JP2004208330A - Broadcast program storing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide broadcast storing and viewing apparatus which can automatically select a plurality of types of multiple video equipment in response to a request from a user. <P>SOLUTION: The broadcast storing and viewing apparatus is provided with a network, a network management apparatus for managing the network and a plurality of types of video devices connected to the network, wherein each of the plurality of types of video devices sends status thereof to the network, and the network management apparatus stores the states. Each of the plurality of types of video devices inquires the states of the other video devices to the network management apparatus and then determines the video device to be a next communication partner based upon the states of the other video devices obtained from the network management apparatus. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

The present invention relates to a broadcast storage and viewing device.

FIG. 11 shows a conventional method for storing and viewing broadcasts. Conventionally, to store a broadcast program, a signal received by a radio wave by an antenna 101 or the like is demodulated by a receiving device 104 such as a video deck 102 and input to a storage device 105 to store the broadcast program. In order to view the stored broadcast program, the user operates the VCR 102 at the storage destination and inputs the output to a viewing device 103 such as a TV via a video cable or the like for display.

  In the conventional broadcast storage and viewing of the stored broadcast, it is necessary to exchange a video cassette or the like as a broadcast storage medium as needed. Further, when a plurality of storage devices are provided, there is a problem that wiring between the storage devices and the viewing device becomes complicated. Furthermore, even if there are a plurality of storage devices, there is a problem that a user must determine a storage device for recording a broadcast program and a storage device for reproducing a broadcast program.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a broadcast storage and viewing device that automatically uses a plurality of types and a plurality of video devices in response to a user's request.

A broadcast storage and viewing device according to the present invention includes a network, a network management device that manages the network, and a plurality of types of video devices connected to the network, wherein each of the plurality of types of video devices has its own status. Sending to the network, the network management device stores the status, and each of the plurality of types of video devices inquires the status of the other video device to the network management device, and then obtains the status from the network management device. A video device to communicate next is determined based on the state of the other video device.

  Also, the broadcast storage and viewing device according to the present invention includes a network and a plurality of types of video devices connected to the network, and each of the plurality of types of video devices changes the status of another video device to the other video device through the network. After querying the video device, a video device to communicate with next is determined based on the state of the other video device obtained from the other video device.

  Furthermore, a broadcast storage and viewing device according to the present invention is characterized in that, in the above broadcast storage and viewing device, there are a plurality of video devices of the same type connected to the network.

A network management device according to the present invention is connected to a network to which a plurality of types of video devices are connected, and means for storing the status of the video device when the status of the video device is transmitted from the video device to the network,
Means for sending the status when the video device inquires about the status.

Further, a network management apparatus according to the present invention is characterized in that, in the broadcast storage apparatus described above, there are a plurality of video apparatuses of the same type connected to the network.

A video device according to the present invention is connected to a network in which a network management device that manages a network and a plurality of types of video devices are connected, means for transmitting its own status to the network, and the status of another video device. Means for inquiring a network management device and then determining a device with which to communicate next based on the status of the other video device obtained from the network management device.

Further, the video device according to the present invention is connected to a network to which a plurality of types of video devices are connected, and means for transmitting its own status to the network,
Means for querying the status of the other video device to the other video device, and then determining a device to communicate next based on the status of the other video device obtained from the other video device. And

  Furthermore, a video device according to the present invention is characterized in that, in the video device described above, there are a plurality of video devices of the same type connected to the network.

Furthermore, the video device according to the present invention is connected to a network to which a plurality of video devices are connected, and includes a source node ID, a source subnode ID, a destination node ID, a destination subnode ID, a request number, a message ID, and a message length. Means for transmitting and receiving a message having a protocol header and a message body.

  Furthermore, a video device according to the present invention is characterized in that in the above-mentioned video equipment, the message further has additional information, and the protocol header further includes an additional information length.

  Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a common interface message.

  Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a component management interface message.

Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a second type of component management interface message.

  Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a resource management interface message.

  Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a pin connection interface message.

  Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a second type pin connection interface message.

  Further, the video device according to the present invention is characterized in that, in the video device described above, the message is a streaming interface message.

  Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a file management interface message.

  Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a monitor interface message.

  Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a media synchronization interface message.

  Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a browser interface message.

  Further, in the video device according to the present invention, in the above-mentioned video equipment, the message is a recording reservation interface message.

Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a second type of recording reservation interface message.

  Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a layout interface message.

  Furthermore, a video device according to the present invention is characterized in that, in the video device described above, the message is a layout sub-interface message.

  A broadcast reception and storage device according to the present invention includes a broadcast reception component for receiving a broadcast program, a plurality of broadcast storage components for storing a broadcast program, a management component for managing the broadcast storage component, and a broadcast component. A receiving component, a network connecting the plurality of broadcast storage components, and the management component, wherein the plurality of broadcast storage components transmit a state of the broadcast storage component to the management component through the network, A management component stores the state, and the broadcast receiving component broadcasts one or more storage components from the plurality of broadcast storage components based on a state obtained from the management component through the network. And selecting as the broadcast storage component for storing a broadcast program received by the signal component.

  The broadcast receiving and storing apparatus according to the present invention includes a broadcast receiving component for receiving a broadcast program, a plurality of broadcast storing components for storing a broadcast program, the broadcast receiving component, and the plurality of broadcast storing components. And a network that connects the broadcast receiving component to the broadcast receiving component based on a state obtained from the broadcast storing component through the network. It is characterized in that a broadcast program to be received is selected as a broadcast storage component for storing the broadcast program.

  A broadcast storage and display device according to the present invention includes a plurality of broadcast storage components for storing broadcast programs, a broadcast display component for displaying broadcast programs, and information on programs stored in the plurality of broadcast storage components. A management component for managing, the plurality of broadcast storage components, the broadcast display component, and a network for connecting the management component, wherein the plurality of broadcast storage components are configured to store broadcasts. Transmitting program information to the management component, the management component storing the information, and the broadcast display component retrieving one of the broadcast storage components from the plurality of broadcast storage components based on the information obtained through the network from the management component. Or two or more components And selecting as the broadcast storage components for reproducing a broadcast program that the broadcast display component displays.

  The broadcast storage and display device according to the present invention includes a plurality of broadcast storage components for storing a broadcast program, a broadcast display component for displaying a broadcast program, the plurality of broadcast storage components, and the broadcast display component. And a network for connecting the plurality of broadcast storage components, wherein the plurality of broadcast storage components are based on information of broadcast programs stored in the plurality of broadcast storage components obtained through the network from the plurality of broadcast storage components. And selecting one or more components from among the broadcast storage components as a broadcast storage component for reproducing a broadcast program displayed by the broadcast display component.

  A video system according to the present invention includes a network and a plurality of video devices connected to the network, wherein one of the video devices is set to a trigger standby state, and one or more other video devices are The video device set to the place state and when a trigger occurs, the video device set to the trigger waiting state sends a message corresponding to the trigger to the other one or more video devices, and the other 1 or 2 The above video equipment starts an operation corresponding to the message.

  In the video system according to the present invention, in the video system described above, the correspondence between the trigger and the message is determined by another message sent to a video device set to a standby state.

  Further, in the video system according to the present invention, in the video system described above, the correspondence between the message and the operation is determined by another message sent to the video device set to the place state. system.

  As described above, the broadcast storage / viewing apparatus according to the present invention has at least one broadcast receiving apparatus, one broadcast storage apparatus, and one broadcast viewing / listening apparatus, and connects each apparatus via a network. Also, there is one network management device on the network, and this device always keeps the status of other devices on the network. When a device other than the network management device communicates with another device via the network and performs some processing, the network management device must communicate with any device unless it is a communication with a specific device. Ask if you should. Each device communicates with the designated device based on the response result from the network management device, and completes necessary processing. When a state is changed in the apparatus as a result of processing performed by each apparatus, the change in state is notified to the network management apparatus.

  Therefore, based on the request of the user of the broadcast storage and viewing device according to the present invention, a necessary device can be automatically selected from the video devices connected to the network, and the user has to select the video device himself / herself. Can be omitted.

  Further, the user of the broadcast storage / viewing apparatus according to the present invention only needs to connect the broadcasting apparatus to the network when adding the broadcasting apparatus, and does not need to make any special settings.

  Hereinafter, a broadcast storage and viewing apparatus according to an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a configuration diagram of the broadcast storage / viewing apparatus according to the present embodiment. This apparatus includes broadcast receiving apparatuses 1 and 2, broadcast storage apparatuses 3 and 4, broadcast viewing apparatuses 5 and 6, a network management apparatus 7, and a network connecting these. The broadcast receiving devices 9 and 10 receive the broadcast program from the antennas 9 and 10 and output the broadcast program to the broadcast storage device 3 or 4 through the connected network 8. The broadcast storage devices 3 and 4 store the input broadcast program. The broadcast programs stored in the broadcast storage devices 3 and 4 are output to the broadcast viewing device 5 or 6 through the network 8, and the broadcast viewing devices 5 and 6 display the input broadcast program video and output sound. The broadcast receiving devices 1 and 2, the broadcast storage devices 3 and 4, and the broadcast viewing devices 5 and 6 are collectively referred to as a video device. In a broad sense, the network management device 7 is also included in the video device in the sense that a message is transmitted to a network or a message is received from the network.

  As the network, for example, a network based on IP (Internet Protocol) or a network based on IEEE1394 is selected.

  As the broadcast storage devices 3 and 4, for example, a large-capacity hard disk or the like is assumed.

  The network management device 7 manages information of each device on the connected network 8. The information to be managed includes an identification number of the connected device, function information of the connected device, a state of the connected device, and the like. When a certain device is connected to the network 8, the device first notifies the network management device 7 of a function of the device (for example, a video viewing device that functions as an NTSC TV). . The network management device 7 receiving the notification gives the device an identification number so as to guarantee the uniqueness of the device within the network 8, and thereafter, as long as the device is connected to the network, And function information as a set. Also, from the time when a certain device is connected to the network 8 until the time when the device is disconnected, the device is always managed together with the identification number even when the status of the device changes. In other words, the device sends a state change together with its own identification number to the network when there is a state change, and the network management device 7 receives it and manages it internally. When a request is received from any device connected to the network 8, the network management device 7 notifies the device of what function and status another device has. The requesting party autonomously decides which device to communicate with and performs the necessary processing by itself according to the function and status notified about the other device, and establishes communication. Starts communication with the device. In addition, the status of management or notification by the network management device 7 or each device includes the availability of the device such as “available”, “reserved in the future”, “unavailable (and the reason)”. Information on gender.

  For example, when it is desired to store the broadcast program received by the broadcast receiving device 1 in the currently available one of the broadcast storage devices 3 and 4 for only 30 minutes, first, the broadcast receiving device 1 A request for a list of connected devices is made, the available broadcast storage device 3 (or 4) is selected by referring to the received list, and the selected broadcast storage device 3 (or 4) is selected for the next 30 minutes. Request that programs be stored only during. For example, the broadcast storage device 3 automatically selects the latter and records a broadcast even if the amount of data already stored is large and new recording is not possible, if the storage capacity of the broadcast storage device 4 has room.

  In addition, the network management device 7 provides other devices with information on what broadcast programs have been stored and available in the broadcast storage devices 3 and 4 as information. For example, information such as “a program broadcasted on 6 ch from 19:20 on January 7, 1997 to 20:00 on January 7, 1997 can be reproduced by the broadcast storage device 3” is provided. This information is, for example, such that the broadcast viewing apparatus 5 is "is there any apparatus that stores programs broadcasted on 6 ch from 19:30 on January 7, 1997 to 19:50 on January 7, 1997?" An inquiry is issued to the network 8 based on the operation of the viewer, and it is determined which of the broadcast storage apparatuses 3 and 4 can be connected to obtain the requested portion from the information on the network 8 related to the inquiry. Used when

  There are two ways to do this.

  One is that when the broadcast storage devices 3 and 4 are newly connected to the network 8 and when a new broadcast program is stored, information on the broadcast programs stored in the devices is stored in the network management device 7, Each device issues a request for acquiring or retrieving a list of programs stored in the network management device 7 as necessary, and knows which of the broadcast storage devices 3 and 4 stores the required program. .

  Secondly, only the broadcast storage devices 3 and 4 hold information on programs stored in the devices, and are connected to the network 8 when a certain device wants to obtain information on a specific program. This is a method in which a program list acquisition or search request is issued to all broadcast storage devices to determine which broadcast storage device stores a required program.

  In any case, the user of the present apparatus does not need to be aware of which apparatus stores the program requested by the user, and the network 8 autonomously establishes a broadcast storage apparatus in which the program is stored. Thus, it is possible to logically connect the broadcast viewing apparatus used by the viewer on the network 8 and reproduce the program requested by the viewer.

  Similarly, the category of each scene of the program stored in the broadcast storage device storage information is added to the storage information, and the broadcast storage device that reproduces the scene of the program of the category requested by the viewer is automatically selected. can do. The program category is transmitted in a form embedded in the vertical erasure period of the video signal of the broadcasted program or transmitted simultaneously with the program on the Internet. By providing this, the above can be realized.

  When a device is connected, the device first notifies the network management device of its own function, and the network management device that has received the notification confirms the uniqueness of the device in the network. An identification number is given to the device so that it is guaranteed, and thereafter, as long as the device is connected to the network, the identification number and the function information are managed as a set. Each device on this apparatus can be added without performing special settings. For example, when a new broadcast storage device is added to increase the program storage capacity or a broadcast viewing device is added to enable simultaneous viewing of different programs, the user does not need to make any settings other than connection. Help me.

  In the above description, the selection of the broadcast storage device is taken as an example, but the selection of the broadcast receiving device and the selection of the broadcast viewing device are also held in the network management device 7 connected to the network 8 in the same manner as described above. This can be performed according to the state of each device.

  Further, a broadcast transmitting device for transmitting a program to the network via a telephone line or the like may be added to the network 8 or a reproduction-only device such as a CD-ROM or a DVD. A broadcast transmission device and a playback-only device are also included in the video device.

  Next, an example of a format of a message transmitted and received on the network will be described.

  The message is on UDP (User Datagram Protocol).

  This message is composed of a protocol header, a message body, and an additional information. The protocol header has a fixed length, and the message body and the additional information have a variable length.

  Protocol headers are used to identify the source and destination of data. The message body describes the message body. The additional information associates an IEEE 1394 node identifier used in a protocol header and a message body with an IP (Internet Protocol).

  The protocol header includes a source node ID, a source subnode ID, a destination node ID, a destination subnode ID, a request number, a message ID, a message length, an additional information length, and the like.

  The source node ID indicates the node ID on the IEEE1394 of the device in which the source component exists. The source sub-node ID indicates a local ID of the source component in the device. The destination node ID indicates a node ID on the IEEE1394 of the device in which the destination component exists. The destination subnode ID represents a local ID of the destination component in the video device. Note that a component is a logical configuration unit of software that can be controlled from a program via an API (Application Programming Interface), and typically includes hardware and its control unit. Examples of the component include a video component including a VCR and a control unit thereof, and a monitor component including a TV reception unit and a control unit thereof. Components communicate via UDP.

  The request number is the number assigned to each message by the requesting component, and the responding component assigns the same request number to the response message, so that multiple requesting components respond to which request. Can be identified.

  The message length indicates the length of the message body, and the additional information length indicates the length of the additional information.

The message includes a common interface message, a component management interface message, a second type of component management interface, a resource management interface message, a pin connection interface message, a second type of pin connection interface message, a streaming interface message, a file management interface message, and a monitor interface. Messages, media synchronization interface messages, browser interface messages, recording reservation interface messages, second type component management interfaces, layout interface messages, and layout sub-interface messages.

  The common interface message is a basic message that can be interpreted by all components, and includes a shutdown request, a shutdown response, a survival inquiry, a survival response, a reset request, and a reset response. The type of message is specified by the message ID of the protocol header. Response constants representing response contents are inserted into various responses. The response constant is included in the message body.

  The shutdown request is a message requesting externally to terminate the component, and the shutdown response is a response to this. The alive inquiry is a message for confirming whether or not the component can respond, and the alive response is a response thereto. If the survival response is not within the predetermined time, the side that made the survival inquiry considers that the component of the inquiry destination is in an unresponsive state. The reset request is a message for resetting the state of the component to an initial state immediately after startup, and the reset response is a response to this.

  Components belonging to the component management interface message include a component registration request, a component registration response, a component registration deletion request, a component registration deletion response, a component search request, a component search response, a component connection request, a component connection response, a component connection disconnection request, and a component connection request. There is a disconnection response.

When issuing a request belonging to the component management message, the type of the interface (sort) supported by the component is also notified in the message body. The interface types include a resource manager interface (network management device interface), a monitor interface, a recording interface, a layout interface, a browser interface, and a file management interface. Below the type is a subsort. There is no sub-type of resource manager. There are a TV tuner type and a playback type as sub-types dependent on the monitor interface. There are a TV tuner type and a recording type as sub-types dependent on the recording interface. TV tuner types include a terrestrial tuner, a cable TV tuner, and a satellite broadcast tuner. Playback types include MPEG1 playback, MPEG2 playback, and motion JPEG playback. Recording types include MPEG1 recording, MPEG2 recording, and motion JPEG recording.

  The component is registered in the resource manager by the component registration request. The message body of the component registration request contains the node ID, subnode ID, interface type, and subtype of the component to be registered. A plurality of components can be registered by a component registration request. Also, a plurality of types can be registered for the same component, and a plurality of sub-types can be registered for the same type.

  The message body of the component registration response includes the number of registered components, their node IDs, subnode IDs, and return values.

  The message body of the component registration deletion request includes the number of components to be deleted, their node IDs, and subnode IDs.

  The message body of the component registration deletion response includes the number of deleted components, their node IDs, subnode IDs, and return values.

  Since the component search request specifies the component to be searched by combining the combination of the type and the sub-type with the logical expression of the product sum, the message body of the component search request includes the number of logical OR inputs and the And the combination of the type and sub-type that will be the inputs of each logical product.

    By setting a conditional expression combining a type and a sub-type in the message body of the component search request, it is possible to search for a component capable of receiving cable TV and decoding MPEG2, for example.

  The message body of the component search response includes the number of components that match the request, their node ID, subnode ID, type, and subtype.

  Components belonging to the second type of component management interface message include a component search request with time designation, a component lock notification, a component lock response, a component unlock notification, a component unlock response, a component reservation status acquisition request, and a component reservation status acquisition response. There is.

  The component search request with time specification specifies the component to be searched by combining the combination of the type and the sub-type with the logical expression of the product sum, so the message body of the component search request with time specification is the same as the component search request. , The number of inputs of the logical sum, the number of inputs of the logical product to be each logical sum input, and the set of the type and the sub-type to be the input of each logical product are included. The component search request with time designation further includes the start year, start month, start date, start time, start minute, second, end year, end month, end date, end time, end minute, and end second.

  The component lock notification includes a lock start time and a lock end time specified by date, hour, minute, and second. The sending component notifies the destination that the reservation cannot be accepted from the lock start time to the lock end time. The component lock response is a response to the component lock notification and includes a response constant. The broadcast storage device can notify that there is no remaining recording capacity by setting the lock end period of the component lock notification to be infinite.

  The component unlock notification includes an unlock start time and an unlock end time specified by date, hour, minute, and second. The component that sends this notifies the destination that the reservation can be accepted from the unlock start time to the unlock end time. The component unlock response is a response to the component unlock notification and includes a response constant.

  The component reservation status acquisition request requests the status of a component having a reservation. In response to this, the component reservation status acquisition response includes a response constant, the number of components, the node ID and subnode ID of each component, the number of reservations of each component, the start time specified by the date, hour, minute, and second of each reservation, and Including end time.

  The resources belonging to the resource management interface message include a resource registration request, a resource registration response, a resource registration deletion request, a resource registration deletion response, a resource search request, and a resource search response. However, a resource is data that can be referenced from a component. That is, the resource is, for example, a broadcast or a file. Resources are numbered sequentially within each component.

  The message body of the resource registration request includes the number of resources to be registered, their serial numbers, and names. The message body of the resource registration response includes the number of registered resources, their serial numbers, and error constants.

  The message body part of the resource registration deletion request includes the number of resources to be deleted, their serial numbers, and names. The message body of the resource registration deletion response includes the number of deleted resources, their serial numbers, and error constants.

  The resource search request is a message for searching for the location of a resource. This is sent to the resource manager. The resource to be searched is specified by a URL, and this URL is included in the message body of the resource search request.

This URL is composed of an association, a provider, a data type, and a resource ID. The association is a descriptor representing an organization that guarantees the uniqueness of the resource ID depending on the provider. "Broadcast" is described for a TV station, and "local" is described for a user local. The provider is a descriptor representing the provider of the resource. When the association is "broadcast", it conforms to the station code defined by the Easy Internet Association (EIA). Note that a value in a specific range is assigned to CATV. The data type is the type of the resource to be expressed thereafter, and has a value of "stream" or "nonstream". The resource ID is an identifier of the resource. When the data type is “stream”, it indicates the recording start time and the end time. When the data type is “nonstream”, it mainly indicates the recording start time. This is not the case if the property is guaranteed.

When a broadcast program is recorded in a specific user environment, the association of the URL for the resource is "broadcast", the provider is a station code defined by EIA, the data type is "stream", and the resource ID is a start time stamp and an end time stamp. is there. When a video is distributed using VOD (video on demand), the association of the URL to the resource is "vod", the provider is the company identifier of the data supplier, the data type is "nonstream", and the resource ID is the data provider. An identifier that guarantees uniqueness. The association of the URL of the video created by the user in the local environment is "local", the provider is an arbitrary identifier that guarantees uniqueness by the user, the data type is "stream", and the resource ID is a start time stamp and an end time stamp. .

  The resource search response is a response message to the resource search request. The message body of the resource search response includes the number of searched resources, their node IDs, subnode IDs, names, start times, end times, and the like.

  The pin connection interface message includes a pin direct connection request, a pin direct connection response, a pin connection disconnection request, and a pin connection disconnection response.

  The pin direct connection request and the pin direct connection response are messages for preparing an input pin and an output pin for performing UDP communication between two components. The pin connection disconnection request and the pin connection disconnection response are messages for disconnecting the connection.

  The pin direct connection request starts connection negotiation of UDP data communication directly from the requesting side to the responding side. The connection ID is included in the message body of this request. The connection ID is the connection number (socket port number) of the pin that receives the UDP data.

The pin direct connection response is a response to the pin direct connection request, and the message body of the response includes a connection ID and an error constant.

  The pin connection disconnection request requests that the pin connection already connected is disconnected. The connection ID is included in the message body of this request.

  The pin connection disconnection response is a response to the pin connection disconnection request, and the message body includes a response constant.

As the second type pin connection interface message, there is a pin direct connection request with time designation.

  The pin direct connection request with time designation is obtained by adding a recording reservation start time and a recording reservation end time designated by year, month, day, hour, minute, and second to the pin direct connection request.

  A stream control request, a stream control response, a stream stop request, a stream stop response, a stream restart request, and a stream restart response belong to the streaming interface message.

  The stream control request is a message for adjusting the amount of data transferred per second and the number of data transfers exchanged between the other party and itself, and the stream control response is a response message to this. The stream stop request is a message for temporarily stopping the transmission of the other party, and the stream stop response is a response message to this. The stream restart request is a message for restarting the transmission of the stopped partner, and is a response message to the stream restart response.

  The message body of the stream control request includes a connection ID indicating the connection number used by the responding component for data reception, the number of data transmission bytes per request of the desired requester, and the number of bytes per second of the desired requester per second. It includes the number of data transmissions, the amount of data reception per request by the desired requester, and the number of data receptions per second by the desired requester.

  The message body of the stream control response includes a response constant, a desired number of bytes of data transmission per response side, a desired number of data transmissions per second of the response side, and a desired data reception of the response side per time. Volume, and the number of times the desired responder receives data per second.

  The connection ID is included in the message bodies of the stream stop request and the stream restart request. Response constants are included in the message bodies of the stream stop response and the stream restart response.

  The file management interface message includes a file read request, a file read response, a file write request, a file write response, a file list addition request, a file list addition response, a file list deletion request, and a file list deletion response.

The file read request is a message requesting that the resource managed by the file manager (broadcast storage device) on the responding side be transmitted to the requesting side, and the file reading response is a response message to this. The file write request is a message that sends the requesting resource to the responding file manager, and the file write response is a response to this. The file list addition request is a message for registering a resource in the responding file manager, and the file list addition response is a response to this. The file list deletion request is a message for deleting a resource registered in the file manager on the responding side from the registration, and the file list deletion response is a response message to this.

  The message body of the file read request includes the connection ID and the resource name. The message body of the file read response includes a response constant. The message body of the file write request includes a connection ID and a URL that is a resource name registered on the transmission side. A response constant is included in the message body of the file write response. The message body of the file list addition request contains the number of resources to be added, their internal IDs, which are temporary serial numbers in the requesting component, and their source names. The message body of the file list addition response includes the number of added resources, their internal IDs, and response constants. The message body of the file list deletion request includes the number of resources to be deleted and their internal IDs and names. The message body of the file list deletion response includes the number of deleted resources, their internal IDs, and response constants.

  Those belonging to the monitor interface message include a scenario new creation request, a scenario new creation response, a scenario deletion request, a scenario deletion response, a scene addition request, a scene addition response, a scene deletion request, a scene deletion response, a scene insertion request, and a scene insertion response. , Scene registration number acquisition request, scene registration number acquisition response, scene acquisition request, scene acquisition response, playback start request, playback start response, playback stop request, playback stop response, playback pause request, playback pause response, playback position change Request, a playback position change response, a playback restart request, a playback restart response, a scene movement request, a scene movement response, a playback speed change request, a playback speed change response, a playback state acquisition request, and a playback state acquisition response.

The scenario new creation request is a message for newly creating a scenario, and the scenario new creation response is a response message to this. Note that a scenario refers to the entire reorganized program (a program formed by combining a part of one or more programs by the user) from the beginning to the end, and is composed of a plurality of scenes. A scene refers to a continuous broadcast portion of a reorganized program and is composed of a plurality of shots. A shot refers to a file with recorded content. The scenario deletion request is a message for deleting a scenario, and the scenario deletion response is a response to this. The scene addition request is a message for adding a new scene to the end of the scenario, and the scene addition response is a response message to this. The scene deletion request is a message for deleting the scene specified from the scenario, and the scene deletion response is a response message to this. The scene insertion request is a message for inserting a scene at an arbitrary position in the scenario, and the scene insertion response is a response message to the scene insertion request. The scene registration number acquisition request is a message for acquiring the number of scenes registered in the scenario, and the scene registration number acquisition response is a response message to this. The scene acquisition request is a message for acquiring one scene in the designated order, and the scene acquisition response is a response message to the scene acquisition request. The reproduction start request is a message for reproducing the created scenario from the beginning, and the reproduction start response is a response message to this. The playback stop request is a message for stopping the scenario being played, and the playback stop response is a response message to this. The playback pause request is a message for temporarily stopping the scenario being played, and the playback pause response is a response message to this. The playback position change request is a message for changing the playback position of the scenario to a specified time, and the playback position change response is a response message to the change. The playback restart request is a message for restarting the playback of the stopped / paused scenario, and the playback restart response is a response message to this. The scene movement request is a message for changing the playback position of the scenario to the head of the designated scene, and the scene movement response is a response message to this. The playback speed change request is a message for changing the playback speed and direction of the scenario, and the playback speed change response is a response message to this. The reproduction state acquisition request is a message for acquiring the reproduction state of the scenario, and the reproduction state acquisition response is a response message to this.

Nothing needs to be included in the message body of the scenario new creation request. The message body of the new scenario response includes a response constant and a scenario number which is a registration number assigned to the scenario and handled internally by the monitor component. The message body of the scenario deletion request contains the scenario number of the scenario to be deleted. The message body of the scenario deletion response contains a response constant. The message body of the scene addition request includes the scenario number of the scenario to which the scene is to be added, and the URL of the scene to be added. The message body of the scene addition response includes a response constant and a scene number indicating the order of the registered scene in the scenario. The message body of the scene deletion request includes the scenario number of the scenario including the scene to be deleted and the scene number of the scene to be deleted. The message body of the scene deletion response includes a response constant. The message body of the scene insertion request includes a scenario number of a scenario to which a scene is to be added, a scene number indicating a scene insertion location, and a URL of the scene. The message body of the scene insertion response includes a response constant. The message body of the scene registration number acquisition request includes the scenario number of the scenario for which the number of scenes is to be acquired. The message body of the scene registration number acquisition response includes the number of scenes included in the specified scenario. The message body of the scene acquisition request includes the scenario number of the scenario for which the scene is to be acquired and the scene number of the scene for which the scene is to be acquired. The message body of the scene acquisition response includes a response constant and the URL of the acquired scene. The message body of the playback start request contains the scenario number of the scenario for which playback is requested. The message body of the reproduction start response includes a response constant. The message body of the playback stop request contains the scenario number of the scenario to be stopped. The response constant is included in the message body of the playback stop response. The message body of the playback pause request contains the scenario number of the scenario to be paused. The message constant of the playback pause response includes a response constant. The message body of the playback position change request contains the scenario number and the jump time for which the playback position change is requested. The message body of the playback position change response includes a response constant. The message body of the reproduction restart request includes a scenario number for requesting reproduction restart. A response constant is included in the message body of the reproduction restart response. The message body of the scene movement request includes the scenario number of the scenario requesting the scene movement and the relative scene number of the movement destination. The response constant is included in the message body of the scene movement response. The message body of the playback speed change request includes the scenario number and the playback speed of the scenario requesting the speed change. The message constant of the playback speed change response includes a response constant. The message body of the playback state acquisition request contains the scenario number of the scenario requesting the playback state. The message body of the playback state acquisition response includes a response constant, a playback state, a current playback position represented by time, and a current playback speed. The reproduction state is, for example, an indefinite state, during reproduction, during stoppage, during pause, or the like.

  The media synchronization interface message includes a trigger setting request, a trigger setting response, a place setting request, a place setting response, a trigger cancel request, a trigger cancel response, a place cancel request, a place cancel response, and a fire notification.

  Here, a place refers to a state in which a specific operation is performed after the firing occurs until the firing occurs. To synchronize multiple components, set a trigger on one component and create a place on another. The component in which the trigger is set monitors the state until the trigger is established, and the component in which the place is created waits without performing the specified operation until a fire notification is received. When the firing notification is received, the processing is started according to the last message of the processing request. That is, when a plurality of requests come before the fire notification, only the most recent message is executed.

The trigger setting request is a message for setting a trigger (ignition condition), and the trigger setting response is a response message to this. The place setting request is a message for setting a place, and the place setting response is a response message to this. The trigger cancellation request is a message for canceling the already set trigger, and the trigger cancellation response is a response message to this. The place cancel request is a message for canceling a place that has already been set, and a place cancel response is a response message to this.

  A message to be notified after firing can be set in the trigger setting request. Further, a message sent at the time of firing can be set in the place setting request.

  The message body of the trigger setting request includes a trigger (firing condition), the number of pairs of firing contact nodes and subnodes, their node ID, subnode ID, and a message to be notified after firing. The message body of the trigger setting response includes a response constant. The message body of the place setting request includes a message to be sent at the time of firing. The message constant of the place setting response includes a response constant. The message body of the trigger cancellation request may not include anything. A response constant is included in the message body of the trigger cancellation response. Nothing may be included in the message body of the place cancellation request. The message body of the place cancellation response includes a response constant. The message body of the firing notification includes a user-defined message that needs to be notified along with the firing.

  The browser interface message includes a browser control right acquisition request, a browser control right acquisition response, a browser control right return request, a browser control right return response, a browser page display request, and a browser page display response. .

  Here, the browser displays program-related information that is transmitted in a form embedded in the vertical erasing period of the video signal of the broadcast program or transmitted simultaneously with the program on the Internet. Equipped.

  The browser control right acquisition request is a message requesting the start of use of the browser component, and the browser control right response is a response message to this. The browser control right return request is a message requesting termination of use of the browser component, and the browser control right return response is a response message to this. The browser page display request is a message for setting a URL to be displayed on the browser component, and the browser page display response is a response message to this.

  Nothing may be included in the message body of the browser control right acquisition request. The message body of the browser control right acquisition response includes a response constant and an access serial number. The message body of the browser's control right return request includes the access serial number. The response constant is included in the message body of the browser control response. The message body of the browser page display request includes a serial number for access, a frame character string, and a URL. The frame character string is an identification character string of a frame indicating a URL, and the URL here is a URL displayed in a frame specified by the frame character string on the browser component. A response constant is included in the message body of the browser page display response.

  Recording reservation interface messages include a request for a reserved recording of a stream, a response for a reserved recording of a stream, a request for a reserved recording of a non-stream, a response for a reserved recording of a non-stream, a request for canceling a reserved recording, a response for canceling a reserved recording, There are a status list acquisition request and a reservation status list acquisition response.

  Here, the stream is a software unit that has a meaning even in a part of the stream, and has no meaning only by the file name. Examples of streams include video and audio. The non-stream is a software unit that has one meaning from the beginning to the end, and is meaningful only by the file name.

  The request for scheduled recording of a stream is a message for requesting scheduled recording of a stream, and the response to the scheduled recording of a stream is a response message to the request. The request for reservation recording of the stream is transmitted to a recording reservation component (broadcast receiving device), and the channel and the recording start time / recording end time are entered in the request. If the content of the stream reservation recording overlaps with the content already reserved, the fact that the reservation is a duplicate reservation is entered in the stream reservation response. The non-stream scheduled recording request is a message for requesting non-stream scheduled recording, and the non-stream scheduled recording response is a response message to the request. A non-stream reservation recording request is also transmitted to the recording reservation component (broadcast receiving device), and the station code, recording start time / recording end time, and the URL of the reserved word according to EIA are entered. When the request content of the non-stream reservation recording overlaps with the already-reserved content, the fact that the reservation is a duplicate reservation is entered in the non-stream reservation response. The reservation recording cancellation request is a message for canceling the already reserved recording reservation, and the reservation recording cancellation response is a response message to this. The reservation status list acquisition request is a message requesting the currently reserved recorded program list, and the reservation status list acquisition response is a response message to this. The reservation status list acquisition response includes the number of reserved recordings, the reservation number, the URL after recording (in the case of a non-stream), the recording start time, the recording end time, and the like.

  The message body of the request for reservation recording of a stream includes a channel, a start time including year, month, day, hour, minute, and second, and an end time. The message body of the reservation recording response of the stream includes a response constant and a reservation number assigned on the record component side. The message body of the non-stream scheduled recording request includes a channel, a start time including year, month, day, hour, minute, and second, an end time, and a URL after the recording. The message body of the non-stream reserved recording response includes a response constant and a reservation number assigned on the record component side. The message body of the reservation recording cancellation request includes the reservation number to be canceled. The response constant is included in the message body of the reservation recording cancellation response. Nothing may be included in the message body of the reservation status list acquisition request. The message body of the reservation status list acquisition response includes the number of reservation recordings, the reservation number for each reservation recording, the URL after recording, the channel, the start time including the date, month, day, hour, minute, and second, and the end time.

  As a type belonging to the second type of recording reservation interface message, there is a request for reservation recording of a stream with storage designation.

  The channel and the recording start time / recording end time are included in the reservation recording request of the stream with storage designation, similarly to the request of the stream reservation recording. The request for reservation recording of the stream with storage designation further includes a storage node identifier and a storage subnode identifier.

  The components belonging to the layout interface message include a component view move request, a component view move response, a move request suspend request, a move request suspend response, a move request complete request, and a move request complete response.

  Here, the component view is an information input / output unit, and is mainly an output unit. By moving the component, the layout of the component on the screen moves. Or, the physical components actually move. As an example of the latter, there is a movement of the speaker from front to back, left and right, and the like.

  The move request of the component view is a message requesting to move the view of the component, and the move response of the component view is a response message thereto. The request for moving the component view includes a node ID, a subnode ID, a start time, an end time, coordinates on the screen after the movement, and the like. A request to move a component view is not sent directly to the component to be moved, but is issued to a component having a layout interface on a device on which the view of the component is displayed. The component to be moved receives a movement message from a component having the layout interface through a layout sub-message. The request to suspend the movement request is a message for suspending the movement of the component in the middle, and the suspension response to the movement request is a response message to the request. The completion request of the movement request is a message for completing the movement of the component, that is, for moving the component to reach the end time, and the completion response of the movement request is a response message to the completion request.

In the message body of the move request of the component view, the node ID of the component to be moved, the subnode ID, the movement start time expressed in hours, minutes, seconds, the movement end time, the movement start time, and the movement end time are expressed in absolute time. The information includes an identification flag indicating whether the component is represented by a relative time, the coordinates of the component after the movement, the size of the window after the movement, and the like. The response body is included in the message body of the movement response of the component view. The message body of the interruption request of the movement request includes the node ID and the subnode ID of the component whose movement is to be interrupted. The response constant is included in the message body of the suspension response of the movement request. The message body of the completion request of the movement request includes the node ID and the subnode ID of the component whose movement is to be completed. The message body of the move request includes a response constant.

  A component movement request belongs to the layout sub-interface message.

  The component movement request is a message requesting movement from a component having a layout interface to a component under its management. The message body of the component move request includes the absolute coordinates on the destination screen, the width of the view (window), and the height.

  Next, an operation example of a component accompanied by transmission and reception of a message will be described with reference to the drawings.

  FIG. 2 is a sequence diagram of a message when confirming the existence of the device.

  Referring to FIG. 2, the network management device 7 sends a message of a liveness inquiry to the broadcast storage device, for example, in order to confirm the existence of the storage unit of the broadcast storage device. The broadcast storage device returns a survival response to this.

  FIG. 3 is a sequence diagram of messages transmitted and received between the video device and the network management device 7 when the video device is connected to the network.

  Referring to FIG. 3, when the video device is connected to the network, the video device transmits a component registration request to the network management device 7 to request registration of the video device itself to the network. The network management device 7 returns a component registration response to this. If it is confirmed from the component registration response that the own device has been registered, the video device transmits a resource registration request to the network management device 7 to register the resources stored in the own device to the network. Request. The network management device 7 returns a resource registration response to this.

    FIG. 4 is a sequence diagram of messages transmitted and received between the user terminal (user application), the network management device 7, and the broadcast storage device 3 or 4 when playing back video.

  Referring to FIG. 4, when a user terminal requests a certain image to be reproduced by a user operation, the user terminal transmits a resource search request to the network management device 7 for a video device in which the video is stored. The network management device 7 returns to the user terminal a resource search response including information on which video device the requested video is stored. Next, the user terminal transmits a pin direct connection request to the broadcast storage device to secure a communication path for video transmission with the broadcast storage device in which the video is found to be stored. . The broadcast storage device returns a pin direct connection response to the user terminal. If it can be confirmed from the pin direct connection response that the communication channel has been secured, the user terminal transmits a stream control request to the broadcast storage device. The broadcast storage device returns a stream control response to this. Next, the user terminal transmits a file read request to the broadcast storage device. The broadcast storage device returns a file read response to this.

  Thereafter, binary transfer is performed using the pins set in the pin interface.

  FIG. 5 is a sequence diagram of a message transmitted and received among the user terminal (user application), the network management device 7, the broadcast receiving device 1 or 2, and the broadcast storage device 3 or 4 of the first example when recording a program. It is.

  Referring to FIG. 5, when a user terminal has a reservation for recording a program by a user operation, the user terminal transmits a component search request to the network device 7 for a video device that can be reserved for receiving the program. The network management device 7 returns to the user terminal a component search response including information on which video device can make a reservation to receive the requested program. Next, the user terminal transmits a stream recording reservation request to the broadcast receiving apparatus in order to make the broadcast receiving apparatus, which has been found to be able to make a reservation for the program, make a reservation for reception. The broadcast receiving device returns a response to the reservation recording of the stream to the user terminal.

When the reservation time comes, the broadcast receiving device transmits a component search request to the network management device 7 to search for a video device that stores a program. The network management device returns a component search response including information on which video device can store the program to the broadcast receiving device. Next, the broadcast receiving device transmits a pin direct connection request to the broadcast storage device in order to secure a communication path for video transfer with the broadcast storage device that has been found to be able to store the program. The broadcast storage device returns a pin direct connection response to the broadcast receiving device. Next, the broadcast receiving device transmits a stream control request to the broadcast storage device to the broadcast storage device. The broadcast storage device returns a stream control response to the broadcast receiving device. Next, the broadcast receiving device transmits a file write request to the broadcast storage device to transfer the video. The broadcast storage device returns a file write response to the broadcast receiving device, and video transfer starts.

  When the reception of the program reservation is completed, the broadcast receiving device transmits a pin connection disconnection request to the broadcast storage device to open the communication path. The broadcast storage device returns a pin connection disconnection response to the broadcast receiving device. Next, the broadcast storage device transmits a resource registration request including information on the stored program to the network management device 7 in order to register the program on the network. The network management device 7 returns a resource registration response to the broadcast storage device.

  Instead of sending and receiving component search requests, component search responses, pin direct connection requests, and pin direct connection responses until the scheduled recording time comes, these messages are transmitted and received immediately after the request for the scheduled recording of the stream. After the pin direct connection is established, the broadcast receiving apparatus may return a stream reservation recording response (shown by a broken line) to the user terminal. In this case, the user terminal can confirm whether or not both the broadcast receiving device and the broadcast storage device are ready for scheduled recording immediately after transmitting the component search request. Multiple pin direct connections can be set for the same component, and one pin direct connection does not prevent communication with other pin direct connections. There is no problem connecting. For example, when TCP / IP is used as a protocol, different ports may be assigned to different pin direct connections.

  FIG. 6 is a sequence diagram of a message transmitted and received between the user terminal (user application), the network management device 7, the broadcast receiving device 1 or 2, and the broadcast storage device 3 or 4 of the second example when recording a program. It is.

  The network management device manages the reservation status of each device registered in the network management device on a time basis. The reservation status is 1-bit information indicating whether there is room to reserve a processing request at each time for each device.

  The user terminal (user application) sends a component search request to the network management device to search for a video device that can be received at a specified time. The network management device returns a component search response to the user terminal. The user terminal obtains a list of broadcast receiving devices that can be received at the designated time by the component search response.

  Next, the user terminal sends a request for reservation recording of the stream to the broadcast receiving device corresponding to any of the set of the node ID and the sub node ID in the list. If the broadcast receiving apparatus that has sent the request for the scheduled recording of the stream is found to be unable to receive the scheduled recording based on the value of the response constant in the response to the scheduled recording of the stream, the reservation of the stream is performed by another broadcast receiving apparatus in the list. Send a recording request. If all the broadcast receiving apparatuses cannot perform the reservation reception, it is determined that the reservation recording has failed.

  Next, the broadcast receiving apparatus capable of scheduled recording sends a component lock notification to the network management apparatus. In this component lock notification, the scheduled recording start time and the scheduled recording end time are entered. Next, the network management device returns a component lock response to the broadcast receiving device, and the broadcast receiving device accepts a new scheduled recording between the scheduled recording start time and the scheduled recording end time included in the component lock notification. Manage as not possible. If the broadcast receiving device has a plurality of tuners and there is room to accept a new scheduled recording, the broadcast receiving device does not transmit the component lock notification.

  Next, the broadcast receiving device sends a component search request with time designation to the network management device in order to search for a video device capable of storing the broadcast at the designated time. The network management device returns a component search response to the user terminal. The user terminal obtains a list of broadcast storage devices capable of storing the broadcast at the designated time by the component search response.

  Next, the broadcast receiving device sends a pin direct connection request with time designation to the broadcast storage device corresponding to any one of the set of the node ID and the subnode ID in the list. The broadcast storage device returns a pin direct connection response to the pin direct connection request with time designation to the broadcast receiving device. Depending on the value of the response constant in the pin direct connection response, the broadcast storage device that sent the pin direct connection request is reserved for lack of remaining recording capacity or another recording reservation with overlapping times. When it is determined that recording cannot be performed, the broadcast receiving device sends a pin direct connection request to another broadcast storage device in the list. If all broadcast storage devices cannot perform scheduled recording, it is determined that the scheduled recording has failed.

  The broadcast storage device capable of scheduled recording returns a pin direct connection response, while transmitting a component lock notification to the network management device, and the network management device returns a component lock request to the broadcast storage device.

  Then, when the scheduled time comes, the scheduled recording starts.

  If the recording reservation is canceled for any reason before the recording reservation end time, the broadcast receiving device that knows it through some route sends a pin direct disconnection request to the broadcast storage device, and the broadcast storage device A pin direct disconnection response is returned to the receiving device. Since the broadcast receiving device is in a state in which a new recording reservation can be made in a hurry, the broadcast receiving device sends a component unlock notification to the network management device, and the network management device returns a component unlock response to the broadcast receiving device. Similarly, the broadcast storage device sends a component unlock notification to the network management device, and the network management device returns a component unlock response to the broadcast storage device.

  The sequence diagram of FIG. 6 shows a message between the user terminal, the network management device, and the broadcast receiving device and the broadcast storage device capable of scheduled recording, and the broadcast receiving device and the broadcast storage device that cannot accept the scheduled recording. The messages sent and received by the device are not shown.

  FIG. 7 is a sequence diagram of messages transmitted and received among the user terminal (user application), the network management device 7, the broadcast receiving device 1 or 2, and the broadcast storage device 3 or 4 in the third example when recording a program. It is.

  The user terminal (user application) sends a component search request to the network management device to search for video devices that can receive broadcasts and video devices that can store broadcasts at a specified time. The network management device returns a component search response to the user terminal. The user terminal obtains a list of broadcast receiving devices capable of receiving broadcast at the designated time and a list of broadcast storage devices capable of accumulating broadcast at the designated time by the component search response.

  The video device included in the list of the component search response is in a “temporary hold” state on the network management device. The state of “temporary holding” refers to a state of securing resources for a fixed time (for example, 0.01 seconds). The resource securing state means a state in which the resource is not included in the component search response to the component search request including the specified time until the resource is released subsequently. If a component lock notification is received from a component while the component is in the “temporary hold” state, the state shifts to the resource securing state. If no component lock notification is received, the state returns to the normal state.

  Next, the user terminal sends a reservation recording request of the stream with storage designation to the broadcast receiving device corresponding to any of the set of the node ID and the subnode ID in the list. If the broadcast receiving apparatus that has sent the request for the scheduled recording of the stream is found to be unable to receive the scheduled recording based on the value of the response constant in the response to the scheduled recording of the stream, the reservation of the stream is performed by another broadcast receiving apparatus in the list. Send a recording request. If all the broadcast receiving apparatuses cannot perform the reservation reception, it is determined that the reservation recording has failed.

  Next, the broadcast receiving apparatus capable of scheduled recording sends a component lock notification to the network management apparatus. In this component lock notification, the scheduled recording start time and the scheduled recording end time are entered. Next, the network management device returns a component lock response to the broadcast receiving device and sets the broadcast receiving device in a resource securing state. The resource securing state period is included in the component search request with time designation. If the broadcast receiving device has a plurality of tuners and there is room to accept a new scheduled recording, the broadcast receiving device does not transmit the component lock notification.

  Next, the broadcast receiving device sends a pin direct connection request with time designation to the broadcast storage device corresponding to the node ID and the subnode ID included in the reservation recording request for the stream with storage designation.

  Next, the broadcast receiving device returns a response of the scheduled recording of the stream to the user terminal.

  On the other hand, the broadcast storage device transmits a component lock notification to the network management device, and the network management device returns a component lock request to the broadcast storage device, and simultaneously sets the broadcast storage device in a resource securing state.

  The operation when the recording reservation is canceled for some reason before the recording reservation end time is the same as in the second example.

  Note that the sequence diagram of FIG. 7 shows a message between the user terminal, the network management device, and the broadcast receiving device and the broadcast storage device capable of scheduled recording, and the broadcast receiving device that cannot accept the scheduled recording transmits and receives the message. The message is not shown.

  FIG. 8 is a sequence diagram of a message transmitted and received between the user terminal (user application), the network management device 7, the broadcast receiving device 1 or 2, and the broadcast storage device 3 or 4 of the fourth example when recording a program. It is.

  The fourth example shown in FIG. 8 is different from the second example shown in FIG. 6 in that, instead of the component search request with time designation and the component search response transmitted and received in the second example, the component search is performed in the fourth example. A request, a component search response, a component reservation status acquisition request, and a component reservation status acquisition response are transmitted and received.

  The component search request does not include the designated time, and the component search response includes a component that can be reserved for reception or reserved for recording regardless of the reservation status. On the other hand, the component reservation status acquisition response includes components that can be reserved and all time periods that can be reserved by each component, regardless of the type of component. Therefore, the user terminal and the broadcast receiving device can know the appropriate broadcast receiving device and broadcast storage device based on the component search response and the reservation status acquisition response. Also, it is possible to know a broadcast receiving device or a broadcast storage device capable of performing scheduled recording in a part of the scheduled recording time zone desired by the user terminal, and it is possible to perform scheduled recording at that time.

  FIG. 9 shows transmission / reception between a user terminal (user application), a network management device 7, a monitor (moving image playback / display device, not shown), a browser (not shown), and a platform (broadcasting viewing device) for media synchronous playback. FIG. 7 is a sequence diagram of a message to be transmitted. It is assumed that these video devices are connected to a network. There is also a form in which a monitor and a browser are included in the platform.

  Note that media synchronous playback refers to playback in which when the state of a certain medium changes, the state of another medium changes accordingly. In the example of FIG. 9, media synchronized playback of program display and browser display is handled.

  Referring to FIG. 9, when there is a request for media synchronous reproduction by a user operation, the user terminal transmits a component search request to the network management device 7 for a video device having a video display function. The network management device 7 returns a component search response including information on which video device has the video display function to the user terminal. Next, the user terminal device transmits a new scenario creation request to the monitor to create a video display scenario. The monitor returns a new scenario response to the user terminal. The user terminal creates the scenario, and the monitor executes the scenario. Next, the user terminal transmits a scene addition request to the monitor to add one scene to the video display scenario. The monitor responds with an add scene response. Next, the user terminal transmits a trigger setting request to the monitor to set a firing condition for the video. The monitor returns a trigger setting response to it. Setting an ignition condition for an image means, for example, setting to fire when a certain time in the image or a specific scene is reached.

  Next, the user terminal sends a request to move the component view to the platform to move the monitor. The platform returns a component view move response and sends a component move request to the browser.

  Next, the user terminal transmits a reproduction start request to the monitor in order to instruct video reproduction. The monitor returns a playback start response thereto. The monitor decodes and reproduces the transmitted video signal.

  Next, when the firing condition is satisfied during the reproduction of the video, the monitor transmits a firing notification to the user terminal. The user terminal that has received this transmits a component search request to the network management device 7 to search for a browser. The network management device 7 returns a component search response including information on which video device has the browser function to the user terminal.

  Next, the user terminal sends a request to move the component view to the platform to move the browser. The platform responds with a component view move response and sends a component move request to the browser.

  Next, the user terminal transmits a browser control right acquisition request to the browser to start accessing the browser. The browser returns a browser control right acquisition response thereto.

  Next, the user terminal transmits a browser page display request to the browser to change the page displayed on the browser. The browser returns a browser page display response to this.

  Next, when determining that the page display is to be ended, the user terminal transmits a browser control right return request to the browser to end access to the browser. The browser responds with a browser control return response.

  Finally, the user terminal sends a scenario deletion request to the monitor to end the video scenario. The monitor returns a scenario deletion response to this.

FIG. 1 is a diagram illustrating a configuration of a broadcast storage / viewing apparatus according to an embodiment of the present invention. It is a sequence diagram of a message when confirming the existence of the device. FIG. 7 is a sequence diagram of messages transmitted and received between the video device and the network management device 7 when the video device is connected to a network. FIG. 4 is a sequence diagram of messages transmitted and received between a user terminal such as a broadcast viewing device, a network management device, and a broadcast storage device when playing back video. FIG. 7 is a sequence diagram of messages transmitted and received between a user terminal such as a broadcast viewing apparatus of the first example, a network management apparatus, a broadcast receiving apparatus, and a broadcast storage apparatus when recording a program. FIG. 9 is a sequence diagram of messages transmitted and received between a user terminal such as a broadcast viewing device of the second example, a network management device, a broadcast reception device, and a broadcast storage device when recording a program. FIG. 13 is a sequence diagram of messages transmitted and received between a user terminal such as a broadcast viewing device of the third example, a network management device, a broadcast receiving device, and a broadcast storage device when recording a program. FIG. 14 is a sequence diagram of messages transmitted and received between a user terminal such as a broadcast viewing device of the fourth example, a network management device, a broadcast receiving device, and a broadcast storage device when recording a program. FIG. 9 is a first half of a sequence diagram of messages transmitted and received between a user terminal such as a broadcast viewing device, a network management device, a monitor, a browser, and a platform when performing media synchronous reproduction. It is the latter half part of the sequence diagram of the message transmitted / received between the user terminal such as the broadcast viewing / listening device, the network management device, the monitor, the browser, and the platform when performing the media synchronous reproduction. FIG. 3 is a diagram illustrating a configuration of a broadcast receiving device, a broadcast storage device, and a broadcast viewing device according to a conventional example.

Explanation of reference numerals

1, 2 broadcast receiving device 3, 4 broadcast storage device 5, 6 broadcast viewing device 7 network management device 8 network 9, 10 antenna, etc.

Claims (14)

A receiving network, a network management device for managing the network, and a plurality of types of video devices connected to the network,
Each of the plurality of types of video devices sends its own performance information and operation information to the network, and the network management device stores the performance information and operation information,
Each of the plurality of types of video devices queries the network management device for the performance information and operation information of the other video device, and the performance information of the video device desired by itself as a control target and the other information obtained from the network management device. By comparing the performance information of the video device with the other video device having the performance information automatically without the user selecting the device, the video device further retains the specified desired performance. From among the other video devices, by referring to the operation information of the other video device obtained from the network management device, other video devices that are automatically controllable without user selection of the device. A device for specifying a device and performing desired control by communicating with the specified other video device via the network,
further,
The performance information is type information of an interface that may allow the video device to control another video device,
The interface type information is an identifier that uniquely represents two or more independently controllable interfaces simultaneously existing on the network,
The broadcast storage and viewing device according to claim 1, wherein the operation information is information as to whether the video device is in a state where control by an interface desired by the other video device from another video device is currently permitted. A receiving network, comprising a plurality of types of video devices connected to the network,
Each of the plurality of types of video devices inquires the other video devices of the performance information and operation information of the other video devices through the network, and receives the performance information of the video device desired by itself as a control target and the other video devices. By comparing the obtained performance information of the other video device with the obtained video information, the other video device having the performance information is automatically specified without the user's device selection, and further, the specified desired By referring to the operation information of the other video device obtained from the other video device from among the other video devices having performance, it is in a state where it can be currently controlled without user's device selection. A means for performing a desired control by identifying a video device and communicating with the identified other video device via the network,
further,
The performance information is type information of an interface that may allow the video device to control another video device,
The interface type information is an identifier that uniquely represents two or more independently controllable interfaces simultaneously existing on the network,
The broadcast storage and viewing device according to claim 1, wherein the operation information is information as to whether the video device is in a state where control by an interface desired by the other video device from another video device is currently permitted. Means for connecting to a receiving network to which a plurality of types of video devices are connected, and storing the performance information and operation information when the performance information and operation information of the video device are transmitted from the video device to the network; When there is an inquiry about the performance information and the operation information from the video device, the performance information and the operation information comprises sending means,
further,
The performance information is type information of an interface that may allow the video device to control another video device,
The interface type information is an identifier that uniquely represents two or more independently controllable interfaces simultaneously existing on the network,
The network management device according to claim 1, wherein the operation information is information indicating whether the video device is in a state where control by an interface desired by the other video device from another video device is currently permitted. Means connected to a network to which a network management device that manages the receiving network and a plurality of types of video devices are connected, and transmitting its own performance information and operation information to the network;
Inquires the network management device of performance information and operation information of another video device, and compares the performance information of the video device desired by itself as a control target with the performance information of the other video device obtained from the network management device. By doing so, other video devices having the performance information are automatically specified without going through the device selection by the user, and further, from among the other video devices having the specified desired performance, the network By referring to the operation information of the other video device obtained from the management device, another video device in a state that can be automatically controlled without user's device selection is specified, and the specified other video device is specified. Means for performing desired control by communicating with the video device via the network,
further,
The performance information is type information of an interface that may allow the video device to control another video device,
The interface type information is an identifier that uniquely represents two or more independently controllable interfaces simultaneously existing on the network,
The video device, wherein the operation information is information as to whether or not the video device is in a state where control by an interface desired by the other video device from another video device is currently permitted. A means for transmitting its own performance information and operation information to the network connected to a receiving network to which a plurality of types of video devices are connected, and inquiring other video devices for performance information and operation information of another video device; By comparing the performance information of the video device desired by itself as the control target with the performance information of the other video device obtained from the other video device, the performance information is automatically set without user's device selection. Identify another video device having information, and further refer to the operation information of the other video device obtained from the other video device among other video devices having the specified desired performance. By doing so, a video device that is currently in a controllable state without a user selecting a device can be specified, and the specified other video device and the network can be specified. Comprising means for performing the desired control by communicating through,
further,
The performance information is type information of an interface that may allow the video device to control another video device,
The interface type information is an identifier that uniquely represents two or more independently controllable interfaces simultaneously existing on the network,
The video device, wherein the operation information is information as to whether or not the video device is in a state where control by an interface desired by the other video device from another video device is currently permitted. A broadcast receiving component for receiving a broadcast program;
A plurality of broadcast storage components for storing broadcast programs;
A management component for managing the broadcast storage component;
The broadcast receiving component, the plurality of broadcast storage components, comprising a receiving network connecting the management component,
The plurality of broadcast storage components transmit their performance information and operation information to the management component through the network,
The management component accumulates the performance information and the operation information,
The broadcast receiving component queries the management component for performance information and operation information of other components, and automatically specifies a broadcast storage component to be controlled based on the performance information and operation information without obtaining a user's selection. When controlling, if there is no broadcast storage component having sufficient capacity to complete the storage of the broadcast program received by the broadcast reception component in one broadcast storage component in the network, two or more broadcast storage components A broadcast receiving and storing apparatus, wherein the two or more broadcast storing components are specified and controlled so that the broadcast program is divided and stored. A broadcast receiving component for receiving a broadcast program;
A plurality of broadcast storage components for storing broadcast programs;
The broadcast receiving component, comprising a receiving network connecting the plurality of broadcast storage components,
The broadcast receiving component queries the storage component for performance information and operation information of the component, and determines a broadcast storage component to be controlled based on the performance information and operation information. If there is no broadcast storage component having sufficient capacity to complete the storage of the broadcast program received by one broadcast storage component, the broadcast program is divided and stored in two or more broadcast storage components. A broadcast receiving and storing device for controlling two or more broadcast storing components. A plurality of broadcast storage components for storing broadcast programs;
A broadcast display component for displaying a broadcast program;
A management component for managing information of programs stored in the plurality of broadcast storage components,
The broadcast storage component, the broadcast display component, comprising a receiving network for connecting the management component,
The plurality of broadcast storage components transmits information of a broadcast program stored therein to the management component,
The management component stores the information;
The broadcast display component queries the management component for program information stored in the broadcast storage component connected to the network, and identifies a broadcast storage component storing a stored program that the user desires to display. A broadcast storage and display device, which acquires the desired program from the specified broadcast storage component and reproduces and displays the desired program.   9. The broadcast storage component according to claim 8, wherein when the program desired by the broadcast display component is divided into two or more and stored in the broadcast storage component, the broadcast storage component controlling the two or more broadcast storage components storing the divided program is controlled. And storing and displaying the divided programs in the order of the broadcast based on information on which part of the program at the time of the broadcast corresponds to each of the divided programs. apparatus. A plurality of broadcast storage components for storing broadcast programs;
A broadcast display component for displaying a broadcast program;
The broadcast storage component, comprising a receiving network for connecting the broadcast display component,
The broadcast display component queries the storage component for program information stored in the broadcast storage component connected to the network, and identifies a broadcast storage component storing a stored program that the user desires to display. A broadcast storage and display device, which acquires the desired program from the specified broadcast storage component and reproduces and displays the desired program.   11. The broadcast storage component according to claim 10, wherein, when a program desired by the broadcast display component is divided into two or more and stored in a broadcast storage component, two or more broadcast storage components storing the divided program are controlled. And storing and displaying the divided programs in the order of the broadcast based on information on which part of the program at the time of the broadcast corresponds to each of the divided programs. apparatus. In broadcast storage viewing device according to any one of claims 1 to 2,
One of the video devices is set to a trigger waiting state, one or more other video devices are set to a place state, and when a trigger occurs, the video device set to the trigger waiting state is set to the trigger. Sending a message corresponding to the message to the other one or more video devices, and starting the operation corresponding to the message by the other one or more video devices.   13. The broadcast storage / viewing apparatus according to claim 12, wherein the correspondence between the trigger and the message is determined by another message sent to a video apparatus set to a standby state. . 13. The broadcast storage / viewing apparatus according to claim 12, wherein the correspondence between the message and the operation is determined by another message sent to a video apparatus set to a place state. .

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