JPH05110999A - Broadcast receiver - Google Patents

Abstract

PURPOSE:To provide a broadcast receiver where required contents are easy to see and a main picture can be seen by extracting only designated contents from contents of repeatedly broadcasted programs having specific contents like character broadcast and displaying them in a specific part of the main picture. CONSTITUTION:When a power source is turned on and the main picture mode is set (steps P1 and P2), a designated program of a designated channel is received (step P4), and data of one page is stored in a buffer (step P5). A retrieval character string is retrieved from this reception data (steps P6 and P7); and if the retrieval character string is found, character information is read out based on display character position data indicating the position of extracted information (steps P8 and P9). After character information is read out, it is converted to a mark and is displayed out in a prescribed position of the main picture in the case of mark display (steps P10 to P12), but it is displayed there as characters as they are in the other case (step S15).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a broadcast receiving apparatus, and more specifically, it extracts specific information to be known from broadcast radio waves and displays it on a predetermined portion of a main screen so that necessary information can be easily provided together with the main screen. The present invention relates to an available broadcast receiving device.

[0002]

2. Description of the Related Art A broadcast receiving apparatus, particularly a broadcast receiving apparatus capable of receiving broadcast radio waves for repeatedly broadcasting a program of a specific type such as a teletext, exclusively receives only the teletext. Some of them are capable of receiving teletext and the like, and some of which are capable of receiving such a broadcast that a program of a specific type of content such as the teletext is repeatedly broadcast. In a broadcast receiving device capable of receiving not only ordinary television broadcasts but also programs such as text broadcasts, conventionally, when trying to view text broadcasts while watching a normal broadcast program, All screens of the broadcast receiving device are switched to the teletext screen to display teletext, etc. However, when receiving a teletext or the like, if the entire screen is switched to the display of the teletext or the like, it is inconvenient because a normal broadcast program cannot be seen. Therefore, conventionally, a device has been devised in which a small window screen is provided on a normal broadcast screen and all the one screen information (information for one page) of a character broadcast is displayed on this small window screen. By providing such a small window screen, it is possible for a viewer to obtain necessary information by viewing a character broadcast or the like on the small window screen while watching a normal broadcast program desired by the viewer.

[0003]

However, such a conventional broadcast receiving apparatus, in particular, a broadcast receiving apparatus capable of receiving a broadcast radio wave for repeatedly broadcasting a program of a specific type of content such as a character broadcast is provided. If you try to watch teletext while watching regular broadcast programs, set a small window screen and display all contents of one page such as teletext on this small window screen. It was necessary to find the information I needed from a small window that displays all the contents of one page, so I couldn't find the information I needed quickly. Because all the contents of the minute are displayed, the small window screen becomes larger by that amount, or the contents such as teletext displayed on the small window screen become detailed, making it difficult to see the normal screen or displaying on the small window screen. The contents of the character broadcast or the like to be shown there was a problem that it becomes difficult to see. Therefore, the present invention extracts only a specific portion of the broadcast content of the broadcast content of a broadcast program that repeatedly broadcasts a program of a specific type such as a character broadcast, and extracts the extracted broadcast content on a screen. By displaying it at a position, the screen portion of the screen of the broadcast receiving device that displays information such as teletext is made as small as possible to make it easier to see the content displayed on the main screen other than the screen that displays information such as teletext. At the same time, the purpose is to display necessary information such as teletext in an easy-to-understand and easy-to-see state.

[0004]

The invention according to claim 1 is
At least a receiving unit capable of receiving a broadcast radio wave that repeatedly broadcasts a program having a specific content for a predetermined time, a tuning unit that extracts a broadcast signal from the broadcast radio wave received by the receiving unit in synchronization with the predetermined radio wave, and the tuning unit. Signal processing means for processing the broadcast signal selected in step 1 to a state capable of outputting, and a specific portion from the processed signal of the program for repeatedly broadcasting a program of specific content for a predetermined time among the processed signals output by the signal processing means. Signal extraction means for extracting the information of the above, an extraction designation means for designating a specific portion of the processed signal to be extracted by the signal extraction means, a processed signal by the signal processing means, and a specific portion extracted by the signal extraction means. Display output means for displaying and outputting information or predetermined information set in advance, and information indicating a specific portion extracted by the extracting means while displaying other information. And display control means for displaying output to a predetermined portion of the 示出 force means, and a. Further, as described in claim 2, for example, the receiving means can receive a teletext, and the signal processing means performs signal processing of a teletext signal from a broadcast signal of the teletext to extract the signal. The means extracts character information of a specific portion of the teletext signal,
The display control means causes the character information of the specific portion of the character broadcast to be output by displaying the character information of the specific portion extracted by the signal extracting means on a predetermined portion of another broadcast or the display output means displaying the predetermined information. Further, as described in claim 3, for example, an information converting means for converting the information of the specific portion extracted by the signal extracting means into a mark or the like preset according to the content of the information of the extracted specific portion. The display control means causes the marks and the like converted by the information converting means to be displayed and output to a predetermined portion of the display output means.
Further, as described in claim 4, for example, an information change notifying means is provided, the change of the information content of the specific portion extracted by the signal extracting means is monitored, and when the content of the information of the specific portion changes, Notify that it has changed by a predetermined method.

[0005]

According to the first aspect of the present invention, the receiving unit receives the broadcast radio wave, and the receiving unit can receive the broadcast radio wave which repeatedly broadcasts at least a specific program such as a character broadcast for a predetermined time. The broadcast signal is extracted from the broadcast radio wave received by the receiving means by the tuning means in synchronization with a predetermined radio wave, and the broadcast signal selected by the tuning means is processed by the signal processing means so as to be output. The processed signal processed by the signal processing means is displayed and output to the output means. Further, of the broadcast signal processed by the signal processing means (for example, a character broadcasting signal), the information of the specific portion designated by the extraction designating means is extracted by the signal extracting means, and the information of the specific portion extracted by the signal extracting means is extracted. The display control means designates a predetermined portion of the output means and outputs it. Therefore, only the necessary information is extracted from the broadcast signal in which the program of the specific content is repeatedly broadcast for a predetermined time, and other programs etc. and preset information (for example, time information) are displayed on the screen and extracted. The displayed information can be displayed and output to a specific portion of the screen at the same time. As a result, it is possible to display specific required information in an easy-to-see state while viewing other programs or preset information, and to accurately grasp changes in the specific information content. Also,
The information of the specific portion extracted by the signal extraction means is converted by the information converting means into a mark or the like preset according to the content of the information of the extracted specific portion, and the converted mark or the like is displayed and output to the specific portion of the screen. Let Therefore, it is possible to display the information of the specific content more easily,
The specific information can be grasped more accurately. Further, when the information change notifying means changes the content of the information of the specific portion extracted by the signal extracting means, it can be notified of that fact, so that the change in the information of the specific content can be more surely grasped. ..

[0006]

EXAMPLES The present invention will be specifically described below based on examples. 1 to 9 are diagrams showing an embodiment of a broadcast receiving apparatus according to the present invention. FIG. 1 is a block diagram of a broadcast receiving apparatus 1 according to an embodiment of the present invention.
Antenna 2, tuner 3, VIF 4, microprocessor 5, error detector 6, text VRAM 7, CG
8, a display controller 9, a display unit 10, a CPU 11, a memory 12, a keyboard 13, an original signal generator 14, a frequency dividing circuit 15, a power supply device 16 and the like. The broadcast receiving apparatus 1 is capable of receiving at least broadcast radio waves for repeatedly executing a program of specific content such as a text broadcast.

The power supply device 16 converts an external power supply or a power supply from a battery (not shown) into a predetermined voltage and supplies it to each part of the teletext receiver 1. In this power supply device 16,
The control signal from the CPU 11 is input, and the power supply device 16
Starts and stops the power supply according to this control signal.

The broadcast receiving apparatus 1 receives broadcast radio waves by its antenna (reception means) 2, and the broadcast radio waves received by the antenna 2 are sent to the tuner 3. The tuner (tuning means) 3 is a so-called electronic tuner composed of a coil, a capacitor, a resistor, etc., and operates under the control of the CPU 13. The tuner 3 tunes to a radio wave of a frequency designated by the CPU 13, extracts a signal of that frequency,
Output to VIF4.

The VIF 4 is composed of a demodulation circuit, a detection circuit, etc., demodulates and detects a signal input from the tuner 3, and extracts a video signal portion from the signal.

The microprocessor 5 comprises an A / D converter, a buffer, a decoder, etc., and the microprocessor 5 converts the analog video signal input from the VIF 4 into a digital signal by the A / D converter. And store it in the buffer. Further, the microprocessor 5 decodes the input signal by the decoder and converts it into character data.

The digital signals stored in the buffer of the microprocessor 5 are sequentially taken out and output to the error detector 6, which detects the number of errors in the error signal and outputs the detected error number to the microprocessor. Output to the processor 5 and the CPU 11.

The text VRAM 7 stores the display position on the display screen, the size and the character code under the control of the CPU 11.

The CG 8 stores a display dot pattern corresponding to a size and a code. When the size and the code are input from the text VRAM 7, the CG 8 outputs the display dot pattern to the display controller 9.

The display controller 9 is composed of an input sequence counter and a display position control circuit, and generates a position signal and a display signal so as to sequentially display the dot pattern row input from the CG 8 from the upper left to the lower right of the display screen. And outputs it to the display unit 10. Therefore, the VIF 4, the microprocessor 5, the text VRAM 7, the CG 8 and the display controller 9 function as signal processing means for processing the selected broadcast signal in a state in which it can be output.

The display unit (display output means) 10 is a Y-CT.
R21, X-CTR22 and LCD (Liquid Crystal D
isplay: liquid crystal display device) 23, LCD 23
Are driven by drive signals from the Y-CTR 21 and the X-CTR 22. Y-CTR21 and X-CTR22
Outputs to the LCD 23 a drive signal for controlling ON / OFF designated for each coordinate of the LCD 23 based on the position signal and the display signal input from the display controller 9. The LCD 23 has display pixels arranged in a dot matrix, and is turned on (for example, black display) or turned off (transparent display) by a drive signal from the Y-CTR 21 and the X-CTR 22.

The CPU 11 is a microprocessor, R
It is composed of an OM, a RAM, and the like, and the ROM stores programs as the broadcast receiving apparatus 1, selectable channel numbers, frequencies corresponding to the channel numbers, and the like. The RAM is used as a data storage and a work memory. As shown in FIG. 2, the RAM has a channel storage area, a program number storage area, a search character storage area, a display character position storage area, a condition storage area, and a clock. A data storage area and the like are formed. In this channel storage area, a character broadcasting channel to be displayed in a character data display area of a clock display screen (main screen) described later is stored,
Similarly, in the program number storage area, the program N of the character broadcasting channel to be displayed in the character data display area of the clock display screen is displayed.
Remember o. In the search character storage area, a search character string for searching for specific information to be displayed among the contents of the program is stored, and in the display character position storage area,
Data (character position information) indicating which information of the teletext to be extracted as the specific information is stored, for example, as address data of the extracted data. For example, as shown in FIG. 3, when the text broadcast is a weather forecast, "Tokyo" as the area is specified as the search character string, and "weather" is specified as the character information. Further, in the condition storage area, when converting the content of the teletext to be displayed after being converted into a mark or the like, the condition of which mark or the like is displayed when the content of the teletext is displayed is stored. When displaying the content of this teletext with a mark or the like, the data such as the mark is the CPU 1
It is registered in advance in the ROM No. 1 and, for example, in the case of a weather forecast, as shown in FIG. 4, marks and the like corresponding to fine, cloudy and sometimes fine, rain, etc. are stored. Which mark or the like of each of these marks or the like is selected and displayed is selected from the content of the text broadcast, for example, the probability of precipitation, and the selection condition, for example, if the probability of precipitation is 10% or less, the clear mark, If the probability is between 10% and 30%, it will be cloudy and sometimes a clear mark, precipitation probability 3
If it is 0% or more, the numerical value (percentage value of precipitation probability) as the condition is registered in the condition storage area so that it becomes an umbrella mark.

The respective data such as the channel, program number, search character, display character position, condition and mark are not limited to those stored in the RAM or ROM of the CPU 11 as described above. In this case, the memory 12 can be attached to and detached from the broadcast receiving apparatus 1 so that the marks and the like can be changed as appropriate, and the keyboard 13 can be used to perform the registration process of each data. Instead, it can be changed by replacing the memory 12.

In the CPU 11, the microprocessor controls each unit of the broadcast receiving apparatus 1 according to the program in the ROM to cause the broadcast receiving apparatus 1 to function. Further, as will be described later, the CPU 11 searches the buffer of the microprocessor 5 at a predetermined interval, monitors the content thereof, and when the search character string is found, the CPU 11 retrieves the character information corresponding to the search character string from the buffer. It is read and processed as display data. Further, the read character information is designated in the text VRAM 7 by designating a display position.
The display is output at a predetermined display position on the LCD 23, or the condition determination is performed based on the character information and converted into a mark or the like for display output. Therefore, CP
U11 functions as an extraction unit that extracts specific information from the signal-processed broadcast data, and also as a display control unit that outputs the extracted data to a predetermined portion of the LCD 23 that serves as a display output unit. Furthermore, the CPU 11
Functions as information conversion means for converting a mark or the like set in advance according to the extracted data.

As shown in FIG. 5, the keyboard 13 includes an item selection key 31, a program selection key 32, a channel selection key 33, a power on / off key (ON / OFF) 34,
It is provided with a feed scroll key 35, a return scroll key 36, a display mode designation key 37, a registration key 38, etc., and performs various operations of the broadcast receiving apparatus 1. Item key 3
The item of the program to be reserved in advance (for example, the item indicating the type of the program such as weather, traffic information, stock price information, news, and cooking) can be selected by 1 and the channel of the broadcasting station can be selected by the channel key 33. You can Further, the program of each channel can be selected by the program selection key 32, and the power of the broadcast receiving apparatus 1 can be turned on / off by the on / off key 34. The scroll keys 35 and 36 are for scrolling a plurality of items stored in advance in the ROM of the CPU 11 or a plurality of items registered in the memory 12 described later in the forward or reverse order when the respective item keys 31 are pressed. And when the program key 32 is turned on,
You can scroll through selectable programs. Furthermore, when the channel key 33 is turned on,
Channels that can be selected can be selected by scroll keys 35 and 36. The display mode designation key 37 is
This is a key for switching the display mode of the LCD 23 between the clock display screen (main screen) and the teletext screen, and the clock display screen displays the year, month, day, day and time as shown in FIG. In addition, a character information display portion is provided. Further, on the teletext screen, as shown in FIG. 3, the content of the teletext being received is displayed. The registration key 38 is a key for designating the received content of the teletext to be displayed in the text information display portion of the clock display screen, and a specific designating method will be described later.

The memory 12 is composed of a RAM or the like and stores the reservation data and the like. That is, the memory 12 is divided into storage areas for reserved channels, program numbers, and received data. For each channel and program number item, the channel or program specified by operating the keyboard 13 is specified. No. is written. That is, when the channel key 33 is turned on, a certain channel is stored in the ROM
Read out from and displayed on the LCD 23. When the displayed channel is not the desired channel, the scroll keys 35 and 36 are operated to switch the sequentially displayed channels, and when the desired channel is displayed,
The registration key 38 is turned on to select that channel. C
When the channel is selected, the PU 11 stores the selected channel in a predetermined channel storage area of the memory 12. Next, a program is selected. In the same manner, this program is selected by pressing the program key 32 and pressing the scroll key 3
When a desired program is displayed on the LCD 23 by 5, 36, and when the corresponding program is displayed, the registration key 38 is pressed to select the program. The selected program number is written in the program number storage area of the memory 12.

Further, the received data storage area of the memory 12 stores the broadcast contents (broadcast information) of the received program page by page.

The original signal generator 14 is a so-called crystal oscillator composed of a crystal, a resistor, a capacitor, etc., and generates an original clock signal of a constant frequency.

The frequency dividing circuit 15 is formed by, for example, combining several stages of binary counters,
The original clock signal input from the original signal generator 14 is frequency-divided to generate a 1 Hz clock signal that can be used as a reference signal for a clock and output it to the CPU 11. CPU11
Measures the current time with the clock signal from the frequency dividing circuit 15 and displays the current time on the LCD 23,
Process calendar information.

Next, the operation will be described. Broadcast receiver 1
LCD 23 when not receiving the broadcast.
The time is displayed on.

That is, in the broadcast receiving apparatus 1, when the on / off key 34 of the keyboard 13 is turned off, the CPU 11 measures the current time based on the clock signal input from the frequency dividing circuit 15, and the display position To output the information of the current time to the corresponding position in the text VRAM 7. Further, the CPU 11 performs a date / time calculation process in accordance with the result of the above time calculation, determines the display position of calendar information such as the date, and outputs the calendar information to the text VRAM 7. The text VRAM 7 outputs current time information and calendar information to the display controller 9 via the CG 8, and as shown in FIG. 6 or FIG.
The current time is displayed at the predetermined position of.

In this state, when the on / off key 34 of the keyboard 13 is turned on, a character broadcast receiving process, a specific information extracting process from the received character broadcast signal, a display outputting process of the extracted specific information, and the like are performed. To do.

In order to extract this specific information, it is necessary to register the search character string, character position information, etc., as described above.

First, the registration process will be described with reference to FIGS. 7 and 8. Registration is performed by operating various keys on the keyboard 13. That is, as shown in FIG.
PU11 is set to the teletext screen by the display mode designating key, and checks whether it is set to the registration mode (step S1). When the registration mode is set, when the channel is registered in advance, the channel is set. If the channel is displayed and the channel is not registered in advance, the predetermined channel is displayed (step S2). When the channel is displayed, it is checked whether or not the channel has been designated, that is, whether the channel has been changed (step S3). When the channel has been designated, the designated channel number is displayed (step S4). , It is checked whether a channel registration operation has been performed (step S5). When the channel registration operation is not performed, the process returns to step S3,
Similarly, it is checked whether or not a channel designation operation is performed, and when the channel registration operation is performed, the designated channel is stored in the channel storage area (see FIG. 2) of the RAM of the CPU 11 (step S6). When the channel registration is completed, it is checked whether or not the program number is registered (step S7). If the channel number is registered, the receiving process of the program of the registered program number is performed (step S8), and the reception is performed. The contents of the selected program are displayed and output on the LCD 23 (step S9).

When the program number is not registered in step S7, the process proceeds to step S10 and waits until the program number is designated, and then the program is received and its contents are displayed (step S11). , S12). If the program number is not specified in step S10,
In step S13, it is checked whether a registration operation has been performed.

In step S10, it is checked whether or not the program number is designated. When the program is designated, the receiving process of the program of the designated program number is performed (step S11), and the received program is received. The content of is displayed and output on the LCD 23 (step S12). After that, it is checked whether or not the registration operation is performed (step S13), and when the registration operation is performed, the program number is changed to C as shown in FIG.
It is stored in the program storage area of the RAM of the PU 11 (step S14). When the registration operation is not performed in step S13, the process returns to step S10, and similarly, it is checked whether the program number is designated.

When the program number is registered, a search character string selection display, for example, as shown in FIG. 3, an underline is added to the beginning character string of a character string that can be searched on the teletext screen, and the search is performed. Lets you select whether the character string should be an underlined character string. Next, it is checked whether the search character string is specified, that is, whether the underline display is changed by the scroll keys 35 and 36 (step S16). If the search character string is not specified, Control goes to step S18. When the search character string is specified, the search character string selection display is changed, that is, the character string to be underlined is changed according to the changing operation (step S17). After that, it is checked whether or not the registration operation is performed (step S1
8) If the registration operation is not performed, step S16
Return to and perform the same processing. When the registration operation is performed, the designated search character string is stored in the search character storage area of the RAM of the CPU 11 (step S19).

When the search character string is registered, a character position selection display, for example, as shown in FIG. 3, an underline is added to the head character of a character that can be specific information on the teletext screen, and the specific information is underlined. A selection is made as to whether or not the character marked with is good (step S20). Next, it is checked whether or not a character is specified, that is, whether or not the scroll keys 35 and 36 for changing the underline display are operated (step S21), and the character is not specified. At times, the process proceeds to step S18. When the character is designated, the character selection display is changed, that is, the character to be underlined is changed according to the changing operation (step S22). After that, it is checked whether or not the registration operation is performed (step S23). If the registration operation is not performed, the step S23 is performed.
Returning to step 21, the same processing is performed. When the registration operation is performed, the designated character is stored in the display character position storage area of the RAM of the CPU 11 (step S2).
4).

When the character position is registered, an inquiry display as to whether or not to display the mark is displayed (step S25), and if the mark display is not selected, the process ends. When the mark display is selected, a display prompting the user to enter conditions for displaying the mark is displayed (step S26). As described above, for example, when the selected text broadcast is a weather forecast, the probability of precipitation is the condition for mark selection, and if the probability of precipitation is 10% or less, the clear mark, the probability of precipitation is 10% to 30%. If it is between cloudy and sometimes clear, and if the probability of precipitation is 30% or more, when the umbrella mark (see FIG. 3) is selected, the numerical value that is the condition for the selection is input.

When this condition is input (step S27), the CPU 11 displays the input condition (step S2).
8) It is checked whether or not a registration operation has been performed (step S29). If the registration operation is not performed, the process returns to step S27 to wait for a new condition input,
When the registration operation is performed, the input condition is set in the RAM of the CPU 11
It is stored in the condition storage area (step S30).

When the on / off key 34 of the keyboard 13 is turned on in the state where the registration process is performed in this manner, the character broadcast receiving process and the specific information from the received character broadcast signal are performed according to the registered contents. And the display output process of the extracted specific information are performed.

That is, as shown in FIG.
Always checks that the power is turned on (step P1), and when the power is turned on, outputs a control signal (for example, “H” signal) for instructing the power supply device 16 to turn on and It is checked whether it is the screen display mode, that is, the main screen display shown in FIG. 6 or the teletext screen shown in FIG. 3 (step P2). When the control signal instructing to turn on is input to the power supply device 16, the tuner 3 and the VI
Power is supplied to the F4, the microprocessor 5, and the error detector 6.

When the main screen display mode is not set, the CPU 11 performs a normal teletext reception process (step P
3) In the main screen display mode, the channels stored in the channel storage area of the RAM are read out,
The frequency of the channel is output to the tuner 3. The tuner 3 takes out a signal of a frequency designated by the CPU 11 from the teletext broadcast received by the antenna 2 and performs demodulation / detection processing by the VIF 4 and then C
A teletext signal corresponding to the designated program (program stored in the program number storage area of the RAM) is selected from the PU 11 and output to the microprocessor 5 (step P
4). The microprocessor 5 transmits the teletext signal to A /
After being digitally converted by the D converter, it is stored in a buffer for each scanning line and output to the error detector 6 to cause the error detector 6 to detect an error signal. The error detector 6 outputs the detected number of errors to the microprocessor 5 and the CPU 11, and when the number of errors is within a range where the error can be recovered, the microprocessor 5 decodes it with a built-in decoder to decode one page. The character data is stored in the buffer (step P5). When the received data for one page is stored in the buffer, the CPU 11 causes the RA
The search character string is read from M, and the search character string is searched from the received data stored in the buffer (step P6). It is checked whether or not the search character string is included in the received data (step P7). If the search character string is included in the received data, the character data to be extracted from the received data based on the display character position data in the RAM is searched. A buffer address is designated (step P8). Character data is read from the buffer in accordance with this buffer address (step P9).

When the character data is read, it is checked whether or not the mark display condition is stored in the condition storage area of the RAM (condition is set) (step P10). If the condition is set, the mark display mode is set. When it is determined that there is a mark, the mark (see FIG. 3) corresponding to the set condition is read from the RAM or the ROM (step P11). The read mark is output to the text VRAM 7. In the text VRAM 7, the mark is designated by the display position (see FIG. 10) of the display screen and CG is displayed.
8 and the CG 8 displays the pattern corresponding to the mark sent from the text VRAM 7 on the display controller 9
Output to. The display controller 9 determines the display position and the display content and controls the Y-CTR 21 and the X-CTR 22. Y-CTR21 and X-CTR22 are LC
A drive signal is output to D23, and the content corresponding to the corresponding position on the LCD 23 is displayed as shown in FIG. 10 (step P12).

When the display output is completed, it is checked whether the received data of the next page has been received (step P1).
3) When the reception data of the next page is received, step P
Returning to step 4, the same process is performed. As a result, new data contents can always be displayed at a predetermined position on the main screen.

At step P7, if the received data does not include the search character string, the process proceeds to step P13 to wait for reception of the next page.

In step P10, when the mark display condition is not set, it is determined that the character display mode is set, the character data read from the buffer is output to the text VRAM 7, and as shown in FIG. The character is displayed and output at a predetermined position on the main screen (step P15). When the display output of this character is completed, it is checked whether or not the data of the next page has been received (step P13), and similarly, the data is updated (steps P4 to P13 and step P15).

In step P13, when the reception data of the next page is not received, it is checked whether or not the power supply is turned off (step P14). When it is not turned off, the process returns to step P13 to receive the reception data of the next page. Check whether it has been done and whether the power has been turned off. When the power is turned off, the display output process of the character information ends.

In the above embodiment, when the content of the extracted character data changes from the newly received received data to the received data so far, for example, when the probability of precipitation changes and the display mark changes, Alternatively, a notification such as a warning sound to alert the viewer may be output.

As described above, the broadcast receiving apparatus 1 turns on / off the key 34 when the specific information of the teletext is designated.
When is turned on, specific information is extracted from the preset channel and program contents and displayed at a predetermined position on the main screen together with the time display and calendar information display, which are the display contents of the main screen. You can Therefore, it is possible to extract only the contents that the viewer wants to know from the contents of the teletext and display them in a display format that is easy to see together with the contents of the main screen. As a result, while looking at the information on the main screen, it is possible to accurately see the specific required information and also to accurately grasp the change in the specific information content.

Further, it is possible to convert specific information into a mark or the like set in advance according to the content of the information, and display and output it on a specific portion of the screen. Therefore, it is possible to display the information of the specific content more easily,
The specific required information can be grasped more accurately.

Further, when the content of specific information changes,
By notifying that effect, it is possible to more surely grasp the change in the information of the specific content.

[0047]

According to the first aspect of the present invention, only the necessary information is extracted from the broadcast content in which a program having a specific content is repeatedly broadcast for a predetermined time, and other programs or preset information is extracted. Since the extracted information can be displayed and output at the same time on a specific part of the screen to be displayed, it is possible to display specific required information in an easy-to-see state while viewing other programs and preset information. It is possible to accurately grasp changes in specific information content.

According to the second aspect of the present invention, the information of the specific portion extracted from the received signal is converted into a mark or the like preset according to the content of the information of the extracted specific portion, and the converted mark or the like is converted. Since the information can be displayed and output on the specific portion of the screen, the information of the specific content can be displayed more easily and the specific necessary information can be more accurately grasped.

According to the third aspect of the present invention, when the content of the information of the specific portion extracted by the signal extracting means changes, it can be notified of that fact, so that the change of the information of the specific content can be more reliably performed. You can figure it out.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of a broadcast receiving apparatus according to the present invention.

FIG. 2 is a diagram showing a specific information extraction data storage area formed in a RAM of the CPU shown in FIG.

FIG. 3 is a diagram showing an example of a mark corresponding to specific information.

FIG. 4 is a diagram showing an example of a teletext screen.

5 is a front view of a keyboard of the broadcast receiving apparatus shown in FIG.

FIG. 6 is a diagram showing an example of a main screen on which specific information is displayed in characters.

FIG. 7 is a flowchart (part 1) showing a registration process of specific information extraction data.

FIG. 8 is a flowchart (part 2) showing registration processing of specific information extraction data.

FIG. 9 is a flowchart showing a specific information display process on the main screen.

FIG. 10 is a diagram showing an example of a main screen displaying a mark of specific information.

[Explanation of symbols]

 1 Broadcast Receiver 2 Antenna 3 Tuner 5 Microprocessor 6 Error Detector 10 Display 11 CPU 12 Memory 13 Keyboard 14 Original Signal Generator 15 Frequency Divider 16 Power Supply

Claims (4)

[Claims] 1. Receiving means capable of receiving a broadcast radio wave for repeatedly broadcasting a program of a specific content for a predetermined time, and tuning means for extracting a broadcast signal from the broadcast radio wave received by the receiving means in synchronization with the predetermined radio wave. Signal processing means for processing the broadcast signal selected by the tuning means to a state in which it can be output, and processing of a program for repeatedly broadcasting a program of specific content for a predetermined time among the processed signals output by the signal processing means Signal extraction means for extracting information of a specific portion from a signal, extraction designation means for designating a specific portion of a processed signal to be extracted by the signal extraction means, processed signal by the signal processing means, extraction of the signal extraction means Display output means for displaying and outputting the information of the specified portion or predetermined information set in advance, and displaying other information for the information of the specified portion extracted by the extracting means. 2. A broadcast receiving device, comprising: a display control unit that outputs a display to a predetermined portion of the display output unit. 2. The receiving means is capable of receiving a teletext, the signal processing means performs signal processing of a teletext signal from a broadcast signal of the teletext, and the signal extracting means outputs the teletext signal of the teletext signal. The character information of the specific portion is extracted, and the display control means causes the character information of the specific portion of the character broadcast to be transmitted to another broadcast or to a predetermined portion of the display output means displaying the predetermined information. The broadcast receiving apparatus according to claim 1, wherein the character information of is displayed and output. 3. The display control means includes information conversion means for converting the information of the specific portion extracted by the signal extraction means into a mark or the like preset according to the content of the information of the extracted specific portion. The broadcast receiving apparatus according to claim 1 or 2, wherein the mark converted by the information converting unit is displayed and output on a predetermined portion of the display output unit. 4. An information change notifying means for monitoring a change in the information content of the specific portion extracted by the signal extracting means, and notifying that the information content of the specific portion is changed by a predetermined method when the content of the information of the specific portion changes. The broadcast receiving apparatus according to claim 1, 2 or 3, wherein the broadcast receiving apparatus is provided.