KR100393767B1 - Wireless transmission/reception apparatus for pc data - Google Patents

Abstract

The present invention relates to a wireless transmission and reception apparatus, and in particular, an object of the present invention is to enable smooth image display by controlling a function of a PC while performing two-way communication with a wireless transceiver in a touch screen panel. To this end, the present invention provides a PC (100) for internet access, application execution, media playback / recording, and the like by displaying a menu on a screen and selecting a user's menu to perform the functions of the PC 100. It is coupled to the liquid crystal touch screen panel 400 and the PC 100 to wirelessly transmit a control signal for controlling the and to display the image from the PC 100 on the screen and to reproduce the voice corresponding thereto. While performing wireless communication with the liquid crystal touch screen panel 400, the control signal of the liquid crystal touch screen panel 400 is received and transmitted to the PC 100, and thus the video signal and audio of the PC 100 are accordingly received. A wireless transceiver 200 which compresses a signal and transmits it wirelessly, and a monitor 300 which displays an image on a screen by inputting a video signal VGA from the wireless transceiver 200. .

Description

Wireless transceiver {WIRELESS TRANSMISSION / RECEPTION APPARATUS FOR PC DATA}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to wireless transmission and reception of video signals, and more particularly, to a wireless transmission and reception device for wirelessly transmitting, receiving and displaying an MPEG-2 digital video signal.

Recently, wireless communication technology has been applied to the multimedia field.

For example, a wireless keyboard or a wireless mouse is commercially available.

Therefore, the user can proceed with the desired work while moving the wireless keyboard or the wireless mouse to any place.

In this case, the PC receives the wireless signal transmitted from the wireless keyboard or the wireless mouse, processes the wireless signal according to the wireless communication protocol, restores the original video signal and the audio signal, and transmits the video signal to the monitor. To display a video screen and to transmit an audio signal to an audio device to reproduce a voice corresponding to the video screen.

However, the prior art has a problem in that the working environment is limited within the space where the PC and the monitor are located by applying an infrared communication method to a keyboard or a mouse.

In addition, since the screen size and caption size of the monitor are fixed in the related art, when the user is separated from the PC and the monitor by a certain distance or more, the user cannot clearly distinguish the images and captions displayed on the monitor, and thus the smooth operation is performed. There is a problem that can not be.

Accordingly, the present invention provides a wireless transmission / reception apparatus which enables a smooth image display without limitation in space by controlling a function of PC while performing bidirectional communication with a wireless transceiver in a liquid crystal touch screen panel in order to improve the conventional problem. The purpose is to provide.

That is, an object of the present invention is to transmit a signal for controlling a PC and to perform image display and audio reproduction processing in a liquid crystal touch screen panel combining a touch panel and a liquid crystal panel.

In addition, the present invention is to check the radio wave environment between the wireless transceiver and the liquid crystal touch screen panel, when the transmission and reception sensitivity of the wireless data occurs, the transmission rate is changed by mutual agreement, the screen according to the decrease in the transmission and reception sensitivity of the wireless data Another purpose is to prevent breaks.

1 is a block diagram of an apparatus for an embodiment of the present invention.

2 is a block diagram of a wireless transceiver in FIG.

3 is a block diagram of a touch screen panel in FIG.

4 is an exemplary view showing a signal format transmitted from the wireless transceiver of FIG.

Explanation of symbols on the main parts of the drawings

100: PC 200: wireless transceiver

210: Splitter 220: Algibi Decoder

230: preprocessor 240: MPEG encoder

250: analog-to-digital converter 260: audio encoder

270,420: CPU 280,410: Wireless LAN

290,490: interface 300: monitor

400: LCD touch screen panel 430: MPEG decoder

440: LCD driving unit 450: LCD (LCD)

460: touch screen 470: audio decoder

480: digital-to-analog converter 500: key pad

The present invention wirelessly transmits a control signal for controlling the function of the PC (PC) by the user's menu selection by displaying a menu on the screen to achieve the above object and accordingly the image from the PC (PC) A liquid crystal touch screen panel for displaying a voice on the screen and reproducing a corresponding voice, and performing a wireless communication between the PC and the liquid crystal touch screen panel, and transmitting a control signal from the liquid crystal touch screen panel to the PC. And a wireless transceiver for compressing a video signal and an audio signal from the PC and transmitting the compressed video signal to the LCD touch screen panel.

The wireless transceiver includes a splitter for extracting synchronization signals VD and HD while converting a video signal VGA from a PC to an RGB signal, and an RGB signal data output from the splitter. An RGB decoder that reduces the size of the RGD, a preprocessor that preprocesses the output signal from the RGB decoder and outputs it as a YUV or YCrCb signal, an MPEG encoder that compresses the video signal in the preprocessor to the MPEG standard, and An analog / digital converter for converting an audio signal from the PC into a digital signal, an audio encoder for compressing an output signal of the analog / digital converter to an MPEG standard, and a control signal from a liquid crystal touch screen panel to the PC And a CPI that multiplexes the output signals, the mouse signals, and the keyboard signals of the MPEG encoder and the audio encoder into a predetermined format. Characterized in that the wireless LAN for performing two-way wireless communication with the liquid crystal touch screen panel.

The LCD touch screen panel includes a wireless LAN for performing two-way wireless communication with a wireless transceiver, an MPEG decoder for restoring a video signal received and decoded by the wireless LAN to an original signal, and an output signal of the MPEG decoder. An LCD driver for displaying an LCD drive signal to display an image on a LCD screen, an audio decoder for restoring an audio signal received and decoded from the wireless LAN to an original digital voice signal, and a digital voice of the audio decoder. A digital / analog converter for converting a signal into an analog signal, a touch screen for recognizing a touch position on the LCD screen, and a signal received from the wireless LAN are separated and transmitted to the MPEG decoder and an audio decoder, CFI Euro to transmit the recognized coordinate position value to the outside through the wireless LAN It is characterized by the configuration.

Wireless communication between the wireless transceiver and the liquid crystal touch screen panel is characterized by applying the IEEE 802.11b protocol.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a block diagram of an apparatus for an embodiment of the present invention, as shown therein, displaying a PC (PC) 100 for Internet access, application execution, media playback / recording, and the like on a screen. A liquid crystal touch screen which wirelessly transmits a control signal for controlling the function of the PC 100 by selecting a user's menu and displays the image from the PC 100 on the screen, thereby reproducing a corresponding voice. It is coupled to the panel 400 and the PC 100 to perform a wireless communication with the liquid crystal touch screen panel 400 to receive a control signal from the liquid crystal touch screen panel 400 and transmit it to the PC 100. And a wireless transceiver 200 for compressing the video signal and the audio signal from the PC 100 and transmitting them wirelessly, and a video signal VGA from the wireless transceiver 200 as input. It consists of a monitor 300 for displaying an image.

As shown in the block diagram of FIG. 2, the wireless transceiver 200 distributes the video signal VGA from the PC 100 to the monitor 300 while providing an RGB signal and a synchronization signal ( Pre-processing the divider 210 for outputting the VD, HD), the RGB decoder 220 for reducing the resolution of the RGB signal outputted from the divider 210, and the output signal from the RGEBI decoder 220. A pre-processing unit 230 for outputting a YUV or YCrCb signal, an MPEG encoder 240 for compressing a video signal from the pre-processing unit 230 to an MPEG standard, and an audio signal from the PC 100 as a digital signal. An analog / digital converter 250 for converting the signal to an audio signal, an audio encoder 260 for compressing the output signal of the analog / digital converter 250 to an MPEG standard, and outputs of the MPEG encoder 240 and the audio encoder 260. Temporarily store signals, mouse signals and keyboard signals in memory (SDRAM) CPI 270 multiplexed with a mat, a wireless LAN 280 connected to the CPI 270 to perform two-way wireless communication with the LCD touch screen panel 300, the C100 and the CPI 270. ) And an interface unit 290 for interfacing between the PC 100 and the CPI 270 and the keyboard 110 and the mouse 120.

The CPI 270 is configured with a RISC type processor.

As shown in the block diagram of FIG. 3, the liquid crystal touch screen panel 400 includes a wireless LAN 410 for performing two-way wireless communication with the wireless transceiver 200, and received and decoded by the wireless LAN 410. MPEG decoder 430 for restoring the original video signal to the original signal, and an LCD driver 440 for outputting an LCD driving signal by the output signal of the MPEG decoder 430 to display an image on the screen of the LCD 450. And an audio decoder 470 which restores the decoded voice signal received by the wireless LAN 410 to the original digital voice signal, and converts the digital voice signal of the audio decoder 470 into an analog voice signal to convert a voice signal to a speaker. The digital / analog converter 480 for outputting to an audio device, a touch screen 460 for recognizing a touch position on the LCD 450, and a signal received from the wireless LAN 410 to separate the MPEGCPI 420 which transmits to the coder 430 and the audio decoder 470 and transmits the coordinate position value recognized by the touch screen 460 to the outside through the wireless LAN 410, and a keypad for menu selection ( And an interface unit 490 for interfacing between the keypad 500 and the CPI 420 and an interface between the CPI and an external keyboard and mouse.

The wireless LAN 410 may be integrated with the touch screen 460.

Referring to the operation and effect of the embodiment of the present invention configured as described above are as follows.

First, when only the PC 100 and the monitor 400 are turned on while the wireless transceiver 200 and the liquid crystal touch screen panel 400 are turned off, the PC 100 may have the same configuration as the PC. 100) executes an OS program to be in an operating state.

Accordingly, the user may perform a desired task in the manner normally used.

That is, when the PC 100 is turned on and the user inputs an arbitrary key with the keyboard 110 or clicks on any menu in the menu screen displayed on the monitor 400 with the mouse 120, the PC 100 is displayed. ) Processes the job by executing a job program according to a user's key input or selection menu, and outputs a video signal (VGA) according to the job to display a graphic image screen on the monitor 400. The sound module is driven to play a voice corresponding to the graphics image.

Then, when the power of the wireless transceiver 200 and the liquid crystal touch screen panel 400 is turned on while the PC 100 and the monitor 400 are turned on, the wireless transceiver 200 and the liquid crystal touch screen panel 400 are opposite sides. A process for determining whether wireless data transmission and reception is possible is performed.

That is, assuming that the wireless transceiver 200 transmits channel information preferentially, the wireless transceiver 200 transmits channel information (including a unique number) and then receives a response (unique number) from the liquid crystal touch screen panel 400. Receiving and analyzing the reception status information) and transmitting the analysis result to the PC 100 to display on the monitor 400 so that the user can know whether the user is in an operable state.

On the contrary, assuming that the liquid crystal touch screen panel 400 first transmits channel information, the liquid crystal touch screen panel 400 transmits channel information (including a unique number) and then receives a response from the wireless transceiver 200 ( Unique number, and reception status information), and the analysis result is displayed on the LCD 450 so that the user can know whether the user is in an operational state.

In addition, in the above description, a method of transmitting channel information from one side of the wireless transceiver 200 or the liquid crystal touch screen panel 400 and analyzing a response thereof to notify a user of an operation state is described. However, the wireless transceiver 200 and the liquid crystal are described. The touch screen panel 400 transmits channel information to each other, analyzes the response, and displays the information on the monitor 400 and the LCD 450 so that the user can easily recognize the operation state of the device.

In the above operation, the wireless transceiver 200 transmits test information preset to the PC 100 to be displayed on the monitor 400 or compresses the video and audio signals output from the PC 100. After that, the wireless signal is transmitted and displayed on the LCD 450 provided in the liquid crystal touch screen panel 400 so that the user can know the connection state and device operation state of the entire system.

Therefore, when it is determined that the entire system operates normally by the above process, the user may perform a desired task. First, a process of transmitting wireless data from the wireless transceiver 200 to the liquid crystal touch screen panel 400 will be described. Is as follows.

First, when a user views a menu screen displayed on the monitor 400 and inputs a corresponding key with the keyboard 110 for a desired operation or clicks the corresponding menu with the mouse 120, the PC 100 inputs a user's key or The task program according to the selection menu is executed to process the task, and the video signal (VGA) and the audio signal according to the task are output to the wireless transceiver 200.

In this case, the wireless transceiver 200 converts the video signal VGA from the PC 100 to the monitor 400 while converting the signal to the RGB signal RGB and synchronizing signals H and V. The algibi decoder 220 converts the algibi signal RGB and the synchronization signals H and V into an NTSC signal format.

Accordingly, when the preprocessor 230 converts the NTSC signal into a color difference signal (YCrCb or YUV), the MPEG processor 240 encodes the color difference signal to MPEG standard and inputs it to the CPI 270.

The wireless transceiver 200 converts the audio signal from the PC 100 into a digital signal by the analog / digital converter 250 so that the audio encoder 260 encodes the digital signal into the MPEG standard and inputs it to the CPI 270. do.

Accordingly, the CPI 270 temporarily stores a video signal / audio signal, a key input signal, and a mouse input signal compressed in the MPEG standard in a memory (SDRAM), and has a length of 256 bytes as illustrated in FIG. 4. When the compressed video / audio signal, real-time key input signal and mouse input signal are listed and multiplexed in a predetermined format, the wireless LAN unit 280 converts the multiplexed signal into the IEEE 802.11b protocol, which is a wireless LAN standard among MAC (Medium Access Protocol). After modulation, the signal is modulated into a wireless signal and amplified with a predetermined gain to be transmitted to the outside.

However, the reason for converting to the NTSC signal and MPEG encoding is that a transmission speed of 750 Mbps is required for the VGA signal for transmission of the image frame, but compressed data of about 4.3 Mbps is obtained when the NTSC signal is converted.

The MPEG audio compressed audio signal requires a full speed of 0.4 Mbps.

Therefore, a transmission speed of approximately 4.7 Mbps is required to transmit a video signal and an audio signal compressed in the MPEG standard after being converted to the NTSC method, thereby providing stable images.

Even when the key input and the mouse input are considered, the transmission speed of the key input and the mouse input is about 2 to 3 Kbps so that the video signal multiplexed with the video / audio / key input / mouse input can be transmitted at 5.2 to 5.4 Mbps. A stable image can be provided.

In addition, when a wireless signal is transmitted from the wireless transceiver 200 in the above-described operation, the LCD touch screen panel 400 receives the wireless signal and decodes the graphics signal to display the graphic video screen on the LCD 450. Alternatively, audio is played through an externally coupled audio device. This process is described below.

First, when the wireless LAN unit 410 receives a wireless signal from an air channel, amplifies the signal to a predetermined gain, and demodulates the CPI 420, the video signal, the audio signal, the key signal, and the mouse signal are separated through a demultiplexing process to separate the video signal. The audio signal is input to the MPEG decoder 430, the audio signal is input to the audio decoder 450, and the key signal and the mouse signal are input to the LCD driver 440.

Therefore, when the MPEG decoder 430 performs error correction on the compressed video signal and decodes the original video signal through signal processing according to the MPEG standard, the LCD driver 440 outputs the LCD driving signal according to the decoded video signal. The cursor and the mouse button are displayed at the corresponding position while outputting the graphic image screen on the LCD 450.

The audio decoder 470 restores the compressed audio signal separated from the CPI 420 to the original audio signal, and the digital-to-analog converter 480 converts the restored audio signal into an analog signal. The signal is amplified to a predetermined gain and then output to the earphone, headphone or audio device so that the user can hear a voice corresponding to the image displayed on the LCD 450.

On the other hand, when the graphics image screen is displayed on the LCD 450 by the above process, for example, the menu button, the main menu button, the left and right direction buttons, the menu selection button, the operation end button, etc. It can be configured to be displayed in a predetermined form, such as a portion, a corner portion in the diagonal direction.

Accordingly, the user touches and selects a menu corresponding to a desired operation among the menus displayed on the LCD 450 with a stylus pen or the like, for example, an Internet connection, a word processor, a mail transmission, a media device. Can be controlled, such as described below.

Here, the case where the user connects to the Internet will be described by way of example.

First, when a user presses a main menu button on the keypad 500, the CPI 420 controls the MPEG decoder 430 to display the main menu screen on the LCD 450.

In this case, when the user touches a desired menu among the main menus displayed on the LCD 450 with a stylus pen or the like, the touch screen 460 transmits the touched position coordinate value to the CPI 420 through the interface unit 490. The CPI 420 transmits the position coordinate value to the WLAN 410, modulates the IEEE 802. Ib standard, and transmits the location coordinate value to the public channel.

In this case, when the wireless transceiver 200 receives and demodulates a wireless signal transmitted from the liquid crystal touch screen panel 400 in the wireless LAN 280, the CPI 270 may recognize the demodulated signal by the PC 100. After the conversion to the PC 100 through the interface unit 290 is transmitted.

Accordingly, the PC 100 attempts to access the Internet through a modem or a dedicated line LAN.

Thereafter, when connected to the Internet site, the PC 100 transmits the web page screen of the access site to the wireless transceiver 200.

Accordingly, the wireless transceiver 200 converts the NTSC signal through the distributor 210, the Algibee decoder 220, the preprocessor 230, and the MPEG encoder 240, compresses the signal to the MPEG standard, and compresses the compressed signal. The CPI 270 is transmitted to the wireless LAN 280, modulated to the IEEE 802.11b wireless LAN standard, and then transmitted to the liquid crystal touch screen panel 400 through an air channel.

In this case, when the wireless LAN 410 receives and demodulates a wireless signal from the wireless transceiver 200, the CPI 420 transmits the demodulated signal to the MPEG decoder 430 and the MPEG decoder 430. By decoding the demodulated signal according to the MPEG standard and outputting it to the LCD driver 440, the initial page of the web site is displayed on the screen of the LCD 450.

Therefore, the user searches for desired information while viewing the web page screen displayed on the LCD 450.

Thereafter, when the user touches any information displayed on the web page screen, the touch screen 460 transmits the coordinate value to the CPI 420 through the interface unit 490.

Thereafter, the web page screen touched by the user is transmitted to the LCD touch screen panel 400 through the bidirectional wireless communication process between the LCD touch screen panel 400 and the wireless transceiver 200 as described above. By being displayed, the user can view the desired information.

For example, when the PC 100 executes the word processor operation, the user may connect the keyboard to the LCD touch screen panel 400 from the outside to proceed with the word operation.

First, whenever a user inputs a key, the CPI 420 is transmitted through the wireless LAN 410 in real time, and the wireless transceiver 200 receives and demodulates the transmitted signal and transmits the signal to the PC 100 in real time. do.

Accordingly, when the PC 100 outputs a video signal (VGA) according to a key input to the wireless transceiver 200, the wireless transceiver 200 compresses, modulates and transmits the video signal while displaying on the monitor 300. When the wireless LAN 410 receives and demodulates the signal transmitted by the wireless LAN 410, the CPI 420 outputs a video signal to the MPEG decoder 430 so that the user inputs the characters to the LCD 450. Will be displayed.

After that, when the word operation is terminated and the user inputs the 'save' key, the CPI 420 is transmitted through the wireless LAN 410 and the wireless transceiver 200 receives the transmitted signal and transmits the received signal to the PC 100. By doing so, the PC 100 stores the word where the current work is completed, as a recording medium, for example, a hardware or a floppy disk.

On the other hand, in controlling the functions of the PC 100 by selecting an arbitrary menu displayed on the liquid crystal touch screen panel 400 as described above, the user is one of a plurality of functions according to the program embedded in the PC 100. An arbitrary function (eg, a frequently used function, a preferred function, etc.) may be arbitrarily selected while viewing the screen on the liquid crystal touch screen panel 400, and the shortcut menu may be stored accordingly.

Accordingly, when the user selects an arbitrary menu among the shortcut menus displayed on the liquid crystal touch screen panel 400, the liquid crystal touch screen panel 400 transmits the control signal according to the corresponding menu wirelessly, and the wireless transceiver 200 may be used. Transmits the wireless signal to the PC 100 and multiplexes the video and audio signals from the PC 100 to transmit the wireless signal to the PC 100 to display the image according to the menu selection on the LCD touch screen panel 400. Play it.

As such, when the present invention is applied, the user may move the liquid crystal touch screen panel 400 to another space within a predetermined range from the space where the PC 100 is installed to perform a desired operation.

In this case, if it is determined that the screen is disconnected due to the radio wave environment, the wireless transceiver 200 and the liquid crystal touch screen panel 400 are sequentially adjusted to a preset transmission rate (for example, 11 Mbps). 5.5 Mbps 2 Mbps 1Mbps) to compensate for screen interruptions.

When the screen is broken, the LCD touch screen panel 400 requests retransmission of the data packet to the wireless transceiver 200. In this case, retransmission of the data packet at the wireless transceiver 200 causes the screen to be broken. The number of frames retransmitted from the video frame of the view is sequentially changed (for example, 1/16 8/1 1/4 1/2 1) data packets are transmitted in real time.

In addition, the present invention includes an interface circuit for coupling a device such as a DVD player, an external input, a TV, etc. in the wireless transceiver 200, and connects the output terminal of the interface circuit to the preprocessor 230 of the wireless transceiver 200. As a result, the user may be configured to transmit the video / audio in the corresponding device by using the IEEE 802.11b wireless LAN method and receive and decode the same in the LCD touch screen panel 400 so that the user can view it.

On the other hand, the present invention can configure a surveillance system by connecting an external surveillance camera to the PC 100 or the wireless transceiver 200.

In this case, when the user selects the menu of the surveillance mode displayed on the liquid crystal touch screen panel 400, the liquid crystal touch screen panel 400 transmits a control signal for driving the surveillance camera wirelessly, and the wireless transceiver 200 The wireless camera receives the control signal and transmits the signal to the PC 100 or the direct monitoring camera to drive the surveillance camera.

Accordingly, when the image captured by the surveillance camera is converted into a wireless signal by the wireless transceiver 200 and transmitted, the liquid crystal touch screen panel 400 receives the wireless signal and displays a captured image screen through an image processing process. Check the external environment.

In addition, the present invention provides a liquid crystal touch screen panel 400 if the mobile communication function is combined when the communication function such as the wireless LAN 410 is integrally combined with the touch screen 460 in the liquid crystal touch screen panel 400. To control the PC 100 in the home at a place far away from the home, such as office, workplace, etc. can proceed to the desired work.

In this case, the PC 100 is directly connected through the wireless communication network or the wireless transceiver 200 is connected to control the function of the PC 100.

As described in detail above, the present invention controls the functions of the PC in a wireless touch screen panel and wirelessly reproduces the image and audio of the PC on the LCD touch screen panel. It can be reduced, so that even a complicated screen can be played without interruption.

Claims (27)

Among the built-in functions of PC, the user creates and saves a shortcut menu created on the screen arbitrarily selected by the user, and sends a control signal wirelessly to control the function of PC by selecting the user's menu A touch screen panel displaying an image of the PC on the screen and reproducing a voice corresponding thereto; While performing wireless communication with the touch screen panel, the control signal of the touch screen panel is transmitted to the PC, and the video signal and audio signal of the PC are compressed to wirelessly multiplex the data packet. With a wireless transceiver to send out, And a monitor configured to receive a video signal (VGA) from the PC or a touch screen panel from the wireless transceiver and display an image on a screen . The wireless transceiver of claim 1, wherein the wireless communication between the wireless transceiver and the touch screen panel uses the IEEE 802.11b protocol. The wireless transceiver of claim 1, wherein the data packet of the wireless transceiver is configured to have a length of 256 bytes by multiplexing a compressed video signal and an audio signal of an MPEG standard, a real-time key input signal, and a mouse input signal. delete delete The apparatus of claim 1, wherein the touch screen panel notifies the wireless transceiver of determining that the screen is disconnected, and then sequentially changes at a predetermined transmission rate to compensate for the screen disconnection. The wireless transceiver of claim 6, wherein the touch screen panel is configured to request retransmission of a data packet to a wireless transceiver when a screen break is detected. 8. The wireless transmitting / receiving device according to claim 7, wherein the data packet retransmission is configured to match the frame transmission time while varying the number of frames from the video frame at the time when the screen break occurs. The apparatus of claim 1, wherein the touch screen panel has a communication function with a wireless communication network and is configured to remotely control a function of the PC. delete The wireless transceiver of claim 1, wherein the wireless transceiver A divider which transmits a video signal VGA from a PC to a monitor and extracts synchronization signals VD and HD while displaying an image on a screen or converting the signal into an RGB signal; Video decoding means for reducing the magnitude of an RGB signal, Video encoding means for compressing a video decoding signal for transmission to a touch screen panel; And an audio encoding means for compressing an audio signal for transmission to a touch screen panel . delete 13. The wireless transmitting / receiving device according to claim 12, wherein the video decoding means comprises means for converting an Algibi signal (RGB) into a color component signal (YUV or YCrCb). delete delete The wireless transceiver of claim 1, further comprising: multiplexing means for transmitting a control signal from a touch screen panel to the PC and processing output signals, mouse signals, and keyboard signals of video encoding means and audio encoding means into predetermined formats. Wireless transceiver characterized in that. delete The wireless transceiver as claimed in claim 1, further comprising an interface circuit for coupling an external device such as a DVD player, an external input, or a TV. delete The surveillance system configured by connecting an external surveillance camera to the apparatus of claim 1, wherein the touch screen panel wirelessly transmits a control signal for driving the surveillance camera when the user selects a surveillance mode, and images captured by the surveillance camera. Wireless reception device characterized in that it is configured to wirelessly receive and display the video screen. delete 21. The method of claim 1 or 20, wherein the touch screen panel is Video decoding means for restoring a video signal received and demodulated wirelessly to an original video signal; Audio decoding means for restoring the demodulated audio signal transmitted from the radio transceiver to the original speech signal; Display means for displaying a video screen according to a video signal transmitted from a wireless transceiver; And a touch screen means for recognizing a touch position of a menu displayed on the display . delete delete delete 25. The WTRU of claim 24 wherein the touch screen is configured to integrate a wireless LAN function. The touch screen panel of claim 1, wherein the touch screen panel separates a video / audio signal from a wireless signal, transmits the video / audio signal to the video decoding means and the audio decoder, and transmits the coordinate position value recognized by the touch screen through the wireless LAN. And a demultiplexing means for transmitting the apparatus.