JP2008148150A - Recording device and recording method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform reserved video recording by appropriately selecting a program to be erased from among recorded programs even in a case a program which is retrieved by a keyword and for which video recording is reserved can not be recorded because of a lack of remaining capacity in a recording device which performs automatic video recording corresponding to an automatic video recording reservation keyword. <P>SOLUTION: When executing automatic video recording in accordance with video recording reservation information, in a case video data of a program for which video recording has been reserved, can not be recorded because of the lack of the remaining capacity of a recording medium, video data of a program having the same keyword as the keyword of a program to be recorded this time are erased from the recording medium among the already recorded video data, so that video data to be erased are appropriately selected, the remaining capacity is secured and reserved video recording can be executed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a video recording technique for recording video on a recording medium such as a hard disk or a DVD by reservation.

  In recent years, recorders using a hard disk drive (HDD: Hard Disk Drive), which is a large capacity recording medium of several hundred gigabytes, are on the market. In such a recorder, the mainstream method is to use the large-capacity recording medium to record and take a picture of an interesting program for later viewing.

  Further, in recent years, there is a recorder that generates an electronic program guide (EPG) from program guide data superimposed on broadcast waves, allows a user to select a program from the program guide, and can input it as a recording reservation as it is. . Furthermore, if a keyword for recording reservation is set, keyword search is performed from the electronic program guide, and a program including a program title, program content, or performer name that matches the keyword is automatically reserved and recorded. There is also a recorder that does this.

  This recorder has a built-in dictionary that allows you to search for other keywords related to the keyword, and automatically records programs that match other related keywords as well as programs that match the set keywords. Can do. For example, when the professional baseball player “A” is set as a keyword, in addition to a program including the keyword A, a program including the team name B to which A belongs, and a keyword of professional baseball, in addition to a program including the keyword A, It is possible to search for programs including and automatically record.

  In such a recorder, a recording area for automatic recording is used in order to prevent the recording capacity of the recording medium from being pressed and the user from being unable to execute recording when the automatically recorded content is accumulated. Can be set. Further, when there is no free space in the recording area for recording and new recording cannot be performed, there is one that secures the free space by deleting the recorded content from the old one (see, for example, Patent Document 1).

JP 2002-112150 A

However, in a recorder capable of performing automatic recording as described above, when a general-purpose keyword is set as a keyword for automatic recording reservation, a large number of programs are hit and automatic recording of these many programs is performed. I sometimes go.
As described above, as a result of automatic recording of a large number of programs using general-purpose keywords, there is a case where there is a shortage of free space, and content automatically recorded using keywords with low broadcast frequency may be automatically deleted.

  The present invention enables reservation recording by appropriately selecting a program to be deleted from among already recorded programs even when a program searched for by a keyword and reserved for recording cannot be recorded due to insufficient free space. This is the first purpose. It is a second object of the present invention to enable setting of prohibition of erasure of automatically recorded content according to a keyword for automatic recording reservation.

The recording apparatus of the present invention includes a receiving means for receiving a broadcast, a recording means for recording video data of a broadcast program received by the receiving means on a recording medium, a keyword setting means capable of setting an arbitrary keyword, a broadcast Among scheduled programs, a program related to the keyword set by the keyword setting means is searched, a recording reservation setting means for setting recording reservation information of the searched program, and a recording reservation set by the recording reservation setting means Scheduled recording execution means for controlling the receiving means and the recording means to record the video data of the broadcast program reserved for recording in the recording medium according to the information, and the reserved recording execution means according to the recording reservation information. When recording video data of a reserved broadcast program on the recording medium, the recording medium has little free space and the recording reservation When the image data cannot be recorded, the video of the broadcast program having the same keyword as the keyword of the broadcast program currently recorded by the reservation recording execution means among the video data already recorded on the recording medium by the reservation recording execution means And erasing means for erasing data from the recording medium.
The recording apparatus of the present invention includes a receiving means for receiving a broadcast, a recording means for recording video data of a broadcast program received by the receiving means on a recording medium, a keyword setting means capable of setting an arbitrary keyword, a broadcast Among scheduled programs, a program related to the keyword set by the keyword setting means is searched, a recording reservation setting means for setting recording reservation information of the searched program, and a recording reservation set by the recording reservation setting means According to the information, for the keyword set by the keyword setting means, the reserved recording execution means for controlling the receiving means and the recording means to record the video data of the broadcast program reserved for recording on the recording medium, An erasure prohibition attribute for prohibiting erasure of broadcast program video data recorded by the reserved recording execution means in accordance with the recording reservation information. And the reserved recording execution means sets the video data of the broadcast program of the keyword to which the erasure prohibition attribute is added to the erasure prohibition and records it on the recording medium. The recording means is controlled.
The recording method of the present invention searches a program related to a keyword set by a keyword setting means capable of setting an arbitrary keyword among broadcast scheduled programs, and sets recording reservation information of the searched program. And recording means for recording the broadcast program video data received by the receiving means on a recording medium according to the recording reservation information set in the recording reservation setting step. A reserved recording execution step for controlling recording of video data of a reserved broadcast program on the recording medium, and recording video data of the broadcast program reserved for recording in accordance with the recording reservation information on the recording medium; If the recording medium has a small free space and the video data by the recording reservation cannot be recorded, the video data already recorded on the recording medium Chi, and having an erasing step for erasing the image data of the broadcast program keywords and identical keywords broadcast program to be recorded this time by the recording reservation from the recording medium.
The recording method of the present invention searches a program related to a keyword set by a keyword setting means capable of setting an arbitrary keyword among broadcast scheduled programs, and sets recording reservation information of the searched program. And recording means for recording the broadcast program video data received by the receiving means on a recording medium according to the recording reservation information set in the recording reservation setting step. Scheduled recording execution step for controlling to record the video data of the reserved broadcast program on the recording medium, and erasing the video data of the broadcast program recorded according to the recording reservation information for the keyword set by the keyword setting means A prohibition attribute setting step capable of arbitrarily setting an erase prohibition attribute for prohibition. In the reserved recording execution step, Is set to the erasure prohibition video data of the broadcast program keywords erase inhibit attribute is added and controls the recording means to record on the recording medium.
The program according to the present invention searches for a program related to a keyword set by a keyword setting means capable of setting an arbitrary keyword among broadcast-scheduled programs, and sets a recording reservation information for the searched program. And recording means for recording the video data of the broadcast program received by the receiving means on a recording medium according to the recording reservation information set in the recording reservation setting step. A scheduled recording execution step for controlling to record video data of the broadcast program recorded on the recording medium, and recording the video data of the broadcast program reserved for recording according to the recording reservation information on the recording medium. When the video data by the recording reservation cannot be recorded because there is not enough free space on the medium, it is already recorded on the recording medium In the video data, characterized in that to execute an erasing step of erasing the image data of the broadcast program keywords and identical keywords broadcast program to be recorded this time by the recording reservation from the recording medium into the computer.
The program according to the present invention searches for a program related to a keyword set by a keyword setting means capable of setting an arbitrary keyword among broadcast-scheduled programs, and sets a recording reservation information for the searched program. And recording means for recording the video data of the broadcast program received by the receiving means on a recording medium according to the recording reservation information set in the recording reservation setting step. Scheduled recording execution step for controlling to record the video data of the broadcast program recorded on the recording medium, and erasure of the video data of the broadcast program recorded in accordance with the recording reservation information for the keyword set by the keyword setting means Forbidden attribute setting step that can arbitrarily set the erasure prohibiting attribute to In addition, in the reserved recording execution step, the recording means is controlled to record the video data of the broadcast program of the keyword to which the erasure prohibition attribute is added to the erasure prohibition and record it on the recording medium. .
The computer-readable recording medium of the present invention is characterized in that the program is recorded.

According to the present invention, when recording video data of a broadcast program reserved for recording, if the recording medium has a small free space and cannot be recorded, the same keyword as the broadcast program to be recorded this time is recorded among the already recorded video data. The video data of the broadcast program of the keyword is deleted from the recording medium. As a result, even if the video data of the program reserved for recording cannot be recorded due to insufficient free space on the recording medium, the video data to be deleted can be appropriately selected and deleted from the already recorded video data. The free space can be secured and the scheduled recording can be performed.
In addition, according to the present invention, it is possible to set an erasure prohibit attribute for prohibiting erasure of video data of a broadcast program reserved for recording for a set keyword, and the keyword broadcast program to which the erasure prohibit attribute is added. The video data is set to prohibit erasure and recorded on the recording medium. As a result, it is possible to set the prohibition of erasure of video data of broadcast programs reserved for recording according to the setting related to the keyword. The recording device can be used without concern.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram showing a configuration example of a recorder to which the recording apparatus according to the first embodiment of the present invention is applied.

  In FIG. 1, a tuner 102 selects and detects an RF input (program broadcast wave) such as BS and terrestrial wave input from an antenna input terminal 101, and extracts a video signal and an audio signal. The tuner 102 digitizes the extracted video signal and audio signal and outputs the image data and audio data to the image / audio data bus 103.

  The image / audio data bus 103 is a bus for transmitting and receiving image data and audio data described later between the blocks. A tuner 102, NTSC decoder 104, A / D converter 106, and digital interface 108 are connected to the image / audio data bus 103. Further, an MPEG codec 110, a hard disk drive (HDD) 111, a removable disk 112, an NTSC encoder 113, a D / A converter 115, and a program table generator 123 are connected to the image / audio data bus 103.

  The NTSC decoder 104 digitizes the analog NTSC signal from the video input terminal 105 and outputs the image data to the image / audio data bus 103. An analog video output from an external video device is connected to the video input terminal 105. The A / D converter 106 digitizes the analog audio signal from the audio input terminal 107 and outputs audio data to the image / audio data bus 103. The audio input terminal 107 is connected to an analog audio output of an external video device or an external audio device.

  The digital interface 108 converts the digital video / audio signal input from the digital input terminal 109 into a format compatible with the image / audio data bus 103 and outputs the converted signal. The MPEG2 codec 110 compresses MPEG2 image data and audio data from the image / audio data bus 103 and expands MPEG2 compressed data recorded in the hard disk drive 111 and the removable disk 112.

  The hard disk drive 111 and the removable disk 112 are large-capacity recording media for recording MPEG2 compressed data. The hard disk drive 111 is a large-capacity built-in disk, and the removable disk 112 is a removable disk. The NTSC encoder 113 converts the image data from the image / audio data bus 103 into analog data and outputs it to the video output terminal 114. The D / A converter 115 converts the audio data from the image / audio data bus 103 into an analog signal and outputs it to the audio output terminal 116.

  The operation key 117 is for operating the recorder main body, and the remote control sensor 118 receives the transmission signal when the remote control is operated. The control bus 119 is a bus through which control signals from the main microcomputer 120 and control signals from the operation keys 117 and the remote control sensor 118 are transmitted and received.

  The main microcomputer 120 controls the mode of the entire device, and controls the execution of various functions by reading the operation of the operation key 117. For example, the main microcomputer 120 executes a program (software) stored in the ROM or the hard disk drive 111 (not shown) to control each block in the recorder and realize the processing operation shown in FIGS. .

The RAM 121 is a memory for storing temporarily stored data of the main microcomputer 120, various device settings, and program reservation information. The backup battery 122 is a battery for storing the data of the RAM 121 when the power is cut off due to a power failure or the like. It is.
The program guide generation unit 123 generates electronic program guide data using the program guide data stored in the hard disk drive 111 or the like, and outputs the data to the image / audio data bus 103.

  When the power source of the recorder in the first embodiment is turned off, the power is temporarily turned on at the time when the program guide data indicating the broadcast schedule of the program is transmitted from the broadcast station by the broadcast wave. The table data is received. The received program guide data is sent to and stored in the hard disk drive 111. Each time the program guide data is newly received, the contents of the program guide data stored in the hard disk drive 111 are updated.

  In the recorder shown in FIG. 1, when there is a program guide display instruction from the remote control sensor 118, the main microcomputer 120 controls the program guide generator 123 to use the program guide data stored in the hard disk drive 111 to generate an electronic program guide. Generate data for Then, the electronic program guide data is sent to an external display device via the NTSC encoder 113.

As is well known, the user can make a recording reservation for a desired broadcast program by operating the remote controller while viewing the electronic program guide. When a recording reservation is set by the user, the main microcomputer 120 stores information on the broadcast program reserved for recording in the hard disk drive 111 as manual reservation information.
The recorder of this embodiment has an automatic recording reservation function using program guide data stored in the hard disk drive 111 and keywords set by the user.

  FIG. 2 is a flowchart showing an automatic recording reservation setting operation in the recorder according to the first embodiment.

  At the time when program schedule data indicating a broadcast-scheduled program is transmitted from the broadcast station by the broadcast wave, the operation of the recorder is started, and the program schedule data is received by the tuner 102 in step S201. The received program guide data is stored in the hard disk drive 111 under the control of the main microcomputer 120. Next, in step S202, the main microcomputer 120 controls the program guide generation unit 123 to construct an electronic program guide using the program guide data stored in the hard disk drive 111 (electronic program guide construction processing).

  Next, in step S203, the main microcomputer 120 performs a search from the electronic program guide generated in step S202 using the set automatic recording reservation keyword (keyword search process). Thereby, it is searched whether there is a program having a character string that matches the set keyword, that is, a program that hits the keyword, from the program title (program name), program description, and performers in the electronic program guide. . The keyword for automatic recording reservation is set in advance by the user in the keyword setting process. In this keyword setting process, at least one arbitrary keyword can be set.

  In step S204, the main microcomputer 120 determines whether there is a program that has hit the keyword in the search in step S203. As a result, if it is determined that there is a program that hits the keyword, in step S205, the main microcomputer 120 sets automatic recording reservation for the program that hits the keyword (automatic recording reservation setting process). Specifically, information such as the program name of the hit program, broadcast date and time, broadcast channel, search keyword, and image quality at the time of recording is generated and stored in the hard disk drive 111 as recording reservation information. As a result, the program that hits the keyword for automatic recording reservation is automatically reserved for recording. Then, the automatic recording reservation setting operation ends. In the present embodiment, automatic recording reservation information using keywords is generated separately from the recording reservation information for programs that are manually set for recording reservation by using a program guide or the like.

As a result of the determination in step S204, if it is determined that there is no program that has hit the keyword, the main microcomputer 120 does nothing (skips step S205) and ends the automatic recording reservation setting operation. .
In the above description, the program guide data indicating the broadcast schedule of the program is acquired by broadcast waves. However, a network interface may be provided in the recorder to acquire the program schedule data.

  FIG. 3 is a flowchart showing an automatic recording operation for executing automatic recording in accordance with the recording reservation information related to the automatic recording reservation set as shown in FIG. In the recorder according to the first embodiment, a predetermined capacity of the entire capacity of the hard disk drive 111 is set as a recording area for automatic recording (for automatic reserved recording program). It is assumed that the remaining capacity is a recording area for manual recording by a user (including recording by manual reservation).

  When the operation starts, in step S301, the main microcomputer 120 detects a recording capacity (recordable area) related to the recording area for automatic recording, and a free space for executing automatic recording reservation in the recording area for automatic recording. Determine if there is capacity. As a result, if there is sufficient free space in the recording area for automatic recording, in step S302, the main microcomputer 120 starts execution of automatic recording as it is according to the recording reservation information related to automatic recording reservation. Then, content (video data and audio data or video data) is recorded in the recording area for automatic recording, and the program reserved for automatic recording is recorded (automatic recording execution processing). At this time, the program data recorded by the automatic recording reservation function is recorded in association with keyword information set for automatic recording of the program. The keyword of the recorded program may be held in the RAM 121.

  On the other hand, if the result of determination in step S301 is that there is not enough free space in the recording area for automatic recording, the main microcomputer 120 performs the following processing to ensure free space in the recording area for automatic recording. I do.

  Specifically, in step S303, the main microcomputer 120 searches and automatically records content that has already been recorded by using the same keyword as that used when searching for the program that is going to be recorded. Search for it. As a result, if there is content that has been searched with the same keyword and has been automatically recorded in the past, in the recorded content with the same keyword, content with the oldest recording date is automatically deleted (automatically) in step S305. Erase process). Then, the process returns to step S301.

  If there is no content with the same keyword as a result of the search in step S303, in step S304, the main microcomputer 120 searches for content that has been automatically recorded in the past regardless of the content of the keyword. As a result, if there is recorded content that has been automatically recorded, in step S306, the oldest recorded date is automatically deleted from the automatically recorded content, and the process returns to step S301.

  That is, when the automatic recording is executed according to the automatic recording reservation, if the free space of the recording area for automatic recording is insufficient, the content of the same keyword is first deleted from the oldest recording date. When there is no content with the same keyword, the content automatically recorded in the past is deleted from the oldest recording date regardless of the keyword. In this way, by selecting and automatically deleting the recorded content that has been automatically recorded, the free space of the recording area for automatic recording necessary for execution of automatic recording is secured.

  If there is no content that has been automatically recorded in the past as a result of the search in step S304, the content cannot be automatically deleted, so that the free space of the recording area for automatic recording cannot be secured and automatic recording is performed. The reservation cannot be executed. In this case, in step S307, the main microcomputer 120 stops the automatic recording as it is, and stores the recording reservation information regarding the program that could not be recorded in the hard disk drive 111 as it is. The video output terminal 114 then records information on the program that could not be recorded together with an error message indicating that the recording could not be performed due to a lack of capacity, based on the recording reservation information of the program that could not be automatically recorded when the electronic application was turned on next time. To the display device.

An example of automatic deletion of recorded content automatically recorded in the first embodiment will be described with reference to FIG.
FIG. 4 is a diagram conceptually showing the contents of the hard disk drive 111 in the recorder before executing the automatic recording reservation.

  In the example shown in FIG. 4, two keywords are set as keywords for automatic recording reservation: “railway”, which is a general term, and “world bicycle championship”, which is a specialized term. To do. As a manual recording reservation by the user, the program “Project Z” is reserved for recording every week.

  In FIG. 4, programs already recorded on the hard disk drive 111 are shown in a list format. Reference numeral 401 denotes content automatically recorded as a result of a search by a specialized keyword “world bicycle championship”. Reference numeral 402 denotes content automatically recorded as a result of a search by a general keyword “railway”. is there. 403 is content recorded by manual recording reservation by the user, and 404 is content automatically recorded as a result of a search by the keyword “railway” in the same manner as the content 402. 405 is a content that was hit and automatically recorded as a result of searching by the keyword “railway”, but it was hit because the character string “early summer Chichibu Railway” was found in the program description instead of the program name, and the recording time was Although there are 1 hour and 15 minutes, the content about the railway is about 10 minutes. Similar to the content 403, 406 is a content recorded by a manual recording reservation by the user, and 407 is a content automatically hit and recorded as a result of searching by the keyword “railway” as in the content 402 and 404. . Reference numeral 408 denotes content that has been hit and automatically recorded as a result of searching for the keyword “railway”. The program 408 is hit in the search because the program name includes “train”, which is a related phrase of “railway”, but the content is a drama and is not directly related to the railroad. Here, since the contents 403 and 406 are contents recorded by manual recording reservation by the user, they are recorded in a recording area different from the recording area for automatic recording and are not subject to automatic erasure.

  As shown in FIG. 4, it is assumed that a program that has been hit as a result of a new search by the keyword “railway” is to be recorded while content is recorded in the hard disk drive 111. At this time, if the free space in the recording area for automatic recording is insufficient, the “train travel” of the oldest content 402 among the content automatically recorded in the past by the keyword “railway” is automatically deleted. The Also, if there is not enough free space in the recording area for automatic recording and there is no recorded content automatically recorded by the keyword “railway”, it is the most content that has been automatically recorded by other keywords in the past. The old content 401 is automatically deleted.

According to the first embodiment, when automatic recording is executed according to the recording reservation information, if the recording area for automatic recording is insufficient, it is used when searching for a program to be recorded. The content of the same keyword as the selected keyword is deleted from the oldest recording date. When content with the same keyword does not exist, the content automatically recorded in the past is deleted from the oldest recording date regardless of the keyword. That is, when the free space of the recording area for automatic recording is insufficient, the same keyword used when searching for the program to be recorded in order to secure the free space necessary for execution of automatic recording. Content is automatically deleted with priority.
As a result, even if a program reserved for automatic recording cannot be recorded due to a lack of free space in the recording area for automatic recording, the content to be deleted should be appropriately selected and deleted from the already recorded content. With this, reserved space can be secured and scheduled recording becomes possible. In addition, automatic recording with general-purpose keywords can prevent content automatically recorded with keywords with low broadcast frequency from being automatically deleted, and a recorder with low frequency of deleting such valuable content is provided. be able to.

In this embodiment, search keyword information is added to the automatically recorded program and recorded, and when the free space is insufficient, the search keyword information added to the recorded program is used to record this time. A recorded program with the same keyword as the reserved program to be found was found.
In addition to this, information indicating that automatic recording is performed with the same keyword as the keyword set this time is added to the recorded video data, and the recorded keyword is recorded using the same keyword as the reserved program this time. It may be configured to find a finished program.
Specifically, discrimination information indicating whether or not automatic recording is performed with the same keyword as the currently set keyword is added to the automatically recorded video data. Each time the keyword is changed, the recorded information with the same keyword as the reserved program can be easily selected by rewriting the discrimination information added to the program automatically recorded by the keyword before the change. can do.

(Second Embodiment)
Next, a second embodiment of the present invention will be described.

  The configuration of the recorder to which the recording apparatus according to the second embodiment is applied is the same as the configuration of the recorder in the first embodiment shown in FIG. Similarly to the first embodiment, the recorder in the second embodiment transmits program guide data indicating a broadcast-scheduled program from a broadcast station by a broadcast wave (program broadcast wave) when the power is off. At this time, the power is temporarily turned on to receive the program guide data.

FIG. 5 is a flowchart showing the setting operation of the automatic recording reservation in the recorder in the second embodiment.
When it is time to transmit the program guide data from the broadcast station by the broadcast wave, the operation of the recorder is started, and the program guide data is received by the tuner 102 in step S501. The received program guide data is stored in the hard disk drive 111 under the control of the main microcomputer 120. Next, in step S502, the main microcomputer 120 controls the program guide generation unit 123 to construct an electronic program guide using the program guide data stored in the hard disk drive 111 (electronic program guide construction processing).

  Next, in step S503, the main microcomputer 120 performs a search from the electronic program guide generated in step S502 using the set automatic recording reservation keyword (keyword search process). Thereby, it is searched whether there is a program having a character string that matches the set keyword, that is, a program that hits the keyword, from the program title (program name), program description, and performers in the electronic program guide. .

  In this embodiment, when setting a keyword for automatic recording reservation, it is possible to set whether or not to use a protect keyword (erase prohibition keyword). The content automatically recorded by the protect keyword is set to have an erasure prohibition attribute, and prohibition of automatic erasure of the content is set. Specifically, when setting a keyword, the user can select whether or not to set this keyword as a protect keyword. If the protect keyword is not set, it is set as a normal keyword. In this keyword setting process, at least one arbitrary keyword can be set.

  In step S504, the main microcomputer 120 determines whether there is a program that has hit the keyword in the search in step S503. As a result, if it is determined that there is a program that has hit the keyword, in step S505, the main microcomputer 120 determines whether the hit keyword is a protect keyword.

  If the keyword is the protect keyword (there is a program that hits the protect keyword), in step S506, the main microcomputer 120 sets automatic recording reservation for the program that hits the protect keyword (automatic recording reservation). Setting process). Specifically, in addition to information such as the program name of the hit program, broadcast date and time, broadcast channel, search keyword, and image quality at the time of recording, information indicating that it is a protect keyword is generated, and the hard disk drive 111 is recorded as recording reservation information. To store. Then, the protected automatic recording reservation is set so that the content automatically recorded after execution of the recording reservation is set to have the erasure prohibition attribute. Then, the automatic recording reservation setting operation ends.

  If the result of determination in step S505 is that the keyword is not a protect keyword (there is a program that hits the normal keyword), in step S507, the main microcomputer 120 sets automatic recording reservation for the program that hits the keyword (automatic recording). Reservation setting process). Specifically, information such as the program name of the hit program, broadcast date and time, broadcast channel, search keyword, and image quality at the time of recording is generated and stored in the hard disk drive 111 as recording reservation information. In this step S507, normal automatic recording reservation without protection for the automatically recorded content is performed. Then, the automatic recording reservation setting operation ends.

If the result of determination in step S504 is that there is no program that has hit the keyword, the main microcomputer 120 terminates the automatic recording reservation setting operation without doing anything.
In the above description, the program guide data indicating the broadcast schedule of the program is acquired by broadcast waves. However, a network interface may be provided in the recorder to acquire the program schedule data.

  FIG. 6 is a flowchart showing an automatic recording operation for executing automatic recording in accordance with the recording reservation information related to the automatic recording reservation set as shown in FIG. In the recorder according to the second embodiment, a predetermined capacity of the entire capacity of the hard disk drive 111 is set as a recording area for automatic recording (for automatic reservation recording program). It is assumed that the remaining capacity is a recording area for manual recording by a user (including recording by manual reservation).

  When the operation starts, in step S601, the main microcomputer 120 detects the recording capacity (recordable area) related to the recording area for automatic recording, and free space for executing the automatic recording reservation in the recording area for automatic recording. Determine if there is capacity.

  As a result, if there is sufficient free space in the recording area for automatic recording, in step S602, the main microcomputer 120 starts execution of automatic recording as it is according to the recording reservation information related to automatic recording reservation. Then, content (video data and audio data or video data) is recorded in the recording area for automatic recording, and the program reserved for automatic recording is recorded (automatic recording execution processing).

At this time, the program data recorded by the automatic recording reservation function is recorded in association with keyword information set for automatic recording of the program. The keyword of the recorded program may be held in the RAM 121.
In addition, contents automatically recorded with the protect keyword are set to prohibit deletion and recorded in a recording area for automatic recording.

  On the other hand, if the result of determination in step S601 is that the free space in the recording area for automatic recording is insufficient, the main microcomputer 120 performs the following processing to secure the free space in the recording area for automatic recording. I do.

Specifically, in step S603, the main microcomputer 120 searches the already recorded content for whether or not there is a content that has been searched and automatically recorded by a normal keyword that is not a protect keyword. That is, it is searched whether there is automatically recorded content according to a normal automatic recording reservation without protection.
As a result, if there is content that has been searched with a normal keyword and has been automatically recorded in the past, in the recorded content of the normal keyword, content with the oldest recording date is automatically deleted (automatically) in step S604. Erase process). Then, the process returns to step S601.

  If there is no content recorded with a normal keyword as a result of the search in step S603, the content cannot be automatically deleted, so that the free space of the recording area for automatic recording cannot be secured, and automatic recording is performed. The reservation cannot be executed. In this case, in step S605, the main microcomputer 120 stops the automatic recording as it is, and stores the recording reservation information regarding the program that could not be recorded in the hard disk drive 111 as it is. The video output terminal 114 then records information on the program that could not be recorded together with an error message indicating that the recording could not be performed due to a lack of capacity, based on the recording reservation information of the program that could not be automatically recorded when the electronic application was turned on next time. To the display device.

  An example of automatic deletion of recorded content automatically recorded in the second embodiment will be described with reference to FIG. FIG. 7 is a diagram conceptually showing the contents of the hard disk drive 111 in the recorder in the second embodiment.

  In the example shown in FIG. 7, as a keyword for automatic recording reservation, a general term “railway” and a specialized term “world bicycle championship” are set, and the keyword “world bicycle” is set. It is assumed that “championship” is set as a protect keyword. Also, the program “Project Z” is reserved every week as a manual recording reservation by the user.

In FIG. 7, programs already recorded in the hard disk drive 111 are shown in a list format. Reference numeral 701 denotes content automatically recorded as a result of a search by the keyword “world bicycle championship”. Since the content is automatically recorded by the protect keyword, a key mark indicating prohibition of automatic erasure is also written. Reference numerals 702, 704, and 707 are contents automatically recorded as a result of a search by the keyword “railway”. Reference numerals 703 and 706 are contents automatically recorded by manual recording reservation by the user. Reference numeral 705 denotes content automatically recorded as a result of a search by the keyword “railway”, but was hit because the character string “early summer Chichibu Railway” was included in the program description instead of the program name. 708 is content automatically recorded by hitting a search by the keyword “railway” because “train” which is a related phrase of “railway” is included in the program name.
In the state shown in FIG. 7, when a new automatic recording reservation is about to be executed and the free space of the recording area for automatic recording is insufficient, erasure is prohibited among the recorded contents automatically recorded. The oldest content 702 “rail trip” is automatically deleted.

  According to the second embodiment, when automatic recording is performed according to the recording reservation information, if the recording area for automatic recording is insufficient, the recorded content recorded automatically is recorded as the recording date and time. Automatically erase old ones. At this time, automatic erasure is prohibited for the content automatically recorded with the protect keyword that sets the content to erasure prohibition. In other words, content automatically recorded with the protect keyword is prohibited from being deleted, and when the recording area for automatic recording is insufficient, only the content automatically recorded with the normal keyword is selected appropriately. It can be erased. Thereby, even if the automatic recording reservation is set, a recorder that can be used without worrying about the remaining amount of the recording medium due to concerns about automatic erasure can be provided.

In the present embodiment, the program automatically recorded with the protect keyword can be deleted only when a dedicated protection release operation is executed.
In other words, programs automatically recorded with the protect keyword are set not to be automatically deleted when the capacity is insufficient when automatic recording is executed, but also when normal deletion instructions are issued To do.

  In the second embodiment described above, the content automatically recorded with the protect keyword is recorded in the recording area for automatic recording, but the recorded capacity of the recording area for automatic recording is counted. Alternatively, the recording capacity of the recording area may not be compressed.

  Further, in addition to the configuration in the second embodiment, when the protect keyword is changed or deleted, the recorded content automatically recorded by the protect keyword before the change or deletion is automatically deleted with the deletion prohibition attribute removed. You may make it become the object of deletion. In other words, the recorded content automatically recorded by the automatic recording reservation based on the changed or deleted protect keyword is changed so that it can be automatically deleted, and is deleted when the recording area for automatic recording is insufficient. You may comprise so that it can.

(Other embodiments of the present invention)
For realizing the functions of the above-described embodiment for a computer (CPU or MPU) in an apparatus or system connected to the various devices so that the various devices are operated to realize the functions of the above-described embodiments. Supply software programs. And what was implemented by operating the said various devices according to the program stored in the computer of the system or the apparatus is also contained under the category of this invention.
In this case, the software program itself realizes the functions of the above-described embodiments, and the program itself constitutes the present invention. Further, means for supplying the program to the computer, for example, a recording medium storing the program constitutes the present invention. As a recording medium for storing such a program, for example, a flexible disk, a hard disk, an optical disk, a magneto-optical disk, a CD-ROM, a magnetic tape, a nonvolatile memory card, a ROM, or the like can be used.
Further, when the supplied program realizes the functions of the above-described embodiment in cooperation with an operating system or other application software running on the computer, the program is included in the embodiment of the present invention. Needless to say.
Further, after the supplied program is stored in a memory provided in a function expansion board or a function expansion unit related to the computer, a CPU or the like provided in the function expansion board or the like based on an instruction of the program may be part of the actual processing Do everything. Needless to say, the present invention includes the case where the functions of the above-described embodiments are realized by the processing.

  It should be noted that each of the above-described embodiments is merely an example of a specific example for carrying out the present invention, and the technical scope of the present invention should not be construed in a limited manner. . That is, the present invention can be implemented in various forms without departing from the technical idea or the main features thereof.

It is a figure which shows the structural example of the recorder to which the recording device by 1st Embodiment is applied. It is a flowchart which shows the setting operation | movement of the automatic video recording reservation in 1st Embodiment. It is a flowchart which shows the automatic video recording operation | movement in 1st Embodiment. It is a figure for demonstrating an example of the automatic deletion of the content recorded automatically in 1st Embodiment. It is a flowchart which shows the setting operation | movement of the automatic video recording reservation in 2nd Embodiment. It is a flowchart which shows the automatic video recording operation | movement in 2nd Embodiment. It is a figure for demonstrating an example of the automatic deletion of the content recorded automatically in 2nd Embodiment.

Explanation of symbols

102 Tuner 103 Image / Audio Data Bus 110 MPEG Codec 111 Hard Disk Drive (HDD)
112 Removable Disk 117 Operation Key 119 Control Bus 120 Main Microcomputer 121 RAM
123 Program guide generator

Claims (11)

Receiving means for receiving broadcasts;
Recording means for recording video data of a broadcast program received by the receiving means on a recording medium;
Keyword setting means that can set any keyword,
A recording reservation setting means for searching for a program related to the keyword set by the keyword setting means among the broadcast scheduled programs, and setting recording reservation information of the searched program;
Scheduled recording execution means for controlling the receiving means and the recording means to record the video data of the broadcast program reserved for recording on the recording medium in accordance with the recording reservation information set by the recording reservation setting means;
When recording the video data of the broadcast program reserved for recording according to the recording reservation information on the recording medium by the reserved recording execution means, when the recording medium has a small free space and the video data based on the recording reservation cannot be recorded, Of the video data already recorded on the recording medium by the reserved recording execution means, the video data of the broadcast program having the same keyword as the keyword of the broadcast program currently recorded by the reserved recording execution means is deleted from the recording medium. And an erasing unit. The reserved recording execution means controls the recording means to record video data of the broadcast program reserved for recording in a recording area for a reserved recording program set in advance for the recording medium,
The erasing means detects free space in the recording capacity for the reserved recording program, and when the recording capacity for the reserved recording program is insufficient, the video data recorded in the recording area for the reserved recording program The recording apparatus according to claim 1, wherein the recording device is erased.   Holding means for holding a keyword of the broadcast program recorded on the recording medium by the reserved recording execution means; and the erasing means is based on the keyword held in the holding means, and the reserved recording execution means records this time 2. The recording apparatus according to claim 1, wherein video data of a broadcast program having the same keyword as the keyword of the broadcast program to be selected is selected.   A holding means for holding determination information indicating whether or not the keyword of the broadcast program recorded on the recording medium by the reserved recording execution means is the same keyword as the keyword currently set by the keyword setting means; 2. The video data of a broadcast program having the same keyword as the keyword of the broadcast program to be recorded this time by the reserved recording execution unit is selected based on the discrimination information held in the holding unit. Recording device.   Program guide acquisition means for acquiring program guide data indicating the broadcast-scheduled program from the broadcast received by the receiving means, and the recording reservation setting means is set by the keyword setting means using the program guide data 2. The recording apparatus according to claim 1, wherein a program related to the keyword is searched. Receiving means for receiving broadcasts;
Recording means for recording video data of a broadcast program received by the receiving means on a recording medium;
Keyword setting means that can set any keyword,
A recording reservation setting means for searching for a program related to the keyword set by the keyword setting means among the broadcast scheduled programs, and setting recording reservation information of the searched program;
Scheduled recording execution means for controlling the receiving means and the recording means to record the video data of the broadcast program reserved for recording on the recording medium in accordance with the recording reservation information set by the recording reservation setting means;
Forbidden attribute setting means capable of arbitrarily setting an erasure prohibition attribute for prohibiting erasure of video data of a broadcast program recorded according to the recording reservation information by the reserved recording execution means for the keyword set by the keyword setting means And
The recording apparatus according to claim 1, wherein the reserved recording execution means controls the recording means to record the video data of the broadcast program of the keyword to which the erasure prohibition attribute is added to the recording medium with the erasure prohibition set. A recording reservation setting step of searching for a program related to a keyword set by a keyword setting means capable of setting an arbitrary keyword among broadcast scheduled programs, and setting recording reservation information of the searched program;
The receiving means for receiving the broadcast and the recording means for recording the video data of the broadcast program received by the receiving means on the recording medium are reserved for recording according to the recording reservation information set in the recording reservation setting step. A scheduled recording execution step for controlling video data of a broadcast program to be recorded on the recording medium;
When recording video data of the broadcast program reserved for recording on the recording medium according to the recording reservation information, if the recording medium has a small free space and video data based on the recording reservation cannot be recorded, And a erasing step of erasing from the recording medium video data of a broadcast program having the same keyword as the keyword of the broadcast program to be recorded this time by the recording reservation. A recording reservation setting step of searching for a program related to a keyword set by a keyword setting means capable of setting an arbitrary keyword among broadcast scheduled programs, and setting recording reservation information of the searched program;
The receiving means for receiving the broadcast and the recording means for recording the video data of the broadcast program received by the receiving means on the recording medium are reserved for recording according to the recording reservation information set in the recording reservation setting step. A scheduled recording execution step for controlling video data of a broadcast program to be recorded on the recording medium;
A prohibition attribute setting step capable of arbitrarily setting an erase prohibition attribute for prohibiting deletion of video data of a broadcast program recorded according to the recording reservation information for the keyword set by the keyword setting means,
In the reserved recording execution step, the recording means is controlled to record the video data of the keyword broadcast program to which the erasure prohibition attribute is added to the recording medium with the erasure prohibition set. A recording reservation setting step of searching for a program related to a keyword set by a keyword setting means capable of setting an arbitrary keyword among broadcast scheduled programs, and setting recording reservation information of the searched program;
The receiving means for receiving the broadcast and the recording means for recording the video data of the broadcast program received by the receiving means on the recording medium are reserved for recording according to the recording reservation information set in the recording reservation setting step. A scheduled recording execution step for controlling video data of a broadcast program to be recorded on the recording medium;
When recording video data of the broadcast program reserved for recording on the recording medium according to the recording reservation information, if the recording medium has a small free space and video data based on the recording reservation cannot be recorded, A program for causing a computer to execute an erasing step of erasing, from the recording medium, video data of a broadcast program having the same keyword as the keyword of the broadcast program to be recorded this time by the recording reservation among the already recorded video data. A recording reservation setting step of searching for a program related to a keyword set by a keyword setting means capable of setting an arbitrary keyword among broadcast scheduled programs, and setting recording reservation information of the searched program;
The receiving means for receiving the broadcast and the recording means for recording the video data of the broadcast program received by the receiving means on the recording medium are reserved for recording according to the recording reservation information set in the recording reservation setting step. A scheduled recording execution step for controlling video data of a broadcast program to be recorded on the recording medium;
For the keyword set by the keyword setting means, the computer executes a prohibition attribute setting step that can arbitrarily set a deletion prohibition attribute for prohibiting deletion of video data of a broadcast program recorded according to the recording reservation information. With
In the reserved recording execution step, the recording unit is controlled to record the video data of the broadcast program of the keyword to which the erasure prohibition attribute is added to the recording medium with the erasure prohibition set.   11. A computer-readable recording medium on which the program according to claim 9 or 10 is recorded.

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