JP4621539B2 - Recording reservation method and recording apparatus - Google Patents

Description

  The present invention relates to an improvement in recording reservation from a plurality of recording sources (a plurality of programs). In particular, the present invention relates to a method and apparatus for reserving a plurality of broadcast programs from a plurality of TV tuners (or one or more internal TV tuners and another external tuner input) without waste.

  In recent years, digital video recorders based on the DVD video recording (DVD-VR) standard have been developed, and are rapidly spreading due to their high image quality, simplicity, and high accessibility. In particular, a DVD / HDD hybrid recorder equipped with a large-capacity hard disk drive (HDD) as a recording medium in addition to an optical disk based on the DVD standard has been well received due to its high functionality. In such a hybrid recorder, since a plurality of recording sources can be recorded simultaneously, a plurality of TV tuners are equipped so that a plurality of TV programs can be recorded (even if the broadcasting times overlap).

In recent years, in addition to conventional terrestrial analog broadcasting, satellite digital broadcasting and terrestrial digital broadcasting can be viewed, and the number of recording reservations on the recorder side is increasing. For this reason, the recording reservation setting has become more time-consuming for the user. As a means for reducing the trouble of recording reservation, there is one configured to retrieve electronic program information from a broadcasting station or an external server so that a user-desired program can be electronically searched (see Patent Document 1).
Japanese Patent Laid-Open No. 07-160732

  If a user-desired program can be searched electronically, it becomes easier to find a desired reserved program even if the number of broadcasts is increased. However, when a plurality of program reservations are made at a time, even if an electronic program search is possible, there remains a trouble for the user to check for overlapping recording reservation programs. Furthermore, it is sufficient if all of the duplicate reserved programs can be recorded. However, if only a part of the duplicate reserved programs can be recorded completely due to the status of the equipment being used, which program is prioritized and set. It takes time to do.

  One of the problems of the present invention is to make it possible to make the best recording reservation without waste even if there is an overlap in the recording reservation program.

  A recording reservation method according to an embodiment of the present invention includes a plurality of recording sources (various broadcast stations from various broadcasting stations) from one or more TV tuners (302 to 304) and / or one or more external inputs (301, 305). The present invention can be applied to a recording apparatus (FIG. 1) for making a recording reservation for a program and / or an AV signal analog line input or digital input from an external AV device broadcasted in a time zone. In this method, the transmission time zone of the program or recording source (TV program, AV content distributed etc.) to be reserved for recording and the supply source (TV tuner, line input, Internet) of the program or recording source to be reserved for recording 3) (ST16 in FIG. 3) and automatically register recording reservations for a plurality of programs or recording sources so that the time zone and the supply source do not overlap (ST18 to ST34 in FIG. 3). I have to.

  Even if there are overlaps in the scheduled recording program, the best scheduled recording can be made without waste.

  An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram for explaining an example of an apparatus (video equipment capable of recording reservation: specifically, a DVD / HDD hybrid recorder with a built-in multi-tuner) according to an embodiment of the present invention. This apparatus includes a macro processing unit (MPU) unit 100, a key input unit 101, a remote control receiving unit 102b that receives user operation information from the remote control 102a, a display unit 103, and the like.

  The selection unit 300 includes an audio video input unit 301a / 301b, an analog signal from the analog terrestrial tuner 302, an analog signal from the terrestrial digital tuner 303, an analog signal from the BS digital tuner 304, and an external tuner (set top box). : STB) The analog signal from 305 can be input (the terrestrial tuner 302 may be equipped with a plurality of the same ones). The STB 305 is connected to a satellite antenna (not shown), decodes the received digital broadcast data, generates an AV signal (analog and digital), and outputs the AV signal (signal transmission based on IEEE 1394 for the digital stream) Available). The selection unit 300 can select an input stream and supply the selected stream to the main encoder 401 and / or the sub encoder 402. The main encoder 401 and the sub-encoder 402 convert an input signal into a predetermined format (DVD standard or a format similar thereto; for example, a DVD-VR standard or a next-generation HD_DVD-VR standard format), and an output thereof is a data processing unit. 11 is supplied.

  The encoders 401 and 402 include an A / D converter, a video encoding unit, an input switching selector to the video encoding unit, an audio encoding unit, a sub-picture encoding unit, a formatting unit, a buffer memory, and the like. The apparatus of FIG. 1 has a main encoder unit 401 and a sub encoder unit 402 (which may have the same configuration as the main encoder unit), obtains two encoded outputs at the same time, and outputs these encoded outputs to an information recording medium (optical disc 14 and / or Alternatively, it can be recorded on the hard disk HDD 15).

  MPEG-TS packet data received by the STB unit (satellite and / or terrestrial digital tuner) 305 is packet-grouped by the formatter unit in the encoder unit 401 and / or 402 and stored in the buffer memory. Then, the data is recorded on the disk (14 and / or 15) when a certain amount of data is accumulated in the buffer memory (at the time when 1 or an integral multiple of CDA is accumulated). In this operation, when TS packets are received, 85 packets (or an integer multiple of the packets) are grouped to create a packet group header.

  Further, analog signals input from the terrestrial tuner 303 and the line inputs 301a / 301b are digitally converted by an A / D unit (not shown). The digital signal is input to the encoder units 401 and 402. In the encoders 401 and 402, a video signal is sent to a video encoding unit (not shown), an audio signal is sent to an audio encoding unit (not shown), and character data such as a character broadcast is sent to a sub-picture encoding unit (not shown). Entered. The video signal is MPEG-encoded, the audio signal is AC-3 (R) or MPEG audio encoded (AAC encoded, etc.), and the character data is run-length encoded.

  In each of the encoder units 401 and 402, the encoded compressed data is divided into blocks of 2048 bytes and input to the formatter unit. In the formatter unit, each packet is blocked, further multiplexed, and sent to the data processing unit 11. The data processing unit 11 forms an ECC block to which error correction data is added for every 16 (or 32) data blocks of the recording data, and performs predetermined modulation. The modulated data is sent to the disk drive unit 13 via the data encryption / decryption unit 13a, and is sent to the hard disk drive unit 15 via the data encryption / decryption unit 15a.

  Here, for example, when the drive unit 13 is seeking or track jumping, when the drive unit 13 is busy, the primary storage unit 12 is used and the drive unit 13 is waited for. Under the control of the MPU unit 100, the data processing unit 11 stores data to be recorded in the disk drive unit 13 and the hard disk drive (HDD) unit 15 for each recording data unit (for example, for each CDA unit which is a physical continuous recording unit). ) Can be sent in time division.

  Each encoder unit 401, 402 has a formatter unit that sends the previous recording data to the data processing unit 11 and creates segmentation information during recording and periodically sends it to the MPU unit 100 (such as GOP head interrupt). ). The segmentation information here includes the number of logical blocks LB of the video object unit VOBU, which is a unit for accessing the drive, the end address of the I picture from the beginning of the VOBU, the playback time of the VOBU, and the like.

  The system time counter (STC) unit 500 is configured to perform clock counting on a 27 MHz base, and generates a reference clock for blocks of each unit of the apparatus.

  Reference numeral 601 denotes a decoder unit. Data read from the optical disk 14 and / or the hard disk 15 at the time of reproduction is subjected to amplification and error correction processing by the data processing unit 11 and sent to the decoder unit 601. The decoder unit 601 includes a separation unit including a memory, a video decoding unit including a reduced image (thumbnail or the like) generation unit, a sub-picture (SP) decoding unit, an audio decoding unit, a TS packet transfer unit, a video processor (V- (PRO) section, audio D / A converter, and the like. An analog output (monaural, stereo, or AAC 5.1CH surround) from the D / A converter in the decoder unit 601 is amplified and output by an AV amplifier (not shown) or the like and input to the speaker unit 605. Here, the required number of speakers are appropriately driven.

  In order to display the content being recorded on the display unit 604 such as a television, the stream data to be recorded is simultaneously sent to the data processing unit 11 and simultaneously to the decoder unit 601 for reproduction (recording monitor). be able to. In this case, the MPU unit 100 performs settings for reproduction in the decoder unit 601, and thereafter, the decoder unit 601 automatically performs reproduction processing. The setting information of the stream data used at this time can be created by the STI setting unit in the MPU unit 100.

  The MPU unit 100 registers a timer for referring to time in a recording reservation or the like, and a recording reservation processing unit that executes a recording reservation process described with reference to FIGS. Memory).

  The MPU unit 100 is further configured to be connectable to the Internet via the network I / F 700. The MPU unit 100 can appropriately import electronic program information (EPG information) from the digital tuners 303 to 305 or an EPG site on the Internet. From the network I / F 700, AV content and the like distributed on the network can be taken in. From this EPG information (broadcast time information, broadcast channel information, title information, and other related information codes), the content of the content to be recorded can be specified.

In the apparatus configuration of FIG. 1, since both the optical disk drive 13 and the HDD 15 can be read / written at high speed, if the content to be recorded is not copy-restricted (copy free), the following processing is possible. ing;
(1) Recording data from the encoders 401 and 402 are temporarily buffered in the storage unit 12. During the high-speed dubbing of the data of the encoder 401 from the storage unit 12 to the disk 14, the subsequent recording data from the encoder 401 is buffered in the storage unit 12. During this buffering, the encoder 402 data previously buffered from the storage unit 12 is dubbed to the disk 14 at high speed. By alternately repeating the above processing, two contents (for example, broadcast contents from the terrestrial analog tuner 302 and contents from the line input 301a) can be simultaneously recorded on the disk 14 (double recording or W recording).

  (2) The recording data from the encoders 401 and 402 are temporarily buffered in the storage unit 12. During the high speed dubbing of the data of the encoder 401 from the storage unit 12 to the HDD 15, the subsequent recording data from the encoder 401 is buffered in the storage unit 12. During this buffering, the encoder 402 data previously buffered from the storage unit 12 is dubbed to the HDD 15 at high speed. By repeating the above processing alternately, two contents can be recorded on the HDD 15 simultaneously (double recording).

  (3) In addition to the processing of (1) above, the data from the encoder 401 or 402 can also be recorded in parallel on the HDD 15 during simultaneous recording on the disk 14. Alternatively, when the disk 14 is used up during recording, the subsequent recording can be continued on the HDD 15 (relay recording or relief recording).

  (4) In addition to the processing of (2) above, the data from the encoder 401 or 402 can also be recorded in parallel on the disk 14 during simultaneous recording on the HDD 15. Alternatively, if the HDD 15 is used up during recording, the subsequent recording can be continued on the disk 14 (relief recording).

  (5) While the data from the encoder 401 (or 402) is being recorded on the disk 14, the data from the encoder 402 (or 401) is recorded on the HDD 15. Thereby, two contents can be recorded simultaneously on the disk 14 and the HDD 15 (double recording).

  The above processes (1) to (5) can be executed without any problem when any content to be recorded is not copy-restricted (copy free). On the other hand, when the content to be recorded is a copy never and cannot be moved, the processes (1) to (5) cannot be executed. However, when the content to be recorded is copy-once, some of the above processes (1) to (5) can be executed with restrictions in consideration of the conditions for whether or not to move.

  In the following description, simultaneous recording of two inputs 1 and 2 is assumed. However, inputs 1 and 2 may be any two of the sources selected by the selection unit 300 in FIG. Here, when the source selected as the input 1 and / or the input 2 is content that is not copy-managed by the CGMS (Copy Generation Management System) method, it is treated as copy-free. On the other hand, when an analog source whose copy is prohibited by the Macrovision (R) method or the like is input, the content of the source is treated as a copy never.

  If it is known that the source to be recorded at the time of recording reservation is a copy never, that source is excluded from the target of recording reservation. When a recording reservation is made without recognizing that it is a copy never at the time of recording reservation (for example, when the signal from the AV input 301a is reserved for recording and the signal is a copy never), the recording reservation is executed. Not. Alternatively, if a reservation having a lower priority than that of the reserved copy never source is registered in the same time period, the reservation having a lower priority may be executed.

  FIG. 2 is a diagram for explaining an example of the remote controller 102a used in the apparatus of FIG. The remote controller 102a is provided with various keys, and the keys related to the implementation of the present invention will be mainly described. The keys arranged at the upper center of the remote controller are cursor keys 11a, 11b, 11c, and 11d for moving the cursor left and right and up and down, and an enter key 11e is provided at the center of the cursor key. 11f is a menu key, and 11g is a program guide key. An terrestrial analog broadcast electronic program guide (such as ADAMS of CH10), a terrestrial digital electronic program guide, and / or a BS digital electronic program guide is displayed on the display unit 604 when the program guide key 11g is pressed. In addition, when the quick menu key 11h is pressed, a menu display for selecting various user operations pops up on the display unit 604.

  FIG. 3 is a flowchart for explaining the “recording reservation automatic registration” process according to the embodiment of the present invention. This process can be executed for the video equipment (DVD / HDD hybrid recorder with built-in multi-tuner) shown in FIG. 1 using, for example, the remote controller 102a shown in FIG.

  First, when the user presses the program guide key 11g of the remote controller 102a and selects the all channel display mode, for example, the program guide (all channels) that can be recorded by the recorder is displayed on the display unit (external monitor or TV) 604 in FIG. (Not shown) is displayed. In this program guide, for example, symbols (CH1, BS103, L-1, etc.) indicating broadcasting stations or line inputs are displayed in the left column, and in the rows from the left side to the right side, The names or symbols of broadcast programs scheduled to be broadcasted are listed. There is a cursor (not shown) on the program guide, and this cursor can be moved left and right and up and down by the cursor keys 11a, 11b, 11c and 11d of the remote controller 102a.

  When the determination key 11e is pressed after the cursor is moved on the program desired by the user, the program at the position where the cursor is present at that time is selected as a recording reservation candidate. For example, when the determination key 11e is pressed when the cursor is at the program position of 9:00 to 10:00 PM on the terrestrial analog CH1, the terrestrial tuner is broadcast on CH1 at 9:00 to 10:00 PM on the program airing day. The program received at 302 becomes a candidate for recording reservation (here, the candidate is a candidate for overlapping with another recording reservation, etc., as a result, the recording reservation is not effective) Because there is a possibility.)

  Programs that are candidates for recording reservations are stored in a registration memory in the recording reservation processing unit provided in the MPU 100 of FIG. 1 as part of the recording reservation automatic registration candidate program group (q). Candidate programs stored in the registration memory are given user-specified priorities (for example, from priority 1 with the highest priority to priority 9 with the lowest priority). When the priority is not designated by the user, the latest selection candidate is set to priority 1 for programs with overlapping recording reservations, and the priority is decremented one by one as the selection becomes old. Can be configured to stop. Here, several methods for specifying the priority are conceivable. That is, in addition to a method of increasing the priority of the latest recording reservation (assuming that this method is the default), the user can determine the priority for each genre in advance. For example, an animation program is given the highest priority, a movie program is given a second priority, and a drama program is given a third priority.

  When the above selection process of “candidate programs to be reserved for recording” has not been completed yet (NO in step ST12), the recording reservation automatic registration candidate program group (q) in the registration memory is ordered in descending order of priority. One piece of program information (p) is acquired from the registration memory (step ST16). The acquired program information (p) and the broadcasting station (broadcast channel) are the same, and the broadcast time zone of the acquired program information (p) (from the scheduled start time to the end time) is included. Whether a program already exists in the recording reservation automatic registration candidate program group (q) in the registration memory is checked regardless of the tuner used (step ST18). If it already exists (step ST18 YES), the program information (p) is not registered as a regular recording reservation, and the program information (p) of the next priority is automatically registered for recording reservation in the registration memory. It is acquired from the candidate program group (q) (step ST16), and a similar check is performed (step ST18).

  In the above checking process, the acquired program information (p) is the same as the broadcast station, and the program information (p) that includes the broadcast time zone of the acquired program information (p) is the recording reservation automatic registration candidate program in the registration memory. If it does not exist in the group (q) (NO in step ST18), the program information (p) is broadcast using the first tuner (for example, the terrestrial tuner 302 in FIG. 1) and the existing recording reservation and the broadcast time zone. It is checked whether or not they overlap (step ST20). Here, this “existing recording reservation” information is stored in a registration memory (an address different from the recording reservation automatic registration candidate program group (q)) in the recording reservation processing section provided in the MPU 100 of FIG. Can do. If they do not overlap (NO in step ST20), the program information (p) is registered (stored in the registration memory) as a regular recording reservation (step ST28). Then, the next priority program information (p) is acquired from the recording reservation automatic registration candidate program group (q) in the registration memory (step ST16), and the same check is performed (step ST18).

  In the above check process, when the broadcast of the program information (p) overlaps with the existing recording reservation using the first tuner and the broadcast time zone (Yes in step ST20), the broadcast of the program information (p) is the first. It is checked whether recording is possible only with the tuner (step ST22). When the broadcast of the program information (p) can be recorded by the second tuner (such as the terrestrial digital tuner 303 or BS digital tuner 304 in FIG. 1 or another terrestrial analog tuner not shown) (step ST22). No), it is checked whether the broadcast of the program information (p) overlaps the existing recording reservation using the second tuner and the broadcast time zone (step ST24). If they do not overlap (NO in step ST24), the program information (p) is registered as a regular recording reservation (stored in the registration memory) (step ST28). Then, the next priority program information (p) is acquired from the recording reservation automatic registration candidate program group (q) in the registration memory (step ST16), and the same check is performed (step ST18).

  In the above checking process, when the broadcast of the program information (p) overlaps with the existing recording reservation using the second tuner and the broadcast time zone (Yes in step ST24), the program information (p) is a regular recording reservation. The program information (p) of the next priority is acquired from the recording reservation automatic registration candidate program group (q) in the registration memory (step ST16), and the same check is performed (step ST16). ST18).

  In the above checking process, when the broadcast of the program information (p) can only be recorded by the first tuner (Yes in step ST22), the existing recording reservation group in which the program information (p) and the broadcast time zone overlap. It is checked whether or not (q) contains a video that can only be recorded by the first tuner (step ST30). If there is something that can only be recorded by the first tuner (Yes in step ST30), the program information (p) is not registered as a regular recording reservation, and the program information (p) of the next priority is registered as the registration. It is acquired from the recording reservation automatic registration candidate program group (q) in the memory (step ST16), and a similar check is performed (step ST18).

  In the above check process, when there is no record that can be recorded only by the first tuner in the existing recording reservation group (q) whose program information (p) and the broadcast time zone overlap (No in step ST30), the existing recording reservation In the group (q), it is checked whether or not there is an overlap between the existing recording reservation and the broadcast time zone in the second tuner (step ST32). When there is no duplicate (No in step ST32), all the existing recording reservation groups (q) are changed to recording reservations by the second tuner (step ST34), and the program information (p) is registered as regular recording reservations. (Stored in the registration memory) (step ST28). Then, the next priority program information (p) is acquired from the recording reservation automatic registration candidate program group (q) in the registration memory (step ST16), and the same check is performed (step ST18).

  When there is an existing recording reservation group (q) in which the existing recording reservation and the broadcast time zone overlap in the second tuner (Yes in step ST32), the program information (p) is registered as a regular recording reservation. The program information (p) of the next priority is acquired from the recording reservation automatic registration candidate program group (q) in the registration memory (step ST16), and a similar check is performed (step ST18).

  When the above processing is completed for all priority program information (p) (Yes in step ST12), the recording reservation automatic registration processing in FIG. When the processing is completed, a dialog (not shown) that informs the user to that effect is displayed on-screen on the display unit 604 in FIG. At this time, when the program guide key 11g of the remote controller 102a in FIG. 2 is pressed, the recorder in FIG. 1 can shift to another processing mode (for example, a reproduction mode).

  FIG. 4 is a flowchart for explaining a “recording reservation rearrangement” process according to another embodiment of the present invention. First, when the user presses the quick menu key 11h of the remote controller 102a and selects a reservation change (reservation cancellation) item, the recording unit is currently reserved for recording on the display unit (external monitor or TV) 604 in FIG. The contents (not shown) are displayed.

  When this “reservation change (reservation cancellation)” processing has not yet been completed (NO in step ST42), one recording reservation (p) is selected from the displayed recording reservation contents (step ST46). This selection can be performed by the user moving a cursor (not shown) with the arrow keys 11a to 11d of the remote controller 102a and pressing the enter key 11e when the cursor is at a desired recording reservation location. When the enter key 11e is pressed, a display (not shown) that allows the reservation content of the selected recording reservation (p) to be changed is displayed on the display unit 604.

  While viewing the display, the user can change the broadcast channel, reservation date, reservation start time, reservation end time, tuner used, recording medium (HDD / DVD, etc.) (reservation cancellation) for the recording reservation (p). (Step ST48). When the enter key 11e is pressed after this change operation, the MPU 100 acquires information such as the reservation start time and reservation end time after the change of the recording reservation (p) (step ST50).

  When the recording reservation (p) after the change overlaps with other recording reservations (YES in step ST52), the recording reservation (p) after the change and the recording reservation (one or more) of the overlapping partner are between Priorities are compared. When the priority of the recording reservation after the change (p) is higher than the priority of all the overlapping partners (Yes in step ST54), the recording reservation after the change (p) is re-registered as a regular recording reservation (in the MPU 100) Stored in the registration memory (step ST58). If not (NO in step ST54), the subsequent recording reservation (p) is cancelled.

  If the priority of all of the duplication partners is the highest and the priority of the changed recording reservation (p) is the same as in the case of YES in step ST54, the changed recording reservation ( p) may be re-registered as a regular recording reservation.

  When the above operations (steps ST46 to ST58) are executed for all the recording reservations (p) to be changed (Yes in step ST42), the recording reservation rearrangement process in FIG. 4 ends.

  The program for executing the processes in FIGS. 3 to 4 described above can be stored in the firmware ROM in the MPU unit 100 in FIG. The work memory in the MPU unit 100 can be used as a work area used when executing this program. Furthermore, the ROM / RAM in the MPU unit 100 can be used as appropriate when executing the program. For example, EPG data obtained from a digital tuner or an EPG site on the Internet can be stored in the RAM in the MPU unit 100. Further, information about each broadcasting station (a logo or an icon indicating the station) known in advance can be stored in the ROM in the MPU unit 100.

<Effects of the embodiment>
(1) Even if there is a recording reservation with overlapping time zones and recording sources (such as tuners used for recording reservation), the reserved recording will not be lost.

  (2) There is no waste of recording the same program several times with a plurality of tuners.

  (3) Automatic relocation of recording reservations enables as many reservation recordings as possible.

  (4) The recording reservation can be executed with the priority intended by the user.

  (5) Due to the rearrangement of the recording reservation, the user's priority recording will not be lost.

  From the above, it is possible to achieve both a basic function and added value as a recording device, in which reservations are automatically registered without taking time and effort on the user's side, while reservations made by the user are surely executed.

  Note that the present invention is not limited to the above-described embodiment, and can be variously modified in the present or future implementation stage based on the technology available at that time without departing from the gist thereof. It is. For example, in the embodiment of FIG. 1, a configuration capable of simultaneously recording two programs with a two-encoder / 2-drive configuration is illustrated, but it can be developed into an N-encoder / M-drive configuration based on the same concept ( For example, a 4-encoder / 3-drive configuration or two-encoder / 2-drive configuration devices are connected to a network and integrated into a substantially 4-encoder / 4-drive configuration. In addition, the present invention can be implemented in a personal computer having a DVD / HDD drive and a TV tuner by installing software using the present invention. Further, the medium for recording the reserved recording target is not limited to the optical disk or HDD, and other storage media (semiconductor memory or the like) that can be used at the time of recording execution may be used (combined) as appropriate. A storage device of an external device connected via a personal computer interface such as IEEE1394 or USB can also be used.

  In addition, the embodiments may be appropriately combined as much as possible, and in that case, the combined effect can be obtained. Further, the above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some configuration requirements are deleted from all the configuration requirements shown in the embodiment, a configuration from which these configuration requirements are deleted can be extracted as an invention.

The figure explaining the structure of the digital video recorder (DVD / HDD hybrid recorder equipped with multiple tuners) concerning one embodiment of this invention. The figure explaining an example of the remote controller used with the apparatus of FIG. The flowchart figure explaining the "recording reservation automatic registration" process concerning one embodiment of this invention. The flowchart figure explaining the "recording reservation rearrangement" process which concerns on other embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 13 ... Optical disk drive part; 14 ... Optical disk (DVD-RAM, DVD ± RW, DVD ± R etc.); 15 ... Hard disk drive part (HDD); 100 ... Control MPU part.

Claims (7)

A recording reservation method using a recording device that makes a recording reservation for a plurality of programs from the first and second tuners,
Select the transmission time zone and broadcast channel of the program to be reserved for recording,
The program to be reserved for recording can be recorded using the first tuner and cannot be recorded using the second tuner, and the program to be reserved for recording overlaps the transmission time zone. However, if an existing recording reservation group is reserved using the first tuner, but the existing recording reservation group can be recorded using the second tuner, the existing recording reservation group is recorded. Change the tuner used in the second tuner,
A recording reservation method for registering a recording reservation for the selected program to be reserved for recording by using the first tuner . 2. The recording reservation method according to claim 1, wherein priority is assigned to the selected program to be reserved for recording, and recording is made in order of priority . A priority is assigned to the selected program to be reserved for recording, and as a result of changing the reservation of the recording reservation program with the higher priority, the transmission time zone of the recording reservation program with the higher priority with the reservation changed. 2. The recording reservation method according to claim 1, wherein a recording reservation program with a high priority that has been changed in reservation is registered when a transmission time zone of the recording reservation program with a relatively low priority overlaps . A recording method for recording content input from a first tuner and a second tuner,
When the first content that can be recorded using the first tuner and the first content that cannot be recorded using the second tuner is reserved for recording, the second recording that has already been reserved for recording using the first tuner. When the content can be scheduled to be recorded using the second tuner, the tuner used for recording the second content is changed to the second tuner,
A recording reservation method for recording recording the first content using the first tuner . First and second tuners;
A selection means for selecting a transmission time zone and a broadcast channel of a program to be reserved for recording;
The program to be reserved for recording can be recorded using the first tuner, but cannot be recorded using the second tuner, and the transmission time zone overlaps with the program to be reserved for recording. However, if the recording reservation group is reserved using the first tuner, but the existing recording reservation group can be recorded even using the second tuner, the recording reservation group is used in the existing recording reservation group. Changing means for changing the tuner to the second tuner;
A recording apparatus comprising registration means for registering a recording reservation by using the first tuner for the selected program to be reserved for recording . First and second tuners;
Recording means for recording content input from the first and second tuners;
A recording reservation processing unit for recording reservations,
When the first content that can be recorded using the first tuner and the first content that cannot be recorded using the second tuner is reserved for recording, the second recording that has already been reserved for recording using the first tuner. When the content can be scheduled to be recorded using the second tuner, the tuner used for recording the second content is changed to the second tuner, and the first content is changed using the first tuner. A recording reservation processing unit configured to make a recording reservation ; Playback means for playing back the content recorded by the recording means;
  The recording apparatus according to claim 6, further comprising: a display unit that displays content reproduced by the reproduction unit.

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