JP3598563B2 - Input device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to an input device applied to an information terminal device such as a portable information communication device or an electronic organizer having a touch panel display screen.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in an information terminal device having a touch panel type display screen, a handwritten character string can be input and displayed by operating the touch panel.
In this case, the character string displayed by handwriting input is recognized and converted into code data and displayed as a corresponding font pattern, or the input handwritten character string is displayed as it is.
On the other hand, a keyboard may be displayed on the display screen of the touch panel type, and a character string by key input may be displayed as a font pattern.
[0003]
[Problems to be solved by the invention]
However, in the conventional information terminal device, when the character string input by the keyboard and the character string input by the handwriting are handled in a mixed manner, the key input character string and the character are recognized and converted into the code data. A character string obtained by handwriting input can be treated equally as code data. However, since a character string left as it is is processed as independent image data, it is treated equivalently to the code character string input by the key. There is a problem that cannot be done.
[0004]
In addition, since the character string as handwritten is processed as independent image data, there is a problem that correction, deletion, and the like cannot be performed as data in word units.
[0006]
The present inventionofThe purpose is key code data and handwritten image data.An object of the present invention is to improve a method of deleting data in an input device capable of inputting data in a mixed manner. Also, by improving the data deletion method for devices that input handwritten image data,is there.
[0007]
[Means for Solving the Problems]
The first input device of the present invention includes: data input means for inputting key code data and handwritten image data; delimiter instructing means for instructing a data delimiter; An input buffer for holding the data being input by the data input means and a delimiter instructed by the delimiter instructing means, the key code data or handwritten image data held in the input buffer is delimited by the delimiter instructing means. A memory sequentially stored in a given unit, erasing instruction means for instructing erasure of data, and a data erasing instruction by the erasing instruction means, if the data is being input by the data input means, Final inputLast input line data of key code data or handwritten image dataAnd an erasing means for erasing the last data of the key code or the handwritten image data stored in the memory if the instruction is after the delimitation instruction, in a divided unit. The data input means integrates a display device and a coordinate input device, and switches and displays a keyboard when inputting key code data and a handwriting input board when inputting handwritten image data. It can be configured as follows.
[0008]
The second input device of the present invention includes:Handwritten image data input means, delimiter instructing a data delimiter, and an input buffer for holding image data being input by the handwritten image data input means until a delimiter is instructed by the delimiter instructing means; When the delimiter is instructed by the delimiter instructing unit, the handwritten image data held in the input buffer is sequentially stored in units delimited by the delimiter instructing unit. Means for erasing the data by the erasing instruction means, if the data is being input by the data input means, erase the last input line constituting the image data in the input buffer, and Erasing means for erasing the entire last divided image data stored in said memory Characterized by comprising and. In this case, the handwritten image data input means integrates a display device and a coordinate input device, and the display area of the display device displays the image data being input held in the input buffer as a handwritten locus. And an output display area for displaying the image data stored in the memory.
[0010]
[Action]
The first input device inputs key code data or handwritten image data while instructing a data break, and instructs erasure of data. If data is being input, the last input in the input buffer is performed.Last input line data of key code data or handwritten image dataIs erased, and after the break instruction, the last data of the key code or the handwritten image data stored in the memory is erased in the divided unit.
[0011]
In the second input device,When inputting handwritten image data while instructing data delimitation and instructing data erasure, if input is being performed, the last input line segment constituting image data in the input buffer is erased, and if after delimitation instruction, So that the entire last delimited image data stored in the memory is erasedBecome.
[0013]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing an external configuration of a portable information communication device equipped with the input device of the present invention.
[0014]
The communication device main body 11 is large enough for the user to hold it with one hand. A front surface of the communication device main body 11 has a liquid crystal display panel 12 as a display device and a coordinate input device as a coordinate input device. A touch panel 14 is provided in which the touch panel 14 is overlapped with the tablet 13.
[0015]
The touch panel 14 has an input area 14a for performing a key input operation using a keyboard display and a handwriting input operation using a handwriting input board display, and an output area for displaying key data and handwritten data whose input has been confirmed in the input area 14a. 14b.
[0016]
A key input unit 15 is provided around the touch panel 14.
The key input unit 15 includes an "ON" key 15a operated when the power is turned on, an "input" key 15b operated when designating a data input mode, and an "input" key 15b operated when transmitting data. A "send" key 15c, a "receive" key 15d operated when confirming received data, a "confirm" key 15e operated when confirming received data, a cursor moving operation displayed on the touch panel 14, A cursor key 15f or the like operated when performing a data selection operation is provided.
[0017]
FIG. 2 is a block diagram showing a configuration of an electronic circuit of the portable information communication device.
The electronic circuit of the portable information communication device includes a control unit (CPU) 21.
The control unit (CPU) 21 stores a system program stored in the ROM 22 in advance in accordance with a touch input operation signal input from the tablet 13 via the tablet control unit 13 a or a key input operation signal input from the key input unit 15. And controls the operation of each part of the circuit. The control unit (CPU) 21 is connected to the RAM 23 in addition to the tablet control unit 13a, the tablet 13, the key input unit 15, and the ROM 22, An antenna 25 is connected via the wireless unit 24.
[0018]
The liquid crystal display panel 12 is connected to the control unit (CPU) 21 via a display driver 12a.
The tablet 13 of the touch panel 14 has a transparent touch area corresponding to the display area of the liquid crystal display panel 12 and is disposed so as to overlap the display screen of the liquid crystal display panel 12. When a touch operation is performed on any of the above points, a voltage signal corresponding to the touch operation position is supplied to the control unit (CPU) 21 together with a touch input interrupt signal via the tablet control unit 13a.
[0019]
Thereby, the control unit (CPU) 21 detects the touch input coordinates on the liquid crystal display panel 12 based on the voltage signal supplied from the tablet 13 via the tablet control unit 13a, and displays the touch input trajectory. Or the content of the touch operation is determined based on the display content at that time.
[0020]
The ROM 22 stores in advance a system program for controlling the entire operation of the portable information communication device, and also stores a key input processing program by displaying a keyboard, a handwriting input processing program by displaying a handwriting board, and converts handwritten data into output data. Subprograms corresponding to various operation modes, such as a handwriting / output conversion processing program, a key data or handwriting data output processing program, and a backspace processing program for deleting key data or handwriting data from the final data, are stored in advance.
[0021]
The ROM 22 also stores, as a character generator, font patterns of all characters, numerals, and symbol characters to be displayed on the liquid crystal display panel 12.
[0022]
Further, the ROM 22 has predetermined scroll start position data, scroll width data, and scroll predetermined data for executing the scroll processing of the handwritten data input and displayed on the input area 14a of the touch panel 14 when the handwriting input processing program is started. Scroll maximum number data is stored in advance.
[0023]
In this embodiment, the scroll width is 2/3 of the length of the input area 14a, and the maximum number of scrolls is three.
The scroll start position is set to a position which is 4/5 of the length of the input area 14a.
[0024]
FIG. 3 is a view showing an input display and an output display state on the touch panel 14 of the portable information communication device, and FIG. 3A is a view showing an output display state of key data input along with key input processing. FIG. (B) is a diagram showing a display state of a scroll start line L accompanying the handwriting input process, and FIG. (C) is a diagram showing a scrolling state of handwritten data accompanying the handwriting input process, and FIG. FIG. 5 is a diagram showing a display state of handwritten data output and input according to handwriting input processing.
[0025]
Here, FIG. 3A shows a key input state in which a keyboard K is displayed in the input area 14a of the touch panel 14, and FIGS. 3B to 3D show a handwriting input board in the input area 14a of the touch panel 14. This is a handwriting input state in which P is displayed.
[0026]
At the right end of the input area 14a of the touch panel 14, a "switch" key 31 operated when switching between key input processing by displaying a keyboard K and handwriting input processing by displaying a handwriting input board P, key data and handwritten data (Backspace) key 32 which is operated when deleting from the last data, "new line" key 33 which is operated when the data input position is changed, and which is operated when dividing the input data into one word unit. The displayed "space" key 34 is always displayed.
[0027]
That is, as shown in FIG. 3A, key data input by touching the keyboard K displayed on the input area 14a of the touch panel 14 is sequentially displayed on the output area 14a.
[0028]
As shown in FIG. 3B, the locus of the handwritten data input by touching the handwritten input board P displayed in the input area 14a of the touch panel 14 has a touch position coordinate (x, y). It is sampled at a fixed period, and is displayed by sequentially drawing the sampled coordinates (x1, y1) (x2, y2)... (Xn, yn) (echo back display).
[0029]
Here, the coordinates such as (x1, y1) are values with the upper left end of the touch panel 14 as the origin.
In this case, when the handwriting input position exceeds the scroll start line L, the handwritten data echo-back displayed is scrolled by a predetermined scroll width, and continuous handwriting input can be performed as shown in FIG. .
[0030]
Then, the series of handwritten data is determined in units of one word in accordance with the delimiting operation by the “space” key 34, and is displayed in the output area 14b as shown in FIG.
[0031]
FIG. 4 is a diagram showing a configuration of a data register provided in the RAM 23 of the portable information communication device.
The RAM 23 has an input code character buffer 41, a handwriting buffer 42, an echo back display buffer 43, a scroll flag register 44, a scroll count register 45, an output information area 46, a total word count register 47, a cursor position register 48, and an input state register 49. , A display work area 50 and the like.
[0032]
In the input code character buffer 41, a character code corresponding to a key input in accordance with a touch operation of the keyboard K displayed on the input area 14a of the touch panel 14 is temporarily stored.
[0033]
As shown in FIG. 4A, the handwriting buffer 42 has coordinates (corresponding to a locus of handwriting input along with a touch operation of the handwriting input board P displayed on the input area 14a of the touch panel 14). x1, y1) (x2, y2)... (xn, yn) are temporarily stored, and a pen release code (FF, FF) for indicating a point where the touch operation is interrupted between continuous coordinates is temporarily stored. Is stored in
[0034]
The echo back display buffer 43 stores image data in which each coordinate stored in the handwriting buffer 42 is connected by a line segment, and the position corresponding to the pen release code is discontinued one by one.
[0035]
“1” is set in the scroll flag register 44 when the handwriting input position on the handwriting input board P exceeds the scroll line L.
The scroll count register 45 stores the number of times the handwriting data on the handwriting input board P has been scrolled.
[0036]
The output information area 46 includes an output information management data area 46a and an output information actual data memory area 46b, as shown in FIGS. 4B and 4C. The key data and the handwritten data stored in the handwriting buffer 42 are moved and stored in the real data memory area 46b in units of one word corresponding to the delimiting operation of the "space" key 34, and their respective attribute data and storage positions are changed. The indicated pointer data and data length are stored in association with the management data area 46a.
[0037]
The total word count register 47 sequentially stores the total word counts of key data and handwritten data input in units of one word with the delimiter operation by the "space" key 34 as a unit.
[0038]
In the cursor position register 48, data indicating the cursor position is sequentially updated and stored.
The input state register 49 stores input state data indicating a key input state by displaying the keyboard K or a handwriting input state by displaying the handwriting input board P.
[0039]
The display work area 50 has a storage area for a display dot pattern corresponding to the output area 14b of the touch panel 14. The display work area 50 includes key data stored in the output information area 46, The handwritten data is sequentially developed and stored in units of one word as data to be displayed.
[0040]
Next, a data input operation of the portable information communication device equipped with the input device having the above configuration will be described.
FIG. 5 is a flowchart showing a character input process in the portable information communication device.
[0041]
FIG. 6 is a flowchart showing a key input process accompanying the character input process of the portable information communication device.
FIG. 7 is a flowchart showing an output process accompanying the character input process of the portable information communication device.
[0042]
FIG. 8 is a flowchart showing a handwriting input process accompanying the character input process of the portable information communication device.
FIG. 9 is a flowchart showing a handwriting / output conversion process accompanying the character input process of the portable information communication device.
[0043]
FIG. 10 is a diagram for explaining a coordinate conversion process corresponding to an output area of handwritten data accompanying a handwriting / output conversion process of the portable information communication device.
FIG. 11 is a flowchart showing a backspace process accompanying the character input process of the portable information communication device.
[0044]
That is, when the "input" key 15b of the key input unit 15 is operated, the character input process in FIG. 5 is started, the contents of various registers in the RAM 23 are cleared and initialized, and the input / display of the touch panel 14 is performed. A standby state is set (steps S1 and S2).
[0045]
In the present embodiment, it is assumed that key input state data is initially set in an input state register 49 in the RAM 23, and a keyboard K is displayed in the input area 14a of the touch panel 14 as shown in FIG. State. When the input area 14a is touched, the mode at that time is determined, and the process proceeds to the key input process in FIG. 6 (step S3 → SA).
[0046]
In this key input process, when a character key of the keyboard K is touch-operated and, for example, "COME" is input, a character code corresponding to each key "C" "O" "M" "E" is input each time the key is input. Are sequentially stored in the input code character buffer 41 in the RAM 23 (step A1 → A2).
[0047]
Then, as shown in FIGS. 4 (B) and 4 (C), each of the character code data inputted by the key is sequentially transferred to the real data memory area 46b in the output information area 36, stored and updated, and the attribute data thereof is updated. "Code", pointer data "P1", and data length "4" are stored in the management data area 46a (steps A3 and A4).
[0048]
The attribute data indicates whether the input data is handwritten or a key code. In the case of a key input, a “code” is stored. The pointer indicates the start address of the real data memory area 46b in which "COME" is stored.
[0049]
The data length stored in the management data area 46a indicates the storage length of the data. The character code requires 8 bits per character. If the data length is managed in byte units, the data length of the management data area 46a is "C" → "O" → "M" → "E". Every time it is input, it is updated in the order of “1” → “2” → “3” → “4”.
[0050]
Thus, each time the key data “COME” is sequentially input, the flow shifts to the output processing in FIG. 7 (step SA → SB).
In this output processing, first, the display work area 50 in the RAM 23 is cleared and initialized, and the key data “COME” stored in the real data memory area 46b of the output information area 46 is stored in the management data area 46a. The attribute data is read out according to the pointer data "P1" managed in advance and its attribute data is determined as "code" (steps B1, B2, B3).
[0051]
Then, the key data “COME” read from the real data memory area 46 b of the output information area 46 is sequentially developed into a font pattern as code characters and written in the display work area 50, and the output area of the touch panel 14 is output. 14b (step B3 → B4a, B5 → S2).
[0052]
When the key data "COME" is input and displayed in this manner, and the "space" key 34 is operated, the processing shifts to the key input processing in FIG. “COME” is cleared, and the word value of the entire word count register 47 is incremented by (+1) and set to “1” (steps A1 → A5 → A6, A7).
[0053]
Thus, "COME" is determined as one word.
Thereafter, on the keyboard K displayed in the input area 14a, "TO" is input and displayed in the output area 14b, and a delimiter operation in units of one word is performed by the "space" key 34. 6, the character code corresponding to the key data "TO", its attribute data "code", pointer data "P2", and data length "2" are output to the output information area 46. At the same time, the word value of the entire word number register 47 is updated and set to "2".
[0054]
Here, when the "BS" key 32 is operated to delete the key data input and displayed by operating the keyboard K, the process shifts to the backspace processing in FIG. 11 (step S2 → S3 → SC).
[0055]
In this backspace processing, when it is determined that the key input is displayed by the keyboard K based on the input state data stored in the input state register 49, the write pointer indicating the write position of the input code character buffer 41 is shifted to the top. Is determined in the middle of writing (step C1 → C2).
[0056]
Here, for example, if the "COME" → (space) → "TO" is entered and the "BS" key 32 is operated, the word space is not separated by the "space" key 34. It is determined that data is being written to the input code character buffer 41, and only the code data of the last character “O” stored in the input code character buffer 41 is deleted. At the same time, the key data "TO" stored in the pointer P2 of the real data memory area 46b in the output information area 46 is also deleted at the same time, and only "O" is deleted, and the key data "TO" is also stored in the management data area 46a. The existing data length "2" is also rewritten to "1" (steps C2 → C3, C4).
[0057]
Then, through the output processing in FIG. 7 (steps B1, B2, B3 → B4a, B5), the key data “COMET” is developed in the display work area 50, and the final input is stored in the output area 14b. “COMET” in which only key data “O” has been deleted is displayed (step SB → S2).
[0058]
On the other hand, for example, when the "BS" key 32 is operated after inputting "COME" → (space) → "TO" → (space), the input code characters It is determined that the buffer 41 has been cleared, the write pointer has been returned to the beginning, and the final key data “TO” stored in the pointer P2 of the real data memory area 46b in the output information area 46 is one word ( The attribute data “code”, the pointer data “P2”, and the data length “2” stored in the management data area 46a in correspondence with each other are also deleted (step C2 → C5).
[0059]
At the same time, the word value of the whole word number register 47 is (-1) and rewritten to "1" (step C6).
Then, through the output processing in FIG. 7 (steps B1, B2, B3 → B4a, B5), key data “COME” is developed in the display work area 50, and the last input character is displayed in the output area 14b. “COME” in which the column “TO” has been deleted is displayed (step SB → S2).
[0060]
On the other hand, by touching the keyboard K and inputting "COME" → (space) → "TO" → (space), and then displaying it in the output area 14b, next, handwritten character data is input. Therefore, when the "switch" key 31 is operated, a handwriting input board P is displayed on the input area 14a of the touch panel 14 as shown in FIG. 3B, and the input standby state is established (steps S3 → S4 → SB). → S2).
[0061]
Here, when the input area 14a is touched, it is determined that the handwriting input state is displayed by displaying the handwriting input board P, and the process proceeds to the handwriting input process in FIG. 8 (step S3 → SD).
[0062]
In the handwriting input process, when, for example, "My" is handwritten on the handwriting input board P with a touch pen, a locus associated with the handwriting input is sampled at regular intervals as coordinate data (x, y). Is done. At this time, it is always determined whether the pen has been released and whether or not the input position has exceeded the scroll start line L. If the pen has exceeded the scroll start line L, “1” is set in the scroll flag register 44. (Step D1 → D2 → D3).
[0063]
The coordinate data (x, y) sampled in accordance with the handwriting input includes only the x-coordinate of the scroll width stored in the ROM 22 and the scroll processing stored in the scroll count register 45 in the RAM 23. Is corrected based on the number of times (step D4).
[0064]
During the input of the handwritten data "My", the scroll flag is not set because the scroll start line L is not exceeded, and the scroll count register 45 is set to "0". The coordinate data (x1, y1) (x2, y2)... (Xn, yn) of the input trajectory to be sampled are not substantially corrected. Then, the input current coordinates are compared with the previous coordinates, and only when it is determined that they are different, the newly updated coordinate data is sequentially stored in the handwriting buffer 42 in the RAM 23 (steps D2 → D4, D5 →). D6).
[0065]
Then, the line image data connecting the coordinate data (x1, y1) (x2, y2)... (Xn, yn) stored in the handwriting buffer 42 is sequentially written to the echo back display buffer 43, and The locus of “My” accompanying the handwriting input is drawn and displayed on the handwriting input board P (step D7 → S5).
[0066]
When the handwriting data "My" is handwritten and the touch pen is separated from the handwriting input board P, the absence of input coordinate data is sampled, and it is determined whether or not the last time the pen was released. If not, the scroll flag register in the RAM 23 is determined. It is determined whether or not the scroll flag “1” is set in 44 (step D1 → D8 → D9).
[0067]
In this case, since the scroll flag is not set at the time when the "My" is handwritten, the coordinate data (x1, y1) (x2, y2)... (Xn, yn) of the handwritten data "My" is set. Subsequently, the pen release code (FF, FF) is stored in the handwriting buffer 42 (step D9 → D12).
[0068]
Further, in the handwriting input process, when it is determined that the input position is beyond the scroll start line L when handwriting the “O” of “Office” to the handwriting input board P in the same manner as described above. , "1" is set in the scroll flag register 44 (steps D1 → D2 → D3).
[0069]
During the input of the handwritten data “O”, the scroll flag is set, but the scroll count register 45 is still set to “0”, so that the coordinate data (xn + 1, xn + 1, yn + 1) (xn + 2, yn + 2)... (xm, ym) are not subjected to any substantial correction, and only the newly updated coordinate data for which the previous coordinates and the current coordinates are determined to be different are sequentially stored in the handwriting buffer 42 in the RAM 23. (Steps D2 → D3, D4, D5 → D6).
[0070]
Then, line image data connecting the coordinate data (xn + 1, yn + 1) (xn + 2, yn + 2)... (Xm, ym) stored in the handwriting buffer 42 is sequentially written into the echo back display buffer 43, and The locus of “O” accompanying the handwriting input is drawn and displayed on the handwriting input board P (step D7 → S5).
[0071]
When the handwritten data "O" is handwritten and the touch pen is released from the handwritten input board P, the scroll flag "1" is set in the scroll flag register 44 in the RAM 23 at the time when the pen release is sampled. Is determined, the number of scrolls stored in the number-of-scrolls register 45 in the RAM 23 is read out, and it is determined whether the maximum number of scrolling operations previously stored in the ROM 22 has been exceeded (step S1). D1 → D8 → D9 → D10).
[0072]
In this case, since the number of times of the scroll processing stored in the scroll number register 45 is “0”, it is determined that the maximum possible number of times of the scroll processing (three times) has not been exceeded. The display range of the inserted handwritten image data on the handwritten input board P is scrolled according to a predetermined scroll width stored in the ROM 22 in advance. At the same time, the scroll count value in the scroll count register 45 is incremented by (+1) and set to "1", and the scroll flag register 44 is reset to "0" (steps D10 to D11).
[0073]
Then, following the coordinate data (xn + 1, yn + 1) (xn + 2, yn + 2)... (Xm, ym) of the handwritten data "O", the pen release code (FF, FF) is stored in the handwriting buffer 42 (step D12). ).
[0074]
Next, as shown in FIG. 3C, when "fice" is handwritten after the handwritten data "O", each coordinate data and pen release code are handwritten according to the same handwriting input processing as described above. The data is stored in the buffer 42. Then, line segment image data connecting the coordinate data is sequentially written into the echo back display buffer 43, and "ffice" is displayed following the scroll-displayed handwritten data "O" on the handwritten input board P. You.
[0075]
In this case, each piece of coordinate data stored in the handwriting buffer 42 corresponding to the handwritten data “ffice” after the scroll processing is stored in the ROM 22 and the scroll count value “1” stored in the scroll count register 45 in advance. Since the x-coordinate is corrected based on the predetermined scroll width, the drawing position of the handwritten data “ffice” after the scroll processing overlaps the drawing position of the handwritten data “My” before the scroll processing. It won't.
[0076]
Thus, in accordance with the handwriting input process (step SD) and the echo back display process (step S5), the handwriting data “My Office” and the handwriting data are written on the handwriting input board P as shown in FIGS. When a delimiter operation is performed in units of one word with the “space” key 34 in a state where the input is made and the input locus is displayed, the process shifts to the handwriting / output conversion process in FIG. 9 (step S3 → SE).
[0077]
In the handwriting / output conversion processing, first, each coordinate data corresponding to the handwriting data “My Office” stored in the handwriting buffer 42 in the RAM 23 according to the handwriting input processing on the handwriting input board P on the input area 14 a of the touch panel 14. (X1, y1) (x2, y2)... Are converted into relative coordinates corresponding to the output area 14b as shown in FIG. 10 (step E1).
[0078]
That is, the coordinate data (x1, y1) (x2, y2)... Corresponding to the handwritten data are coordinates with the origin at the upper left end of the tablet 13, and these are output areas according to the following equation (1). The coordinate data of the handwritten data after the coordinate conversion is converted into relative coordinates having the left end of 14b as a starting point Q (0, 0), and is stored in the handwriting buffer 42 again.
[0079]
[(X-Xmin), (y-Ymin)] Expression (1)
At the same time, in the management data area 46a in the output information area 46 in the RAM 23, as shown in FIG. 4B, the attribute "handwriting" of the handwritten data "My Office" delimited in units of one word. , Pointer "P3" and data length "60" are written (step E2).
[0080]
In this case, the data length "60" of the handwritten data "My Office" indicates that a series of coordinate data stored in the handwritten buffer 42 has been written over 60 bytes.
[0081]
Then, a series of coordinate data of the handwritten data stored in the handwritten buffer 42 is transferred to the real data memory area 46b in the output information area 46 as shown in FIG. While the contents are cleared, the contents of the echo back display buffer 43 are also cleared (step E3).
[0082]
Then, the word value stored in the whole word number register 47 is incremented by (+1) and updated to "3" (step E4).
Thus, each relative coordinate data corresponding to the handwritten data "My Office" is stored in the actual data memory area 46b of the output information area 46, and its attribute, pointer, and data length are written in the management data area 46a. When the whole word numerical value is updated, the processing shifts to the output processing in FIG. 7 (step SE → SB).
[0083]
In this output processing, the display work area 50 in the RAM 23 is initialized, and the handwritten data “My Office” stored in the real data memory area 46b of the output information area 46 is managed in the management data area 46a. The data is read according to the pointer data "P3" and the attribute data is determined as "handwriting" (steps B1, B2, B3).
[0084]
Then, a series of coordinate data constituting the handwritten data “My Office” read from the real data memory area 46b of the output information area 46 is obtained by the input height a of the input area 14a and the input height a of the output area 14b according to the following equation (2). The coordinate value is corrected to a value corresponding to the ratio of the output height b, developed and written in the display work area 50, and as shown in FIG. 3D, the key data "COME TO" is stored in the output area 14b. (Steps B3 → B4b, B5 → S2).
[0085]
(X, y) ← [{x × (b / a)}, {y × (b / a)}] Equation (2)
On the other hand, if the user wants to delete the handwritten data echo-back displayed on the handwriting input board P by operating the handwriting input board P during the handwriting input processing, After the operation, in each of the cases where it is desired to delete the handwritten data which has been subjected to the coordinate conversion and displayed on the output area 14b, when the "BS" key 32 is operated, the processing shifts to the back space processing in FIG. ).
[0086]
In this backspace processing, when it is determined that the handwriting input is displayed by the handwriting input board P based on the input state data stored in the input state register 49, the writing pointer indicating the writing position of the handwriting buffer 42 is set to the top. Or in the middle of writing (step C1 → C7).
[0087]
Here, as shown in FIG. 3B and FIG. 3C, for example, when the “BS” key 32 is operated during the handwriting input of “My Office”, one word by the “space” key 34 is input. Since the unit dividing operation is not performed, it is determined that the writing pointer of the handwriting buffer 42 is in the middle of writing, and the coordinate data sampled corresponding to the immediately preceding handwriting input position is deleted from the handwriting buffer 42. At the same time, the write pointer of the handwriting buffer 42 is decremented by (-1) (step C7 → C8).
[0088]
Then, based on the coordinate data deleted in the handwriting buffer 42, the last one line segment image data of the handwritten data echo-back displayed is deleted and displayed again (step C9 → S2).
[0089]
On the other hand, as shown in FIG. 3D, for example, after the handwriting input of “My Office”, the user performs a delimiter operation in word units by the “space” key 34 and then touches the “BS” key 32, Since the handwritten data is displayed in the output area 14b, and the handwritten buffer 42 is cleared and the pointer is returned to the head, the final handwritten data stored in the pointer P3 of the real data memory area 46b in the output information area 46 is displayed. The data “My Office” is deleted in units of one word (character string). Then, the attribute data “handwritten”, the pointer data “P3”, and the data length “60” stored in the management data area 46a are also deleted (step C7 → C5).
[0090]
At the same time, the word value of the entire word number register 47 is (-1) and rewritten to "2" (step C6).
Then, after the output processing in FIG. 7, only the key data “COME TO” is developed in the display work area 50, and the final input character string “My Office” is deleted in the output area 14b. "COME TO" is displayed (step SB → S2).
[0091]
On the other hand, as shown in FIG. 3D, with the handwritten data "My Office" displayed in the output area 14b, the "switch" key 31 is again operated to input character data by key operation. Then, the keyboard K is displayed again in the input area 14a of the touch panel 14, and a state of waiting for a key input is made (step S3 → S6).
[0092]
Then, based on the input state data stored in the input state register 49 in the RAM 23, it is determined that the key input state is the display of the keyboard K, and the process returns to the key input processing in FIG. 6 (step S3 → SA). .
[0093]
Up to this point, the input of key characters using the keyboard K has been described, but a menu display of fixed phrases may be used instead of the keyboard K.
For example, as a fixed phrase "meeting is," call this fixed phrase, and then add handwritten characters such as "10 o'clock" or "Shibuya", you can create a message with simple effort and send it to the other party can do.
[0094]
Therefore, according to the portable information communication device equipped with the input device having the above-described configuration, when key data is input by operating the keyboard K displayed on the input area 14a of the touch panel 14, each character code data is stored in the RAM 23. The attributes, storage pointer, and data length are stored in the real data memory area 46 in the output information area 46, and the attributes, the storage pointer, and the data length are written in the management data area 46a. The handwritten input board P displayed in the input area 14a is operated. When handwritten data is input, coordinate data sampled at a constant period corresponding to the input locus is stored in the real data memory area 46, and its attributes, storage pointer, and data length are written in the management data area 46a. In rare cases, the actual data and its management data stored in the output information area 46 Based on this, the handwritten data composed of the key data composed of the character codes and the image data composed of the set of coordinates is displayed together in the output area 14b of the touch panel 14, so that the keyed code character string and the handwritten Can be input and displayed by the same processing.
[0095]
In the present embodiment, the management data and the actual data are separately stored in the output information area 46. However, instead of such a pointer format, a storage format of continuous data of the actual data and the delimiter code may be used.
[0096]
Similarly to the key data input on the keyboard K, the handwritten data input on the handwriting board p is stored in the real data memory area in the output information area 46 every time a word is delimited by the “space” key 34. A new pointer is set and stored in 46b, and the stored pointer is stored and managed in the management data area 46a. Therefore, when the "BS" key 32 is operated to instruct data deletion, the set of input coordinates is Even handwritten data stored as image data can be deleted as a series of word-based data.
[0097]
As a delimiter, a means for detecting that a certain time has passed since the pen was released without using the “space” key 34 may be provided, and a delimiter may be made when it is detected that there is no input for a certain time.
[0098]
The operation may be not only deletion, but also movement and copying in word units.
Further, in the state of handwriting input in which the handwriting input board P is displayed on the input area 14a of the touch panel 14, if the handwriting input position is beyond the scroll start line L and the pen separation is detected, the handwriting input up to that point will cause the aforementioned handwriting input. Since the display range of the handwritten image data echo-back displayed on the handwriting input board P is scrolled and displayed according to a predetermined scroll range previously stored in the ROM 22, even long continuous handwritten data can be easily input. Can be.
[0099]
The scroll width and the scroll start position may be set by the user, and the display of the scroll start position may be in another display mode or may not be displayed.
Further, when the number of times of scrolling is limited, the fact that scrolling can no longer be performed can be notified by a special display.
[0100]
【The invention's effect】
As described above, according to the first input device of the present invention, when key code data or handwritten image data is input while instructing data division, and data erasure is instructed, if data is being input, Last input in input bufferLast input line data of key code data or handwritten image dataIs erased, and after the delimitation instruction, the final data of the key code or handwritten image data stored in the memory is erased in divided units. Can be deleted.
[0101]
According to the second input device of the present invention,When inputting handwritten image data while instructing data delimitation and instructing data erasure, if input is being performed, the last input line segment constituting image data in the input buffer is erased, and if after delimitation instruction, Since the entire last divided image data stored in the memory is erased, different image data can be deleted according to the input situation.Become.
[Brief description of the drawings]
FIG. 1 is a front view showing the external configuration of a portable information communication device equipped with an input device according to an embodiment of the present invention.
FIG. 2 is a block diagram showing a configuration of an electronic circuit of the portable information communication device.
3A and 3B are diagrams illustrating an input display and an output display state on the touch panel of the portable information communication device, and FIG. 3A is a diagram illustrating an output display state of key data input along with a key input process; FIG. (B) is a diagram showing a display state of a scroll start line L accompanying the handwriting input process, and FIG. (C) is a diagram showing a scrolling state of handwritten data accompanying the handwriting input process, and FIG. FIG. 3 is a diagram showing a display state of handwritten data output input according to handwriting input processing.
FIG. 4 is a diagram showing a configuration of a data register provided in a RAM of the portable information communication device.
FIG. 5 is a flowchart showing a character input process in the portable information communication device.
FIG. 6 is a flowchart showing a key input process accompanying a character input process of the portable information communication device.
FIG. 7 is a flowchart showing an output process accompanying a character input process of the portable information communication device.
FIG. 8 is a flowchart showing a handwriting input process accompanying the character input process of the portable information communication device.
FIG. 9 is a flowchart showing a handwriting / output conversion process accompanying the character input process of the portable information communication device.
FIG. 10 is an exemplary view for explaining a coordinate conversion process corresponding to an output area of handwritten data accompanying the handwriting / output conversion process of the portable information communication device.
FIG. 11 is a flowchart showing a backspace process accompanying the character input process of the portable information communication device.
[Explanation of symbols]
11: Communication device body, 12: Liquid crystal display panel, 12a: Display driver, 13: Tablet, 13a: Tablet control unit, 14: Touch panel, 14a: Input area, 14b: Output area, 15: Key input unit, 15a: " ON "key, 15b ..." input "key, 15c ..." send "key, 15d ..." receive "key, 15e ..." confirm "key, 15f ... cursor key, 21 ... control unit (CPU), 22 ... ROM, 23 ... RAM, 24 ... Wireless unit, 25 ... Antenna, 31 ... "Switch" key, 32 ... "BS" key, 33 ... "Line feed" key, 34 ... "Space" key, K ... Keyboard, P ... Handwriting input board, L: scroll start line, 41: input code character buffer, 42: handwriting buffer, 43: echo back display buffer, 44: scroll flag register , 45: scroll count register, 46: output information area, 46a: management data area, 46b: actual data memory area, 47: total word number register, 48: cursor position register, 49: input state register, 50: display work area .

Claims (4)

Data input means for inputting key code data and handwritten image data,
Delimiter instructing means for delimiting data,
An input buffer for holding data being input by the data input unit until a delimiter is instructed by the delimiter instructing unit,
A memory in which the key code data or the handwritten image data held in the input buffer is sequentially stored in units delimited by the delimiter instructing unit, when the delimiter is instructed by the delimiter instructing unit,
Erasure instructing means for instructing erasure of data;
In response to the data erasure instruction by the erasure instruction means, if input is being performed by the data input means, the final input key code data in the input buffer or the final input line data of the handwritten image data is erased. And an erasing means for erasing the last data of the key code or handwritten image data stored in the memory in divided units. The data input means comprises a display device and a coordinate input device integrated with each other, and switches and displays a keyboard when inputting key code data and a handwriting input board when inputting handwritten image data. The input device according to claim 1, wherein Handwritten image data input means,
Delimiter instructing means for delimiting data,
An input buffer for holding image data being input by the handwritten image data input means until a delimitation is instructed by the delimiter instructing means,
A memory in which handwriting image data held in the input buffer is sequentially stored in units separated by the delimiter instructing unit, when a delimiter is instructed by the delimiter instructing unit;
Erasure instructing means for instructing erasure of data;
In response to the data erasure instruction by the erasure instruction means, if the data is being input by the data input means, the last input line constituting the image data in the input buffer is erased. And an erasing means for erasing the entire last divided image data stored in the input device. The handwritten image data input means integrates a display device and a coordinate input device, and a display area of the display device is an input display for displaying image data being input held in the input buffer as a handwritten locus. 4. The input device according to claim 3, wherein the input device is divided into an area and an output display area for displaying image data stored in the memory.

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