JPH11308131A - Receiver for tetext broadcasting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability at the time of displaying a teletext program in the receiver of FM teletext broadcasting. SOLUTION: A display element 50 which can simultaneously display two pages in a taletext program is installed in the receiver of FM tetext broadcasting. At the time of displaying the menu of the teletext program in the display element 50, the menu is displayed in a one page unit and information on the item of the menu is displayed together with the menu. At the time of displaying the text of the teletext program on the display element 50, the text of the program is displayed in a two page unit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiver for teletext broadcasting.

[0002]

2. Description of the Related Art [Format] In FM broadcasting,
It is called “FM teletext multiplexing”, and it is realized that digital data such as text information is frequency-multiplexed and transmitted to an original audio broadcasting program.

[0003] This FM teletext broadcasting is called the DARC system, and the standard for multiplexing digital data such as text information is a subcarrier frequency: 76 kHz Transmission rate: 16 kbit / s Modulation system: LMSK error correction system : (272,190) This is a product code using a shortened difference set cyclic code.

[0004] The LMSK signal is frequency-multiplexed with an audio signal (monaural signal or stereo composite signal) of the original audio broadcast program, and the main carrier signal is FM-modulated by the frequency-multiplexed signal and transmitted. .

[0005] In addition, program services such as character information include:
There are levels 1, 2, and 3, all of which display character information and the like by dot display.
Then, the level 1 service includes 15.5
This service is for FM receivers that can display characters x 2.5 lines, and the information is characters. The level 2 service is a service for an FM receiver capable of displaying 15.5 characters × 8.5 lines including a header sentence, and information is characters and graphics. Level 3 is an FM receiver capable of displaying a detailed map on a CD-ROM or the like, that is, a traffic information service for a navigation system.

As the level 1 program service, news, weather forecast, traffic information, program information and the like are considered. In this case, when the original audio broadcast is a music program, the program information provides information that complements the original audio broadcast program, such as the song title, performer name, and telephone number at the time of the request. Is what you do.
In the case of the level 1 service, two lines are one page, and one page is a display unit, and one program is a maximum of 62 pages.

[0007] Further, programs can be classified into a menu and a program body guided by the menu (hereinafter referred to as "program body") when classified by function.
These menus and program texts are in a hierarchical format, for example, as shown in FIG. 9. A main menu is prepared at the highest level, and a lower submenu or a program text is prepared for each item of the main menu. Is done.

[0008] The depth of the hierarchy differs depending on the program. Also, since programs are hierarchized, when descending from the main menu to a lower hierarchy, the lowest hierarchy becomes the program text. Further, there is no other program text in the upper hierarchy of the program text, and no program text in the upper hierarchy of the submenu.

[Display Example] Display of a program on a teletext receiver can be performed as follows. That is, in the case of an FM receiver corresponding to level 1, as shown in FIG. 8A, a display element DSP such as an LCD is provided, and its display area is converted into a standard size full-width character.
15.5 characters x 2.5 lines (including spaces between characters and lines,
(248 horizontal dots x 68 vertical dots). However, in the display area, the upper 0.5 line area is a display area for a header sentence, and the lower 2 line area is a display area for a text.

When a predetermined key is pressed while the receiver is receiving a text multiplex broadcast, the first page of the main menu is displayed on the display element DSP as shown in FIG. The first item of the main menu is displayed in reverse video meaning a cursor (in FIG. 8, the reverse display is indicated by hatching for convenience of drawing. The same applies hereinafter).

When the next key KN is pressed, the cursor (inverted display) moves to the second item as shown in FIG. 8C, and when the next key KN is pressed, as shown in FIG. 8D, The second page of the main menu is displayed, and a cursor is displayed on the first line, that is, the third item of the main menu.

Thus, every time the next key KN is pressed once,
As the cursor advances one item at a time, the next key KN
Each time is pressed, the page of the main menu is changed to the next page. It should be noted that when the previous key KB is pressed, the state changes in the opposite manner as when the next key KN is pressed.

Then, for example, as shown in FIG.
When the enter key KE is pressed while the cursor is positioned on the item of "weather forecast", the program of "3. weather forecast" is selected. For example, as shown in FIG. A program one level lower than the "weather forecast", in this case, a first page of a submenu indicating a region is displayed, and a cursor is displayed at the first item. Also in this submenu, as shown in FIGS. 8F and 8G, the display changes in response to the operation of the next key KN and the previous key KB as in the case of the main menu.

Then, for example, as shown in FIG.
When the enter key KE is pressed while the cursor is displayed on the item "Kanagawa Weather", this "2. Kanagawa Weather" is selected. For example, as shown in FIG.
A program one level lower than “2. Weather in Kanagawa”, in this case, a program text indicating “Today's weather in Kanagawa” is displayed. Note that the cursor is not displayed when the program text is displayed.

At the same level as this “Kanagawa Today's Weather”, there is “Kanagawa Tomorrow Weather”. When the next key KN is pressed, as shown in FIG. 8I, the “Kanagawa Tomorrow Weather” is displayed. Weather ”is displayed. If you press the previous key KB when this "Tomorrow's weather in Kanagawa" is displayed,
As shown in FIG. 8H, "Today's weather in Kanagawa" is displayed.

In this way, the programs are prepared in a hierarchical manner with the main menu at the top, so that by sequentially following them, the desired program can be displayed.

[0017]

By the way, as described above, one program can have a maximum of 62 pages, but if a certain program has a program text of 30 pages, for example, the program text is In order to display all pages of, 29 key operations are required as shown in FIG. 7A. However, this requires a large number of key operations and is inconvenient.

The present invention is intended to solve such a problem and further to solve a problem newly generated in that case.

[0019]

Therefore, according to the present invention, a character multiplex broadcast in which data of a plurality of text programs are multiplexed into an original audio broadcast program signal and the multiplexed signal is broadcast is provided. A receiving circuit for receiving the multiplex teletext, a decoder circuit for extracting the text program data from the multiplexed signal received by the receiving circuit, and a text program based on the data extracted by the decoder circuit. And a display element having a display area large enough to simultaneously display two pages of the text program. When a menu of the text program is displayed, the menu is displayed in page units. At the same time, the information on the menu items is displayed on the display element together with the menu. When you view the body of the program,
This is a receiver for teletext broadcasting in which the body of the program is displayed in units of two pages. Therefore, the menu is displayed and switched in units of one page, and the reception status of the program is displayed. The program text is displayed and switched in units of two pages.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [Display Example] To facilitate understanding of the present invention, first, a display example of a text program in an FM receiver according to the present invention will be described.

In the present invention, as shown in FIG. 6, for example, the display element 50 has a display area of a size corresponding to two pages of a text program of level 1, that is, 15.5 characters × 4 lines (horizontal). 248 dots x 68 dots vertically).

Then, when the receiver presses the teletext key KC while receiving the text multiplex broadcast, as shown in FIG. 4A, the main line is displayed on the first and second lines of the display element 50. The first page of the menu is displayed, and the first item of the main menu is set as a cursor (inverted display). In addition, a partition line is displayed on the third line of the display element 50, and “FM data” indicating that the teletext is being received is displayed on the fourth line, and at this time the position of the cursor is displayed. The item “1. program information” is complementary information of the original audio broadcast program and is real-time data, and thus the characters “live” are displayed.

When the next key KN is pressed, the cursor moves to the second item, as shown in FIG. 4B, and the reception status of the program of the item where the cursor is located at this time is displayed on the display element 50. Is displayed on the fourth line, for example, "5 pages have been received / total 10 pages".

Further, when the next key KN is pressed, the second page of the main menu is displayed as shown in FIG. 4C, and the cursor is moved to the first line, that is, the third item of the main menu. Is displayed. At this time, the reception status of the program of the item where the cursor is located is displayed on the fourth line of the display element 50.

Thus, as shown in FIGS. 4A to 4C, each time the next key KN is pressed once, the cursor advances by one item, and each time the next key KN is pressed twice, the page of the main menu is changed. Change to the next page. Also,
At this time, the reception status of the program of the item where the cursor is located is displayed together. Note that the previous key K
When B is pressed, the display changes in the opposite manner as when the next key KN is pressed.

Then, for example, as shown in FIG.
When the cursor is displayed on the item of "weather forecast",
When the enter key KE is pressed, this "3. Weather forecast" program is selected. For example, as shown in FIG.
The program one level lower than the weather forecast, in this case 1
Since the lower level of the hierarchy is a submenu indicating a region, the first page of the submenu is displayed, and a cursor is displayed on the first item. In addition,
The reception status of the program of the item where the cursor is located is displayed on the display element 50.

In this submenu, FIG.
As shown in D to F, the display changes in response to the operation of the next key KN and the previous key KB as in the case of the main menu.

When the menu (main menu and submenu) is displayed, the next key K
When N or the previous key KB is pressed, the menu display is changed in units of one page (in units of two lines). The reception status of the program of the item where the cursor is located is also displayed.

Then, for example, as shown in FIG.
If the enter key KE is pressed while the cursor is positioned on the item "Kanagawa Weather", this "2. Kanagawa Weather" is selected. For example, as shown in FIG.
The program is one level lower than “2. Weather in Kanagawa”.
The pages, that is, "a message indicating the weather of Kanagawa today" and "a message indicating the weather of Kanagawa tomorrow" are displayed.

At this time, the cursor is not displayed because there is no lower hierarchy. Also, if there is another program body on the same level as this program body,
For example, as shown in FIG. 7B, when the next key KN is pressed, the program text is displayed and switched in units of two pages.

Thus, when a menu (main menu or submenu) is displayed on the display element 50, one page of the menu is displayed, and the next key KN is displayed.
Alternatively, when the previous key KB is operated, the cursor moves one item at a time and the menu is switched by one page. Further, at this time, information such as the reception status of the program of the item where the cursor is located is displayed.

When the program text is displayed on the display element 50, two pages (ie, 4 pages) of the program text are displayed.
Line) is displayed at the same time, and next key KN or previous key KB
Is operated, the pages are switched in units of two pages.

In the receiver described below,
For example, as shown in FIG.
This is a case where a display mode for displaying and switching in page units is also provided. That is, in this display mode, FIGS.
As shown in C, when the menu is displayed, the menu is displayed in units of one page, and the reception status and the like are also displayed. Further, as shown in FIGS. 5D and 5E, when the program text is displayed, the program text is displayed in units of one page, and the reception status and the like are also displayed.

In the following description, as shown in FIG. 4G, a display mode in which the program text is displayed and switched in units of two pages is called a “four-line mode”, and as shown in FIGS. Is referred to as a “two-line mode” in which the display mode is switched and displayed in units of one page.

[Construction of Receiver] FIG. 1 shows an embodiment in which the present invention is applied to an FM receiver having a service level of 1, and reference numeral 10 denotes a receiving circuit for FM teletext broadcasting. Then, the FM signal received by the antenna 11 is supplied to a tuner circuit 12 of a PLL synthesizer system to select a broadcast station of a target frequency, and the FM signal is converted into an intermediate frequency signal. The frequency signal is supplied to an FM demodulation circuit 14 through an intermediate frequency circuit 13 having an intermediate frequency filter and an amplifier.

From the demodulation circuit 14, a frequency multiplexed signal of an audio signal (a monaural signal or a stereo composite signal) and the above-described LMSK signal in the FM text multiplex broadcasting is taken out. An audio signal is supplied to a speaker 16 through an amplifier 15. Further, the frequency multiplexed signal from the demodulation circuit 14 is supplied to the decoder circuit 18 and the LMS
The character program data is decoded and error-corrected from the K signal and extracted.

Further, the FM receiver is provided with a microcomputer 20 for executing channel selection in the tuner circuit 12, display of a text program by FM text multiplex broadcasting, and the like.

The microcomputer 20 includes a CPU 21 for executing a program, a ROM 22 for the program, a RAM 23 for a data area and a work area, and a RAM 24 for a reception buffer for FM text multiplex broadcast data. Have. And the memory 22-
Reference numeral 24 is connected to the CPU 21 through a system bus 29.

In this case, various programs are prepared in the ROM 22 and, for example, as shown in FIGS.
The display routine 100 shown in FIG. Although the details of the routine 100 will be described later, FIGS. 2 and 3 only show portions related to the present invention.

Further, the bus 29 has ports 25 and 26
And an interface circuit 27 are connected. Then, data for tuning is supplied from the CPU 21 to the tuner circuit 12 through the port 25, and the tuning is performed. Further, the data of the character program decoded by the decoder circuit 18 is transmitted through the port 26 to the RA for the reception buffer.
It is stored or stored in M24.

The interface circuit 27 is connected to operation keys K1 to Kn for channel selection keys and operation keys KC and KC for selecting and displaying character programs.
KM, KN, KB, K24 and KE are connected. The keys K1 to KN and KC to KE are constituted by non-locking type push switches. When any one of the keys KC to KE is pressed, the routine 100 is executed.

Further, a font ROM (character generator) 31 for converting character data transmitted by FM character multiplex broadcasting into display data is provided on a bus 29.
Is connected, and the display controller 32
Is connected. The controller 32 is connected to a display memory 33 and, for example, an LCD 50 as a display element.

In this case, the LCD 50 is of a full dot matrix system for displaying characters and the like by combining dots. For example, as shown in FIG. 6, the display area has a size corresponding to two pages of a level 1 text program. That is, it has a size of 15.5 characters × 4 lines (248 horizontal dots × 68 vertical dots).

Further, the memory 33 is of a bitmap type corresponding to the dot matrix type of the LCD 50, and has a capacity for one screen of the LCD 50. Then, the character codes stored in the reception buffer RAM 24 (or the character codes prepared in advance in the ROM 22) are sequentially read out by the CPU 21, and the read out character codes use the font data in the ROM 31. The display data is converted into display data, and the display data is written to the memory 33 through the controller 32.

At this time, the display data in the memory 33 is repeatedly read out by the controller 32, converted into a display signal, and supplied to the LCD 50. Therefore, the LCD 50 has the CPU 21
24 or a character according to the character code read from the ROM 22 is displayed.

[Processing for Tuning] The processing of presetting a broadcasting station and selecting a preset broadcasting station is realized in the same manner as a general PLL synthesizer type receiver in accordance with the operation of keys K1 to Kn. Is done.

[When a key is input] When any key Ki among the keys KC to KE for the text program is pressed,
The processing of the CPU 21 starts from step 101 of the routine 100, and then in step 102, the RAM 2
4 is checked to determine whether a text program is being received. If not, the process proceeds from step 102 to step 104,
This routine 100 ends.

However, when a text program is being received, the process proceeds from step 102 to step 103,
In step 103, the key Ki that triggered the start of the processing of the routine 100 is the key KC
.. KE is determined. Then, the following processing is executed in accordance with the trigger key Ki, and each display is realized. Hereinafter, the case where the display mode is the four-line mode will be described first, and then the case where the display mode is the two-line mode will be described.

[Display of Main Menu (in Four-Line Mode)] If the key Ki that triggered the start of the routine 100 is the teletext key KC, the process proceeds from step 103 to step 111. By this step 111, the main menu of the data in the RAM 24, that is, the menu of the highest hierarchy is selected, and then the process proceeds to step 114.

In this step 114, it is determined whether the display mode is set to the two-line mode or the four-line mode. In this case, the display mode is set to the four-line mode. From step 114, the process proceeds to step 115, where the menu of the currently selected hierarchy is displayed in the 4-line mode. In this case, the main menu is selected,
This main menu is displayed, for example, as shown in FIG. 4A. Then, thereafter, the process proceeds to step 104,
This routine 100 ends.

Thus, when a teletext is being received,
When the teletext key KC is pressed, the main menu is first displayed in, for example, a four-line mode according to the display mode at that time.

When the next key KN or the previous key KB is pressed while the main menu is being displayed, this is determined in step 103, and the process proceeds to step 10.
From 3, the process proceeds to step 121, where it is determined whether a menu is displayed. In this case, since the main menu is displayed, the process proceeds from step 121 to step 122. In this step 122, the display position of the cursor is advanced by one item (for the next key KN) or one item. Data processing is performed to return the display (when the previous key KB is displayed). At this time, if it is necessary to change the page by moving the cursor, processing for that is also executed.

Then, the process proceeds to step 114, and further proceeds to step 115. Therefore, at this time, the menu display is changed according to the data changed in step 122. If the next key KN is pressed from the state of FIG. 4A, the display of the main menu is changed as shown in FIG. 4B. And then
The process proceeds to step 104, and this routine 100 ends.

Therefore, when the next key KN is pressed while the main menu is displayed on the LCD 50, the next menu shown in FIGS.
As shown in C, the cursor is moved one item at a time, and the menu is switched by one page. Further, at this time, status information such as the reception status of the program of the item where the cursor is located is displayed.

[Display of Submenu (in the case of 4-line mode)] For example, as shown in FIG. 4C, when the main menu is displayed and the cursor is displayed in the item of “3. When the enter key KE is pressed, this is discriminated in step 103, and the process proceeds to step 10.
3 proceeds to step 131, in which it is determined whether a menu is displayed. In this case, since the main menu is displayed, the process proceeds from step 131 to step 132. In this step 132, the program (sub) of the item where the cursor was positioned when the enter key KE was pressed is pressed. Menu or program text) is selected. In our case,
The submenu “3. Weather forecast” is selected.

Subsequently, the process proceeds to step 133, where it is determined whether the program selected in step 132 is a submenu or a program text. In this case, the submenu of "3. Weather forecast" is selected. Therefore, the process proceeds from step 133 to step 114, and further proceeds to step 115.

Therefore, at this time, the submenu selected in step 132 is displayed on LCD 50. In this case, since the enter key KE has been pressed from the state of FIG. 4C, a submenu of "3. Weather forecast" is displayed in the same manner as the main menu as shown in FIG. 4D. Therefore, while the submenu displays one page,
The reception status of the program of the item where the cursor is located is displayed on the fourth line. Then, the process proceeds to step 104, and this routine 100 ends.

Therefore, when the enter key KE is pressed while the main menu is displayed on the LCD 50, the program of the item with the cursor displayed at that time is selected, and if the selected program is a submenu, The sub menu is displayed like the main menu.

When the next key KN or the previous key KB is pressed while the sub-menu is displayed, this is determined in step 103, and thereafter, the processing is performed in the same manner as when the main menu is displayed. 103
→ Step 121 → Step 122 → Step 114 →
The processing is performed in the order of step 115, and the display of the submenu is changed in the same manner as in the case of the main menu, for example, as shown in FIGS. 4D to 4F.

Therefore, when a menu (main menu or submenu) is displayed, key KN
, KB and the decision key KE, it is possible to descend to a lower hierarchy.

[Display of program text (in case of 4-line mode)]
For example, as shown in FIG. 4E, when the sub-menu is displayed and the cursor is displayed on the item "2. Weather in Kanagawa", when the enter key KE is pressed, this is determined in step 103, and the main menu is determined. In the same manner as when the enter key KE is pressed when the menu is displayed, the process proceeds from step 103 to step 132 through step 131. In this step 132, when the enter key KE is pressed, the cursor is positioned. Is selected. In this case, the program text "2. Weather in Kanagawa" is selected.

Subsequently, the process proceeds to step 133. In this case, since the program selected in step 132 is the program text, the process proceeds from step 133 to step 134. Then, at step 134, it is determined whether the display mode is set to the two-line mode or the four-line mode. In this case, the display mode is set to the four-line mode. 135
In this step 135, the program text of the currently selected hierarchy is displayed in the 4-line mode. In this case, since the program text "2. Weather in Kanagawa" has been selected, this program text is displayed, for example, as shown in FIG. 4G. Then, thereafter, the process proceeds to step 104,
This routine 100 ends.

When the submenu one level higher than the program text is displayed, the cursor is moved to the item corresponding to the program text and the enter key KE is pressed to display the program text at that time. For example, it is displayed in a four-line mode according to the mode.

When the next key KN or the previous key KB is pressed while the program text is being displayed as described above, this is determined in step 103, and the process proceeds to step 1.
From step 03, the process proceeds to step 121. In this case, since the program text is displayed, the process proceeds from step 121 to step 124. In this step 124, the display mode is set to the two-line mode or the four-line mode. Is set.

In this case, since the four-line mode has been set, the processing proceeds from step 124 to step 125.
In this step 125, the next two pages (when using the next key KN) or the previous two pages (when using the previous key KB) of the currently selected program body are selected.
In this case, when there is no corresponding page, for example, the two pages displayed at this time are selected. Further, when two pages are not prepared, a dummy page, for example, a page written with “x” is prepared instead of the unobtainable page.

Then, the process proceeds to step 135. Therefore, the next two pages or the previous two pages selected in step 125 are displayed on LCD 50. Then, the process proceeds to step 104, and this routine 100 ends.

Therefore, when the next key KN or the previous key KB is pressed while the program text is displayed in the four-line mode, the program text is sequentially switched and displayed in units of two pages as shown in FIG. 7B, for example. Will be done.

If the enter key KE is pressed while the program text is displayed, the processing proceeds to step 103.
The process proceeds from step 131 to step 104, and the pressing of the enter key KE is ignored.

[Move to upper menu (in the case of 4-line mode)] For example, as shown in FIGS. 4D to 4G, when the menu key KM is pressed while the submenu or the program text is displayed, the processing is performed in steps. 103 to step 14
Then, in step 141, it is determined whether or not the main menu is displayed on the LCD 50.

When contents other than the main menu (submenu or program text) are displayed, the process proceeds from step 141 to step 142,
In this step 142, the first page in the hierarchy one level higher is selected. In this case, as described with reference to FIG. 9, in a layer other than the main menu, the higher layer is a submenu or a main menu. ) Is selected.

Then, the process proceeds to step 114. In this case, since the mode is the four-line mode, the menu one level higher than the one selected in step 142 in step 115 is displayed in the four-line mode. 10
4 ends.

Therefore, as shown in FIG. 4, for example, when a menu key KM is pressed while a sub-menu or a program text is displayed, the first page of the higher-level menu is displayed by one level each time the menu key KM is pressed. Go.

When the main menu is displayed in step 141, there is no higher hierarchy than the main menu, so the process proceeds from step 141 to step 104, and this routine 100 ends.
Therefore, even if the menu key KM is pressed while the main menu is displayed, this is ignored.

[Display of the main menu (in the case of the two-line mode)] When the teletext key Kc is pressed, the process proceeds from the step 103 to the step 114 through the step 111. In this case, the mode is set to the two-line mode. Therefore, the process proceeds from step 114 to step 116, in which the menu of the currently selected hierarchy is displayed in the two-line mode. In this case, since the main menu has been selected, this main menu is displayed, for example, as shown in FIG. 5A. Then, the process proceeds to step 104, and this routine 100 ends.

Thus, when a teletext is being received,
When the teletext key KC is pressed, the main menu is first displayed in, for example, a two-line mode according to the display mode at that time.

When the next key KN or the previous key KB is pressed while the main menu is displayed, the processing proceeds from step 103 to step 121 through step 1.
The process proceeds to step 22, and further proceeds to step 116 through step 114. Therefore, at this time, step 122
The display of the menu is changed according to the changed data. If the next key KN is pressed from the state of FIG. 5A, the display of the main menu is changed as shown in FIG. 5B. Then, the process proceeds to step 104, and this routine 100 ends.

Therefore, when the next key KN is pressed while the main menu is displayed on the LCD 50, the cursor moves one item at a time and the menu is switched by one page. Further, at this time, status information such as the reception status of the program of the item where the cursor is located is displayed.

[Display of submenu (in the case of two-line mode)] When the enter key KE is pressed while the main menu is displayed and the cursor is displayed at the item "3. Weather forecast", for example. This is determined in step 103, and the process proceeds from step 103 to step 133 through steps 131 and 132, and further proceeds to step 116 from step 133 through step 114.

Therefore, at this time, the submenu selected in step 132 is displayed on LCD 50. In this case, for example, as shown in FIG. 5C, a submenu of “3. Weather forecast” is displayed in a two-line mode as in the main menu. That is, when the enter key KE is pressed while the main menu is displayed on the LCD 50, the program of the item displayed by the cursor at that time is selected. If the selected program is a submenu, the submenu is displayed. Are displayed in the two-line mode as in the main menu.

When the next key KN or the previous key KB is pressed while the sub-menu is displayed, this is determined in step 103, and thereafter, the processing is performed in the same manner as when the main menu is displayed. 103
→ Step 121 → Step 122 → Step 114 →
The steps are executed in the order of step 116, and the display of the submenu is changed in the same manner as in the case of the main menu.

Therefore, when a menu (main menu or submenu) is displayed, key KN
, KB and the decision key KE, it is possible to descend to a lower hierarchy.

[Display of Program Text (in Two-Line Mode)]
For example, as shown in FIG. 5C, when the sub-menu is displayed and the cursor is displayed on the item "2. Weather in Kanagawa", when the enter key KE is pressed, this is determined in step 103, Processing is step 10
3 to step 132 through step 131,
Further, the process proceeds to step 134 through step 133. When the display mode is set to the two-line mode in step 134, the process proceeds from step 134 to step 136,
At 6, the program text of the currently selected hierarchy is displayed in a two-line mode. In this case, "2. Weather in Kanagawa"
Is selected, the program text is displayed, for example, as shown in FIG. 5D. Then, the process proceeds to step 104, and this routine 100 ends.

When the submenu one level higher than the program text is displayed, moving the cursor to the item corresponding to the program text and pressing the enter key KE causes the program text to be displayed in the two-line mode. Is displayed.

When the next key KN or the previous key KB is pressed while the program text is being displayed as described above, this is discriminated in step 103, and the process proceeds to step 1.
From step 03, the process proceeds to step 124 through step 121. In this case, since the two-line mode is set, the process proceeds from step 124 to step 126. And
In this step 126, the next page (for the next key KN) or the previous page (for the previous key KB) of the currently selected program body is selected. At this time, if there is no corresponding page, for example, the page displayed at this time is selected.

Then, the process proceeds to step 136. Therefore, the next page or the previous page selected in step 126 is displayed on LCD 50. Then, the process proceeds to step 104, and this routine 100 ends.

Accordingly, when the next key KN or the previous key KB is pressed when the program text is displayed in the two-line mode, the program text is displayed as shown in FIGS.
The pages are sequentially switched and displayed in page units.

[Move to upper menu (in the case of two-line mode)] This is the same as [move to the upper menu (in the case of four-line mode)], and a description thereof will be omitted.

[Switching of Display Mode] This is a case where the display mode is switched between the four-line mode and the two-line mode. In an arbitrary display state, the two-line / 4-line key K24 is used.
Is pressed, this is discriminated in step 103, and the process proceeds from step 103 to step 151. In this step 151, if the previous display mode is the 4-line mode, the display mode is changed to the 2-line mode, and the previous display mode is changed. In the two-line mode, the mode is changed to the four-line mode. Such a change of the display mode can be realized by inverting the flag indicating the display mode.

Subsequently, the process proceeds to step 133, and if a menu is displayed at this time, the process proceeds to step 1
The process proceeds from step 33 to step 114, and if the program text is displayed, the process proceeds from step 133 to step. Then, from steps 114 and 134, steps 115, 135 or 11 are performed according to the display mode.
Go to 6, 136.

Therefore, when the two-line / four-line key K24 is depressed, the display mode becomes the two-line mode when the display mode is the four-line mode and the four-line mode when the display mode is the two-line mode. .

[Summary] As described above, according to the receiver of FIG. 1, a text program can be displayed. In this case, when the display mode is the four-line mode, for example, FIG.
As shown in FIG. 7G, the program body is displayed and switched in units of two pages. For example, even if a certain program has a program body of 30 pages, as shown in FIG. All program bodies can be displayed. That is, as shown in FIG. 6D, FIG. 6E, or FIG. 7A, all the program texts can be displayed by half the key operation as compared with the case where the program texts are displayed in units of one page.

When the menu is displayed and switched in units of two pages, the reception status of the header statement and the item (program) at the cursor position, for example, the total number of pages, the reception number, depends on the size of the display area of the LCD 50. It will not be possible to display the number of pages that have been created. However, in the above-described receiver, when the menu is displayed, the display is equivalent to the two-line mode, that is, for example, FIGS.
As shown in FIG. 4, the menu is displayed in units of one page, and the empty line (the fourth line in FIGS. 4A to 4F) includes the total number of pages for the header statement and the item at the cursor position.
The number of received pages is displayed. Therefore, it is possible to confirm the total number of pages, the number of received pages, and the like for a program to be selected and displayed from now on, which is convenient.

Further, for example, as shown in FIGS.
Since the program body can be displayed in the two-line mode, the usability is good in this respect as well.

[Others] In the above description, as the reception status, the total number of pages and the number of successfully received pages are displayed by characters, but they may be displayed by figures, graphs, or the like. Also, unread / read information can be displayed. Further, in the above description, the display form of the menu is 4
Although different between the row mode and the two-row mode, they can be the same.

[0095]

According to the present invention, since the program text is displayed in units of two pages, it is possible to display all the program text by half the key operation as compared with the case where the program text is displayed in units of one page. it can.

The menu is displayed in units of one page, and a header statement and the reception status of a program to be selected and displayed from now on are displayed. For this program, the total number of pages, the number of received pages, and the like are displayed. It is possible to check the reception status of the device and it is convenient. Furthermore, since the program body can be displayed in the two-line mode according to the user's preference, the usability is good in this respect as well.

[Brief description of the drawings]

FIG. 1 is a system diagram illustrating one embodiment of the present invention.

FIG. 2 is a flowchart showing a part of one embodiment of the present invention.

FIG. 3 is a flowchart showing a continuation of FIG. 2;

FIG. 4 is a diagram for explaining the present invention.

FIG. 5 is a diagram for explaining the present invention.

FIG. 6 is a diagram for explaining the present invention.

FIG. 7 is a diagram for explaining the present invention.

FIG. 8 is a diagram for explaining the present invention.

FIG. 9 is a diagram for explaining the present invention.

[Explanation of symbols]

10 FM receiver circuit, 11 antenna, 12 tuner circuit, 13 intermediate frequency circuit, 14 FM demodulation circuit, 15
... Amplifier, 16 ... Speaker, 18 ... Decoder circuit, 20
... microcomputer, 21 ... CPU, 22 ... ROM
(For program), 23 ... RAM (for work area),
24 ... RAM (for receiving buffer), 25 ... output port,
26 input port, 27 interface circuit, 29
... System bus, 31 ROM (character generator), 32 display controller, 33 memory (for display), 50 LCD, 100 display routine, K
1 to KN, KC to KE ... operation keys

Claims (2)

[Claims] 1. A receiver for multiplexing data of a plurality of teletext programs into a signal of an original audio broadcast program and receiving the teletext multiplex broadcast in which the multiplex signal is broadcast. A receiving circuit for extracting the data of the text program from the multiplexed signal received by the receiving circuit; and a display element for displaying the text program based on the data taken out by the decoder circuit. The element has a display area large enough to simultaneously display two pages of the text program. When a menu of the text program is displayed, the menu is displayed on the display element in one page unit, and the menu of the menu is displayed. When the information about the item is displayed on the display element together with the menu, and the text of the text program is displayed, the program Receiver for text multiplex broadcasting that displays the body of the text in units of two pages. 2. The text multiplex broadcast receiver according to claim 1, further comprising means for changing a display mode, wherein when the display mode is changed, the text of the text program is also displayed in page units. And a text multiplex broadcasting receiver for displaying information related to the displayed page together with the text.