KR100223590B1 - Multi-function tv - Google Patents

Abstract

The present invention relates to a multifunctional television, in which a video signal and a digital data are received and converted into a signal suitable for the television, and scaling and memory control for simultaneous multi-screen viewing are performed. Image processing means for outputting a signal to be displayed and a signal to be recorded on the VCR; And a control unit for controlling the image processing unit, inputting and driving the program, and compressing and restoring input and output image data, outputting a signal to perform a graphic function for screen display, A multifunction control means for controlling input and output of audio signals and video signals, controlling household appliances, scheduling each function for communication and image processing, and controlling the entire system; And a voice processing means for converting the voice signal input by the user into a digital signal and outputting the voice signal to the multifunctional control means, converting the digital voice signal inputted from the multifunctional control means into an analog signal, And a multifunctional television having the effect of conveniently adding a multimedia function to the functions of an existing television so as to make the user's life easier by a simple operation.

Description

Multifunctional television

The present invention relates to a multifunctional television, and more particularly, to a multifunctional television in which various multimedia functions are combined with the functions of an existing television.

Conventional conventional televisions have only a simple function of receiving a synthesized signal including video and audio signals converted into electric signals, which change with time, in a wireless or wired manner, and converting the received video signal into an optical image again for viewing.

However, at present, there is a tendency to build a multimedia environment in which the functions of many electronic devices are integrated into one device, and this invention has been proposed in such a trend.

In the multimedia environment, personal computers (PCs) are equipped with many additional functions, but they are relatively expensive compared to televisions, high technology of hardware / software, Booting time, and the limitation of users due to difficulties in use, require more development and time than television in terms of being distributed to the home.

On the other hand, in the case of television, high-definition, high-quality, and large-scale development are continuing, but it is not comparable to a personal computer, and therefore it is not recovering to various consumers' needs. In order to create a multimedia environment, It is necessary situation.

In this trend, PC (personal computer + TV) with the added function of the television to personal computer is being developed centering on Microsoft, Intel and IBM, and Sony and Philips (TV + PC) with personal computer function added to the television.

However, as described above, multimedia products that are user friendly are being developed between computer companies, consumer electronics companies, telecommunication companies, and game companies. However, considering actual infra and technology level, Is expected to be.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a multifunctional television with multimedia functions such as simple information of an individual on a television which the user is able to access or use,

1 is a block diagram showing a configuration of a multifunctional television according to an embodiment of the present invention.

2 is a block diagram illustrating a configuration of a PTV processor according to an embodiment of the present invention.

3 is a block diagram illustrating a configuration of an image processing processor according to an embodiment of the present invention.

As a means for achieving the above object,

The video signal and the digital data are received and converted into signals suitable for the television, and scaling and memory control for multi-picture simultaneous picture in picture (PIP) are performed. Image processing means for outputting a signal to be displayed on the VCR and a signal to be recorded on the VCR;

A control unit for controlling the image processing unit, inputting a program, porting and driving the program, compressing and restoring input and output image data, and performing a graphic function for screen display, A multifunction control means for controlling the memory, controlling input / output of audio signals and video signals, controlling household appliances, scheduling each function for communication and image processing, and controlling the entire system;

And a voice processing means for converting the voice signal input by the user into a digital signal and outputting the voice signal to the multifunctional control means, converting the digital voice signal inputted from the multifunctional control means into an analog signal, .

According to another aspect of the present invention as a means for achieving the above object,

A central processing unit for performing scheduling and overall control of each function;

A data codec for receiving, compressing, restoring and outputting data under the control of the central processing unit;

A graphics controller for controlling graphics of the input video signal under the control of the central processing unit;

A memory controller for controlling the used capacity allocation and timing under the control of the central processing unit to integrally manage a plurality of memories;

A system controller for assisting smooth control of the central processing unit;

And an interface unit for receiving a command of the user and connecting the communication control signal, the video signal, and the audio signal control signal to the outside according to the control of the system control unit.

Best Mode for Carrying Out the Invention The most preferred embodiment of the present invention, which can easily implement the present invention, will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the configuration of a multifunctional television according to an embodiment of the present invention.

1, the configuration of a multifunctional television according to an embodiment of the present invention includes:

An antenna (antenna) 11 for receiving a radio wave signal from the outside,

A double tuner 15 for receiving a radio wave signal from the antenna 11 and separating it into a voice signal and a video signal,

A CCD (Charge Coupled Device) 21 for converting a video signal input by a user into an electric signal and outputting the electric signal,

A DCP (Digital Camera Processor) 25 for converting a signal input from the CCD 21 into a digital signal, detecting a required signal from the digital signal and outputting the signal as a video signal,

A scan converter 33 that receives external computer data and converts progressive computer information into an interlaced signal suitable for a television and outputs the interlaced signal,

(PTV) processor 40 receives the video signal of the double tuner 15, the video signal of the DCP 25, and the interlaced scanning signal from the scanning converter 33, And performs a specific function such as scaling and memory control for simultaneous multi-screen viewing according to the control signal of the PTV processor 40, outputs a synchronizing signal for adjusting the deflection to the television, and displays it on a television or a computer An image processing processor 31 for outputting a digital video signal and a digital video signal to be recorded on the VCR,

A video encoder 35 for receiving a digital video signal from the image processing processor 31 and outputting a signal to be displayed on a computer, converting a signal to be displayed on the television and a signal to be recorded on the VCR into an analog signal, Wow,

An image output unit 110 receiving a synchronization signal for deflection adjustment from the image processing processor 31 and receiving an output of the video encoder 35 to display or store the image,

A display buffer 37 for temporarily storing data from the image processing processor 31 under the control of the image processing processor 31,

And controls the image processing processor 31 to process a signal input from the image processing processor 31 to perform a specific function such as compression / decompression, inputting a program, And outputs a signal to compress and restore the input and output image data and to perform a graphic function for screen display, controls the memory, inputs and outputs the audio signal and the video data, and outputs the appliance control signal A PTV processor 40 that schedules each function for communication and image processing and performs integrated control of the entire system,

Converts the voice signal input by the user into a digital signal, and outputs the digital signal to the PTV processor 40. The digital voice signal inputted from the PTV processor 40 is converted into an analog signal, Voice processing means (90) under control,

A voice input / output unit (100) for receiving a voice of a user and outputting the voice to the voice processing means (90) and outputting a voice signal inputted from the voice processing means (90)

A program ROM 51, which is controlled by the PTV processor 40 and outputs a program for driving the system to the PTV processor 40;

A flash memory (53) which temporarily stores personal information data from the PTV processor (40) under the control of the PTV processor (40) and does not lose information even when the power is turned off,

A dynamic random access memory (DRAM) 55 that stores information data from the PTV processor 40 under the control of the PTV processor 40 and serves as a main buffer when processing each function,

A modem 61 for transmitting and receiving image data and voice data information to and from the PTV processor 40 via a telephone line under the control of the PTV processor 40,

A telephone chip (65) for receiving and transmitting voice data to / from the PTV processor (40) through a telephone line under the control of the PTV processor (40)

Which is a IEEE 1394 system which receives a control signal from the PTV processor 40 and outputs a control signal for controlling an external appliance, receives a status signal from an external appliance, and outputs the status signal to the PTV processor 40, An interface 70,

And an audio amplifier 80 amplifying and outputting the voice input from the double tuner 15 and having a sourround function.

Here, the antenna 11 and the double tuner 15 constitute the reception demultiplexing means 10.

The CCD 21 and the DCP 25 constitute a video input means 20.

The video processor 31, the scan converter 33, the video encoder 35 and the buffer 37 constitute an image processing means 30.

The program ROM 51, the flash memory 53, and the DRAM 55 constitute a storage means 50. The modem (61) and the telephone chip (65) constitute a communication means (60).

The voice processing means 90 comprises an audio controller and an audio codec.

The voice input / output unit 100 includes a microphone and a speaker for a speaker phone.

The video output unit 110 can use a television CRT or a computer monitor or a VCR.

As the multifunctional control means, a PTV processor (Personal Television Processor) 40 is used.

2 is a block diagram illustrating a configuration of a PTV processor according to an embodiment of the present invention.

2, the configuration of the PTV processor 40 according to the embodiment of the present invention includes:

A central processing unit (CPU) 401 responsible for scheduling and overall control of each function,

A data CODEC 402 for receiving, compressing, restoring, and outputting data under the control of the central processing unit 401;

A graphic control unit 403 for controlling the graphics of the input video signal under the control of the central processing unit 401 and processing the menu screen and the screen guidance in 2D graphics,

A memory controller 404 for controlling the allocation and timing of the used capacity to the memory of the storage unit 50 under the control of the central processing unit 401,

A system control unit 405 for assisting smooth control of the central processing unit 401,

A user interface 406 for transferring a user's command to the system controller 405,

A communication interface 407 for transferring communication data between the system control unit 405 and the communication unit 60 under the control of the system control unit 405,

An image interface 408 for transferring image data between the system control unit 405 and the image processing processor 31 under the control of the system control unit 405,

A voice interface 409 for transferring voice data between the system control unit 405 and the voice processing unit 90 under the control of the system control unit 405,

And a home appliance interface 410 for transferring a control signal between the system controller 405 and the home appliance interface 70 under the control of the system controller 405.

3 is a block diagram illustrating a configuration of an image processing processor according to an embodiment of the present invention.

As shown in Fig. 3, the configuration of the image processing processor 31 according to the embodiment of the present invention is similar to that of Fig.

An auto gain control unit AGC for outputting each composite video signal inputted from the double tuner 15 so as to be separated into a luminance signal Y, a color signal C and a synchronizing signal Sync, , 301, 302)

An analog-to-digital converter (ADC) 303, 304 for converting the analog signals input from the automatic gain control units 301, 302 into digital signals and outputting the digital signals,

A synchronization deflection adjusting unit 305 for separating a horizontal synchronizing signal and a vertical synchronizing signal for deflection adjustment from the synchronizing signals inputted from the analog / digital converting units 303 and 304 and outputting the separated horizontal synchronizing signal and the vertical synchronizing signal to the image output unit 110,

A YC processor (306, 307) for separating a video signal input from the DCP (25) and the analog / digital converters (303, 304) into a luminance signal and a color signal,

A switch 308 for switching a signal input from the YC processor 306 or 307 according to a control signal,

A scaler 309 for adjusting the signal outputted from the switch 308 at a desired magnification and outputting the signal,

And controls the switch 308 and outputs the signal input from the scan converter 33, the switch 308 and the scaler 309 to the multi-screen processing And temporarily stores the data in the buffer 37 and outputs the temporarily stored data to the video encoder 35. [

First, an operation according to an embodiment of the present invention with the above-described configuration will be described with reference to FIG.

When power is applied, the antenna 11 receives a radio wave signal from the outside. The double tuner 15 receives the radio wave signal received by the antenna 11 and separates the received radio wave into a video signal and a voice signal. A CCD (Charge Coupled Device) 21 converts a video signal input by a user into an electric signal and outputs the electric signal. A DCP (Digital Camera Processor) 25 converts a signal input from the CCD 21 into a digital signal, and detects and outputs a required video signal again. The scan converter 33 receives external computer data and converts the progressive computer information into an interlaced signal suitable for the television and outputs the interlaced signal. The image processing processor 31 receives signals from the double tuner 15, the DCP 25 and the scan converter 33 and outputs the data to the PTV processor 40. The image processing processor 31 multiplexes the signals according to the control signal of the PTV processor 40, Scales for Picture In Picture (PIP), outputs a digital video signal, and controls a buffer 37 for display. The image processing processor 31 outputs a synchronization signal for deflection adjustment to the image output unit 110. The buffer 37 is a temporary storage memory for exchanging data with the image processing processor 31 and for a PIP function. The video encoder 35 receives a digital video signal from the image processing processor 31 and converts the digital video signal into an analog signal and selectively outputs a composite video baseband signal (CVBS) (RGB) to be displayed on the VCR or a signal (YC) to be recorded on the VCR. Therefore, the video encoder 35 can be connected to a computer monitor or a printer, etc. in addition to the television CRT as the video output unit 110. The video encoder 35 may be connected to a VCR.

The PTV processor 40, which is the core of the present invention, receives a user's command through a remote controller or the like, processes a signal inputted from the image processing processor 31 to perform a specific function, inputs a program, Compresses and restores the image data to be input and output in a still image format conforming to, for example, JPEG (Joint Photographic Expert Group), outputs a signal to perform a graphic function for screen display, Controls input and output of voice data, schedules each function for communication and image processing, and controls the entire system. The voice processing means 90 composed of an audio controller and an audio codec is controlled by the PTV processor 40 and receives voice through a microphone for speaker phone of an external telephone which is a voice input and output unit 100 and receives voice through a voice input / 100), and sends and receives voice data to and from the PTV processor 40 The program ROM 51 stores a program for driving the PTV processor 40. When the system is turned on, the PTV processor 40 outputs a program for operating the system. The flash memory (53) exchanges personal information data with the PTV processor (40), and information is not lost even when the power is turned off. A DRAM (DRAM) 55 is a system memory, which exchanges information data with the PTV processor 40 and serves as a main buffer when processing each function. The modem 61 transmits and receives image data, voice data, and other information to and from the PTV processor 40 via a telephone line. The telephone chip (Chip 65) transmits / receives voice data to / from the PTV processor 40 to / from the outside through a telephone line. Meanwhile, the embodiment of the present invention uses a modem with a transmission speed of 28.8 Kbps, but the external transmission means (telephone line) and the transmission speed can be changed without departing from the gist of the present invention.

Also, in this embodiment, the control signal is received from the PTV processor 40 by using the IEEE 1394 (70) system as the home appliance interface 70, and a control signal for controlling the external home appliances is output. And outputs the status signal to the PTV processor 40. However, the interface with home appliances is not limited to the IEEE 1394 (70) scheme. For example, a USB (Universal Serial Bus) method may be used. The audio amplifier 80 amplifies and outputs the voice input from the double tuner 15 and has a sourround function.

Also, in this embodiment, the CCD 21 and the DCP 25 are used as the video input means 20, but a VTR and a video CD player can also be used.

Next, the internal operation of the PTV processor 40 will be described in more detail with reference to FIG.

The central processing unit (CPU) 401 uses a RISC chip or the like and performs scheduling and overall control of each function when the multi-function television performs a complex function. In particular, when accessing the Internet, the multi- .

The data codec 402 for receiving, compressing, restoring, and outputting data under the control of the central processing unit 401 performs encoding and decoding using the JPEG method. The data codec 402 can perform software processing in the central processing unit 401 have.

The graphic control unit 403 under the control of the central processing unit 401 displays the system configuration and operation method guidance in 2D, and displays a broadcast menu in response to an input of a remote controller or the like. In addition, it displays Internet Searching Graphic Data on the screen and performs OSD (On Screen Display) for TV. The OSD font ROM is placed externally, for example, in the program ROM 51.

The memory control unit 404 under the control of the central processing unit 401 controls the use capacity allocation and the timing for performing unified memory management on the memory of the storage unit 50. [

The system control unit 405 that assists smooth control of the central processing unit 401 receives various interfaces 406, 407, 408, 409 and 410 connected to the outside of the PTV processor 40 in accordance with a command of the central processing unit 401, .

The user interface 406 under the control of the system control unit 405 receives a command of the user through a remote controller or the like.

The communication interface 407 under the control of the system control unit 405 transfers video signals, audio signals, and other various signals between the system control unit 405 and the communication unit 60.

The image interface 408 under the control of the system control unit 405 transfers image data between the system control unit 405 and the image processing processor 31.

The voice interface 409 under the control of the system control unit 405 transfers voice data between the system control unit 405 and the voice processing unit 90. [

The home appliance interface 410 under the control of the system controller 405 transfers home appliance control data between the system controller 405 and the home appliance interface 70.

Here, the interface units 406, 407, 408, 409 and 410 may be directly controlled by the central processing unit 401. [ In other words, it is possible to change the circuit within a range not departing from the gist of the invention of the PTV processor 40.

3, the internal operation of the image processing processor 31 for receiving an input video signal and converting it to a television signal and performing a multi-screen function will be described in more detail.

Two auto gain control units AGC 301 and 302 control the level of each composite video signal input from the double tuner 15 to generate a luminance signal Y, a color signal C, (Sync).

The two analog-to-digital conversion units (ADCs) 303 and 304 convert the analog signals input from the auto gain control units 301 and 302 into digital signals, respectively, and output the digital signals.

The synchronous deflection adjusting unit 305 separates the horizontal synchronizing signal and the vertical synchronizing signal for the deflection adjustment from the synchronizing signals inputted from the analog-to-digital converting units 303 and 304, And outputs it to the deflection meter.

The two YC processors 306 and 307 separate the video signals input from the analog / digital converters 303 and 304 into the luminance signal and the color signal, respectively, and output them. Also, the video signal input from the DCP 25 is input to one of the two YC processors 306 and 307 and separated into a luminance signal and a color signal. The YC processors 306 and 307 also prevent image deterioration due to a delay in the circuit.

The switch 308 switches the video signals input from the YC processors 306 and 307 to the scaler 309 and the PIP memory controller 310 under the control of the PIP memory controller 310 and outputs the switched video signals.

The scaler 309 adjusts the signal output from the switch 308 to a desired magnification (magnitude) and outputs it.

The PIP memory control unit 310 inputs and outputs data under the control of the PTV processor 40 and controls the switch 308 and outputs the unscaled video signal and the scaler input from the switch 308 or the scan converter 33, 309, and temporarily stores the scaled video signal in the buffer 37, and outputs the scaled video signal to the video encoder 35 again.

On the other hand, the above-described image processing processor 31 can change the circuit without departing from the gist of the invention.

The following functions are performed using each component operating as described above.

1) The image data inputted from the image input means 20 is captured through the image processing processor 31 of the image processing means 30 and is again captured through the video encoder 35 to the image output unit 110 It is displayed on the monitor or stored on the VCR. The image data is sent to the PTV processor 40, compressed by the JPEG method, and stored in the flash memory 53. (aka, electronic album function)

2) While talking with the other party via the telephone line via the voice input / output unit 100, the voice processing unit 90, the PTV processor 40 and the telephone chip 65, And transmits it to the PTV processor 40 via the image processing processor 31 of the image processing means 30, compresses it, and transmits it through the modem 61 to the monitor of the talker. The PTV processor 40 restores the compressed video image of the other party received via the modem 61 and outputs the compressed video image to the video encoder 35 And the like on the monitor or the like of the video output unit 110. At this time, the image processing processor 31 processes the image by the PIP so that the person and the user's image can be simultaneously displayed on the monitor.

3) The television screen input from the receiving / separating means 10, the computer image input through the scan converter 33, and other input data are captured by the image processing processor 31, compressed by the PTV processor 40, 53). If necessary, the image is displayed on the background of the cathode ray tube of the image output unit 110 or the monitor after the buffer processing through the image processing processor 31. (aka background screen selecting function)

4) When a desired information site is selected and displayed at the time of watching a multifunctional television or at bedtime according to a user's command, the PTV processor 40, to which a web browser is ported, And downloads the data to the storage means 53 and 55. And may be stored in a VCR which is one of the video output units 110 through the video processing unit 30. (aka Internet access function)

5) The video information inputted from the video input means 20 is displayed on the video output unit 110 through the video processing means 30 and recorded in the VCR. At the same time, the voice input through the audio input / output unit 100 Record. This function serves as a recording camera for records of various meetings or for observation.

6) The PTV processor 40 processes the video data input from the video input means 20, the audio data input from the audio input / output unit 100 and the existing data stored in the storage means 50, ), Transmits them through the modem 61, and transmits / receives them in the absence of the user. That is, video, audio, and background music can be transmitted and received together with a video image by including a voice message in the background music. The image data is also transmitted to and received from a relative multifunctional television and facsimile (aka image mail function).

7) According to the control of the PTV processor 40, the user controls the other home appliances in the home from the outside through the home appliances interface IEEE1394 70. (aka home appliance control function)

As described above, in the embodiment of the present invention, a multifunctional television having the effect of conveniently adding the multimedia function to the function of the existing television to simplify the user's life is provided.

Claims (13)

The video signal and the digital data are received and converted into signals suitable for the television, and scaling and memory control for multi-picture simultaneous picture in picture (PIP) are performed. Image processing means for outputting a signal to be displayed on the VCR and a signal to be recorded on the VCR; A control unit for controlling the image processing unit, inputting a program, porting and driving the program, compressing and restoring input and output image data, and performing a graphic function for screen display, A multifunction control means for controlling the memory, controlling input / output of audio signals and video signals, controlling household appliances, scheduling each function for communication and image processing, and controlling the entire system; And a voice processing means for converting the voice signal input by the user into a digital signal and outputting the voice signal to the multifunctional control means, converting the digital voice signal inputted from the multifunctional control means into an analog signal, A multifunctional television. The image processing apparatus according to claim 1, A scan converter 33 that receives external computer data and converts progressive computer information into an interlaced signal suitable for a television and outputs the interlaced signal; The digital video signal to be displayed on the television or the computer in accordance with the control signal of the multifunctional control means and the digital video signal to be recorded on the VCR An image processing processor 31 for outputting a digital image signal to be output, A video encoder 35 for receiving a digital video signal from the image processing processor 31 and outputting a signal to be displayed on a computer, converting a signal to be displayed on the television and a signal to be recorded on the VCR into an analog signal, And a display buffer (37) for temporarily storing data from the image processing processor (31) under the control of the image processing processor (31). The image forming apparatus according to claim 1, wherein the multi- A central processing unit (CPU) 401 responsible for scheduling and overall control of each function, A data CODEC 402 for receiving, compressing, restoring, and outputting data under the control of the central processing unit 401; A graphic control unit 403 for controlling the graphics of the input video signal under the control of the central processing unit 401 and processing the menu screen and the screen guidance in 2D graphics, A memory control unit 404 which controls the allocation and timing of the used capacity to the memory according to the control of the central processing unit 401 to integrally manage the memory, A system control unit 405 for assisting smooth control of the central processing unit 401, A user interface 406 for transferring a user's command to the system controller 405, A communication interface 407 for transferring communication data between the outside and the system control unit 405 under the control of the system control unit 405, An image interface 408 for transferring image data between the outside and the system control unit 405 under the control of the system control unit 405, A voice interface 409 for transmitting voice data between the outside and the system control unit 405 under the control of the system control unit 405, And a home appliance interface (410) for transmitting a control signal between the outside and the system controller (405) under the control of the system controller (405). The radio communication system according to claim 1 or 2, further comprising: an antenna (11) for receiving a radio wave signal from the outside; Further comprising receiving and separating means (10) comprising a double tuner (15) for receiving a radio wave signal from the antenna (11) and separating the received signal into a video signal and a video signal and outputting the video signal to the video processing means television. The image pickup apparatus according to claim 1 or 2, further comprising: a CCD (21) for converting a signal input by the user into an electric signal and outputting the electric signal; And a DCP (25) for converting a signal input from the CCD (21) into a digital signal and detecting a necessary signal from the digital signal and outputting the signal to the image processing means Multifunctional television. The multifunctional television according to claim 1 or 2, further comprising an image output unit (110) receiving an output of the image processing unit and displaying or storing the image. 4. The multifunctional apparatus according to claim 1 or 3, further comprising: a program ROM (51) which is controlled by the multifunctional control means and outputs a program for driving the system to the multifunctional control means; A flash memory (53), under the control of the multifunctional control means, for storing personal information data from the multifunctional control means; Further comprising storage means (50) which is controlled by the multifunctional control means and comprises a diram (55) which stores information data from the multifunctional control means and serves as a main buffer in processing by each function. The multifunctional apparatus according to claim 1 or 3, further comprising: a modem (61) for receiving and transmitting video data and audio data information to / from the multifunctional control means through a telephone line under control of the multifunctional control means; Further comprising communication means (60) controlled by said multifunction control means and composed of a telephone chip (65) for transmitting / receiving voice data to / from said multifunctional control means to / from outside through a telephone line. The multifunctional apparatus according to any one of claims 1 to 3, further comprising: a control signal receiving unit for receiving a control signal from the multifunctional control unit and outputting a control signal for controlling an external appliance, receiving a status signal from an external appliance, Further comprising a home appliance interface (70). The multifunctional television according to claim 1, further comprising: a voice input / output unit (100) for receiving a voice of a user, outputting the voice to the voice processing means, and outputting the voice signal inputted from the voice processing means. 5. The multifunctional television according to claim 4, further comprising an audio amplifier (80) amplifying and outputting the audio signal input from the double tuner (15) and having a sourround function. The image processing apparatus according to claim 2, wherein the image processing processor (31) An auto gain control unit (AGC) 301 and 302 for outputting each input composite video signal so as to be separated into a luminance signal Y, a color signal C, and a synchronization signal Sync, An analog-to-digital converter (ADC) 303, 304 for converting the analog signals input from the automatic gain control units 301, 302 into digital signals and outputting the digital signals, A synchronization deflection adjusting unit 305 for separately outputting a horizontal synchronizing signal and a vertical synchronizing signal for deflection adjustment in the synchronizing signal inputted from the analog / digital converting units 303 and 304, A YC processor (306, 307) for separating a video signal input from the outside and a video signal input from the A / D converter (303, 304) into a luminance signal and a color signal, A switch 308 for switching a signal input from the YC processor 306 or 307 according to a control signal, A scaler 309 for adjusting the signal outputted from the switch 308 at a desired magnification and outputting the signal, Controls the switch 308, processes a signal input from the outside, a signal input from the switch 308 and the scaler 309, and temporarily stores the signal in an external buffer , And a PIP memory control unit (310) for outputting again. A central processing unit for performing scheduling and overall control of each function; A data codec for receiving, compressing, restoring and outputting data under the control of the central processing unit; A graphics controller for controlling graphics of the input video signal under the control of the central processing unit; A memory controller for controlling the used capacity allocation and timing under the control of the central processing unit to integrally manage a plurality of memories; A system controller for assisting smooth control of the central processing unit; And an interface unit which receives a command of a user and connects a communication, a video signal, and a voice signal home appliance control signal to the outside according to the control of the system control unit.