JP3760941B2 - Data recording / reproducing device - Google Patents

Description

  The present invention relates to a data recording / reproducing apparatus, and more particularly to a data recording / reproducing apparatus capable of easily performing an operation for selecting data to be overwritten and an operation for overwriting when overwriting recorded data.

  Conventionally, various techniques have been disclosed for more easily selecting data to be overwritten and already stored for overwriting of recorded data in a data recording / reproducing apparatus.

  For example, Patent Document 1 and Patent Document 2 disclose a technique for automatically deleting or deleting data that has been reproduced when a recording area is insufficient as a moving image data management method. Has been. Specifically, Japanese Patent Application Laid-Open No. 2004-268831 discloses a technique for securing free space by selecting video data to be erased using the replayed time when the free space of the digital recording unit becomes a predetermined amount or less. Is disclosed. In Patent Document 2, as a program recording method, when a recording area is insufficient, a recorded program that has been viewed is searched, and when there is a recorded program that has been viewed, AV data of the program is deleted. Technology is disclosed.

Further, in Patent Document 3 and Patent Document 4, it is possible to specify a video file to be overwritten in advance for video data that has already been recorded, or to specify a priority order for storage in advance. Is disclosed. Specifically, in Patent Document 3, a list of video files already recorded on a recording / reproducing disc is displayed as a recording menu screen in the recording reservation mode in the video recording / playback apparatus. A technique is disclosed in which video data is recorded in an area of an arbitrary video file by selecting an arbitrary video file on the screen. Patent Document 4 discloses a recording / playback type in a video recording / playback apparatus. A technique is disclosed in which a user can give priority to video data recorded on a disc, and video data is overwritten based on the priority and the order of recording date and time. .
Japanese Patent Laid-Open No. 2002-210017 JP 2001-167522 A Utility Model Registration No. 3080433 JP 2002-305706 A

  However, in the techniques disclosed in Patent Document 1 and Patent Document 2, it is considered that there is a problem that data that the user desires to save is erased by overwriting although it has been reproduced. On the other hand, in the techniques disclosed in Patent Literature 3 and Patent Literature 4, overwriting of data that the user desires to save is avoided, but the user performs an operation or priority order for designating a video file to be overwritten in advance. There is another problem that it is not convenient.

  The present invention has been devised in view of such circumstances, and the purpose thereof is to enable the user to determine a file to be overwritten and to make the operation required by the user simpler. Another object is to provide a data recording / reproducing apparatus.

  A data recording / reproducing apparatus according to an aspect of the present invention includes: a receiving unit that receives video data; a recording unit that records the video data received by the receiving unit as a file for each program; A reproduction instruction means for instructing reproduction of a file, a reproduction means for reproducing the certain file when the reproduction instruction means instructs reproduction of a certain file stored in the storage means, and a recording means Overwriting instruction means for instructing overwriting of a recorded file, and when the overwriting instruction means instructs to overwrite the file when the reproducing means is reproducing the certain file, the recording means By recording the video data received by the receiving means in a certain area where a certain file is recorded, the certain file is recorded. Overwriting execution means for performing an operation for overwriting, and time designation means for designating a recording start time that is a time to start recording video when the overwriting instruction is instructed by the overwriting instruction means, Setting means for setting a first setting for permitting designation of the recording start time by the time designation means and a second setting for not permitting, wherein the time designation means is configured to set the first setting by the setting means. Only when the recording start time is specified, and the overwriting means is an operation for overwriting the certain file when the overwriting instruction is instructed by the overwriting instruction means. If the first setting is set by the setting means, recording of the video received by the receiving means to the certain area is started. If the second setting is set by the setting means, the image received by the receiving means from the time when the overwriting is instructed by the overwriting instructing means is executed. The operation of recording the image in the certain area is executed.

  According to a certain aspect of the present invention, when a file is instructed to be overwritten when a certain file is being reproduced, an operation for overwriting the certain file is executed. Further, according to the setting of the setting means, the file being reproduced can be immediately used as an overwriting target, or can be used as an overwriting target file in so-called recording reservation.

  A data recording / reproducing apparatus according to another aspect of the present invention includes a receiving unit that receives video data, a recording unit that records video data received by the receiving unit as a file for each program, and a recording unit that records the video data. Reproduction instruction means for instructing reproduction of the file, reproduction means for reproducing the certain file when the reproduction instruction means instructs reproduction of the certain file stored in the storage means, and the recording means Overwriting instruction means for instructing overwriting of the file recorded on the recording medium, and when the overwriting instruction is instructed by the overwriting instruction means when the reproducing means is reproducing the certain file, the recording means The certain file is recorded by recording the video data received by the receiving means in a certain area where the certain file is recorded. Characterized in that it comprises a overwrite executing means for executing an operation for overwriting.

  According to another aspect of the present invention, when a file is instructed to be overwritten when a certain file is being reproduced, an operation for overwriting the certain file is executed.

  In the data recording / reproducing apparatus of the present invention, the overwriting means receives the overwriting as an operation for overwriting the certain file when the overwriting is instructed by the overwriting instructing means. It is preferable to execute an operation of recording an image in the certain area.

  As a result, when a file is instructed to be overwritten by the overwriting instruction means during reproduction of the certain file, the certain file can be immediately overwritten.

  Further, the data recording / reproducing apparatus of the present invention further comprises time specifying means for specifying a recording start time which is a time to start recording video when the overwriting of the file is instructed by the overwriting instruction means. The overwriting means preferably executes an operation for starting recording of the video received by the receiving means in the certain area from the recording start time as an operation for overwriting the certain file.

  Thus, by instructing overwriting by the overwriting instructing means during reproduction of a certain file, the certain file can be made a file to be overwritten in so-called recording reservation.

  The data recording / reproducing apparatus of the present invention further comprises setting means for setting a first setting for permitting designation of the recording start time and a second setting for not permitting designation of the recording start time to the time designation means. Specifies the recording start time only when the first setting is set by the setting means, and the overwriting execution means performs the overwriting instruction means as an operation for overwriting the certain file. If the first setting is set by the setting means when the overwriting of the file is instructed by, the recording start time is recorded in the certain area of the video received by the receiving means. If the second setting is set by the setting unit, the operation is started from when the overwriting is instructed by the overwriting instructing unit. Performing an operation of recording an image receiving unit is receiving the certain region.

  As a result, the file being played can be used immediately as an overwriting target or can be overwritten in a so-called recording reservation, depending on the setting of the setting means.

  According to the present invention, when a file is instructed to be overwritten while a certain file is being reproduced, the designation of the file to be overwritten and the operation for overwriting are executed. Therefore, in the data recording / reproducing apparatus, the user can determine the file to be overwritten, and the operation required for the user for the operation for overwriting becomes simple.

  Further, according to the present invention, the file being played can be used immediately as a target of overwriting, or can be used as a file to be overwritten in so-called recording reservation. Can be improved.

[First Embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of an information recording / reproducing apparatus 100 which is a first embodiment of a data recording / reproducing apparatus of the present invention.

  The information recording / reproducing apparatus 100 includes a system control circuit 10 that controls the overall operation of the information recording / reproducing apparatus 100, and a timer 23 for the system control circuit 10 to check the time.

  In the information recording / reproducing apparatus 100, when a digital broadcast channel designation signal is supplied from the system control circuit 10, the tuner 11 receives a digital broadcast wave of the designated channel. At this time, the tuner 11 obtains an MPEG (Moving Picture Experts Group) signal by demodulating the received digital broadcast wave, and supplies this to the hard disk device 12 as an MPEG signal M1. The tuner 11 is supplied with a channel designation signal for analog television broadcasting (NTSC (National Television Standards Committee), PAL (Phase Alternation by Line), or SECAM (SEquential Couleur A Memoire)) from the system control circuit 10. If it is, the analog television broadcast wave of the designated channel is received. At this time, the tuner 11 supplies a television signal obtained by demodulating the received analog television broadcast wave to the MPEG encoder 14. The MPEG encoder 14 supplies a signal obtained by subjecting the television signal to MPEG encoding processing to the hard disk device 12 as an MPEG signal M2.

  The hard disk device 12 supplies the reproduction MPEG signal RM to the MPEG decoder 17. The MPEG decoder 17 performs an MPEG decoding process on the MPEG signal supplied from the hard disk device 12 to obtain a video signal and supplies it to the selector 18 as a video signal DAV.

  An OSD (On Screen Display) image generation circuit 19 generates a message image signal DC to display an image corresponding to various message display commands supplied from the system control circuit 10, and supplies this to the selector 18. The selector 18 selectively selects one of the video signal DAV and the message image signal DC according to the selection signal supplied from the system control circuit 10 and supplies it to the display device 200.

  The display device 200 performs image display based on the video signal DAV or message image signal DC supplied from the information recording / reproducing device 100.

  The operation device 22 receives various operations such as an operation for designating a broadcast channel and an operation for designating a file to be reproduced from recorded files from the user, and various operation signals corresponding to the operations are sent to the system control circuit 10. To supply. Note that the operating device 22 includes, for example, a remote controller that is separated from the casing of the information recording / reproducing device 100.

  FIG. 2 shows a plan view of the operating device 22.

  The operation device 22 is a numeric keypad 229 that is used to input numbers 0 to 9 when specifying a broadcast channel, etc., and a switch that is operated to switch between time-shift playback and recorded file playback, which will be described later. Key 220 is included. Further, the operation device 22 plays back a recorded file in order to start / stop / pause a fast-forward key 228 / rewind key 227 operated to fast-forward / rewind the playback position. A reproduction key 224 / stop key 225 / pause key 226 operated by Further, the operation device 22 is operated to input a power key 221 for switching ON / OFF of power supply to the information recording / reproducing device 100 and a user's intention to determine the content displayed on the screen or the like. A determination key 222 and a recording key 223 operated to perform a recording operation are included.

  FIG. 3 schematically shows the contents of the storage area of the hard disk 120 of the hard disk device 12.

  The hard disk 120 includes a time shift area 121 that is a ring buffer and a recording area 122 for recording information for a long time. Note that the sizes of the time shift area 121 and the recording area 122 in the hard disk 120 are determined based on, for example, information input via the operation device 22 by the user. In the hard disk 120, the position of the time shift area 121 and the position of the recording area 122 are managed by recording addresses of the areas in the memory 10 </ b> A in the system control circuit 10.

  The information recording / reproducing apparatus 100 performs a recording operation, a time shift reproduction operation, and a recorded file reproduction operation. The recording operation is an operation for recording the MPEG signal M1 or M2 obtained by receiving in the tuner 11 in the recording area 122. In the time shift reproduction operation, the MPEG signal M1 or M2 is recorded in the time shift area 121, the signal recorded in the time shift area 121 is reproduced as a reproduction MPEG signal RM, and the signal is supplied to the MPEG decoder 17 for display. This is an operation for displaying an image on the apparatus 200.

  The system control circuit 10 obtains a recording speed signal SW corresponding to the bit rate from the MPEG signal M1 or M2 obtained by receiving it at the tuner, and obtains it from a built-in register (a register not shown in the memory 10A). ) And the pickup device 1200 is operated at a speed corresponding to the recording speed signal SW to record a signal in the time shift area 121 or the recording area 122.

  The recorded file reproduction operation is an operation in which the signal recorded in the recording area 122 is reproduced as a reproduction MPEG signal RM, supplied to the MPEG decoder 17 and displayed on the display device 200.

  FIG. 4 schematically shows a recording position and a reproduction position on the hard disk 120 when time-shift reproduction is performed in the information recording / reproducing apparatus 100.

  In time shift reproduction, a recording operation is performed on the write point WP in the time shift area 121 of the hard disk 120, and a reproduction operation is performed on the lead point RP. Since the time shift area 121 is configured by a ring buffer, the recording operation in the time shift reproduction is performed so that the time shift area 121 is repeatedly used even if it is performed to the end of the time shift area 121. In the information recording / reproducing apparatus 100, when the switching key 220 is operated during such time-shift reproduction, the program recorded in the recording area 122 is reproduced.

  FIG. 4 shows a state where N files of areas 122A, 122B, 122C,... 122N are recorded in the recording area 122. A file refers to video data for each program. One program is intended for video data recorded from when a recording operation is started to when the recording operation is completed.

  The system control circuit 10 includes a memory 10A therein. The contents stored in the memory 10A include information on each program recorded in the recording area 122 as schematically shown in a table format in FIG. As understood from FIG. 5, the program information recorded in the recording area 122 stored in the memory 10 </ b> A includes the title of the program, the recording start position of the program in the recording area 122, and the program. This is information that is associated with the length of time (recording time). Instead of the recording time of the program, the recording end position in the recording area 122 of the program may be associated. This is because the recording time can be calculated from the time information of the recording end position and the recording start position.

  Also, FIG. 5 shows information about a plurality of programs including a program with the title “AAA” and a program with the title “BBBB”. Each program corresponds to video data recorded in any one of the areas 122A, 122B, 122C,.

  Further, the memory 10A stores information about a recording reservation made by a known technique, as schematically shown in a table form in FIG. 6, for example. As can be understood from FIG. 6, the information about the recording reservation includes the recording channel (recording channel), the recording date (recording date), the recording start time (recording start time), and the recording end. This is information stored in a state where time (recording end time) is associated with each other. As can be understood from FIG. 6, the recording reservation information may include a plurality of sets of recording channel, recording date, recording start time, and recording end time, or only one set. May be included. When no recording reservation is set by the user, no information about the recording reservation is recorded in the table as shown in FIG.

  As information about the recording reservation, the length of time for recording may be stored instead of the time for ending recording. This is because the recording end time can be calculated from the recording start time and the length information of the recording time.

  Here, a process executed by the system control circuit 10 after the power-on of the information record generating apparatus 100 is started will be described with reference to FIG. FIG. 7 is a flowchart of a main routine executed by the system control circuit 10.

  The system control circuit 10 checks the timer 23 in step S1 (hereinafter, “step” is omitted) when the power is turned on to the information recording / generating apparatus 100 by operating the power key 221 or the like. Then, it is determined whether or not the current time is the recording start time of the recording date of the recording reservation stored in the memory 10A. If so, a process corresponding to the recording reservation (reserved recording process) is performed in S2. After execution, the process returns to S1. On the other hand, if it is determined that it is not the recording start time, the process proceeds to S3. The reserved recording process is a process for recording video data of a channel designated by the recording channel in the recording area 122.

  In S3, the system control circuit 10 executes a time shift reproduction process for performing the above time shift reproduction. In S3, processing such as reception of a signal corresponding to a channel to be received by the tuner 11 is executed in response to information such as a channel change input from the operation device 22.

  Next, the system control circuit 10 determines whether or not the switching key 220 has been operated in S4. If it is determined that the switching key 220 has been operated, the process proceeds to S5. On the other hand, if it is determined that this is not the case, a process corresponding to the operated key is performed in S6, and the process returns to S1.

  In S5, the system control circuit 10 executes the recorded video reproduction process and returns the process to S1.

  Here, the detailed operation of the system control circuit 10 in the recorded video reproduction process executed in S5 will be described with reference to FIG. FIG. 8 is a flowchart of a subroutine for recorded video reproduction processing.

  In the recorded video reproduction processing, the system control circuit 10 first displays a list of files recorded in the recording area 122 by referring to the storage contents in the memory 10A as shown in FIG. 200.

  Next, the system control circuit 10 accepts designation of a file to be reproduced from the user in S502. Note that the user can input information specifying a file to be reproduced to the information recording / reproducing apparatus 100 by appropriately operating the operation apparatus 22, for example. Note that the file designated here is referred to as an Mth file recorded in the recording area 122 for convenience.

  Next, in step S503, the system control circuit 10 executes reproduction of the file (Mth file) received in step S502.

  In step S504, the system control circuit 10 determines whether the recording key 223 has been pressed for a long time. “Long press” means, for example, that the button is continuously pressed for a predetermined time (eg, 3 seconds) or longer. If it is determined that the recording key 223 has been pressed for a long time, the process proceeds to S505. If it is determined that the recording key has not been pressed for a long time, the process proceeds to S509.

  In step S505, the system control circuit 10 stops the file reproduction operation that has been executed so far, and in step S506, executes the recording operation. In the recording operation at this time, the video of the channel selected in the time-shift playback process is recorded immediately before shifting to the recorded video playback process of S5 (see FIG. 7). In the recording operation at this time, the video of the channel is recorded from the start position of the area in the recording area 122 where the file whose reproduction was stopped in S505 was recorded. That is, the recording operation in S506 corresponds to overwriting of the file whose reproduction has been stopped in S506, that is, the file that has been reproduced until immediately before.

  In step S507, the system control circuit 10 determines whether the recording time of the file to be overwritten has elapsed in step S506 after starting the recording operation in step S506. If it is determined that the time has elapsed, the system control circuit 10 stops the recording operation in S508 and returns the process. The system control circuit 10 recognizes the recording time of the file to be overwritten by referring to the recorded program information (see FIG. 5) in the memory 10A.

  On the other hand, in S509, the system control circuit 10 determines whether or not playback of the currently played file has ended, and if it determines that it has ended, determines whether or not the next file is recorded in the recording area 122. to decide. If it is determined that there is the next file, the system control circuit 10 updates M by 1 in S513, and returns the process to S503. On the other hand, when determining that there is no next file, the system control circuit 10 returns the processing.

  In S509, when the system control circuit 10 determines that the reproduction of the currently reproduced file has not been completed yet, in S510, the system control circuit 10 determines whether or not the stop key 225 has been operated. If it is determined, the process returns to S503 as it is, and if it is determined that it has been operated, the file reproduction operation is stopped and the process returns in S511.

  In the present embodiment described above, when the recording key 223 is pressed for a long time while the Mth file recorded in the recording area 122 is being played back, the time shift playback is performed immediately before that point. The video of the channel can be recorded in the area where the Mth was recorded. Note that the length of time during which video is recorded based on such an operation is the same as the length of time during which the Mth was recorded. That is, for example, if the M-th file is recorded with an image of a length of one hour, if the recording key 223 is pressed and held during the reproduction of the M-th file, the recording operation is performed for one hour from there. Executed.

  In addition, during the recording operation started by pressing the recording key 223 for a long time, the display device 200 restarts the reproduction operation stopped in step S505 so that the M-th is reproduced from the next. Or a video of a channel in which recording is being performed may be displayed.

  When the video following the reproduction of the Mth file is displayed, as schematically shown in FIG. 9, the recording point (WP) and the reproduction are performed in the same file in the recording area 122 (in the area 122M). There will be points (RP). Note that the playback point (RP) sequentially moves rightward from the point (XP) that was played when the recording key 223 was pressed for a long time.

  Also, it is good when the video of the channel on which recording is being performed is displayed. When the video following the reproduction of the Mth file is displayed on the display device 200, the recording point (WP) and the reproduction point (RP) are close as schematically shown in FIG. That is, the video recorded in the area 122M is immediately played back.

  In addition, when the video following the playback of the Mth file is displayed, the video by restarting the playback and the video recorded in the recording area 122 are displayed on the display device 200 using PinP (Picture in Picture). ) On the screen, either one may be displayed on a large screen and the other may be displayed on a small screen.

[Second Embodiment]
The data recording / reproducing apparatus of the present embodiment has a configuration similar to that of the information recording / reproducing apparatus 100 described in the first embodiment.

  In the first embodiment, the information recording / reproducing apparatus 100 starts a recording operation by long-pressing the recording key 223, but makes a recording reservation by long-pressing the recording key 223. That is, the information recording / reproducing apparatus 100 of the present embodiment differs from the information recording / reproducing apparatus 100 of the first embodiment only in the content of the recorded video reproduction process. Accordingly, only the contents of the recorded video reproduction process executed as a subroutine of S5 will be described here.

  FIG. 11 is a flowchart of a subroutine for recorded video reproduction processing according to the present embodiment. In the recorded video reproduction processing of the present embodiment, the system control circuit 10 first executes the same processing as S501 to S504 in the first embodiment as S601 to S604. That is, a list of files is displayed in S601, designation of a file to be played back is accepted in S602, the designated file is played back in S603, and whether or not the recording key 223 is pressed for a long time in S604 is determined. to decide.

  If the system control circuit 10 determines in S604 that the recording key 223 has been pressed for a long time, the system control circuit 10 proceeds to S605.

  In step S605, the system control circuit 10 stops the file reproduction operation, and in step S606, displays a screen for making a recording reservation on the display device 200. For example, as shown in FIG. 12, the screen for making a recording reservation is a channel for recording (recording channel: CH), a date for recording (recording date), and a time for starting recording (start time). And a time for ending the recording (end time). The system control circuit 10 displays the channel selected in the previous time-shift playback process, the current date, and the time by default on the recording channel, the recording date, and the start time on the screen for recording reservation. May be.

  In step S607, the system control circuit 10 accepts recording reservation information. Receiving recording reservation information is a process of accepting input of a recording channel, a recording date, and a start time. The user can input such information using the operation device 22 or the like. In this embodiment, only one of the start time and the end time can be input. This is a recording operation reservation realized by overwriting the M-th file that has been played back immediately before the processing of S605 by the recording reservation made in accordance with the processing after S605. This is because the input of either one determines the other based on the recording time of the Mth file (see FIG. 5).

  In S608, the system control circuit 10 stores the recording reservation information accepted in S607 in the memory 10A as recording reservation information as shown in FIG. 6, and returns the process.

  On the other hand, if the system control circuit 10 determines in S604 that the recording key 223 has not been pressed for a long time, the system control circuit 10 proceeds to S609. Note that the processing of S609 to S613 is the same as the processing of S509 to S513. In other words, if the stop key 225 is operated (YES in S610) before the reproduction of the Mth file is completed (NO in S609), the reproduction operation is stopped (S611), and the process is returned, but is stopped. If the key 225 is not operated (NO in S610), the process returns to S603. Further, when the reproduction of the Mth file is completed (YES in S609), if the next file is recorded in the recording area 122 (YES in S612), M is updated by 1 (S613), and the process goes to S603. Processing is returned. If the next file is not in the recording area 122 (NO in S612), that is, if the last file being played back is the last file, the process is returned as it is.

[Third Embodiment]
The data recording / reproducing apparatus of the present embodiment has a configuration similar to that of the information recording / reproducing apparatus 100 described in the first embodiment.

  The information recording / reproducing apparatus 100 according to the present embodiment detects the time of the long press of the recording key 223 while the recording operation is started by the long press of the recording key 223 in the first embodiment. Depending on the long press time, it is determined whether to start the recording operation at that time or to make a recording reservation. That is, the information recording / reproducing apparatus 100 of the present embodiment differs from the information recording / reproducing apparatus 100 of the first embodiment only in the content of the recorded video reproduction process. Accordingly, only the contents of the recorded video reproduction process executed as a subroutine of S5 will be described here.

  FIG. 13 and FIG. 14 are flowcharts of a subroutine of recorded video reproduction processing according to the present embodiment. In the recorded video reproduction process of the present embodiment, the system control circuit 10 first executes the same processes as S501 to S504 in the first embodiment as S701 to S704. That is, a list of files is displayed in S701, designation of a file to be reproduced is accepted in S702, the designated file is reproduced in S703, and whether or not the recording key 223 is pressed for a long time in S604 is determined. to decide.

  If the system control circuit 10 determines in S704 that the recording key 223 has been pressed for a long time, the system control circuit 10 further detects the long pressing time. If the long pressing time is 3 seconds or more and less than 5 seconds, the system control circuit 10 proceeds to S705. If it is equal to or greater than 2 seconds, the process proceeds to S714.

  The processes in S705 to S708 are the same as the processes in S505 to S508. That is, after the playback operation is stopped, the recording operation is executed for the same length as the recording time of the Mth file for which playback has been stopped, then the recording operation is stopped, and the process is returned.

  On the other hand, the process of S714-S717 is the same process as the process of S605-S608 demonstrated in 2nd Embodiment. That is, after the reproduction operation is stopped, the recording reservation for overwriting the Mth file is set, and then the process is returned.

  That is, in the present embodiment, by determining the long press time of the recording key 223, the recording operation cannot be reserved and the recording operation is started as it is (S705 to S708), or the recording reservation is possible (S714). To S717).

  If the system control circuit 10 determines in step S704 that the recording key 223 has not been pressed for a long time, the system control circuit 10 advances the process to step S709. Note that the processing of S709 to S713 is the same as the processing of S509 to S513. That is, if the stop key 225 is operated before the reproduction of the Mth file is finished, the reproduction operation is stopped and the process is returned. If the stop key 225 is not operated, the process returns to S703. It is. When the reproduction of the Mth file is completed, if the next file is recorded in the recording area 122, M is updated by 1 and the process returns to S703. If the next file is not in the recording area 122, that is, if the last file being played back is the last file, the process is returned as it is.

  Each embodiment disclosed this time must be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. Moreover, each embodiment can be implemented independently or in combination as much as possible.

It is a figure which shows the structure of the information recording / reproducing apparatus of the 1st Embodiment of this invention. It is a top view of the operating device of FIG. It is a figure which shows typically the content of the storage area of the hard disk of the hard-disk apparatus of FIG. 1 schematically shows a recording position and a reproduction position on a hard disk when time-shift reproduction is performed in the information recording / reproducing apparatus of FIG. It is a figure which shows typically an example of the memory | storage aspect of the information of the video recording program memorize | stored in the memory in the system control part of FIG. It is a figure which shows typically an example of the memory | storage aspect of the recording reservation information memorize | stored in the memory in the system control part of FIG. It is a flowchart of the main routine which the inside of the system control part of FIG. 1 performs. It is a flowchart of the subroutine of the recorded video reproduction process of FIG. FIG. 9 is a diagram schematically illustrating an example of an image recording position and a reproduction position when a recording key is operated during reproduction of information recorded in a recording area in the process of FIG. 8. FIG. 9 is a diagram schematically illustrating another example of an image recording position and a reproduction position when a recording key is operated during reproduction of information recorded in a recording area in the process of FIG. 8. It is a flowchart of the subroutine of the recorded video reproduction | regeneration processing of FIG. 7 performed in the information recording device of the 2nd Embodiment of this invention. FIG. 12 is a diagram showing an example of a screen for making a recording reservation displayed on the display device in the process of FIG. 11. It is a flowchart of the subroutine of the recorded video reproduction | regeneration processing of FIG. 7 performed in the information recording device of the 3rd Embodiment of this invention. It is a flowchart of the subroutine of the recorded video reproduction | regeneration processing of FIG. 7 performed in the information recording device of the 3rd Embodiment of this invention.

Explanation of symbols

  10 system control circuit, 10A memory, 11 tuner, 12 hard disk device, 18 selector, 14 MPEG encoder, 17 MPEG decoder, 19 OSD image generation circuit, 22 operation device, 23 timer, 30 DVD recording / reproducing device, 31 DVD, 100 information Recording / playback device, 120 hard disk, 121 time shift area, 122 recording area, 200 display device, 220 switching key, 221 power key, 222 enter key, 223 recording key, 224 playback key, 225 stop key, 229 numeric keypad.

Claims (5)

Receiving means for receiving video data;
Recording means for recording the video data received by the receiving means as a file for each program;
Reproduction instruction means for instructing reproduction of the file recorded in the recording means;
Reproduction means for reproducing a certain file when the reproduction instruction means instructs reproduction of the certain file stored in the storage means;
Overwrite instruction means for instructing overwriting of a file recorded in the recording means;
When the overwriting instruction unit gives an instruction to overwrite the file while the reproducing unit is reproducing the certain file, an area in which the certain file is recorded in the recording unit Overwriting execution means for executing an operation for overwriting the certain file by recording video data received by the receiving means,
A time designating unit for designating a recording start time which is a time to start recording a video when the overwriting of the file is instructed by the overwriting instructing unit;
Setting means for setting a first setting for permitting designation of the recording start time by the time designation means and a second setting for not permitting;
The time designation means designates the recording start time only when the first setting is set by the setting means,
The overwriting execution unit is configured to set the first setting by the setting unit when the overwriting of the file is instructed by the overwriting instruction unit as an operation for overwriting the certain file. Performs an operation for starting recording of the video received by the receiving unit in the certain area from the recording start time, and when the second setting is set by the setting unit, A data recording / reproducing apparatus that executes an operation of recording the video received by the receiving unit in the certain area from when the overwriting is instructed by the overwriting instructing unit. Receiving means for receiving video data;
Recording means for recording the video data received by the receiving means as a file for each program;
Reproduction instruction means for instructing reproduction of the file recorded in the recording means;
Reproduction means for reproducing a certain file when the reproduction instruction means instructs reproduction of the certain file stored in the storage means;
Overwrite instruction means for instructing overwriting of a file recorded in the recording means;
When the overwriting instruction unit gives an instruction to overwrite the file while the reproducing unit is reproducing the certain file, an area in which the certain file is recorded in the recording unit A data recording / reproducing apparatus comprising: an overwriting execution unit that executes an operation for overwriting the certain file by recording video data received by the receiving unit.   The overwriting means, as an operation for overwriting the certain file, is an operation for recording the video received by the receiving means in the certain area from when the overwriting is instructed by the overwriting instruction means. The data recording / reproducing apparatus according to claim 2, which is executed. A time designating unit that designates a recording start time that is a time to start recording a video when the overwriting instruction unit instructs to overwrite the file;
The overwriting execution unit executes an operation for starting recording of the video received by the receiving unit in the certain area from the recording start time as an operation for overwriting the certain file. 2. The data recording / reproducing apparatus according to 2. A setting unit that sets a first setting that permits the designation of the recording start time and a second setting that does not permit the time designation unit;
The time designation means designates the recording start time only when the first setting is set by the setting means,
The overwriting execution unit is configured to set the first setting by the setting unit when the overwriting of the file is instructed by the overwriting instruction unit as an operation for overwriting the certain file. Performs an operation for starting recording of the video received by the receiving unit in the certain area from the recording start time, and when the second setting is set by the setting unit, 5. The data recording / reproducing apparatus according to claim 4, wherein an operation of recording the video received by the receiving unit in the certain area from when the overwriting is instructed by the overwriting instructing unit.

Images