JP2006085622A - Recording device and backup method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording device and a backup method carrying out backup storage considering a recording status of each recording device without preparing a large-capacity memory dedicated to backup. <P>SOLUTION: When backup of a broadcast program recorded in an HDD is directed by a user, an image recording/reproducing apparatus 1 in a backup source acquires substantial free areas of respective built-in HDDs from other image recording/reproducing apparatuses 2, 3 and 4 connected to a LAN 20. Next, an apparatus executing backup is extracted according to the respective acquired substantial free areas, and a reservation time (or a backup allowable time) is obtained. A backup execution time and an image recording/reproducing apparatus used as a backup destination are determined a image recording reservation time of itself and time information obtained from the respective apparatuses, and the backup execution time is annunciated to the image recording/reproducing apparatus determined as the backup destination, and a backup image-recording reservation is registered. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a recording apparatus and a backup method for backing up and saving information recorded in a plurality of recording apparatuses connected to each other via a network and restoring the backed up information.

In recent years, in a plurality of data processing apparatuses that construct a network system, a system that conserves data recorded in each data processing apparatus without preparing a large-capacity memory dedicated for backup has been considered. For example, in such a system comprising a plurality of data processing devices connected to a network, if any data processing device is instructed to execute a backup process, the remaining capacity / memory of each data processing device A system for determining a backup destination based on the amount of use and backing up data has been considered (for example, see Patent Document 1).
JP-A-10-124364

  However, in the conventional apparatus, the remaining capacity / usage amount of the memory, which is an index for determining the backup source, is a simple free capacity / usage capacity when notifying the data processing apparatus as the host. Future recording conditions such as video recording reservations and memory usage trends are not taken into account at all, and the amount of memory used by the data processing device that is the backup destination is under pressure as a result of backup, and future recording is limited there is a possibility. In addition, no consideration is given to a method for restoring backup data when the memory of the backup source data processor crashes.

  The present invention has been made in view of the above points, and provides a recording apparatus and a backup method capable of backup storage in consideration of the recording status of each recording apparatus without preparing a large-capacity memory dedicated to backup. Objective.

  In order to achieve the above object, a recording apparatus of the present invention is a recording apparatus connected to another recording apparatus having a first recording unit in which information relating to video or audio is recorded, by a wired or wireless network connection. When the second recording unit in which information related to sound is recorded and backup storage of at least a part of the information recorded in the second recording unit is instructed, the other recording device gives the first recording unit. An acquisition unit that acquires the free space of the recording unit and time information that the recording operation of the other recording device is possible or impossible, and the second instruction that is instructed based on the acquired free space and time information. A recording apparatus that backs up information in the recording unit, a determination unit that determines the execution time thereof, and notifies the recording apparatus determined by the determination unit of the determined execution time information. The recording device determined by the determination means at the execution time determined by the determination means and the determination means while being held in the second recording section while being held in the second recording section. Transmitting means for transmitting at least a part of information.

  In order to achieve the above object, a recording apparatus according to the present invention includes a first recording apparatus having a first recording section on which information is recorded, and a second recording section having a second recording section on which information is recorded. In the recording device connected to the device via a wired or wireless network, the first information related to video or audio and the second information corresponding to the backup of the information recorded in the first recording unit are recorded. The third recording unit, determination means for determining whether the free space in the third recording unit is less than a predetermined value set in advance, and when the determination unit determines that the free space is less than the predetermined value, An acquisition unit that acquires the free space of the second recording unit from the second recording device connected to a device other than the first recording device, and the third storage unit based on the free space acquired by the acquisition unit. Recorded in the recording section of And a backup destination determination unit that determines a recording device that backs up the information, and at least a part of the second information recorded in the third recording unit is transmitted to the recording device that is determined by the backup destination determination unit Transmitting means.

  In order to achieve the above object, a recording apparatus according to the present invention includes a first recording apparatus having a first recording section on which information is recorded and a second recording apparatus having a second recording section on which information is recorded. And a recording device connected to the network by wire or wireless, corresponding to a backup of the first information related to video or audio that can be viewed by the user on the recording device, and the information recorded in the first storage unit, The third recording unit in which the second information in a state in which the user cannot view the recording device is recorded, and the determination for determining whether or not the free space in the third recording unit is less than a preset specified value And when the free space is determined to be equal to or less than a predetermined value by the determining means, the free space of the second recording unit from the second recording device connected to other than the first recording device, and the first Of 2 recording devices An acquisition unit that acquires time information that can or cannot be recorded, and a backup of the second information recorded in the third recording unit based on the free space and time information acquired by the acquisition unit A recording device for determining the execution time, a determination unit for determining the execution time thereof, a notification unit for notifying the recording device determined by the determination unit of the determined execution time information, and an execution time determined by the determination unit And transmitting means for transmitting at least part of the second information recorded in the third recording section to the recording apparatus determined by the determining means.

  In order to achieve the above object, a recording apparatus of the present invention includes a first recording apparatus having a first recording section in which information relating to video or audio is recorded, and a second recording section connected via a wired or wireless network. When the restoration of information recorded in the first recording device is instructed, at least a part of the information recorded in the first recording unit by the second recording unit is A determination unit that determines whether or not the recording device is stored in a state in which the user cannot view, and if the determination unit determines that the storage is performed, the second recording unit stores the state in a state that the user cannot view. And changing means for changing at least part of the information recorded in the first recording unit to a state in which the information can be viewed by the user.

  In order to achieve the above object, the backup method of the present invention is connected to another recording device having a first recording unit in which information relating to video or audio is recorded, via a wired or wireless network, so that information relating to video or audio is stored. In the backup method in the recording apparatus having the recorded second recording unit, when the backup storage of at least a part of the information recorded in the second recording unit is instructed, the other recording apparatus gives the first Acquiring the free capacity of the recording unit and the time information in which the recording operation of the other recording device is enabled or impossible, and the second instructed based on the acquired free capacity and time information. The recording apparatus for backing up the information of the recording unit and the step of determining the execution time thereof, and the above-described determination for the determined recording apparatus Notification of line time information, and at the determined execution time, with respect to the determined recording device, at least one of the instructed second recording units while being held in the second recording unit Transmitting a part of the information.

  To achieve the above object, the backup method of the present invention includes a first recording device having a first recording unit in which information is recorded and a second recording device having a second recording unit in which information is recorded. And a third recording unit in which first information about video or audio and second information corresponding to a backup of the information recorded in the first recording unit are recorded. In the backup method in the third recording apparatus having the above, a step of determining whether or not the free space in the third storage unit is less than a preset specified value, and this determination step determines that the free space is equal to or less than the specified value. Then, the step of acquiring the free space of the second recording unit from the second recording device connected to other than the first recording device, and based on the acquired free space Determining a recording device that backs up the second information stored in the third storage unit, and second information stored in the third storage unit for the determined recording device. Transmitting at least a part of.

  In order to achieve the above object, a backup method of the present invention includes a second recording unit that is connected to a first recording device having a first recording unit in which information about video or audio is recorded, via a wired or wireless network connection. In the backup method in the second recording device, the information recorded in the first recording unit by the second recording unit is instructed to restore the information recorded in the first recording device. Determining whether or not at least a part of the data is stored in a state that the user cannot view in the second recording device, and determining that the data is stored by the determination step, the second recording unit Changing at least a part of the information recorded in the first recording unit stored in a state in which the user cannot view the content to a state in which the user can view the information. And it features.

  According to the present invention, backup storage considering the recording status of each recording device can be performed without preparing a large-capacity memory dedicated to backup.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an example of the overall configuration of a recording / playback system composed of recording / playback devices 1 to 4 as recording devices according to this embodiment.

  As shown in FIG. 1, the recording / playback system includes recording / playback devices 1 to 4 each having a built-in HDD (Hard Disc Drive) as a recording unit in each of a plurality of rooms A to D. 1 to 4 are connected via the home LAN 20 and are configured to be able to back up each other.

  FIG. 2 is a block diagram showing an embodiment of the main configuration of the recording / playback device 1 (2, 3, 4). The recording / playback device 1 (2, 3, 4) includes a tuner 11, a video / audio encoding unit 12, a hard disk unit (hereinafter referred to as HDD) 13, a video / audio decoding unit 14, and a CPU (Central Processing). A unit 15, a ROM (Read Only Memory) 16, a RAM (Random Access Memory) 17, a remote control transmission / reception unit 18, a communication processing unit 19, and the like are connected to each other via a control bus.

  The recording / playback device 1 (2, 3, 4) receives a video signal and an audio signal from the outside via the tuner 11, and supplies them to the video / audio encoding unit 12. The video / audio encoding unit 12 encodes the supplied video / audio signal, supplies it to the HDD 13, and records it on the HDD 13.

  The recording / playback device 1 (2, 3, 4) reads and decodes information related to video and audio recorded in the HDD 13 by the video / audio decoding unit 14, and connects the decoded video and audio signals to the subsequent stage. Provided to the display unit 21 such as the CRT and the speaker unit 22 for reproduction. The recording / playback device 1 (2, 3, 4) also transmits / receives video signals and audio signals recorded in the built-in HDD 13 to / from other recording / playback devices via the communication processing unit 19 and the home LAN 20. be able to.

  The CPU 15 controls the processing operation of the entire recording / playback device. The ROM 16 stores a program executed by the CPU 15 and the like. The RAM 17 is a storage unit used for work when the CPU 15 performs processing. The remote control transmission / reception unit 18 receives the instruction information transmitted from the remote controller 23 operated by the user and notifies the CPU 15 via the control bus.

  With such a configuration, the recording / playback device 1 (2, 3, 4) according to the present embodiment is provided for backup without using a server function for collectively managing the entire system by a method described later. Without having a large-capacity storage unit, the recording contents can be backed up and stored between recording / playback devices.

  Along with this backup storage function, each recording / playback device 1, 2, 3, 4 is not used for backup storage in advance so that using a part of the built-in HDD 13 for backup storage does not affect normal recording. A recording capacity (hereinafter referred to as a prescribed value) is set. An initial value of this specified value is determined in advance, and can be changed to an arbitrary value by the method shown in FIG.

  FIG. 3 is a flowchart showing processing for setting (changing) a prescribed value of the memory in the HDD 13 built in each of the recording / playback devices 1 to 4. As shown in FIG. 3, for example, when the CPU 15 of the recording / playback apparatus 3 detects that the user has selected the HDD default value setting menu with the remote controller 23 or the like via the remote control transmission / reception unit 18 (step ST1), the display is performed. An input screen for the user to input a specified value is displayed on the unit 21, and the user is prompted to input a numerical value (step ST2). When an arbitrary numerical value (for example, “30”) is input to the input screen of ST2, the CPU 15 registers the input numerical value “30” as a specified value (step ST3).

  In this embodiment, an initial value 10 GB (GIGA BYTE) is set in the recording / playback devices 1 and 4, a specified value 20 GB is set by the user in the recording / playback device 2, and a specified value by the user in the recording / playback device 3. Assume that 20 GB is set. In this way, since the recording capacity that is not used for backup storage in advance can be arbitrarily set according to the usage status of the user as a specified value, the degree of influence of backup recording on normal recording can be kept low. In other words, the number of executions of backup title movement processing, which will be described later, is kept low, and the stability of the system is kept high.

  Next, processing relating to backup setting of recording information between recording / playback apparatuses in the recording / playback system will be described with reference to FIGS. FIG. 4 is a flowchart showing processing of the entire recording / playback system.

  As shown in FIG. 4, when backup instruction information of a broadcast program (hereinafter referred to as a title) recorded in the built-in HDD is input by the user (step ST11), the recording / playback apparatus instructed to input is the backup source. As a result, communication is performed with all other recording / playback devices connected to the home LAN 20, and profile information including basic information (for example, identification information, HDD remaining capacity, etc.) regarding each recording / playback device is acquired (step ST12). ).

  Based on the acquired profile information, the backup source recording / playback device executes further communication as necessary, determines the backup destination video recording / playback device and the backup execution time (step ST13), and records the backup destination. Notify the playback device of the backup execution time. In response to this notification, the backup execution time is set in the recording / playback device at the backup destination, and the backup setting process is terminated (step ST14).

  Next, FIG. 5 and FIG. 6 are flowcharts showing processing relating to backup setting in the recording / playback device as the backup source.

  In this embodiment, for example, on the recorded title list screen shown in FIG. 7, the mark “B” 30 is a backup setting mark indicating that the backup setting process shown in FIG. 4 has been performed. As a result, the user can recognize the title information that has been set to be backed up (will be backed up).

  The user selects the title information of “title 1” without the backup setting mark “B” 30 from the recorded title list screen shown in FIG. 7 and inputs the backup setting instruction information. Suppose that Then, as shown in FIG. 5, the CPU 15 of the recording / playback device that has received the backup setting instruction information from the user (step ST21), as the backup source, all other recording / playback devices connected to the home LAN 20 In response to this, a profile information transmission request is transmitted via the communication processing unit 19 (step ST22).

  The CPU 15 of the recording / playback device as the backup source, from all other recording / playback devices connected to the home LAN 20 via the communication processing unit 19, for example, as shown in FIG. 42, and profile information including HDD remaining amount information 43, which will be described later, are stored in the RAM 17 (step ST23).

  Then, the CPU 15 of the recording / playback device as the backup source instructs the title instructed to the user based on the HDD remaining amount information 43 (corresponding to a substantial free space described later) of each profile information shown in FIG. All recording / playback devices capable of backing up 1 are extracted as backup destination candidates (step ST24).

  When it is determined in ST24 that there is no recording / playback device that can be backed up (No in step ST25), the backup recording / playback device CPU15 displays a notification to the user that backup cannot be performed on the display unit 21. And a series of backup setting processes are terminated (step ST26).

  When the backup destination candidates are extracted in ST24 (Yes in step ST25), the CPU 15 of the backup source recording / playback device proceeds to FIG. 6, and all of the extracted recording / playback devices are connected via the communication processing unit 19. On the other hand, a transmission request for the reserved time (or time that can be backed up) is transmitted (step ST27).

  When the CPU 15 of the recording / playback device as the backup source receives reservation time information (or backup available time) from each recording / playback device extracted as a candidate (step ST28), the CPU 15 receives the recording reservation time set for itself. The recording reservation time (or backup possible time) of each recording / playback device is compared. As a result of this comparison, the latest time zone in which the candidate device is operable and does not overlap with its reserved time is determined as the backup execution time, and the corresponding recording / playback device is determined as the backup destination (step ST29).

  In ST29, in the present embodiment, when there is no execution time within a predetermined period (for example, within one week) (Yes in step ST30), the CPU 15 of the recording / playback device as the backup source performs backup. It is determined that it is impossible, and control is performed so as to notify the user that backup cannot be performed, and the series of backup setting processes is terminated (step ST26).

  When the backup destination and the backup execution time are determined in ST29, the CPU 15 of the backup source recording / playback device sets the backup execution time for the recording / playback device determined as the backup destination via the communication processing unit 19. Notice. Then, as shown in FIG. 10, when the backup setting mark “B” 30 is changed to be displayed at a position corresponding to “title 1” on the recorded title list screen, the series of backup setting processes is terminated (step ST31).

  Next, FIG. 11 is a flowchart showing processing relating to backup setting in a recording / playback device other than the backup source.

  When the CPU 15 of the recording / playback device connected to the home LAN 20 receives the profile transmission request via the communication processing unit 19 (step ST41), as shown in FIG. 12, the usage status of the built-in HDD 13 (free space capacity 33). ) Next, from the free capacity 33, the capacity used in the currently set reservation information and the specified capacity 34 are subtracted to calculate a substantial free capacity 35 (step ST42). Then, profile information including the calculated substantial free space information as the remaining amount of HDD is created, and the profile information is transmitted to the recording / playback device of the backup source (that issued the profile transmission request), and enters a standby state. (Step ST43).

  In such a standby state, when a reservation time request (or a backup time request) is received via the communication processing unit 19 (Yes in step ST44), the CPU 15 of the received recording / playback device is registered in the RAM 17. Reservation time information (or time information that can be backed up) is transmitted to enter a standby state (step ST45).

  Further, in such a standby state, when a notification to register the backup execution time and the backup reservation is received (Yes in step ST46), the received CPU 15 of the recording / playback device executes backup storage at the received execution time. The backup recording reservation is registered in the RAM 17 so as to enter a standby state (step ST47).

  Next, backup processing executed between recording / playback devices in the recording / playback system according to the backup recording reservation registered by the backup setting processing described above will be described with reference to FIG. FIG. 13 is a flowchart showing backup processing in the recording / playback system.

  As shown in FIG. 13, if it is determined that the backup execution time has come in either the backup destination or the backup source recording / playback device (Yes in step ST51), the backup source recording / playback device changes to the backup destination recording / playback device. The title information to be backed up is transferred and is backed up and saved in the HDD 13 of the recording / playback device as the backup destination (step ST52).

  Here, for example, when the title 1 shown in FIG. 11 is backed up and saved in the recording / playback apparatus that normally records the title 4 shown in FIG. 14, the backup save is displayed in the recorded title list shown in FIG. In other words, the storage mode is such that the user does not recognize that the title 4 is backed up and stored in the recording / playback device. In other words, it is stored in a state in which the user cannot view it on the recording / playback device stored as a backup.

  FIG. 15 is a sequence diagram for explaining a series of backup setting processing and backup processing in the recording / playback system. In this embodiment, a case will be described in which the recording / playback device 1 is used as a backup source, and as a result, the recording / playback device 3 is selected as a backup destination.

  When the backup title is selected from the recorded title list screen shown in FIG. 7, the backup source recording / playback device 1 requests profile information from the other recording / playback devices 2, 3, 4 connected to the home LAN 20. Send. The recording / playback devices 2, 3, and 4 calculate the substantial free capacity of the built-in HDD 13 and transmit profile information including this to the recording / playback device 1.

  The recording / reproducing device 1 extracts the recording / reproducing devices 3 and 4 as candidates for devices that can be backed up based on each received substantial free space information, and transmits a request for a reservation time (or backup possible time). Each of the recording / reproducing devices 3 and 4 transmits the registered reserved time (or backup available time) to the recording / reproducing device 1.

  The recording / playback device 1 determines the backup execution time and the backup destination (here, the recording / playback device 3) from the received reserved time (or backup available time) and its own reservation time, and informs the recording / playback device 3 to that effect. Notify them. In response to this notification, the recording / reproducing device 3 registers the backup scheduled recording so that the backup recording is performed at the received backup execution time, and the series of backup setting processes is ended.

  When the backup start time comes, in FIG. 15, the recording / playback device 1 as the backup source detects the start time, and notifies the recording / playback device 3 as the backup destination that the backup transfer is started, Transfer backup title information. In the recording / playback device 3, the backup title is transferred to the internal HDD 13 so that the user cannot recognize it (viewed by the recording / playback device 3), and the backup processing is completed.

  In this way, in a system in which a plurality of recording devices are connected to the network, when backing up the recording contents of one recording device, the recording status of other recording devices is taken into consideration, based on the substantial free capacity. Thus, by determining the backup destination, it is possible to keep the influence of backup recording on normal recording low.

  Next, FIGS. 16 and 17 are flowcharts showing a modification of the backup setting process. Steps similar to those in the flowcharts shown in FIGS. 5, 6, and 11 are given the same numbers. In FIG. 5, FIG. 6 and FIG. 11, the recording / playback device at the backup source executes with the backup destination by making two transmission requests comprising a request for profile information and a request for a reservation time (or a time that can be backed up). Time is determined. On the other hand, in the modified example, as shown in FIG. 8B, profile information including a reserved time (or a backupable time) is created and transmitted (step ST47). Accordingly, in the modified example, since a transmission request is required only once, a simple backup setting process can be performed.

  As described above, by reducing the exchanges between the recording apparatuses at the time of backup setting, the processing time required for the backup setting can be shortened, and the load on the system due to the backup setting process can be reduced.

  Next, with reference to FIGS. 18 to 20, for example, when the free space of the built-in HDD 13 is reduced due to a recording instruction or the like by the user, and the title being backed up cannot be stored, it is stored. A title moving process for moving a backup title to another recording / playback device will be described.

  FIG. 18 is a flowchart showing the title moving process in the recording / playback device (backup destination) that stores the backup title related to another recording / playback device (backup source). In FIG. 18, the same steps as those in FIG. 18 and the subsequent processes are the same as those in FIG.

  As shown in FIG. 18, the CPU 15 of the recording / playback device as the backup destination, when the user instructs the new recording or the new recording reservation setting via the remote control transmission / reception unit 18, the remaining capacity (free capacity) of the built-in HDD 13. Is confirmed (step ST61). As a result of this confirmation, if it is determined that the remaining capacity of the HDD 13 is equal to or less than the specified value (Yes in step ST62), the CPU 15 via the communication processing unit 19 other than the backup source connected to the home LAN 20 A profile transmission request is transmitted to the recording / playback device (step ST63).

  When receiving the profile information from the recording / playback device other than the backup source (step ST23), the CPU 15 of the backup-destination recording / playback device is based on the HDD remaining amount information 43 (corresponding to the substantial free capacity) of the profile information. All the recording / playback devices that can back up the backup title to be moved are extracted (step ST24).

  If it is determined that there is no movable recording / playback device in ST24 or there is no moving time in ST29 shown in FIG. 6 (No in step ST25, Yes in ST30 in FIG. 6), the recording / playback device as a backup destination Notifies the backup source recording / playback device that the backup title is to be deleted (step ST64). Then, by starting normal recording separately designated by the user, the backup title is overwritten and erased (step ST65).

  Next, FIG. 19 is a flowchart showing the title moving process in the recording / playback apparatus other than the backup source and the backup destination.

  As shown in FIG. 19, when the recording / playback device as the backup source receives a notification to delete the title being backed up from another recording / playback device (step ST67), the backup setting is received from the received title setting information. The mark information is erased (step ST68). As a result, the backup setting mark “B” is removed from the “title 1” display portion of the recorded title list shown in FIG. 10 and changed to the recorded title list as shown in FIG. 7, and for example, “title 1” is backed up by the user. Make it possible to recognize that this has not been done.

  FIG. 20 is a sequence diagram for explaining a series of title movement processing in the recording / playback system. In this embodiment, the recording / playback device 1 is used as a backup source, and the recording / playback device 2 storing the backup title of the recording / playback device 1 becomes a backup destination. A case where the device 4 is selected will be described.

  When the recording / playback device 2 at the backup destination determines that the remaining capacity (free capacity) of the internal HDD 13 is equal to or less than the specified value, the profile is transferred to the recording / playback devices 3 and 4 other than the backup source connected to the home LAN 20. Send a send request. The recording / reproducing devices 3 and 4 calculate the substantial free capacity of the HDD 13 incorporated therein, and transmit profile information including this to the recording / reproducing device 1.

  The recording / reproducing device 2 extracts the recording / reproducing devices 3 and 4 as devices capable of moving the backup title on the basis of each received substantial free space, and transmits a request for a reservation time (or backup possible time). Each of the recording / reproducing devices 3 and 4 transmits the registered reservation time (or backup available time) to the recording / reproducing device 2.

  The recording / playback device 2 determines a backup execution time and a new backup destination (in this case, the recording / playback device 4) from the received reserved time (or backup available time) and its own reserved time. To notify the backup execution time. Then, the recording / playback apparatus 4 registers the backup scheduled recording so that the backup recording is performed at the received backup execution time, and the series of backup setting processes ends.

  When the backup start time comes, in FIG. 20, the recording / playback device 2 that is the backup destination detects the start time and notifies the recording / playback device 4 that is the new backup destination that the backup title is to be transferred. Transfer the backup title information. In the recording / playback device 4, the backup title is transferred to the built-in HDD 13 so that the user cannot recognize it (viewed by the recording / playback device 4), and the backup processing is completed.

  When the recording / playback device 2 determines that there is no movable recording / playback device, the recording / playback device 2 notifies the backup recording / playback device 1 that the backup title is to be deleted. Then, the backup title is overwritten and recorded (erased) by normal recording that is executed separately. The recording / playback device 1 deletes the backup mark information from the received title setting information.

  In this way, for example, when the free space in the built-in HDD 13 is reduced due to a recording instruction or the like by the user and the title being backed up cannot be stored, taking into account the recording status of other recording devices, By determining a new backup destination based on the actual free space, not only can the impact of backup recording on each recording device on normal recording be kept low, but also backup titles can be recorded on a single recording device. Instead of erasing directly according to the situation, it is possible to appropriately hold / erase in consideration of the recording status of the entire system, and the stability of the system is kept high.

  Next, referring to FIGS. 21 to 25, when the internal HDD 13 of a certain recording / playback device crashes and the recorded content of the HDD 13 cannot be read at all, another recording / playback device connected via the home LAN 20 is used. A title restoration process for restoring the backup title of the crashed HDD 13 will be described. FIG. 21 is a flowchart showing title restoration processing in the recording / playback system.

  As shown in FIG. 21, when the user inputs device information to be restored and its restoration instruction (step ST71), the recording / playback device instructed to input all the other recordings connected to the home LAN 20 Communication with the playback device is performed, and profile information including identification information about each recording / playback device, remaining HDD capacity, and the like is acquired (step ST72).

  The recording / playback device instructed to restore obtains a backup title relating to the recording / playback device to be restored from the recording / playback device that has responded with the profile information (step ST73), and the transferred backup title is a normal title that can be recognized by the user. Is recorded and saved (step ST74). If a backup title related to the recording / playback device to be restored is stored in the internal HDD 13 of the recording / playback device instructed to be restored, the backup title is changed to a normal title that can be viewed by the user (step ST75).

  Next, in the title restoration process shown in FIG. 21, FIG. 22 is a flowchart showing the title restoration process in the recording / reproducing device instructed to be restored by a device different from the recording / reproducing device in which the HDD 13 crashes. FIG. 23 is a flowchart showing title restoration processing in other recording / playback devices.

  As shown in FIG. 22, when the user selects a restoration menu from a menu screen (not shown) and inputs information about the restoration device (step ST81), the CPU 15 of the recording / playback device instructed to restore the home LAN 20 A profile information transmission request is transmitted to all the other recording / playback devices connected to (step ST82).

  Upon receiving the profile information from each recording / playback device (step ST83), the recording / playback device instructed to restore transmits a title request regarding the device to be restored selected by the user to the recording / playback device that has responded (step ST83). Step ST84). Then, the backup title is transferred from the recording / playback device backing up the title related to the recording / playback device to be restored, and the transferred title is recorded and saved as a normal title that can be recognized by the user (step ST85). When this transfer is completed successfully, response information indicating normal termination is transmitted to each recording / playback device, and a series of title restoration processing is terminated (step ST86).

  If a backup title related to the recording / playback device to be restored is stored in the internal HDD 13 of the recording / playback device instructed to be restored (Yes in step ST87), the backup title is changed to a normal title that can be recognized by the user. (Step ST88).

  Next, as shown in FIG. 23, when receiving the profile transmission request, the recording / playback device creates profile information and transmits it to the requested recording / playback device (step ST91). After that, when receiving the identification information of the restored device and the title transmission request (Yes in step ST92), the backup title related to the restored device stored in the internal HDD 13 is extracted and transmitted (transferred) to the requested recording / playback device. (Step ST93). When a response signal indicating normal termination is received, the transferred backup title is erased (or made erasable), and a series of title restoration processing is terminated (step ST93).

  FIG. 25 is a sequence diagram for explaining a series of flow of title restoration processing in the recording / reproducing system. In the present embodiment, a case will be described in which the HDD 13 built in the recording / reproducing device 3 has crashed, and the backup title related to the crashed recording / reproducing device 3 is restored from the recording / reproducing device 1.

  When the restoration menu is selected from the menu screen and information on the recording / reproducing device 3 is input as the restoring device, the recording / reproducing device 1 receives all the other recording / reproducing devices connected to the home LAN 20 except the recording / reproducing device 3. A profile information transmission request is transmitted to 2 and 4. The recording / reproducing devices 2 and 4 calculate the substantial free capacity of the HDD 13 incorporated therein, and transmit the profile information to the recording / reproducing device 1.

  The recording / playback device 1 instructs the recording / playback device 2 that has transmitted the profile information to transfer the backup title related to the identification information of the recording / playback device 3. The recording / playback device 2 confirms whether a backup title related to the recording / playback device 3 is stored in the built-in HDD 13, and if it is extracted, it is transferred to the recording / playback device 1. Send.

  When the backup title related to the recording / playback device 3 is transferred, the recording / playback device 1 records and saves the transferred title as a normal title that can be recognized by the user. Information is transmitted to the recording / playback device 2. When the transfer ends normally, the recording / playback device 2 deletes the backup title related to the transferred recording / playback device 3 from the HDD 13.

  Next, the recording / playback device 1 instructs the recording / playback device 4 that has transmitted the profile information to transfer the backup title related to the identification information of the recording / playback device 3. The recording / playback device 4 confirms whether a backup title related to the recording / playback device 3 is stored in the built-in HDD 13, and if it is extracted, it is transferred to the recording / playback device 1. Send.

  When the backup title related to the recording / playback device 3 is transferred, the recording / playback device 1 records and saves the transferred title as a normal title that can be recognized by the user. Information is transmitted to the recording / playback device 4. When the transfer ends normally, the recording / playback device 4 deletes the backup title related to the transferred recording / playback device 3 from the HDD 13.

  When a backup title related to the recording / reproducing device 3 is stored in the built-in HDD 13 of the recording / reproducing device 1, the backup title is changed to a normal title that can be recognized by the user.

  As a result, for example, in the recording / playback apparatus 1 in which the titles 1, 2, and 3 are normally recorded and the recorded title list screen shown in FIG. 11 is displayed, the title 4 is normally recorded and the recorded title list screen shown in FIG. 14 is displayed. As a result of performing the restoration process on the recording / playback device 3 to be performed, the recording / playback device 1 records the title 4 as a normal title, and the recorded title list screen shown in FIG. 24 is displayed. In other words, the recording / playback device 1 is in a state where the user can recognize that the titles 1, 2, 3, and 4 are recorded.

  In this way, when the internal HDD 13 of a certain recording / playback device crashes and the recorded contents of the HDD 13 cannot be read at all, the other HDD 13 connected to the home LAN 20 is used to backup the crashed HDD 13. Since the title can be restored, the stability of the recording of the entire system can be kept high without depending on the recording storage of only the single recording device.

It is a block diagram which shows an example of the whole structure of the video recording / reproducing system which consists of a recording device based on this invention. The block diagram which shows one Embodiment of the main structures of the recording / reproducing apparatuses 1, 2, 3, 4 as each recording apparatus which comprises a recording / reproducing system. The flowchart figure which shows the process which sets the prescribed value of the memory in the recording / reproducing apparatuses 1-4. The flowchart figure which shows the backup setting process in a video recording / reproducing system. The flowchart figure which shows the backup setting process in the video recording / reproducing apparatus used as a backup origin. The flowchart figure which shows the backup setting process in the video recording / reproducing apparatus used as a backup origin. The figure which shows the selection screen of the backup title in the recording / reproducing apparatus used as backup origin. The conceptual diagram for demonstrating profile information. The conceptual diagram which shows the list of the profile information of each recording / reproducing apparatus acquired with the recording / reproducing apparatus of backup origin. The figure which shows the title selection screen after the backup setting completion in the recording / reproducing apparatus of a backup origin. The flowchart figure which shows the backup setting process in recording / reproducing apparatuses other than a backup origin. The conceptual diagram for demonstrating the memory usage condition in HDD built in the other recording / reproducing apparatus. The flowchart figure which shows the backup process in a video recording / reproducing system. The figure which shows the recording title list screen for demonstrating backup preservation | save. The sequence diagram for demonstrating a series of flows of the backup setting process and backup process in a video recording / reproducing system. The flowchart figure which shows the other Example of the backup setting process in the recording / reproducing apparatus of a backup origin. The flowchart figure which shows the other Example of the backup setting process in the recording / reproducing apparatus of a backup origin. The flowchart figure which shows the title movement process in the recording / reproducing apparatus which has preserve | saved the backup title regarding another recording / reproducing apparatus. The flowchart figure which shows the title movement process in recording / reproducing apparatuses other than a backup source and a backup destination. The sequence diagram for demonstrating a series of flows of the title movement process in a video recording / reproducing system. The flowchart figure which shows the title restoration process in a video recording / reproducing system. The flowchart figure which shows the title decompression | restoration process in the recording / reproducing apparatus different from the recording / reproducing apparatus which HDD crashed. The flowchart figure which shows the title restoration process in another recording / reproducing apparatus. The figure which shows the title selection screen in the recording / reproducing apparatus which carried out the decompression | restoration process. The sequence diagram for demonstrating a series of flows of the title restoration process in a video recording / reproducing system.

Explanation of symbols

1, 2, 3, 4 Recording / playback equipment 11 Tuner 13 Hard disk unit (HDD)
15 CPU
19 Communication Processing Unit 20 Home LAN
30 Backup setting mark

Claims (16)

In a recording device connected to another recording device having a first recording unit in which information related to video or audio is recorded by wired or wireless network connection,
A second recording unit in which information about video or audio is recorded;
When the backup storage of at least a part of the information recorded in the second recording unit is instructed, the free space of the first recording unit and the recording operation of the other recording device can be performed from the other recording device. Or an acquisition means for acquiring impossible time information;
Based on the acquired free space and time information, a recording device that backs up the instructed information of the second recording unit, and a determination unit that determines the execution time;
Notification means for notifying the determined execution time information to the recording apparatus determined by the determination means;
At least a part of the instructed second recording unit while being held in the second recording unit with respect to the recording apparatus determined by the determining unit at the execution time determined by the determining unit. A transmission means for transmitting information;
A recording apparatus comprising:   The acquisition unit is configured to acquire a substantial free space obtained by subtracting a scheduled use amount of a recording reservation set in the other recording device from the free space of the first recording unit. The recording apparatus according to claim 1.   The acquisition means obtains a substantial free space obtained by subtracting a scheduled use amount of a recording reservation set in the other recording device and a preset specified capacity from the free capacity of the first recording unit. The recording apparatus according to claim 1, wherein the recording apparatus is obtained.   Based on the acquired time information indicating that the recording device is operable and impossible and the time when the recording device is capable of performing backup operation, the determination unit is configured to store both the other recording device and the recording device as backups. 4. The recording apparatus according to claim 1, wherein the latest operable time zone is determined as an execution time of backup storage. In a recording apparatus connected to a first recording apparatus having a first recording section in which information is recorded and a second recording apparatus having a second recording section in which information is recorded by wired or wireless network connection,
A third recording unit in which first information about video or audio and second information corresponding to a backup of the information recorded in the first recording unit are recorded;
Determination means for determining whether or not the free space in the third recording unit is less than a preset specified value;
When the determination unit determines that the free space is equal to or less than a specified value, the acquisition unit acquires the free space of the second recording unit from the second recording device connected to other than the first recording device;
Backup destination determination means for determining a recording device for backing up the second information recorded in the third recording section, based on the free space acquired by the acquisition means;
Transmitting means for transmitting at least part of the second information recorded in the third recording unit to the recording device determined by the backup destination determining means;
A recording apparatus comprising: In a recording apparatus connected to a first recording apparatus having a first recording section in which information is recorded and a second recording apparatus having a second recording section in which information is recorded by wired or wireless network connection,
This corresponds to a backup of the first information relating to the video or audio that can be viewed by the user on the recording device and the information recorded in the first storage unit, and is the second state in which the user cannot view the recording device. A third recording section in which the information is recorded;
Determination means for determining whether or not the free space in the third recording unit is less than a preset specified value;
When the determination unit determines that the free space is equal to or less than the specified value, the free space of the second recording unit from the second recording device connected to other than the first recording device, and the second recording device. Acquisition means for acquiring time information on which the recording operation of the apparatus is possible or impossible;
A recording device that backs up the second information recorded in the third recording unit based on the free space and time information acquired by the acquisition unit, and a determination unit that determines the execution time;
Notification means for notifying the determined execution time information to the recording apparatus determined by the determination means;
Transmitting means for transmitting at least part of the second information recorded in the third recording unit to the recording apparatus determined by the determining means at the execution time determined by the determining means;
A recording apparatus comprising:   The acquisition unit acquires a substantial free space obtained by subtracting a scheduled use amount of a recording reservation set in the second recording device from the free space of the second recording unit. The recording apparatus according to claim 5 or 6.   The acquisition means obtains a substantial free space obtained by subtracting a scheduled recording use amount set in the second recording device and a preset specified capacity from the free space in the second recording unit. The recording apparatus according to claim 5, wherein the recording apparatus acquires the above.   The determination means backs up the most recent time zone in which the backup storage operation is possible based on the acquired time information indicating that the operation is possible or impossible and the time when the backup operation is possible or impossible in the recording apparatus. The recording apparatus according to claim 5, wherein the recording apparatus determines a storage execution time.   And a deletion notification unit that notifies the first recording device of information to delete the backup information when the determination unit determines that there is no backup storable recording device. The recording apparatus according to claim 5. In a recording apparatus having a first recording unit having a first recording unit in which information relating to video or audio is recorded and a second recording unit connected via a wired or wireless network,
When the restoration of the information recorded in the first recording device is instructed, at least a part of the information recorded in the first recording unit in the second recording unit is viewed by the user in the recording device. A determination means for determining whether the data is stored in an incapable state;
If it is determined that the information is stored by the determination unit, at least a part of the information recorded in the first recording unit stored in a state where the user cannot view the second recording unit is provided to the user. Change means to change to a viewable state,
A recording apparatus comprising: Video or audio is connected to a first recording device having a first recording unit in which information is recorded and a second recording device having a second recording unit in which information is recorded by wired or wireless network connection. In a recording apparatus having a third recording unit in which information on is recorded,
When the restoration of the information recorded in the first recording device is instructed, at least a part of the information recorded in the first recording unit by the third recording unit is viewed by the user in the recording device. A determination means for determining whether the data is stored in an incapable state;
If it is determined that the information is stored by the determination means, at least a part of the information recorded in the first recording unit stored in a state where the user cannot view the third recording unit is provided to the user. Change means to change to a viewable state,
When the restoration of the information recorded in the first recording device is instructed, the second recording unit records in the first recording unit stored in a state that the user cannot view the recording device. Obtaining means for obtaining at least a part of the recorded information from the second recording device;
Recording means for recording at least a part of the information recorded in the first recording unit acquired by the acquiring means in a state that can be viewed by the user;
A recording apparatus comprising: Backup method in a recording apparatus having a second recording unit in which information related to video or audio is recorded, connected to another recording apparatus having a first recording unit in which information related to video or audio is recorded, via a wired or wireless network In
When the backup storage of at least a part of the information recorded in the second recording unit is instructed, the free space of the first recording unit and the recording operation of the other recording device can be performed from the other recording device. Or to obtain impossible time information and
Based on the acquired free space and time information, a step of determining a recording device for backing up the instructed information of the second recording unit and its execution time;
Notifying the determined execution time information to the determined recording device;
Transmitting at least a part of the instructed second recording unit to the determined recording apparatus while being held in the second recording unit at the determined execution time; ,
A backup method characterized by comprising: A first recording device having a first recording unit in which information is recorded and a second recording device having a second recording unit in which information is recorded are connected via a wired or wireless network, and are related to video or audio In the backup method in the third recording apparatus having the third recording unit in which the first information and the second information corresponding to the backup of the information recorded in the first recording unit are recorded,
Determining whether the free space in the third storage unit is less than a preset specified value;
If the determination step determines that the free space is equal to or less than a specified value, obtaining the free space of the second recording unit from the second recording device connected to other than the first recording device;
Determining a recording device for backing up the second information stored in the third storage unit based on the acquired free space;
Transmitting at least part of the second information stored in the third storage unit to the determined recording device;
A backup method characterized by comprising: In a backup method in a second recording apparatus having a first recording apparatus having a first recording section in which information relating to video or audio is recorded and a second recording section connected via a wired or wireless network,
When the restoration of the information recorded in the first recording device is instructed, at least a part of the information recorded in the first recording unit by the second recording unit is stored in the second recording device. Determining whether the user is not available for viewing;
If it is determined that the information is stored in this determination step, at least a part of the information recorded in the first recording unit stored in a state where the user cannot view the second recording unit is provided to the user. Changing to a viewable state,
A backup method characterized by comprising: Video or audio is connected to a first recording device having a first recording unit in which information is recorded and a second recording device having a second recording unit in which information is recorded by wired or wireless network connection. In the backup method in the third recording apparatus having the third recording unit in which information on the recording is recorded,
When the restoration of the information recorded in the first recording device is instructed, at least a part of the information recorded in the first recording unit by the third recording unit is viewed by the user in the recording device. A step of determining whether the data is stored in an incapable state;
If it is determined that the information is stored in this determination step, at least a part of the information recorded in the first recording unit stored in a state where the user cannot view the third recording unit is provided to the user. Changing to a viewable state,
When the restoration of the information recorded in the first recording device is instructed, the first recording stored in the second storage unit in a state in which the user cannot view with the third recording device Obtaining at least part of the information recorded in the section from the second recording device;
Recording at least a part of the acquired information recorded in the first recording unit in a state that can be viewed by the user;
A backup method characterized by comprising:

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