JP2010177907A - Video recording device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a load on a recording medium in a video recording device. <P>SOLUTION: The video recording device is provided with: a digital tuner which receives a TV program; a nonvolatile memory, a volatile temporary storage memory; an HDD where video/audio data etc., of a TV program are recorded; and a controller microcomputer controlling respective parts of the device. The control microcomputer generates management information corresponding to the video/audio data of the TV program recorded in the HDD (S1), and stores the generated management information in the temporary storage memory (S2). Then the control microcomputer 18 determines whether normally video recording processing is performed (S4), for example, one minute after last backup processing (YES at S3), and ends this processing when the normally video recording processing is performed (YES at S5). When the normally video recording processing is not performed (NO at S5), on the other hand, the management information stored in the temporary storage memory is recorded to the HDD (S6). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a recording apparatus capable of constantly recording TV programs.

  2. Description of the Related Art In recent years, recording apparatuses that can perform a process of constantly recording a television program (hereinafter referred to as a TV) viewed by a user (hereinafter referred to as a constant recording process) are known (for example, Patent Documents 1 to 3). reference). In this type of recording device, video and audio data (video / audio data) recorded by the continuous recording process even when a user is watching and misses a scene of a TV program that has not been set for recording. ) Can be reliably viewed.

  By the way, generally, when this type of recording apparatus records a TV program on a recording medium such as a hard disk, management information for managing the address of the video / audio data of the TV program recorded on the recording medium is required. If a recording process is interrupted due to a power failure or the like during recording and management information disappears, video / audio data cannot be reproduced. On the other hand, in the conventional recording apparatus capable of performing the continuous recording process, when recording the TV program, the video / audio data of the TV program is recorded on the recording medium and the management information generated on the memory is recorded. Is recorded on the recording medium at regular intervals (hereinafter referred to as backup processing).

  By the way, generally, a user rarely reproduces a TV program recorded by a constant recording process. However, the conventional recording device capable of continuous recording has a problem in that a load is applied to the recording medium because backup processing is performed even during continuous recording processing.

JP 2002-84498 A JP 2007-208493 A JP 2007-281772 A

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a recording apparatus that can reduce a load on a recording medium.

  In order to achieve the above object, the invention of claim 1 includes a receiving means for receiving a television program broadcast from a broadcasting station (hereinafter referred to as a TV program), video data of the TV program received by the receiving means, and Nonvolatile recording medium for recording audio data, management information generating means for generating management information for managing video data and audio data recorded on the recording medium, and management information generated by the management information generating means And a control unit for controlling each part of the apparatus having a recording process mode for constantly recording a TV program received by the receiving unit. A storage device for temporarily storing information, wherein the control means, when set to the continuous recording process mode, Only video data and audio data of a TV program which is being signal and records on the recording medium, is the generated management information using the management information generation unit configured to store only in said storage means.

  According to a second aspect of the present invention, in the recording apparatus according to the first aspect, the storage means is a volatile memory.

  According to a third aspect of the present invention, in the recording apparatus according to the first or second aspect, the management information acquisition means for acquiring management information corresponding to specific video data from the management information stored in the storage means. The control means further comprises a management information acquisition means for selecting the selected TV program when a user selects a TV program to be titled from the TV programs recorded in the continuous recording processing mode. Corresponding management information is acquired from the storage means, and the acquired management information is recorded on the recording medium.

  According to the present invention, when the continuous recording processing mode is set, only the video data and audio data of the received TV program are recorded on the recording medium, and the management information is stored only in the storage means. For this reason, since the management information is not recorded on the recording medium in the continuous recording process, the writing load on the recording medium can be reduced.

The block diagram which shows the structure of the hard-disk recorder which concerns on one Embodiment of this invention. The flowchart which shows the procedure of the backup process of the said hard-disk recorder. (A) shows an example of the data recorded in the temporary storage memory of the said hard disk recorder, (b) is a figure which shows an example of the data recorded on HDD of the said hard disk recorder. The flowchart which shows the procedure of the title-ized process of the said hard-disk recorder.

  A hard disk recorder (recording apparatus) according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing the internal configuration of the hard disk recorder 1. The hard disk recorder 1 receives a television program broadcast from a broadcasting station (hereinafter referred to as a TV program), and the video data and audio data of the TV program are connected to the hard disk recorder 1 via a transmission cable 3. This is output to the monitor device 2. The hard disk recorder 1 records and reproduces a TV program broadcast from a broadcasting station. The monitor device 2 is a display device having a display and a speaker.

  The hard disk recorder 1 includes a digital tuner (reception means) 11 that receives a TV program based on a digital TV broadcast signal broadcast from a broadcasting station, and a remote control signal that receives a remote control signal transmitted from a remote control device 4 operated by a user. A receiving unit 12 and a terminal unit 13 composed of an HDMI terminal or the like provided so as to be exposed outside the housing are provided. The hard disk recorder 1 also includes a non-volatile memory 14, a volatile temporary storage memory (storage device) 15, a hard disk for recording video and audio data (hereinafter referred to as video / audio data) of a TV program, etc. The recording medium in the above section (hereinafter referred to as HDD) 16, an access unit 17, and a control microcomputer (control means) 18 that controls each unit of the apparatus are further provided.

  In the memory 14, a program 14 a for operating the control microcomputer 18, recorded program information 14 b in which information of a TV program to be reserved-recorded is recorded, and a continuous recording processing setting (always recording processing mode) described later is turned on. / Continuous recording processing setting information 14c in which off setting information is recorded is stored. Since the memory 14 is a non-volatile memory, even when the power of the hard disk recorder 1 is turned off due to a power failure or the like, information stored in the program 14a, the recorded program information 14b, and the constant recording process setting information 14c. Will not be erased.

  In the temporary storage memory 15, management information 15a is stored. Since the temporary storage memory 15 is volatile, the management information 15a is deleted when the power of the hard disk recorder 1 is turned off due to a power failure or the like. The management information 15a is information for managing the video / audio data of the TV program stored in the HDD 16, and the management information 15a stores information such as the encoding method, data size, and range of the video / audio data. Yes.

  The HDD 16 is a non-volatile recording medium that stores video / audio data and management information. Since the HDD 16 is non-volatile, the video / audio data and the management information are not erased even when the power of the hard disk recorder 1 is turned off due to a power failure or the like. The access unit 17 reads / writes TV program video / audio data and management information from / to the HDD 16. The control microcomputer 18 includes a reproduction processing unit 18a, a recording processing unit 18b, a management information generation unit (management information generation unit) 18c, a management information backup processing unit 18d, and a management information acquisition unit (management information acquisition unit) 18e. And have.

  The reproduction processing unit 18a reproduces the TV program received based on the TV program received by the digital tuner 11 and the video / audio data read from the HDD 16 via the access unit 17, and the video data and audio data of the reproduced TV program. Is output to the monitor device 2.

  For example, the recording processing unit 18b performs reservation recording of the TV program received from the digital tuner 11 on the HDD 16 based on the recorded program information 14b set by the user or based on the recording setting by the remote control device 4 (hereinafter referred to as “recording program information”). Normal recording processing). Further, the recording processing unit 18b always records the TV program received from the digital tuner 11 on the HDD 16 when the continuous recording processing mode is set to ON, that is, when the continuous recording processing setting information 14c is set to ON ( Hereinafter, a constant recording process is performed. Details of the continuous recording process will be described later.

  The management information generating unit 18 c generates management information for managing the video / audio data recorded in the HDD 16 and stores the generated management information 15 a in the temporary storage memory 15. The management information backup processing unit 18d performs processing (hereinafter referred to as backup processing) for recording the management information 15a stored in the temporary storage memory 15 on the HDD 16 via the access unit 17 every predetermined time. Note that during the regular recording process, the backup process is not performed as described later. The management information acquisition unit 18 e acquires management information corresponding to specific video / audio data from the management information 15 a stored in the temporary storage memory 15.

  Next, the backup processing procedure will be described with reference to the flowchart shown in FIG. Here, it is assumed that the TV program is currently being viewed by the user and the TV program received by the digital tuner 11 is being recorded.

  First, the control microcomputer 18 uses the management information generation unit 18c to generate management information corresponding to the video / audio data of the TV program recorded in the HDD 16 (S1), and stores the generated management information in the temporary storage memory 15. Store (S2).

  Then, for example, when 1 minute has elapsed since the previous backup process (YES in S3), the control microcomputer 18 determines whether or not the continuous recording process setting information 14c is set to ON (S4). As a result, when the continuous recording process setting information 14c is set to ON, that is, when the continuous recording is being performed (YES in S5), this process is terminated. On the other hand, when the recording process is not always performed (NO in S5), the control microcomputer 18 records (backups) the management information stored in the temporary storage memory 15 in the HDD 16 using the management information backup processing unit 18d (S6). ).

  Next, data stored in the temporary storage memory 15 and the HDD 16 will be described with reference to FIG. FIG. 3A shows the storage contents of the temporary storage memory 15, and FIG. 3B shows the recording contents of the HDD 16. Here, it is assumed that the TV program A is recorded by the normal recording process, and then the TV program B is recorded by the continuous recording process.

  As shown in FIG. 3A, the temporary storage memory 15 stores management information b corresponding to the video / audio data B of the TV program B. On the other hand, the HDD 16 stores video / audio data A of the TV program A, management information a corresponding to the data A, and video / audio data B of the TV program B. If the power of the hard disk recorder 1 is turned off, the management information b stored in the temporary storage memory 15 is erased, so that the video / audio data B cannot be reproduced. On the other hand, the management information a is not erased from the HDD 16 even when the power of the hard disk recorder 1 is turned off. Therefore, the control microcomputer 18 can reproduce the video / audio data A based on the management information a. Further, when the power of the hard disk recorder 1 is turned off, the management information b is erased, so that the area where the video / audio data B in the HDD 16 is recorded is determined to be an unused area. Therefore, the recording capacity of the HDD 16 can be used efficiently.

  Next, the procedure of the title process for the video / audio data recorded by the continuous recording process will be described with reference to the flowchart shown in FIG. Titleization is processing that enables reproduction by recording video / audio data and management information corresponding to the video / audio data in the HDD 16 as in the normal recording process. Here, it is assumed that the video / audio data has already been recorded in the HDD 16 by the continuous recording process, and the management information has been stored in the temporary storage memory 15.

  First, when the user operates the remote controller 4 to select a TV program to be titled from among TV programs recorded by the continuous recording process (S11), the control microcomputer 18 uses the management information acquisition unit 18e. The management information corresponding to the video / audio data of the selected TV program is acquired from the temporary storage memory 15 (S12). The control microcomputer 18 records (backups) the acquired management information in the HDD 16 using the management information backup processing unit 18d (S13). In this way, a TV program recorded by the constant recording process can be converted into a title (recorded in the HDD 16 as a program file) with a simple operation.

  As described above, in the hard disk recorder 1 according to the present embodiment, only the video / audio data of the TV program received by the digital tuner 11 is recorded in the HDD 16 when the constant recording processing setting is set to ON. At the same time, management information corresponding to the video / audio data is stored only in the temporary storage memory 15. For this reason, the management information is not recorded in the HDD 16 in the continuous recording process, so the write load on the HDD 16 can be reduced.

  In addition, this invention is not restricted to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not change the meaning of invention. For example, in the above-described embodiment, an example in which a program is recorded on the HDD 16 has been described. However, the present invention is not limited to this, and a TV program may be recorded on a recording medium such as an optical disk or a non-volatile flash memory. Moreover, although the example which applies this invention to the hard disk recorder 1 which has the digital tuner 11 was shown in the said embodiment, it is not restricted to this, You may apply this invention to the hard disk recorder which has an analog tuner. Further, a TV receiver capable of recording a TV program may perform the above-described continuous recording process.

1 Hard disk recorder (recording device)
11 Digital tuner (reception means)
15 Temporary storage memory (storage means, storage device)
16 HDD (recording medium)
18 Microcomputer for control (control means)
18c management information generation unit (management information generation means)
18e Management information acquisition unit (management information acquisition means)

Claims (3)

Receiving means for receiving a television program broadcast from a broadcast station (hereinafter referred to as a TV program);
A non-volatile recording medium for recording video data and audio data of the TV program received by the receiving means;
Management information generating means for generating management information for managing video data and audio data recorded on the recording medium;
Storage means for storing management information generated by the management information generating means;
In a recording apparatus having a constant recording processing mode for constantly recording a TV program received by the receiving means, and a control means for controlling each part of the apparatus,
The storage means is a storage device for temporarily storing the management information;
The control means records only the video data and audio data of the TV program received by the receiving means on the recording medium when the continuous recording processing mode is set, and the management information generating means A management apparatus for storing management information generated by use only in the storage means.   The recording apparatus according to claim 1, wherein the storage unit is a volatile memory. Management information acquisition means for acquiring management information corresponding to specific video data from the management information stored in the storage means,
When the user selects a TV program to be titled from the TV programs recorded in the continuous recording processing mode, the control means uses the management information acquisition means to manage corresponding to the selected TV program. The recording apparatus according to claim 1, wherein information is acquired from the storage unit, and the acquired management information is recorded on the recording medium.

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