JP3014612U - Handwritten image transceiver - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to transmit to the partner device in real time while following a figure or character written by hand on the display screen, and display a figure or character that follows the drawing of the figure and character drawn by the transmission partner. An object of the present invention is to obtain a handwritten image transmission / reception device that can be used. [Structure] When the absolute coordinate value input from the touch panel 5 side is not continuous with the previous absolute coordinate, the starting point determining means 17 transmits the absolute coordinate value as it is to the other side as the drawing starting point. The dot position setting means 21 sets the starting point to the center of the 4-bit 9-way matrix table of the conversion table 19, and when the input absolute coordinates are continuous to the previous absolute coordinates, the dot coordinate output output means 23. Transmits the 4-bit data of the matrix table corresponding to the coordinate position to the other party.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a handwriting display image communication device, and particularly, transmits an image to be drawn to the other party in real time as the input pen is drawn, and displays the image accompanying the other party's input pen to be drawn in real time. The present invention relates to a handwritten display image communication device.

[0002]

[Prior art]

 FIG. 8 is an external view of a conventional general handwritten image transmission device. In the conventional handwritten image transmission device, when a figure or a character is drawn by the input pen 5 on the touch panel 3 attached to the LCD 1, the XY absolute dot coordinate values on the touch panel are read and transmitted by the accumulation method. It was

In this storage method, for example, it is assumed that a touch panel whose dot arrangement on the XY coordinate axes corresponds to 480 dots on the Y axis and 640 dots on the X axis is used, and the absolute coordinates of figures or characters on one screen at that time (Y ₀ , x ₀ ), (y ₁ , x ₁ ) ... (y ₅ , x ₅ ) ... are obtained as (98,50), (95,55) ... (80,60) .. Then, these values are temporarily accumulated to obtain one screen of data. Then, upon transmission, it was binarized and transmitted as (01100010, 00110010), (0101111, 010110111) ... (01010000, 00111100).

There is also a phone for a deaf person developed for the deaf person. This type of rowa phone has a function of visually displaying dial tone, ringing tone, busy tone, etc., and adopted the above-mentioned handwritten transmission system to enable writing. .

Further, some handwritten video transmission apparatuses have a difference method. In this difference method, the trajectory of the input pen is sampled at regular intervals, the difference between the absolute coordinates of the previous dot and the absolute coordinates of this time is calculated, and this difference is binarized as the amount of change (vector). It was a transmission method.

[0006]

[Problems to be Solved by the Invention]

 However, the transmission speed of a telephone line switch is generally set to any one of 24400 bps, 19200 bps, 4800 bps, and 2400 bps. Even if the data is digitized and sent, the other party can follow and display it, but if it is about 2400 bps, when the display is 640 dots on the X-axis and 400 dots on the Y-axis, 1 dot is expressed in absolute coordinates, and XY is 10 You need about a bit.

Therefore, as in the conventional case, the dot coordinate values of one screen figure or character drawn by the input pen on the touch panel are scanned and accumulated while being read, and the data for one screen is collected. If the binarized data for the screen is transmitted sequentially, the image when drawing a figure or a character cannot be transmitted in real time to the other party, so there is a problem that it cannot follow.

In addition, a conventional dewar phone also scans the dot coordinate values of a graphic or character on one screen drawn by the input pen on the touch panel, accumulates them while scanning them, and stores them for one screen. Since the binarized data for one screen was transmitted sequentially after the data was collected, the problem that the image when drawing figures or characters could not be transmitted in real time to the other party. was there.

Further, in the conventional difference method, the trajectory of the input pen is sampled at regular time intervals, the difference between the absolute coordinates of the previous dot and the absolute coordinates of this time is calculated, and this difference is calculated as a change amount (vector ), The higher the drawing speed of handwriting, the larger the amount of change, and an error occurs between the handwritten video displayed on the other side and the handwritten video on the transmitting side. There was a problem.

The present invention has been made to solve the above problems, and it is possible to transmit to a partner device in real time while following a figure or a character handwritten on a display screen, and a figure drawn by a transmission partner. Another object of the present invention is to obtain a handwritten image transmitting / receiving device capable of displaying a figure or a character that follows the drawing of the character.

[0011]

[Means for Solving the Problems]

 A handwritten image transmitting / receiving apparatus according to the present invention has a touch panel for outputting an absolute coordinate value corresponding to a touch position of an input pen on a display device, and when the absolute coordinate value is input, the display device corresponding to the coordinate value. In a handwritten image transmission / reception device that has a computer that displays the dots of and also transmits the absolute coordinate value to the other side, the computer will draw the start point of the drawing when the absolute coordinate value is not continuous with the previous absolute coordinate. As an absolute value, the absolute coordinate value is transmitted to the other side, and when the absolute coordinate continues to the previous absolute coordinate, 4-bit data of the preset matrix table corresponding to the coordinate position is transmitted. Is.

Further, when transmitting from the other side, the start point is output to the display, and the 4-bit data is sequentially added to the start point, and the added absolute coordinates are sequentially output to the display. It is a thing.

[0013]

[Action]

 In the present invention, when the absolute coordinate value input from the touch panel side is not continuous with the previous absolute coordinate value, the absolute coordinate value is transmitted as it is to the other side as the drawing start point.

Next, the starting point is set to the center of a 4-bit matrix table of 9 ways, and when the input absolute coordinate is continuous to the previous absolute coordinate, the matrix corresponding to the coordinate position is input. The 4-bit data of the table is transmitted to the other party.

In the case of transmission from the other party, the start point is output to the display and the dot of the absolute coordinate corresponding to the start point of the display is turned on. When the absolute coordinates are the same as the previous absolute coordinates, the sent 4-bit data is sequentially added to the start point, and the added absolute coordinates are sequentially output to the display unit, which corresponds to the display unit. The dots for the absolute coordinates to be turned on are sequentially turned on.

[0016]

【Example】

 First Embodiment FIG. 1 is a schematic configuration diagram of a first embodiment, which has at least the following configuration. In the figure, 1 to 5 are the same as above. 7 is an LCD controller. Upon activation, the LCD controller 7 causes the LCD 3 to display the display format shown in FIG. 5, and along with the input of the X and Y dot coordinates, the X and Y electrodes of the LCD 7 corresponding to the coordinate values are driven to issue an erase instruction. When there is, erase your own graphic or character (hereinafter collectively referred to as display data) that was previously displayed.

When there is a calling signal, the LED 7a is pulse-lit, and when there is a talking signal, the LED 7b is illuminated.

Reference numeral 9 is a scan controller. The scan controller 9 scans the X and Y electrodes of the touch panel 5 at regular intervals, converts the state of each electrode at this time into a predetermined number of bit values, and outputs the bit values to the computer unit via the I / F 11.

The computer section has at least the following program configuration. Reference numeral 13 is a transmission determination means. When the data from the I / F 11 is a telephone instruction, the transmission judging means 13 judges that the data is a transmission, puts the modem 25 into the transmission state, and outputs the input telephone number to the modem 25.

Reference numeral 15 is a handwriting determination means. The handwriting determination means 15 activates the start point determination means 17 when the data from the I / F 11 is a handwriting instruction.

The start point determination means 17 determines continuity based on the absolute coordinates from the I / F 11 and the previous absolute position, and when they are not continuous, the absolute coordinates of the start point ( (X, Y) is output to the modem 25 as it is, and if it is continuous, it is output to the dot position setting means 21 with the addition of continuous absolute coordinates.

Reference numeral 19 is a conversion table. The conversion table 19 is formed into a matrix of nine types, and is made into 4-bit binarized data corresponding to the change of the XY coordinate for each unit coordinate. For example, when the upper part of the LCD is used as a coordinate axis, the change of the coordinate with respect to the previous XY coordinate is (X = 0, Y = 0), (X = 0, Y = + 1), (X = 0, Y = -1), (X = + 1, Y = 0), (X = + 1, Y = + 1), (X = + 1, Y = -1), (X = -1, Y = 0), (X = -1, Y = + 1), (X = -1, Y = -1), and as shown in FIG. 3, "0000", "0001", "0010", "0100", " The numerical values are 0101 "," 0110 "," 1000 "," 1000 ", and" 1010 ". It should be noted that this matrix is stored by a mathematical expression and shows nine values.

Reference numeral 21 is a dot position setting means. The dot position setting means 21 has a memory format corresponding to the conversion table 19, and each time the absolute coordinates (X, Y) from the start point determination means 17 is input, a flag is set in the center of the memory format. When the absolute coordinates are continuous, the position of the memory format is determined based on the previous absolute coordinates, and a flag is set in the memory format area corresponding to the determined position.

Reference numeral 23 is a dot coordinate output means. Each time the memory format of the dot position setting means 21 is flagged, the dot coordinate output means 23 reads the 4-bit data of the flagged conversion table 19 and, via the modem 25, the other side. To be transmitted. However, the data in the center of the memory format is not read.

Reference numeral 27 is a handwriting determination means for reception. The handwriting determination means 27 activates the reception start point determination means 19 when the data from the modem 25 is a handwriting instruction.

The start point determination means 29 determines continuity based on the absolute position of the received dot data and the previous dot data, and when they are not continuous, the handwriting start is determined as the absolute coordinates of the start point. (X, Y) is output as it is to the LCD controller 7, and is also set in the display coordinate updating means 31. If they are continuous, it is added to the continuous dot coordinates and output to the display coordinate updating means 31.

Reference numeral 31 is a display coordinate updating means. The display coordinate updating means 31 adds new absolute coordinates X to the absolute coordinates Xo and Yo that have been set, each time continuous dot coordinates Xa and Ya (made into 4-bit data) are input. , Y, and output them to the LCD controller 7.

FIG. 4 is an explanatory diagram for explaining the operation of this embodiment. In this example, the case where the input pen is drawn at 45 degrees with respect to the X and Y axes will be described. For example, when an image is drawn on the display using an input pen, the scan controller 9 reads the absolute coordinates per unit of the touch panel 5 accompanying this drawing and outputs it to the computer section.

Then, the start point determination means 17 determines whether or not it is the start point, and when it is the start point (X o, Yo), it is transmitted to the other party through the modem 25 as it is.

Further, the dot position setting means 21 sets a flag at the center of the memory format as a position corresponding to this start point (Xo, Yo) (a in FIG. 4). That is, the starting point (Xo, Yo) is set at the center of the memory format (hereinafter referred to as the reference point).

Then, when the next absolute coordinate (X1, Y1) is input, the dot position setting means 21 determines continuity with the previous absolute position, and when continuous, based on the conversion table 19, , The change in coordinates is (X = 0, Y = 0), (X = 0, Y = + 1), (X = 0, Y = -1), (X = + 1, Y = 0) with respect to the reference point. ), (X = + 1, Y = + 1), (X = + 1, Y = −1), (X = −1, Y = 0), (X = −1, Y = + 1), (X = −1) , Y = -1), and a flag is set in the determined memory format area (b in FIG. 4).

Then, the dot coordinate output means 23 outputs the bit value of the conversion table 19 corresponding to the flagged memory format area to the modem 25. In this example, assuming that X1 = + 1 and Y1 + 1, 4-bit “0101” is transmitted to the other party (b in FIG. 4).

Then, the dot position setting means 21 clears the flags corresponding to X1 and Y1 and instead sets the flag at the reference point in the memory format (c in FIG. 4), that is, the previous position as the reference point. To update.

When the next absolute coordinate (X2, Y2) is input, the dot position setting means 21 determines continuity based on the previous absolute position, and if continuous, the dot position setting means 21 determines the coordinate based on the conversion table 19. With respect to the reference point, the change is (X = 0, Y = 0), (X = 0, Y = + 1), (X = 0, Y = -1), (X = + 1, Y = 0), ( X = + 1, Y = + 1), (X = + 1, Y = -1), (X = -1, Y = 0), (X = -1, Y = + 1), (X = -1, Y = -1) is determined, and a flag is set in the determined memory format area (d in FIG. 4).

Then, the dot coordinate output means 23 outputs the bit value of the conversion table 19 corresponding to the flagged memory format area to the modem 25. In this example, assuming that X1 = + 1 and Y1 + 1, 4-bit “0101” is transmitted to the other party.

[0036] For example, the transmission side as shown in FIG. 6 and receiver line is tied, the sender draws a "hello" in the input pen, if the starting point, as it phases hand side the absolute coordinates When it is continuous, the drawing coordinates converted into 4-bit values by the process shown in FIG. 4 are transmitted.

[0037] Therefore, in the other side, it means that to display the "Hello" at a speed corresponding to the draw of the input pen on the transmitting side, to be able to communicate in the same sense and to communicate with the other party with a voice Become.

Next, the reception process will be described. When the data received via the modem 25 is handwritten data, the reception start point determination means 29 determines whether the data is absolute coordinates. In the case of absolute coordinates, it is output to the LCD controller 7 as a start point and the corresponding dot of absolute coordinates of the LCD 3 is turned on.

Then, when the next received data is continuous with the previous start point, it is output to the display coordinate updating means 31. The display coordinate updating means 31 adds new absolute coordinates Xo and Yo each time Xa and Ya (which are set to 4-bit data) are input to obtain new absolute coordinates X and Y to obtain LCD. Output to the controller 7. Therefore, the 4-bit drawing position is added to the absolute coordinates.

That is, when the communication line is a telephone line, the transmission is generally serial transmission. However, according to the present invention, the coordinate value when the input pen is placed is not converted but is transmitted as it is. As for the transmission, since 9 combinations are transmitted with 4 bits as described above, the transmission amount is remarkably small, so that even if the transmission rate of the line is 2400 bps, the transmission is performed in real time.

Second Embodiment FIG. 7 is a schematic configuration diagram of the second embodiment. In the figure, 1 to 11 are the same as those in FIG. Computer 40, at least the same transmission determination means 13, handwriting determination means 15, start point determination means 17, conversion table 19, dot position setting means 21, dot coordinate output means 23, handwriting determination means 27, start of ROM 42 as described above. The same operation as in FIG. 4 is performed on the basis of the program including the point determining means 29, the display coordinate updating means 31, and the like. The memory format of the dot position setting means 21 uses RAM43. Reference numeral 47 is a connector for connecting to a telephone line, 48 is a connector for connecting a line to the FAX, and 49 is a pseudo exchange for connecting a line to the FAX again. Reference numeral 50 is a manual switch for selecting either telephone or FAX.

That is, the method of transmitting the drawing of the input pen by 4 bits by operating the manual switch 50, and the data from the FAX side can be sent to the partner, and the FAX data from the partner side can be sent to the FAX. be able to.

A telephone may be used instead of the FAX. In other words, a telephone can be used in combination with a telephone that has been used conventionally.

When used for a deaf phone, the display data drawn on the liquid crystal display of the own station is displayed in real time on the liquid crystal display of the deaf phone for the other party. , You can communicate as if you were calling by voice.

Further, in the above embodiment, the Y-axis direction is described as the upward direction of the screen, but it may be reversed.

[0046]

[Effect of device]

 As described above, according to the present invention, when the absolute coordinate value input from the touch panel side is not continuous with the previous absolute coordinate value, the absolute coordinate value is transmitted as it is to the other side as the drawing start point. At the same time, it is used as the center of a 4-bit 9-way matrix table, and when the input absolute coordinates are continuous with the previous absolute coordinates, the 4-bit data of the matrix table corresponding to that coordinate position is sent to the other side. By transmitting the data, the absolute coordinates drawn by the input pen are sequentially transmitted with a small transmission amount of 4 bits, which has the effect of being able to send to the other party in real time.

When transmitting from the other side, the start point is output to the display unit as it is, the dot of the absolute coordinate corresponding to the start point is turned on, and if it is continuous to the previous absolute coordinate, The 4-bit data sent is added sequentially to the start point, and the dots of the absolute coordinates of the display corresponding to the added absolute coordinates are turned on in sequence, so it is possible to draw with 4-bit data, for example. Even if the accompanying data is sent, the effect is that it can be faithfully reproduced.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a first embodiment.

FIG. 2 is an explanatory diagram of a conversion table.

FIG. 3 is an explanatory diagram of a conversion table.

FIG. 4 is an explanatory view explaining the operation of the present invention.

FIG. 5 is an explanatory diagram of an initial screen of the handwritten image transmission device of the present invention.

FIG. 6 is an explanatory diagram of an example of a display screen by transmission according to the present invention.

FIG. 7 is a schematic configuration diagram of a second embodiment.

FIG. 8 is an external view of a conventional handwritten image transmission device.

[Explanation of symbols]

 1 Input Pen 3 LCD 5 Touch Panel 7 LCD Controller 9 Scan Controller 13 Transmission Judgment Unit 17 Start Point Judgment Unit 19 Conversion Table 21 Dot Position Setting Means 23 Dot Coordinate Output Means 50 Manual Switch

Claims (3)

[Scope of utility model registration request] 1. A display has a touch panel for outputting an absolute coordinate value corresponding to a touch position of an input pen, and when the absolute coordinate value is input, a dot of the display corresponding to the coordinate value is displayed. In addition, in the handwritten image transmitting / receiving apparatus having a computer for transmitting the absolute coordinate value to the other side, the computer, when the absolute coordinate value is not continuous to the previous absolute coordinate, as a starting point of the drawing, The absolute coordinate value is transmitted to the other party, and when the absolute coordinate is continuous with the previous absolute coordinate, 4-bit data of a preset matrix table corresponding to the coordinate position is transmitted. A handwritten image transmission / reception device. 2. When transmitting from the other side, the start point is output to the display, the 4-bit data is sequentially added to the start point, and the added absolute coordinates are sequentially added. , Output to the display device.
The handwritten image transmitter / receiver described. 3. The handwritten image transmission / reception apparatus according to claim 1, wherein the data is a 4-bit numerical value of ± 01 or 0.