JP3003493B2 - Pen input device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pen input device for selecting each operation key displayed on a display by pen input.

[0002]

2. Description of the Related Art Generally, an electronic organizer or the like includes a display such as an LCD, a memory for storing character data, an operation unit, and a CPU.
Etc. are provided. When the CPU detects the operation of the operation unit, the CPU converts the input data based on the operation into character data and sequentially displays the character data on the display unit. The stored character data strings are stored in memory in the order of the Japanese syllabary. Also, in such an electronic organizer, a function of sequentially displaying the character data strings stored in the memory in alphabetical order on a display device,
When a certain character is specified, each character data string in the memory is searched and a corresponding character data string is displayed on a display.

Some of such electronic organizers have a touch panel type in which an operation unit is provided on the back of the display. In such an electronic organizer, each operation key is displayed in a predetermined area on the display. Have been. When an operation key on the display is pressed by a pen or the like, a corresponding output is transmitted to the CPU from an operation unit formed on the back surface, and the CPU recognizes the pressing of the operation key.

[0004]

In such a touch panel type electronic organizer or the like, for example, one of the item numbers corresponding to the respective character strings in alphabetical order displayed on the display device is designated. When performing an operation such as enlarging the display by pen input, specify the enlarged key displayed as an operation key on the display by pen input, and then the corresponding character also displayed as an operation key on the display The above-mentioned item number of the column is designated by a pen. However, such an operation by pen input merely involves pressing the displayed operation key, and thus has a problem that the operator has anxiety about whether or not the operation has been reliably performed.

Accordingly, an object of the present invention is to provide a pen input device which does not cause a feeling of strangeness when performing a pen input operation.

[0006]

According to the present invention, there is provided a display for displaying a plurality of keys corresponding to respective functions in respective areas of a display screen. A pen that performs key input by pressing an area corresponding to the key, a touch key unit that is formed integrally with the display and outputs coordinate data according to the pressing of the pen, and a plurality of keys displayed on the display A memory that stores a display area and coordinate data corresponding to each of these keys in pairs, detects a pressing operation of the pen on each of the plurality of key display areas, and implements a function based on a combination of a plurality of keys. In the pen input device, the coordinate data serving as the starting point based on the pressing of the pen on the display is detected, and when the detected coordinate data indicates the key display area, the coordinate data based on the pressing of the pen on the display is continuously displayed. A pen input detecting means for outputting, a display control means for displaying coordinate data detected by the pen input detecting means on a display as a movement locus of the pen, and a pen display means for detecting the coordinate data by the pen input detecting means. When the pressing is released, when the last detected coordinate data exists in any key display area other than the key display area indicating the starting point, the coordinate data corresponding to the starting point is determined.
Key and the key corresponding to the last detected coordinate data.
And control means for executing a function based on the combination of keys . Also, if the last detected coordinate data by the pen input detection means it is determine constant if not present in any of the key display area other than the key display area indicating the origin, erases the movement locus display of the pen This is to output an alarm.

[0007]

When the indicator is pressed by the pen, the coordinate data serving as the starting point is detected. When the detected coordinate data indicates the key display area, the coordinate data based on the pressing of the pen on the display is continuously detected. . Then, the coordinate data is displayed on the display as a movement locus of the pen, and when the pen is released from being pressed during the detection of the coordinate data ,
The last detected coordinate data exists in the key display area indicating any end point other than the key display area indicating the start point.
Sometimes the key corresponding to the starting coordinate data and finally
Based on the key combination corresponding to the detected coordinate data
Perform the following function . As a result, between each key of the starting point and the end point
Key combination by continuously inputting
In addition to the above, a predetermined function based on the above can be realized , and at the time of pen input operation, a line is displayed between the key display areas of the start point and the end point, so that the operability is improved. If the last detected coordinate data does not exist in the key display area indicating any end point other than the key display area indicating the start point, the movement locus of the pen is deleted and an alarm is output. Therefore, when an erroneous operation is performed, this fact can be accurately notified to the handler.

[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 pen input device according to the present invention, in which the pen input device is applied to a wireless terminal. In FIG. 1, the pen input device 1
Is provided with a CPU 11, and a display unit 12 for performing various displays and an A / D converter 13 are connected to the CPU 11. Here, the A / D converter 13 converts the voltage level signal from the touch key unit 14 into a digital signal and transmits the digital signal to the CPU 11. The touch key portion 14 is formed of an assembly of resistors (transparent electrodes) and is formed integrally with the display unit 12 described above. When each portion on the surface of the display unit 12 is pressed, the touch key portion 14 corresponds to the pressed position. And generates a voltage level signal in each of the X-direction and the Y-direction.
3 to be converted into a digital signal.

The CPU 11 is connected to a buzzer 15, a clock unit 16, and a modem unit 17 that ring when an incoming call is received. Here, the modem unit 17 sends the data signal from the CPU 11 to the wireless transmission / reception unit 18 to transmit the data signal to a base station (not shown) via the antenna AT, and receives the data signal from the base station via the wireless transmission / reception unit 18. The received data is transmitted to the CPU 11. Further, since the pen input device 1 is portable, a battery 19 is used as a power supply, and a power supply control unit 20 converts an output voltage of the battery 19 and supplies the output voltage V to each unit of the device.

When the CPU 11 receives an operation signal from the touch key unit 14 via the A / D conversion unit 13, the CPU 11 performs a predetermined process and displays the processing result on the display unit 12. Then, when transmitting this display screen to the partner device, after calling the partner device, the display screen data is transmitted as packet data to the base station via the modem unit 17, the radio transmitting / receiving unit 18 and the antenna AT. As a result, the data on the display screen is transmitted from the base station in the area of the transmitting apparatus to the base station side wirelessly connected to the partner apparatus via the center apparatus, and further transmitted to the desired partner apparatus for display. You. The display screen data transmitted from the partner device is received by the CPU 11 via the antenna AT, the wireless transmission / reception unit 18 and the modem unit 17, and is similarly displayed on the display unit 12. As described above, in the present apparatus, a data signal such as display screen data can be bidirectionally communicated with the partner apparatus.

Next, FIG. 2 is a view showing the structure of the touch key section 14, wherein FIG. 2A shows a cross section thereof, and FIG. 2B shows a plane thereof. In FIG. 2A, the touch key unit 14 includes a film electrode 141 and a glass electrode 142. Here, the film electrode 141 is formed from the film 141A and the transparent electrode 141B, and the glass electrode 142 is formed from the dot spacer 142A, the transparent electrode 142B, and the glass substrate 142C. Together with the touch key unit 14 configured as described above,
A display 12B constituting the display unit 12 described above is provided. When a certain operation key area displayed on the display 12B is pressed by the pen 30, the pressing pressure is transmitted to the film electrode 141 of the touch key unit 14, and the pressing pressure causes the film electrode 141 to be transparent. An area corresponding to the pressed area of the electrode 141B and the transparent electrode 142B disposed on the glass electrode 142 at right angles to the electrode 141B comes into contact with each other. As a result, the contact point is output to the CPU 11 as key input information.

That is, as shown in FIG. 2B, a plurality of transparent electrodes 141B and 142B are formed in the Y and X directions, respectively, and the lead electrodes 141D and 142D are respectively formed.
Is connected as an input to the A / D converter section 13, and the A / D converter section 13 converts the sequentially scanned voltages of the transparent electrodes 142 </ b> B in the X direction and the transparent electrodes 141 </ b> B in the Y direction into digital signals, and sends the digital signals to the CPU 11. Communicate and CP
U11 detects the pressed area of the pen 30 as coordinate data from the converted digital signal. on the other hand,
The area of each operation key on the display screen of the display unit 12B is stored in the RAM 22 in the apparatus in pairs with the above-mentioned coordinate data, and can be recognized by the CPU 11, and
When detecting coordinate data obtained by operating the touch key section 14, the CPU 1 refers to the RAM 22 to recognize which operation key this operation area is, and performs input processing and the like according to the function of the corresponding operation key. The result is displayed on the display 12B via the display controller 12A.

In the case where a screen including operation keys as shown in FIG. 4 is displayed on the display 12B, for example, when it is desired to enlarge the display content corresponding to the item number 3, the conventional display An enlargement key 121, which is an operation key displayed on 12B, is pressed with the pen 30, and then the item key 122 is pressed with the pen. in this way,
In an input operation in which each key displayed on the screen is pressed with the pen 30, the operator may have anxiety about whether or not the operation has been reliably performed. After the user presses 121 with the pen 30, the display 12B is subsequently moved to the display area of the item key 122 while pressing it, and the pen 30 is released from the display 12B in the display area of the corresponding item key 122. While the pen 3 is moving, its movement locus is displayed on the display screen. By performing the input operation of the pen 30 in this manner,
The operator can recognize that the operation has been performed reliably.

FIG. 3 is a flowchart showing the operation of the CPU 11 in response to the input operation of the pen 30 described above.
That is, a screen previously stored in the RAM 22 and operation keys included in the screen are read and displayed on the display 12B, and a certain area of the display screen of the display 12B is pressed by the pen 30. Pressing the CPU 1 as coordinate data via the touch key unit 14 and the A / D conversion unit 13
1 is transmitted. In this case, the CPU 11 refers to the RAM 22 and determines whether or not the coordinate data of the area depressed by the pen 30 is the area of the above-described operation key. ? "
Is determined to be “Y”. In this case, in step ST2, the CPU 11 blinks the first area, that is, the pressed key area of the display screen of the display 12B (for example, corresponds to the display area of the enlargement key 121 shown in FIG. 4). When the operator moves the pen 30 while continuing to press it down, this operation is detected via the touch key unit 14, and the movement locus of the pen 30 is displayed as a line on the display 12B in accordance with the pen input operation. .

Such a line display is displayed on the display 1 of the pen 30.
2B is continued until the press is released, and the pen 30
Is released from the display 12B, and when the determination in step ST4 becomes “Y”, the CPU 11 determines whether the area where the pen 30 is released on the display screen is an area of the valid key or not.
A determination is made in step ST5 with reference to M22. If the area where the pen is released is an effective key area other than the key area (starting point) indicating the first input, step ST
The valid key area is displayed in a blinking manner at 6 (corresponding to, for example, the display area of the item keys in FIG. 4). Then, a key area (starting point) indicating the first input of the pen 30 and the pen 30
In step ST7, a key input process based on a combination of two keys in the key area (end point) where the key is released is executed.

If the area where the pen 30 is released on the display screen is not the valid key area and the determination in step ST5 is "N", it means an invalid operation. A process for deleting the display from the display screen is performed, and the buzzer 1
Rings 5 and outputs an alarm.

[0017]

As described above, according to the present invention, when the display is pressed by the pen, the coordinate data serving as the starting point is detected, and when the detected coordinate data indicates the key display area, the pen is continued. Detecting coordinate data based on the pressing of the display on the display, displaying the coordinate data on the display as a movement locus of the pen, and releasing the pressing of the pen on the display while detecting the coordinate data. When the last detected coordinate data exists in the key display area indicating any end point other than the key display area indicating the start point, the start point is determined.
Key corresponding to the coordinate data and the last detected coordinate
Since the function based on the key combination corresponding to the data is executed , the key between the start point and the end point is continuously
The location based on each key combination by pen input
It is possible to realize a constant function, when the pen input operation, because among the key display area of the start point and end point is the line displayed, the operability is greatly improved. Further, when the last detected coordinate data does not exist in the key display area indicating any end point other than the key display area indicating the start point, the movement locus of the pen is erased and an alarm is output. In the case where an erroneous input operation is performed, this fact can be accurately notified to the handling person.

[Brief description of the drawings]

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

FIG. 2 is a diagram showing a configuration of a main part of the device.

FIG. 3 is a flowchart showing the operation of the above device.

FIG. 4 is a diagram showing a display state of the device.

[Explanation of symbols]

 Reference Signs List 1 pen input device 11 CPU 12 display unit 12A display controller 12B display 14 touch key section 15 buzzer 22 RAM 30 pen 141B, 142B transparent electrode

Claims (2)

(57) [Claims] 1. A display for displaying a plurality of keys corresponding to each function in each area of a display screen, and a pen for performing key input by pressing an area corresponding to the key displayed on the display. A touch key unit that is formed integrally with the display and outputs coordinate data according to the pressing of the pen, a plurality of key display areas displayed on the display, and the coordinate data corresponding to each of these keys. A memory that stores a pair of keys, and detects a pressing operation on each of the plurality of key display areas of the pen to realize a function based on a combination of a plurality of keys. Pen input detection means for detecting coordinate data serving as a starting point based on pressing and, when the detected coordinate data indicates a key display area, continuously detecting coordinate data based on pressing of a pen on a display; Display control means for displaying the coordinate data detected by the pen input detecting means on the display as a movement locus of the pen, and pressing of the pen to the display during the detection of the coordinate data by the pen input detecting means is released. and if the coordinate sometimes becomes the starting point last detected coordinate data is present in any of the key display area other than the key display area indicating the start point de
Key corresponding to the data and the last detected coordinate data.
A control hand that performs a function based on the corresponding key combination
Pen input device, characterized in that a and stage. 2. The pen input device according to claim 1, wherein it is determined that the coordinate data last detected by said pen input detecting means does not exist in any key display area other than the key display area indicating the starting point. A pen input device that erases the display of the movement locus of the pen and outputs an alarm.