JPH02302812A - Touch panel control system - Google Patents

Abstract

PURPOSE:To simplify the processing of a coordinate address and to make operation easy by controlling output data obtained at the time of executing a touch input to a touch panel by storage data in a table. CONSTITUTION:When an operator touches the touch panel, both the X and Y coordinates are detected and converted into data by a touch panel control part and the data are sent to a CPU 4. Virtual rectangular areas are set up on the touch panel 1 and a table for storing respective instructing data such as output codes, input interval time, the existence of repeat inputs, and the existence of error processing is prepared for each rectangular area. The output data to be obtained at the time of executing a touch input to the touch panel 1 are controlled by the data stored in the table. Consequently, it is unnecessary to execute the enormous calculation or control of coordinates and the touch panel 1 can be used as the sense of a keyboard.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a touch panel control method in a terminal device equipped with a touch panel for pointing [Prior Art] The conventional touch panel control method is based on the coordinates of a touch input point. In this method, the data is detected, converted into data by a touch panel control section, and outputted to the main control unit (CPU).

[Problem to be solved by the invention]

In the conventional touch panel control method described above, there are a huge number of types of coordinate addresses, which complicates the control of input data.In addition, (1) the input sensitivity is too sensitive, so if you accidentally touch it, even for a short time, (2) The time interval of input detection is constant, so the input tempo is uniform; (3) All inputs are repeatedly output, so only one data is input. There are drawbacks such as (4) the fact that if you keep accidentally touching the screen even when you want to do so, multiple pieces of data will be output repeatedly, and (4) the host application software must be aware of all errors when it comes to error handling.

[Means to solve the problem]

In the method of the present invention, a virtual rectangular area is set in advance on the touch panel, and each rectangular area has an output code,
It is characterized by comprising a table for storing instruction data such as input interval time, presence/absence of repeat input, and presence/absence of error handling, and controlling output data when touch input is made to the touch panel based on data stored in this table. shall be.

〔Example〕

The present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. Main control unit (CPU)4. Random access memory (
RAM)5. A refresh memory 6 for displaying graphics on the CRT 8 and a touch panel control section 2 are connected by a bus 3, and the touch panel 1 is superimposed on the display screen of the CRT 8. When you touch the touch panel 1, both the X and Y coordinates are detected and sent to the touch panel control unit 2.
The data is converted into data and sent to the CPU 4. As shown in FIG. 2, a virtual rectangular area is set on the touch panel 1, and for example, the lX, Y coordinates (Xi, Yl), (X2, X2) of two points in the rectangular area,
The output data set corresponding to the rectangular area is
It is stored in the touch key table 9 in M5. The output data includes control instruction data for the following four items.

1) Regarding the relaxation of human power sensitivity, the time interval from the first touch input to the state with the first input is defined on the touch key table 9 to control the input sensitivity.

(2> In order to deal with the fact that the input tempo is uniform,
In order to control the input interval, the input sensitivity described in the previous item (1) is made to feel more like keyboard input. In other words, as shown in Figure 3, if you touch and keep touching with repeat input enabled, the time it takes to enter the input state for the first time is tl, and the time it takes to enter the input state the second time is t2. , 11 and t
2 can be set. The settings can be initialized at startup, or
2. It is sufficient to store t2.

(3) Regarding the repeat input function, an area is provided in the touch key table 9 to determine whether repeat input is present or not.
If the area is valid, there will be repeat input, and if it is invalid, there will be no repeat input.

(4) Regarding error processing, a mode in which the host application does not need to be aware of input data errors caused by operator mistakes, that is, a mode in which it is completely free from error processing, is prepared as a control area in the touch key table 9.

〔Effect of the invention〕

As explained above, in the present invention, by first setting a virtual rectangular area for data input, there is no need to perform a huge amount of calculation and management of coordinates. Using,
Variable input sensitivity function, variable input interval function, with repeat/
By providing a function to switch between blanks and a function to release from error processing, the touch panel can be used like a keyboard, leading to improved performance of the man-machine interface.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a schematic diagram illustrating the correspondence between the input surface and the touch key table of the embodiment of the present invention, and Fig. 3 is a block diagram showing an embodiment of the present invention. FIG. 3 is a timing diagram illustrating input intervals in an embodiment of the invention.

1...Touch panel, 2...Touch panel control unit,
3... Bus, 4... Main control unit (CPU), 5
...Random access memory (RAM), 6...
Refresh memory, 7... Video control unit, 8...
Cathode ray tube display section (CR'T), 9...Touch key table.

Claims (1)

[Claims] A virtual rectangular area is set in advance on the touch panel, and a table is provided for each rectangular area to store instruction data such as output code, input interval time, presence or absence of repeat input, and presence or absence of error handling. . A touch panel control method, wherein output data at the time of touch input to the touch panel is controlled by data stored in this table.