KR100455055B1 - Method for storing data of mulitinput HD monitor - Google Patents

Abstract

PURPOSE: A data storing method of a multiple input HD(High Definition) monitor is provided to store common data to a single memory and store different data according to modes, respectively, to separate memories, thereby capable of controlling data when changing a mode. CONSTITUTION: A mode control block(110) receives and displays various types of image signals under the control of a microcomputer(10). An NTSC, BS, Video Geo data block(130) stores NTSC BS, Video Geo data. An NTSC, BS, Video color data block(130) stores NTSC BS, Video color data. An audio data block(150) stores data relating to an audio signal. An HD, RGS, YPBRr color data block(160) stores NTSC BS, Video color signal data. An HD, RGS, YPBRr Geo data block(170) stores HD, RGS, YPBRr color signal data. A PC data block(180) stores data relating to a computer output signal. A common data block(120) stores common data among data relating to the blocks. Among data of each input mode, common data are stored to the common data block as single data. When data corresponding each mode differ, data are stored to the data block corresponding to each mode, respectively.

Description

Method for storing data of mulitinput HD monitor}

The present invention relates to an HDTV receiver (hereinafter referred to as an HD monitor) that can process various types of input video signals. A storage method of multiple input high definition monitor that stores data for each mode in HD monitor that can receive and display HDTV signal, NTSC signal, satellite broadcasting signal and computer output signal It is about.

In general, the HD monitor is developed as an award-winning device for HDTV, and is a next-generation display device having a difference in signal processing and configuration from a general NTSC television receiver. In general, the difference between NTSC broadcasting and HDTV broadcasting is that HDTV broadcasting has more than twice as many scanning lines and more than twice the vertical and horizontal resolution. The horizontal resolution is determined by the luminance signal band of the image, which is 4.2M in the NTSC system, whereas in the HDTV system, it is more than 5 times because it is 22 MHz, but the scanning line is more than 2 times that much, and the resolution is slightly higher than 2 times. Becomes

In the frequency band, the NTSC system transmits the frequency multiplexed signal to be included in the 6 MHz channel band, but in the HDTV system, the luminance signal and the color signal RY, BY The band compression is performed using time division multiplexing by dividing all the time and time compression.

Regarding the aspect ratio, the NTSC normal mode displays a 4: 3 screen and the HDTV mode displays a 16: 9 screen.

In a conventional HDTV receiver, since its use is generally used as a single use, a method of storing data such as color and geo for an HDTV single mode generally uses a single data storage method.

On the other hand, in the HD monitor for receiving and displaying the HDTV broadcast as described above, a multi-input HD monitor capable of receiving and displaying HDTV signals, NTSC signals, and computer output signals has been developed to have a multimedia function.

In the multi-input HD monitor that can receive and process the video signals of various methods as described above, the data according to each input method is different according to the change of the input mode, so the data is stored in each mode in a single mode. I'm using a separate method.

However, the above-described prior art has a problem in that it is inconvenient for storing and adjusting data by storing a large amount of data in a single mode according to various input modes, and requires a large amount of memory because data for all modes must be stored respectively. There is this.

The present invention is to solve the problems of the prior art, an object of the present invention is to store the common data without difference according to the mode of the video signal of various methods input to the HD monitor as one single data, The present invention provides a data storage method of a multi-input HD monitor in which only data having a characteristic according to each mode is stored in a separate memory.

1 is a schematic block diagram of a multi-input HD monitor.

2 is a block diagram of an implementation of the present invention.

<Description of the symbols for the main parts of the drawings>

1: antenna 2: HDTV tuner

3: demodulation part 4: filter part

5: Channel compensator 6: Error correction

7: decoding unit 8: image output unit

9: HD display device 10: Microcomputer

20: deflection processing unit 30: external input unit

110: mode control block 120: common data block

130: NTSC, BS, VIDEO Geo Data Block

140: NTSC, BS, VIDEO color data block

150: Audio data block

160: HD RGB, YPBPr color data block

170: HD RGB, YPBPr Geo data block

180: PC data block

Hereinafter, with reference to the accompanying drawings, the description of the embodiments of the present invention will be described in detail. First, the overall configuration of the HD monitor will be briefly described to help understanding of the present invention.

1 is a block diagram of a general configuration of an HD monitor. Referring to FIG. 1, an HD monitor is configured to tune only a signal of a channel desired by a user among an antenna 1 for receiving an HDTV signal, an NTSC signal, and a satellite broadcast signal, and an HDTV signal received through the antenna 1. HDTV tuner unit 2, demodulator 3 for demodulating HDTV signals applied from HDTV tuner unit 2, and filters for removing NTSC interference signals from signals demodulated and applied from demodulator 3 A unit 4, a channel compensator 5 for compensating for linear channel distortion from the HDTV signal output through the filter unit 4, an HDTV signal output from the channel compensator 5, and a pre-stored reference HDTV. After comparing the signals, if there is an error, the error correction unit 6 corrects the error, and the HDTV signal in the compressed state by decoding the HDTV signal corrected through the error correction unit 6 from the original HDTV color signal and luminance. A decoding unit (7) for separating the signal, and the An image output unit 8 for outputting the original HDTV signal output from the coding unit 7 to the HD display device, a deflection processing unit 20 for vertical and horizontal deflection processing of the HD display device, a computer output signal, and the like. An external input unit 30 for inputting an external input signal of the microcomputer 10 and a microcomputer 10 for detecting a synchronization signal from the HDTV tuner unit 2 and applying a control signal to the deflection processing unit 20.

First, when the high-frequency signal of the HDTV is received through the antenna 1 when the HDTV signal is received through the antenna 1, only the HDTV signal of the channel desired by the user is selected by the HDTV tuner 2. The demodulator 3 demodulates to the baseband level state. In addition, the HDTV signal demodulated through the demodulator 3 is removed from the NTSC interference signal by the filter unit 4, linear channel distortion such as tilt (TILT) and ghost (GHOST) by the channel compensation unit (5) (DISTORTION) is compensated and output to the error correcting unit 6, and the error correcting unit 6 compares the compensated HDTV signal type with a pre-stored reference HDTV signal type and corrects an error according to the result.

The compressed HDTV signal corrected and output from the error correcting unit 6 is applied to the decoding unit 7 to be restored to the original HDTV luminance signal and color signal, and the HD display device 9 is transmitted through the image output unit 8. ) Is displayed.

Hereinafter, an embodiment of the present invention will be described with reference to the configuration of the above-described HD monitor and the drawings of an embodiment of the present invention of FIG. 2.

A mode control block 110 under the control of the microcomputer 10; NTSC, BS, Video Geo data block 130 for storing NTSC, BS, Video Geo data; NTSC, BS, Video Geo color data block 140 for storing data on color signals of NTSC, BS, Video; An audio data block 150 for storing data for an audio signal; An HD RGB and YPBPrcolor data block 160 for storing data on color signals of HD RGB and YPBPr; An HD RGB, YPBPr Geo data block 170 that stores HD RGB, YPBPrGeo data; PC data block 180 for storing data related to the computer output signal, and common data block 120 for storing common data among the data for each block.

The memory required for HD monitor data storage is the memory part that adjusts and saves data in the most basic state when it is shipped from the factory, and the user data storage memory part that controls the data of the system from time to time by the user, and three parts of temporary memory. Consists of

In the HD monitor that can input and process various video signals such as the above HDTV signal, NTSC signal, BS signal, playback video signal and computer output signal, the data corresponding to the mode of the changed video signal is changed. Should be adjusted. In this case, if data for each mode is stored in a single mode, it is inconvenient when storing and adjusting for each mode. Therefore, in the present invention, data such as audio data, etc., among the data of each mode do not differ from mode to mode, and are stored as common data A single adjustment can be applied to all input modes.

As described above, in the multi-input HD monitor capable of receiving and processing various types of video signals, the common data for each mode may be stored as separate single data, and different data for each mode may be separately stored. By reducing the memory usage of the system, it is easy to adjust the user's data when switching modes.

Claims (2)

A mode control block 110 controlled by the microcomputer 10 to receive and display various types of video signals; NTSC, BS, Video Geo data block 130 for storing NTSC, BS, Video Geo data; NTSC, BS, Video Geo color data block 140 for storing data on color signals of NTSC, BS, Video; An audio data block 150 for storing data for an audio signal; An HD RGB and YPBPr color data block 160 for storing data on color signals of HD RGS and YPBRr; An HD RGB, YPBPr Geo data block 170 for storing HD RGS and YPBRr Geo data; A multi-input HD which comprises a PC data block 180 for storing data related to a computer output signal and a common data block 120 for storing common data among the data for each block. In the data storage method of the monitor, A common data storage process of storing data common to each other among data in each input mode as single data in the common data block 120; When the data according to each mode is different from each other, the data storage method of the multi-input HD monitor, characterized in that the data storage process for each mode to store the data in the data block for each mode. The method of claim 1, wherein the data storage process for each mode is color data and Geo data of NTSC signal, BS signal, Video signal, HD RGB and YPBPrG signal.

Images