JP4467718B2 - Receiving apparatus and control method of receiving apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention Receive broadcast data Receiver And control method of receiving apparatus In particular, the present invention relates to a program search process.
[0002]
[Prior art]
With digital TV broadcasting, it is possible to broadcast hundreds of channels, and it is difficult for a user to find a desired program from a very large number of programs. Therefore, the program information data (EPG; Electric Program Guide) transmitted together with the video data or the like is used to assist the user in selecting a program, or the EPG data is searched based on the search conditions set by the user. There is a function for easily finding a program desired by the user.
[0003]
[Problems to be solved by the invention]
However, in the conventional program selection method, when searching for a user-desired program on the EPG screen based on EPG data, it is necessary to check the EPG display switching operation or the user's visual contents of the program. It was very difficult to find.
[0004]
In addition, when searching for a desired program by setting a search condition by the user himself, not only is the operation for setting the search condition complicated, but a series of search processes are completed after searching through the search target. For this reason, if a program search is to be performed in real time for a currently receivable program, the user has to repeatedly perform an operation for the search process, which is very troublesome.
[0005]
Furthermore, in the program search on the EPG screen and the program search for setting the search condition, the program screen being viewed is switched to the EPG screen or the search condition setting screen, or those screens are multiplexed on a part of the program screen. It was a hindrance to watching the program.
[0006]
The present invention is to solve the above-described problems.
[0007]
Still another object of the present invention is to search a user-desired program in real time from programs received by an easy operation without hindering viewing of the program displayed on the screen.
[0008]
Still another object of the present invention is to make it possible to switch from a program screen being viewed to a searched program screen by an easy operation.
[0009]
[Means for Solving the Problems]
Under such a purpose, the receiving device of the present invention includes a receiving unit that receives video data and audio data related to a plurality of programs included in broadcast data, and program information data related to the plurality of programs, and the receiving unit. Display means for displaying video data of a selected program selected by a user among video data related to a plurality of programs to be received; When a predetermined time has elapsed since the video data of the selected program selected by the user was displayed on the display unit, The program information included in the program information data of the selected program is used as a search condition to execute processing for searching program information data corresponding to a plurality of programs being broadcast. Mode Set automatic search mode Accept Setting means; Via the setting means Automatic search mode Is set The predetermined time has elapsed since the video data of the selected program selected by the user was displayed on the display unit. At that point Using program information included in program information data of the selected program as a search condition, search means for searching for program information data corresponding to a plurality of programs being broadcast, and an extracted program corresponding to the search condition by the search by the search means And control means for executing control for displaying information on the extracted program on the display unit together with video data of the selected program being displayed on the display unit.
[0010]
Also, the control method of the receiving device of the present invention is a control method of a receiving device having a receiving unit for receiving broadcast data, and using the receiving unit, video data relating to a plurality of programs included in the broadcast data and A receiving step for receiving audio data and program information data relating to the plurality of programs, and video data of a selected program selected by the user among the video data relating to the plurality of programs received in the receiving step are displayed on the display unit. A display step; When a predetermined time has elapsed since the video data of the selected program selected by the user was displayed on the display unit, The program information included in the program information data of the selected program is used as a search condition to execute processing for searching program information data corresponding to a plurality of programs being broadcast. Mode Set automatic search mode Accept Configuration steps; In the setting step Automatic search mode Is set, The predetermined time has elapsed since the video data of the selected program selected by the user was displayed on the display unit. At that point A search step for searching for program information data corresponding to a plurality of programs being broadcast using the program information included in the program information data of the selected program as a search condition, and an extracted program corresponding to the search condition by the search by the search step And a control step for executing control for displaying information on the extracted program on the display unit together with video data of the selected program being displayed on the display unit.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0014]
FIG. 1 is a block diagram showing the configuration of a digital TV broadcast receiving apparatus to which the present invention is applied.
[0015]
In FIG. 1, a signal received by an unillustrated antenna or cable is input to a tuner unit 101 or a tuner unit 102. The tuner unit 101 and the tuner unit 102 perform processes such as demodulation and error correction on the input signal to generate digital data in a format called a transport stream. Further, the generated transport stream (TS) data is output to the descrambler 103.
[0016]
Here, the tuner unit 101 is a program viewing tuner, and the tuner unit 102 is a program search tuner. As will be described later, during the favorite mode, TS data including program video / audio data of the channel that the user is viewing is generated in the tuner unit 101, and the tuner unit 102 sequentially tunes to different TSs with different transmission paths. TS data including program video / audio data of the channel is generated. Details will be described later.
[0017]
In addition, TS data transmitted from the broadcasting station is time-division multiplexed with video data, audio data, character data, and the like of a plurality of channels, and EPG data is multiplexed every predetermined time. Furthermore, TS data is transmitted in packet units, and a PID (Packet Identification) is added to the head of the packet.
[0018]
The descrambler 103 receives the descramble key information included in the TS data and the IC card control unit 116 when TS data that is scrambled for viewing restriction is input from the tuner unit 101 or the tuner unit 102. On the basis of the key information output from the scrambler, descrambling is performed and output to the demultiplexer 104.
[0019]
Here, the IC card control unit 116 includes an IC card in which key information for deciphering key information for descrambling included in user contract information and TS data is stored, and is input from the descrambler 103. When there is key information for solving the descrambling key information, the key information is output to the descrambler 103.
[0020]
When descrambler 103 receives TS data that has not been scrambled from tuner sections 101 and 102, descrambler 103 outputs TS data to demultiplexer 104 as it is.
[0021]
The demultiplexer 104 identifies the PID added to each data from the TS data input from the descrambler 103, and the video data D1 relating to the program currently being broadcast in the channel selected by the operation of the operation unit 113. Audio data D2 is extracted. Further, the extracted data is output to the video decoder 105 and the audio decoder 106. Here, the operation unit 113 includes a remote controller and a light receiving unit in addition to the operation unit installed on the main body side.
[0022]
Further, the demultiplexer 104 extracts the EPG data D3 from the above-described TS data, and outputs it to the RAM 117-2 built in the EPG decoder 107 and the system control unit 117. Here, the EPG data D3 is stored in TMP_1 of the RAM 117-2 as will be described later, and is used for setting search conditions and creating an EPG screen.
[0023]
The EPG data is periodically received by the tuner unit 101, and the latest EPG data is always updated in the RAM 117-2. Furthermore, EPG data is received in response to an EPG data reception instruction by operating the operation unit 113, and the received EPG data is stored in the RAM 117-2.
[0024]
Further, as shown in FIG. 1, each block is connected to a common bus 120.
[0025]
First, video data will be described. The video decoder 105 performs MPEG2 decoding processing on the video data D1 input from the demultiplexer 104, and outputs the decoded video data to the display control unit. The display control unit 108 causes the image display unit 111 to display the video data input from the video decoder 105 and the screen configuration unit 110 by switching or multiplexing the screen according to the operation of the operation unit 113.
[0026]
Here, the screen configuration unit 110 creates an EPG screen, a UI screen that supports user operations, and the like as described later in accordance with the operation of the operation unit 113, and outputs them to the display control unit 108.
[0027]
The image display unit 111 also includes a monitor (not shown) and a video signal input terminal.
[0028]
Next, audio data will be described. The audio decoder 106 performs MPEG2 decoding processing on the audio data D2 input from the demultiplexer 104, and outputs the decoded audio data to the DAC 109. The DAC 109 performs D / A conversion processing on the audio data input from the audio decoder 106 and outputs the result to the audio output unit 112. The audio output unit 112 includes a speaker and an audio signal input terminal (not shown).
[0029]
The EPG data will be described. The data required to make up an EPG is transmitted in a data structure defined by the “IEC13818-1 MPEG2 SYSTEM” or the standard “Program Display Information Used for Digital Broadcasting” by the Japan Radio Industry Association (commonly known as ARIB). Is done. The main configuration data is related to the bouquet, such as the name of the organization channel, the name of the broadcaster, etc. SDT (Service Description Table) that transmits information about the organization channel, the name of the bouquet (set of organization channels), the organization channel included BAT (Bouquet Association Table) that transmits information, EIT (Event Information Table) that transmits information about the program, such as program name, broadcast start date and time, description of contents, TDT (Time) that transmits current date and time information Date Table).
[0030]
When the operation unit 113 performs an operation for displaying an EPG, an EPG display instruction from the operation unit 113 is input to the system control unit 117.
[0031]
When an EPG display instruction is input from the operation unit 113, the system control unit 117 reads out necessary EPG data from the RAM 117-2 and outputs it to the EPG decoder 107. The EPG decoder 107 performs a decoding process on the EPG data D3 and outputs the decoded EPG data to the screen configuration unit 110.
[0032]
Based on the EPG data input from the EPG decoder 107 and the control signal from the system control unit 117, the screen configuration unit 110 generates and displays various signals such as a character signal for configuring an EPG screen (not shown). Output to the control unit 108. The display control unit 108 outputs a video signal to the image display unit 111 so as to switch and display a video screen, an EPG screen, or the like.
[0033]
In addition, the system control unit 117 executes a program stored in the ROM 117-1 for storing a program for controlling each unit and a font such as a character pattern, a RAM 117-2 including a data area as described later, and a program stored in the ROM 117-1. CPU 117-3 is provided.
[0034]
With such a configuration, the system control unit 117 allows the tuner units 101 and 102, the descrambler 103, the demultiplexer 104, and the decoder units in accordance with the operation of the operation unit 113 having various operation switches such as channel selection and power ON. 105 to 107, the display control unit 108, the DAC 109, the screen configuration unit 110, and the like.
[0035]
FIG. 2 shows a configuration example of a remote controller that is a part of the operation unit 114. However, this drawing shows only buttons for performing operations for realizing functions necessary for explaining the present embodiment, and the operation buttons necessary for an actual receiving apparatus are not limited to this. In addition to the one shown in FIG. 2, a pointing device such as a mouse can be used.
[0036]
In FIG. 2, 201 is a light emitting unit for performing infrared communication between a remote controller and a light receiving unit provided in the digital broadcast receiving apparatus body, 202 is a power button for turning on / off the power, 203 is a display EPG switching setting screen, A menu button for displaying a menu screen for displaying a search condition setting screen or the like, which will be described later, 204 is an EPG button for displaying an EPG screen, 205 is a favorite button for setting a mode to a favorite mode (search mode) described later, 206 is a favorite cancel button for canceling a favorite mode, which will be described later, 207 is a cursor button for moving the selection cursor up, down, left and right, 208 is a determination button for determining the area selection designated by the selection cursor, Reference numeral 209 denotes a numeric keypad for inputting a channel number.
[0037]
Next, each area of the RAM 117-2 included in the system control unit 117 will be described.
[0038]
A TIM (timer counter) is used when a favorite mode is automatically set after a predetermined time has elapsed from the start of program viewing as described later.
[0039]
MODE is a flag indicating whether or not the mode is the favorite mode. MODE = 1 when the mode is the favorite mode, and MODE = 0 when the mode is not the favorite mode.
[0040]
S_CH (search channel counter) is for counting the operations when the tuner unit 102 sequentially performs the tuning operation, and takes a value from 1 to N.
[0041]
TMP_1 is a memory for storing the EPG data D3 in the TS received by the tuner unit 101. When the favorite mode is set as will be described later, the program information of the currently viewed program is stored in the KMEM.
[0042]
TMP_2 is a memory for storing the EPG data D3 in the TS received by the tuner unit 102, and the program information of the program corresponding to the search condition is stored in the SMEM as will be described later.
[0043]
KMEM (favorite search key memory) stores program information of a program currently being viewed as a search condition. For example, program information such as a channel number (CH), genre information (GENRE), and program performer information list (ACT_LST) extracted from EPG data is stored in each area.
[0044]
The SMEM (search result memory) is an area for storing program information of programs corresponding to the search condition, and the content of the stored program information is the same as that of KMEM.
[0045]
The IMEM (icon data memory) stores video data (IMG) for one frame of the program in order to display a reduced image of the program corresponding to the search condition, and each video data is stored in the SMEM. A number (SMEMNO) for associating with program information is assigned.
[0046]
The ICNT (icon counter) is for counting the number of video data stored in the IMEM.
[0047]
Next, the operation flow during the favorite mode will be described. The favorite mode is a mode for searching for a program related to the currently viewed program. The program information of the currently viewed program is used as a search condition, and channel information is sequentially scanned in the tuner unit 102 to search for program information of the received program. Search processing is performed as a target. FIG. 3 shows an operation flow of the system control unit 117 in the favorite mode.
[0048]
Here, in the flowchart of FIG. 3, the favorite mode is entered when the favorite button 205 is pressed. However, the favorite mode may be automatically entered when a predetermined time elapses from the start of program viewing. . At that time, the TIM in the RAM 117-2 is used to measure the passage of time from the start of program viewing.
[0049]
Whether the favorite mode is set by pressing the favorite button 205 or whether the favorite mode is automatically set when a predetermined time has elapsed since the start of program viewing can be set on a setting screen (not shown).
[0050]
In S301, it is determined whether or not the favorite button 205 has been pressed. If it is determined that the button has been pressed, MODE = 1 is set in the RAM 117-2 (S302).
[0051]
In S303, the currently viewed program information is read from the EPG data stored in TMP_1 of the RAM 117-2, and stored in the KMEM. Here, the program information stored in the KMEM is a channel number, genre information, program performer information, etc. as described above.
[0052]
In step S304, the screen configuration unit 110 is controlled to display that the favorite mode is being executed, and the screen configuration unit 110 generates a video signal related to a predetermined mark (character video) as shown in FIG. Output to.
[0053]
In S305, the tuner unit 102 receives an arbitrary channel and outputs EPG data in the TS in which the channel is multiplexed to the TMP_2. In S306, the program information of the program being broadcast on the channel received by the tuner unit 102 is read from the EPG data stored in TMP_2, and the program information of the currently viewed program stored in the KMEM (search condition) In comparison with the above, it is determined whether the program being broadcast on the channel received by the tuner unit 102 satisfies the search condition.
[0054]
The search conditions used here can be set on a condition setting screen (not shown), and the programs required from the program information stored in KMEM and the EPG data stored in TMP_2 based on the set conditions. Read and compare information. For example, when the genre information is set as a search condition on the condition setting screen, the genre information stored in the KMEM in S306 and the genre information of the program received by the tuner unit 102 from the EPG data stored in the TMP_2. Is read and compared. The condition setting screen is displayed when the menu button 203 in FIG. 2 is pressed, and the search condition setting can be changed at any time.
[0055]
If it is determined that the program being broadcast on the channel received by the tuner unit 102 meets the search condition, it is determined whether the program information of the program is already stored in the SMEM of the RAM 117-2 (S310). , The video data for one frame of the program output from the video decoder 105 is overwritten on the video data of the program stored in the IMEM of the RAM 117-2 (S311), and S314. Proceed to
[0056]
If the program information of the program that meets the search condition in S310 is not yet stored in the SMEM, the program information of the searched program is stored in the SMEM and received by the tuner unit 102 output from the video decoder 105. The video data for one frame from the video data of the existing program is stored in the IMEM (S312). Further, ICNT for counting the number of video data stored in the IMEM is incremented by 1 (S313), and the process proceeds to S314.
[0057]
On the other hand, if it is determined in S306 that the program being broadcast on the channel received by the tuner unit 102 does not meet the search condition, whether or not program information of the same channel as the channel of the program is stored in the SMEM. If it is determined (S307) and it is determined that the program information of the same channel as the channel of the program is stored in the SMEM, the stored program information of the channel is deleted from the SMEM, and the video data of the channel is further deleted. Is deleted from IMEM (S308). Further, ICNT for counting the number of video data stored in the IMEM is decremented by 1 (S309), and the process proceeds to S314.
[0058]
With such a configuration, when a broadcast program on a certain channel received by the tuner unit 102 is changed and a program being broadcast on the channel does not meet the search condition, a program that has already been broadcast is stopped. Program information can be deleted.
[0059]
In S <b> 314, the video data stored in the IMEM is read out and output to the screen configuration unit 110 in order to multiplex the reduced image of the program corresponding to the search condition with the program video being viewed.
[0060]
In S315, it is determined whether or not the program being viewed has been changed due to a channel change instruction by the operation of the operation unit 113 or the end of broadcast of the program, and if it is determined that the program to be viewed has been changed, KMEM, SMEM, or IMEM The stored data is cleared, INCT is reset, and the process returns to S303.
[0061]
On the other hand, when it is determined that the viewing program is not changed, it is determined whether or not the favorite button 205 is pressed (S317), and when it is determined that the favorite button 205 is pressed, the flowchart A shown in FIG. The process returns to S305. Flowchart A shows the flow of operations when the favorite button 205 is pressed during the favorite mode to set the reduced screen displayed as shown in FIG. 4 as the main screen and the program information of the program on the screen as a search condition. Details will be described later.
[0062]
If it is determined that the favorite button 205 has not been pressed, it is determined in S318 whether the favorite cancel button 206 has been pressed. If it is determined that the favorite cancel button 206 has been pressed, the data stored in KMEM, SMEM, and IMEM is cleared, ICNT is reset, MODE = 0, and the favorite mode displayed on the screen is displayed in S323. Is deleted, and the process ends.
[0063]
On the other hand, if it is determined in S318 that the favorite cancel button 206 has not been pressed, it is determined whether or not the search channel counter S_CH = N in the RAM 117-2 (S319), and if it is determined that S_CH = N, S_CH is reset, and the process proceeds to S305. If it is determined that S_CH = N is not satisfied, S_CH is incremented by 1 (S320), and the process proceeds to S305.
[0064]
Here, FIG. 4 shows a screen display example in the favorite mode. In FIG. 4A, 401 is a main screen displaying a program video currently being viewed, and 402 is a mark indicating that the favorite mode is being executed. 4B to 4D, as described above, as a result of the search processing, reduced screens 403, 404, and 405 of programs related to the program displayed on this screen 401 are sequentially displayed. FIG. 4E shows an example in which the display of the screen 404 is deleted because the program broadcast on the reduced screen 404 has ended.
[0065]
Then, with respect to the flowchart A shown in FIG. 3B, for example, a case where the favorite button 205 is pressed during the display state of FIG. 4D will be described.
[0066]
In S324, it is determined whether or not ICNT = 0. If ICNT = 0, that is, if a reduced image is not displayed on the screen, the process returns to S305 in FIG. If ICNT = 0, the program information of the currently viewed program video (screen 401) is read from TMP_1 and stored in SMEM, and video data for one frame of the program output from the video decoder 105 is stored in IMEM. The next number of the last SMEMNO assigned to the video data is added and stored in the IMEM (S325).
[0067]
In S326, the program information of the program (screen 403) related to the video data to which the first SMEMNO is allocated in the IMEM is stored in the KMEM as a new search condition.
[0068]
In S327, based on the program information on the screen 403 stored in the SMEM, for example, the channel number, the tuner unit 101 controls the tuner unit 101 to receive the channel related to the screen 403.
[0069]
In S328, the program information and video data of the program related to the screen 403 stored in the IMEM and SMEM are cleared.
[0070]
In S329, the reduced screens 404, 405, 401 relating to the video data stored in the IMEM are displayed in the order of SMEMNO on the currently viewed program video (screen 403). FIG. 4D is an example of the display.
[0071]
As described above, in this embodiment, during the favorite mode, the search processing operation is always performed in parallel with the viewing of the program, and the reduced image of the program is displayed on the screen as soon as the program corresponding to the search condition is detected. The program desired by the user can be searched in real time from among the received programs by an easy operation without disturbing the viewing of the program displayed on the screen.
[0072]
Furthermore, in this embodiment, while the reduced image of the program corresponding to the search condition is displayed, the reception of the reduced image program is started by pressing the favorite button, and the display screen is switched to the program. It is possible to switch to the searched program screen by an easier operation than the program screen in the middle.
[0073]
In the present embodiment, the favorite mode search process is to search for a program related to the currently viewed program. However, the searched program may be other than the program related to the currently viewed program, and is not shown. Arbitrary search conditions may be set on the search setting screen, and search processing may be performed based on the set search conditions.
[0074]
For example, if “favorite mode” is set after selecting “sports” and “baseball” as search conditions on the search setting screen, any sports program related to baseball will be broadcast no matter what program is being viewed. When the channel is started on the channel or the sports program is being broadcast, a reduced image of the sports program is displayed on the screen, and the user can recognize the search result in real time.
[0075]
In this embodiment, the reduced image of the program corresponding to the search condition is displayed on the right side of the screen. However, for example, when there are so many search condition applicable programs that the reduced image cannot be displayed on the screen, May only display a mark indicating that the program corresponding to the search condition is detected, and may display a list of programs corresponding to the search condition by pressing a favorite button.
[0076]
FIG. 5 shows an example of the display. Reference numeral 501 denotes a mark indicating that a search condition corresponding program has been detected, and reference numeral 502 denotes a list display of programs corresponding to the search condition displayed by pressing the favorite button.
[0077]
In this embodiment, when the favorite mode is pressed while the program corresponding to the search condition is displayed on the screen, the reduced image of the program corresponding to the search condition and this screen are switched, but the screen is displayed on the screen. The reduced image of the program corresponding to the search condition may be configured such that the cursor can be selected by operating the operation unit 113, and the reduced image and this screen are switched by selecting and determining a desired reduced image.
[0078]
【The invention's effect】
As described above, according to the present invention, a user-desired program can be searched for in real time from programs received by an easy operation without hindering viewing of the program displayed on the screen.
[0079]
In addition, the searched program screen can be switched to the searched program screen by an easy operation.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a digital TV receiver to which the present invention is applied.
FIG. 2 is a diagram illustrating an example of a remote controller included in an operation unit.
FIG. 3 is a flowchart showing the operation of the system control unit 117 during the favorite mode.
FIG. 4 is a diagram illustrating a display example of a screen in a favorite mode.
FIG. 5 is a display example of a mark indicating that a program corresponding to a search condition has been detected and a list display of programs corresponding to the search condition.

Claims (4)

Receiving means for receiving video data and audio data related to a plurality of programs included in broadcast data and program information data related to the plurality of programs;
Display means for displaying video data of a selected program selected by a user among video data related to a plurality of programs received by the receiving means;
When a predetermined time elapses after the video data of the selected program selected by the user is displayed on the display unit, the program information included in the program information data of the selected program is used as a search condition for a plurality of programs being broadcast. Setting means for accepting the setting of an automatic search mode, which is a mode for executing processing for searching for corresponding program information data;
When the automatic search mode is set via the setting means, the program information of the selected program when the predetermined time elapses after the video data of the selected program selected by the user is displayed on the display unit. Search means for searching program information data corresponding to a plurality of programs being broadcast, using program information included in the data as a search condition;
Control for displaying information on the extracted program on the display unit together with video data of the selected program being displayed on the display unit when it is determined by the search by the search means that an extracted program corresponding to the search condition exists. Control means for executing
A receiving apparatus comprising: The receiving means receives a first tuner that receives video data of the selected program, video data, audio data, and program information data corresponding to a plurality of programs being broadcast on a channel different from the selected program. A second tuner, and
When it is determined that there is an extracted program corresponding to the search condition, the control means records a still image from the video data of the extracted program received using the second tuner to generate a reduced image, The receiving apparatus according to claim 1, wherein control for displaying the reduced image on the display unit together with video data of the selected program being displayed on the display unit is executed. A control method of a receiving device having a receiving unit for receiving broadcast data,
A receiving step of receiving video data and audio data related to a plurality of programs included in broadcast data and program information data related to the plurality of programs using the receiving unit;
A display step of displaying video data of a selected program selected by the user on the display unit among the video data related to the plurality of programs received in the receiving step;
When a predetermined time elapses after the video data of the selected program selected by the user is displayed on the display unit, the program information included in the program information data of the selected program is used as a search condition for a plurality of programs being broadcast. A setting step for accepting a setting of an automatic search mode, which is a mode for executing processing for searching for corresponding program information data;
If the automatic search mode by the setting step is set, when the video data of the selected program selected by the user has passed the predetermined time is displayed on the display unit, the program information data of the selected program A search step for searching for program information data corresponding to a plurality of programs being broadcast using the included program information as a search condition;
Control that displays information about the extracted program on the display unit together with video data of the selected program being displayed on the display unit when it is determined by the search in the search step that an extracted program that meets the search condition exists. A control step for performing
A method for controlling a receiving apparatus. The receiving unit receives a first tuner that receives video data of the selected program, video data, audio data, and program information data corresponding to a plurality of programs being broadcast on a channel different from the selected program. A second tuner, and
In the control step, when it is determined that there is an extracted program corresponding to the search condition, a still image is recorded from the video data of the extracted program received using the second tuner to generate a reduced image, The control method for the receiving apparatus according to claim 3, wherein control for displaying the reduced image on the display unit together with video data of the selected program being displayed on the display unit is executed.

Images