KR20030006107A - Device for displaying internet data to television monitor - Google Patents

Abstract

PURPOSE: An apparatus for displaying Internet data on a television screen is provided to more efficiently use the Internet by voluntarily selecting the wanted background on the Internet. CONSTITUTION: An apparatus for displaying Internet data on a television screen is composed of a personal computer(21) connected to an Internet communication network; a signal conversion and output part(23) embedded at the personal computer for converting a digital A/V signal provided through the Internet into a TV signal for wireless transmission; a receiver(25) receiving the TV signals for dividing into a video signal and an audio signal; a television receiver(27) receiving the video signal and the audio signal for outputting the signals through a screen and a speaker; and a remote control part(29) outputting a receiving mode of the television receiver and all kinds of selection key signals.

Description

Device for displaying internet data on television screen

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal converting apparatus, and more particularly, to an apparatus for displaying Internet data on a television screen that can monitor video / audio data provided from the Internet on a television receiver.

The rapid development of the computer industry heralded the birth of a new information transmission medium, one of which is the Internet, which is indispensable for people living in modern times because the use of the Internet can provide the information they want anytime and anywhere. It has become an information transmission medium.

Accordingly, the use of the Internet using a computer has become common in each home, and various forms of information provided through the Internet, such as collecting various information, on-line education, watching movies, and playing games are also diversified.

On the other hand, in the case of a TV that mainly receives the airwave broadcasting signals transmitted from broadcasting stations and outputs them through screens and speakers through various signal processing processes, users' needs are more diversified and the types of using information are also diversified. In addition to the inherent functions of the existing television, it is being developed in a form capable of performing various and complex functions.

For example, an external signal input terminal for introducing a video signal and an audio signal from an external device may be installed in a television, such as a video cassette recorder (VCR), a camcorder, a video accompaniment device (so-called "karaoke room"). The video signal and audio signal provided by the device can be monitored through the screen and the speaker, and thus the TV is being developed to perform a more complex function with one TV. In other words, by connecting the video accompaniment to the TV and displaying the lyrics information along with the song accompaniment, the karaoke function has also been expanded. The video accompaniment system includes an LD video accompaniment system using a laser disk player and a cassette disc graphic player. It can be divided into CD image accompaniment system using (Cassette Disk Graphic Player) and computer accompaniment system using memory.

In the computer accompaniment system using a memory, as shown in FIG. 1, when a specific song is selected by the command input unit 1 and an accompaniment start command is input, the control unit 2 receives the accompaniment signal generator 3, The text signal generation unit 4 and the video signal generation unit 5 are controlled to display an image, which is a background screen, along with accompaniment signals and lyrics information of a specified song on the screen of the television monitor 6. The voice signal input through the voice input unit 7 is synthesized with the accompaniment signal by the voice synthesizer 8 and then provided to the audio amplifier through the audio output terminal.

As described above, televisions are being developed in such a way that they can perform not only their own functions but also various other functions in combination, and it is expected that the expansion of the functions of the TVs will be further accelerated in the future.

However, in the case of computer monitors, large computer monitors of 20 inches or more are used in computer systems for CAD (Computer Aided Design), but products having sizes of 20 inches or less are mainstream. Therefore, when playing a simulation game or a game composed of complex screens on a personal computer equipped with a small computer monitor, the entertainment is lowered due to the small screen. In the case of watching a computer monitor, there is a problem that the screen of the computer monitor is small so that the effect of education cannot be enhanced.

In addition, in the case of television, in order to receive various video and audio signals from a VCR, a camcorder, or an image accompaniment device, it is possible to use a separate external signal input terminal, and most of all, despite the general use of the Internet through a computer in modern life. However, there are still many problems in realizing a more complex function that can satisfy various needs of users because there is no device for monitoring Internet data on TV. For example, when a video accompaniment device is connected to a television, there is a problem that a user cannot arbitrarily replace the background screen even though the background screen displayed on the television screen is tired.

The present invention has been made to solve the above-mentioned problems of the prior art, it is possible to monitor a variety of information through the television as a household appliance in the case of requiring a large screen when using a personal computer to use a television as a computer monitor The purpose is to make it.

Another object of the present invention is to connect a video accompaniment apparatus to a television, and to download a wallpaper or an image through a computer so that the user can display a desired wallpaper on the television screen.

An apparatus for displaying the Internet data of the present invention on a television screen for achieving the above object is a TV for wireless transmission of a personal computer connected to an Internet communication network and a digital A / V signal embedded in the personal computer and provided through the Internet. A signal conversion and output unit for converting and transmitting a signal, a receiver for receiving a TV signal transmitted from the signal conversion and output unit, separating the signal into a video signal and an audio signal, and outputting the video signal and the audio signal output from the receiver; And a remote control unit for receiving a TV receiver and outputting the same through a screen and a speaker, and a signal receiving mode and various selection keys of the television receiver.

1 is a block diagram of a general image accompaniment apparatus

2 is a block diagram of an apparatus for displaying Internet data of the present invention on a television screen;

3 is a partial detailed block diagram of FIG.

Explanation of symbols for main parts of the drawings

21: personal computer 23: signal conversion and output unit

23a: PCI bus 23b: controller

23c: frame memory section 23d: first D / A converter section

23e: 2nd D / A converter part 23f: video encoder part

23g: frequency conversion section 23h: first PLL section

23i: first signal synthesizing unit 23j: second signal synthesizing unit

23k: first signal transmitter 23l: first signal receiver

23m: third signal synthesizing section 23n: remote control signal output section

25 receiver 25a second signal receiver

25b: second PLL section 25c: fourth signal synthesizing section

25d: first IF converter 25e: second IF converter

27: TV receiver 29: Remote control unit

Hereinafter, an apparatus for displaying Internet data of the present invention on a television screen will be described in more detail with reference to the accompanying drawings.

FIG. 2 is a block diagram of a device for displaying Internet data of the present invention on a television screen, and FIG. 3 is a partial detailed block diagram of FIG. 2, which is largely incorporated into the personal computer 21 and the personal computer. Signal conversion and output unit 23 for converting and outputting the digital video / audio signal provided through the TV signal, and a receiver for receiving the TV signal output from the signal conversion and output unit after decoding and outputting it (25) And a television receiver 27 which receives a video signal and an audio signal from the receiver 25 and outputs it through a screen and a speaker, and determines a broadcast reception mode (Internet broadcast or airwave broadcast) of the television receiver. And a remote control unit 29 for outputting various key signals.

Here, the signal conversion and output unit 23 is embedded in the computer main body, and a PCI bus (23a) for transmitting a digital video (Audio) / Audio (Audio) signal provided through an Internet communication network, and the PCI bus ( A frame memory unit 23c for buffering the digital A / V signal input through 23a in units of frames under the control of the controller (CPU of the computer) 23b; and R, under the control of the controller 23b. A first D / A converter 23d for converting G and B digital video signals into an analog signal, and a second D for converting a digital audio signal into an analog signal under the control of the controller 23b. And a video encoder unit 23f for converting and outputting an analog video signal outputted from the first D / A converter unit 23d into an NTSC TV signal (luminance signal and color signal). , Analog audio scene output from the second D / A converter section 23e A frequency converter 23g for converting a call into an FM frequency and outputting the call; and a first PLL for outputting an oscillation frequency for wireless transmission of the A / V signal provided from the Internet to a frequency band corresponding to a channel of a set television. The first signal synthesizing unit 23i for synthesizing the TV signal output from the phase locked loop unit 23h, the video encoder unit 23f, and the oscillation frequency output from the first PLL unit 23h. ), A second signal synthesizing unit 23j for synthesizing the output frequency of the frequency converting unit 23g and the oscillation frequency output from the first PLL unit 23h, and the first and second signal synthesizing units ( A first signal transmitter 23k for amplifying a signal (Audio / Video) output from 23i, 23j to a predetermined level and transmitting the signal through an antenna, and a user's selection key output from the remote controller 29; A first signal receiver 23l for receiving an RF signal corresponding to the signal; Output of the third signal synthesizing unit 23m and the third signal synthesizing unit 23m for synthesizing the local oscillation frequency output from a true unit (not shown) and the RF signal received from the first signal receiving unit 23l. And a remote control signal output unit 23n which receives a signal and transmits a control signal corresponding thereto to the controller 23b.

On the other hand, the receiver 25 is a second signal receiver 25a for receiving the RF signal transmitted from the first signal transmitter 23k and the signal conversion and output unit 23 is encoded in the RF signal A second PLL section 25b for outputting an oscillation frequency for decoding a video signal and an audio signal, an oscillation frequency output from the second PLL section 25b, and an RF output from the second signal receiving section 25a A fourth signal synthesizer 25c for synthesizing the signals and a first IF modulator 25d for modulating a video signal at an intermediate frequency (IF) among the RF signals output from the fourth signal synthesizer 25c And a second IF signal modulator 25e for modulating an audio signal at an intermediate frequency, wherein the video signal and the audio signal converted and provided to the IF signal by the receiver 25 are provided in the television receiver 27. TV screen delivered to external input terminal It is output through the speaker.

For reference, although not shown in the drawing, the remote control unit 29 includes a key input unit for inputting various key signals, a signal synthesizer for synthesizing the selected key signal and a local oscillation frequency, and an output signal of the signal synthesizer. The remote control unit 29 basically transmits an RF signal, but transmits an infrared signal instead of an RF signal. The system can be applied mutatis mutandis.

The apparatus for displaying the Internet data of the present invention on a television receiver secures visual stability by displaying video and audio signals provided through an Internet communication network on a television that provides a large screen instead of a computer monitor having a small screen. In particular, when a television is used as an image accommodating device, the user's desire can be satisfied as much as possible by downloading the desired wallpaper by using the Internet instead of the fixed wallpaper.

The operation of the apparatus for displaying the Internet data of the present invention on a television receiver is described as follows.

First, in order to display a moving picture including an audio signal on a television screen, the user switches the display mode of the television to the PC mode. That is, when the remote control unit 29 transmits a channel setting signal for setting a channel of a high frequency band that does not overlap with the airwave broadcasting in the form of an RF signal, the first signal receiving unit 23l receives the third signal synthesizing unit ( 23m), and the third signal synthesizing unit 23m synthesizes the RF signal received from the first signal receiving unit 23l and the local oscillation frequency, and transmits it to the remote control signal output unit 23n. Accordingly, the remote control signal output unit 23n transmits a control signal corresponding to the key signal selected by the remote control unit 29 to the controller 23b, so that the controller 23b will be described in detail later. The PLL unit 23h is controlled to output an oscillation frequency so that a video signal and an audio signal can be wirelessly transmitted as a high frequency signal corresponding to the set channel.

When the display mode of the television is switched to the PC mode, the digital A / V signal carried on the PCI bus 23a by the control signal of the controller 23b is stored in the frame memory unit 23c on a frame basis, and the frame The digital video signal stored in the memory unit 23c is divided into R, G, and B signals, and then converted into an analog signal by the first D / A converter unit 23d. It is converted into an analog signal by the 2D / A converter section 23e.

Thereafter, the video encoder unit 23f receives the analog video signal output from the first D / A converter unit 23d, converts it into an NTSC TV signal (luminance signal and color signal), and outputs the second D / A. The analog audio signal output from the A converter section 23e is converted into an FM frequency by the frequency converter 23g.

As described above, the first signal synthesizing unit 23i is output from the first PLL unit 23i to transmit the TV signal output from the video encoder unit 23f to a high frequency band corresponding to a preset television channel. The second signal synthesizing unit 23j synthesizes the output frequency of the frequency converter 23g and the oscillation frequency output from the first PLL unit 23i, and then combines the oscillation frequency with the first signal transmitting unit 23k. )

The first signal transmitter 23k amplifies a high frequency video signal and an audio signal output from the first and second signal combiners 23i and 23j to a predetermined level for wireless transmission, and then transmits the same through an antenna. .

The analog A / V signal of the high frequency band transmitted from the first signal transmitter 23k is received by the second signal receiver 25a in the receiver 25 and amplified to a predetermined level, and the fourth signal synthesizer ( 25c) synthesizes the oscillation frequency output from the second PLL section 25b to decode the A / V signal output from the second signal receiver 25a.

Thereafter, the video signal among the output signals of the fourth signal synthesizing unit 25c is converted into an IF signal by the first IF converter 25d, and the audio signal is converted into an IF signal by the second IF converter 25e. After conversion, it is input to an external input terminal of the television receiver 27, and finally a video signal is output through a screen and an audio signal is output through a speaker.

As described above, the present invention displays movies or various moving images through the Internet on a larger TV screen instead of a small computer monitor. In particular, since a personal PC is placed on a desk, information provided from the Internet can be used. If you want to monitor through the screen is small, you can watch only in front of the monitor, but when using the present invention to display the Internet data on the TV screen, it is possible to watch in a more comfortable state and watching a long time like a movie Even if you can watch a long time without any inconvenience.

Meanwhile, in another embodiment of the present invention, a case in which a television is used as an image accompaniment device will be described.

In general, an image accompaniment device includes a plurality of songs that can be selected by the user, accompaniment corresponding to each song, and several background images. Such a background or song type and accompaniment are stored at the time of product release. Once set to, the user can't change it at will and watch the same background every time.

However, when using the present invention, the user can download a desired background screen through the Internet and display it on a television screen.

That is, the background image for the video accompaniment apparatus is searched by using the Internet communication network, and the desired background image is downloaded from among them, and the data of the background image downloaded from the Internet under the control of the controller is transferred to the PCI bus ( To 23a).

After the data on the PCI bus 23a is buffered in the frame memory unit 23c on a frame-by-frame basis, an encoding process for wireless transmission is performed. The background image provided from the Internet is provided for an image accommodating device. It may or may not, so it may not necessarily be that the background consists only of video signals. Therefore, when an audio signal is included in the background screen, the controller 23b controls such that various signal processing units related to the audio signal such as the second D / A converter 23e and the frequency converter 23g do not operate. .

Herein, it is assumed that the background screen is composed of only video signals. That is, data of a moving picture or a still picture relating to a background image stored in the frame memory section 23c is converted into an analog signal by the first D / A converter section 23d under the control of the controller 23b, and then the video encoder section ( The signal is converted into a TV signal at 23f) and output through the first signal transmitter 23k in accordance with a frequency band corresponding to a channel already set.

The RF signal output from the first signal transmitter 23k is received by the second signal receiver 25a in the receiver 25 and amplified to a predetermined level, and then a second PLL to decode the encoded high frequency video signal. The high frequency video signal synthesized with the oscillation frequency output from the unit 25b and output from the fourth signal synthesizing unit 25c is modulated to an intermediate frequency (IF) by the first IF converter 25d. Then, it is input to the external input terminal of the television receiver 27 and finally displayed on the television screen. In this case, although not shown in the drawing, when a user selects a specific song and an accompaniment start command is input, accompaniment corresponding to the selected song is output through the TV speaker, and the song lyrics accordingly are displayed along with the displayed background screen. Is displayed on the screen.

As described above, the apparatus for displaying the Internet data of the present invention on a television screen has the following advantages.

In the reality that movies and education using the Internet are alive, the A / V signal provided from the Internet is displayed on the TV screen instead of the small computer monitor, so that various information using the Internet can be monitored on a larger screen. Can be. Especially, if you need to watch for a long time like an internet movie, you can watch for a long time without visual inconvenience, so that you can fully enjoy the purpose of the Internet life, and if you use the Internet education, you can expect the effect of sufficient education. have.

In addition, when using an image accompaniment device, the user can arbitrarily select and display a desired background screen using the Internet instead of the background screen set at the beginning, thereby enabling more efficient use of the Internet and satisfying various needs of the user. A multifunctional TV can be implemented.

In particular, interactive and on-demand content (movies) can be transmitted through a remote control, which can be used as an Internet TV of VOD.

Claims (8)

A personal computer connected to an internet network; A signal conversion and output unit embedded in the personal computer and converting the digital A / V signal provided through the Internet into a TV signal for wireless transmission; A receiver which receives the TV signal transmitted from the signal conversion and output unit and separates it into a video signal and an audio signal and outputs the separated video signal; A television receiver for receiving a video signal and an audio signal output from the receiver and outputting the same through a screen and a speaker; And a remote control unit for outputting a reception mode of the television receiver and various selection key signals. The method of claim 1, wherein the signal conversion and output unit, A PCI bus for transmitting digital video and audio signals provided through the Internet; A D / A converter unit converting the digital video and audio signals transmitted through the PCI bus into analog signals; An encoder for encoding the video and audio signals converted into analog signals into TV signals for wireless transmission; And a signal transmitter for wirelessly transmitting the encoded TV signal. The method of claim 2, wherein the signal conversion and output unit, And a frame memory unit for storing the digital video signal on a frame basis. The method of claim 2, wherein the D / A converter unit, A first D / A converter unit converting the digital video signal stored in the frame memory unit into an analog signal; And a second D / A converter unit converting the digital audio signal transmitted through the PCI bus into an analog signal. The method of claim 2, wherein the encoding unit, A video encoder for converting and outputting an analog signal output from the first D / A converter into a TV signal for wireless transmission; A frequency converter converting the analog signal output from the second D / A converter into an FM frequency; A first PLL unit for outputting an oscillation frequency corresponding to a reference frequency so that a TV signal can be output in a frequency band corresponding to a channel set in the television receiver; A first signal synthesizing unit for synthesizing an oscillation frequency output from the first PLL unit and an output signal of the first D / A converter unit; And a second signal synthesizing unit for synthesizing the oscillation frequency output from the first PLL unit and the output signal of the second D / A converter unit. The method of claim 2, wherein the signal conversion and output unit, A first signal receiver for receiving an output signal from the remote controller; A third signal synthesizing unit synthesizing an output signal of the first signal receiving unit and a local oscillation frequency; And a remote control signal output unit for transmitting the output signal of the third signal synthesizing unit to the CPU of the personal computer. The apparatus of claim 6, wherein the signal output from the remote controller is one of an RF signal and an infrared signal. The method of claim 1, wherein the receiver, A second signal receiving unit for receiving a TV signal output from the signal conversion and output unit; A second PLL unit for outputting an oscillation frequency for decoding the TV signal; A fourth signal synthesizing unit synthesizing output signals of the second PLL unit and the second signal receiving unit; A first IF converting unit converting an audio signal into an IF signal among the output signals of the fourth signal synthesizing unit and outputting the audio signal to an external input terminal of a television receiver; And a second IF converter configured to convert the video signal from the output signal of the fourth signal synthesizer into an IF signal and output the video signal to another external input terminal of the television receiver. Device.