JP2008245239A - Program recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent erasure of recorded data, which is not intended by a user, when timer repeated recording of consecutive program is performed. <P>SOLUTION: A comparison result by a program information comparison means 6 regarding whether a program title included in acquired electronic program information and a program title included in the timer recording information are in agreement is determined by a recording control means 7. When both are not in agreement, timer recording will be made, if there is a free area in a recording medium 14, and erasure is not performed. When both are in agreement, timer recording will be made if there is a free area in the recording medium 14, and during the process of the timer recording, whether recording is interrupted is supervised. If the recording is interrupted, the timer recording process is stopped. If the timer recording is conducted normally to the recording medium 14, the past recording data is erased from the recording medium 14. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a program recording apparatus, and more particularly to a program recording apparatus having a repetitive scheduled recording function for a continuous program that is regularly broadcasted a plurality of times.

  2. Description of the Related Art Conventionally, a program recording apparatus using a disc-shaped recording medium such as a DVD (Digital Versatile Disc) or an HDD (Hard Disc Drive) has a repetitive scheduled recording function of a continuous program that is regularly broadcast multiple times. . This repetitive scheduled recording function is to perform scheduled recording by repetitively recording a continuous program every day or week by making a recording reservation only once.

  However, since the conventional program recording apparatus uses a new recording area each time the program is repeatedly recorded, there is a problem that the recordable free space is quickly reduced, and the recording of broadcast times that has already been viewed Since the user has to manually erase data each time, there is a problem that the burden on the user is large.

  Therefore, when performing scheduled repetitive recording of a continuous program, the recorded data of the past broadcast times of the program is deleted prior to the recording of the program, so that the lack of free space is prevented and the user of the deletion operation A program recording apparatus that attempts to reduce the burden has been disclosed (see, for example, Patent Document 1).

JP 2002-33986 A

  However, in the repetitive scheduled recording of the continuous program by the program recording device described in Patent Document 1, even if a different program is being broadcast instead of the continuous program that the user wants to record due to circumstances of the broadcasting station, for example, In order to execute recording of a different broadcast program after erasing the recorded data, past recorded data is erased wastefully even though the continuous program desired by the user is not newly recorded. The recorded data does not remain as intended by the user.

  In addition, even if the continuous program that the user wants to record ends and changes to a new program, the past recorded data of the continuous program is erased regardless of this, so that the recording of the continuous program is performed as described above. There is a disadvantage that data does not remain as intended by the user.

  In addition, since the recorded data of the past continuous program is deleted prior to the new recording of the continuous program, if the recording of the new continuous program is interrupted due to some accident, the data recorded for the program is requested by the user. There is a disadvantage that only one less recording data remains than the number of times the recording has been performed.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a program recording apparatus capable of preventing erasure of recorded data against a user's intention when performing repetitive scheduled recording of a continuous program. To do.

In order to achieve the above object, according to the first aspect of the present invention, a recording program is periodically reserved on a recording medium by a recording execution unit only by once setting recording reservation of a continuous program broadcasted multiple times. In a program recording device for recording,
Program information acquisition means for acquiring an electronic program guide from a broadcast signal, and a recording reservation for setting reservation recording information such as a broadcast channel, broadcast date and time, program title, presence / absence of repeated recording of an arbitrary reserved program based on the electronic program guide Scheduled recording setting means for performing, scheduled recording information managing means for storing and managing scheduled recording information, recorded program management means for managing recorded program data as program information recorded in the recording medium, and recording medium Free area management means for managing the recordable free area, the first program title included in the scheduled recording information managed by the scheduled recording information management means, and the program information acquisition means before the scheduled recording starts. And comparing means for comparing the second program title included in the electronic program guide, and the first program title and the second program title match by the comparing means. When the comparison result is obtained and it is confirmed by the free space management means that a free area for recording new program data of the second program title exists in the recording medium, the second program title is stored in the recording medium. The recording execution means is controlled so that the new program data is reserved for recording, and when the scheduled recording of the new program data on the recording medium is completed without interruption, the recording is managed by the recorded program management means. When the recorded program of the first program title is erased from the recording medium and the reserved recording of new program data on the recording medium is interrupted, the new program data is not erased without erasing the recorded program data from the recording medium. And a recording control means for controlling the recording execution means to cancel the reserved recording.

  In order to achieve the above object, the second invention is the recording control means in the first invention, and the comparison means that the comparison means that the first program title matches the second program title by the comparison means. And when the free space management means confirms that there is no free space in the recording medium for recording new program data of the second program title, the recorded program managed by the recorded program management means It is characterized in that the recording execution means is controlled so that the new program data of the second program title is reserved and recorded on the recording medium after the program data is erased from the recording medium.

  Here, the recording control means in the first and second inventions described above further provides a comparison result that the first program title and the second program title do not match by the comparison means, and is empty. When it is confirmed by the area management means that a free area for recording new program data of the second program title exists in the recording medium, the new program data of the second program title is reserved for recording on the recording medium. The recorded program data of the first program title is not erased from the recording medium regardless of whether or not the scheduled recording of new program data on the recording medium ends without interruption by controlling the recording execution means. The recording execution unit may be controlled as described above.

  According to a third aspect of the present invention, there is obtained a comparison result indicating that the first program title and the second program title do not coincide with each other in the recording control means by the comparison means, and the second free space management means. When it is confirmed that there is a free space in the recording medium for recording new program data of the program title of the program, and when the scheduled recording of the new program data on the recording medium ends without interruption, the recorded program The recorded program data of the second program title managed by the management means is erased from the recording medium, and when the reserved recording is interrupted, the recorded program data of the second program title is recorded so as not to be erased from the recording medium. The execution means is controlled.

  Here, the recording control means obtains a comparison result that the first program title and the second program title do not match by the comparison means, and the free area management means newly sets the second program title. A configuration for controlling the recording execution means to stop the reserved recording of the new program data of the second program title on the recording medium when it is confirmed that there is no free area for recording such program data on the recording medium; Alternatively, the comparison means obtains a comparison result that the first program title and the second program title do not match, and the free area management means provides a free area for recording new program data of the second program title. When it is confirmed that it does not exist in the recording medium, the recorded program data of the second program title managed by the recorded program management means is erased from the recording medium. New program data of the second program title on the recording medium may be configured to control the recording execution means to reserve record.

  According to the present invention, a comparison result is obtained that the first program title included in the scheduled recording information reserved for recording matches the second program title included in the electronic program guide acquired before the scheduled recording start. Only when the recorded program data of the first program title on the recording medium is erased from the recording medium, and the first program title and the second program title do not match, Since the recorded program data of the first program title is not erased, the recorded data can be prevented from being erased against the user's intention.

  Further, according to the present invention, when the reserved recording is interrupted when there is an empty area for recording new program data on the recording medium, the recorded program data is not erased from the recording medium. Even when the program is interrupted, the recorded data of the continuous program can be left on the recording medium as intended by the user.

  Further, according to the present invention, when the first program title and the second program title match and the scheduled recording is finished without being interrupted, the first program title on the recording medium is recorded. Since the recorded program data is erased, a free recording area for the next reserved recording can be secured on the recording medium.

  Furthermore, according to the present invention, when the first program title and the second program title do not match, the recorded program data of the second program title on the recording medium is deleted. It is possible to prevent the free area on the recording medium from being reduced due to the unnecessary increase in the recorded data of the program title.

  Next, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram of an embodiment of a program recording apparatus according to the present invention, and FIG. 2 is a flowchart for explaining an operation procedure of the embodiment 1 of the program recording apparatus of FIG. FIG. 1 shows a recording / playback apparatus having both a program recording function and a program playback function.

  First, the configuration of this embodiment and the operation of each part in the first operation example will be described with reference to FIG. The tuner 1 selects and receives a desired digital television broadcast wave. The program information acquisition unit 2 acquires and acquires program information such as a program title, broadcast date and time, and broadcast channel by extracting electronic program guide information included in the digital TV broadcast wave received by the tuner 1. The programmed information is sent to the display means 3 and the reserved recording setting means 4 when the reserved recording is set, and is sent to the program information comparing means 6 when the reserved recording is started.

  The display means 3 notifies the user of the program information by displaying the program information sent from the program information acquisition means 2 on the screen. The scheduled recording setting means 4 is a scheduled recording information including a broadcast channel of an arbitrary reserved program, a recording start date / time, a recording end date / time, a program title, the presence / absence of repeated recording, and its repetition cycle according to the input contents of the user's recording reservation operation. And the generated reserved recording information is transferred to the reserved recording information management means 5.

  The scheduled recording information management means 5 stores the scheduled recording information transferred from the scheduled recording setting means 4, and monitors the current date and time, for example, one minute before the scheduled recording start date and time of the scheduled recording information. At that time, the recording preparation signal and the reserved recording information are output to the recording control means 7, and the recording start signal is output to the recording control means 7 when the current date and time becomes the reserved recording start date and time. Also, the scheduled recording information management means 5 outputs a recording end signal to the recording control means 7 when the current date and time becomes the recording end date and time. Also, the reserved recording information management means 5 deletes the reserved recording information when the reserved recording that has been executed is not a repeated reserved recording but a one-time reserved recording at the end of the reserved recording.

  The program information comparison means 6 acquires program information from the program information acquisition means 2 in accordance with a control signal from the recording control means 7 and also acquires reservation recording information from the reservation recording information management means 5. The program titles included are compared to see if they match, and the comparison result is sent to the recording control means 7.

  The recording control means 7 controls the recording of program data by the recording execution means 8 in accordance with the recording preparation signal, recording start signal, and recording end signal input from the reserved recording information management means 5. Further, when the scheduled recording to be executed is based on repeated recording, control is performed so that program information comparison by the program information comparison means 6 is performed during recording preparation. As a result of comparing the program information, if the program title 1 included in the scheduled recording information matches the program title 2 to be recorded, the size of the free area of the recording medium 14 and the presence or absence of past recorded data of the program title 1 If the free space required for reserved recording cannot be secured, taking into account the playback status of the data, the erasure prohibition setting status, etc., the scheduled recording will be stopped, and if the free space can be secured, the program title will be The recording execution means 8 is controlled so as to delete the past recorded data of one before the start of recording or after the end of recording. On the other hand, as a result of comparing the program information, if the program title 1 included in the scheduled recording information and the program title 2 to be recorded do not match, the size of the free area of the recording medium 14 is confirmed and scheduled recording is performed. If the necessary free space does not exist, scheduled recording is stopped.

  In accordance with a control signal from the recording control means 7, the recording execution means 8 records the program data supplied from the tuner 1 on the recording medium 14 and erases past recorded data of the program title 1. The recorded program management means 9 deletes the deleted program information or registers newly recorded program information in accordance with an instruction from the recording control means 7, and records the recorded program information to the reproduction control means 11 as necessary. Supply. The free space management unit 10 manages free space information on the recording medium 14, updates the free space information according to an instruction from the recording control unit 7, and supplies the free space information to the recording control unit 7 as necessary. .

  The above is the configuration of the recording apparatus, but this embodiment also has the following playback function in addition to this. The reproduction control means 11 determines an area on the recording medium 14 to be reproduced based on the reproduction instruction content from the reproduction setting means 13 and the recorded program information from the recorded program management means 9, and reproduces the area. The playback execution means 12 is controlled as described above.

  The reproduction execution means 12 reproduces the program data of the recorded program recorded in the predetermined area on the recording medium 14 according to the control signal from the reproduction control means 11 and outputs it to the outside. The reproduction setting unit 13 transfers the reproduction instruction content input from the user to the reproduction control unit 11.

  Next, the reserved recording operation in the first embodiment of FIG. 1 will be described with reference to the flowchart of FIG.

  First, when one or more timer recording information is set and the timer recording operation is set to be valid, the apparatus starts the timer recording process, and the timer recording information management unit 5 first starts the current date and time. Is monitored for a predetermined time before the scheduled recording start date and time, for example, one minute before (step S201).

  When the current date and time is one minute before the scheduled recording start date and time, the scheduled recording information management means 5 next checks whether or not the scheduled recording is due to repeated scheduled recording of a continuous program (step S202). Here, if it is a repetitive scheduled recording of a continuous program, the program information acquisition means 2 acquires electronic program information (step S203), and if it is not a repetitive reserved recording of a continuous program, the recording control means 7 is an empty area. Based on the free space information from the management means 10, it is confirmed whether or not there is a free space necessary for executing the reserved recording in the recording medium 14 (step S214).

  As a result of the confirmation in step S214, if the recording medium 14 does not have a free area necessary for executing the reserved recording, the reserved recording cannot be executed, so that the reserved recording is stopped (step S216) and necessary. If there is a free space in the recording medium 14, the recording execution means 8 executes the timer recording (step S215), and then the timer recording process ends (step S217).

  On the other hand, when it is a repetitive scheduled recording of a continuous program and the electronic program information is acquired in step S203, it is determined whether the program title 1 included in the reserved recording information matches the program title 2 included in the acquired electronic program information. The program information comparing means 6 compares the results, and the comparison result is judged by the recording control means 7 (step S204). Here, if the program titles match, the recording control means 7 confirms whether or not there is a free area necessary for executing the reserved recording on the recording medium 14 (step S205). If so, the scheduled recording is executed (step S209).

  On the other hand, if it is determined in step S204 that the program titles do not match, the recording control means 7 is on the recording medium 14 as in the case where the above-described reserved recording is not due to repeated reservation recording of a continuous program. The process after the empty area confirmation determination process (step S214) is performed. In other words, it is a repetitive scheduled recording of a continuous program, but the program that is actually broadcast has been changed to a different one from the program at the time of the scheduled recording due to the circumstances of the broadcasting station or the continuous program that the user wants to record has already ended If the recording medium 14 has a free area, the program data of the program title 2 that is actually broadcast is recorded. However, the past recording data of the program title 1 on the recording medium 14 is recorded. Is not performed, and the timer recording process is terminated (step S217). If there is no free space in the recording medium 14, the scheduled recording process is stopped (step S216).

  On the other hand, if it is determined in step S204 that the program titles match, and further in step S205, the recording control means 7 determines that there is no free space necessary for executing the reserved recording on the recording medium 14, the recording is performed. It is confirmed whether or not past recording data of the program title 1 exists on the medium 14 (step S206). As a result of the confirmation, if there is no past recording data of the program title 1 on the recording medium 14, it is not possible to secure a free area necessary for executing the reserved recording on the recording medium 14. Is canceled (step S216).

  On the other hand, when the recording control means 7 obtains the confirmation result that the past recording data of the program title 1 exists on the recording medium 14 in step S206, the recording control means 7 next stores the past of the program title 1 on the recording medium 14. It is determined whether or not the recorded data is being reproduced or is set to prohibit erasure (step S207). When the past recorded data of the program title 1 on the recording medium 14 is being played back or set to prohibition of deletion, the recorded data cannot be deleted and is necessary for reserved recording on the recording medium 14. Since the free area cannot be secured, the reserved recording process is stopped (step S216).

  If it is determined in step S207 that the past recorded data of the program title 1 on the recording medium 14 is not being reproduced and is not set to be prohibited from being erased, in order to secure a free space necessary for reserved recording, After erasing past recorded data of program title 1 on the recording medium 14 (step S208), reserved recording is executed (step S209).

  While the reserved recording is being executed, it is monitored whether the recording is interrupted (step S210). If the recording is interrupted for some reason, the reserved recording process is stopped (step S216). If the scheduled recording by the recording execution means 8 is normally executed on the recording medium 14 without interrupting the recording, the recording control means 7 records the past recorded data of the program title 1 next. It is confirmed whether or not the medium 14 has already been erased (step S211). Here, if the past recording data has already been erased (including the case where the past recording data does not exist from the beginning), the scheduled recording process is terminated (step S217).

  If the recording control means 7 determines that the past recording data of the program title 1 still exists on the recording medium 14 that has performed the reserved recording and has not been erased (step S211), the past of the program title 1 is recorded. It is determined whether or not the recorded data is currently being played back or is set to prohibit deletion (step S212). If past recorded data is currently being played back or set to delete prohibited, Since the past recorded data cannot be deleted, the reserved recording process is terminated as it is (step S217). If the past recorded data of the program title 1 is not being reproduced or set to be prohibited from being erased in step S212, the recorded data can be erased, so that the free space on the recording medium 14 is increased. Therefore, after deleting the recorded data (step S213), the reserved recording process is terminated (step S217).

  As described above, according to the present embodiment, in the repetitive scheduled recording of a continuous program, when the newly recorded program is a broadcast program different from the continuous program that the user wants to record due to the convenience of the broadcasting station (FIG. 2). If recording of a new program is interrupted for some reason (NO in step S204) (YES in step S210 of FIG. 2), the recorded data of past continuous programs recorded on the recording medium 14 is not erased. Therefore, it is possible to prevent erasure of recorded data against the user's intention. However, when there is no free space necessary for the recording medium 14 at the time of repeated reservation recording of a continuous program, since the past recording data of the past program is erased before the reservation recording processing is started, the reservation recording is performed. When there is an interruption during the reserved recording, the past recording data remains erased.

  Further, in the present embodiment, in the repetitive scheduled recording of a continuous program, the recorded program data on the recording medium 14 is erased from the recording medium when the scheduled recording ends normally without being interrupted ( 2 (step S213 in FIG. 2), a free recording area for the next reserved recording on the recording medium 14 can be secured.

  Next, a reservation recording operation in the second embodiment will be described. Here, in the second embodiment as well, the reserved recording is performed by the program recording apparatus having almost the same configuration as that of the first embodiment shown in FIG. 1 and will be described with reference to the configuration diagram shown in FIG. Since the operations of the first recording control means 7 and the recording execution means 8 are different, these operations will be described first.

  That is, the recording control means 7 of the second embodiment performs the recording execution means 8 according to the recording preparation signal, recording start signal, and recording end signal input from the scheduled recording information management means 5 as in the case of the first embodiment. Controls recording of program data by. Further, when the scheduled recording to be executed is based on repeated recording, control is performed so that program information comparison by the program information comparison means 6 is performed during recording preparation. As a result of comparing the program information, if the program title 1 included in the scheduled recording information matches the program title 2 to be recorded, the size of the free area of the recording medium 14 and the presence or absence of past recorded data of the program title 1 If the free space required for scheduled recording cannot be secured, taking into account the playback status of the data, the deletion prohibition setting status, etc., the scheduled recording is stopped, and if the free space can be secured, the program title is The recording execution means 8 is controlled so as to delete the past recorded data of one before the start of recording or after the end of recording.

  On the other hand, the recording control means 7 of the second embodiment differs from the first embodiment in that the program title 1 included in the scheduled recording information does not match the program title 2 to be recorded as a result of comparing the program information. In the case where the free space required for the reserved recording cannot be secured in consideration of the size of the free space of the recording medium 14 and the presence / absence of past recorded data of the program title 2, the playback state of the data, the deletion prohibition setting state, etc. The recording execution means 8 is controlled so as to cancel the reserved recording and erase the past recording data of the program title 2 before the recording starts or after the recording ends as necessary when the free space can be secured.

  According to the control signal from the recording control means 7, the recording execution means 8 of the second embodiment records the program data supplied from the tuner 1 on the recording medium 14, the past recorded data of the program title 1 and the program title 2. Delete past recorded data.

  Next, the reserved recording operation of the second embodiment will be described with reference to the flowchart of FIG.

  First, when one or more timer recording information is set and the timer recording operation is set to be valid, the apparatus starts the timer recording process, and the timer recording information management unit 5 first starts the current date and time. Is monitored for a predetermined time before the scheduled recording start date and time, for example, one minute before (step S301).

  When the current date and time is one minute before the scheduled recording start date and time, the scheduled recording information management means 5 next checks whether or not the scheduled recording is due to repeated scheduled recording of a continuous program (step S302). Here, if it is a repetitive scheduled recording of a continuous program, the program information acquisition means 2 acquires electronic program information (step S303). If it is not a repetitive reserved recording of a continuous program, the recording control means 7 is an empty area. Based on the free space information from the management means 10, it is confirmed whether or not there is a free space necessary for executing the reserved recording on the recording medium 14 (step S323).

  As a result of the confirmation in step S323, if the recording medium 14 does not have a free area necessary for executing the reserved recording, the reserved recording cannot be executed, so that the reserved recording process is stopped (step S325). If the necessary free area exists in the recording medium 14, the recording execution means 8 executes the timer recording (step S324), and then the timer recording process ends (step S326).

  On the other hand, in the case of repeated scheduled recording of a continuous program and when electronic program information is acquired in step S303, whether or not the program title 1 included in the reserved recording information matches the program title 2 included in the acquired electronic program information. Are compared by the program information comparison means 6, and the comparison result is judged by the recording control means 7 (step S304). Here, if the program titles match, the recording control means 7 confirms whether there is a free area necessary for executing the reserved recording on the recording medium 14 (step S305), and the necessary free area. If it is determined that there is a recording space, the reserved recording is executed (step S309), and if it is determined that there is no necessary free space, it is confirmed whether or not past recording data of the program title 1 exists on the recording medium 14 (Step S306).

  As a result of the confirmation in step S306, when there is no past recording data of the program title 1 on the recording medium 14, it is not possible to secure a free area necessary for executing the reserved recording on the recording medium 14. Then, the scheduled recording process is stopped (step S325). If the past recording data of the program title 1 exists on the recording medium 14, whether the past recording data of the program title 1 on the recording medium 14 is being reproduced next, or whether or not deletion is prohibited Is determined (step S307). When the past recorded data of the program title 1 on the recording medium 14 is being played back or set to prohibition of deletion, the recorded data cannot be deleted and is necessary for reserved recording on the recording medium 14. Since the empty area cannot be secured, the reserved recording process is stopped (step S325).

  If it is determined in step S307 that the recorded data of the program title 1 on the recording medium 14 is not being reproduced and is not set to be prohibited from being erased, in order to secure a free space necessary for reserved recording, After erasing past recorded data of program title 1 on the recording medium 14 (step S308), reserved recording is executed (step S309).

  While the reserved recording is being executed, it is monitored whether the recording is interrupted (step S310). If the recording is interrupted for some reason, the reserved recording process is stopped (step S325). When the scheduled recording by the recording execution means 8 is normally executed on the recording medium 14 without being interrupted, the past recording data of the program title 1 is already deleted on the recording medium 14. It is confirmed whether it is (step S311). Here, if the past recorded data has already been erased (including the case where the past recorded data does not exist from the beginning), the scheduled recording process is terminated (step S326).

  If the recording control means 7 determines that the past recorded data of the program title 1 still exists on the recording medium 14 that has performed the reserved recording and has not been deleted (step S311), the past of the program title 1 is recorded. It is determined whether or not the recorded data is currently being played back or is set to be prohibited from erasure (step S312). Since the past recorded data cannot be deleted, the reserved recording process is terminated as it is (step S326). In step S312, if the past recorded data of program title 1 is not currently being played back and is not set to deletion prohibition, the recorded data can be deleted, so that the free area on the recording medium 14 is increased. Therefore, after the recorded data is deleted (step S313), the reserved recording process is terminated (step S326).

  On the other hand, if the program titles do not match in step S304, the recording control means 7 checks whether there is a free area necessary for executing the reserved recording on the recording medium 14 (step S314). If it is determined that there is a free space, reserved recording is executed (step S318).

  The above operation is the same as that of the first embodiment. However, in the second embodiment, if the program title does not match the program title at the time of reservation, the recording control means 7 does not have a free area necessary for reserved recording in step S314. If it is determined, the reserved recording is not immediately stopped, but it is confirmed whether or not the past recording data of the program title 2 exists on the recording medium 14 (step S315).

  If there is no past recording data of the program title 2 on the recording medium 14 as a result of the confirmation in step S315, it is not possible to secure a free area necessary for executing the reserved recording on the recording medium 14. Then, the scheduled recording process is stopped (step S325). If the past recording data of the program title 2 exists on the recording medium 14, next, whether the past recording data of the program title 2 on the recording medium 14 is being reproduced or set to erasure prohibition. Is determined (step S316). When the past recorded data of the program title 2 on the recording medium 14 is being reproduced or set to prohibition of deletion, the recorded data cannot be deleted and is necessary for reserved recording on the recording medium 14. Since the empty area cannot be secured, the reserved recording process is stopped (step S325).

  If it is determined in step S316 that the recording data of the program title 2 on the recording medium 14 is not being reproduced and is not set to be prohibited from being erased, in order to secure a free space necessary for reserved recording, After erasing the past recorded data of program title 2 on recording medium 14 (step S317), reserved recording of program title 2 different from program title 1 at the time of reservation is executed (step S318).

  While the reserved recording is being executed, it is monitored whether the recording is interrupted (step S319). If the recording is interrupted for some reason, the reserved recording process is stopped (step S325). When the scheduled recording by the recording execution means 8 is normally executed on the recording medium 14 without being interrupted, the past recording data of the program title 2 is already erased on the recording medium 14. (Step S320). Here, if the past recorded data has already been erased (including the case where the past recorded data does not exist from the beginning), the scheduled recording process is terminated (step S326).

  When the recording control means 7 determines that the past recording data of the program title 2 exists in the recording medium 14 on which the reserved recording has been executed and is not erased (step S320), the past recording data of the program title 2 is recorded. It is determined whether or not the recorded data is currently being reproduced or is set to prohibit deletion (step S321). If the past recorded data is currently being reproduced or set to prohibit deletion, the past Since the recorded data cannot be erased, the reserved recording process is terminated as it is (step S326).

  On the other hand, if the past recorded data of the program title 2 is not currently being reproduced and is not set to prohibition of deletion in step S321, the recorded data can be erased, so that the free space on the recording medium 14 is increased. Therefore, after erasing the recorded data (step S322), the scheduled recording process is terminated (step S326).

  As described above, according to the second embodiment, similarly to the first embodiment, in the repetitive scheduled recording of the continuous program, the newly recorded program is a broadcast program different from the continuous program that the user wants to record due to the convenience of the broadcasting station or the like. In some cases, when the continuous program that the user wants to record has already ended and changed to a new program (NO in step S304 in FIG. 3), or when recording of a new program is interrupted for some reason (step in FIG. 3) Since it is possible not to delete the recorded data of the past continuous program recorded on the recording medium 14 at YES in S310, it is possible to prevent the deletion of the recorded data against the user's intention. However, when there is no free space necessary for the recording medium 14 at the time of repeated reservation recording of a continuous program, since the past recording data of the past program is erased before the reservation recording processing is started, the reservation recording is performed. When there is an interruption during the reserved recording, the past recording data remains erased.

  In the second embodiment, similarly to the first embodiment, in the repetitive scheduled recording of the continuous program, the recorded program data on the recording medium 14 is recorded from the recording medium when the scheduled recording ends normally without being interrupted. Since erasure is performed (step S313 in FIG. 3), a free recording area for the next reserved recording on the recording medium 14 can be secured.

  The above features are the same as those in the first embodiment. However, in the second embodiment, when a program with a program title 2 different from the continuous program with the program title 1 that the user wants to record is broadcast, it is recorded on the recording medium. It is confirmed whether or not the recorded program data of the program title 2 exists, and if it exists, the recorded program data is deleted (step S322 in FIG. 3), so that the user can record the program title 1 to be recorded. When a continuous program has already ended and recording of a new program title 2 occurs repeatedly (for example, when it becomes late for the user to notice that the continuous program has ended, If you have noticed the end of the recording but did not change the scheduled recording information setting), the recorded data of program title 2 will increase unnecessarily, and free space on the recording medium That it is possible to prevent the low, the second embodiment of the unique characteristics can be obtained.

  In the above embodiment, for the convenience of explanation, the past recorded program of the program title 1 managed by the recorded program management means 9 with the update cycle in the repeated reservation recording of the continuous program being set for each broadcast. Data and past recorded program data of program title 2 are handled as only one program data for the previous broadcast, respectively, but if the update cycle in repeated scheduled recording is set for each of multiple broadcasts, recording The control means 7 is the oldest program data among the recorded program data of the past multiple times of the program title 1 and the recorded program data of the past multiple times of the program title 2 managed by the recorded program management means 9. Control to erase.

  Further, in the above embodiment, even if the program title acquired before the start of the scheduled recording and the program title specified at the time of the scheduled recording are different, the recording itself is performed if there is a free area necessary for the scheduled recording. 2 (step S215 in FIG. 2 and step S318 in FIG. 3), there is a possibility that a program related to the program reserved for recording is broadcast even if the program title is different (for example, what is normal version broadcasting? This is a process that takes into account the case where the user intends to record a new continuous program that has started in the same channel and at the same time without intentionally changing the reserved recording information. However, as a matter of course, it is also possible not to perform recording itself with an apparatus having the same configuration.

  In the above embodiment, if there is sufficient free space before the reserved recording starts, the past recorded data of the program is erased after the reserved recording ends (steps S213 and FIG. 3 in FIG. 2). It is also possible to adopt a method in which step S313) is not erased when there is sufficient free space, or the user can select whether or not to erase.

  In addition, this invention is not limited to said Example, For example, the computer program which performs each function of each means 2-13 of FIG. 1 with a computer is also included by this invention. In this case, the computer program may be distributed via a network and taken into the computer, or may be recorded on a recording medium and taken into the computer from the recording medium, or may be incorporated into the apparatus as firmware. May be.

It is a system diagram of one example of the present invention. It is a flowchart for demonstrating the operation | movement procedure of Example 1 of the apparatus of this invention of FIG. It is a flowchart for demonstrating the operation | movement procedure of Example 2 of the apparatus of this invention of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tuner 2 Program information acquisition means 3 Display means 4 Scheduled recording setting means 5 Scheduled recording information management means 6 Program information comparison means 7 Recording control means 8 Recording execution means 9 Recorded program management means 10 Free space management means 11 Reproduction control means 12 Playback execution means 13 Playback setting means 14 Recording medium

Claims (6)

In a program recording apparatus that periodically schedules recording of a continuous program on a recording medium by a recording execution means only by once setting recording reservation of a continuous program broadcasted multiple times regularly,
Program information acquisition means for acquiring an electronic program guide from a broadcast signal;
Reservation recording setting means for performing recording reservation for setting reservation recording information such as broadcast channel, broadcast date and time, program title, presence / absence of repeated recording based on the electronic program guide,
Reserved recording information management means for storing and managing the reserved recording information;
Recorded program management means for managing recorded program data which is program information recorded on the recording medium;
Free space management means for managing recordable free space of the recording medium;
The first program title included in the reservation recording information managed by the reservation recording information management means and the second program included in the electronic program guide acquired by the program information acquisition means before the start of reservation recording A comparison means for comparing the title,
A comparison result that the first program title and the second program title match is obtained by the comparison means, and new program data of the second program title is recorded by the free space management means. When it is confirmed that a free area exists in the recording medium, the recording execution unit is controlled to pre-record the new program data of the second program title on the recording medium, When the scheduled recording of the new program data ends without being interrupted, the recorded program of the first program title managed by the recorded program management means is erased from the recording medium, When the reserved recording of the new program data on the recording medium is interrupted, the new program data is deleted without deleting the recorded program data from the recording medium. Program recording apparatus characterized by comprising a recording control means for controlling said recording execution unit to cancel the scheduled recording. The recording control means further includes:
A comparison result that the first program title and the second program title match is obtained by the comparison means, and new program data of the second program title is recorded by the free space management means. When it is confirmed that no free area exists in the recording medium, the recorded program data managed by the recorded program management means is erased from the recording medium, and then the second medium is stored in the recording medium. 2. The program recording apparatus according to claim 1, wherein the recording execution means is controlled so that new program data of a program title is reserved and recorded. The recording control means further includes:
The comparison means obtains a comparison result that the first program title and the second program title do not match, and the empty area management means records new program data of the second program title. And when the recording medium is confirmed to exist in the recording medium, the recording execution means is controlled to pre-record the new program data of the second program title on the recording medium, and the recording medium Regardless of whether or not the scheduled recording of the new program data is terminated without interruption, the recording execution means is controlled so as not to erase the recorded program data of the first program title from the recording medium. The program recording apparatus according to claim 1 or 2, wherein The recording control means includes
The comparison means obtains a comparison result that the first program title and the second program title do not match, and the empty area management means records new program data of the second program title. When the recording of the new program data onto the recording medium is completed without interruption, it is confirmed that the recorded program management means manages the recorded space. The recorded program data of the second program title is erased from the recording medium, and the recorded program data of the second program title is not erased from the recording medium when the reserved recording is interrupted. 4. The program recording apparatus according to claim 3, wherein the execution means is controlled. The recording control means further includes:
The comparison means obtains a comparison result that the first program title and the second program title do not match, and the empty area management means records new program data of the second program title. The recording execution means is controlled to stop reserved recording of new program data of the second program title onto the recording medium when it is confirmed that there is no free space to be recorded on the recording medium. The program recording apparatus according to claim 3 or 4. The recording control means further includes:
The comparison means obtains a comparison result that the first program title and the second program title do not match, and the empty area management means records new program data of the second program title. When it is confirmed that there is no free area on the recording medium, the recorded program data of the second program title managed by the recorded program management means is erased from the recording medium, 5. The program recording apparatus according to claim 3, wherein the recording execution unit is controlled so as to pre-record new program data of the second program title on a recording medium.

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