JP2003140820A - Touch panel input device and input method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a touch panel input device capable of carrying out accurate input without visually observing a touch panel. SOLUTION: A CPU 11 of a microcontroller 1 of this touch panel input device 100 transmits output pulse to the touch panel 2 from an I/O port 12 through a driver 3 in signal control processing, receives response pulse from the touch panel 2 and simultaneously receives a clocking state signal sc or a clocking end signal sb from a timer 14. The CPU 11 sends a clocking start signal sa to the timer every time it receives the response pulse. The CPU 11 stores the response pulse, clocking end signal sb and clocking state signal sc in a RAM 16 and analyzes these data. When the data pattern of the analyzed data is recognized referring to a locus data table A on the basis of the analyzed data, the analyzed data is transmitted from a UART 145 to an RS232C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a touch panel input device and an input method for detecting a trajectory of a touch operation at the time of touching a touch panel by pressing it with a finger or a pen.

[0002]

2. Description of the Related Art Conventionally, a CD (Compac
(t Disc) or MD (Mini Disc), etc., when the command such as play, stop, and song feed is executed, the surface of the touch panel is divided into a plurality of areas, and irregularities having different shapes are formed in each of the divided areas. Touch panel input devices have been devised.
According to such a touch panel input device, it is possible to perform input using the feel of a finger without visually observing the operation unit.

Further, as shown in FIG. 6, a touch panel input device is also devised in which various control buttons 52 are displayed on a display screen 51 of a touch panel having a flat surface and commands are input by pressing the control buttons 52. Has been done.

[0004]

However, in the touch panel input device as described above, it is difficult to accurately perform the intended input if the touch panel input device is operated without visual inspection. There are many cases where an erroneous operation such as a mistake is made, and it is difficult to perform an operation without visual inspection. Also, when inputting using the feel of the finger,
This is troublesome because it is necessary to confirm the unevenness of a plurality of areas by touching them with a finger before inputting. In addition, in a touch panel input device connected to a car audio system, the user has to operate while driving, and if the user operates while looking at the display screen of the touch panel during driving, it causes a problem in driving. was there.

Therefore, an object of the present invention is to provide a touch panel input device capable of performing accurate input without visually observing the touch panel.

[0006]

In order to solve the above problems, the present invention has the following features.

The present invention is directed to a detecting means which is connected to an electronic device and detects track data input from a touch panel by a touch operation, a command for instructing an operation of the electronic device, and a track data pattern which is a pattern of the track data. And a locus data pattern that matches the locus data input from the touch panel by referring to the command and the locus data pattern stored in the storage unit. Reading means for reading the command associated with
Command output means for outputting the command read by the reading means to the electronic device.

Further, according to the present invention, a detecting step of connecting to an electronic device and detecting track data input from a touch panel by a touch operation, and the track stored in association with a command for instructing an operation of the electronic device. A read step of referring to a locus data pattern that is a data pattern, detecting a locus data pattern that matches the locus data input from the touch panel, and reading a command associated with the locus data pattern; An output step of outputting the generated command to the electronic device,
It is characterized by including.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a touch panel input device 100 according to the present invention will be described in detail below with reference to FIGS.

First, the structure will be described. FIG. 1 is a schematic block diagram showing the configuration of a touch panel input device 100 according to an embodiment of the present invention. As shown in FIG. 1, the touch panel input device 100 includes a microcontroller 1,
Touch panel 2, microcontroller 1 and driver 3 for connecting touch panel 2, RS232C driver /
The receiver 4 is included. The car audio 5 is connected to the RS232C driver / receiver 4 via an RS232C cable 30.

The micro controller 1 is connected to the touch panel 2, the driver 3, the RS232C driver / receiver 4 by a cable, respectively, and executes various processes such as a signal control process described later. In the signal control process, the microcontroller 1 sends an output pulse to the touch panel 2 via the driver 3. In addition, a response pulse to the output pulse, that is, touch input data at each coordinate on the touch panel 2 is input from the touch panel 2, the response pulse is processed, and obtained.
RS23 command data for car audio 5
A series of operations of sending to the 2C driver / receiver 4 is repeatedly executed.

The touch panel 2 is connected to the microcontroller 1 and the driver 3 by a cable. The touch panel 2 is a resistive film sheet, on which n × m is placed.
The display screen 21 is provided with (n and m are integers) grid-like contacts (coordinates), and signals from each coordinate are sent to the microcontroller 1 as response pulses to the output pulse. For example, when a certain coordinate A on the display screen 21 is pressed, the signal form of the response pulse of the pressed coordinate A is different from the signal form of the response pulse of the unpressed coordinate B. As a result, the microcontroller 1 to which the response pulse is input receives the pressed coordinates on the display screen 21,
That is, the position of touch input on the touch panel 2 is detected.

As shown in FIG. 2, the display screen 21 of the touch panel 2 comprises a left area 21A and a right area 21B. The display screen 21 has x-coordinates set in the horizontal direction and y-coordinates set in the vertical direction.

The driver 3 is connected to the microcontroller 1 and the touch panel 2 by a cable, and when an output pulse is input from the microcontroller 1, the driver 3 converts the output pulse into a signal form that the touch panel 2 can process (for example, voltage). Amplify the level etc.) and touch panel 2
Send to.

When the RS232C driver / receiver 4 receives the data sent from the microcontroller 1, the RS232C driver / receiver 4 converts the data into a signal form specified by RS232C, and the RS232C receiver / receiver of the car audio 5 via the RS232C cable 30. Send to the driver 20. When data is received from the car audio 5 via the RS232C cable 30, the data is converted into a signal form that can be processed by the microcontroller 1 and transmitted to the microcomputer 1.

The car audio 5 has a built-in RS232C receiver / driver 20, and from this RS232C receiver / driver 20 to an RS232C cable 30.
When the data from RS232C driver / receiver 4 is input via, the CD (Compac
t Disc), MD (Mini Disc), and other various reproduction processes including reproduction, stop, music advance, and fast forward. Further, the instruction data for the microcontroller 1 is transmitted to the RS232C driver / receiver 4 via the RS232C cable 30.

Next, the internal structure of the microcontroller 1 will be described. The microcontroller 1 is a CPU
11, an I / O port 12 individually connected to the CPU 11, a ROM 13, a timer 14, and a UART 15
And each part is connected by a bus.

CPU (Central Processing Unit) 11
Reads and executes various application programs stored in the ROM 13 to centrally control each unit of the microcontroller 1. The CPU 11 has a built-in RAM 16 and controls the operation of each unit in the microcontroller 1 in accordance with a response pulse input from the touch panel 2 to the microcontroller 1 and a timing end signal sb and a timing status signal sc input from the timer 14. Then, while processing or processing result data is stored in the RAM 16, RS
The signal control processing for sending to the 232C driver / receiver 4 is executed.

The CPU 11 controls the I
An output pulse is sent from the / O port 12 to the touch panel 2 via the driver 3 at a constant timing. The response pulse from the touch panel 2 to this is the I / O port 1
Input from 2. Each time the CPU 11 receives the response pulse, the CPU 11 transmits the time counting start signal sa to the timer 14, and also receives the time counting end signal sb and the time counting state signal sc output from the timer 14.

Here, the timing start signal sa is a signal instructing the timer 14 to start the timing operation, the timing end signal sb is a signal indicating the termination of the timing operation by the timer 14, and the timing status signal sc is the timing operation signal sc. This is a signal indicating that the vehicle is in the middle or stopped.

For example, when the CPU 11 receives the response pulse and the timekeeping state signal sc input from the timer 14 indicates that the timekeeping is stopped, there is a new touch input with no touch input. That is, the first data detection in the released state is determined. The coordinates on the touch panel 2 where the first data detection is performed in this release state are the input start position.

On the other hand, when the timekeeping state signal sc indicates that the timekeeping operation is in progress, the touch input data received this time may be in the middle of a continuous touch input operation. In this case, the CPU 11 compares the touch input data received this time with the touch input data received last time. When these data match, and the time-matching end signal sb is received from the timer 14 after the data matches for 2 seconds or more,
Detects that the touch input data is a point. When the above data do not match, it is detected that the touch input data is continuously input. Less than,
When the CPU 11 receives the time counting end signal sb from the timer 14, it is called a release state. Further, the coordinates on the touch panel 2 in the released state are set as the release position.

Further, the CPU 11 outputs the response pulse from the time when the time start signal sa is output to the timer 14 to the time when the time end signal sb is received from the timer 14, and the time state signal sc received from the timer 14 at the time of receiving each response pulse. It is also stored in the built-in RAM 16. Then, the stored data is analyzed and the coordinates of the touch input data on the touch panel 2 are calculated to determine which area on the touch panel 2 the input start position and the release position are. CPU
11 determines that the x-coordinate of the touch input position is the left area 21A if it is less than x / 2, and the right area 21B if it is greater than x / 2. When the touch input position is detected in this manner, the data locus data table A shown in FIG. 3 is referenced based on the detection result, the command is recognized, and the data of this command is output to the UART 15. The CPU 11
Has a function as a reading unit and an output unit.

The I / O port 12 transmits the output pulse input from the CPU 11 to the touch panel 2 via the driver 3. Further, the response pulse directly input from the touch panel 2 is sent to the CPU 11.

The ROM 13 stores various application programs necessary for the control of the microcontroller 1 by the CPU 11 and signal control processing. In addition, a locus data table A (see FIG. 3) that stores a data pattern of analysis data obtained by analyzing touch input data in the signal control process and a command corresponding thereto is stored.
In the present embodiment, the data pattern and the command are stored in advance in the ROM 13 in association with each other, but an arbitrary data pattern and command are registered in association with each other according to the user's settings, and are stored in the ROM 13. Good. The ROM 13 has a function as a storage unit.

Now, the trajectory data table A shown in FIG. 3 will be described. As described above, the CPU 11 receives the response pulse from the time when the time counting start signal sa is sent to the timer 14 to the time when the time counting end signal sb is input from the timer 14 in the signal control processing, and at the same time the timer 1 receives the response pulse.
The clock state signal sc received from No. 4 is stored in the RAM 16. As shown in FIG. 3, the input start position of the stored data is the left area 21A of the display screen 21 of the touch panel 2.
If there is continuous data input, the release position is within the right area 21B, and one second or more has elapsed after the release state, the command by this touch input is “play”.

Further, irrespective of the area on the display screen 21, one point on the touch panel 2 is the input start position and the release position, and when the time from the input start to the release is 2 seconds or more, it is "stop". .

Further, there is an input start position in the left area 21A, a release position in the right area 21B after continuous data input, and then there is an input start position in the left area 21A, and right area after the continuous data input. If there is a release position at 21B, and if the time from the start of the first input to the final release is within 2 seconds, it is "music feed". on the other hand,
If there is the opposite data input in the left and right areas 21A and 21B, it means "reverse music".

Further, there is an input start position in the left area 21A, a release position in the right area 21B after continuous data input, and then there is an input start position in the left area 21A, and right area after the continuous data input. If there is a release position on 21B, the time from the start of the first input to the arrival of the last release position is within 2 seconds, and the input continues for 2 seconds or more at the last release position, "fast forward" is performed. Is. On the other hand, this and the left and right areas 21A and 21
If there is the reverse data input in B, "Rewind"
Is.

When the timer 14 receives the time counting start signal sa from the CPU 11, the timer 14 performs the time counting operation according to the time counting start signal sa, and when the time counting operation ends, returns the time counting end signal sb indicating the time counting end to the CPU 11. Further, the timekeeping state signal sc is constantly transmitted to the CPU 11 to notify whether the timekeeping operation of the timer 14 is operating or stopped.

The UART 15 outputs the data of the command of the touch input data obtained by the signal control processing to the CPU 11.
And output to the RS232C driver / receiver 4.

Next, the operation of the touch panel input device 100 to which the present invention is applied will be described. FIG. 4 is a diagram showing a signal control process by the touch panel input device 100. Figure 4
As shown in, the CPU 11 of the microcontroller 1 of the touch panel input device 100 transmits an output pulse from the I / O port 12 to the touch panel 2 via the driver 3 (step S1), and the touch panel via the I / O port 12. It is determined whether or not the response pulse is received from 2 (step S2). When the response pulse is not received (step S2; NO), it waits until the response pulse is received, and when the response pulse is received (step S2; YES), it is further determined whether or not the timekeeping state signal sc is received from the timer 14 ( Step S3).

When the CPU 11 receives the timekeeping state signal sc in step S3 (step S3; Y
ES), the timer start signal sa is transmitted to the timer 14, and the received response pulse and the timer status signal sc are RA.
It is stored in M16 (step S4) and the process returns to step S1. On the other hand, when the timekeeping state signal sc is not received (step S3; NO), it is further determined whether or not the timekeeping end signal sb is received from the timer 14 (step S5), and when it is not received (step S5; NO). , And returns to step S3. When the time measurement end signal sb is received (step S5;
YES), RA is the timing end signal sb together with the response pulse
The data is stored in M16 (step S6).

Subsequently, the CPU 11 executes the above step S4.
And after analyzing the response pulse stored in the RAM 16 in step S6 and the data of the timing state signal sc and the timing end signal sb stored together with each response pulse, the ROM
The trajectory data table (see FIG. 3) stored in 13 is referred to (step S7). Then, it is determined whether or not there is a data pattern that matches the analyzed analysis data and a command corresponding thereto, that is, whether or not to recognize the data (step S8). If the analysis data is not recognized (step S8; NO), the process returns to step S1 and the analysis data is recognized (step S8; YE).
S), data of the command corresponding to the recognized analysis data is transmitted from the UART 15 to the RS232C receiver / driver 4 (step S9), and the process returns to step S1.

As described above, according to the above embodiment, the CPU 11 of the microcontroller 1 of the touch panel input device 100 performs the I / O in the signal control process.
An output pulse is transmitted from the port 12 to the touch panel 2 via the driver 3, and a response pulse to the output pulse is received from the touch panel 2, and at the same time, the timer 14 receives the clock state signal sc or the clock end signal sb. Also,
The CPU 11 receives the response pulse every time it receives the response pulse.
The clock start signal sa is sent to. The CPU 11 outputs the response pulse, the time measurement end signal sb, and the time measurement state signal sc to RA.
Store in M16 and analyze these data. Based on the analysis data obtained by this, the trajectory data table A
And recognize the data pattern of the analysis data,
This analysis data is transmitted from UART15 to RS232C.

Therefore, according to the touch panel input device 100 to which the present invention is applied, accurate touch input can be easily performed with a simple pattern without visually observing the touch panel 2. In particular, during driving, the car audio 5 can be operated without visually observing the touch panel 2, and it is possible to prevent the driving from being disturbed.

Further, according to the touch panel input device 100, since it is not necessary to display the control buttons on the display screen 21 of the touch panel 2, it is possible to set wallpaper on the display screen 21 according to the user's preference. The convenience for the user is improved.

It should be noted that the present invention is not limited to this embodiment, and can be modified as appropriate without departing from the spirit of the present invention. For example, the data patterns and commands stored in the trajectory data table A are not limited to the contents described in the above embodiment. Examples of other data patterns and commands corresponding thereto are shown in the trajectory data table B shown in FIG. Here, an example of instructing a radio operation by the car audio 5 is shown.

As shown in FIG. 5, when one point in the right area 21B of the display screen 21 of the touch panel 2 is pressed for a short time (less than 2 seconds), it means that the command "TUNE UP" has been input and the left side. When one point in the area 21A is pressed for a short time (less than 2 seconds), it means that the command "TUNE DOWN" has been input. Further, when one point is pressed for 2 seconds or longer regardless of the area, the command of "SCAN" is input. The data input start position is left area 2
If it is within 1A, data is continuously input, and the release position is within the right area 21B, the command of "preset channel feed" is input, and the opposite touch input is performed in the left area 21A and the right area 21B. If there is, a command for “reset preset channel” is input.

The data patterns stored in the locus data tables A and B and the commands corresponding thereto may be arbitrarily set by the user, or may be stored in the ROM 13 as a program in advance. .

Further, in the above-mentioned embodiment, an example in which reproduction of a CD or MD and operation instruction of a radio are given has been described.
INDUSTRIAL APPLICABILITY The present invention is applicable to various electronic devices, for example, a cassette memory audio device or the like.

In addition, the detailed configuration and detailed operation of the touch panel input device 100 according to the present embodiment can be appropriately changed without departing from the spirit of the present invention.

[0043]

As described above, according to the present invention, it is possible to provide a touch panel input device capable of performing accurate input without visually observing the touch panel.

[Brief description of drawings]

FIG. 1 is a schematic block diagram showing a configuration of a touch panel input device 100 according to an embodiment of the present invention.

FIG. 2 is a diagram showing a display screen 21 of the touch panel input device 100.

3 is a diagram showing a trajectory data table A stored in a ROM 13 of FIG.

FIG. 4 is a flowchart showing a signal control process by a CPU 11 of FIG.

5 is a diagram showing a trajectory data table B when the car audio 5 is caused to perform a radio reproducing process by the touch panel input device 100. FIG.

FIG. 6 is a diagram showing a display screen 51 of a conventional touch panel input device.

[Explanation of symbols] 1 Micro controller 2 touch panel 3 drivers 4,20 RS232C driver / receiver 11 CPU 12 I / O ports 13 ROM 14 timer 15 Communication control unit 16 RAM 21 Display screen 21A left area 21B right area 30 RS232C cable 51 Display screen 52 Control button 100 touch panel input device

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G11B 27/34 G11B 27/34 ZF term (reference) 5B068 AA22 BD17 BE12 CC06 CC17 CC19 5B087 AA09 CC26 DD02 DD03 DD17 DJ01 5D077 AA21 BA00 BA18 BB08 CA03 CB15 5E501 AC15 BA05 CB05 EA02 FA14 FA45 FB22

Claims (2)

[Claims] 1. A detection means which is connected to an electronic device and detects trajectory data input from a touch panel by a touch operation, a command for instructing an operation of the electronic device, and a trajectory data pattern which is a pattern of trajectory data. Corresponding to the locus data pattern that matches the locus data pattern stored in the storage unit and the command and locus data pattern stored in the storage unit to detect the locus data pattern that matches the locus data input from the touch panel. A touch panel input device comprising: a reading unit that reads the attached command; and an output unit that outputs the command read by the reading unit to the electronic device. 2. A detecting step of detecting trajectory data input from a touch panel by touch operation by connecting to an electronic device, and a pattern of the trajectory data stored in association with a command for instructing operation of the electronic device. A step of referring to a certain locus data pattern, detecting a locus data pattern that matches the locus data input from the touch panel, and reading a command associated with the locus data pattern; and a step of reading the read command. And an output step of outputting to the electronic device.