JP2023062414A - Receiving device, recording method, and program - Google Patents

Abstract

To provide a receiving device, a recording method, and a program to control a recording time.SOLUTION: A receiving device according to one embodiment includes a plurality of tuners, a control unit, and a recording processing unit, and the plurality of tuners receive program data, the control unit determines a stream area size which is the maximum recordable capacity in a storage unit for each of the program data, and the recording processing unit records the program data in the storage unit on the basis of the stream area size.SELECTED DRAWING: Figure 1

Description

Embodiments relate to a receiving device, a recording method, and a program.

The number of tuners installed in television receivers for digital broadcasting and the storage capacity of storage media such as hard disk drives are increasing. Recording such as all program recording is also possible.

Japanese Patent Application Laid-Open No. 2001-136476 JP 2010-226493 A JP 2017-147497 A

However, when recording programs received by a plurality of tuners, the amount of recording data and the recording time may differ for each program depending on the display quality of the program to be recorded.

An object of the present invention is to provide a receiving device, a recording method, and a program for controlling the recording time.

A receiving apparatus according to one embodiment includes a plurality of tuners, a control section, and a recording processing section. A stream area size, which is the maximum value, is determined, and the recording processing unit records the program data in the storage unit based on the stream area size.

FIG. 1 is a functional block diagram of a receiver according to an embodiment. FIG. 2 is a flowchart illustrating an example of processing when recording is set by the control unit of the receiving device according to the embodiment. FIG. 3 is a diagram showing an example of a setting screen of the receiving device according to the embodiment. FIG. 4 is a setting example of recording modes and coefficients in the receiving device according to the embodiment. FIG. 5 is a diagram showing an example of areas set for each channel in the receiving device according to the embodiment. FIG. 6 is a flowchart illustrating an example of processing of the control unit during recording by the receiving device according to the embodiment. FIG. 7 is a diagram showing an example of a setting screen of the receiving device according to the modification.

Embodiments will be described below with reference to the drawings.

FIG. 1 is a functional block diagram showing a configuration example of a receiving device according to an embodiment.

The receiving device 1 is a device that receives digital content and is viewed by a user. It may be a television receiver (also referred to as a television device, a television receiver, or a broadcast signal receiver) that acquires and views a program. The receiving device 1 may include a computer having a CPU, memory, and the like.

In addition, the receiving device 1 may have a recording/playback function, and by the recording/playback function, it is possible to record a broadcast program on a hard disk drive (sometimes referred to as HDD or hard disk) or watch the recorded broadcast program. can be output to Also, a recording/reproducing device (not shown) may be connected to the receiving device 1, and a broadcast program may be recorded in the recording/reproducing device (not shown) for viewing. The hard disk may be built in the receiving device 1, or may be externally connected to the receiving device 1 as an external device.

Also, the receiving device 1 may be a recorder capable of only recording without a viewable monitor or a Set Top Box (STB) capable of receiving broadcast signals, as long as it is capable of receiving digital content. Further, the receiving device 1 may be a mobile device such as a personal computer or a smart phone as a receiving device having a similar receiving function.

The receiving device 1 may be remotely controlled by the user using the attached remote control 10 . Further, the receiving device 1 may include voice recognition means (not shown) such as a smart speaker that enables remote control.

Also, the receiving device 1 in this embodiment may include a plurality of tuners, and may simultaneously record programs of a plurality of channels. For example, it is also possible to simultaneously record programs of channels corresponding to the number of specified tuners for a long period of time, and such a recording method is called all-program recording. This embodiment may be applied to a time shift machine (registered trademark) having a function of recording all programs.

In the case of recording all programs, the amount of time that can be recorded depends on the capacity of the hard disk that can store recorded data. For example, the maximum recordable capacity (called stream area size) is determined for each different channel, and when the hard disk usage reaches the stream area size for each channel, the oldest recorded data is deleted. Newly received program data may be written in the erased portion. Also, when the amount of hard disk usage reaches the size of the stream area, the oldest recorded data may be overwritten with newly received program data without erasing the oldest recorded data.

A remote controller 10 is a remote controller for controlling the receiving device 1 .

The details of the configuration of the receiving device 1 will be described below.

The tuner unit 11 receives a broadcast wave from an antenna (not shown) or a cable television (CATV) cable, etc., and obtains a broadcast signal (digital data) by processing such as demodulation according to the digital broadcast standard. The tuner section 11 may include a plurality of tuners, and the figure shows an example of including two tuners 11-1 and 11-2. The tuners 11-1 and 11-2 are capable of receiving different channels, respectively, and can simultaneously receive programs of as many channels as the number of tuners.

The basic processing unit 12 is a basic function for processing broadcast signals according to digital broadcasting standards, etc., and a demultiplexing processing function for extracting various digital data such as encoded data and control signals by separating broadcast signals. Also, it may have functions such as error correction code decoding processing, ACAS (registered trademark), B-CAS (registered trademark), etc., for decrypting encrypted data. The basic processing unit 12 decodes encoded data extracted from broadcast signals (video encoded data, audio encoded data, character encoded data, etc., sometimes collectively referred to as encoded program data). conversion processing, etc., and outputs program data (digital content data) such as video, audio, and text. The program data may also include data such as control data necessary for outputting the program data as content from a monitor or the like. The program data acquired by the basic processing unit 12 may be output to the monitor of the output unit 13 and presented to the user, or may be stored in the storage unit 16 or the like.

The output unit 13 has a control function for adjusting the output timing and display method of contents such as programs and data based on the program data output by the basic processing unit 12, etc., and a monitor and speakers for outputting the contents and data. It may be provided with a function.

The control unit 14 has a function of controlling each function of the receiving device 1, and all or part of the functions may operate on the CPU as software such as a program. In addition, the control unit 14 may operate with hardware or a combination thereof, in addition to software. Specifically, the control unit 14 receives various control signals from the remote controller 10 or the like via the interface unit 15 and controls each function of the receiving device 1 . For example, the control unit 14 may control power on/off (ON/OFF) of the receiving device 1, channel switching, and the like. In FIG. 1, data may also be exchanged with functional blocks that are not particularly connected to the control unit 14 . Further, the control unit 14 of the present embodiment has a control function related to program recording/playback.

The recording processing unit 141 may reproduce program data or encoded program data stored in the storage unit 16 according to a reproduction request from a user or the like. The recording processing unit 141 in this embodiment may have a function of decoding encoded program data output by a transcoder or the like, and outputs the decoded program data (video, text, audio, etc.) to the output unit 13 or the like. You can also The program data output by the recording processing unit 141 may be input to the output unit 13 directly or via the basic processing unit 12, and output as content from a monitor, speaker, or the like.

The setting storage unit 142 may be a memory or the like that stores and saves various settings for the receiving device 1 .

The recording management section 143 may manage data stored in the storage section 16 . For example, the recording management unit 143 may include a program data amount counter that counts the amount of data such as program data and encoded program data that have already been stored in the storage unit 16 . The program data amount counters may be installed corresponding to the respective tuners of the tuner section 11 and the tuner section 21, respectively. Also, the recording management unit 143 may determine the stream area size and the like in the storage unit 16 for each channel based on various settings for the receiving device 1 .

The HDD control unit 144 may have a function of a driver for controlling the storage unit 16, and creates a logical area (partition) based on the stream area size determined by the recording management unit 143, and controls the storage unit 16. It may be stored in the system management area.

The tuner control section 145 controls the tuner section 21 and the like based on various settings for the receiving device 1 .

The interface unit 15 indicates various interfaces provided in the receiving device 1, and may be various interfaces with external devices, the Internet, the remote control 10, and the like. Specifically, the interface unit 15 is a High Definition Multimedia Interface (HDMI (registered trademark)), USB (USB HUB, USB-SATA Bridge, etc. may also be included), infrared communication, Ethernet (TCP/IP, UDP /IP), etc., may include any interface such as various wireless standards. Further, the interface unit 15 may include an interface for communication between functions inside the receiving device 1. For example, the interface unit 15 includes an interface between the internal storage unit 161 built in the receiving device 1 and the control unit 14. A USB interface may also be used. The interface unit 15 may have an interface for receiving a control signal from a terminal such as a smartphone (not shown) instead of the remote controller 10 .

The storage unit 16 may be a memory such as an HDD, for example. In particular, the internal storage unit 161 indicates a storage unit built in the receiving device 1 and the external storage unit 162 indicates a storage unit as an external device connected to the receiving device 1 . The storage unit 16 may communicate with the control unit 14 via the USB of the interface unit 15, for example.

Similar to the tuner section 11, the tuner section 21 includes a plurality of tuners 21-1, 21-2, 21-N ₁ (N ₁ is a natural number) and 21-N ₂ (N ₂ is a natural number and N ₂ >N ₁ ). The function of each tuner may be the same as that of the tuner section 11 . However, in the tuner section 21, the tuner (eg tuner 21-1) specified by the control section 14 outputs the data of the specified channel to the specified output destination (eg transcoder 22-1). In particular, the tuner section 21 may be a tuner that is used when recording the entire program.

The transcoder unit 22 has a transcoder function of receiving a broadcast signal (digital data) from the tuner unit 21, processing the broadcast signal to acquire encoded program data, and changing the encoding method of the program data. It's okay. The transcoder unit 22 may have a demultiplexing function for extracting various digital data such as encoded program data and control signals by separating broadcast signals, and an error correction coding/decoding function. The transcoder unit 22 may also have functions such as encryption/decryption processing for decrypting encrypted data such as ACAS and B-CAS. The transcoder unit 22 once decodes the encoded program data of the acquired broadcast signal, and re-encodes the acquired decoded data (corresponding to program data) using the encoding method specified by the control unit 14 or the like. may be implemented. The transcoder is a common technique, and detailed description is omitted here. The transcoder unit 22 may have any configuration such as hardware for a plurality of transcoders (which may also include IC chips, FPGAs, etc.), software, or a combination thereof. In FIG. 22-1, 22-2). The transcoders 22-1 and 22-2 are examples having transcoder functions for N1 channels and N2-N1 channels, respectively, and may simultaneously transcode data from tuners for up to N2 channels at the same time. Encoding methods that can be handled by transcoders for N2 channels may be different for each of the N2 channels, or may be an arbitrary combination. Also, the combination of each tuner of the tuner section 21 and each transcoder of the transcoder section 22 connected thereto may be fixed on a one-to-one basis, or the combination may be changed depending on the situation.

Note that the above digital broadcasting standards may be, for example, the MPEG2 TS system used in 2K digital broadcasting or the MPEG Media Transport system (MMT system) used in 4K/8K digital broadcasting. is not particularly limited. Note that when there are a plurality of tuners, the tuners may support different standards.

An operation example of the receiving device according to the embodiment will be described below.

(embodiment)
In this embodiment, an example is shown in which the receiving apparatus 1 designates the stream area size for each channel and records all programs.

FIG. 2 is a flowchart illustrating an example of processing when recording is set by the control unit of the receiving device according to the embodiment.

When the user operates the remote controller 10 or the like and the remote controller 10 transmits a control signal for displaying the recording setting screen, the control unit 14 of the receiving device 1 receives the control signal and displays the recording setting screen on the monitor of the output unit 13. display (step S101).

FIG. 3 is a diagram showing an example of a setting screen of the receiving device according to the embodiment.

A setting screen 430 in FIG. 3A shows a setting screen for recording all programs displayed on the output unit 13 . A setting frame 431 indicates a setting frame for setting a channel for recording all programs, and may be set by the user using the remote controller 10 or the like. The number of channels that a user who executes recording of all programs uses the remote control 10 or the like depends on, for example, the number of tuners provided in the tuner section 11 and the tuner section 21 in FIG. The setting screen 430 is an example in which five dedicated tuners for all-program recording, one tuner capable of all-program recording and normal recording, and two tuners capable of normal recording are provided.

In the setting frame 432, it is possible to set the recording mode for the channel for which all programs are to be recorded. The recording mode indicates the image quality mode of the screen displaying the program data to be recorded, and selecting the recording mode determines the encoding method of the program data, that is, the transcoding method. Once the transcoding method for the program data of each channel is determined, the bit rate, that is, the amount of recorded data is determined.

A display frame 433 displays the viewable days for each channel for which all programs are to be recorded. The number of viewable days may be calculated, for example, from the bit rate of the recorded data and the stream area size allocated to the channel.

In the setting frame 434, it is possible to set the ratio of the data recorded by recording all the programs that can be stored in the built-in hard disk. In this case, for example, the capacity of the internal storage unit 161 (internal hard disk) and the capacity of the external storage unit 162 (external hard disk) capable of storing data recorded by recording all programs, that is, the internal storage unit 161 and the external storage unit 162 are allocated. Assuming that the logical capacities of the stream areas are A and B, respectively, the user may determine the ratio to be set in the setting frame 434 as A/(A+B) as the ratio of A to A+B. For example, by setting A=0, it is possible to record data recorded by recording all programs in the external storage unit 162 . Alternatively, the values of A and B may be set separately.

In the setting frame 435, it is possible to set the time for executing all program recording. A setting frame 436 indicates a button indicating “setting completed”. When the user presses the “setting completed” button from the remote controller 10 or the like, the setting is reflected. You can also When "setting completed" is pressed from the remote controller 10 or the like, the setting screen 430 may be closed and recording of all programs may be started with the setting contents of the setting screen 430. FIG.

A display frame 437 indicates encryption/decryption processing such as ACAS, B-CAS, and RMP applied to the broadcast signal. RMP is an abbreviation for Rights Management and Protection, and indicates a method of content protection.

A display frame 438 indicates the ID of the tuner.

In a setting example 4311, the channel "digital terrestrial broadcasting 001ch" and the broadcaster's name "A television broadcast" are set in the setting frame 431 for the tuner of ID1, and the recording mode is set to "DR mode fixed" in the setting frame 432. is set. In a setting example 4312, the channel "digital terrestrial broadcasting 006ch" and the name of the broadcaster "F TV broadcasting" are set in the setting frame 431 for the tuner of ID6, and the recording mode is set to "AVC medium image quality" in the setting frame 432. This is a set example. A setting example 4313 shows an example in which the setting frame 431 is not set for the ID7 tuner, and indicates that the ID7 tuner is for "normal recording".

FIG. 3B shows an example of a recording mode selection screen. For example, the portion of the recording mode "AVC medium image quality" in the setting example 4312 of FIG. It may be displayed. In the selection screen of FIG. 3B, the image quality for recording the content is displayed in the order of image quality from top to bottom. An example in which the user can select "AVC low image quality" or the like is shown. The DR mode indicates the mode with the highest image quality, and indicates encoded data of program data transmitted by the broadcast signal output from the basic processing unit 12 . AVC is an abbreviation for Advanced Video Coding, and is a method of encoding at a higher compression rate than DR mode.

Returning to FIG. 2, when the user operates the remote controller 10 or the like to input various setting contents to the recording setting screen as shown in FIG. step S102). When the user operates the remote controller 10 or the like to press the "setting complete" button, the control unit 14 receives the "setting complete" control signal (step S103). When the control unit 14 receives the control signal "setting completed", the recording management unit 143 allocates the storage unit 16 based on the various settings set in step S102 (step S104). In step S104, the recording management unit 143 determines the hard disk stream area size (writable data size ).
Channel stream area size = hard disk stream write area size x (channel factor/total value of all channel factors)

FIG. 4 shows an example of setting the recording mode and coefficients in the receiving device according to the embodiment, and is an example in which the recording modes and coefficients are set for six channels. Note that the numerical values shown in FIG. 4 are different from the setting contents shown in FIG. The recording modes are DR (digital terrestrial broadcasting), AVC (AF), AVC (AN), AVC (AS), AVC (AL), and AVC (AE) in descending order of image quality, that is, recording data amount (bit rate). In the setting example of FIG. 4, for example, when the stream area size, which is the area for full-screen recording allocated to the storage unit 16, is 900 GB, the stream area size of each channel is determined by the coefficient allocated to each channel. is calculated as follows. The coefficient in this embodiment is an example in which the value of the bit rate of the recording mode selected by the user is set as it is.
Stream region size for channel 001 = 900 GB x (17/(17 + 12 + 8 + 6 + 4 + 2)) = 312 GB
Stream region size for channel 002 = 900 GB x (12/(17 + 12 + 8 + 6 + 4 + 2)) = 220 GB
Stream region size for channel 003 = 900 GB x (8/(17 + 12 + 8 + 6 + 4 + 2)) = 146 GB
Stream region size for channel 004 = 900 GB x (6/(17 + 12 + 8 + 6 + 4 + 2)) = 110 GB
Stream region size for channel 005 = 900 GB x (4/(17 + 12 + 8 + 6 + 4 + 2)) = 73 GB
Stream region size for channel 006 = 900 GB x (2/(17 + 12 + 8 + 6 + 4 + 2)) = 36 GB

The HDD control unit 144 creates a logical area (partition) for each channel, for example, with the stream area size calculated in step S104 (step S105). The HDD control unit 144 may also store information such as logical areas on the storage unit 16 . Through the above procedure, a stream area for each channel is set in the storage unit 16 .

FIG. 5 is a diagram showing an example of areas set for each channel in the receiving device according to the embodiment, and shows stream areas set based on the stream area size determined for each channel by the above procedure. . Stream areas 1602 to 1607 are stream areas assigned to each channel, and are recorded in recording modes "DR", "AVC (AF)", "AVC (AN)", "AVC (AS)", and "AVC (AL)". ” and “AVC(AE)” indicate that the size of the stream area decreases in this order. In the storage unit 16, information such as a logical area is stored in a system management area 1601 as a system management configuration.

The recording management unit 143 allocates transcoders based on the recording mode in the setting frame 432 (step S106). In step S106, the recording management unit 143 selects the transcoder according to the set recording mode, DR (terrestrial digital), AVC (AF), AVC (AN), AVC (AS), AVC (AL), AVC (AE), etc. The encoding method after the change, that is, the bit rate, is determined, and a transcoder realizing the corresponding bit rate is assigned from the _N2 transcoders of the transcoder unit 22 . The assigned transcoder may be stored in the setting storage unit 142 in association with the data in FIG. 3(a).

FIG. 6 is a flowchart illustrating an example of processing of the control unit during recording by the receiving device according to the embodiment.

A stream area is set for each channel according to the flow in FIG. Good (step S151). When recording of all programs is started, the recording management unit 143 determines whether or not the program data amount counter needs to be cleared. If clearing is necessary (Yes in step S152), the program data amount counter is cleared. For example, after setting the counter to 0 (step S153), recording is started and counting of the recorded data amount (referred to as recorded data amount) is started (steps S154 and S155). In step S152, for example, if the program data amount counter is initialized or if the counter value of the program data amount counter reaches the stream area size of the storage unit 16 assigned to the corresponding channel, clearing is performed. You may decide that it is necessary. If the program data amount counter does not need to be cleared (No in step S152), recording is started and counting is started from the value of the program data amount counter up to the previous time (steps S154 and S155). The operation of recording data storage of the receiving device 1 in step S154 will be described below.

Each tuner of the tuner section 21 starts receiving the broadcast wave of the designated channel based on the setting contents (corresponding to FIG. 3A) saved in the setting storage section 142 or the like. Each transcoder of the transcoder section 22, which is the designated output destination of each tuner, processes the broadcast signal input from each tuner and acquires encoded program data. Each transcoder of the transcoder unit 22 decodes the encoded program data, acquires the program data, and encodes it by the encoding method installed in each transcoder, thereby changing the encoding method of the program data. . The transcoded encoded program data output from the transcoder unit 22 is stored (recorded) in the storage unit 16 .

When recording is continued and the count value of the program data amount counter reaches the allocated stream area size of the storage unit 16 (No in step S156, Yes in S157), the counter value of the program data amount counter is cleared. (Step S158), recording is continued. Thereafter, the process returns to step S155, and the data is written by overwriting the allocated area of the storage unit 16, for example. When recording of all programs is completed (Yes in step S156), the counter value of the program data amount counter at that time may be stored in a memory or the like and used when recording all programs next time (for example, in step S152). No). By performing the procedure from steps S152 to S160 for all program data amount counters, the amount of data to be recorded for each tuner or channel can be adjusted. By cyclically using the same stream area in the storage unit 16 as in step S159, the latest program data for each tuner or channel is always stored.

According to the procedure described above, the receiving apparatus 1 can control the amount of recording data for all channels to be recorded in recording all programs. Accordingly, by allocating the coefficients as shown in FIG. 4, for example, even when the display image quality of the recorded data for each channel is different, the recording time for all channels can be equalized. Although the bit rate value of the recording mode is used as the setting value for the coefficient in the present embodiment, the user may set an arbitrary value as the coefficient from the remote controller 10 or the like. For example, regardless of image quality, program data for a specific channel should be set to a value greater than the coefficient of other channels if you want to lengthen the recording time, or set a value greater than the coefficient of other channels if you want to shorten the recording time. may also be set to a large value.

(Modification)
In this modified example, a modified example of recording all programs in the receiving apparatus 1 is shown.

FIG. 7 is a diagram showing an example of a setting screen of the receiving device according to the modification.

A setting frame 451 is a check box for setting whether or not to apply the method of setting the stream area size of the storage unit 16 described in the embodiment to the target channel. Specifically, when the user checks the check box in the setting frame 451 from the remote control 10 or the like and presses the "setting complete" button, as shown in the embodiment, the channel to be recorded for all programs is stored. The stream area size of unit 16 can be set. On the other hand, if the user presses the “setting complete” button without checking the check box in the setting frame 451 , all programs are recorded without setting the stream area size of the storage unit 16 .

The setting frame 452 is a setting frame for the user to set the coefficients used when calculating the stream area size in the embodiment, using the remote controller 10 or the like. An example in which coefficients 8, 3, 2, 6, 4, and 2 are set for tuners 1 to 6 is shown. It shows a set example. After setting the recording mode and coefficients, pressing the "Setting Complete" button enables the stream area size in the storage unit 16 to be set for the target channel for recording all programs, as shown in the embodiment. As shown in FIG. 3, the embodiment is an example in which the number of viewable days for each channel is calculated as the same number of days. This is an example calculated for different days.

A display setting frame 453 can display the number of viewing days calculated based on the coefficient set in the setting frame 452. , 2.3, 1.5, and 0.8 (in units of days) are displayed. The frame labeled “Viewable days” in the display setting frame 453 may be a button, and when the user presses it, the number of viewable days calculated based on the coefficient set in the setting frame 452 is displayed. It's okay. Also, the display setting frame 453 may be able to set the "viewable days" for each channel. For example, a setting example 4512 shows an example in which “0.8” is set in the display setting frame 453 for the tuner 6 . In the display setting frame 453, the number of days that can be viewed is set. For example, if a check is put in the setting frame 451 and "setting completed" is pressed, the recording management unit 143 sets the number of days that can be viewed for the target channels for recording all programs. Alternatively, the stream area size may be set accordingly.

In the embodiment, the bit rate determined by the recording mode set for each channel is directly reflected in the coefficient. etc., and the recording mode for each channel is set, the control unit 14 acquires the coefficient using the correspondence table, calculates the number of days that can be viewed corresponding to the acquired coefficient, and sets the coefficient in the setting frame 452. , may be displayed in the viewable number of days in the display setting frame 453 . Alternatively, the control unit 14 may create data corresponding to the correspondence table using an arbitrary function that defines the relationship between the recording mode and the coefficient.

Further, in the embodiment, a method for determining the stream area size in the storage unit 16 for each channel for recording all programs has been described. It is also possible to determine the size. In this case, for example, different tuners can be used to record all programs of the same channel in different recording modes.

According to at least one embodiment described above, it is possible to provide a receiving device, a recording method, and a program for controlling recording time.

It should be noted that the names, definitions, types, etc. of the conditional parameters, options, values, evaluation indices, etc. displayed on the analysis screens shown in the drawings are shown as examples in the present embodiment. It is not limited to what is shown.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof. Furthermore, in each constituent element of the claims, even if the constituent element is divided and expressed, a plurality of constituent elements are expressed together, or a combination of these is expressed, it is within the scope of the present invention. Moreover, a plurality of embodiments may be combined, and examples configured by such combinations are also within the scope of the invention.

Also, in order to make the description clearer, the drawings may schematically show the width, thickness, shape, etc. of each part compared to the actual mode. In the block diagram, data and signals may be exchanged between unconnected blocks, or between connected blocks in directions not indicated by arrows. The processing shown in the flowchart may be realized by hardware (such as an IC chip), software (such as a program), or a combination of hardware and software. In addition, when the claims are expressed as control logic, when expressed as a program including instructions for executing a computer, and when expressed as a computer-readable recording medium in which the instructions are written, the apparatus of the present invention is applied. be. Also, the names and terms used are not limited, and other expressions are included in the present invention as long as they have substantially the same content and the same meaning.

Reference Signs List 1 receiver 10 remote control 11 tuner unit 12 basic processing unit 13 output unit 14 control unit 15 interface unit 16 storage unit 21 tuner unit 22 transcoder unit , 141... recording processing unit, 142... setting storage unit, 143... recording management unit, 144... HDD control unit, 145... tuner control unit, 161... internal storage unit, 162... external storage unit.

Claims (8)

a plurality of tuners for receiving digital broadcast program data;
a control unit that determines a stream area size, which is the maximum recordable capacity of a storage unit, for each of the program data;
and a recording processor that records the program data in the storage unit based on the stream area size. 2. The receiving apparatus according to claim 1, wherein said control unit determines a stream region size for said program data based on a setting coefficient set for each said program data. 3. The receiving apparatus according to claim 2, wherein the setting coefficient is set by a user. 3. The receiving apparatus according to claim 2, wherein the setting coefficient is calculated based on setting parameters set by a user. 5. The receiving apparatus according to claim 4, wherein said setting parameter is a bit rate value determined by the recording image quality of said program data. 6. The receiving apparatus according to any one of claims 1 to 5, wherein the program data are transmitted by broadcast signals of different channels. Determining a stream area size, which is the maximum recordable capacity in a storage unit, for each piece of digital broadcast program data received by a plurality of tuners,
A recording method for recording the program data in the storage unit based on the stream area size. a procedure of determining a stream area size, which is the maximum recordable capacity of a storage unit, for each piece of digital broadcast program data received by a plurality of tuners;
A program for causing a computer to execute a procedure for recording the program data in the storage unit based on the stream area size.

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