KR100240584B1 - Method and apparatus for displaying teletext information on tv - Google Patents

Abstract

The apparatus and method for displaying teletext information of a TV is to detect the teletext information provided from a broadcasting station and store the detected information, and to continuously display the detected information until the user desires or until other teletext information is detected. In a TV having a PIP function, a teletext data of one channel is detected from a plurality of broadcast signals received through an antenna, and the detected teletext data is stored according to one control signal, and the stored teletext data according to one key input signal. Is controlled to continuously display the video signal along with the video signal.

Description

TV teletext information display device and method thereof

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television, and more particularly, to a teletext information display apparatus and a method of a TV for allowing a user to always watch scores when watching sports broadcasts using a TV.

In general, the broadcast signal transmitted by the broadcasting stations is separated from the video signal and transmitted with separate information on some lines of the broadcast signal.

There is teletext information at this extra level.

The teletext information is carried on some lines of the broadcast signal and is composed of digital data corresponding to a character or a picture. For example, teletext information includes news information, securities information, entertainment information, leisure information, sports information, and TV guide information.

This teletext information is combined with the video signal and displayed on the TV.

Hereinafter, a case in which a sports broadcast video signal and corresponding teletext information are displayed will be described.

First, when a broadcaster transmits a sports broadcast signal, that is, a sports video signal and corresponding teletext information, it is received by a TV. Only the teletext information is detected from the received broadcast signal, and the video signal is signal-processed to be displayed, and the video signal and the teletext information are synthesized and displayed on the screen of the TV.

The teletext information here is score information which is generally displayed during a game. Such score information is not displayed continuously during a sports game, but only at regular intervals or when there is a change in score.

The same also applies to other sports programs. For example, when a broadcast program broadcast guide teletext information is displayed during TV viewing, the teletext information passes when the user is eagerly watching a video signal or momentarily moves away from the TV screen.

Therefore, when a user is watching a sports program broadcast, the viewer does not continuously display the sports program during the game, but displays the sports program at a predetermined time interval or only when there is a change in score. If you do not have a relationship to watch, but if you watch from the middle, there is a problem that you feel frustrated because you first want to check the score.

Also, if the teletext information of the program guide information is displayed while watching TV, the teletext information being displayed may pass or disappear if the viewer is eagerly watching a video signal or if he is away from the TV screen. There is a problem that can not determine whether the text information is displayed.

Accordingly, the present invention has been made to solve the above-mentioned problems in the prior art, and an object of the present invention is to detect the teletext information provided by a broadcasting station and store the detected information whenever the user desires or another. Disclosed is a teletext information display apparatus for a TV that can be continuously displayed until teletext information is detected.

Another object of the present invention is to provide a teletext information display method of a TV corresponding to the teletext information display apparatus of the TV.

1 is a block diagram of a teletext information display apparatus of a TV according to a first embodiment of the present invention.

2 is a block diagram of a teletext information display apparatus of a TV according to a second embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10, 20, 21: tuner 11, 22: signal processing unit

12, 24: teletext data detection unit 13, 25: storage unit

14, 26: control unit 15, 27: OSD processing unit

16, 23, 28: signal synthesis unit 17, 29: display unit

18, 30: key input unit

A feature of the apparatus for displaying teletext information of a TV according to the present invention for achieving the above object is a first tuner for tuning a broadcast signal broadcast on a main screen among broadcast signals received through an antenna, and broadcast received through an antenna. A second tuner for tuning a broadcast signal broadcasted on a PIP screen among the signals; a signal processor for displaying a broadcast signal tuned by the first tuner and the second tuner; and a main screen and a PIP screen processed by the signal processor. A TV having a PIP function comprising a first signal synthesizing unit for synthesizing and outputting a broadcast signal of a broadcast signal and a display unit for composing a main screen and a PIP screen, the TV signal being received on a PIP channel of the broadcast signals processed by the signal processing unit; A teletext data detector for detecting teletext data of a broadcast signal; A key input unit for providing a key input signal for continuously displaying the detected teletext data on the display unit; A storage unit for storing the teletext data detected by the data detector according to whether a key input signal is input; A control unit which reads the stored teletext data according to the key input signal and continuously displays the teletext data on the PIP screen of the display unit; An OSD processing unit for OSD processing the teletext data read from the storage unit according to the output signal of the controller; And a signal synthesizer for synthesizing the broadcast signals of the main screen and the PIP screen output from the teletext data processed by the OSD and the first signal synthesizer.

A feature of the method for displaying teletext information of a TV according to the present invention for achieving the above object is a tuning step of tuning a broadcast signal broadcast on the main screen and the PIP screen among the broadcast signals received through the antenna, in the tuning step A signal processing step for signal-processing the tuned broadcast signal to be displayed, a signal synthesis step for synthesizing and outputting a broadcast signal of the main screen and the PIP screen processed in the signal processing step, and a main screen and a PIP screen. A TV having a PIP function having a display step, the method comprising: detecting teletext data of a broadcast signal received on a PIP channel among signal processed broadcast signals; Storing the teletext data detected in the step; Reading stored teletext data according to a key input signal for selecting the detected teletext data to be continuously displayed and controlling the displayed teletext data to be continuously displayed on the PIP screen together with the PIP image signal; Continuously detecting the teletext data in the currently received broadcast signal while continuously displaying the teletext data on the PIP screen; Comparing the teletext data in the currently detected PIP broadcast signal with the stored teletext data currently being displayed; As a result of the comparison, when the teletext data is different, the stored teletext data is deleted, and newly detected teletext data is stored and displayed on the PIP screen of the display unit.

Hereinafter, a teletext information display apparatus and a method thereof for a TV according to the present invention will be described with reference to the accompanying drawings.

[First Embodiment]

FIG. 1 is a block diagram of a teletext information display apparatus for a TV according to a first embodiment of the present invention. Referring to FIG. 1, the block diagram shows a broadcast signal received through an antenna ANT1. A tuner 10 tuned to fit the selected channel; A signal processor 11 which is signal-processed to display the tuned broadcast signal; A teletext data detector 12 for detecting teletext data from the processed broadcast signal; A storage unit 13 for storing the detected teletext data; A key input unit 19 for providing a key input signal to continuously display teletext data stored in the storage unit 13 on one screen; According to the key input signal of the key input unit 19, the teletext data stored in the storage unit 13 is read out and continuously output with one control signal, and the teletext data different from the teletext data currently stored in the storage unit 13 is different. A control unit 14 for providing a control signal to delete previously stored teletext data and to store new teletext data when is detected; An OSD processor (15) for processing the teletext data output from the controller (14) in the form of an OSD according to one control signal; A signal synthesizer 16 for synthesizing the OSD-processed teletext data and the image signal processed by the signal processor 11; The display unit 17 displays a signal obtained by combining the video signal and the teletext data.

The operation of the teletext information display apparatus of the TV having such a configuration will be described.

First, a broadcast signal transmitted from a broadcasting station is received through an antenna ANT1.

The received broadcast signal is tuned to the channel selected by the user in the tuner 10, and the tuned broadcast signal is provided to the signal processor 11. The signal processor 11 processes the broadcast signal tuned by the tuner 11 to be displayed on the display 19.

Only the teletext information of the broadcast signal thus processed is detected by the teletext data detector 12 and stored in the storage 13 according to the control signal of the controller 14.

As a result, only the video signal excluding the teletext data is output from the signal processor 11 to the signal synthesizer 16.

At this time, when the user inputs a key input signal to continuously display the teletext data on the display unit 17 through the key input unit 18, the control unit 14 stores the data in the storage unit 13 according to the signal. Read teletext data.

The teletext data read from the storage unit 13 is provided to the OSD processing unit 15 according to the output control signal of the control unit 14 and processed in the OSD form. The OSD data of the teletext data processed as described above is synthesized by the image signal output from the signal processor 11 and the signal synthesizer 16 to be continuously displayed on the display unit 17. At this time, the continuous display of the teletext data is continuously displayed until data different from the currently displayed teletext data is detected.

However, if teletext data different from the currently displayed teletext data is detected by the teletext data detection unit 12, the control unit 14 deletes the previous teletext data stored in the storage unit 13 and newly detects it. The stored teletext data to the storage unit 13.

This is because the teletext information transmitted by the broadcasting station is not continuously transmitted, but is transmitted only for a predetermined time or only when another information is provided to the user. 13 is continuously stored and displayed on the display unit 17.

Let's look at an example of the method for the operation.

Assume that a baseball game is currently being broadcast on TV. The broadcasting station transmits teletext information about the scores of the opponents in the current baseball game. When the teletext information about the score is transmitted, the teletext data detection unit 12 detects the teletext data transmitted from the broadcasting station.

The teletext data of the detected score is stored in the storage unit 13 and displayed on the display unit 17 through the OSD processing unit 15 and the signal synthesizing unit 16.

The displayed teletext data is displayed for a certain time and then disappears when a key input of the key input unit 19 is not provided. This is because the broadcasting station provides teletext data only for a certain time.

Therefore, when the user wants to continuously see the displayed teletext data, the user inputs the key input signal of the key input unit 14 to read the teletext data stored in the storage unit 13 continuously even if the displayed teletext data disappears. It is displayed on the display unit 17.

On the other hand, since the teletext data detection unit 12 continuously detects the teletext data from the broadcast signal provided by the broadcasting station, when the teletext data detection unit 12 detects the teletext data different from the previously stored teletext data, the previously stored teletext data is deleted and newly added. The detected teletext data is stored and continuously displayed on the display unit 17.

On the contrary, when the user does not want to continuously display the teletext data, the display may be blocked by using the key input unit 19.

Second Embodiment

FIG. 2 is a block diagram of a teletext information display apparatus of a TV having a picture in picture (PIP) function according to a second embodiment of the present invention. Referring to FIG. The same reference numerals will be omitted for the same components that differ from the first embodiment in FIG.

Looking at the configuration, the second tuner 21 for tuning the broadcast signal received through the antenna ANT1 to the channel of the PIP screen; A signal processor 22 for signal-processing the broadcast signal tuned by the first tuner 20 and the second tuner 21; A first signal synthesizing unit 23 for synthesizing the video signal of the main screen processed by the signal processing unit 22 and the broadcasting signal of the PIP screen; Each function of the teletext data detector 24 for detecting teletext data in the PIP broadcast signal processed and output by the signal processor 22 is added.

Let us look at the operation of the second embodiment according to the present invention having such a configuration.

First, at least one channel or more broadcast signals received through the antenna ANT1 are tuned to different channels, respectively. Each of the tuned different broadcast signals is processed by the signal processor 22 to be displayed on the display 29. Here, the first tuner 20 tunes to a channel broadcasted on the main screen, and the second tuner 21 tunes to a channel broadcasted on the PIP screen.

The PIP broadcast signal and the main screen broadcast signal processed by the signal processor 22 are output to the second synthesizer 28. Then, the teletext data detector 24 detects the teletext data among the broadcast signals processed by the signal processor 2.

At this time, the teletext data detected by the teletext detector 24 is output according to the input of the key input signal of the key input unit 30. If the key input signal of the key input unit 30 does not come in, the controller 26 In accordance with the output control signal of the output to the OSD processing section 27, the OSD is processed and then output to the second synthesizer (28). Accordingly, the teletext data of the PIP broadcast signal OSD-processed to the broadcast signal of the main screen output from the first synthesizer 23 and the video signal of the PIP screen are synthesized and displayed on the display unit 29.

Meanwhile, when an input signal is input through the key input unit 30, the data detected by the teletext data detection unit 24 is stored in the storage unit 25 according to one control signal of the control unit 26 and the control unit 26 simultaneously. After the readout is output to the OSD processing unit 27 and the OSD processing, the output is output to the second synthesis unit 28.

Accordingly, the teletext data of the PIP broadcast signal OSD-processed to the broadcast signal of the main screen output from the first synthesizer 23 and the video signal of the PIP screen are synthesized, and the teletext data detector 24 further transmits the teletext data. Is displayed on the PIP screen of the display unit 29 until is detected.

When the teletext data detection unit 24 detects data different from the currently displayed teletext data while being continuously displayed, the previous tele previously stored in the storage unit 25 according to one control signal of the control unit 26. The text data is deleted and the newly detected teletext data is stored. After storage, the display is continuously displayed on the PIP screen of the display unit 29 as described above.

A method corresponding to the above-described operation will be summarized.

First, when a user wants to watch a broadcast of another channel while watching TV as the main screen, the user inputs a PIP screen selection key to simultaneously watch the main screen and the PIP screen.

For example, if a baseball game is being broadcast on the PIP screen, the user may want to check the progress of the baseball game, that is, the score. Then, the user provides a key input signal using the key input unit 30. When the key input signal is provided, since the PIP broadcast signal, that is, the teletext data about the score of the baseball game is stored in the storage unit 25, the control unit 26 reads the score teletext data stored in the storage unit 25. After the OSD processing through the OSD processing unit 27, it is displayed on the PIP screen of the display unit 29.

Therefore, in the present invention, when the teletext data transmitted from a broadcasting station is stored in the storage unit 25 and a key input signal is input according to a user's selection, the present invention displays the stored teletext data according to a control signal of the control unit 26. The main screen or the PIP screen of (29) is continuously displayed until other teletext data is detected.

The present invention can be applied not only to teletext data of a score of a sports program but also to teletext data of another broadcast program.

As described above, the apparatus for displaying teletext information of the TV and the method according to the present invention store the detected teletext data and continuously display the detected teletext data on the main screen or PIP screen of the TV according to the user's selection. Even if the program is not viewed from the beginning, there is an advantage that the teletext information displayed before can be checked at any time.

In particular, there is an effect that it is possible to check the progress of the game, for example, the score between the opponents, which is not displayed on the TV screen during the sports broadcast program at any time.

Claims (2)

A first tuner for tuning a broadcast signal broadcast on a main screen among broadcast signals received through an antenna, a second tuner for tuning a broadcast signal broadcast on a PIP screen among broadcast signals received through an antenna, and a first tuner; A signal processor for displaying a broadcast signal tuned by a second tuner so as to display the first signal; a first signal synthesizer for synthesizing and outputting broadcast signals of a main screen and a PIP screen processed by the signal processor; and a main screen and a PIP screen. A television having a PIP function having a configurable display, comprising: a teletext data detector for detecting teletext data of a broadcast signal received on a PIP channel among broadcast signals processed by the signal processor; A key input unit for providing a key input signal for continuously displaying the detected teletext data on the display unit; A storage unit for storing the teletext data detected by the data detector according to whether a key input signal is input; A control unit which reads the stored teletext data according to the key input signal and continuously displays the teletext data on the PIP screen of the display unit; An OSD processing unit for OSD processing the teletext data read from the storage unit according to the output signal of the controller; And a signal synthesizing unit for synthesizing the broadcast signals of the main screen and the PIP screen output from the first signal synthesizing unit with the OSD processed by the OSD processing unit and outputting them to the display unit. Device. A tuning step of tuning a broadcast signal broadcast on a main screen and a PIP screen among the broadcast signals received through an antenna; a signal processing step of enabling signal display of the broadcast signal tuned in the tuning step; and in the signal processing step A TV having a PIP function comprising a signal synthesizing step of synthesizing and outputting a broadcast signal of a processed main screen and a PIP screen, and a display step of composing a main screen and a PIP screen, wherein a PIP channel of the processed broadcast signals is provided. Detecting teletext data of a broadcast signal received by the apparatus; Storing the teletext data detected in the step; Reading stored teletext data according to a key input signal for selecting the detected teletext data to be continuously displayed and controlling the displayed teletext data to be continuously displayed on the PIP screen together with the PIP image signal; Continuously detecting the teletext data in the currently received broadcast signal while continuously displaying the teletext data on the PIP screen; Comparing the teletext data in the currently detected PIP broadcast signal with the stored teletext data currently being displayed; And comparing the stored teletext data with the stored teletext data and displaying the newly detected teletext data on the PIP screen of the display unit.

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