KR0144974B1 - Television with paint funtion - Google Patents

Abstract

The present invention relates to a television having a paint function capable of drawing on a screen of a television receiver in a video apparatus. According to the present invention, in a television having a display means for displaying a television broadcast signal, input means for applying a command according to a paint mode for drawing a picture of a user's desired form and information on a picture of the user's desired form are stored. Paint image signal processing means for reading out data stored in the memory and converting the data stored in the memory into a video signal according to a command inputted by the memory and the input means, and an image signal output from the paint image signal processing means or an existing television video signal. A television apparatus having a paint function, characterized in that it comprises a selection means for selecting and outputting to a display means by a given mode selection signal, which can be converted into a video signal for a child and drawn on a screen of a television. Young TV by providing paint function There is an advantage that can be used as a drawing tool.

Description

TV with paint function

1 is a block diagram of a television having a paint function according to the present invention.

2 is a flowchart to help understand the present invention.

FIG. 2B is a subroutine of the paint mode operation shown in FIG. 2A.

3A to 3C are operation waveforms for the full screen clear operation of the television having the paint function shown in FIG.

4A to 4C are operating waveforms for the drawing operation of the television having the paint function shown in FIG.

5A to 5B are operation waveforms for the movement operation of the television having the paint function shown in FIG.

6A to 6C are operating waveforms for the erasing operation of the television having the paint function shown in FIG.

* Explanation of symbols for the main parts of the drawings

102: paint image signal processing means 103: processor

104: memory control means 106: synchronous signal generating means

109: selection means

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an imaging apparatus having a paint function in an imaging apparatus, and more particularly, to a television having a paint function capable of drawing on a screen of a television receiver.

In general, the function of a television is to use a display device that displays images by connecting to other household appliances such as watching a television broadcast signal of an existing channel and a video cassette recorder (VCR), compact disc graphic player (CDGP), or laser disc player (LDP) It was limited to one. However, in these functions, most of the programs are prepared for adults, and children have limitations such as limited program contents and broadcasting time. That is, the range of use of television is mainly composed of programs for adults, and this broadcast program has been used by viewing a video signal through a broadcast medium or by playing and displaying a program recorded on a recording medium.

Accordingly, an object of the present invention is to provide a television having a paint function capable of drawing a desired picture by displaying a predetermined picture on a screen of a television through an input means.

In order to achieve the above object, a television having a paint function according to the present invention is a television having a display means for displaying a television broadcast signal or a reproduced video signal, the input means for applying a command of a picture of a desired form by a user. ; Paint image signal processing means for converting a command by said input means into an image signal; A memory in which said paint image signal processing means stores data while converting a command into image means; And selecting means for selecting the video signal output from the paint image signal processing means and the existing television video signal by a mode selection signal given as an external input.

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

FIG. 1 is a block diagram of an apparatus to which the present invention is applied to a TV, and converts a picture of a desired form into a video signal according to input means 101 for applying a user's command and command information designated by the input means 101. FIG. Selects a normal mode and a paint mode by a paint image signal processing unit 102, a memory 105 for storing information on an applied command, and a mode selection signal as an external input Means 109 and display means 110 for displaying the selected video signal.

The paint image signal processing means (102) includes a processor (103) for interpreting and processing a command input from the input means (101), and memory control means (104) for controlling recording and reading of information in the memory (105). And a synchronization signal generating means 106 for generating a synchronization signal for synchronizing an image signal for display on the display means 110, and digital, green, and blue (hereinafter referred to as RGB) output from the memory control means 104. ) Generates a video signal in accordance with a synchronization signal generated by the synchronization signal generator 106 by a digital / analog converter 107 for converting a signal into an analog RGB signal and an analog RGB signal output from the digital / analog converter 107. Is composed of an RGB encoder 107.

FIG. 2A is a flowchart to help understand the present invention, and FIG. 2B is a subroutine of the paint operation shown in FIG. 2A. The operation of the present embodiment will be described by combining FIG. 1 with FIGS. 2A and 2B. .

When the power is turned on, the memory 105 is initialized (step 211). This ensures that the contents of the memory are maintained regardless of the power of paint mode and normal mode. Initialization of the memory 105 may also be performed by a CLEAR key mounted on the input means 101. A mode selection signal output from a system controller not shown in the drawing as an external input is applied to the selection means 109, and the selection means 109 selects whether to perform normal mode or paint mode operation by the mode selection signal. (Step 212). If the mode selection signal is the normal mode, the TV video signal output from the television signal processing circuit not shown in the figure is selected and displayed on the display means 110 (step 213). If the mode selection signal is the paint mode, an image signal corresponding to the desired picture input through the input means 101 is selected and displayed on the display means 109 (step 214). By the mode selection signal, the selection means 109 is free to switch to the new mode.

Here, the paint mode operation will be described in more detail.

When it is set to the paint mode operation by the mode selection signal which is an external input, it is determined whether a desired picture is input through the input means 101 (step 221). If there is no input, select mode again. If there is input, perform the corresponding operation.

The processor 103 interprets a signal input from the input means 101 and outputs a write signal WRITE, an address signal ADDRESS and a color signal COLOR. The memory control means 104 writes the output data of the processor 103 to the memory 105, reads it out of the memory 105, and reads out the data by means of the synchronization signal that is the output of the synchronization signal generating means 106. The signal is converted into a signal and output to the digital / analog converting means 107. The memory 105 is for a paint mode screen and its size varies depending on the configuration of the paint mode screen. The digital / analog converting means 107 converts the input digital RGB signal into an analog RGB signal, and converts the analog RGB signal input from the digital / analog converting means 107 in the RGB encoder 108 into the synchronization signal generating means 106. ) Generates a video signal suitable for display on the display means 110 in synchronization with the synchronization signal generated in step. In the paint mode, the image signal output from the RGB encoder 108 is selected by the selection means 109, so that the image signal in the paint mode is displayed on the display means 110.

On the other hand, the keys mounted on the input means 101 for the paint operation include a draw, clear, move, color control key. Here, the input means 101 may be a keypad, a mouse, a remote control, or the like.

The DRAW key decides whether to move a line or only a point when moving a point on the screen, and the CLEAR key commands to erase the entire screen, and the MOVE key. UP, DOWN, LEFT, RIGHT keys are used to move the pointer on the screen, and COLOR key selects one of the foreground / background colors (FOREGROUND / BACKGROUND). To choose.

The command signal designated by the input key mounted on the input means 101 is input to the processor 103, and outputs a write signal, an address signal ADDRESS and a color signal to the memory control means 104. do.

The write signal is output high except for the movement operation. When the write signal is HIGH, it means that the color by the color signal is drawn on the screen. When the write signal is LOW, it means that nothing is drawn on the screen.

The address signal is a signal that the processor 103 calculates and outputs the address of the memory corresponding to the point on the screen by inputting the UP, DOWN, LEFT, and RIGHT keys indicating the movement operation. to be.

The color signal is a signal representing the foreground (FOREGROUND) and the background (BACKGROUND) color, and if the color signal is HIGH, it represents the foreground (FOREGROUND) color, LOW indicates the background (BACKGROUND) color.

3A to 6C illustrate write signals output from the processor 103 according to four operations, namely, a full screen clear operation, a draw operation, a move operation, and an erase operation. The address signal and the color signal are shown.

In the full screen clear operation, an input signal of a clear key is input to the processor 103, and the processor writes a high write signal (Fig. 3a) as shown in Figs. 3B) and a color signal (FIG. 3C) indicating the background color. That is, the entire screen is cleared because the background color is written to the address representing all screens.

The drawing operation sends a drawing key to the input of the processor 103 so that the write signal (Fig. 4a) which is HIGH as shown in Figs. 4a to 4c and the address signal (Fig. 4b) indicating the position of the pointer are shown. ) And the foreground color signal (Fig. 4C) are output. That is, the selected color writes in the position indicated by the address.

The MOVE operation receives the input of keys indicating the position of the pointer and outputs a write signal (FIG. 5a) which is LOW as shown in FIGS. 5A to 5B to indicate the position of the pointer. The address signal (Fig. 5B) is outputted. It only moves the pointer to the location pointed to by the address.

In the erase operation, the processor 103 receives input of keys indicating the position of the pointer and write signal (FIG. 6a) which is HIGH as shown in FIGS. 6A to 6C and an address signal indicating the position of the pointer. A color signal (Fig. 6C) indicating a background (Fig. 6B) and a background is output. That is, since the address indicated by the address is written in the background color, the location corresponding to the address indicating the erase operation is deleted because the picture disappears and the background color appears.

As described above, the television having the paint function according to the present invention can use the TV as a children's drawing learning tool by providing a paint function that converts a desired picture into a video signal and draws it on the screen of the TV, especially for children. There is an advantage.

Claims (2)

A television comprising display means for displaying a television broadcast signal, comprising: input means for applying a command according to a paint mode for drawing a picture of a desired shape by a user; A memory in which information about a picture of a user desired form is stored; Paint image signal processing means for reading out data stored in the memory and converting the data stored in the memory into an image signal according to a command inputted by the input means; Selecting means for selecting an image signal outputted to the paint image signal processing means in the paint mode or an existing television video signal in the normal mode by means of a mode selection signal given as an external input and outputting it to the display means; Television apparatus having a paint function, characterized in that. 2. The apparatus of claim 1, wherein the paint image signal processing means comprises: synchronization signal generating means for generating a synchronization signal synchronized with the paint image signal displayed on display means for displaying the television broadcast signal; Memory control means for reading the signal stored in the memory by inputting the output of the processor and the synchronization signal generated by the synchronization signal generating means; A processor for generating control signals so that the memory control means can read data stored in the memory according to a command applied to the input means; Digital / analog conversion means for receiving a digital signal output from the memory control means as an input and converting the digital signal into an analog signal; And an encoder for modulating the analog signal output from the digital / analog conversion means into red, green, and blue video signals.