JPH02183296A - Display controller - Google Patents

Abstract

PURPOSE:To eliminate a feeling of physical disorder in adjusting operation by detecting an adjustment quantity for an object of adjustment with double accuracy, and moving character fonts in a column direction by a half as large as the width of each character font and displaying the adjustment quantity in an odd stage of the adjustment quantity. CONSTITUTION:The display adjustment quantity is detected with double accuracy and when the size of the detected adjustment quantity stage is an odd stage, one column of character fonts is moved, character fonts which are reduced in width to half are added and substituted at both end parts of the character font column to display the adjustment quantity including the character font of small width. Therefore, the display state of the adjustment quantity can be increased by the character font of 1/2 width added and substituted at both end parts to display the adjustment quantity with high accuracy. Consequently, such trouble that a display does not change soon even when adjusting operation is done and a feeling of physical disorder causes hindrance to operation is eliminated.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Field of Application) The present invention is a display that displays the adjustment amount of sound spacing, brightness, etc. on the screen of a preview receiver or the like! , II control equipment.

(Prior art) 'is fi!' is displayed on the screen of a television receiver, etc.
As a method of displaying the amount of adjustment for the subject of adjustment, such as brightness and brightness, there is a display method as shown in FIG.

In other words, the entire adjustment range is shown in a certain color as a horizontal bar, and the current adjustment amount is displayed in a different color from the color that indicates the adjustment range, overlapping the adjustment range. There is.

Conventionally, in order to realize the above method, the entire adjustment range is expressed by displaying a predetermined number (for example, 10) of rectangular character fonts horizontally in columns and in a certain color, as shown in Figure 5. There is a technology that changes and displays only the range showing the current adjustment amount in a different color. If a normal character generator is used, the display color can be set for each character font, so the above technique can easily realize research display control. In the example of FIG. 5, the entire adjustment range is displayed with an accuracy of 10g2.

By the way, in a normal character generator, the display color is set for each character font as described above, so if it is necessary to display the adjustment amount in multiple stages with high precision, more character fonts should be arranged. There was a need. However, the number of fonts that can be arranged on the screen at one time is limited by the operating frequency characteristics of the character generator and the capacity of the display memory within the character generator. Conventional character generators used in television receivers and the like have a limit of displaying the entire adjustment range with an accuracy of 10 to 20 steps.

On the other hand, the adjustment precision that can actually be adjusted by adjustment 4- of a keyboard or the like is often 6 bits (=64 steps) or more. Therefore, the actual key of 3 to 5 levels! ! ! The display showing the adjustment amount barely changes by one step in response to a change in the opening.
It was necessary to improve display accuracy and make the display respond faster.

(Problem to be Solved by the Invention) As described above, with the conventional technology, the adjustment range rest can only be displayed with low accuracy, which slows down the display response to the actual adjustment, causing a sense of discomfort in the adjustment operation itself. There was a problem.

Therefore, the present invention is intended to eliminate the above problems.
Using a regular character generator that is cost-effective, the adjustment range can be adjusted to multiple levels. ! It is an object of the present invention to provide a display control device that can display images at a cost of ¥8,000, and as a result, adjust operations that do not feel strange and can be improved.

[Structure of the Invention] (Means for Solving the Problems) The display control device of the present invention is the same as the conventional one (using a certain character generator, rectangular characters) by arranging A tones in a line and displaying the adjustment range on the screen. Display and repaint the color of the character font as many times as necessary according to the current adjustment amount that is input manually.
In that case, the adjustment td is detected with an accuracy of 248, and when the detected adjustment amount step is an odd number step C, the character font in the - column is moved, and the width is added to both ends of the character font row. A control means is provided to add a character font reduced to 1/2, convert it to P1, and display the adjustment amount including the character font with a smaller width.

(Function) According to the present invention, the display step of adjustment &1 can be doubled by the amount of character fonts with a width of 1/2 that are added to and replaced at both ends, making it possible to display the amount of adjustment with high precision. As a result, it is possible to solve the conventional problem in which the display does not change easily even after adjustment operations, giving a sense of discomfort and hindering operation.

(Example) The present invention will be explained below based on the example shown in the drawings.

FIG. 1 is a block diagram showing a display control device according to an embodiment of the present invention.

In this figure, a control unit 1 composed of a microcomputer controls a specific adjustment target (
For example, by operating an adjustment key (for example, volume), character font data, 7428 color data, and font position data are given to the character signal generator 3 to control the displayed character signal output from the character signal generator 3. be. NaJ
3. Is the control unit 1 ROM, RAM, CPU (central processing unit)? It consists of 3. As display character signals, character font number 0 (including character signals) for the three colors R, G, and B is output. On the other hand, a video signal from a television tuner etc. is detected and amplified by a video signal processing circuit 4.
After undergoing processing such as color demodulation, it is demodulated into RlG and B video signals and sent to the RGB switch 5. RGB switch 5
is the one that performs the function of switching between the video (R, G, B signals from the No. 2 processing circuit 4 and the R, G, B display character signals from the character signal generator 3; character signal Y). Generator 3
If there is a request from CR (not shown), the display character signal may be used as a screen signal instead of the R, G, B video signals.
It is supplied to display means such as T.

Further, the signal detected by the video signal processing circuit 4 is input to a synchronization detector 6, where a synchronization signal is detected. This synchronization signal is supplied to the control unit 1 and the character signal generator 3 as a signal (position signal) providing a reference for displaying the display character signal on the screen. The control unit 11: is based on its position 15'';i and the operation signal from the adjustment key operation.
According to the processing program within the unit, character font data, font color data, and font position data are created and supplied to the character generator 3.

FIG. 2 shows an example of control by the display control device. This control example is made possible by the control algorithm of the control unit shown in FIG.

As shown in Figure 2 (a), the conventional control method had a display accuracy of 10 levels consisting of 10 character fonts, but on the tree sub side, the display is controlled with an accuracy of 20 levels of adjustment. This shows that.

The figure shows that the current adjustment M is an adjustment of 9/20 of the entire adjustment range (the current adjustment intervals are indicated by diagonal lines). Actually, HP indicates one type of font position data, and indicates the position from the left edge of the screen. This sea urchin 2
As shown in Figure 2(b), the 0-level precision is obtained as character font data, in addition to the base rectangular font FTB, the font FTL placed at both the left and right ends of the display area, FTR (length is 1/2 of font FTB
This is to perform display using .

FIG. 3 shows the control algorithm of the control 211 =l unit shown in FIG. Let be the display data of the adjustment module. key 1
! ! ! Display data of hanging ☆ several ゛＾DJOr” (However,
ADJDT = 1 to 20) and 1, perform the calculation "[Al)JOT/2]" as in step S1, and change the font color to the column number corresponding to that value.
Converts to a color that indicates the current adjustment amount. However, the variable [ADJ
DT'/2] takes a value of 0 to 10. Next, as shown in step S2, the operation "^DJDT NOD 2"< In other words, only when the variable ΔDJDT is an odd number), as shown in step S3, the adjustment range is set to the same width as the width of the font with a small width (FTL, FTR in the figure).
Move only HP to the right. As a result, both ends of the font row shift, but font FTL is placed at the 'lj end to correct the shift, and font F T B is replaced with font FTR at the right end. The replacement of these fonts is carried out every 11 times while checking the position signal output from the synchronization detector 5 and at the timing when no other character signal is being output from the character generator 3. It is possible to eliminate jitter in displayed characters. Note that in step S2 ^DJOT NO
When the value of D 2 ” is O (lIII, variable expression DJDT
is an even number), step S1 is executed without executing step S3.
The display state after execution is maintained.

[Effects of the Invention] As described above, according to the present invention, it is possible to display the adjustment intervals in multiple stages with high accuracy, and since the adjustment amount that almost corresponds to the adjustment amount is displayed, the operation becomes easier. This eliminates the sense of discomfort and improves operability.Also, since it can be achieved using a familiar, low-cost character generator, it is also useful from a sutra poetic point of view.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a display control device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing an example of control by the device in FIG. 1, and FIG. 3 is a control diagram of the control unit in FIG. 1. FIGS. 4 and 5 are explanatory diagrams illustrating conventional display formats. 1... Control unit, 2... Keyboard, 3...
Character generator, 6...Synchronization detector. Figure 3 Entire / 7 Silk Period Figure 4 Figure 5

Claims (1)

[Claims] By key-inputting the amount of adjustment for a specific adjustment target, each data of character font, font color, and font position is created and supplied to the character generation means, thereby displaying the entire adjustment range on both sides of the display means. is displayed in a predetermined color by arranging a predetermined number of rectangular character fonts in a row,
The current amount of adjustment is displayed in a display control device that changes the color of the character font string to another color according to the amount of adjustment.
The adjustment amount entered by the key is detected with an accuracy twice as high as the predetermined number of the character font string, and when the step between the adjustments detected with that accuracy is an even number step, the rectangular character font string is detected. It can be used as is to display the adjustment amount, and when the detected adjustment amount is an odd number step, the entire character font string indicating the adjustment range is divided into 1/1/2 of the width of each character font.
2 in the column direction, added and replaced character fonts with 1/2 the width to both ends of the character font column that was moved as a result, the entire adjustment range remained stationary, and the width was reduced to 1/2. A display control device comprising a control means for displaying adjustment amounts including character fonts.