JP2008117433A - Communication device and recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a communication device executing recording when a device to which recording reservation is set is highly likely no to execute the recording. <P>SOLUTION: When it is detected that the prescribed recording start time is reached according to registered recording reservation information (Yes in S801), a confirmation request for inquiring whether the programmed recording concerned can be executed is transmitted to a recorder to which a recording reservation according to the recording reservation information has been set (S802). When the recorder 11 is highly likely not to execute reserved recording (No in S803 and No in S804), a recording reservation setting section 305 sets a recording reservation to other devices with the same content as that of the reservation set to the recorder 11 (S805). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a communication device and a recording device.

In recent years, as a home network technology, for example, DLNA (Digital Living)
Network Alliance) is being developed. One of the elemental technologies used in DLNA is UPnP (Universal Plug and Play).
In particular, UPnP SRS (Sch
eduled Recording Service (see Non-Patent Document 1, for example) is used.
Alan Presser, 13 others, “Scheduled Recording: 1 Service Template Version 1.01”, [online], March 31, 2006, UPnP Forum, [Search August 10, 2006], Internet (URL: http: //www.upnp.org/specs/av/UPnP-av-ScheduledRecording-v1-Service-20060531.pdf

When performing reservation recording via such a network, the server device to which the recording reservation is set is, for example, a portable device such as a notebook PC (Personal Computer), or the tuner antenna cable is disconnected. Recording may not be possible due to circumstances.

Therefore, an object of the present invention is to provide a communication device that can execute a reserved recording when there is a high possibility that an apparatus that has set a recording reservation cannot execute the reserved recording.

In order to achieve the above object, a communication apparatus according to claim 1 stores a recording reservation information of a recording reservation set in the recording apparatus, and a communication unit that communicates with a recording apparatus that provides a recording function via a network. Storage unit, a recording execution confirmation unit for transmitting a confirmation request for confirming whether or not the recording apparatus can execute recording based on the recording reservation information, and a confirmation request transmitted by the recording execution confirmation unit And a recording reservation setting unit for setting a recording reservation based on the recording reservation information in another recording apparatus different from the recording apparatus.

The communication device according to claim 6, a communication unit that communicates with a recording device that provides UPnP SRS via a network, a storage unit that stores a record schedule set in the recording device, and a recording based on the record schedule. A recording execution confirmation unit that transmits a confirmation request for confirming whether or not the apparatus can be executed from the communication unit, and the recordSchedule according to a response to the confirmation request transmitted by the recording execution confirmation unit
And a recording reservation setting unit that transmits a CreateRecordSchedule action based on the method to another recording device different from the recording device.

The recording device according to claim 9 is a recording device that communicates with the first communication device and the second communication device via a network and provides a recording function, from the first communication device via the network. A recording reservation information receiving unit that receives a recording reservation request, a reservation recording unit that performs reservation recording based on the recording reservation information generated based on the recording reservation request, and the recording reservation information as a response to the recording reservation request And a registration unit that transmits the recording reservation information to the first communication device.

ADVANTAGE OF THE INVENTION According to this invention, when there is a high possibility that the apparatus which set the recording reservation cannot perform reservation recording, the communication apparatus which can perform the said reservation recording can be provided.

  The communication apparatus of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a configuration of a communication system in which a recording confirmation apparatus that is Embodiment 1 of a communication apparatus of the present invention is used. The communication system 1 includes recording devices 12 and 13 having a function of receiving broadcast waves and recording, and a recording confirmation device 13. Note that the recording apparatuses 11 and 12 and the recording confirmation apparatus 13 are respectively TCP (Transmission Control Prot
ocol) / IP (Internet Protocol).

Here, the recording devices 11 and 12 are, for example, DVDs (Digital Versatile).
Disk) recorder and HDD (Hard Disk Drive) recorder. The network 14 is, for example, a LAN (Local Area Network).

The recording confirmation device 13 has a function of storing all recording reservation information set in the recording device 11 and the recording device 12 in a database. Furthermore, the recording confirmation device 13 transmits a confirmation request for confirming whether or not recording can be executed before the recording start time to the recording device for which the recording reservation is set based on the recording reservation information stored in the database. Have

Here, the recording devices 11 and 12 and the recording confirmation device 13 are AV (Audio / Visual) devices corresponding to UPnP, respectively. UPnP is UPnP for AV equipment
A specification called AV Architecture is defined. This UPnP AV
In Architecture, the basic configuration of the network is the device (Device
), Service (Service), Control Point (Control Point)
) Is defined. A device is a device that supports UPnP AV, and a service is a minimum unit that represents a function provided by the device. Each device is a controlled device having at least one service. The control point controls and uses services that the device has. A single device can have a plurality of device functions, and a device in which a control point and a device are integrated can be considered.

In UPnP AV Architecture, UPnP Media Server Device is implemented as a server device that implements controlled functions and provides content data.
e (hereinafter also referred to as MSD) is defined, but in the communication system 1, the recording devices 11 and 12 function as the MSD. The recording apparatuses 11 and 12 of this embodiment, which are MSDs, are SRS (Scheduled Recording) which is a service that provides a reserved recording function.
Service). Note that SRS is defined in UPnP AV v2 and later.

Hereinafter, the recording reservation setting process will be described by taking as an example a process in which the recording apparatus 12 that implements the control point sets a recording reservation for the recording apparatus 11 that provides the SRS, unless otherwise specified. However, the control point may be mounted on the recording confirmation device 13, and the recording device 11 or the recording confirmation device 13 that implements the control point for the SRS provided by the recording device 12 sets the recording reservation. The same processing is also performed.

Next, the configuration of the recording apparatus 11 will be described with reference to FIG. FIG. 2 is a diagram illustrating a configuration of the recording device 11.
The recording device 11 includes a communication I / F unit 201, a recording reservation information generation unit 202, a recording reservation information database 203, a recording reservation information registration unit 204, and a reservation recording unit 205.

The communication I / F unit 201 is a communication interface for communicating with the recording device 12 and the recording confirmation device 13 via the network 14. The communication I / F unit 201 receives a CreateRecordSchedul that is a recording reservation request from the recording device 12 that is a control point.
An e-action is received and a response is transmitted. Further, the communication I / F unit 201 transmits the recording reservation information generated to the recording confirmation device 13, and receives a confirmation request as to whether or not recording can be executed from the recording confirmation device 13 and transmits a response to the confirmation request.

The recording reservation information generating unit 202 has a function of generating recording reservation information based on a recording reservation request received from the recording device 12 received by the communication I / F unit 201. FIG. 3 shows an example of recording reservation information generated by the recording reservation information generating unit 202.

In SRS, six types of recording reservation formats (recordSchedule class) are defined in total, and the recording reservation information is XML (Extensible Markup Lan).
guage) format. FIG. 3 shows the manual class (OBJECT.RECORD).
DSCHEDULE. DIRECT. MANUAL class recording reservation information (rec)
ordSchedule object). In the manual class, the recording start time (scheduledStartDateTime) and the recording time (schedule)
dDuration), channel (Scheduled Channel ID), etc. are specified, but all of these pieces of information are XML (Extensible Markup Language).
age). In addition, in the example of FIG. 3, a title (title), a recording target medium (recordDestination), and in the example of FIG.
ce) 1 is Hard Disk and priority 2 is DVD Recorder)
Etc. are described.

Furthermore, the recording reservation information in FIG. 3 includes a MAC (Media A) in a recordInformation element that is identification information 31 for identifying a recording apparatus for which recording reservation is set.
ccess Control) address is described. The recording confirmation device 13 is the MA
By referring to the C address, it is possible to confirm which recording apparatus the recording reservation information is set to the SRS of the recording apparatus.

In the example of FIG. 3, the MAC address is used as information for describing the recording reservation information, but the present invention is not limited to this. For example, an IP address uniquely given to each device on the network 14, a UUID uniquely given to each UPnP device on the network 14, or a character string such as a device name uniquely assigned to each device It may be.

Further, in the example of FIG. 3, the identification information 31 for the recording device is set to recordInformation.
Although described as an n element, the present invention is not limited to this. For example, recordDest
Identification information may be added to the character string in the ination element.

When the recording reservation information generating unit 202 generates the recording reservation information as shown in FIG. 3, it registers it in the recording reservation information database 203. The recording reservation information database 203 is mounted on a storage medium such as a memory or HDD (Hard Disk Drive).

RecordSch which is recording reservation information registered in the recording reservation information database 203
Based on the “edule” object, the scheduled recording unit 205 is the recordTas that is the execution subject.
A k object (recording execution information) is generated, and reserved recording is executed based on the k object.

When the recording reservation information is registered in the recording reservation information database 203, the recording reservation information generation unit 202 generates a response to the recording reservation request (CreateRecordSchedule action) and transmits the response from the communication I / F unit 201 to the recording device 12. At this time, the response includes the recording reservation information shown in FIG. 3 registered in the recording reservation information database 203 and the object ID of the generated recording reservation information (“manual 001” in the example of FIG. 3).

Furthermore, the recording reservation information generation unit 202 instructs the recording reservation information registration unit 204 to register the recording reservation information in the recording confirmation device 13. The recording reservation information registration unit 204 transmits the recording reservation information illustrated in the example of FIG. 3 registered in the recording reservation information database 203 by the recording reservation information generation unit 202 to the recording confirmation device 13. Thereby, the recording confirmation device 13 can know the recording reservation set in the recording device 11.

Next, the configuration of the recording confirmation apparatus 13 will be described with reference to FIG. FIG. 4 is a diagram showing a configuration of the recording confirmation device 13.
The recording confirmation apparatus 13 includes a communication I / F unit 301, a recording reservation information registration unit 302, a recording reservation information database 303, a recording execution confirmation unit 304, a recording reservation setting unit 305, a reserved recording unit 306, and a notification. Part 307.

Although the recording confirmation apparatus 13 of the present embodiment will be described below as having a scheduled recording unit 306 and having a recording function, the present invention is not limited to this, and the recording function is not necessarily required.

The communication I / F unit 301 is a communication interface for communicating with the recording apparatuses 11 and 12 via the network 14. The communication I / F unit 301 receives the recording reservation information of the recording reservation set in the recording devices 11 and 12, and transmits a confirmation request as to whether or not the reservation recording can be executed.

The recording reservation information registration unit 302 associates the recording reservation information shown in the example of FIG. 3 received from the recording apparatuses 11 and 12 received by the communication I / F unit 301 with the recording apparatus and records the recording reservation information database 303. Register with. Thus, the recording reservation information database 303 stores all the recording reservation information set in the recording apparatuses 11 and 12 that provide the SRS on the network 14 in principle. The recording reservation information database 303 is mounted on a storage medium such as a memory or HDD (Hard Disk Drive).

The recording execution confirmation unit 304 is based on the recording reservation information registered in the recording reservation information database 303, and the recording apparatus (in this case, the recording apparatus 11) in which the recording reservation information is set a predetermined time before the recording start time or the like. ) Transmits a confirmation request from the communication I / F unit 301 to confirm whether or not the recording can be executed. Note that it is possible to confirm which recording apparatus is the recording apparatus to which the recording reservation information is set by referring to the identification information 31.

For example, if the recording device 11 is a portable device and is not connected to the network 14 and there is no response to the confirmation request, or if a response indicating that recording is not possible is received from the recording device 11, the recording device 11 It can be determined that recording with is not possible. When the recording execution confirmation unit 304 determines that recording by the recording device 11 is not possible, the recording reservation setting unit 30 informs that effect.
5 is notified.

When the recording reservation setting unit 305 receives a notification indicating that recording is not possible from the recording execution confirmation unit 304,
Based on the recording reservation information registered in the recording reservation information database 303, the recording reservation is set in the reserved recording unit 306 or other recording device (here, the recording device 12) that the device itself has. As a result, even if the recording device 11 cannot execute the recording reservation, the recording confirmation device 13 or the recording device 12 executes the recording reservation instead.
The omission of recording can be avoided.

When the notification unit 307 receives a notification indicating that recording is not possible from the recording execution confirmation unit 304, the notification unit 307 reserves initial recording reservation for a portable device such as a mobile phone owned by the user or a device on the network 14 used by the user. A warning mail indicating that recording cannot be performed by the set recording apparatus 11 is transmitted. The warning method is not limited to e-mail, and the user may be warned using a warning sound such as a buzzer or a message display on the screen.

When setting a recording reservation instead of the recording device 12, the recording reservation information database 3
Clear, which is a recording reservation request based on the reservation recording information shown in FIG.
By sending a teRecordSchedule action to the recording device 11, a recording reservation can be set in the recording device 12.

Hereinafter, the processing flow of the recording device 11 and the recording confirmation device 13 will be described. FIG. 5 is a diagram showing a flow of processing at the time of recording reservation setting by the recording apparatus 11.
The recording device 11 receives CreateRecordSc, which is a recording reservation request from the recording device 12.
When the hedule action is received by the communication I / F unit 201 (Yes in S501), the recording reservation information generating unit 202 generates the recording reservation information illustrated in FIG. 3 and registers it in the recording reservation information database 203 (S502). .

When the recording reservation information is successfully generated (Yes in S503), the recording reservation information generation unit 20
2 transmits the generated recording reservation information and its object ID as a response to the recording reservation request (S504), and the recording reservation information registration unit 204 transmits the registered recording reservation information to the recording confirmation apparatus 13 (S505). ).

If generation of recording reservation information by the recording reservation information generation unit 202 or registration in the recording reservation information database 203 fails (No in S503), a response to a recording reservation request indicating failure is transmitted ( S506).

The processing of the recording confirmation apparatus 13 relating to the recording reservation information registration will be described with reference to FIG. FIG. 6 is a flowchart showing a flow of processing relating to registration of recording reservation information.

When the communication I / F unit 301 receives the recording reservation information in which the recording reservation is set in the recording device 11 (Yes in S601), the recording reservation information registration unit 302 stores the recording reservation information in the recording reservation information database 303. The recording reservation information is registered in association with the information of the recording device 11 in which the recording reservation information is set (S602).

Next, a process in which the recording confirmation device 13 confirms whether or not it can be executed based on the recording reservation information registered in the recording reservation information database 303 will be described with reference to FIGS. FIG. 7 is a diagram showing a flow of processing for resetting a recording reservation based on whether or not recording can be executed in the communication system 1.

First, the recording confirmation device 13 detects from the recording reservation information registered in the recording reservation information database 303 that it is a predetermined time before the start time of the recording reservation (S701). Hereinafter, the recording reservation information will be described as recording reservation information related to the recording reservation set in the recording apparatus 11.

The recording confirmation apparatus 13 confirms the recording apparatus 11 for which the recording reservation is set by confirming the identification information 31 of the recording reservation information. Then, a confirmation request for inquiring whether recording can be executed for the recording reservation information is transmitted to the recording apparatus 11 (S702). When receiving the confirmation request, the recording apparatus 11 responds whether or not recording can be executed (S703). At this time, if the recording apparatus 11 is not connected to the network 14, it is naturally impossible to respond.

The recording confirmation device 13 is based on the response result to the reservation recording confirmation request.
Whether or not recording of 1 is possible is determined (S704). As described above, when there is no response to the recording confirmation request, or when the response to the recording confirmation request is a response indicating that recording is not possible,
It can be determined that recording is impossible.

If the recording apparatus 11 is capable of recording, the recording apparatus 11 may record the recording apparatus 11 as it is. However, if the recording apparatus 11 is not capable of recording, the recording apparatus 11 can record it on its own reserved recording unit 306 or another recording apparatus 12. To set the recording reservation. FIG. 7 shows processing when a recording reservation is set in the recording device 12.

The recording reservation setting unit 305 of the recording confirmation apparatus 13 requests the recording apparatus 12 to make a recording reservation for the same program as the recording reservation set in the recording apparatus 11 from the recording reservation information registered in the recording reservation information database 303. The CreateRecordSchedule action to be transmitted is transmitted to the recording device 12 (S705). Receiving the recording reservation request, the recording device 12 transmits the setting result of the recording reservation based on the recording reservation as a response (S706).

FIG. 8 is a diagram showing a flow of processing for inquiring whether the recording reservation of the recording confirmation apparatus 13 can be executed.
When it is detected that the predetermined time of the recording start time based on the recording reservation information registered in the recording reservation information database 303 is reached (Yes in S801), the recording apparatus (here, the recording is set) with the recording reservation based on the recording reservation information. Recording execution confirmation unit 30
4 transmits a confirmation request for inquiring whether or not the reserved recording can be executed (S802).
. The recording execution confirmation unit 304 determines whether a response to the confirmation request has been received (S8).
03) If the response cannot be received, it is not connected to the network 14 and may have been taken out to the outside. Even when a response to the confirmation request is received from the recording device 11 (Yes in S803), a response indicating that the scheduled recording cannot be executed may be received due to, for example, the disconnection of the antenna line. (S804).

As described above, when there is a high probability that the recording apparatus 11 cannot execute the reserved recording (S803).
No of S, No of S804), the recording reservation setting unit 305 sets a recording reservation with the same contents as the recording reservation set in the recording apparatus 11 for other devices (S805). As described above, this may be set in the reserved recording unit 306 of the own device, or a recording reservation request may be transmitted to the recording device 12.

If a response indicating that recording is possible is received from the recording device 11 (Yes in S804).
Then, the recording reservation is left to the recording device 11 as it is, and the processing is ended.
As described above, according to the present embodiment, when a recording reservation is set in a recording device on the network, it is confirmed whether or not the recording reservation can be executed, and if there is a high probability that the recording cannot be performed. Sets a recording reservation in the own device or another recording device. As a result, it is possible to increase the certainty of execution of reserved recording.

In addition, if the self-recording unit 306 that sets a recording reservation instead is provided in the own device, even if the recording device 12 that is an alternative to the recording device 11 does not exist on the network 14, the reserved recording can be performed. Thus, the certainty of execution of reserved recording can be further increased.

When the recording device 12 different from the recording confirmation device 13 substitutes the reserved recording, the recording confirmation device 13 itself does not need to have the SRS function and can be implemented with a simple configuration.

In this embodiment, the recording confirmation device 13 transmits a confirmation request for inquiring whether or not recording can be executed a predetermined time before the recording start time. If the confirmation request is transmitted at the same time as the recording start time, it may be too late to reset the reserved recording, but such an inquiry can be avoided by making an inquiry before a predetermined time. Note that the time for transmitting the confirmation request can be, for example, about 5 to 10 minutes before the recording start time. This is because if the inquiry is made before the recording start time, it may be taken outside before the recording start time.

The figure which shows the structure of the communication system which concerns on Example 1 of this invention. 1 is a diagram illustrating a configuration example of a recording apparatus according to Embodiment 1 of the present invention. The figure which shows the example of the video recording reservation information stored in the video recording apparatus and video recording confirmation apparatus which concern on Example 1 of this invention. The figure which shows the structural example of the video recording confirmation apparatus which concerns on Example 1 of this invention. The figure which shows the flow of a process at the time of the recording reservation setting of the recording device which concerns on Example 1 of this invention. The figure which shows the flow of the process which registers the recording reservation information of the recording confirmation apparatus which concerns on Example 1 of this invention. The figure which shows the flow of the process which concerns on the inquiry of the recording execution possibility of the communication system which concerns on Example 1 of this invention. The figure which shows the flow of the process which concerns on the inquiry whether the recording reservation of the communication system which concerns on Example 1 of this invention is executable.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Communication system 11, 12 ... Recording apparatus 13 ... Recording confirmation apparatus 14 ... Network 31 ... Identification information 201 ... Communication / F part 202 ... Recording reservation information generation part 203 Recording reservation information database 204 Recording reservation information registration unit 205 Reserved recording unit 301 Communication I / F unit 302 Recording reservation information registration unit 303 Recording reservation information database 304 ... Recording execution confirmation unit 305 ... Recording reservation setting unit 306 ... Reserved recording unit 307 ... Notification unit

Claims (10)

A communication unit that communicates via a network with a recording device that provides a recording function;
A storage unit for storing recording reservation information of a recording reservation set in the recording device;
A recording execution confirmation unit that transmits from the communication unit a confirmation request for confirming whether or not the recording apparatus can perform recording based on the recording reservation information;
A communication reservation setting unit configured to set a recording reservation based on the recording reservation information in another recording device different from the recording device in response to a response to the confirmation request transmitted by the recording execution confirmation unit; apparatus. When the recording reservation setting unit does not respond to the confirmation request from the recording execution confirmation unit or receives a response indicating that recording is not possible, the recording reservation by the recording reservation information is different from the recording device. The communication apparatus according to claim 1, wherein the communication apparatus is set to a recording apparatus. The communication apparatus according to claim 1, wherein the recording execution confirmation unit transmits the confirmation request from the communication unit a predetermined time before a recording start time related to the recording reservation information. The communication apparatus according to claim 1, wherein the recording reservation setting unit transmits a recording reservation request based on the recording reservation information to the other recording apparatus different from the recording apparatus. The communication apparatus according to claim 1, wherein the recording reservation setting unit sets a recording reservation in the other recording apparatus incorporated therein. When there is no response to the confirmation request from the recording execution confirmation unit, or when a response indicating that recording is not possible is received, the information processing device further comprises a notification unit that notifies that recording by the recording device is impossible The communication device according to claim 1. A communication unit that communicates via a network with a recording device that provides UPnP SRS;
A storage unit for storing record Schedule set in the recording device;
A recording execution confirmation unit that transmits a confirmation request for confirming whether or not the recording apparatus can execute recording based on the record Schedule from the communication unit;
In response to a response to the confirmation request transmitted by the recording execution confirmation unit, the recordSc
A communication apparatus comprising: a recording reservation setting unit that transmits a CreateRecordSchedule action based on a schedule to another recording apparatus different from the recording apparatus. The recording reservation setting unit performs a CreateRecordSchedule action based on the recordSchedule action different from that of the recording device when there is no response to the confirmation request transmitted by the recording execution confirmation unit or when a response indicating that recording is not possible is received. The communication apparatus according to claim 6, wherein the communication apparatus transmits to a recording apparatus. The communication apparatus according to claim 6, wherein the recording execution confirmation unit transmits the confirmation request from the communication unit a predetermined time before the recording start time related to the record Schedule. A recording device that communicates with a first communication device and a second communication device via a network and provides a recording function,
A recording reservation information receiving unit for receiving a recording reservation request from the first communication device via a network;
A reserved recording unit that performs reserved recording based on the recording reservation information generated based on the recording reservation request;
A response unit that transmits the recording reservation information to the first communication device as a response to the recording reservation request;
A recording apparatus comprising: a registration unit that transmits the recording reservation information to the first communication apparatus.

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