JPH07104936A - Key detecting method for touch panel - Google Patents

Abstract

PURPOSE:To omit an unnecessary collation processing, and to reduce program amounts by preparing a table in which input key information to be displayed on a display is related with area information in which the input key information is displayed, and identifying the input key by referring to the table when the area information is outputted from a touch panel. CONSTITUTION:A CPU 100 reads the table indicating the correspondence of the area information of a set block to each area number in a memory card 104, and transfers it to a RAM 102, and prepares the area information corresponding to coordinates. Next, the CPU 100 outputs display data through a RAM 106 to a display area equivalent to the coordinate area corresponding to the table on a display 105A, and operates key display. Then, the touch processing for detecting each key on a touch panel 105B is started, and when the press of the key is detected, whether or not the pressed key is matched with any each area number is judged by referring to the table. When it is matched, the logical number of the block in which the area number is included is transferred.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key detecting method for a touch panel device comprising a display for displaying each input key and a touch panel arranged on the display for outputting operation information of each input key.

[0002]

2. Description of the Related Art A touch panel device of this type is provided with a display unit for displaying input keys corresponding to m × n areas and a display unit arranged on the display unit when each input key is operated. It is composed of a touch panel that outputs information on the area to be edited. In such a touch panel device, a plurality of input keys and their display areas may be treated as one collective block. That is, when a memory card is inserted into the main body device accommodating the touch panel device and each area of the touch panel device is treated as the aggregate block by the application program of the memory card, the software detects the pressing of the input key in the aggregate block as follows. It is done like this.

That is, when the pressing of the collective block is detected by executing the application program, first, the numbers of the individual areas in the collective block are registered in the driver which is the main unit. Then, the driver detects pressing of each input key of the touch panel device which is hardware, or when the pressing of the input key is detected, if this is the input key of the registered area, the area corresponding to this input key is detected. Send the number back to the AP. The application program inputs this area number and judges again whether this area number exists in the area numbers being registered. If it exists, it is converted to the number corresponding to the above aggregate block and acquired as a logical number. I am trying to do it.

[0004]

By the way, in the application program, when the returned area number is input, it is checked again whether or not this area number exists in the above-mentioned aggregate block and the corresponding aggregate block is recognized. Therefore, the processing time for collation increases as the amount of programs increases and the aggregate block to be collated increases,
This causes a problem such as a delay in the key input detection process.

Therefore, according to the present invention, when a plurality of input keys and their display areas are treated as one collective block in the touch panel device, it is unnecessary in the application program for determining whether or not the pressed input key exists in the collective block. It is an object of the present invention to omit the collation process to reduce the program amount thereof and to shorten the processing time of key input detection.

[0006]

In order to solve such a problem, the present invention provides a display for displaying input keys corresponding to m × n areas and m × n arranged on the display. In a touch panel device configured to output input area information (area number) out of n areas and identifying an input key based on the area information from the touch panel, input key information to be displayed on a display. This is a method in which a table is created in which the area information for displaying the input keys is associated with each other, and when the area information is output from the touch panel, the input keys are identified by referring to the table.

[0007]

When the touch panel is operated and area information is output from the touch panel, the input key corresponding to the area information is identified on the table. As a result, for example, when the plurality of input keys and their display areas are treated as one set block by executing the application program, the application program omits the re-verification processing of the input keys detected as pressed, and therefore the program amount And the processing time in the key detection processing is shortened.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a terminal device to which a key detection method for a touch panel device according to the present invention is applied. In the figure, the terminal device includes a CPU 100 and a ROM.
101, RAM 102, memory card interface 1
03, memory card 104, touch panel device 105,
It is composed of the VRAM 106. The touch panel device 105 has a display unit 105A having display regions divided into m × n and input keys corresponding to the display regions disposed on the display unit 105A and divided into m × n. It is composed of the touch panel 105B.

Next, FIG. 2 is a diagram showing the configuration of software and hardware when detecting each input key of the touch panel 105 in this terminal device. In the figure, the software is composed of an application unit 200 and a driver unit 210, of which the application unit 200 consisting of an application program is arranged in the memory card 104 in FIG.
Executed by. Further, the driver unit 210 is the ROM 1
It is arranged in the program in 01 and is realized by the CPU 100 executing this program by interrupt processing. The touch panel device 106 described above corresponds to the hardware 220.

Next, FIG. 4 is a diagram showing the configuration of the touch panel device 106. The display device 105A constituting the touch panel device 106 is divided into m × n display regions as described above, and the touch panel 105B arranged on the display device 105A is also divided into the same number. Each input key is assigned. Here, when any one of the areas on the touch panel 105B is pressed, this is detected by the driver unit 210 shown in FIG. 2, and the corresponding one of the numbers “00” to “mn” corresponding to each area is pressed. The area number of the key is transmitted to the application unit 200.

In such a terminal device, various displays can be displayed on the touch panel device 106, depending on the application program of the inserted memory card 104. That is, for example, as shown in FIG. 5, continuous aggregate blocks of areas of the display 105A and the touch panel 106B (for example, area numbers “22” to “2”).
4 ”,“ blocks consisting of “32” to “34” ”) can be treated as one aggregate block, and key detection and its display can be performed on this aggregate block. In such a case, in the application unit 200 shown in FIG. 2, first, in order to detect the key of the aggregated block, each area number which is a physical number for the driver unit 210 and these are aggregated into one aggregated block. Logical numbers A and are given.

In this case, the driver unit 210 sequentially searches the input keys of the touch panel 105B in the constant time interrupt process. If any one of the input keys is pressed, it is checked whether the area number of the pressed input key matches the number given by the application unit 200. If they match, the designation is continued. After confirming the pressing of the input key in the interrupt process of the number of times, the above-mentioned logical number A is returned to the application unit 200. As a result, the application unit 200 can immediately recognize the logical number A when the input key of any area in the above-mentioned collective block is pressed. In this way, in the case of performing the key detection of the aggregate block composed of the respective areas, the application unit 200 has the driver unit 21.
It is only necessary to compare the logical number given to 0 with the logical number returned from the driver unit 210, and thus the pressed input key can be immediately detected.

Next, FIG. 3 shows the driver unit 210 (that is, the CPU 100) that performs key detection on the aggregate block when each area corresponding to each key arranged on the touch panel 105B is treated as one aggregate block. It is a flow chart which shows operation. As described above, when the key of the aggregate block is detected by executing the application unit 200, the RAM 102 is provided with the logical number of the aggregate block and the physical numbers of a plurality of areas forming the aggregate block. That is, the CPU 100 reads the table showing the correspondence between each area number (coordinates) in the memory card 104 and the logical number (area information) of the aggregate block in step ST1, transfers it to the RAM 102, and creates coordinate corresponding area information. .

After that, the CPU 100 outputs the display data to the display area corresponding to the coordinate area according to the above table on the display 105A via the VRAM 106 in step ST2, and performs the key display. And step ST
At 3, the touch process for detecting each key on the touch panel 105B is started. When the touch processing is started, the CPU 1
00 determines whether or not a key press is detected in step ST4 in the interrupt process. When a key press is detected, it is determined in step ST5 whether or not the pressed key matches any of the above area numbers, and if they match, this area number is determined. Corresponding area information transfer processing is performed to transfer, for example, the logical number A of the aggregated block including “A” to the application unit 200.

Such key detection processing is performed by the display 105.
It is continued until the display screen of A is changed to the next display screen. Then, when a screen change in which the CPU 100 exits the interrupt process and the current display screen is switched to the next display screen is detected, and thus the determination in step ST6 is "Y", the process proceeds to step ST7 and the touch process is terminated. In this embodiment, the “screen display process” in step ST2 is performed after the “coordinate corresponding area information creation process” in step ST1.
However, the order of these processes may be reversed,
In short, the touch panel 105B may be detected after the table of "coordinate corresponding area information" is created.

[0016]

As described above, according to the present invention, m
A touch panel device comprising a display unit for displaying input keys corresponding to × n areas and a touch panel arranged on the display unit for outputting input area information out of m × n areas. I created a table that correlates the input key information displayed on the device with the area information that displays this input key, and when the area information is output from the touch panel, I refer to the table to identify the input key. The input key for the area information output from the touch panel can be uniquely determined from the above table. Therefore, for example, when the plurality of input keys and their display areas are treated as one aggregate block by executing the application program, the application program In, the process of collating the input key detected by pressing again is omitted. Therefore, the program amount can be reduced and the processing time in the key detection processing can be shortened.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a terminal device to which a key detection method for a touch panel device according to the present invention is applied.

FIG. 2 is a diagram showing a configuration of a main part of the terminal device and showing configuration states of software and hardware.

FIG. 3 is a flowchart showing an operation of the terminal device.

FIG. 4 is a diagram showing a configuration of the touch panel device.

FIG. 5 is a diagram showing an example of a case where a plurality of input keys and a display area thereof are represented as one collective block in the touch panel device.

[Explanation of symbols]

 100 CPU 101 ROM 102 RAM 104 Memory Card 105 Touch Panel Device 105A Display 105B Touch Panel 106 VRAM 200 Application Unit 210 Driver Unit

Claims (1)

[Claims] 1. A display device for displaying input keys corresponding to m × n areas, and the m × n device provided on the display device.
In a key detection method of a touch panel device configured to output input area information out of individual areas and identifying an input key based on the area information from the touch panel, the input key information displayed on the display device. A touch panel characterized in that a table is created by associating the input information with area information for displaying the input key, and when the area information is output from the touch panel, the input key is identified by referring to the table. Device key detection method.