JPH09106325A - Electronic terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To more efficiently transmit graphic character data in an electronic terminal equipment with a radio communication function. SOLUTION: Inputted information is converted to coordinate information and the inputted information is transmitted as the change of the coordinates. That is, since the information inputted on a digitizer is detected as the change of the coordonates, it is assumed that a valid motion is present when the change is large and a motion that is not large is not transmitted as an invalid motion, the information to be transmitted is reduced a relative coordinate calculation circuit part 10, a coordinate value judgement circuit part 12 and a first storage part 11).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small electronic terminal device having a wireless communication function, and more particularly to a device using data transmission control utilizing a wireless interface for handwritten characters / graphics.

[0002]

2. Description of the Related Art Conventionally, in an electronic terminal device having a wired communication function, a digitizer capable of pen input,
It has a display screen for displaying image information such as handwritten characters input by the pen.While the pen is in contact with the digitizer, the coordinate position of the pen on the digitizer is read at regular intervals and those coordinate points are read. There is a device that connects the information of (1) with a straight line or a curved line and displays it on a display screen, and transmits the information of coordinate data for the drawing data using a wired interface.

Further, there has been developed a device in which a digitizer for pen input and a liquid crystal screen for display are integrated and data is input while being displayed as if a line is drawn on a paper with a pencil.

In these devices, the coordinate position information read out represents the coordinate position with a fixed origin as a reference, and all coordinate data read out at regular intervals are to be transmitted. Has become.

Regarding the communication function of these devices, since the data is transmitted using the wired interface, the possibility of communication error is not so great. Therefore, receiving confirmation from the sender,
It is important to be able to transmit data to the other party in real time as much as possible, knowing that data will be lost to some extent, without intentionally performing retransmission control automatically.

On the other hand, due to the progress of mobile communication technology, the wireless communication function is shifting from analog transmission to digital transmission. Multiply it,
For example, a portable information terminal that adds digital data transmission by adding a facsimile function to a mobile phone is under study.

It is well known that in the case of wireless data transmission, compared to the case of wired data transmission, the transmission data is prone to errors and the probability of incorrect transmission to the destination is extremely high.

Therefore, in the case of data transmission using radio (radio interface), the transmission data is numbered, and the data is transmitted autonomously or in accordance with a certain rule until the reception confirmation from the destination is obtained for each number. It is common to perform communication using retransmission control so that the same information is transmitted in response to a request from the beginning, and performing such a method is an indispensable technique.

From the above, it was sufficiently possible to construct an electronic terminal device in which handwriting can be input and the drawing data of which can be transmitted using a wireless interface, as compared with the prior art.

[0010]

However, in the conventional electronic terminal device that performs wired data transmission, the information of the absolute coordinate position based on the fixed origin is read, and all the read coordinate data is transmitted. However, it contains a lot of useless data or redundant data, and there is a problem that the transmission efficiency is not improved so much, which is an important issue. For example, in actual transmission, there is a time delay between the contact of the pen and the actual movement of the pen, and the pen may temporarily stop at the apex when drawing a corner. The coordinate information has a displacement amount close to zero. It is unreasonable to transmit these data with little meaning.

This is not a serious problem in transmission using a wired interface with a low transmission error rate, but in performing data transmission using a wireless interface with a high transmission error rate and retransmission control is essential. , A new surface issue.

Further, in the wireless system, since retransmit control is indispensable, it is necessary to hold data until the reception confirmation from the destination is obtained. However, in a device such as a portable information terminal, where portability is important and only a small-capacity memory is provided, if the amount of data waiting for transmission or waiting for confirmation increases, there is a possibility that the memory will not fit in the prepared memory. In that case, if new data is input when the memory is full, there is a problem that either that data or the already stored data is lost.

In view of the above problems, it is an object of the present invention to provide an electronic terminal device having a wireless communication function capable of suppressing the transmission data of handwritten characters / graphics.

A further object of the present invention is to provide an electronic terminal device having a wireless communication function that can transmit handwritten characters / graphics without losing effective data even if it has a small memory capacity.

[0015]

According to the present invention, there is provided a data communication function by wireless communication, an input means to be input by an input means for inputting a user operation, and a display means for displaying input information. In the electronic terminal device, the position reading means for reading out the position of the input means with respect to the input means as absolute coordinate information from a predetermined origin at predetermined time intervals, and the input target from the input means. The stop detection means for detecting that the input to the means has stopped, and the displacement information which is a relative difference from the two absolute coordinate information continuously obtained by the position reading means until the stop detection of the stop detection means is made. A displacement calculating means for calculating, a reference displacement storing means having a predetermined reference displacement value, a displacement determining means for determining that the displacement information is larger than the reference displacement value, After detected by the stop detection means,
Encoding means for regularly encoding the absolute coordinate information constituting the displacement information determined by the output of the displacement determining means as a series of information, and transmitting the encoded information. Then, after that, if the reception confirmation is not obtained, the same transmission is performed again by itself according to a predetermined rule.

Further, the present invention is provided with a data communication function by wireless communication, an input means to be input by an input means for inputting operation by a user, and a display means for displaying the input information. In the electronic terminal device, position reading means for reading the position of the input means with respect to the input means as absolute coordinate information from a predetermined origin at predetermined time intervals, and input from the input means to the input means. Stop detecting means for detecting that the stop has occurred, and displacement for calculating a relative difference as displacement information from two absolute coordinate information continuously obtained by the position reading means until the stop detecting means detects the stop. Calculating means, reference displacement storing means having a predetermined reference displacement value, displacement determining means for determining that the displacement information is larger than the reference displacement value, and the stop detection Encoding means for regularly encoding, as a series of information, the absolute coordinate information constituting the displacement information discriminated by the output of the displacement discriminating means after being detected by the stage. Send the encrypted information,
After that, the same transmission is performed again in response to a request from the transmission destination to retransmit the electronic terminal device.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a configuration example of an electronic terminal device according to an embodiment of the present invention.

Reference numeral 1 is an RF / IF unit, which performs frequency conversion. Reference numeral 2 denotes a modulation / demodulation unit, which is a π / 4 shift 4-phase QPSK
Modulate and demodulate. 3 is a digital signal processing circuit unit,
Digital signal processing such as TDMA processing is performed. 1, 2,
One functional block is configured by 3, and transmission / reception processing of CCH (common control channel) and TCH (speech channel)
The sending and receiving process of is performed. A PHS (Personal Handyphone System) control unit 4 is a block for managing the entire PHS unit. Here, communication protocol processing and switching between call and data communication are performed. 5 is
The changeover switch unit switches between the voice processing circuit unit 6 and the communication data processing circuit unit 17 for performing data communication. Reference numeral 6 denotes a voice processing circuit unit, which is a block including an input / output unit such as a microphone and a speaker and which processes a voice signal. The RF / IF unit 1, the modulation / demodulation unit 2, the digital signal processing circuit unit 3, the PHS control unit 4, the voice processing circuit unit 6 and the like constitute a PHS unit unit 19 which is the basis of PHS. Reference numeral 7 is an antenna for both transmission and reception.

Reference numeral 8 denotes a control signal I / F section, which is a block for performing interface processing between the PHS unit section 19 and the handwriting input unit section 20 and exchanging control data and the like.

An LCD display unit 9 with a digitizer is composed of a digitizer unit and an LCD unit. The digitizer unit performs key input of the man-machine unit and input of handwritten drawing data. When inputting drawing data, the pen 18
It can be detected that a touches the digitizer and that the pen 18a is separated from the digitizer. Further, the X-axis direction component and the Y-axis direction component that go straight to the absolute coordinate position of the pen 18a on the digitizer can be detected at certain intervals. The components can be read separately.

Further, the LCD unit displays drawing data in which the coordinate positions are approximated by a straight line or a curve in the order of input based on the layout of the function keys of the man-machine unit and the absolute coordinate data read from the digitizer unit. indicate. Further, the LCD unit also displays the drawing data transmitted from the communication partner connected by the wireless line.

Reference numeral 10 denotes a relative coordinate calculation circuit section, which indicates a displacement amount from one coordinate position to another coordinate position with a positive / negative sign,
The calculation is performed separately for the X-axis direction component and the Y-axis direction component.
Reference numeral 11 denotes a first storage unit, which is a minimum displacement amount that serves as a reference for determining whether or not to discard the read coordinate data, the number of bits assigned to represent one displacement amount, and the number of coordinate position data handled as one block of information. The maximum value of, the limit value of the free space of the memory that needs to be notified to the user, and the like are stored.
Since the first storage unit 11 is backed up,
Even if the power is turned off, the information stored in it will not be lost.

A coordinate value determination circuit unit 12 determines whether the displacement amount between coordinate positions is larger or smaller than the minimum displacement amount stored in the first storage unit 11. A coordinate extraction circuit unit 13 determines whether or not a certain displacement amount is larger than the maximum displacement amount stored in the first storage unit 11. That is, when the displacement amount is large, the displacement amount is interpolated by extracting the coordinate position where the displacement amount falls within the maximum displacement amount and the displacement amount becomes as large as possible. Reference numeral 14 is a codec circuit unit that assigns a number to a series of coordinate information and constructs data that can be transmitted. A second storage unit 15 temporarily stores the data coded by the codec circuit unit 14.

A memory determination unit 16 determines whether or not the free space in the second storage unit 15 is larger than a specified value. Also,
It also determines whether it is completely empty. A communication data processing circuit unit 17 is a block for delivering the coded drawing data to the PHS unit unit 19 or receiving data such as a retransmission request from the PHS unit unit 19 and performing retransmission control. A handwriting input control unit 18 controls the entire handwriting input unit and performs man-machine processing and the like.

These control signal I / F section 8, LCD display section 9 with digitizer, relative coordinate calculation circuit section 10, first storage section 11, coordinate value judgment circuit section 12, coordinate extraction circuit section 13,
Codec circuit unit 14, second storage unit 15, memory determination unit 16, communication data processing circuit unit 17, handwriting input control unit 1
8 together constitute a handwriting input unit 20.

Although not shown in the figure, other functional blocks such as a power supply block actually exist.

FIG. 2 is a diagram showing an example of an operation screen of the electronic terminal device according to the embodiment of the present invention.

FIG. 6A is a diagram showing the telephone mode screen 21a, and FIG. 6B is a diagram showing the handwriting data transmission mode screen 21b.

In the telephone mode screen 21a shown in FIG. 10A, a ten-key 31 for making a call operation, a call key 22 for making and receiving a call, a disconnect key 23 for cutting off a call, and holding a call are held. Hold key 2 to hold the other party
4. Menu key 25 for performing various switching, memo key 26 for enabling memo input, handwriting transmission key 30 for handwriting input mode, telephone key 27 for switching to telephone, FAX
Function keys such as the FAX key 28 for switching to and the arrow keys 29 are displayed on the LCD and arranged on the digitizer, and each function is realized by pressing each key. The LCD unit is an embodiment of the display means, and is arranged below the digitizer that enables handwriting input such as pen input and finger pressing input, and when the operation according to the LCD display is performed, the desired operation is performed. You can do it.

On the telephone mode screen 21a shown in FIG.
When the handwriting transmission key 30 is pressed when the line is established with the transmission partner, the handwriting data transmission mode screen 21b of FIG. Handwritten data transmission mode screen 23
In this state, handwriting can be input, and the input drawing data is displayed on the screen and transmitted sequentially. On the handwriting data transmission mode screen 21b, the display change key 2
The process of enlarging / reducing the screen display by c or the arrow key 2
A scrolling process of the display screen by 9 is performed.

During transmission of the handwritten input data, the characters being transferred are displayed at the lower right of the screen. Further, using the function key 2b, the line attributes (line type, line width,
It is possible to select the display identification (write data or erase data).

FIGS. 3, 4 and 5 are flow charts showing a handwriting input process, a codec process and a communication control process of an electronic terminal device such as a portable information terminal with a wireless communication function according to an embodiment of the present invention. Hereinafter, an embodiment of the present invention will be described with reference to these flowcharts.

The handwriting input process and the codec process operate independently and are synchronized by passing control information. Further, the codec process and the communication control process also operate independently and are synchronized by referring to the contents of the second storage unit 15.

First, the handwriting input process will be described. Initial setting is performed in step S0. At this time, the PHS control unit 4 detects the transmission rate of the connected wireless line, and the reference displacement amount is initialized by the detection. Here, when the transmission rate is high, the reference displacement amount is set small, so that the data amount can be increased. Further, when the transmission rate is low, the reference displacement amount is increased, so that the data amount is reduced but the transmission time can be suppressed.

In step S1, it is determined whether or not pen down (drawing start) is detected at regular time intervals. When the pen down is detected, in step S2, the start of inputting the coordinate data is transferred to the codec circuit unit 14 as control information, and the absolute coordinate at that time is read from the LCD display unit 9 with a digitizer and the codec circuit unit 14 is read. Register the data in.

Further, the read coordinate data is also passed to the relative coordinate calculating circuit section 10 to prepare for calculating the relative coordinate with the coordinate data to be read next. Here, the reading and registration of the absolute coordinate data is performed directly in X.
This is performed separately for the component in the axial direction and the component in the Y-axis direction.

In step S3, it is determined whether pen-up (drawing end) is detected. If detected, the codec circuit unit 14 is notified that the data input is completed as control information in step S4. After notifying, the process returns to step S1. On the contrary, if the pen-up is not detected, the data of the X coordinate and the Y coordinate of the absolute coordinate position are read from the digitizer-equipped LCD display unit 9 and passed to the relative coordinate calculation circuit unit 10 after a fixed time in step S5.

In step S6, the relative coordinate calculation circuit unit 10
At X, the relative coordinate position between the absolute coordinate newly read from the digitizer-equipped LCD display unit 9 and the absolute coordinate read immediately before, that is, the displacement amount with a plus / minus sign, X
The calculation is performed separately for the component in the axial direction and the component in the Y-axis direction.

In step S7, the coordinate value determination circuit unit 12
In the coordinate value determination circuit unit 12, whether the absolute value of the displacement amount calculated by the relative coordinate calculation circuit unit 10 is smaller than the minimum displacement amount stored in the first storage unit 11 for both the X component and the Y component. Is determined in. If both the X component and the Y component are smaller than the minimum displacement amount, the process returns to step S3 and the coordinate data is truncated. If the determination is reversed, the process proceeds to step S8.

In step S8, it is determined whether or not the absolute value of the displacement amount is larger than the maximum displacement amount of at least one of the X component and the Y component stored in the first storage section 11. If it is determined that at least one of the X component and the Y component is large, in step S10, the coordinate extraction circuit unit 13 determines a coordinate position such that the displacement amount is within the maximum displacement amount and the displacement amount is as large as possible. Extract. Further, the displacement amount between this point and the currently read coordinate is newly calculated. In step S11, the absolute coordinate of the extracted coordinate or the X component of the relative coordinate, Y
Each component is registered in the codec circuit unit 14. Then, the process returns to step S8, and a determination is made regarding the relative coordinates newly calculated by the coordinate extraction circuit unit 13. here,
If it is determined that both the X component and the Y component of the relative coordinates are smaller than the maximum displacement amount, the process proceeds to step S9, and the absolute coordinate position or the relative coordinate position of the current coordinate is registered in the codec circuit unit 14.

Here, a series of steps S8 to S11 will be described with reference to an example. For example, the number of bits representing the displacement amount is 4 bits for each of the X component and the Y component, and among them, 1 bit is a positive or negative sign bit, and 3 bits can be used to represent the absolute value of the displacement amount, that is, the maximum displacement amount is 7 Here is an example of the case. The absolute coordinate position read immediately before is 27 for the X component and 73 for the Y component (hereinafter [27, 73]
If the newly read absolute coordinate position is [44,83], the displacement amount is [17,1
0]. Here, the displacement amount of the Y component when the X component having the larger displacement amount is set to 7 which is the maximum displacement amount is represented by the following equation.

Displacement amount of Y component = 7 * 10/17 = 4 As a result, as new extraction coordinates for complementing between the two points, the absolute coordinate position [34,7] at which the displacement amount becomes [7,4].
7] is taken.

Then, the displacement amount [7, 4] or the absolute coordinate position [41, 81] is registered in the codec circuit section. Similarly, by comparing with the extracted coordinates, the displacement [7,
4] or the extracted coordinates of the absolute coordinate position [41, 81] are registered in the codec circuit unit 14. Furthermore, the displacement amount [3, 2] between the final extracted coordinate position [41, 81] and the read coordinate position, or the read coordinate position [44, 83].
Is registered in the codec circuit unit 14.

In step S12, it is determined whether or not the number of a series of coordinate data registered in the codec circuit section 14 has reached a fixed value. When it reaches a certain value,
In step S13, the control information indicating the data input process is passed to the codec circuit unit 14, and the codec process unit 14 is activated. Further, control information indicating the start of new data input is delivered, and the current absolute coordinate data is registered in the codec circuit unit 14. After that, the process returns to step S3, and the processes from step S4 to step S11 are repeated until pen-up is detected in step S3.

Next, the codec processing will be described with reference to the flowchart of FIG. In step S14, when the control information indicating that the data input is completed is acquired in step S4 and step S13, it is registered in the codec circuit unit 14 in step S2, step S9, step S10, and step S13 in step S15. A series of coordinate data thus obtained is used as a lump for continuous numbering. Also, in this information,
An identifier indicating that this information is drawing data and attribute information of the drawing data (line type, line width, display identification of write data or erase data, etc.) are added. Furthermore, an error correction code,
An error detection code is added.

In step S16, the information coded in step S15 is written in the second storage unit 15, and in step S17, a display indicating that there is data being transferred, that is, waiting for transmission or waiting for reception confirmation is performed. .

In step S18, the second storage unit 1
It is determined whether or not the free space of 5 has become smaller than the specified value. If it is determined that the free space has decreased, a warning is given to the user by starting to sound a buzzer in step S19. If it is determined that the free space is still sufficient, step S19 is skipped. After that, the process returns to step S14 and waits for new data to be processed. Here, since the reading of coordinate data is usually about 40 to 50 times per second at most, the reading interval is about 20 ms, and the codec processing is sufficiently completed within this time. Therefore, in addition to a series of coordinate data, There is no problem if a memory that can register the following 2-3 coordinate data is provided.

Finally, the processing of the communication control unit will be described with reference to FIG. In step S20, the second storage unit 15 is searched to determine whether or not new codec data has been written from the codec circuit unit 14 and there is data waiting to be transmitted. If there is data waiting to be transmitted, the data is delivered to the PHS unit 19 so as to be read from the second storage unit 15 and transmitted in step S21. Then, in step S22, a timer for activating autonomous retransmission is activated.

On the other hand, if there is no data waiting to be transmitted in step S20, steps S21 and S22 are skipped. Then, in step S23, it is determined whether or not the timer activated in steps S22, S25, and S28 has expired. When the timer expires, the codec data stored in the second storage unit 15 is searched for the data with the smallest number,
The data is read and delivered to the PHS unit 19 so as to be retransmitted. At the same time, in step S25,
Restart the timer. If the timer has not expired in step S23 (including the state where the timer is not activated), steps S24 and S25 are skipped.

Then, in step S26, PHS
It is determined whether or not the resend request data is included in the data received by the unit 19 and sent to the communication data processing circuit unit 17. If there is resend request data, in step S27, the data corresponding to the resend request is retrieved from the second storage unit, read out, and handed over to the PHS unit 19 for resending. At the same time, the timer is started in step S28. If the requested data does not exist promptly, steps S27 and S28 are skipped. In step S29, it is determined whether or not the reception confirmation data is included in the data received by the PHS unit 19 and sent to the communication data processing circuit unit 17. If there is reception confirmation data, the corresponding data is deleted from the second storage unit 15.

In step S31, as a result of the deletion, the second
When the free space in the storage unit 15 becomes larger than the specified value, the buzzer turned on in step S19 is turned off. Furthermore,
In step S33, it is determined whether all the codec data has been deleted and the second storage unit 15 has become empty.
If it is empty, the timer is stopped, and in step S35, the in-transfer display turned ON in step S17 is turned OFF. If there is no reception confirmation data in step S29, steps S30 to S35 are skipped. Then, the process returns to step S20 and the same process is repeated.

In this embodiment, when the transfer rate is smaller than the predetermined value, the reference displacement amount stored in the first storage unit 11 is rewritten to a larger value. However, it is determined whether or not this process is performed. The configuration may be selectable.

In the present embodiment, the drawing data is written in the second storage section 15 for the data after the codec, but the data which is only numbered in the state of the raw coordinate data is written. The target configuration may be used.

Further, in the present embodiment, the buzzer is kept ringing as a means for notifying that the free space of the second storage section 15 for storing the drawing data has become small. However, the buzzer is intermittently intermittent. It may be configured to ring.

In the present embodiment, the buzzer is continuously sounded as a means for notifying that the free space of the second storage section 15 for storing drawing data is small, but the screen is displayed in reverse. Is also good. Further, various other methods are conceivable, but it goes without saying that all of them are within the scope of the present invention.

Further, in the present embodiment, the character being transferred is displayed on a part of the screen to indicate that it is being transferred, but a blinking display may be used to make it easier to understand. .

Further, in the present embodiment, the fact that the data is being transmitted is displayed on a part of the screen during the transmission, but a message is displayed when the designated key is pressed. It may be configured to. Also, when an operation that terminates the handwriting transmission mode is performed, such as when the switch key from the handwriting data transmission mode to the telephone mode is pressed, or when the power off key is pressed, the message being transferred is displayed. It can be configured to display and prompt the user to confirm whether it is okay to end the transfer in progress.

[0059]

According to the present invention, the fixed point at a corner or the like is very small or negligible until the pen actually touches the digitizer and starts drawing. In the case where there are many coordinate points that are only displaced, these meaningless data can be eliminated, and the transmission efficiency can be improved.

Then, it is possible to realize data transmission in a more real-time form. Furthermore, by increasing the transmission efficiency, it also leads to a reduction in power consumption, and the battery can be used for a long time without being charged in the case of portable use.

Further, according to the present invention, the amount of data can be greatly reduced by obtaining the coordinate data as a difference in displacement by a relative value.

Furthermore, according to the present invention, when the displacement amount is large, that is, when many pen movements are made in a predetermined time, the interpolation data obtained by division can prevent data loss. .

If the information becomes too long in one stroke, the communication control unit may have a vacant time between data inputs. Therefore, according to the present invention, this free time can be efficiently used by suppressing the amount of information to a certain value or less. Thereby, it is possible to approach real-time transmission. Furthermore, if the data is long, there is a high possibility that an error will occur and the data will not reach the other party easily. It is possible to reduce such an unfavorable state.

In the present invention, since the amount of information for one time is limited, the memory amount of the codec unit can be limited and the configuration of the codec circuit unit can be simplified.

Further, according to the present invention, since the minimum displacement amount can be automatically adjusted by the transfer rate, the transmission efficiency can be improved even when the transfer rate is low, and the real time transmission can be approximated.

Furthermore, according to the present invention, the transmission data is deleted when the reception confirmation from the other party is confirmed, so that the memory can be effectively used.

Further, according to the present invention, it is possible to prevent the data from being accidentally lost by notifying the user that the memory for storing the codec information waiting for the transmission or the reception confirmation is running out.

Further, according to the present invention, it is possible to explicitly know that all the data has arrived at the other party, and it is possible to suspend the power OFF until the transfer is completed.

[Brief description of the drawings]

FIG. 1 is a block diagram of an electronic terminal device according to an embodiment of the present invention.

FIG. 2 is a diagram showing an operation screen of an electronic terminal device according to an embodiment of the present invention.

FIG. 3 is a flowchart showing a handwriting input process according to an embodiment of the present invention.

FIG. 4 is a flowchart showing a codec process according to an embodiment of the present invention.

FIG. 5 is a flowchart showing a communication control process according to an embodiment of the present invention.

[Explanation of symbols]

1 RF / IF section 2 Modulation / demodulation section 3 Digital signal processing circuit section 4 PHS (Personal Handyphone System) control section 5 Changeover switch section 6 Voice processing circuit section 7 Transmit / receive antenna 8 Control signal I / F section 9 LCD with digitizer Display unit 10 Relative coordinate calculation circuit unit 11 First storage unit 12 Coordinate value determination circuit unit 13 Coordinate extraction circuit unit 14 Codec circuit unit 15 Second storage unit 16 Memory determination circuit unit 17 Communication data processing circuit unit 18 Handwriting input control unit 19 PHS unit 20 Handwriting input unit 21 Telephone mode screen 22 Handwriting data transmission mode screen

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location H04N 1/41 H04B 7/26 109M

Claims (9)

[Claims] 1. An electronic terminal device comprising: a data communication function by wireless communication; an input means for inputting by input means for inputting a user operation; and a display means for displaying input information. Position reading means for reading the position of the input means with respect to the input means as absolute coordinate information from a predetermined origin at predetermined time intervals, and input from the input means to the input means being stopped Stop detection means for detecting the displacement, and displacement calculation means for calculating a relative difference as displacement information from the two absolute coordinate information continuously obtained by the position reading means until the stop detection by the stop detection means is made, Reference displacement storage means having a predetermined reference displacement value, displacement determination means for determining that the displacement information is larger than the reference displacement value, and detection by the stop detection means And the encoding means for regularly encoding the absolute coordinate information forming the displacement information discriminated by the output of the displacement discriminating means as a series of information. An electronic terminal device, characterized in that it transmits information, and then performs the same transmission again according to a predetermined rule if reception confirmation is not obtained. 2. An electronic terminal device comprising: a data communication function by wireless communication; an input target device for inputting by an input unit for inputting an operation by a user; and a display unit for displaying input information. Position reading means for reading the position of the input means to the input means as absolute coordinate information from a predetermined origin at predetermined time intervals, and stop of input from the input means to the input means Stop detection means for detecting the displacement, and displacement calculation means for calculating a relative difference as displacement information from the two absolute coordinate information continuously obtained by the position reading means until the stop detection by the stop detection means is made, Reference displacement storage means having a predetermined reference displacement value, displacement determination means for determining that the displacement information is larger than the reference displacement value, and detection by the stop detection means And the encoding means for regularly encoding the absolute coordinate information forming the displacement information discriminated by the output of the displacement discriminating means as a series of information. An electronic terminal device, characterized in that information is transmitted, and then the same transmission is performed again in response to a request from the destination to retransmit. 3. The electronic terminal device according to claim 1, wherein the absolute coordinate information which is regularly encoded as a series of information is used as the relative displacement information. . 4. Maximum displacement storage means for storing predetermined maximum displacement information, and maximum displacement determination means for comparing the displacement information of the maximum displacement storage means with the displacement information obtained by the calculation means. Until the stop is detected by the stop detecting means, when the obtained displacement information exceeds the maximum displacement information, the value of the displacement information is set to a value equal to or less than the value of the maximum displacement information from the immediately preceding coordinate information, and the value of the displacement information is preferably. Interpolation coordinate acquisition means for obtaining interpolation coordinate information by linear interpolation or multi-dimensional curve interpolation so as to be large, and this interpolation coordinate information is used as new coordinate information and the next displacement information is obtained. The electronic terminal device according to claim 1, wherein the coordinate information immediately before is used. 5. A counting unit for counting the number of coordinate information discriminated by the displacement discriminating unit, a standard information number storage unit for storing a standard number of predetermined coordinate information, and an output of the counting unit. And the number stored in the standard information number storage means, and when they are equal, the processing by the encoding means is performed and the counting means is reset. The electronic terminal device according to claim 1. 6. A communication capability detecting means for detecting a communication capability of data communication from a line, and a reference displacement setting means for varying the reference displacement amount according to a detection result of the communication capability detecting means. When the capacity is high, the reference displacement amount is set small,
The electronic terminal device according to any one of claims 1 to 5, wherein the reference displacement amount is set to be large when the communication capability is low. 7. An encoding storage means for storing the data encoded by the encoding means, and a deletion means for deleting the stored data, and when a reception confirmation from a destination is obtained. 7. The electronic terminal device according to claim 1, wherein the encoded data is deleted. 8. The encoding storage means comprises: a capacity detecting means for detecting that the free space of the encoding storage means is less than or equal to a predetermined value; and an informing means for performing an informing operation by the output of the capacity detecting means. The electronic terminal device according to claim 7, wherein when the free space of the means is less than a predetermined value, the user is notified of that fact. 9. A reception detecting means for detecting whether or not the reception confirmation is obtained, and a reception notification means for notifying that the reception confirmation is not obtained by the output of the reception detection means. The electronic terminal device according to any one of claims 1 to 8, characterized in that the user is informed that the reception confirmation has not been obtained at a predetermined time or at a desired time.