JP2002209155A - Program list display system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a program list display system for automatically adjusting the display contents of a program list in accordance with the size of an area where the program list is displayed. SOLUTION: The program list display system obtains the size of the area where the program list is displayed and complies and outputs the program list so that it is settled in the size without reducing the total time required for displayed program information. Redundant information is deleted in accordance with prescribed priority until the size of the program list becomes not more than the size or program information is simplified by a prescribed simplifying method.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic program guide display system for automatically adjusting the display contents of an electronic program guide of a television broadcast according to a user's environment, and more particularly to a screen size that can be displayed in the user's environment. , And an electronic program guide display system that generates an electronic program guide suitable for the screen size while maintaining the listability.

[0002]

2. Description of the Related Art At present, in addition to television broadcasting using terrestrial waves, a communication satellite (CS) is used.
e) CS broadcasting and broadcasting satellite (BS: Broadcasting)
Satellite broadcasting) is provided.

In particular, with the advent of the so-called satellite broadcasting using the above-mentioned communication satellites and broadcasting satellites, the number of channels has increased at a stretch, and a so-called multi-channel era has been entered. At the same time, digital broadcasting has become the mainstream in the form of digital broadcasting instead of conventional analog broadcasting due to the development of digital broadcasting technology, and higher image quality has been achieved compared to conventional terrestrial television broadcasting. , High-quality broadcasting has been realized.

[0004] On the other hand, a television program guide that presents the contents of television programs by channel and time zone is based on a traditional method transmitted by paper media such as newspapers and magazines.
It is evolving into new ways, such as those provided via the Internet or terrestrial television broadcasting. Furthermore, in the above-mentioned CS broadcast and BS broadcast, a television program guide is provided by digital data via a satellite.

[0005] In the multi-channel era brought about by satellite broadcasting, television program guides have inevitably become bloated, and at present, programs of various variations can be viewed on a very large number of channels. However, in order to browse programs of such a huge number of channels, a conventional paper medium prints a program guide over an extremely large amount of space, and a user can select a program to be viewed on any channel. It is difficult to know when it will be broadcast.

When a program table is provided by digital data, it is possible to efficiently search and browse the program contents and performers using a computer or the like.

For example, in the CS broadcast, a program guide is provided as digital data, which is also called an electronic program guide or an electronic program guide (EPG). The electronic program guide provides the start time and contents of a program broadcast on each channel as data having a predetermined format. At homes receiving CS broadcasts, these data are received by a set of CS antenna and digital CS broadcast tuner, and the data is edited by the CS broadcast tuner, personal computer, television or the like to create an electronic program guide. Then, the data is finally displayed on a predetermined output device such as a monitor of a personal computer or a television monitor. The electronic program guide displayed in this way is used not only for the user to confirm the start time and contents of the program, but also for scheduled recording and the like.

[0008] The provision of a program guide is performed not only via a satellite like the above-mentioned CS broadcast but also via a terrestrial wave or the Internet. These program guides can also be called electronic program guides because they are received as digital data. As can be seen from the fact that these data can be obtained from terrestrial broadcasting, even in the case of analog broadcasting, it is possible to receive editable program guide data composed of digital data by a predetermined method.

For example, some terrestrial waves use a part of a band corresponding to a predetermined channel for transmitting data constituting an electronic program guide for a certain period of time. The data is received by a computer such as a personal computer via, for example, an MPEG capture board equipped with a TV tuner, and then assembled by a predetermined application, and displayed as an electronic program guide on a monitor or the like.

[0010] Similarly, data constituting the electronic program guide is also provided via the Internet. A personal computer or the like that can connect to the Internet can display the electronic program guide on a monitor by receiving the data using a protocol such as HTTP.

In a conventional electronic program guide display system for CS broadcasting, a computer provides an electronic program guide including information on channels and information representing program contents at each time on each channel, and provides them in a window of variable size. Some types are displayed. The size of the window can be changed according to the designation of the user, but the order and size of the displayed information are fixed.

The system includes a program table data storage device,
The computer includes a computer and a program guide output device. The computer includes an output image size acquisition unit and an image data generation unit. Further, the system generates image data including predetermined information in an output image size based on the program guide data stored in the program guide data storage device, and outputs the generated image data to the program guide output device.

[0013]

However, in the above-described conventional system, the components of the program table (each item for indicating channel and program information) and the size of each element are irrespective of the displayable image size. Is fixed, when the output image size is small, the right part and the lower part of the program guide may not be displayed. Therefore, the components located in the right or lower part of the program guide are not displayed irrespective of whether they are important information. In the right part, program information of a predetermined time zone of each channel is often displayed, and if this part is not displayed, the time of the displayed program is reduced. On the other hand, if the lower part is not displayed, the number of displayed channels is reduced.

On the other hand, components such as a channel number, a channel mark, and a channel name, which indicate channel information, are often located on the left side of the program guide, and are not hidden even if the output image size is small. .

Since these channel information are essentially the same information, when the output image size is small, the program information on the right side or the lower part is not displayed, so that the information of the program guide is lost as a whole.

In order to prevent the information in the program guide from being lost as described above, there is also a method of scrolling the display screen or the like up and down or left and right using a scroll bar to display the hidden information. However, in this method, it is difficult to see at a glance the program table and to know which program is available at which channel, that is, it is difficult to maintain the list of the program table.

[0017]

Therefore, in order to solve the above-mentioned problems, the present invention includes a program table so as to omit the output of components having redundant information according to the output image size. A program guide display system for automatically selecting information is provided.

Further, the present invention provides a program guide display system for automatically reducing the size of each component by omitting low priority information according to the output image size.

According to the first embodiment of the present invention, the storage means for storing the electronic program guide, the display means for displaying the electronic program guide, and the display means for displaying the electronic program guide on the display means Detecting means for detecting the image size of the electronic program guide, and, when the display size of the electronic program guide is larger than the image size, editing the contents of the electronic program guide so that the display size of the electronic program guide is smaller than the image size. A program guide display system configured to include an editing unit is provided.

As a result, an electronic program guide adjusted to match the actual display size is displayed on a monitor or the like.

According to a second embodiment of the present invention, in the first embodiment, the electronic program guide includes, for each broadcast channel, channel information for identifying the channel and broadcast contents in each time zone. Has program information to represent,
There is provided a program guide display system configured to edit the contents of the electronic program guide so as to minimize the loss of the channel information and the program information.

As a result, the electronic program guide adjusted to the actual display size is displayed on a monitor or the like without greatly reducing the information in the program guide while maintaining the listability to some extent.

According to a third embodiment of the present invention, in the first embodiment, the electronic program guide has a plurality of display items for each broadcast channel, and the editing means includes: There is provided a program guide display system configured to adjust the display size by selecting at least one and hiding the selected display item.

[0024] This makes it possible to selectively hide redundant information, and consequently to display a program table with a list without greatly reducing information in the program table. it can.

According to the fourth embodiment of the present invention, a step of displaying an electronic program guide, a step of detecting an image size when the electronic program guide is displayed, and , If larger than the image size,
Editing the contents of the electronic program guide so that the display size of the electronic program guide is equal to or smaller than the image size.

Thus, the electronic program guide adjusted to fit the actual display size is displayed on a monitor or the like.

According to the fifth embodiment of the present invention, a computer is provided with storage means for storing an electronic program guide, display means for displaying the electronic program guide, and display of the electronic program guide on the display means. Detecting means for detecting an image size when the electronic program guide is displayed, and when the display size of the electronic program guide is larger than the image size, the content of the electronic program guide is set to be equal to or smaller than the image size. And a program for causing the program to function as an editing unit.

By loading this program into a memory or the like in the computer, the CPU in the computer is loaded.
Processes the instructions of the program, whereby an electronic program guide adjusted to fit the actual display size is displayed on a monitor or the like.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a program guide display system according to a first embodiment of the present invention will be described with reference to FIG. The program guide display system 100 shown in FIG. 1 includes a program guide data storage device 110 in which electronic program guide data is stored, a computer 120, and a program guide output device 130.
The computer 120 further includes an output image size obtaining unit 121 that obtains the size of the output image, and an image configuration determining unit 12 that determines the content of the output image based on a predetermined rule.
2, and an image data generation unit 123 that generates the content of the determined output image as image data.

Such a program guide display system 100 includes:
It is generally used in homes that watch television broadcasts. In this case, the program table data storage device 110 and the computer 120 may be incorporated in a television broadcast receiving tuner, and a configuration in which a home television is used as the program display device 130 may be adopted. Further, the computer 120 is realized by a personal computer, and the program table data storage device 110 is used as a personal computer.
A CRT monitor connected to a personal computer or a home television may be used as the program guide display device 130 using a hard disk in the computer.

The program guide data storage device 110 temporarily stores (digitized) program guide data provided as digital data. As described above, the program guide data can be acquired from the Internet via, for example, the network interface of the computer 120, or can be received via the CS broadcast tuner. Further, as described above, it is also possible to receive by terrestrial television broadcasting.

The output image size obtaining section 121 obtains the image size of the program guide to be output. This is determined by referring to the designation of the display size in the application for displaying the program guide and the resolution of the program guide display device 130.

The image configuration determining unit 122 determines, based on the obtained output image size, a configuration for outputting a program guide with a sufficient amount of information for the size. First, components to be omitted, that is, not to be displayed, are determined based on a predetermined priority. Second, information in each component is simplified based on a predetermined priority and rules. I do. Such omission and simplification are repeated until the program table becomes equal to or smaller than the output image size.

The image data generating section 123 sets each bit so that each of the constituent elements whose contents have been determined is displayed with the determined contents, and generates image data for an output image.

The program guide output device 130 outputs the image data and provides the user with a program guide. The program listing is
In this way, the user is informed of what program each channel is broadcasting at what time. In addition to this, information for reserving the program and information for automatically reserving based on the information are provided. Other mechanisms can be provided.

Next, with reference to FIG. 2, the general structure of the program guide data before being omitted and simplified and the respective components will be described.

As described above, the data is data obtained by the Internet, CS broadcasting, or the like, but can be received in various forms. For example, one record contains all the information of a program related to one channel, or one record contains the information of one program and the channel on which the program is broadcast. Therefore, it should be noted that the program guide data shown in FIG. 2 is a state after receiving these individual records and ideally assembling them.

Although the program guide data is shown as being assembled as an electronic program guide as shown in FIG. 2 for convenience of explanation, it is stored in the program guide data storage device 110 as a set of received records. Can be stored.

The electronic program guide of FIG. 2 includes a channel number display column P1, a channel mark display column P2, a channel name display column P3, and a plurality of program information display columns P4. Each program information display column P4 corresponds to one television program, but here, for convenience, all programs are shown as one-hour programs. Each program information display column P4 corresponding to this one television program is hereinafter referred to as a "cell".

Normally, a short television program takes about one minute, and a long television program lasts several hours. Therefore,
The one cell also exists for one minute to several hours.

In order to select a program, the user designates the number displayed in the channel number display field P1 displayed on the program table with an attached remote controller, or selects a desired program number on the program table. There are various methods such as clicking the channel to be input with an input device such as a keyboard or a mouse. These selection results are, for example, in the case of CS broadcasting,
The broadcast is transmitted to the CS broadcast tuner, where it is controlled to transmit the selected broadcast data to the television.

Thus, when the user selects a program, the channel number display section P1 and the program information display section P
4 is the minimum necessary information, but in addition to the channel number display column P1, a channel mark corresponding to the channel number display column P1 on a one-to-one basis so that a desired channel can be easily searched from a large number of channels. Display column P
2, and a channel name display column P3 are added.

That is, the channel number display column P1, the channel mark display column P2, and the channel name display column P3
It indicates the duplicate content, and at least the display column P1
If so, the user can finally select a channel.

Next, the operation of the program guide display system according to the embodiment of the present invention will be described in detail with reference to the flowchart of FIG.

When the display of the program guide is instructed by the user or automatically, the processing is started by the program guide display system.

First, program table data is read from the program table data storage device 110 into the computer 120 (step S101). As described above, the program guide data is obtained in advance from the Internet or TV broadcast data in the form of analog broadcast or digital broadcast, and is stored in the program guide data storage device 110.

Next, the output image size obtaining unit 121 obtains, as the output image size, for example, the size of the area on the monitor screen where the program guide display application displays the program (step S102). This can be obtained, for example, by reading the file if the size of the area to be reserved as the display area by the program guide display application is stored on the hard disk. When the size of the area is specified when the application is started and is held in the memory, the output image size obtaining unit 121 determines that the application is to notify the application of the area size. Issue a function call.

The area size is desirably expressed by the number of pixels (drawing dots), for example, 800
× 600 (800 pixels horizontally and 600 pixels vertically)
Pixel). Of course, this area size does not exceed the maximum number of pixels determined by an image output control unit (not shown) such as the program guide output device 130 and a video output board used for display.

The area size is not the size in which the display application itself is displayed, but the size of the area secured by the application for displaying the program guide. Therefore, this size does not include the menu portion of the application, the frame portion of the window, and the like.

For example, when the program guide uses a monitor connected to a personal computer, the area size may vary depending on the size of the monitor, the resolution of the monitor, the application, the method of use, and the like. Further, when the program guide is output to a television, it may be affected by the size and characteristics of the television (for example, whether or not it is a high-definition television).

Next, based on the size of each component of the predetermined program table and the size of the output image obtained by the output image size obtaining unit 121, the image configuration determining unit 122 The components included are determined (step 103). This processing will be described later in more detail with reference to FIG.

Thereafter, the image data generating section 123 generates an output image so as to display the components of the program guide determined by the image configuration determining section 122 (step S10).
4).

Finally, the generated output image is output to the program guide output device 130 (step S105). More specifically, this processing is realized by the display application receiving the generated output image and outputting the output image to the display area. However, such a display method is merely an example, and the generated output image can be output to the program guide output device 130 by various other known methods.

The functions of the output image size obtaining unit 121, the image configuration determining unit 122, and the image data generating unit 123 as described above can be executed in the display application.

Next, the processing of the image configuration determining unit 122 will be described in detail with reference to FIGS.

FIG. 4 is a detailed flowchart of the process in step S103 shown in FIG. FIG. 5 to FIG.
It is a display example of an electronic program guide.

In step S201, step S201 of FIG.
From the output image size acquired in step 102, DH which is the width of the output size of the program guide is extracted.

Next, based on the predetermined size of each component, first, it is determined whether or not all the components fit within the output image size. Here, the width of the channel number display column P1 is D1 and the channel mark display column P2 is set in advance.
Is D2, and the width of the channel name display column P3 is D.
3. It is assumed that the horizontal width of the program per hour in the program information display field P4 is set to D4.

In the program information, display for K hours is preferentially handled. In this case, the image configuration determining unit 122
First, it is determined whether or not all the components can be displayed by the following equation (step S202).

DH ≧ D1 + D2 + D3 + D4 × K. . . (Equation 1).

If the sum of the widths of the components does not exceed DH (step S202 (NO)), the process proceeds to step S206, where all components, that is, the channel number display column P1, the channel mark display column It is determined to output P2, a channel name display field P3, and a program information display field P4 for K hours. FIG. 5 shows a display example of the program guide output based on this determination. Here, K = 4. It is desirable that the display of the program information for K hours is started from the time when the user instructs the display of the program guide or the like. Furthermore, since Expression 1 is satisfied, the program information column P4 can be displayed for an arbitrary number of K = 4 or more (within the range of time held as program table data).

In step S202, when the total width of each component exceeds DH (step S202)
(YES)), the process proceeds to step S203.

In step S203, it is determined whether or not display is possible by excluding the channel name display column P3 from the constituent elements using the following equation.

DH ≧ D1 + D2 + D4 × K. . . (Equation 2).

If the sum of the widths of the components does not exceed DH (step S203 (NO)), the process proceeds to step S205, where the channel number display fields P1,
It is determined to output the channel mark display field P2 and the program information display field P4 for K hours.

FIG. 6 shows a display example of the program guide output based on this determination. Compared to the display example of FIG. 5, it can be seen that the channel name display column P3 is not displayed. Here, if D3> D4, there is a possibility that P4 that is longer than K hours will be displayed.

If step S203 is true, that is, even if the channel name display column P3 is deleted from the constituent elements,
If it exceeds DH, the process proceeds to step S204. In step S204, it is necessary to further reduce the number of components. Therefore, it is determined that the channel mark display column P2 is deleted, that is, the channel number display column P1 and the program information display column P4 for K hours are output. FIG. 7 shows a display example of the program guide output based on this determination. Here, as in the case of FIG. 6, when D3> D4, there is a possibility that P4 is displayed for more than K hours.

In this example, the channel name display column P3,
Although deletion is performed in the order of the channel mark display column P2, such priorities can be set in advance (for a predetermined file or the like) and can be freely changed thereafter by the user. .

Also, in this example, no consideration is given to the case where the DH is exceeded even if two components are deleted, but even in such a case, the following processing can be performed in any priority order. In addition, the display width can be effectively reduced without significantly reducing the information as the program guide and maintaining the listability of the program guide.

(1) Information in a cell is simplified. For example, the program information typically includes the title of the program, the contents of the program (including the title of the episode), and the performers, and by deleting at least one of them, the cell information is deleted. The display width can be reduced. Furthermore,
It is also possible to set a priority indicating which of these is deleted first.

(2) The font used to display the information in the cell is reduced, and the cell is reduced as a whole. However, it is preferable to set a lower limit that this processing cannot be further reduced in consideration of the characteristics of the display and the user.

(3) Number of program information repetitions K (number of hours)
To shrink. By reducing the number of repetitions K,
The entire program guide can be stored in the DH. Displaying K hours impairs the listing of the program guide, so reducing K is a matter to be selected as a last resort.

In this example, the process of adjusting the "length in the horizontal direction" of the program table to be within DH is shown on condition that K hours are displayed as the program information. Similar processing can be considered for the length in the vertical direction. However, in this case, omission of components,
There is no room to consider changing the number of repetitions K. Similarly to the case where the condition of K is set for the length in the horizontal direction, it is possible to set the minimum number of channels to be displayed for the length in the vertical direction.

Next, FIG. 8 shows an example of the configuration of a computer used in the program guide display system according to the embodiment of the present invention.

The computer 200 shown in FIG.
0, memory 220, external storage device 230, input device 24
0, an output device 250, a recording medium driving device 260, a network interface 270, and a bus 280 interconnecting these components 210 to 270.

The CPU 210 is used to control the processes of the output image size obtaining unit 121, the image configuration determining unit 122, and the image data generating unit 123. In addition, the program table data storage device 110 and the program table output device It controls the input and output of data to and from.

The memory 220 temporarily stores a program for controlling the above-described units and data used by the program, for example, image data in the editing stage, and program table data read from the program table data storage device 110. ,
Temporarily stored as needed.

The external storage device 230 is a storage device such as a hard disk for storing data necessary for the system of the present invention. The program guide data storage device 110 corresponds to such an external storage device 230.

The input device 240 is used by the user to select a cell displayed on the program guide or to select a channel, and includes a mouse, a keyboard, and the like.

The output device 250 is a program guide output device 130
In response to the above, the program table whose contents have been adjusted is output to the device 250 by the image data generation unit 123. Representative examples include a CRT display and a television monitor. When the computer body is a personal computer and the output device 250 is a television monitor, conversion processing to an NTSC signal, which is a signal input specification to a television, is usually required.

The recording medium drive 260 is a CD-RO
M, recording medium 29 such as floppy (registered trademark) disk
0 is read and copied to the memory 220 or the external storage device 230 as necessary. A program for executing each function of the program guide display system of the present invention is also stored in the recording medium 290, and the memory 2
20 is loaded. The computer 200 is controlled by a program loaded in the memory 220, and the CPU 210 executes various processes according to the instructions of the program, thereby realizing the program guide display system of the present invention.

The network interface 270 is
This is a device for connecting the computer 200 to a network 300 such as a LAN. When connected to a CS broadcast tuner, other suitable interfaces are used. Program guide data is received via these interfaces.

Here, the program guide display system 1 of the present invention
FIG. 8 shows an example in which the computer 200 is executed in the configuration of the computer 200 as shown in FIG. 200 can be combined.

[0084]

According to the program guide display system of the present invention, the size of an image to which an electronic program guide is to be output is detected, and the displayable components are automatically selected. Can be displayed preferentially.

Further, according to the program guide display system of the present invention, it is possible to make a difference in the degree of detail of information according to the image size while maintaining the listability.

[Brief description of the drawings]

FIG. 1 is a block diagram of an electronic program guide display system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of components of an electronic program guide.

FIG. 3 is a flowchart illustrating an overall operation of the electronic program guide display system according to the embodiment of the present invention.

FIG. 4 is a flowchart illustrating a process of an image configuration determination unit in detail.

FIG. 5 is a diagram showing an example of a program guide displayed by the electronic program guide display system in the embodiment of the present invention.

FIG. 6 is a diagram showing a display example of a program guide in which one of the constituent elements is deleted from the program guide of FIG. 5;

FIG. 7 is a diagram showing a display example of a program table in which one of the components is further deleted from the program table of FIG. 5;

FIG. 8 is a diagram illustrating a configuration example of a computer used in the electronic program guide display system according to the embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 program table display system 110 program table data storage device 120 computer 121 output image size acquisition unit 122 image configuration determination unit 123 image data generation unit 130 program table output device 200 computer 210 CPU 220 memory 230 external storage device 240 input device 250 output device 260 Recording medium drive 270 Network interface 280 Bus 290 Recording medium 300 Network

Claims (14)

[Claims] Storage means for storing an electronic program guide; display means for displaying the electronic program guide; detection means for detecting an image size when the electronic program guide is displayed on the display means; Editing means for editing the contents of the electronic program guide so that the display size of the electronic program guide is smaller than or equal to the image size when the display size of the electronic program guide is larger than the image size. Program guide display system. 2. The electronic program guide according to claim 1, wherein the electronic program guide has, for each broadcast channel, channel information for identifying a channel and program information for representing broadcast content in each time zone. A program guide display system for editing the contents of an electronic program guide so as to minimize loss of the channel information and program information. 3. The electronic program guide according to claim 2, wherein, in the electronic program guide, a program table related to one broadcast channel forms one row of the electronic program guide, and the electronic program guide corresponds to a plurality of broadcast channels. A program guide display system for displaying in a row, wherein the editing of the electronic program guide by the editing means reduces a horizontal size while maintaining the number of displayed rows. 4. The electronic program guide according to claim 1, wherein the electronic program guide has a plurality of display items for each broadcast channel, and the editing unit selects at least one of the display items, and the selected display item is selected. A program table display system, wherein the display size is adjusted by hiding the display. 5. The program guide display system according to claim 4, wherein the editing means selects the display item based on a priority set in advance for each display item. 6. The electronic program guide according to claim 1, wherein the electronic program guide has a plurality of display items for each broadcast channel, and the editing unit selects at least one of the display items, and the selected display item is selected. A program guide display system, characterized in that the size of the display item is reduced by hiding at least a part of the display content of (1), thereby adjusting the display size. 7. The program guide display system according to claim 6, wherein the editing means selects the display item based on a priority set in advance for each display item. 8. The program guide display system according to claim 6, wherein the editing means determines the non-displayed portion based on a priority set in advance for each portion of the display item. 9. A step of displaying an electronic program guide, a step of detecting an image size when the electronic program guide is displayed, and an electronic program guide when the display size of the electronic program guide is larger than the image size. Editing the contents of the electronic program guide so that the display size of the program guide is equal to or smaller than the image size. 10. The electronic program guide according to claim 9, wherein the electronic program guide has, for each broadcast channel, channel information for identifying a channel and program information for representing broadcast content in each time zone. And editing the contents of the electronic program guide so as to minimize the loss of the channel information and the program information. 11. The electronic program guide according to claim 9, wherein the electronic program guide has a plurality of display items for each broadcast channel, and the editing step includes at least one of the display items.
A program list editing method, wherein the display size is adjusted by selecting one of the display items and hiding the selected display item. 12. The program guide editing method according to claim 11, wherein in the editing step, the display item is selected based on a priority set in advance for each display item. 13. The electronic program guide according to claim 9, wherein the electronic program guide has a plurality of display items for each broadcast channel, and the editing step includes at least one of the display items.
Selecting one of the display items and hiding at least a part of the display content of the selected display item to reduce the size of the display item, thereby adjusting the display size. Editing method. 14. A computer, comprising: storage means for storing an electronic program guide; display means for displaying the electronic program guide; and detection for detecting an image size when the electronic program guide is displayed on the display means. Means for editing the contents of the electronic program guide so that the display size of the electronic program guide is smaller than or equal to the image size when the display size of the electronic program guide is larger than the image size. program.