the control unit 20 reads the program stored in the program storage area to the main storage unit (not shown) and executes it, thereby realizing the above functions. Yes.

  Although not shown here, communication means such as a wireless (wired) LAN module and a transmission / reception unit are appropriately provided according to the connection status of the DMP device 101 to the home LAN 201, and under the control of the communication control unit 50. It is possible to exchange messages with a device having a DMS function in accordance with the DLNA guidelines.

  The control unit 20 performs overall control of each unit of the DMP device 101. The control unit 20 includes at least a communication control unit 50, a request processing unit 51, a content reproduction unit 52, and an information display control unit 53.

  The communication control unit 50 controls each unit of the communication means to transmit a request message for content and device information to the DMS device and receive content and device information from the DMS device. The communication control unit 50 controls the execution of the DMP function based on the DLNA in the DMP device 101 by controlling the communication means.

  The request processing unit 51 generates a content request message for requesting the content specified by the user from the DMS device having the content. Also, a device information request message for requesting device information of the DMS device connected to the home LAN 201 is generated.

  The device information request process may be executed in response to a user instruction via the input unit 22, or may be automatically executed at a predetermined time or a fixed time interval. Alternatively, the device information may be periodically distributed from the DMS device without the request processing unit 51.

  The DMS device to which the request message is transmitted may be designated by the user each time or in advance, or may be requested to all the DMS devices connected to the home LAN 201. Good.

  The content reproduction unit 52 reproduces and outputs the content stored in the content storage area 25. For example, when the content is an image file, the content reproduction unit 52 outputs the read image file to the display unit 23. When the content is a music file, the read music file is output to a speaker unit (not shown).

  The information display control unit 53 reads out device information for each device stored in the device information storage area 26 and outputs it to the display unit 23. Specifically, the information display control unit 53 determines a display layout for each piece of device information based on the read device information, and outputs device information display data to the display unit 23. An example of the device information display screen on the display unit 23 will be described later.

[Processing flow of home network system]
FIG. 7 is a sequence diagram showing the flow of each process of the mobile phone 1 and the DMP device 101 in the home network system 300 shown in FIG. The sequence shown in the figure conforms to the DLNA guidelines.

  The DMP device 101 first performs device discovery processing for searching for nearby DMS devices after startup, and the DMS device connected to the home LAN 201 (here, the mobile phone 1) transmits a response to the inquiry. (Steps S111 and S112). Next, device information of the mobile phone 1 (here, “name” and “service” information is requested) for the discovered mobile phone 1, and the mobile phone 1 responds to an information request from the DMP device 101. The requested information (“name” and “service”) is transmitted (steps S121, S122, S123, S124).

  Next, the DMP device 101 performs content list request processing on the mobile phone 1. In response to this, the mobile phone 1 transmits the content list to the requesting DMP device 101 (steps S131, S132, S133, S134).

  As described above, the DMP device 101 acquires a content list from the mobile phone 1. As a result, the user of the DMP device 101 can grasp the content that can be acquired from the mobile phone 1 and select the desired content. When the content is designated by the user, the DMP device 101 requests the mobile phone 1 to transmit the selected content. In response to the request, the cellular phone 1 reads the content selected by the DMP device 101 from the content storage area 16 of the device itself and transmits it to the requesting DMP device 101 (steps S141 and S142).

  In the present embodiment, the DMP device 101 periodically requests each DMS device (mobile phone 1) state information. In response to the request, the mobile phone 1 executes a state information transmission process, and transmits its own state information to the requesting DMP device 101 (steps S151 and S152).

  In steps S151 and S152, Eventing (state change request / response sequence) defined in the DLNA guidelines is applied in order to cope with a change in state such as a change in DMS provided service content. As a result, it is not necessary to newly add a communication processing sequence between the DMS and the DMP in order to realize the technology of the present invention. As a result, the processing load of the DMS and the DMP is reduced, and further communication data between the DMS and the DMP devices. It is possible to reduce the amount.

  The DMP device 101 acquires the state information of the mobile phone 1 and displays the acquired state information in association with each device. As a result, the user of the DMP apparatus 101 can grasp which DMS apparatus is in what state.

[Status information transmission processing flow]
FIG. 8 is a flowchart showing the flow of status information transmission processing of the mobile phone 1 shown in FIG.

  When the mobile phone 1 receives the status information request from the DMP device 101 in S151 of FIG. 7 (YES in S201), the status detection unit 32 detects the status of the mobile phone 1 at that time. More specifically, for example, the radio wave intensity detection unit 40 detects the radio wave radio field intensity, the presence detection unit 41 detects whether the mobile phone 1 is busy, and the remaining charge detection unit 42 The remaining charge of the battery unit 19 is detected, and the lock setting detection unit 43 detects whether or not the lock setting is being performed (S202). The result of the state detection unit 32 is stored in the device information storage area 11 (S203).

  Subsequently, the device information generation unit 31 generates state information indicating the state of the device itself based on the detection result stored in the device information storage area 11, and transmits the state information to the request source DMP device 101 (S204).

  The trigger for transmitting state information to the DMP device 101 by the mobile phone 1 may be when a request from the DMP device 101 is received or when a predetermined event occurs. Specifically, the state information is transmitted to the DMP device 101 when the radio wave intensity or the remaining charge level changes so much that the level determined by the device information generation unit 31 changes, or when a predetermined time comes. You may make it do.

  As described above, the DMP device 101 that has received the device information (“name”, “service”, and “status information”) from the mobile phone 1 displays the device information of the mobile phone 1 connected to the home LAN 201 on the display unit 23. Can be displayed. The state information indicates details of a state relating to content distribution of the mobile phone 1.

  As a result, the user of the DMP device 101 grasps the DMS device connected to the home LAN 201 and what service each device provides, and knows what state each device is in. be able to. Since the state of each device is state information regarding content distribution in particular, the user can check the state information and predict whether the content can be downloaded from the device in a comfortable environment.

  Therefore, it is possible to prevent the content request from being made to the DMS device where it is difficult to download the content (a problem is likely to occur). As a result, the convenience of the content distribution system is improved.

  Next, a display example of device information on the display unit 23 of the DMP device 101 will be described below.

[Example of status information display]
FIG. 9 is a diagram illustrating an example of a display screen when device information of each DMS device connected to the home LAN 201 is displayed on the display unit 23 of the DMP device 101 in the home network system 300.

  In the example shown in FIG. 9, the layout is such that the device information 230 (af) of up to six DMS devices can be displayed on the screen of the display unit 23. The device information for the six devices shown in FIG. 9 is information generated by the information display control unit 53 based on the device information shown in FIG.

  The device information 230a indicates that the mobile phone 1a has a still image content server function and the remaining charge amount is low, and the device information 230b indicates that the mobile phone 1b has a video content server function and The device information 230c indicates that the mobile phone 1c has a moving image content server function and is in the lock setting state, and the device information 230d indicates that the mobile phone 1d However, it has a music content server function and the wireless LAN radio wave intensity is weak. The device information 230e indicates device information of the HD recorder 103, and the device information 230f indicates device information of the personal computer 104.

  In the device information 230, first, an icon 231 of each device (this icon image may be stored in advance in the DMP device 101 in association with the device identification information) is displayed. Of the device information, “name” information is displayed in a text format in a “server name” item 232, and “service” information is displayed in a “service” item 233.

  Finally, the “status information” is displayed in the “attention” item 234.

  In the example illustrated in FIG. 9, the information display control unit 53 determines the layout so as to be displayed in the “Caution” item in order to warn of an abnormal state related to the content distribution of the mobile phones 1 a to 1 d.

  In addition, when the normal state information is also notified from the mobile phones 1a to 1d, the following configuration is conceivable. In other words, the information display control unit 53 determines the layout so that the remaining amount of charge and the radio wave intensity are displayed in the “CAUTION” item only when a predetermined level is not reached based on a predetermined threshold. May be. Even if there are a plurality of types of abnormal states, the plurality of pieces of information can be displayed in the item “CAUTION”.

  The user of the DMP device 101 grasps the states of the mobile phones 1a to 1d by referring to the state information (“Caution” item 234) of each DMS device on the display unit 23 of the DMP device 101 owned by the user. Is possible.

  Alternatively, when the device information generation unit 31 of the mobile phone 1 transmits the detection result of the state detection unit 32 as it is as device information, the information display control unit 53 displays the detection result based on a predetermined threshold. The status information may be displayed for each level by dividing into a plurality of levels.

  As described above, in the home network system 300 according to the present embodiment, the DMP device 101 in the DLNA can acquire and display various states of the mobile phones 1a to 1d that are mobile communication terminal devices, and thus the mobile phones 1a to 1d. However, if there is a possibility that a problem may occur in the content distribution, the DMP device 101 can present the state information indicating the contents of the state to the user and call the user attention. It becomes possible to prevent a failure, and convenience for the user of the DMP device 101 is improved.

  In this embodiment, an example in which a mobile phone is used as a DMS device has been described. However, various mobile communication terminal devices such as a PDA and a notebook personal computer may be applied instead of the mobile phone.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims. That is, embodiments obtained by combining technical means appropriately modified within the scope of the claims are also included in the technical scope of the present invention.

  Finally, each block of the cellular phones 1a to 1d and the DMP device 101, in particular, the device information generation unit 31, the state detection unit 32, the request processing unit 51, the information display control unit 53, and the like are configured by hardware logic. Alternatively, it may be realized by software using a CPU as follows.

  That is, the cellular phone 1 (DMP device 101) includes a central processing unit (CPU) that executes instructions of a control program for realizing each function, a ROM (read only memory) that stores the program, and a RAM ( random access memory), a storage device (recording medium) such as a memory for storing the program and various data. The object of the present invention is to record the program code (execution format program, intermediate code program, source program) of the control program of the mobile phone 1 (DMP device 101), which is software that realizes the above-described functions, in a computer-readable manner This can also be achieved by supplying the recorded medium to the cellular phone 1 (DMP device 101) and reading out 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 an optical disk such as a CD-ROM / MO / MD / DVD / CD-R. Card system such as IC card, IC card (including memory card) / optical card, or semiconductor memory system such as mask ROM / EPROM / EEPROM / flash ROM.

  Further, the mobile phone 1 (DMP device 101) 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 portable communication terminal device of the present invention can be suitably used as a content distribution device that provides content to a content playback device that can be connected to the local network in a local network.

It is a block diagram which shows the further detailed structure regarding the abnormal condition detection function in the principal part of the mobile telephone which has a DMS function of this embodiment. It is a figure explaining the outline | summary of the home network system in this embodiment. It is a block diagram which shows schematic structure of the DMP apparatus which has a DMP function, and the mobile telephone which has a DMS function which comprise a part of said home network system. It is a block diagram which shows the principal part structure of the mobile telephone which has a DMS function in embodiment of this invention. It is a block diagram which shows the principal part structure of the DMP apparatus which has a DMP function in embodiment of this invention. It is a figure which shows an example of the apparatus information stored in the apparatus information storage area of a DMP apparatus. It is a sequence diagram which shows the flow of each process of the mobile phone which has a DMS function, and the DMP apparatus which has a DMP function in the said home network system. It is a flowchart which shows the flow of the status information transmission process of the mobile telephone which has a DMS function. It is a figure which shows the example of a display screen when apparatus information is displayed on the display part of a DMP apparatus.

Explanation of symbols

1a Mobile phone (mobile communication terminal device)
1b Mobile phone (mobile communication terminal device)
1c Mobile phone (mobile communication terminal device)
1d Mobile phone (mobile communication terminal)
2 Wireless LAN module (communication unit)
3 Wireless LAN transceiver unit (communication unit)
4 DMS protocol processing unit (communication unit)
6 Wireless LAN connection unit 7 Display unit 8 Input unit 9 Mobile phone network connection interface (voice communication unit)
DESCRIPTION OF SYMBOLS 10 Control part 11 Device information storage area 13 Camera part 14 Auxiliary storage part 15 Wireless LAN connection profile 16 Content storage area 17 Program storage area 18 Main storage part 19 Battery part 20 Control part 21 DMP protocol processing part 22 Input part 23 Display part 24 Auxiliary storage unit 25 Content storage area 26 Device information storage area 30 Communication control unit (transmission control means)
31 Device information generation unit (transmission control means)
32 State detection unit (state detection means)
33 Lock setting section (lock setting means)
40 Wireless LAN communication radio wave intensity detection unit (state detection means)
41 Mobile phone network communication presence detection unit (state detection means)
42 Remaining charge detection unit (state detection means)
43 Lock setting detector (state detection means)
50 Communication control unit (status information acquisition means)
51 Request Processing Unit 52 Content Playback Unit 53 Information Display Control Unit (Information Display Control Unit)
101a DMP device (content playback device)
101b DMP device (content playback device)
101c DMP device (content playback device)
102 Home Server 103 Hard Disk Recorder 104 Personal Computer 201 Home LAN (Local Network)
202 Access point 230 Device information 300 Home network system (content distribution system)

Claims (16)

A mobile unit that includes a communication unit that communicates with a content reproduction device by connecting to a local network, and transmits content stored in the device to the content reproduction device via the local network in response to a request from the content reproduction device In a communication terminal device,
State detection means for detecting the state of the device related to content distribution;
A portable communication terminal device comprising: transmission control means for transmitting state information indicating the contents of the state detected by the state detection means to the content reproduction device via the communication unit. The communication unit is a wireless communication unit that wirelessly connects to the local network and communicates with the content reproduction device,
The state detection means monitors the wireless communication unit to detect the intensity of a radio signal received via the local network,
2. The mobile communication terminal apparatus according to claim 1, wherein the transmission control means transmits the radio wave intensity detected by the status detection means by including the status information in the status information. The state detection means detects the remaining charge of the battery unit of the own device,
The mobile communication terminal apparatus according to claim 1, wherein the transmission control unit transmits the remaining charge detected by the state detection unit in the state information. Provided with lock setting means for prohibiting reading of the content stored in the own device,
The state detection unit detects a lock setting state of the device, in which reading of the content is prohibited by the lock setting unit,
4. The mobile communication terminal device according to claim 1, wherein the transmission control unit transmits the state information including the presence / absence of the lock setting state detected by the state detection unit. 5. . Provided with a voice communication unit for voice communication with other communication terminal devices via a mobile phone network,
The state detection means monitors the voice communication unit to detect a state during a call of the own device,
5. The mobile communication terminal according to claim 1, wherein the transmission control unit transmits the state information including the presence / absence of a busy state detected by the state detection unit. 6. apparatus.   6. The portable communication terminal apparatus according to claim 1, wherein the transmission control unit transmits the state information to the content reproduction apparatus using a DLNA protocol. In a content playback apparatus that acquires and plays back the content requested by the mobile device from the mobile communication terminal device that is connected to the local network and stores the content via the local network,
State information acquisition means for acquiring state information indicating the state of the state of the mobile communication terminal device related to content distribution from the mobile communication terminal device via the local network;
An information display control means for displaying status information acquired by the status information acquisition means on a display unit. The above status information includes
8. The content reproduction apparatus according to claim 7, wherein the portable communication terminal device includes a radio wave intensity indicating an intensity of a radio wave signal received via the local network. The above status information includes
9. The content reproduction apparatus according to claim 7, wherein the remaining charge amount of the battery unit of the mobile communication terminal apparatus is included. The above status information includes
The content according to any one of claims 7 to 9, wherein the mobile communication terminal device includes information indicating whether or not the mobile communication terminal device is in a lock setting state in which reading of the content is prohibited. Playback device. The above status information includes
11. The information according to any one of claims 7 to 10, wherein the mobile communication terminal device includes information indicating whether or not the mobile communication terminal device is in a voice call state with another communication terminal device via a mobile phone network. 2. The content reproduction apparatus according to claim 1. A portable communication terminal device according to claim 1;
A content distribution system comprising the content reproduction device according to claim 7. A mobile communication terminal device connected to a local network to communicate with a content reproduction device, and in response to a request from the content reproduction device, transmits content stored in the device to the content reproduction device via the local network. A control method,
A state detection step of detecting a state of the mobile communication terminal device related to content distribution;
A control method for a mobile communication terminal device, comprising: a transmission step of transmitting status information indicating the content of the status detected in the status detection step to the content reproduction device via the local network. A method for controlling a content playback apparatus that acquires and plays back a content requested by itself from a portable communication terminal device connected to the local network and stores the content via the local network,
An acquisition step of acquiring state information indicating the content of the state of the mobile communication terminal device related to content distribution from the mobile communication terminal device via the local network;
And a display step of displaying the state information acquired in the acquisition step on a display unit of the content playback device.   Control for causing a computer to function as each means of the portable communication terminal device according to any one of claims 1 to 6 or the content reproduction device according to any one of claims 7 to 11. program.   A computer-readable recording medium on which the control program according to claim 15 is recorded.

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