JP2004088634A - Digital recording and playback device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a digital recording and reproducing apparatus in which a new program is prevented from being recorded while being overwritten on a recorded program that a user does not view when recording a program while using a function for repeated recording of a program to be periodically broadcasted in a determined time zone. <P>SOLUTION: A reproduction status of a program recorded by programming repeated recording is stored and when the recorded program is reproduced, a program which is programmed to be recorded is recorded while being overwritten on the recorded program but when the recorded program is not reproduced, separately from the recording area, a new recording area is secured to record the program which is programmed to be recorded. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a digital recording / reproducing apparatus using a recording medium that can be accessed randomly, and more particularly, to a digital recording / reproducing apparatus that repeatedly records a program by making use of the feature of random access.
[Prior art]
Conventionally, as a digital recording / reproducing apparatus in this field, a digital recording / reproducing apparatus using a randomly accessible recording medium such as a hard disk has been proposed. This has a repetitive recording function that automatically overwrites programs in the same time zone on the same area every week and repeats recording, and programs such as dramas broadcasted in the same time zone are automatically recorded by one recording reservation. It is something that can be recorded.
[0002]
[Problems to be solved by the invention]
However, such a conventional digital recording / reproducing apparatus using the repetitive recording function automatically records a program in the same time zone on the same area every week and records the program. Regardless of whether the program was viewed or not, the program of the next week was overwritten and recorded, and if the user did not watch the recorded program of the previous week, the recorded program of the previous week was rewritten by the user. Had a problem that the user could not watch.
[0003]
The present invention has been made in view of the above-described problems, and when recording a program using the repetitive recording function, recording reservation is automatically made based on whether the user has viewed the recorded program. It is an object of the present invention to provide a digital recording / reproducing apparatus capable of changing a recording position of a recorded program.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, a digital recording / reproducing apparatus according to the present invention has a recording area for repeatedly recording a program broadcast at a regularly determined time zone in a randomly accessible recording medium. In a digital recording / reproducing apparatus having a reservation recording function of previously reserving and repeatedly recording a program reserved for recording in the reserved recording area, input means for externally inputting a command, and input to the input means Reading means for reproducing a program recorded in the recording area based on the reproduction command and recording reproduction information indicating that the program has been reproduced on the recording medium; and Playback state determination means for determining whether or not the program recorded on the recording medium has already been reproduced; writing means for writing data to the recording medium; And a CPU for controlling the reproduction state determination means when the program reserved for recording is recorded in the previously secured recording area and then the program is recorded repeatedly. When it is determined that the program recorded in the recording area has already been reproduced, the program reserved for recording is overwritten on the previously reserved recording area, and the program recorded in the recording area is not recorded. When the reproduction is determined, a new recording area is secured and the program is recorded in the new recording area.
[0005]
Further, the digital recording / reproducing apparatus according to the present invention is characterized in that the reading means releases the recording area after the program recorded in the newly secured recording area is reproduced. .
[0006]
Further, the digital recording / reproducing apparatus according to the present invention, when the recording medium holds the recording date of the recorded program, and when it is determined that the program recorded in the recording area is not reproduced, a new storage is performed. When an area cannot be secured, the CPU overwrites a program reserved for recording on a recording area where a program with an old recording date is recorded.
[0007]
Further, the digital recording / reproducing apparatus according to the present invention previously secures a recording area for repeatedly recording a program broadcast in a regularly determined time zone in a randomly accessible recording medium. In a digital recording and playback device having a scheduled recording function of repeatedly recording a program reserved for recording for the recording area, based on input means for inputting a command from the outside and a playback command input to the input means, While reading the program recorded in the recording area, reading means for recording reproduction information indicating that the program has been reproduced on the recording medium, based on the reproduction information, the program recorded in the recording area A reproduction state determination unit for determining whether or not the reproduction has been completed; a writing unit for writing data to the recording medium; and a CPU for controlling the entire apparatus. Wherein the CPU secures one or more spare recording areas having the same recording time as the previously secured recording area in the recording medium in advance, separately from the previously secured recording area, After recording the program reserved for recording in the reserved recording area, if the program is to be recorded again and again, the CPU records the program recorded in the recording area based on the judgment result of the reproduction state judging means. When it is determined that the program has been reproduced, the program reserved for recording is overwritten in the previously secured recording area, and the program is recorded. When it is determined that the program recorded in the recording area is not reproduced, the one or more programs are recorded. The program is recorded in one of the spare recording areas.
[0008]
Further, in the digital recording / reproducing apparatus according to the present invention, the recording medium holds a recording date of a recorded program, and a program is recorded in all of the recording area and the one or more spare recording areas, and the program is recorded. When all of the programs have not been played back, the CPU overwrites the program reserved for recording on the recording area where the program with the old recording date is recorded, and records the program. .
[0009]
Further, the digital recording / reproducing apparatus according to the present invention previously secures a recording area for repeatedly recording a program broadcast in a regularly determined time zone in a randomly accessible recording medium. In a digital recording and playback device having a scheduled recording function of repeatedly recording a program reserved for recording for the recording area, based on input means for inputting a command from the outside and a playback command input to the input means, While reading the program recorded in the recording area, reading means for recording reproduction information indicating that the program has been reproduced on the recording medium, based on the reproduction information, the program recorded in the recording area A reproduction state determination unit for determining whether or not the reproduction has been completed; a writing unit for writing data to the recording medium; and a CPU for controlling the entire apparatus. And wherein the CPU secures one or more common recording areas having a fixed storage capacity in common for repeated recording reservations in the recording medium in advance, separately from the previously secured recording areas. If the program reserved for recording in the recording area is recorded and then the program is recorded again and again, the CPU reproduces the program recorded in the recording area based on the judgment result of the reproduction state judging means. When it is determined that the recording has been completed, the program reserved for recording is overwritten on the previously reserved recording area, and the program recorded on the recording area is not reproduced. The program is characterized by changing the bit rate and recording the program so that the program reserved for recording fits in any of the recording areas.
[0010]
Further, in the digital recording / reproducing apparatus according to the present invention, the recording medium holds a recording date of a recorded program, and a program is recorded in all of the recording area and the one or more common recording areas. Are not played back, the CPU overwrites the program reserved for recording on the recording area where the program with the oldest recording date is recorded.
[0011]
Further, the digital recording / reproducing apparatus according to the present invention is characterized in that when repeatedly recording a program broadcast in a regularly determined time zone, the CPU temporarily stops the program based on a command input to the input means. In addition, a program reserved for recording is recorded by securing a new recording area each time without performing overwrite recording of a program recorded in the recording area.
[0012]
In the digital recording / reproducing apparatus according to the present invention, the recording medium holds a recording date of a recorded program, and the CPU secures a new recording area each time to record a program reserved for recording. In the above, when a new recording area cannot be secured, the program reserved for recording is overwritten on the recording area where the program with the old recording date is recorded.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
(Embodiment 1)
Hereinafter, a digital recording / reproducing apparatus according to Embodiment 1 of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a digital recording / reproducing apparatus according to Embodiment 1 of the present invention.
[0014]
In FIG. 1, an antenna 100 receives a radio wave of a television signal. The tuner 101 selects a radio wave of a channel designated by the user from the radio wave received by the antenna 100, demodulates the radio wave into an analog television signal, and supplies the analog television signal to the A / D converter 102. The A / D converter 102 converts an analog signal into a digital signal, and provides a video signal to the MPEG2 video encoder 103 and an audio signal to the audio encoder 104. The MPEG2 video encoder 103 compresses and encodes the video signal and supplies the video signal to the multiplexer 105. The audio encoder 104 compresses and encodes the audio signal and supplies the encoded audio signal to the multiplexer 105. The multiplexer 105 multiplexes the given compressed and encoded streams of the video signal and the audio signal, and converts the multiplexed stream into an MPEG2 system stream.
[0015]
The hard disk control unit 110 includes a writing unit that writes data to the hard disk 111 and a reading unit that reads data. The hard disk 111 is a randomly accessible recording medium. The demultiplexer 112 separates the MPEG2 stream read from the hard disk 111 into a video signal stream and an audio signal stream, and outputs the video signal stream to the MPEG2 video decoder 113 and the audio signal stream to the audio decoder 114. give. The MPEG2 video decoder 113 decodes the stream of the video signal and supplies it to the OSD controller 115. The audio decoder 114 decodes the stream of the audio signal and supplies the stream to the D / A converter 116. The OSD controller 115 combines the OSD screen and the video provided by the MPEG2 video decoder 113 and provides the resultant to the D / A converter 116. The D / A converter 116 converts the video signal and the audio signal into analog signals and outputs the analog signals to the outside.
[0016]
The CPU 106 functions as a playback state determination unit (not shown) for determining whether or not the recorded program stored on the hard disk 111 has already been reproduced, and controls the entire apparatus. The memory 107 is used as a work area of the CPU 106. The real-time clock module 109 measures the current time. The user I / F 108 gives, for example, an input from a remote controller and an input from operation keys to the CPU 106.
[0017]
FIG. 2 is a diagram showing scheduled recording management information relating to scheduled recording of the digital recording / reproducing apparatus according to Embodiment 1 of the present invention. Such reserved recording management information is created and updated by the hard disk control unit 110, and is recorded on the hard disk 111, which is a recording medium that can be accessed randomly.
In FIG. 2, the scheduled recording management information data 201 includes scheduled recording setting information 202 and recorded program information 203.
[0018]
The timer recording setting information 202 includes timer recording setting data 204, which is information necessary for recording, and the timer recording setting data 204 includes a recording date, a recording start time, and a recording end as shown in the figure. Time, day of the week, recording channel, recording bit rate, repetitive recording mode, and registered program information address. The repetitive recording mode is information indicating whether or not a program in the same time zone is automatically overwritten in the same area every week and recorded repeatedly. In the case of repeated recording, a flag of “1” is set. A flag of "0" is attached when performing normal recording in which a new recording area is secured and a program reserved for recording is recorded without performing repetitive recording.
[0019]
In the recorded program information 203, recorded program information data 205, which is information on a program that has already been recorded, is recorded. As shown in the figure, the recorded program information data 205 includes the title of the recorded program. , A recording date, a recording position start address, a recording capacity, a recording bit rate, a reproduction state flag indicating whether or not the recorded program has been reproduced, and a link address. The playback state flag indicating whether or not the recorded program has been reproduced is cleared (value 0) by the reading unit of the hard disk control unit 110 when the recorded program information data 205 is created or updated. When the hard disk control unit 110 receives an instruction to reproduce the recorded program via the user I / F 108, the reproduction state flag is set (value 1).
[0020]
Next, the operation of the digital recording / reproducing apparatus according to the first embodiment of the present invention will be described.
FIG. 3 is a flowchart for explaining the operation of programmed recording of the digital recording / reproducing apparatus according to Embodiment 1 of the present invention.
[0021]
First, the CPU 106 reads the current date and time from the real-time clock module 109 (step S1), and sets the recording start time among the scheduled recording setting data set in the scheduled recording setting information area 202 stored in the hard disk 111. It is checked whether there is a reservation that matches the current time (step S2).
[0022]
If there is a matching reservation, the CPU 106 checks whether the repetitive recording mode of the reservation recording setting data 204 shown in FIG. 2 is set to repetitive recording (step S3). Then, when the repetitive recording mode of the timer recording setting data 204 shown in FIG. 2 is set to the repetitive recording, the address of the recorded program information of the timer recording setting data 204 is accessed via the hard disk control unit 110 ( Step S4). Next, the CPU 106 checks whether or not the program recorded in the recording area has been reproduced based on the reproduction information flag of the accessed recorded program information data 205 (see FIG. 2) (step 5).
[0023]
If the program already recorded in the recording area has been reproduced, the program reserved for recording is overwritten on the recording area by using the writing unit of the hard disk control unit 110 (step S6), and the corresponding recorded program information 205 is recorded. Is updated to the information of the newly recorded program (step S7). On the other hand, if the already recorded program is not in the reproduced state, a new recording area is secured in the hard disk 111 (step S8).
[0024]
If a new recording area can be secured, new recorded program information data 205 (see FIG. 2) is created, and the address indicating the storage location of the newly created recorded program information data 205 is shown in FIG. It is set as the address of the recorded program information of the reserved recording setting data 204 shown (step S9). Then, the program reserved for recording is recorded in the secured recording area by using the writing unit of the hard disk control unit 110 (step S10). In this case, after the program recorded in the newly secured recording area is played back by the reading section of the hard disk control section 110, the recording area is opened to reduce the storage capacity of the hard disk 111. An effect that can be effectively used is obtained.
[0025]
If a new recording area cannot be secured in step S8, the recording area having the oldest recording date is selected from among the recorded program information 203 (see FIG. 2) stored in the hard disk 111. Using the writing unit of the hard disk control unit 110, the program reserved for recording is overwritten and recorded (step S11), and the content of the corresponding recorded program information 205 is updated to the information of the newly recorded program (step S11). S12).
[0026]
If the repetitive recording mode is not the repetitive recording in step S3, a new recording area is reserved as normal reserved recording (step S14), and the reserved program is written in the reserved area using the writing unit of the hard disk control unit 110. Is recorded (step S15), and recorded program information data is created (step S16).
[0027]
Next, the operation of the above-described digital recording / reproducing apparatus will be described with a specific example.
FIG. 4 is a diagram showing an example of a programmed recording setting in the digital recording / reproducing apparatus according to the first embodiment of the present invention. Such reservation recording setting is performed by the user via the user I / F 108. As shown in the figure, the scheduled recording setting is that the first scheduled recording setting is to repeatedly record a program of 12 channels from 21:00 to 22:00 on Friday. Is to repeatedly record a program of channel 10 from 17:00 to 17:30 on Saturday, and the third scheduled recording setting is from 19:00 to 21:00 on Tuesday, January 29. That is, a program of six channels is recorded. FIGS. 5A, 5B, and 5C show the contents of the timer recording setting data 204 when the timer recording is set as shown in FIG. 4, and FIGS. 6A and 6B. 8 is a diagram showing the contents of recorded program information data 205 which is information of a program already recorded on the hard disk 111. FIG. FIG. 7 is a diagram showing a registration position of data stored in the hard disk, and FIG. 7A is a diagram showing a state in the hard disk before program recording in this specific example. b) is a diagram showing a state in the hard disk after recording the program in this specific example.
[0028]
Then, for example, assuming that the time of the first scheduled recording setting shown in FIG. 4 has come, the CPU 106 accesses the first scheduled recording setting stored in the hard disk 111, and sets the repeated recording mode to the repeated recording mode. It is checked whether or not the flag “1” is set.
[0029]
As shown in FIG. 5, since the flag of “1” indicating the repetitive recording is set in the repetitive recording mode, the first programmed recording setting indicates the recorded program set in the first programmed recording setting. The information address “addr1” is accessed to acquire the recorded program information 1 stored in the addr1 of the hard disk 111 (see FIG. 7).
[0030]
Next, the CPU 106 checks whether or not a flag of “1” indicating that the recorded program has been reproduced is set in the reproduction state of the acquired recorded program information 1.
In the recorded program information 1, as shown in FIG. 6, since a flag of “0” indicating a non-reproduction is set in the reproduction state, a new area is newly stored in the free space in the hard disk 111 as shown in FIG. 6A, a new recorded program information data 1a is created as shown in FIG. 6B, and the link address in FIG. 6A is rewritten from NULL to addr5. Then, the program indicated by the first reserved recording setting is recorded in the newly secured recording area 1a using the writing unit of the hard disk control unit 110.
[0031]
As described above, according to the digital recording / reproducing apparatus according to the first embodiment of the present invention, it is determined whether or not a program already recorded in the recording area has been reproduced when repeatedly performing scheduled recording. In the case of playback, by securing a separate recording area and recording the reserved program, even if the viewer forgets to watch the recorded program, a new program is overwritten on the recorded program. Can be reduced.
[0032]
(Embodiment 2)
Hereinafter, a digital recording / reproducing apparatus according to a second embodiment of the present invention will be described with reference to the drawings. The digital recording / reproducing apparatus according to the second embodiment of the present invention provides two recording areas in advance for programs to be repeatedly recorded, and among the two recording areas, a recording area in which a reproduced recorded program is recorded. Is to record a program reserved for recording.
[0033]
FIG. 1 is a block diagram showing a configuration of a digital recording / reproducing apparatus according to Embodiment 2 of the present invention. Since the components shown in FIG. 1 are the same as those of the digital recording / reproducing apparatus according to the first embodiment, the same reference numerals are given and the description is omitted here.
[0034]
FIG. 8 is a diagram showing a state in the hard disk of the digital recording / reproducing apparatus according to the second embodiment of the present invention. The reserved recording settings 1 to 3 shown in FIG. 8 correspond to the reserved recording settings shown in FIG. This shows a state in the hard disk 111 in a certain case.
[0035]
As shown in FIG. 8, in the hard disk 111, recording areas 1 and 2 for recording a reserved program and a spare recording area for reserved recording settings 1 and 2 for instructing repetitive recording, respectively. Are reserved in advance, and recorded program information 1, 1a, 2, 2a corresponding to each recording area is provided.
[0036]
Next, the operation of the digital recording / reproducing apparatus according to the second embodiment of the present invention will be described.
FIG. 9 is a flowchart for explaining the operation of programmed recording in the digital recording / reproducing apparatus according to Embodiment 2 of the present invention.
[0037]
First, the CPU 106 reads the current date and time from the real-time clock module 109 (step S20), and sets the recording start time among the scheduled recording setting data set in the scheduled recording setting information area 202 stored in the hard disk 111. It is checked whether there is a reservation that matches the current time (step S21).
[0038]
If there is a matching reservation, the CPU 106 checks whether the repetitive recording mode of the reservation recording setting data 204 shown in FIG. 2 is set to repetitive recording (step S22). Then, when the repetitive recording mode of the timer recording setting data 204 shown in FIG. 2 is set to the repetitive recording, the address of the recorded program information of the timer recording setting data 204 is accessed via the hard disk control unit 110 ( Step S23). Note that the addresses of the recorded program information shown in FIG. 8 and the addresses of two pieces of recorded program information respectively corresponding to the spare recording area are stored in the address of the recorded program information of the reservation recording setting data. The addresses of the two recorded program information will be accessed. Next, the CPU 106 determines whether the program recorded in the recording area or the spare recording area has been reproduced based on the reproduction information flags of the two accessed recorded program information data 205 (see FIG. 2). Check (step 24).
[0039]
If the program recorded in either the recording area or the spare recording area has been reproduced, the program reserved for recording by using the writing unit of the hard disk control unit 110 is written to the reproduced recording area. Overwrite recording is performed (step S25), and the content of the corresponding recorded program information 205 is updated to the information of the newly recorded program (step S26). If the programs recorded in the recording area and the spare recording area have already been reproduced, the program recorded in the recording area is overwritten with the program reserved for recording. I do. On the other hand, when the program recorded in any of the recording areas is not in the reproduced state, the recording area or the spare recording area is used for the recording area where the recording date and time of the recorded program information data 205 is older. Using the writing unit of the hard disk control unit 110, the program reserved for recording is overwritten and recorded (step S27), and the content of the corresponding recorded program information 205 is updated to the information of the newly recorded program (step S28). .
[0040]
If the repetitive recording mode is not the repetitive recording in step S22, a new recording area is reserved as normal reserved recording (step S29), and the reserved program is written in the reserved area using the writing unit of the hard disk control unit 110. Recording is performed (step S30), and recorded program information data is created (step S31).
[0041]
As described above, according to the digital recording / reproducing apparatus according to the second embodiment of the present invention, when the setting for performing the repetitive scheduled recording is made, two areas for recording the program are provided in advance. If a program recorded in one recording area is not played back, the program to be recorded is recorded in another recording area, so that even if the viewer forgets to watch the recorded program, the recorded program can be recorded. Overwriting of a new program on top can be reduced.
[0042]
Also, by providing two recording areas in advance and recording a program for which repeated recording reservation has been made in any one of the two recording areas, the recording capacity in the hard disk required for repeated recording is provided. Can be kept constant.
[0043]
In the digital recording / reproducing apparatus according to the second embodiment of the present invention, a case has been described in which two recording areas are provided in advance for recording a program for which a scheduled recording is set repeatedly. If more recording areas are provided for recording programs for which scheduled recording has been set for repeated recording, it is possible to further reduce overwriting of new programs on recorded programs. Can be.
[0044]
(Embodiment 3)
Hereinafter, a digital recording / reproducing apparatus according to Embodiment 3 of the present invention will be described with reference to the drawings. The digital recording / reproducing apparatus according to the third embodiment of the present invention is used as a recording area for a program when performing repetitive recording, separately from the recording areas respectively corresponding to the reservation recording setting for repetitive recording and common to the reservation recording setting for repetitive recording. The common recording area is provided in advance, and when a recorded program recorded in the recording area is not reproduced, a program reserved for recording is recorded in the common recording area.
[0045]
FIG. 1 is a block diagram showing a configuration of a digital recording / reproducing apparatus according to Embodiment 3 of the present invention. The components shown in FIG. 1 are the same as those of the digital recording / reproducing apparatus according to the first embodiment described above, and thus are denoted by the same reference numerals, and description thereof will not be repeated.
[0046]
FIG. 10 is a diagram showing a state in the hard disk of the digital recording / reproducing apparatus according to the third embodiment of the present invention. Scheduled recording settings 1 to 3 shown in FIG. This shows a state in the hard disk 111 in a certain case.
[0047]
As shown in FIG. 10, in the hard disk 111, a recording area 1 is reserved for a reserved recording setting 1 instructing repetitive recording, and a recording area 2 is reserved for a reserved recording setting 2 instructing repetitive recording. At the same time, a common recording area is secured as a common recording area for repeated scheduled recording, and recorded program information 1 and 2 corresponding to each recording area and recorded program information of the common recording area are provided.
[0048]
Next, the operation of the digital recording / reproducing apparatus according to Embodiment 3 of the present invention will be described.
FIG. 11 is a flowchart for explaining the operation of programmed recording of the digital recording / reproducing apparatus according to Embodiment 3 of the present invention.
[0049]
First, the CPU 106 reads the current date and time from the real-time clock module 109 (step S40), and sets the recording start time among the scheduled recording setting data set in the scheduled recording setting information area 202 stored in the hard disk 111. It is checked whether there is a reservation that matches the current time (step S41).
[0050]
If there is a matching reservation, the CPU 106 checks whether the repetitive recording mode of the reservation recording setting data 204 shown in FIG. 2 is set to repetitive recording (step S42). Then, when the repetitive recording mode of the timer recording setting data 204 shown in FIG. 2 is set to the repetitive recording, the address of the recorded program information of the timer recording setting data 204 is accessed via the hard disk control unit 110. (Step S43). Next, the CPU 106 checks whether or not the program recorded in the recording area has been reproduced based on the reproduction information flag of the accessed recorded program information data 205 (see FIG. 2) (step 44).
[0051]
If the program already recorded in the recording area has already been reproduced, the recording area is overwritten with the program reserved for recording by using the writing unit of the hard disk control unit 110 (step S45). The contents of the program information 205 are updated to the information of the newly recorded program (step S46).
[0052]
On the other hand, if the program that has already been recorded is not in the reproduced state, the CPU 106 accesses the recorded program information in the common recording area stored in the hard disk 111 via the hard disk control unit 110 (step S47). ), It is checked whether or not the program recorded in the common recording area has been reproduced based on the reproduction information flag of the recorded program information in the common recording area (step 48).
[0053]
If the program recorded in the common recording area has been reproduced, the recording unit of the hard disk control unit 110 is used to record the program in the common recording area based on the size of the common recording area and the recording time and recording bit rate of the program reserved for recording. The recording bit rate is changed so that the reserved program can be accommodated, and the program reserved for recording is overwritten and recorded (step S49), and the contents of the recorded program information in the corresponding common recording area are replaced with the newly recorded program. (Step S50). On the other hand, when the program recorded in the common recording area is not in the already-played state, the hard disk control unit is provided for the recording area in the recording area or the common recording area where the recording date and time of the recorded program information data is older. The program reserved for recording is overwritten using the writing unit 110 (step S51), and the content of the corresponding recorded program information is updated to the information of the newly recorded program (step S52).
[0054]
If the repetitive recording mode is not the repetitive recording in step S42, a new recording area is reserved as normal reserved recording (step S53), and the reserved program is written in the reserved area using the writing unit of the hard disk control unit 110. Recording is performed (step S54), and recorded program information data is created (step S55).
[0055]
As described above, according to the digital recording / reproducing apparatus according to the third embodiment of the present invention, when the setting for repeatedly performing scheduled recording is made, separately from the recording area for recording the scheduled program, the repeated recording setting is performed. By providing a common recording area common to the program reservations made, if the program recorded in the recording area has not been reproduced, the program to be recorded can be recorded in the common recording area, and the viewer can record. Even if the user forgets to watch a recorded program, it is possible to reduce the possibility that a new program is overwritten on the recorded program.
[0056]
In addition, when performing repetitive scheduled recording, a common recording area common to program reservations for which repetitive recording is set is provided in advance, and if a program recorded in the recording area has not been played back, By recording a program for which recording reservation has been made, it is possible to keep the recording capacity in the hard disk required for repeated recording to be constant.
[0057]
In the digital recording / reproducing apparatus according to the third embodiment of the present invention, description has been given of a case where one common recording area is provided in advance for recording a program that has been repeatedly set for scheduled recording. May be any number, and when more common recording areas are provided, it is possible to further reduce the possibility that a new program is overwritten on a recorded program.
[0058]
(Embodiment 4)
Hereinafter, a digital recording / reproducing apparatus according to Embodiment 4 of the present invention will be described with reference to the drawings. The digital recording / reproducing apparatus according to the fourth embodiment of the present invention temporarily reserves a new recording area and records a program reserved for recording without temporarily overwriting a program recorded in a recording area. It has a function.
[0059]
FIG. 1 is a block diagram showing a configuration of a digital recording / reproducing apparatus according to Embodiment 4 of the present invention. Since the components shown in FIG. 1 are the same as those of the digital recording / reproducing apparatus according to the first embodiment, the same reference numerals are given and the description is omitted here.
[0060]
FIG. 12 is a diagram showing an example of a programmed recording setting in the digital recording / playback apparatus according to the fourth embodiment of the present invention.
As shown in FIG. 12, the scheduled recording setting of the digital recording / reproducing apparatus according to Embodiment 4 of the present invention is performed by setting a new recording area every time without performing overwrite recording during the scheduled recording setting for performing repeated recording. An overwrite-recording release setting for instructing recording of a program reserved for recording is provided. If the user knows in advance that he will be absent for a long period of time, such as when traveling, he or she can set the overwrite recording release setting to repeatedly overwrite the previously recorded program on the previously recorded program when making repeated recording reservations. It is possible to prevent a previously recorded program from being overwritten and erased without recording.
[0061]
Next, the operation of the digital recording / reproducing apparatus according to Embodiment 4 of the present invention will be described. The operation of the digital recording / reproducing apparatus described below with reference to FIG. 13 is an operation performed when the repetitive recording mode of the scheduled recording setting is set to the repetitive recording, and the repetitive recording mode is set to the repetitive recording. The operation in the case where there is no such operation is the same as that in steps S14 to S16 shown in FIG. 3, and a description thereof will not be repeated.
[0062]
FIG. 13 is a flowchart for explaining the operation of repeated recording in the digital recording / reproducing apparatus according to Embodiment 4 of the present invention.
If the repetitive recording mode of the timer recording setting is set to the repetitive recording, the CPU 106 checks whether or not the overwrite recording release setting is set in the timer recording setting (step S61).
[0063]
If the overwrite recording release setting is set in the reservation recording setting, a new recording area is secured in the hard disk 111. (Step S62)
If a new recording area has been secured, the reserved program is recorded in the secured recording area using the writing unit of the hard disk control unit 110 (step S63), and recorded program information data is created (step S64). .
[0064]
On the other hand, if a new recording area cannot be secured in the hard disk 111, a recording area having the oldest recording date and time is searched for from the recorded program information recorded on the hard disk, and The program reserved for recording is overwritten and recorded using the writing unit of the control unit 110 (step S65). If the program reserved for recording does not fit in the recording area having the oldest recording date and time, recording may be performed at a lower recording bit rate so as to fit in the recording area, or another old recording may be performed. The data may be overwritten on the recording area having the date and time. After recording the program reserved for recording, the recorded program information is created (step S66).
[0065]
When the overwrite recording release setting is not set in the reserved recording setting, the processing from step S4 to step S12 is performed. The processing from step S4 to step S12 has been described with reference to FIG. Therefore, the same operations are denoted by the same reference numerals, and description thereof is omitted here.
[0066]
As described above, in the repetitive recording mode, by allowing the user to temporarily cancel the overwrite recording, the user can overwrite the already recorded program when it is known in advance that the user will be out of the office for a long period of time, such as when traveling. The overwrite recording can be canceled so as not to be performed, and even if the recording is repeated, all the recorded programs can be easily saved.
[0067]
【The invention's effect】
As described above, according to the digital recording / reproducing apparatus of the present invention, a recording area for repeatedly recording a program broadcast in a regularly determined time zone is previously secured in a randomly accessible recording medium. A digital recording / reproducing apparatus having a reservation recording function for repeatedly recording a program reserved for recording in the reserved recording area; and input means for inputting an external command, and a reproduction command input to the input means. A reproducing unit that reproduces a program recorded in the recording area based on the reproduction information and records reproduction information indicating that the program has been reproduced on the recording medium; and a recording unit that records the reproduction information in the recording area based on the reproduction information. Playback state determination means for determining whether the reproduced program has already been reproduced, writing means for writing data to the recording medium, and control of the entire apparatus PU, and the CPU, after recording the program reserved for recording in the previously secured recording area, when further recording the program, based on the determination result of the playback state determination means, When it is determined that the program recorded in the recording area has been reproduced, the program reserved for recording is overwritten on the previously reserved recording area, and the program recorded in the recording area is not reproduced. When it is determined that a new recording area is reserved and the program is recorded in the new recording area, even if the viewer forgets to watch the recorded program, the new program is overwritten on the recorded program. The effect that can reduce what is done is acquired.
[0068]
Further, according to the digital recording / reproducing apparatus of the present invention, after the program recorded in the newly secured recording area is reproduced, the reading means releases the recording area, thereby enabling the recording medium to be used. The effect which can be used for is obtained.
[0069]
Further, according to the digital recording / reproducing apparatus of the present invention, when the recording medium holds the recording date of the recorded program and the program recorded in the recording area is determined to be unreproduced, a new When the storage area cannot be secured, the CPU overwrites the program reserved for recording on the recording area in which the program with the oldest recording date is recorded, so that even if the recording area cannot be secured. The effect is obtained that the program reserved for recording can be recorded in the recording area.
[0070]
Further, according to the digital recording / reproducing apparatus of the present invention, a recording area for repeatedly recording a program broadcast in a regularly determined time zone is previously secured in a randomly accessible recording medium. In a digital recording / reproducing apparatus having a reservation recording function of repeatedly recording a program reserved for recording in a reserved recording area, an input means for inputting a command from outside, and a reproduction command input to the input means, Reading means for reproducing a program recorded in the recording area and recording reproduction information indicating that the program has been reproduced on the recording medium; and a program recorded in the recording area based on the reproduction information. A reproduction state determination unit for determining whether or not the data has already been reproduced, a writing unit for writing data to the recording medium, and a CPU for controlling the entire apparatus. Wherein the CPU secures one or more spare recording areas having the same recording time as the previously secured recording area in the recording medium in advance, separately from the previously secured recording area, After recording the program reserved for recording in the reserved recording area, if the program is to be recorded again and again, the CPU records the program recorded in the recording area based on the judgment result of the reproduction state judging means. When it is determined that the program has been reproduced, the program reserved for recording is overwritten in the previously secured recording area, and the program is recorded. When it is determined that the program recorded in the recording area is not reproduced, the one or more programs are recorded. By recording the program in any of the spare recording areas, even if the viewer forgets to watch the recorded program, it is possible to reduce the possibility that a new program is overwritten on the recorded program. Results can be obtained.
[0071]
According to the digital recording / reproducing apparatus of the present invention, the recording medium holds a recording date of a recorded program, and a program is recorded and recorded in all of the recording area and the one or more spare recording areas. If all of the recorded programs have not been played back, the CPU secures a recording area by overwriting a program reserved for recording on a recording area where a program with an old recording date is recorded. Even if it is not possible, an effect is obtained that a program reserved for recording can be recorded in the recording area.
[0072]
Further, according to the digital recording / reproducing apparatus of the present invention, a recording area for repeatedly recording a program broadcast in a regularly determined time zone is previously secured in a randomly accessible recording medium. In a digital recording / reproducing apparatus having a reservation recording function of repeatedly recording a program reserved for recording in a reserved recording area, an input means for inputting a command from outside, and a reproduction command input to the input means, Reading means for reproducing a program recorded in the recording area and recording reproduction information indicating that the program has been reproduced on the recording medium; and a program recorded in the recording area based on the reproduction information. A reproduction state determination unit for determining whether or not the data has already been reproduced, a writing unit for writing data to the recording medium, and a CPU for controlling the entire apparatus. And wherein the CPU secures one or more common recording areas having a fixed storage capacity in common for repeated recording reservations in the recording medium in advance, separately from the previously secured recording areas. If the program reserved for recording in the recording area is recorded and then the program is recorded again and again, the CPU reproduces the program recorded in the recording area based on the judgment result of the reproduction state judging means. When it is determined that the recording has been completed, the program reserved for recording is overwritten on the previously reserved recording area, and the program recorded on the recording area is not reproduced. By changing the bit rate of the program so that the program reserved for recording fits in any of the recording areas, the program is recorded even if the viewer forgets to watch the recorded program. Effect capable of reducing the Tana program is overwritten is obtained.
[0073]
According to the digital recording / reproducing apparatus of the present invention, the recording medium holds a recording date of a recorded program, and a program is recorded in all of the recording area and the one or more common recording areas, and the recorded program is recorded. When all of the programs have not been played back, the CPU can secure the recording area by overwriting the program reserved for recording on the recording area where the program with the oldest recording date is recorded. Even if there is no such program, an effect is obtained that a program reserved for recording can be recorded in the recording area.
[0074]
Further, according to the digital recording / reproducing apparatus of the present invention, when repeatedly recording a program broadcast in a regularly determined time zone, the CPU temporarily stops the program based on a command input to the input means. Instead of performing overwrite recording of a program recorded in the recording area, a new recording area is reserved each time to record a program reserved for recording, so that the program is already recorded until the user permits overwrite recording. An effect is obtained that a program reserved for recording can be recorded without being overwritten and deleted.
[0075]
Further, according to the digital recording / reproducing apparatus of the present invention, the recording medium holds a recording date of a recorded program, and the CPU secures a new recording area each time to record a program reserved for recording. In the case, when a new recording area cannot be secured, when a program reserved for recording is overwritten on a recording area where a program with an old recording date is recorded, a recording area cannot be secured. However, the effect that the program reserved for recording can be recorded in the recording area can be obtained.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a digital recording / reproducing apparatus according to the present invention.
FIG. 2 is a diagram showing reserved recording management information data of the digital recording / reproducing apparatus according to the first embodiment of the present invention.
FIG. 3 is a flowchart for explaining a scheduled recording operation of the digital recording / reproducing apparatus according to the first embodiment of the present invention.
FIG. 4 is a diagram showing an example of a programmed recording setting of the digital recording / reproducing apparatus according to the first embodiment of the present invention.
FIG. 5A is a diagram showing the specific contents of the first scheduled recording setting data. (B) It is a figure showing the concrete contents of the 2nd timer recording setting data. FIG. 14C is a diagram showing the specific contents of the third programmed recording setting data.
FIG. 6A is a diagram showing specific contents of recorded program information data corresponding to a first scheduled recording setting. FIG. 11B is a diagram showing specific contents of recorded program information data corresponding to the second scheduled recording setting.
FIG. 7A is a diagram showing a state in a hard disk before recording a program in a specific example according to the first embodiment of the present invention; (B) A diagram showing a state in the hard disk after recording the program in a specific example according to the first embodiment of the present invention.
FIG. 8 is a diagram showing a state in a hard disk of a digital recording / reproducing device according to a second embodiment of the present invention.
FIG. 9 is a flowchart for explaining a scheduled recording operation of the digital recording / reproducing apparatus according to the second embodiment of the present invention.
FIG. 10 is a diagram showing a state in a hard disk of a digital recording / reproducing device according to a third embodiment of the present invention.
FIG. 11 is a flowchart for explaining a scheduled recording operation of the digital recording / reproducing apparatus according to the third embodiment of the present invention.
FIG. 12 is a diagram showing an example of a programmed recording setting of the digital recording / reproducing apparatus according to the fourth embodiment of the present invention.
FIG. 13 is a flowchart for describing an operation of repeated recording of the digital recording / reproducing apparatus according to the fourth embodiment of the present invention.
[Explanation of symbols]
100 antenna
101 Tuner
102 A / D converter
103 MPEG2 video encoder
104 audio encoder
105 multiplexer
106 CPU
107 memory
108 User I / F
109 Real-time clock module
110 Hard Disk Controller
111 Hard Disk
112 Demultiplexer
113 MPEG2 Video Decoder
114 Audio Decoder
115 OSD controller
116 D / A converter
201 Scheduled recording management information data
202 Scheduled recording setting information
203 Recorded program information
204 Scheduled recording setting data
205 Recorded program information data

Claims (9)

In a randomly accessible recording medium, a recording area for repetitively recording a program broadcast in a regularly determined time zone is reserved in advance, and a program reserved for recording is reserved for the reserved recording area. In a digital recording / reproducing apparatus having a scheduled recording function for repeatedly recording,
An input means for inputting an instruction from outside,
Based on a playback command input to the input unit, a playback unit that plays back a program recorded in the recording area and records playback information indicating that the program has been played back on the recording medium,
Playback state determination means for determining whether the program recorded in the recording area has already been reproduced, based on the reproduction information,
Writing means for writing data to the recording medium;
And a CPU that controls the entire apparatus.
When recording the program reserved for recording in the previously reserved recording area and then recording the program further repeatedly, the CPU records the program in the recording area based on the determination result of the reproduction state determination unit. When it is determined that the recorded program has been reproduced, the program reserved for recording is overwritten on the previously secured recording area and recorded. When it is determined that the program recorded in the recording area is not reproduced, a new Secure the recording area and record the program in the new recording area,
A digital recording / reproducing apparatus characterized by the above-mentioned. The digital recording / reproducing apparatus according to claim 1,
The read means, after the program recorded in the newly secured recording area is played, to release the recording area,
A digital recording / reproducing apparatus characterized by the above-mentioned. The digital recording / reproducing apparatus according to claim 1,
The recording medium holds a recording date of a recorded program,
When it is determined that the program recorded in the recording area has not been played back and a new storage area cannot be secured, the CPU sets the recording on the recording area where the program with the old recording date is recorded. Overwrite and record a reserved program,
A digital recording / reproducing apparatus characterized by the above-mentioned. In a randomly accessible recording medium, a recording area for repetitively recording a program broadcast in a regularly determined time zone is reserved in advance, and a program reserved for recording is reserved for the reserved recording area. In a digital recording / reproducing apparatus having a scheduled recording function for repeatedly recording,
An input means for inputting an instruction from outside,
Based on a playback command input to the input unit, a playback unit that plays back a program recorded in the recording area and records playback information indicating that the program has been played back on the recording medium,
Playback state determination means for determining whether the program recorded in the recording area has already been reproduced, based on the reproduction information,
Writing means for writing data to the recording medium;
And a CPU that controls the entire apparatus.
The CPU separately secures at least one spare recording area having the same recording time as the previously secured recording area in the recording medium, separately from the previously secured recording area,
After recording the program reserved for recording in the previously reserved recording area, if the program is to be recorded again and again, the CPU records the program in the recording area based on the judgment result of the reproduction state judging means. When it is determined that the program has been reproduced, the program reserved for recording is overwritten on the previously reserved recording area and the program is recorded. When it is determined that the program recorded in the recording area is not reproduced, Record the program in any of the above spare recording areas,
A digital recording / reproducing apparatus characterized by the above-mentioned. The digital recording / reproducing apparatus according to claim 4,
The recording medium holds a recording date of a recorded program,
When a program is recorded in all of the recording area and the one or more spare recording areas, and when all of the recorded programs have not been played back, the CPU sets a recording in which a program with an old recording date is recorded. Overwrite the program reserved for recording on the area to record,
A digital recording / reproducing apparatus characterized by the above-mentioned. In a randomly accessible recording medium, a recording area for repetitively recording a program broadcast in a regularly determined time zone is reserved in advance, and a program reserved for recording is reserved for the reserved recording area. In a digital recording / reproducing apparatus having a scheduled recording function for repeatedly recording,
An input means for inputting an instruction from outside,
Based on a playback command input to the input unit, a playback unit that plays back a program recorded in the recording area and records playback information indicating that the program has been played back on the recording medium,
Playback state determination means for determining whether the program recorded in the recording area has already been reproduced, based on the reproduction information,
Writing means for writing data to the recording medium;
And a CPU that controls the entire apparatus.
The CPU, in addition to the previously secured recording area, reserves one or more common recording areas having a common fixed storage capacity for repeated recording reservation in the recording medium in advance,
After recording the program reserved for recording in the previously reserved recording area, if the program is to be recorded again and again, the CPU is recorded in the recording area based on the determination result of the reproduction state determination means. When it is determined that the program has been reproduced, the program reserved for recording is overwritten on the previously reserved recording area and the program is recorded. When it is determined that the program recorded on the recording area is not reproduced, Recording the program at a changed bit rate so that the program reserved for recording fits in any of the above common recording areas;
A digital recording / reproducing apparatus characterized by the above-mentioned. The digital recording / reproducing apparatus according to claim 6,
The recording medium holds a recording date of a recorded program,
When a program is recorded in all of the recording area and the one or more common recording areas, and when all of the recorded programs are not played back, the CPU sets the recording area in which the program with the oldest recording date is recorded. Above, overwrite the program scheduled to be recorded and record,
A digital recording / reproducing apparatus characterized by the above-mentioned. The digital recording / reproducing apparatus according to any one of claims 1 to 7,
When repeatedly recording a program broadcast in a regularly determined time zone, the CPU temporarily overwrites a program recorded in a recording area based on a command input to the input means. Recording a program reserved for recording by securing a new recording area every time without performing
A digital recording / reproducing apparatus characterized by the above-mentioned. The digital recording / reproducing apparatus according to claim 8,
The recording medium holds a recording date of a recorded program,
In the case where the CPU reserves a new recording area each time and records a program reserved for recording, when a new recording area cannot be reserved, the program with the oldest recording date is recorded on a recording area where Overwrite the program reserved for recording and record,
A digital recording / reproducing apparatus characterized by the above-mentioned.

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