KR20060066851A - Television receiver and method for printing word image - Google Patents

Abstract

The present invention provides a television receiver and a method for extracting a character image from an image being displayed on a screen and printing it on a printer, controlling reception and output of a composite image signal, and controlling reproduction of predetermined image information. Control means for controlling extraction and printing of character images; Character image extraction means for extracting a character image from the image signal output to the screen according to the control of the control means; Text converting means for converting the text image extracted from the text support extracting means into text and outputting the text to the control means; And wireless transmission means for transmitting the text transmitted by the control means to the printer.

TV, wireless, printer, text, text

Description

Television receiver and method for printing of character image {Television Receiver and Method for Printing Word Image}

1 is a schematic diagram of a printing system using a television receiver to which the present invention is applied.

2 is a block diagram of a television receiver for printing a character image according to an embodiment of the present invention.

3 is a flowchart illustrating a method of printing a character image in a television receiver according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100: TV receiver 101: Tuner

102: Screen 103: Speaker

104: A / D converter 105: hard disk driver

106: control unit 107: video processing unit

108: audio processor 109: video output unit

110: amplifier 111: character image extraction unit

112: text converter 113: wireless transmitter

200: printer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to television receivers, and more particularly, to television receivers and methods capable of extracting a character image from an image being displayed on a screen and printing it on a printer.

In the rapid development of information and communication, to the multimedia field that combines various forms of information such as video and audio, as well as the rapid development of technology such as electricity, electronics, computer and communication, these days, also called digital revolution And presence forms are becoming digital from analog. Due to the development of MPEG (Moving Picture Experts Group) technology, which is a compression standard for moving image data to compress digital image data that requires a relatively large amount of data, the size of digital image data is gradually getting smaller. Increasingly, digital video and audio services have been applied to almost all fields such as communication and telecommunications, and digital devices for providing such services have emerged.

Among them, broadcasting and TV occupy an important place as an easy and effective information transmission medium in daily life, and thanks to the digital technology described above, video data and audio data are compressed and transmitted by MPEG technology, thereby adding a large amount of information. With the advent of digital TV, which can provide fast and reliable, more broadcasts can be easily enjoyed at home with clearer picture quality and more vivid sound.                         

Therefore, the capacity can be increased by 4 ~ 8 times compared to the existing analog method, so that it can provide services in various fields such as sports, movies, home shopping, and music, and also includes broadcasting, cable broadcasting, video on demand (VOD, Video On) As more and more video services are provided, such as demand, viewers can select and watch according to their own preferences, and viewers have a wider choice, and as a variety of broadcasts are provided, viewers can watch TV corresponding to many channels. Select to watch the desired broadcast.

In this way, various broadcasts of various channels are provided, and accordingly, various functions are added to TVs to provide convenience to various tastes of viewers. On-screen display (OSD: On-), which displays information on the TV screen when providing information or changing the TV's settings and functions, i.e., changing the input settings, display settings, audio settings, etc. Screen Display) method is used.

As the TV functions are diversified in recent years, TVs have been used for educational purposes in recent years, but the images output on the TV screens change so quickly that viewers may not understand the contents displayed on the screens.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a television receiver and a method for extracting a character image from an image being displayed on a screen and printing the same on a printer.                         

Another object of the present invention is to provide a television receiver and a method for scrapping and storing important broadcast contents by extracting and printing only a character image from an image on a screen.

It is still another object of the present invention to provide a television receiver and a method which can enhance the educational effect by extracting and printing only a character image while watching an educational broadcast.

In order to achieve the above object, the present invention provides a television receiver for printing a video signal output on a screen to a printer, the reception and output of the composite video signal, the control of the reproduction of the predetermined video information, Control means for controlling extraction and printing of character images; Text image extraction means for extracting a text image from the image signal output to the screen according to the control of the control means; Text converting means for converting the text image extracted from the text supporting means into text and outputting the text to the control means; And wireless transmission means for transmitting the text transmitted by the control means to the printer.

The present invention provides a method for printing an image signal output on a television receiver to a printer, the method comprising: a first step of setting a printing mode for printing a text image according to a user's printing instruction; A second step of extracting a text image from a video signal output on a screen in the printing mode; A third step of converting the extracted text image into text; And a fourth step of transmitting the converted text to the printer.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

1 is a schematic diagram of a printing system using a television receiver to which the present invention is applied, which outputs a composite video signal and extracts and outputs only a text image from a video signal being output and transmitted from the television receiver 100. It consists of a printer 200 for printing the character image.

The television receiver 100 performs a function of outputting a composite video signal transmitted to a broadcasting station on a screen, and also outputs a composite video signal transmitted from an external device such as an audio or DVD player on the screen. Here, the sound signal is output through the speaker, and the video signal is displayed on the screen.

When the user instructs the printing of the character image by using a remote controller or the like while the image signal is output as described above, the television receiver 100 extracts only the character image from the image signal currently output on the screen and wirelessly extracts the extracted character image. Transmission to the printer 200 through communication. In this case, the television receiver 100 transmits a predetermined IP address together with the text image, which is for compatibility of the television receiver 100 and the printer 200.

Then, the printer 200 prints the text image transmitted from the television receiver 100 on the paper stored therein. However, the printer 200 prints the character image only when the IP address transmitted from the television receiver 100 matches.

Looking at the configuration of the television broadcast system of the present invention having such a character image extraction function as follows.

2 is a block diagram of a television receiver for printing a character image according to an embodiment of the present invention.

Referring to FIG. 2, the television receiver 100 of the present invention includes a tuner 101 for receiving a composite video signal transmitted from a broadcasting station and outputting an analog video signal and an audio signal, and a screen for displaying the video signal ( 102, a speaker 103 for outputting an audio signal, an A / D converter 104 for converting an analog video signal output from the tuner 101 into a digital video signal, various video information, music information, and the like. To control the reception and output of a composite video signal, to control the reproduction of video information and the like stored in the hard disk driver 105, A control unit 106 for controlling extraction and printing, and a digital video signal output from the A / D converter 104 or a digital video signal transmitted by the control unit 106 in a signal form suitable for the screen 102. The audio processor 108 and the controller 106 which make the video processor 107 and the audio signal output from the tuner 101 or the audio signal transmitted by the controller 106 into a signal suitable for the speaker 103. The video output unit 109 for outputting the video signal output from the video processing unit 107 to the screen 102 and the audio signal output from the audio processing unit 108 are amplified and output to the speaker 103 under the control of. An amplifier 110 is provided.                     

Then, the television receiver 100 of the present invention, under the control of the control unit 106, the character image extraction unit 111 for extracting the character image from the image signal output from the image output unit 109, and the character support extraction And a text conversion unit 112 for converting the text image extracted from the unit 111 into text, and a wireless transmission unit 113 for transmitting the text transmitted by the control unit 106 to the printer 200.

The tuner 101 receives a composite video signal transmitted through a plurality of channels, and outputs a composite video signal of a channel to which the control unit 106 indicates output among the received channels. In this case, the tuner 101 outputs an analog video signal included in the composite video signal to the A / D converter 104 and outputs an audio signal to the audio processor 108.

The hard disk driver 112 is a storage medium for storing various composite image information such as dramas, movies, documentaries, and sporting events, and is embedded in the television receiver 100. In this way, the hard disk driver 105 is built into the television, so that the television has a function of storing a composite video transmitted to a broadcasting station, a video provided by a video, or the like.

In addition, the hard disk driver 105 stores an IP address used for the compatibility of the television receiver 100 and the preturn 200, and also executes various operations for the television receiver 100 to perform computer functions. Programs may be set.

The control unit 106 controls the selection of the channel received through the tuner 101 according to the user's instruction input through the remote controller or the like, controls the playback of the image stored in the hard disk driver 105, and also controls the audio. Control the output of a composite video signal reproduced by a DVD player (not shown) or the like.

As such, when the user instructs the printing of the text image using the remote controller or the like while the video signal is being output to the screen 102 by the control unit 106, the control unit 106 causes the text image extracting unit 111 to execute. A character image is extracted from an image signal output from the image output unit 109.

Accordingly, the text image extracting unit 111 extracts only the text image from the image signal output from the image output unit 109 and outputs it to the text converting unit 112, and the text converting unit 112 outputs the extracted text image. The text is converted into text and output to the controller 106. Subsequently, the controller 106 transmits the text converted by the text converter 112 to the printer 200 through the wireless transmitter 113. At this time, the controller 106 transmits the IP address stored in the hard disk driver 105 together with the text.

When the text is transmitted through the wireless transmitter 113, the printer 200 prints the text transmitted from the television receiver 100 on the received paper, but prints the text only when the IP addresses match.

Here, the IP address may be set to a default state, but may be arbitrarily set by the user.

The wireless transmitter 113 may vary in implementation depending on the wireless communication method between the television receiver 100 and the printer 200.

For example, when the television receiver 100 and the printer 200 transmit and receive an infrared signal, the wireless transmitter 113 is implemented as an infrared communication port.

When the television receiver 100 and the printer 200 transmit and receive radio frequency (RF) signals, the wireless transmitter 113 is implemented as an RF module.

When the television receiver 100 and the printer 200 transmit and receive signals of the Bluetooth communication band, the wireless transmitter 113 is implemented as a Bluetooth communication module.

In addition, the television receiver 100 and the printer 200 may be connected by a wire such as a coaxial cable. In this case, parallel data or serial data may be transmitted, but the serial data may be connected using a USB port or an RS232C port. It would be desirable to.

3 is a flowchart illustrating a method of printing a character image in a television receiver according to an embodiment of the present invention.

Referring to FIG. 3, when the television receiver 100 outputs a video signal on the screen 102, when a user instructs printing of a text image using a remote controller or the like (S301), the television receiver 100 is used. Sets the printing mode for printing the text image (S302).

In the printing mode, the television receiver 100 extracts a text image from the image signal output on the screen 102 (S303), and then converts the extracted text image into text (S304).

Subsequently, the television receiver 100 transmits the converted text to the printer 200 (S305). At this time, the television receiver 100 transmits a predetermined IP address together with the text.                     

When text is transmitted from the television receiver 100 in this manner, the printer 200 prints the text transmitted from the television receiver 100 on the received paper (S306).

Although the technical spirit of the present invention has been described in detail according to the above-described preferred embodiment, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, those skilled in the art will understand that various embodiments are possible within the scope of the technical idea of the present invention.

As described above, according to the present invention, by extracting a character image from the image being displayed on the screen and printing it on a printer, it is possible to check important broadcasting articles again, improve the review effect of education, and increase the utility of the television receiver. have.

Claims (10)

In a television receiver for printing a video signal output on a screen to a printer, Control means for controlling reception and output of a composite video signal, controlling reproduction of predetermined image information, and controlling extraction and printing of a character image; Text image extraction means for extracting a text image from the image signal output to the screen according to the control of the control means; Text converting means for converting the text image extracted from the text image extracting means into text and outputting the text to the control means; And Wireless transmission means for transmitting the text transmitted by the control means to the printer TV receiver comprising a. The method of claim 1, And said control means transmits a predetermined IP address when text is transmitted to said printer. The method of claim 2, And said predetermined IP address is set by default or arbitrarily set by a user. The method according to any one of claims 1 to 3, And said wireless transmission means converts text into an infrared signal and transmits it. The method according to any one of claims 1 to 3, And said wireless transmission means converts text into a radio frequency signal for transmission. The method according to any one of claims 1 to 3, And said wireless transmission means converts text into a signal of a Bluetooth communication band and transmits it. The method of claim 1, Wired connection means for transmitting the text transmitted by the control means to the printer via a wire TV receiver further comprising. A method for printing a video signal output to a television receiver to a printer, A first step of setting a printing mode for printing a text image according to a printing instruction of a user; A second step of extracting a text image from a video signal output on a screen in the printing mode; A third step of converting the extracted text image into text; And A fourth step of transmitting the converted text to the printer Method of printing a character image of a television receiver comprising a. The method of claim 8, In the fourth step, the television receiver transmits a predetermined IP address together with the text. The method of claim 9, A fifth step of printing, by the printer, text transmitted from the television receiver only when a predetermined IP address and an IP address transmitted from the television receiver match. Printing method of the character image of the TV receiver further comprising.

Images