KR20000021888A - Method for automatically switching screen of internet television - Google Patents

Abstract

PURPOSE: A method for automatically switching a screen of an internet television is provided to always enjoy the internet and TV program without a tedious. CONSTITUTION: A method for automatically switching a screen of an internet television includes three steps. The internet television is consisted of an internet module(30) comprising a transformation part transforming a transmitted information into an image or a voice, a modem(29) being connected to a telephone line and transform an information transmitted, an internet processing part(31) performing an internet connection according to a control of a control part(11) and a television module(10) comprising an amplification part. A first step is to select an internet mode. A signal being inputted from the internet processing part is detected by a control part and that is in a file transmission state is judged in a second step. A third step is of the control part to offer an output the control signal and exchange an internet screen into the TV screen.

Description

How to automatically change the screen of Internet TV

The present invention relates to an Internet TV, and in particular, when the file is transmitted in the Internet mode, the screen can be switched from the Internet screen to the TV screen. A method for automatically switching the screen of a television.

With the spread of the Internet and the worldwide access of computers, computer functions go beyond the original functions of computers, and even have multimedia functions such as TV and radio. In other words, television programs and radio stations spread around the world have spread their programs through the Internet, allowing users to view television programs and radio programs through computers without television or radio.

However, in developing and underdeveloped countries, with the exception of some advanced countries, the penetration of computers is so low that the benefits of the Internet are not evenly distributed to people around the world, and even if you have a computer, it is very difficult to run it. Except that it was very difficult to actually experience the world of the Internet.

Therefore, the Internet TV which adds the internet function to the television which is easy to implement and is highly popular worldwide is being researched and marketed on the market. The Internet TV is connected to the access network by a telephone line or other connection like a computer, and the Internet is executed by a web browser. The advantage of Internet TV is that when viewers want to get more detailed information of the broadcasted program while watching a broadcast program such as news or movie, they can watch more faithfully by directly connecting to the Internet and searching for the information. Done. In other words, unlike a conventional TV which provides information unilaterally, the viewer can directly select the information desired by the viewer.

Internet TV basically consists of two screens. One is a TV screen on which a general TV program is broadcasted, and the other is an Internet screen showing a website connected in Internet mode. If the user selects the Internet mode while watching a normal TV program, the TV is connected to the external access network and the screen is switched from the normal TV screen to the Internet screen. While viewing the Internet screen, the viewer moves to the desired website (Web Site) and receives the desired file.

In general, television viewers use a modem on an Internet television and connect a telephone line to the modem, instead of using a dedicated line to connect the television to the Internet. High speed communication networks such as cable networks and optical networks have a very high data transmission speed. However, since these high speed networks are very expensive, modems of 33.6kbps or 55.6kbps are mainly used. However, on the Internet, not only simple information consisting of text but also information consisting of images exist. Furthermore, a video file such as a TV program that a viewer wants to watch exists as a data file.

Image files and video files of TV programs are very large. Thus, even when using the fastest 55.6kbps modem, it takes at least a few minutes and a few hours to receive such a file. Therefore, since the TV program cannot be watched while the file is being transmitted, the viewer cannot watch the TV program for a long time. Of course, you can select the screen switching button or function to transfer the screen from the Internet screen to the TV screen during the file transfer or to watch TV programs during the file transfer using the PIP (Picture In Picture) function. It was very inconvenient because I had to make a choice, and there was a problem watching the original screen because the screen was very small even in the PIP function.

The present invention has been made to solve the above problems, the user can enjoy the Internet and TV programs without boredom by automatically switching the Internet screen to the TV screen and TV screen to the Internet screen at the end of file transfer and file transfer in the Internet mode An object of the present invention is to provide an automatic screen switching method of Internet TV.

In order to achieve the above object, the automatic screen switching method according to the present invention includes a control unit, a signal processing unit for processing a signal under the control of the control unit, amplified video and audio signals processed in the signal processing unit to a speaker and a CRT Internet module including a television module including an amplifying unit for outputting, an internet processing unit for performing internet access under the control of the control unit, a modem for converting information transmitted in connection with a telephone line, and a converting unit for converting the transmitted information into video or audio. In the Internet TV consisting of a module, the step of selecting the Internet mode during the TV program, the control unit detects a high signal input from the Internet processing unit to determine the file transfer state, and if the file transfer state Outputs a control signal to convert the Internet screen to a TV screen. It is.

When the file transfer is completed, a low signal is input from the internet controller to the controller, and the controller determines that the file transfer is completed, and simultaneously outputs a control signal to switch the TV screen back to the internet screen.

1 is a block diagram showing the structure of the Internet TV according to the present invention.

Figure 2 is a flow chart showing a method for automatically switching the screen of the Internet TV according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: TV module 11: control unit

12: IF unit 13: video / audio switching unit

15: signal processor 17: voice signal amplifier

20: mixing section 22: video signal amplifier

29: modem 30: Internet module

31: Internet processing unit 33: PROM

34: flash ROM

Hereinafter, with reference to the accompanying drawings will be described in detail the automatic screen switching method of the Internet TV according to the present invention.

1 is a block diagram showing the structure of a typical Internet TV. As shown in the figure, the Internet TV can be largely divided into the television module 10 and the Internet module 30.

The television module 10 includes a control unit 11, an IF unit 12 for amplifying a signal received through an antenna (not shown) under the control of the control unit 12 and detecting a broadcast signal, and the IF unit. A video / audio switching unit 13 for inputting a broadcast signal detected from the unit 12 and switching under the control of the control unit 11 to output a video signal or an audio signal, and according to the control of the control unit 11; A signal processor 15 for processing and outputting a video signal and an audio signal output from the video / audio switching unit 13, and an audio signal amplifier for amplifying the audio signal output from the signal processor 15; 17), a speaker 18 to which the voice signal amplified by the voice signal amplifier 17 is output as voice, the OSD (On Screen Display) signal and the signal processor 15 output from the controller 11; The mixing unit 20 is mixed with the video signal input from the, and The video signal amplifying unit 22 amplifies the mixed video signal in the summation unit 20, and the video signal amplified by the amplifying unit 22 is input to display an image and display the CRT (Cathode Ray Tube) 24. . Although not shown in the drawing, the television module 10 includes an EPROM connected to the control unit 11 and storing a program and data performed by the control unit 11.

In the Internet mode, the Internet module 30 receives a signal from the control unit 11 to operate a modem 29 to be connected to an Internet service company and to receive desired Internet information through the modem 29. And a PROM in which the stored basic program is executed by the Internet processor 31 when a control signal is inputted to the Internet processor 31 by storing a basic program such as Windows or DOS. A programmable ROM; 33, a web browser such as Netscape or an explorer, and a flash ROM (Flash ROM) 34 in which the Internet is executed by the Internet processor 31 in the Internet mode; VGA / TV image conversion unit 36 for converting a video signal of the VGA (Video Graphics Array) standard transmitted through the (29) to a television video signal, and digital audio signal transmitted through the modem 29 to analog voice As a signal It consists of a digital / analog voice conversion unit 37 for conversion. An output device such as a printer 41 is connected to the Internet processor 31 to output information transmitted from an external access network through a modem 29. In addition, a modem telephone is connected to the modem 29 to connect the Internet module 30 of the Internet TV with an external access network.

When the viewer selects the Internet mode, the telephone is dialed by the Internet processor 31, and the telephone is connected and the Internet is executed by the basic programs and applications stored in the PROM 33 and the flash ROM 34 at the same time. At this time, the screen is switched from the TV screen to the Internet screen. If the information desired by the viewer exists on the Internet web page, the Internet processor 31 outputs a high signal to the control unit 11 when it is selected and transmitted, and after the transmission is completed, the Internet processing unit 31 The low signal is output to the control unit 11. The control unit 11 recognizes the start and end of the file transfer by the high signal and the low signal. When the file transfer ends, the control unit 11 automatically switches the Internet screen to the TV screen. do.

Hereinafter, the automatic screen switching method according to the present invention with reference to FIG.

First, the Internet control unit of the Internet module 30 is controlled by the control unit 11 of the TV module 10 when the user operates the Internet mode selection button installed on the television or selects the Internet mode from the menu page of the TV. 31 operates the modem to call the Internet service company (S1, S2). When the telephone is connected to the Internet service company, the Internet processing unit 31 takes the basic programs and application programs stored in the PROM 33 and the flash ROM 34 and executes the Internet. At this time, the control unit 11 recognizes the Internet mode, thereby converting the TV screen to the Internet screen (S3).

Thereafter, when the user selects the desired information and transmits the file through the modem 29 (S4), the high signal is input from the Internet processing unit 31 to the control unit 11 so that the control unit 11 is in a current state. Recognizes that the file is in the file transfer state, and outputs a control signal to convert the Internet screen to a TV screen so that viewers can watch TV programs during this time (S5, S6).

At this time, the Internet processing unit 31 recognizes the size of the transmitted file. Therefore, the control unit 11 outputs a high signal only when the file size is larger than or equal to the set size and does not output a signal when the file size is smaller than or equal to the set size. This transfer file size can be set in the television menu page. The reason for setting the size of the transfer file is that when a small file size is transmitted, the transfer time is very short, so even in this case, switching the screen causes inconvenience to the user.

When the file transfer is finished (S7), a low signal is input from the Internet processing unit 31 to the control unit 11 so that the control unit 11 recognizes that the file transfer is completed and outputs a control signal to convert the TV screen to the Internet screen. Viewers can continue to enjoy the Internet.

As described above, when a file having a predetermined size or more is transmitted in the Internet mode, the Internet screen is automatically switched to the TV screen, so that the viewer can enjoy TV programs even during file transmission. In addition, even when the file transfer is terminated, the TV screen is automatically switched to the Internet screen, so that viewers can always enjoy the Internet and TV programs.

Claims (3)

A TV module including a control unit, a signal processing unit for processing a signal under control of the control unit, an amplifying unit for amplifying the video signal and audio signal processed by the signal processing unit and outputting the amplified video and audio signals to a speaker and a CRT; In the Internet TV consisting of an Internet module including an Internet processing unit for performing a connection, a modem for converting information transmitted in connection with a telephone line, and a conversion unit for converting the transmitted information into video or audio, Selecting an internet mode; Determining, by the controller, a file transfer state by detecting a signal input from the Internet processor; And And converting the Internet screen to a TV screen by the control unit outputting a control signal when the file is transmitted. The method of claim 1, wherein the screen is switched only when a file larger than a predetermined size is transmitted by outputting a signal from the Internet processor to the controller only when the transmitted file is larger than a predetermined size. The method of claim 1, Detecting, by the control unit, a signal input to the Internet processing unit and determining that file transfer is terminated; And And converting the TV screen to the Internet screen by outputting a control signal from the control unit when the file transfer is terminated.