KR20010001243A - A delaying device of caption data output for television - Google Patents

Abstract

PURPOSE: An apparatus for delaying a caption data outputting on a TV is provided to display caption data after a predetermined time according to a viewer's preference, so that the caption data delay function may help the viewer learn foreign language effectively. CONSTITUTION: A tuner(10) tunes a specific broadcasting station by a control signal of a micro computer(40). A caption detector(50) generates sound intermediate frequency(SIF) signals and picture IF(PIF) signals among tuned signals, and detects a caption signal from the PIF signals. A video processor(60) processes caption data output from the caption detector(50) with an on screen display(OSD) function, and outputs the OSD caption data through a cathode ray tube(CRT)(70). A caption storage(80) temporarily stores the caption data and outputs the stored caption data to the video processor(60). A delay controller(90) delays an output signal of the stored caption data for a set time, and outputs the delayed output signal. A delay time input circuit(100) inputs and stores a delay time required by a user in the delay controller(90).

Description

A delaying device of caption data output for television

The present invention relates to a television having a caption data output function, and more particularly, to output caption data for a certain time so that the caption data output on the screen by caption function can be viewed after a certain time while the caption function is being performed. A caption data output delay device of a television to be delayed.

In accordance with the trend of diversified and advanced television functions, televisions with caption functions have been provided. In a television with a caption function, when the user turns on the caption function while receiving caption broadcasting, the caption data signal is synthesized with a video signal in real time and output on the screen of the television using the OSD function.

That is, in a television having a conventional caption function, if a caption data signal is included in a signal of a specific broadcasting station input through a tuner, it is detected from the modulated PIF signal through a caption detection device. After that, the detected caption data signal is modulated by the image processor, synthesized with the image signal using an OSD function, and then output through the CRT. The output caption data is usually subtitled at the bottom of the CRT screen and output.

This caption function is particularly helpful for language learning. For example, when actors talk in a foreign language such as English, Chinese, or Japanese in a movie or drama, the corresponding language is translated into Korean and synthesized into a caption signal. Caption decrypting device decrypts this and sends it to the television set and displays it as a caption at the bottom of the currently displayed screen. In other words, the Korean translation of the contents corresponding to the dialogue in the original language on the current screen is displayed in subtitles in real time, which helps a lot in listening and interpreting English.

However, since the signal is synchronized so that the caption subtitles are output through the screen at the same time as listening to the voice on the screen of the television receiver, when the language is used for foreign language learning, the contents must be checked at the same time while listening to the voice. There was a difficulty in listening to the correct pronunciation of the original language and recognizing the translated content.

The present invention has been made to solve the above problems, and an object of the present invention is to output the caption data so that the caption data output on the screen by caption function can be seen after a certain time while the caption function is being performed. The present invention provides a caption data output delay device for a television which is delayed by a certain time.

The caption data output delay apparatus of the present invention for achieving the above object comprises tuning a specific broadcasting station in a tuner according to a control signal of a microcomputer, generating SIF and PIF signals among the tuned signals, and caption signals among the PIF signals. In a television comprising a caption detection unit for detecting a; and an image processing unit for processing the caption data output from the caption detection unit with an OSD function and outputting the same through a CRT, the caption detection unit detecting a caption signal included in the PIF signal is output. A caption storage unit for temporarily storing caption data and outputting the caption data to the image processing unit, a delay control unit for outputting the output of the caption data stored in the caption storage unit after delaying for a predetermined time period, and the delay control unit. And a delay time input unit for inputting a delay time.

1 is a schematic configuration diagram of a caption data output delay apparatus of a television of the present invention;

2 is a flowchart showing an operating state of the caption data output delay apparatus of the television of the present invention;

3A to 3B are front views of the television illustrating the screen switching state at the time of caption data output.

<Explanation of symbols for main parts of drawing>

10: tuner 20: voice processing unit 30: speaker

40: micom 50: caption detection unit 60: image processing unit

70: CRT 80: caption storage unit 90: delay control unit

100: delay time input unit 110: TV (television)

Hereinafter, a caption data output delay apparatus of a television of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is to improve the caption function of the television to help a lot of foreign language learning, referring to Figure 1, caption detection unit 50 for detecting the caption signal contained in the PIF signal in a conventional television having a caption function Caption storage unit 80 for temporarily storing the caption data output from the output to the image processing unit 60, and outputting after delaying the output of the caption data stored in the caption storage unit 80 for a predetermined time A delay control unit 90 and a delay time input unit 100 for inputting and storing a delay time desired by the user is further included in the delay control unit 90.

The caption detection unit 50 is pre-installed in a television, and conventionally detects a caption data signal included in an intermediate frequency image signal (PIF) signal and inputs it to the image processing unit 60 (connected with a dotted line). In 60), the caption data signal is converted into OSD characters and then output through the CRT 70. The output of the OSD text is performed by the OSD text generator, which is integrated into the image processor 60 or is configured as a separate device.

Unlike the above, according to the present invention, the caption data output from the caption detection unit 50 is first input to the caption storage unit 80. The caption storage unit 80 is for temporarily storing the caption data signal and may be configured using a memory device. The signal output from the caption storage unit 80 is essentially the same as the signal of the caption detection unit 50.

Caption data stored in the caption storage unit 80 is adjusted by the output timing timing delay control unit 90. The delay control unit 90 outputs the caption data immediately when the delay time is not set or after delaying for a delay time set by the user.

The delay time input unit 100 is used to input a delay time to the delay controller 90. The delay time input unit 100 stores the delay time setting data input by the user and delivers the delay time data to the delay controller 90 when the time delay operation of the caption data is performed. After receiving the delay time data, the delay controller 90 delays the output of the caption data stored in the caption storage unit 80 by a predetermined time. This may be configured by using a separate time input key or may be configured to receive time data directly from the microcomputer 40.

The delay time input unit 100 also directly transmits the delay time data input by the user to the delay control unit 90, stores the delay time data in the delay control unit 90, and uses the delay time data when a delay command is input. It will be apparent to those skilled in the art to which the present invention pertains that it is possible to delay the output of caption data. The delay can be specified in the range of tens of ms to several seconds.

Effects of the caption data output delay device of the television of the present invention having the above configuration will be described with reference to FIGS. 2 and 3.

If a broadcast including caption data is input while watching television, the user may input a caption output command to output a caption screen. Although not shown, this can be done by using a remote control unit for remote control or by using function keys installed on the front of the television.

If the caption output command is not input, the PIF signal is directly input to the image processing unit 60 to be processed and then outputs an image screen through the CRT 70. At the same time, the SIF signal is input to the voice processing unit 20 and the voice signal is output through the speaker 30. At this time, the caption detection unit 50 is not operated and maintains a standby state.

When the caption output command is input by the viewer, the microcomputer 40 recognizes this and outputs a control signal to the caption detector 50 to start the operation. The caption detection unit 50 detects caption data included in the PIF signal and outputs the caption data to the caption storage unit 80. The caption storage unit 80 does not store the caption data input at this time and outputs the input immediately. The caption data thus output is synthesized with the image screen by the image processor 60 and then output as captions as OSD characters. At this time, caption data is output on the screen simultaneously with the audio output signal, which is the same as the conventional method.

In the state where the caption data is output as described above, the viewer may input a delay command to delay the output of the caption data. At this time, of course, the command is input using the remote controller or the function keys.

When the delay command of the caption data is input, the microcomputer 40 temporarily outputs a control signal to the caption storage unit 80 to temporarily store caption data input through the caption detection unit 50. At the same time as storing the caption data in the caption storage unit 80, the microcomputer 40 outputs a control signal to the delay control unit 90 to operate. It is important to set the delay time so that it can be output after the end of the original language output through the TV speaker, and it is usually desirable to set it from several tens of ms to several seconds.

As another method, it is possible to service by setting an appropriate delay time in advance in a television broadcasting station. That is, in the case of inserting a subtitle signal in a television broadcasting station, it is possible to provide a better service by outputting a translation of the subtitle after the dialogue in the movie is finished. By selecting the delay mode, the viewer can view subtitles with appropriately delayed output on the screen and compare them with the voices they have listened to.

The delay controller 90 reads the delay time data stored in the delay time input unit 100 according to the control signal of the microcomputer 40 and stops the movement of the caption data stored in the caption storage unit 80 during this delay time. Let's do it. The caption data output after being delayed from the caption storage unit 80 for a predetermined time is input to the image processing unit 60 and processed through the CRT 70 after being processed as in the related art.

3A and 3B are caption data displayed as captions after a delay time has elapsed after voice output. In FIG. 3A, a specific character is exemplified in English as "Good morning! I am Mr. Park." If it is output through the speaker, it can be seen in FIG. 3B that after the time elapsed by the delay time set by the user, the caption data "Hello! I am Mr. Park" is displayed as a caption as shown. However, the voice output is already output in FIG. 3A. Therefore, the screen state of FIGS. 3A and 3B is a state in which different image frames are output.

The caption data output delay apparatus of the present invention as described above, the caption data output is fixed so that the caption data output on the screen by the original dialogue and caption function can be seen at regular intervals while the caption function is being performed. It is effective in delaying time to help a lot of foreign language learning.

Although the invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that modifications and variations can be made within the spirit and scope of the invention, and such variations or modifications will belong to the appended claims. .

Claims (1)

A caption detection unit 50 for tuning a specific broadcasting station in the tuner 10 according to the control signal of the microcomputer 40, generating SIF and PIF signals among the tuned signals, and detecting a caption signal among the PIF signals, and the captions; In the television comprising an image processing unit 60 for processing the caption data output from the detection unit 50 by the OSD function and output through the CRT 70, A caption storage unit 80 for temporarily storing caption data output from the caption detection unit 50 for detecting a caption signal included in the PIF signal and outputting the caption data to the image processing unit 60; A delay control unit 90 for outputting the output of the caption data stored in the caption storage unit 80 after being delayed for a set time; And And a delay time input unit (100) for inputting and storing a delay time desired by a user in the delay control unit (90).