KR20040016269A - A/V program recording/reproducing apparatus and controlling method thereof - Google Patents

Abstract

PURPOSE: An apparatus for recording and playing video, and a method for controlling the same are provided to exclude viewing restriction set programs from a program guide information list, thereby preventing children and juveniles from accessing harmful programs. CONSTITUTION: A viewing restriction setup signal is inputted(S10). A password input window is displayed on a menu guide list picture(S20). A main control unit judges the conformity between a set password and an inputted password(S21). The main control unit displays a viewing restriction setup picture(S30). Viewing restriction setup information is recorded in a user database according to an inputted signal(S31). A program list request signal is inputted(S40). A program guide information list is displayed except viewing restriction set program information(S41).

Description

Image recording / playback apparatus and its control method {A / V program recording / reproducing apparatus and controlling method

The present invention relates to an image recording / reproducing apparatus and a control method thereof. Specifically, a program for which a user has set a restriction on use is not displayed on a program list indicating guide information of a recorded program. A video recording / reproducing apparatus capable of preventing access and a control method thereof.

Background Art A video recording / reproducing apparatus capable of reproducing a broadcast signal recorded on a recording medium and reproducing the broadcast signal has expanded its function according to the development of digitalization and compression technology of the broadcast signal.

Recently, a video recording / reproducing apparatus has been adopted a hard disk driver which is a large capacity storage device.

Such image recording / reproducing apparatuses are being developed to support the use of various image sources such as satellite broadcasting signals, cable broadcasting, and network broadcasting through the Internet.

However, as the number of available image sources of the video recording / reproducing apparatus and the use function thereof are expanded, the complexity of selecting a channel desired by a user and using a program recorded in the storage apparatus increases.

In addition, since there are adult or violent programs among various image sources, and these harmful programs are stored in the hard disk drive, it is necessary to prevent children or teenagers from accessing the harmful programs.

Accordingly, the conventional video recording / reproducing apparatus has set a parental level for each program, and uses a parental level limiting function for viewing when a set password is input to the parental level.

However, in the case of the parental control function, children or teenagers who operate the video recording / reproducing apparatus can recognize that a file for which parental control is set exists. In the case of a password setting, a number that can be easily memorized is often input, so when a child or a teen finds and inputs a password, there is a problem of watching a harmful program.

The present invention was devised to improve the above problems, and it is possible for a child or adolescent to have a harmful program so that a child or adolescent cannot recognize that a program whose parental level is set among programs recorded in the memory is recorded in the memory. An object of the present invention is to provide a video recording / reproducing apparatus and a method of controlling the same, which can reliably block access.

1 is a view showing a display system to which an image recording / reproducing apparatus according to the present invention is applied;

2 is a block diagram of the video recording / reproducing apparatus of FIG. 1;

3 is a plan view of the remote controller of FIG.

4 is a menu guide list screen displayed on a display device when a menu key of FIG. 3 is selected;

5 is a screen that is subsequently displayed when the digital recorder menu is selected from the menu guide list of FIG. 4;

6 is a screen displayed when the parental control setting menu of FIG. 5 is selected;

7 is a screen illustrating a password input window displayed when the lock setting menu of FIG. 6 is selected;

FIG. 8 is a lock setting screen displayed when the passwords of FIG. 7 match. FIG.

9 is a screen displayed when requesting a program list after setting the parental control as shown in FIG. 8;

FIG. 10 is a block diagram showing the structure of program information stored in the hard disk drive of FIG.

11 is a flowchart showing the operation procedure of the video recording / playback apparatus control method according to the present invention.

In order to achieve the above object, the present invention can record the video signal received from the video signal generating source to the storage device and reproduce the recorded video signal to the external display device, and limit the viewing to the recorded video signal program. An image recording / reproducing apparatus capable of setting, comprising: an interface unit provided on a main body to receive a user input signal from an external input apparatus capable of selecting a function supported by the image recording / reproducing apparatus; When a parental control setting signal is input to a program recorded in a storage device from an external input device, a program list request requesting whether to restrict viewing for each program according to the signal and listing guide information about the program recorded in the storage device is listed up. When the signal is input, the main recording unit for listing and displaying the guide information of the program except for the program set to the parental control among the programs recorded in the storage device; provides a video recording / reproducing apparatus comprising a.

When the parental control setting request signal is input from an external input device, the main control unit displays a parental control setting screen on which the guide information of a program recorded in the storage device is listed, including a program on which the parental control is set. Processing, but the guide information preferably includes information on whether to set the parental control.

And a password setting means for setting a password, wherein the main controller, when the parental control setting request signal is inputted, displays the parental control setting screen for setting the parental control for each program when a password corresponding to the set password is input. It is preferable to display on the external display device.

In addition, when the parental control setting signal is input to the programs listed on the parental control setting setting screen, the main controller changes the information on whether or not the parental control setting is set for each program according to the signal, and displays information on whether or not the parental control setting is set. It is preferable to store in the user information area of the program file.

According to another embodiment, the information on whether to set the parental control for the program may be configured as user information for each program and recorded in a user database stored in the storage device. Such a user database is used to manage programs such as program lists and / or parental control setting settings.

On the other hand, in order to achieve the above object, the present invention, the video signal received from the video signal generation source can be stored in the storage device and reproduced and stored in the video signal output to the external display device, and set the parental control to the program A control method of a video recording / reproducing apparatus, comprising: a) setting a parental control level for each program according to a signal when an external parental control setting signal is input to a program recorded in a storage device; And b) when a program list screen display request signal for listing guide information of a program recorded in the storage device is input, listing and displaying guide information about a program except for a program for which viewing is restricted among the programs; A control method of an image recording / reproducing apparatus is provided.

The control method of the image recording / reproducing apparatus includes a password setting means, and the step a) includes: displaying a password input window when it is determined that a parental control setting request signal is input; Determining whether the password input through the password input window coincides with the password set through the password setting means; Displaying a list of programs recorded in the storage device including the program for which the parental control is set, if it is determined to be matched in the step, and displaying whether or not the parental control setting is set for each program; Setting a viewing restriction for each program according to a signal input from the external input device; And recording viewing restriction setting information for each program set in the step.

Hereinafter, an image recording / reproducing apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing a display system to which an image recording / reproducing apparatus according to the present invention is applied.

Referring to the figure, the video recording / reproducing apparatus 100 is connected to a television 300 as a display apparatus by means of a transmission cable 350.

The video recording / reproducing apparatus 100 processes a signal received from the remote controller 200 which is an external input device and transmits display information to the television 300. Here, the external input device may be applied to other input devices such as a wired keyboard as well as the remote controller 200 for transmitting a wireless signal such as infrared rays.

The video recording / reproducing apparatus 100 is configured to receive at least one video signal provided from a plurality of video sources. Examples of image sources may include other media capable of transmitting signals, such as terrestrial television broadcasts, satellite broadcasts, cable leads, computer lines or modem lines. That is, video sources such as cable, satellite dish, local cable, digital broadcast source (DBS), general antenna, Internet, other computer sources, camcorders, disk players, set-top boxes, etc. The present invention described below is applied to a video recording / reproducing apparatus constructed to receive at least one of the following.

The video recording / reproducing apparatus 100 also includes a mass storage device for storing video signals and the like. As a mass storage device, a hard disk driver (HDD) can be used.

A block diagram according to an embodiment of such an image recording / reproducing apparatus is shown in FIG. Referring to FIG. 2, the video recording / reproducing apparatus 100 includes an input / output terminal unit 110, a tuner 121, a switching unit 123, an input / output control unit 125, an MPEG encoder 141, and a hard disk. A driver (HDD) 151, a disc player 155, and a main controller 160 are provided.

The input / output terminal unit 110 is configured to receive signals generated from various video signal sources and to output signals reproduced from the received or received hard disk driver 151 applied to the mass storage device.

The input / output terminal unit 110 includes a super video input terminal (SV IN) 111 and an output terminal (S-ViDEO) 112, an RF input terminal (RF IN) 113, and an output terminal (RF OUT) 114. ), A line video / audio input terminal (LINE V_IN, LINE A_IN) 115, an output terminal (LINE V_OUT, LINE A_OUT) 116, a digital audio signal output terminal (SPDIF; Serial Parallel Digital interface) (117) It is prepared.

Here, if only the input / output relationship is different and the same type of signal is described in more detail with respect to either the input terminal or the output terminal, the super video input terminal 111 is a digitally separated luminance signal Y. And a terminal for receiving color difference signals Cr and Cb, which are connected to a digital camcorder, a DVD player, a set top box, and the like.

The RF input terminal 113 is a terminal for receiving an over-the-air broadcast signal and is usually connected to an antenna.

The line video / audio input terminal 115 is a terminal for receiving an analog signal mixed with a luminance signal Y and a color signal. The line video / audio input terminal 115 is connected to a camcorder, a DVD player, a set-top box, etc., which supports the output of an analog video signal.

The digital audio output terminal 117 is a terminal for outputting the digital audio signal transmitted from the main controller 160 to the outside.

The tuner 121 adjusts a reception channel so that a broadcast signal of a channel requested by the input / output controller 125 controlled by the main controller 160 can be received through the RF input terminal 113.

The switching unit 123 is controlled by the input / output control unit 125 to control the input / output terminals connected to the switching unit 123 to be selectively connected to each other.

The video decoder 131 is controlled by the main controller 160 to decode and output a signal received through the super video input terminal 111 or the switching unit 123.

The audio A / D converter 133 converts an analog audio signal input through the switching unit 123 into a digital signal and outputs the digital signal to the MPEG encoder 141.

The MPEG encoder 141 is controlled by the main controller 160 to encode and record the audio signal output from the audio A / D converter 133 and the video signal output from the video decoder 131 using a predetermined compression format. The target data is stored in the hard disk drive 151 which is a mass storage device. Preferably, the MPEG encoder 141 encodes by MPEG-2 compression.

Reference numeral 143 denotes an SDRAM applied as a memory used by the MPEG encoder 141 during the encoding process.

The data manager 157 manages the reproduction and recording of data recorded in the hard disk drive 151 and / or the disc player 155. That is, the data manager 157 stores the data recorded in the disk player 155 to the hard disk driver 151 or the data recorded in the hard disk driver 151 to the disk player 155 and the MPEG encoder 141. The storage of the encoded data to the hard disk driver 151 is controlled by the main controller 160 to manage.

The disc player 155 is built in the video recording / reproducing apparatus. The disc player 155 may be a DVD player for reproducing data recorded on a recording medium such as a digital video disk (DVD) and / or a compact disk (CD).

The disc player 155 is connected to the main controller 160 so as to perform a recording / playback operation.

The light receiver 171 is applied as an interface and receives a user manipulation signal transmitted from the remote controller 200, which is an external input device, and outputs it to the main controller 160.

The main controller 160 processes user manipulation signals received through the light receiver 171 and controls each element.

The main controller 160 is a CPU that combines a central processing unit (CPU) 161 with an MPEG decoder 163 and a central processing unit (CPU) for decoding a compressed signal in an MPEG method. The MPEG decoder 163 may be separated into a separate chip and connected to the main controller 160.

In the flash memory 165, various programs and data related to the performance of the main controller 160 are recorded. The flash memory 165 is provided with a menu guide / processing unit 165a, which is a program for processing a menu guide list screen including a program list to be described later and a parental control setting setting screen. Reference numeral 167 denotes an SDRAM used by the main controller 161 as a temporary storage location.

The audio D / A converter 135 converts the digital audio signal output from the MPEG decoder 163 of the main controller 160 into an analog audio signal and outputs the analog audio signal to the switching unit 123.

The video encoder 137 encodes a video signal output from the video decoder 131 or the MPEG decoder 163 and outputs the encoded video signal to the switching unit 123.

The input / output controller 125 is controlled by the main controller 160 to control the tuner 121 and the switching unit 123.

In the image recording / reproducing apparatus, the main controller 160 loads an operating program mounted in the flash memory 165 at startup to support various functions supported by the light receiver 171 from the remote controller 200. To be treated.

10 is a diagram showing the structure of data recorded in the hard disk driver 151 of the video recording / reproducing apparatus.

Referring to FIG. 10, data to be recorded according to a user's command is encoded and recorded by the MPEG encoder 141 in the hard disk driver 151 which is a mass storage device of the video recording / reproducing apparatus 100. It is preferable to encode the data into an MPEG file (MPEG 152) by the MPEG-2 compression method.

The MPEG file 152 is composed of a time map (TMAP) 152a portion and image data, that is, a GOP (Group of Program 152b) portion. The time map 152a is a table that connects the Arrival Time Stamp (ATS) of the stored source packet to the location of the disc packet. The list of information such as program title, source location information, time, length, file name, parental control settings, etc. It has user data 152d such as

In order to construct a program menu guide list for managing the programs stored in the hard disk driver 151, the menu guide processor 165a uses the user data 152d.

The user data 152d includes position information of the still picture to indicate still picture information included when the program list is displayed. Also included are information about the title of the program, the file name, the file playback length, and the year / month / date / hour / minute / second when the program was recorded. In addition, the parental level setting information set according to the user's setting for each program is also included in the user data 152d.

The user data 152d is recorded in the user database 153 constructed as a separate database and stored in the hard disk driver 151 for use.

The video recording / reproducing apparatus configured as described above loads a menu guide list on the television 300 and controls a function provided by inputting a control signal using the remote controller 200. Hereinafter will be described in detail with respect to the process of controlling the parental control function implemented by the present invention using a menu guide list.

First, with reference to FIG. 3 in which the remote controller 200 which is an external input device of the image recording / reproducing apparatus of the present invention is described, the elements related to the menu guide screen operation will be described.

In the drawing, reference numeral 211 denotes a menu key used for instructing loading and closing of the menu guide list screen, and portions indicated by 213, 215, 217, and 219 are classified on the menu guide list screen to be described later. Left, right, up and down arrow keys used to indicate cursor movement. Reference numeral 221 denotes an enter key used to select a menu, and 223 denotes a return key used to return to the previous screen from the current screen.

The remaining keys are known keys and specific keys for operating the video recording / reproducing apparatus 100 and the television 300, and the functions of the keys can be easily understood through the letters displayed adjacent to the keys. Even if the detailed description of the function of the present invention is omitted, the detailed description is omitted.

Hereinafter, displaying the menu guide list on the television 300 and setting the parental level setting for the recorded program using the menu guide list will be described in more detail with reference to the menu guide list screen processing.

First, an example of a menu guide list screen will be described with reference to FIGS. 4 and 5. Referring to the drawing, the main menu is displayed on the menu guide list initial screen 400. If any one of the main menus displayed on the first block 431 is selected, the sub-menu dependent on the selected main menu corresponds to the second block 433 located on the right side of the first block 431 where the main menu is located. Display in the area.

The main menu includes a digital recorder menu 501 for managing data stored in the hard disk driver 151, a DVD player menu 502 for controlling a program stored in the DVD player 155, and the "Juke Box". Menu 503, " Photo Album " menu 504, " Set Up " menu 505, and the like.

When the digital recorder menu 501 is selected from the main menus for managing the programs stored in the hard disk driver 151, as shown in FIG. 5, the sub subordinate to the digital recorder menu 501 selected in the second block 433 is shown. The menus are displayed with the main menu arranged vertically in rows. The menu list guide screen is vertically divided into an upper region 410, an interruption region 430, and a lower region 450, and horizontally, a first block 411, 431, 451, and a right side are second to each stage. It is divided into blocks 413, 433, and 453.

In the lower area 450 of the screen, key operation usage information of the remote controller 200 corresponding to the use of the menu guide list screen 400 is displayed. As shown in the drawing, the lower region 450 is disposed on the lower first block 451 partitioned vertically parallel to the first blocks 411 and 431 of the upper region 410 and the stop region 430. "Instructions", which is a letter for notifying the use of a key operation, is displayed, and a key provided in the remote controller 200 and guide information corresponding to the function are displayed on the second block 453 on the right side of the first block 451. have.

The mark and guide information displayed in the lower region 450 are hereinafter referred to collectively as marks, and the lower region 450 includes a cursor movement guide mark 461, a return guide mark 463, and a selection. Guide mark 465 and exit guide mark 467 are displayed.

The cursor movement guide mark 461 is used to move the cursor with respect to the items arranged in the stop area 430. The direction keys 213, 215, 217, and 219 provided in the remote controller 200. The direction key mark corresponding to the " Move " and key operation usage information are displayed. Herein, the cursor is a direction of manipulation of the direction keys 213, 215, 217 and 219 with respect to the item where the cursor is located when the direction keys 213, 215, 217 and 219 of the remote controller 200 are operated. This is a general term for displaying the image so that the user can recognize that it has been moved to the next item placed at the position corresponding to the mark. It can be implemented by.

The return guide mark 463 is used to switch from the current screen to the previous screen and display the mark corresponding to the return key 223 provided in the remote controller 200 and key return information "Return". have.

The selection guide mark 465 is used to select an item on which the cursor is located, and a mark corresponding to the enter key 221 provided in the remote controller 200 and "Enter" which is key operation information are displayed.

The exit guide mark 467 is used to switch from the menu guide list screen 400 display mode to another mode, that is, to close the menu guide list screen. The menu key 211 of the remote controller 200 is used. Mark and key operation usage information "Exit" are displayed together.

Therefore, the user uses the up, down, left and right arrow keys 213, 215, 217 and 219 provided in the remote controller 200 to move the cursor on the items displayed in the interruption area 430. Just do it.

In addition, when the user operates the enter key 221 provided in the remote controller 200 when the user wants to select the menu where the cursor is located, the main controller 160 displays a subsequent screen corresponding to the selection of the menu where the cursor is located on the display device. do. That is, if there is a submenu dependent on the menu where the cursor is located, the submenu is displayed by the menu display method as described above. If there is no submenu, the execution screen of the selected menu is displayed on the stop area 430. Display.

Preferably, the main controller 160 is a menu in which the cursor is located when the right direction key 215 is selected among the direction keys 213, 215, 217, and 219 provided in the remote controller 200 with respect to the menu where the cursor is located. If there is no sub-menu dependent on, the processing is performed in the same manner as the operation of the enter key 221 to display the execution screen on the interruption area 430.

In addition, the main controller 160 displays the menu guide list screen so that the menu guide list screen is not displayed on the display device when the menu key 211 selection signal is input while the menu guide list screen 400 is loaded on the television 300. Unload to close the menu guide list screen.

Hereinafter, a method for controlling program viewing restriction setting according to an exemplary embodiment of the present invention will be described in detail with reference to the flowchart of FIG. 11 and FIGS. 4 to 9.

In order to set the parental level for each program of the video signal program recorded in the hard disk driver 151, the parental level setting menu 602 must be selected. The parental level setting function is called a parental lock, and is therefore indicated by the English name in FIG. 6.

In order to input the parental control setting menu 602 selection signal, the menu guide list initial screen 400 as shown in FIG. 4 is first selected by selecting the menu key 211 of the remote controller 200. To be displayed. On the menu guide list initial screen 400 listing the main menu, the cursor is positioned on the digital recorder menu 501 using the direction keys 217 and 219 of the remote controller 200 and the enter key 221 is input. The digital recorder menu 501 is selected to manage the programs recorded on the hard disk drive 151. When the digital recorder menu 501 is selected, the submenu of the digital recorder menu 501 including the program list menu 601 and the parental control setting menu 602 is displayed as shown in FIG. 5. Reference numeral 603 denotes an edit menu for editing a program, and 604 denotes a recording menu for setting regarding recording of a program input from the outside.

By operating the direction key 215 to move the cursor to the parental control setting menu 602 and then operating the enter key 221, the parental control setting menu 602 is selected. When the cursor is positioned on the parental control setting menu 602 and the enter key 221 is operated, the parental control setting menu 701 and the password change menu 702 which are submenus of the parental control setting menu 602 are displayed in the right area. do.

When the cursor is placed on the parental control setting menu 701 and the enter key 221 signal is input (S10), as shown in FIG. 9, a password input window 720 for password input is superimposed on the menu guide list screen 400. It is displayed (S20). The password is set in advance by the user and proceeds to the next step only when the set password matches the input password.

The main controller 160 determines whether the passwords match (S21). If the passwords match, as shown in FIG. 8, the main controller 160 changes the current screen and records the program recorded in the hard disk driver 151. Information on the list is displayed in the stop area 430 at step S30.

In the parental control setting screen, the guide information of the program stored in the hard disk drive 151 is listed. The program guide information includes a still image 701, a title 702, a storage date and time 703, and parental control setting information 705 extracted from a predetermined portion of the entire image of the program.

The still picture information 701 preferably extracts the first picture of the stored program. Through the still picture information 701, the user can grasp the corresponding program. In addition, the still picture information 701 is reduced to a small picture and displayed. It is preferable that the small screen is displayed by reducing the screen to 1/8 times.

The item 705 indicating the parental level setting information may display a lock type parental level setting mark 706 as shown in FIG. 8 to indicate that parental level is set. The parental control release may display the lock setting information item 704 empty or display a separate mark without displaying the lock setting mark 706. The setting and release of the parental level is changed by placing the cursor on the parental level setting information item 705 and operating the enter key 221.

When the parental level is set for each program as described above, the parental level setting information is recorded in the user database according to the input signal (S31). After the parental control is set, a program list screen request signal is input using the remote controller 200 to manage the program by listing the guide information of the program (S40). Is not displayed.

That is, as shown in FIG. 8, when the parental level is set to the second program whose title is 'Airplane' and the program list screen request signal is input, only the program guide information except for the information about 'Airplane' is shown as shown in FIG. 9. Listed up in the list (S41).

Therefore, children or teenagers can not even know whether the program is set to the parental control is recorded in the hard disk drive 151, it can be surely protected from harmful programs.

According to the present invention, when the parental level is set for a program recorded in the storage device of the video recording / reproducing apparatus, a program in which the parental level is set when displaying the list of guide information of the program is excluded from the list of guide information. Even the record of the program is unknown, and therefore cannot be implemented, so that the child or adolescent cannot access the harmful program.

While the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

Claims (13)

A video signal received from a video signal generating source may be recorded in a storage device, and output to a external display device by reproducing the recorded video signal. The video recording / reproducing apparatus may set parental control to the recorded video signal program. In An interface unit for receiving a user input signal for controlling an operation of an image recording / reproducing apparatus from an external input apparatus; And A program list for setting whether to restrict viewing for each program in response to a parental control setting signal for a program recorded in the storage device input from the external input device, and listing guide information about the program recorded in the storage device; And a main controller configured to display and display a list of programs on the display apparatus, except for the program for which the parental control is set, from among the programs recorded in the storage device when a screen request signal is input. The method of claim 1, The main controller, when the parental control setting request signal is input from the external input device, displays the parental control setting screen on which the guide information of the program recorded in the storage device including the program for which the parental control is set is listed. The video recording / reproducing apparatus displayed on the display device, wherein the guide information includes information on whether to set the parental level. The method of claim 2, The video recording / reproducing apparatus further comprises password setting means for setting a password. The method of claim 3, The main controller displays the parental control setting screen on the external display device when the parental control setting request signal is input, when a password matching the password set by the password setting means is input. Device. The method of claim 2, The parental control setting screen includes a mark indicating whether to set parental control for each program. The method of claim 2, The main controller, when the parental control setting signal is input to the programs listed on the parental control setting screen, changes the information on whether or not the parental control setting is set for each program according to the signal. . The method of claim 1, And the information on whether the parental level is set for the program is recorded in a user data area of the program file recorded in the storage device. The method of claim 1, And a user database storing user information for each program including information on whether to set a parental control of the program. The method of claim 8, And the main controller is configured to display a program list by using user information of the user database when it is determined that the program list request signal is input. The method of claim 1, And the guide information of the program comprises a still image extracted from the program. In a control method of a video recording / reproducing apparatus, the video signal received from a video signal generating source can be stored in a memory device and reproduced and output to a external display device. a) setting a parental control level for each program according to the signal when a parental control setting signal is input to the program recorded in the storage device; And b) if a program list screen display request signal for listing the guide information of the program recorded in the storage device is input, listing and displaying guide information about a program except for a program for which viewing is restricted among the programs; Control method of a video recording / reproducing apparatus comprising a. The method of claim 11, And the video recording / reproducing apparatus is provided with a password setting means. The method of claim 12, Step a) is If it is determined that the parental level setting request signal is input, displaying a password input window; Determining whether the password input through the password input window coincides with the password set through the password setting means; Displaying a list of programs recorded in the storage device including the program for which the parental control is set, if it is determined to be matched in the step, and displaying whether or not the parental control setting is set for each program; Setting a viewing restriction for each program according to a signal input from the external input device; And And recording viewing restriction setting information for each program set in the step.