JPH1127263A - Device and method for data transmission and reception - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow execution of an application processing not only of one's own terminal but also of other communication terminals by real time data sharing among the communication terminals and executing an operation setting of one communication terminal. SOLUTION: In a communication terminal 1, a CPU 12 executes an application processing in accordance with an operation setting of an operation part 11 and transmits the operation set data of this operation part 11 to a communication terminal 2 by way of an I/F 17. In the communication terminal 2, it executes the application processing on the basis of the data, when a CPU 22 receives these data at an I/F 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a data transmitting / receiving apparatus and a data transmitting / receiving method suitable for use in a navigation system.

[0002]

2. Description of the Related Art Conventionally, there has been provided, for example, a communication terminal device for receiving data and displaying the contents of the data on a monitor. Such a communication terminal device always receives new data, and constantly updates the display contents of the monitor based on this data or based on a user's operation input.

[0003]

As described above, the conventional communication terminal device only unilaterally receives data and only updates the display contents of the monitor. When the device is used, it is inconvenient because data set and operated in another communication terminal device cannot be shared in real time.

[0004] For example, when traveling on a plurality of vehicles equipped with the same communication terminal device, when a break place is marked on a monitor of one communication terminal device while the vehicle is running, another communication terminal device is marked. The rest area was not marked on the monitor. Therefore, the users need to communicate with each other using the transceiver or the mobile phone while the vehicle is running, and cannot concentrate on driving the vehicle, which is very inconvenient.

[0005] That is, since it is not possible to perform application processing of another communication terminal device by operation setting of one communication terminal device, data cannot be thoroughly shared.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and only shares data between communication terminal devices in real time and performs application processing of its own device by operation setting of one communication terminal device. Another object of the present invention is to provide a data transmission / reception device and a data transmission / reception method capable of performing application processing of another communication terminal device.

[0007]

In order to solve the above-mentioned problem, a data transmitting / receiving apparatus according to the present invention is a data transmitting / receiving apparatus for transmitting / receiving data between a plurality of communication terminal apparatuses. Operation means for outputting operation data based on operation settings; data processing means for performing processing based on the operation data; transmission means for transmitting the operation data; reception means for receiving the operation data; and operation of the operation means Data processing means for performing processing based on data. Then, in the data transmission / reception device, when the receiving means receives the operation data, the data processing means performs a process based on the operation data received by the receiving means.

A data transmitting / receiving method according to the present invention is a data transmitting / receiving method for transmitting / receiving data between a plurality of communication terminal devices, wherein each communication terminal device outputs operation data based on operation settings and transmits the operation data. Then, while performing processing based on the operation data, operation data from another communication terminal is received, and processing based on the operation data is performed.

[0009]

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

The present invention relates to communication terminals 1, 2 shown in FIG.
Can be applied to The communication terminal device 1 includes, for example, an operation unit 11 capable of performing an operation in association with coordinates of a display screen, a CPU 12 for controlling each circuit, and a graphic display controller (hereinafter referred to as “GD”).
C ". ) 13, a display unit 14 for displaying an image based on the GDC 13, and a memory 15 for storing data.
And a data drive circuit 16 for controlling reading and writing of data in the memory 15 and an interface (hereinafter, referred to as “I / F”) 17 for transmitting and receiving data.

The operation unit 11 corresponds to a touch panel or a touch pad which is associated with a display screen. The user can set various modes by performing operation settings of the operation unit 11. The data of the content set by the operation unit 11 is stored in the memory 15.

The CPU 12 reads data stored in the memory 15 by the data drive circuit 16 based on the operation setting of the operation unit 11, for example,
Via the GDC 13, the display unit 14 performs a predetermined display. Further, it controls to transmit the data read by the data drive circuit 16 via the I / F 17 and controls to store the data received by the I / F 17 in the memory 15.

The GDC 13 displays an image on the display unit 14 under the control of the CPU 12. The display unit 14
As shown in FIG. 2, a base plane which is a basic screen,
The information plane is a screen corresponding to various input operations. In the case of a communication terminal device, the display unit 14 is an electronic map. At this time, as shown in FIG. 3, the display unit 14 includes a map plane that is a base plane, and an operation plane, a drawing plane, and a scroll plane that are information planes. The scroll plane may be the same as the map plane in some cases.

The operation unit 11 includes icon buttons to provided on each plane shown in FIG. When the user presses these icon buttons, the CPU 12 switches to, for example, a sharing mode, a scroll mode, or a drawing mode. That is, the icon button, the application, and the function of the application need to be determined in advance.

For example, the icon button indicates the operation function number when there is no sharing mode (during independent operation). The icon button indicates an operation function number in the drawing mode state. The icon button indicates an operation function number in the scroll mode state.

More specifically, the icon button is a button for returning to the state with / without the shared mode, the icon button is a button for returning to the drawing mode, and the icon button is a button for returning to the scroll mode. It is. These are all toggle operation buttons.

The icon buttons are function buttons in the application mode. For example, in the case of the drawing mode, dot, line, pen color,
It is possible to change the pen thickness and the like, and in the case of the scroll mode, the scale level of the map and the like can be changed.

In the present embodiment, the operation plane is provided and the operation is made to correspond to the display screen. However, it is needless to say that a hardware button switch may be used. In this case, the operation plane is unnecessary.

The I / F 17 is an interface for wirelessly transmitting and receiving data to and from another navigation device.
In the present embodiment, the I / F 17 performs wireless data communication, but the present invention is not limited to this. For example, the I / F 17 may transmit and receive data by providing an infrared communication port, or may transmit and receive data via the wire in the case of a wire.

As shown in FIG. 4, the data transmitted / received by the I / F 17 is of a fixed connection type in which a channel is fixedly assigned to a time slot, and is configured for each frame. The frames have device numbers 0 to n, respectively, and include a device number, device state information, press information, and display surface coordinate data. In the present embodiment, the device numbers are only “0” and “1”, but it goes without saying that there may be two or more device numbers.

The device number is assigned to each device by performing a process in a device number acquisition mode described later. Therefore, when transmitting data, one communication terminal device transmits a device number indicating a transmission destination of these data together with the device state information, the press information, and the display surface coordinate data. On the other hand, when receiving the data, the other communication terminal device receives the data of only the device number of the own device and performs an application process based on the data.

The device status information indicates an operation mode of each device such as a device number acquisition mode, a non-shared mode (individual mode), and a shared mode. Furthermore, in its operation mode,
Information indicating whether data such as a current application number indicating a running application, a function number in application, press information, and display surface coordinate data is valid or invalid is also combined.

The press information indicates whether the touch panel is turned on or off at a certain coordinate on the touch panel. The press information is turned on while the user is touching the operation unit 11, and is turned off when the user separates from the operation unit 11.

The display surface coordinate data is the XY coordinate data of the screen from when the user starts pressing the touch panel until the user releases the touch panel. Here, as shown in FIG. 5, the lower left of the display screen of the display unit 14 is MIN (0, 0), and the upper left is MAX.
(320, 240).

When the user operates the operation unit 11 to draw a line by pressing down (touch start) at point A and releasing (end release) at point B, as shown in FIG. 5, for example. Then, “press information, display screen coordinate data” are “ON, (4, 4)”, “ON, (5,
5) "," ON, (5, 6) "," ON, (6,
7) ”,...,“ OFF, (16, 14) ”. Each coordinate is plotted on the drawing plane as shown in FIG. Then, the press information and the display screen coordinate data are stored in the memory 15.

The transmission format between the devices of the communication terminal device is preferably a contention system on the premise that all devices have the same right to use the transmission path. The contention method includes a time division multiplexing type and a packet switching type. Further, the time division multiplexing type includes a fixed connection type, a demand assignment type, a non-fixed connection type, and the like. On the other hand, the packet switching type includes a CSMA / CD system, a token passing system, and the like. The present invention is of course applicable to any system.

The communication terminal device 1 transmits and receives data to and from the communication terminal device 2 as shown in FIG. In the present embodiment, a case where data is transmitted and received between the communication terminal devices 1 and 2 will be described. However, the present invention is not limited to this, and data is transmitted between three or more communication terminal devices. It goes without saying that it is possible to send and receive data.

The communication terminal device 2 includes the communication terminal device 1
And the operation unit 21, the CPU 22, and the G
It includes a DC 23, a display unit 24, a memory 25, a data drive circuit 26, and an I / F 27.

Next, the procedure for obtaining the device number of each communication terminal device will be described. In the device number acquisition mode, the process proceeds to step S1 shown in FIG. 6, and the CPUs 12 and 22 of the communication terminal devices 1 and 2 determine whether the device number “0” exists. When it is determined that the device with the device number “0” exists, the process proceeds to step S2, and when it is determined that the device does not exist, the process proceeds to step S6.

In step S2, the CPU 12 of the communication terminal device 1 having the device number "0" notifies the other communication terminal devices 2 of the unused device number, and proceeds to step S3.

In step S3, the communication terminal device 2 selects a device number to be used from the unused request device numbers, and notifies the device number to the communication terminal device 1 having the device number "0". Proceed to S4.

In step S4, the communication terminal device 1 having the device number "0" recognizes the device number of another communication terminal device 2, and proceeds to step S5.

In step S5, the CPUs 12 and 22 of each of the communication terminal devices 1 and 2 determine whether or not the device number has been obtained. If the device number has been obtained, the device number obtaining process ends normally. Terminates without obtaining the device number.

On the other hand, when it is determined in step S1 that there is no communication terminal device having the device number "0", the process proceeds to step S6.
, The CPUs 12 and 22 of the communication terminals 1 and 2
Notify each other of the waiver of the right to become the device number “0”. Specifically, the CPUs 12 and 22 request the other communication terminal devices to use a device other than the device number “0”, and
Proceed to. If the device number requested by the own device has already been used, another device number is requested.

If the use requests collide in step S7, the CPUs 12 and 22 start the timer, request again for the device number, and proceed to step S8.

In step S8, each communication terminal device determines a device number other than the device number "0", and proceeds to step S9.

In step S9, a number other than the device number "0" is determined. That is, the above-described step S
The processing of Steps S2 to S4 is performed, and the process proceeds to Step S5. Through the processing of the above steps S1 to S9,
A device number is set for each communication terminal device.

Next, the transition to the sharing mode when each communication terminal device shares data will be described. For example, when the operation setting of the sharing mode is performed by the operation unit 11, FIG.
Proceeds to step S11 shown in FIG.
12 transmits a shared mode transition request signal to the communication terminal device 2 via the I / F 17, and proceeds to step S12.

In step S12, the communication terminal device 2
CPU 22 receives the transition request signal via the I / F 27, determines whether to transition to the shared mode, and when determined to transition to the shared mode, proceeds to step S13, and determines not to transition to the shared mode. At this time, the process ends in the current mode. In addition, the user can set in advance not to transition to the sharing mode by the operation setting of the operation unit 21. As a result, only the desired user can enter the sharing mode.

In step S13, the CPU 22
Sets the mode of the own device to the shared mode and proceeds to step S
Proceed to 14. Thus, the transition to the sharing mode ends.

In step S14, the communication terminal 1
CPU 12 determines whether new data, that is, data according to the operation setting of the operation unit 11 is stored in the memory 15, and proceeds to step S15 when there is new data, and proceeds to step S16 when there is no new data. .

In step S15, the CPU 12
Based on the data stored in the memory 15, application processing of the own device is performed, and the process proceeds to step S16. The detailed description in step S15 will be described later.

In step S16, the CPU 12
It is determined whether new data is stored in the memory 25 of the other communication terminal device 2. If new data is stored, the process proceeds to step S17, and if there is no new data, the process proceeds to step S18.

In step S17, the communication terminal device 2
CPU 22 performs application processing based on the new data, and proceeds to step S18.

In step S18, the CPUs 12 and 22 of each of the communication terminal devices 1 and 2 determine whether or not the shared mode has been released. When the shared mode has been released, the processing in the shared mode is stopped, and the shared mode is not released. When step S1
Return to 4.

Therefore, during the supply mode, step S
By repeatedly performing the processing from step 14 to step S18, the communication terminal device 1 can perform not only the own device but also the application processing of the other navigation device 2 in real time according to the operation setting of the operation unit 11.

Here, in step S15 described above,
Specifically, steps S21 to S25 shown in FIG.
Processing is in progress.

In step S21 for starting application processing of the own device, the CPU 12 of the communication terminal device 1
Reads out the press information and display surface coordinate data stored in the memory 15 and proceeds to step S22.

In step S22, the CPU 12
It is determined whether the read data is related to the application process currently being performed. If it is determined that the data is related, the process proceeds to step S23. If it is determined that the data is not related, the process proceeds to step S24.

In step S23, the CPU 12
The application process is continuously performed based on the read data, and the process proceeds to step S25.

On the other hand, when it is determined in step S22 that the data is not related, in step S24, the CPU 12
Performs application switching, performs processing for a new application based on the read data, and proceeds to step S25.

In step S25, the CPU 12
The data of the own device is placed in the allocated time slot and transmitted to another communication terminal device via the I / F 17.

Therefore, the operation unit 11 of the communication terminal device 1
When the operation is set by the user, the CPU 12 performs the application processing of the own device based on the operation setting of the operation unit 11 and transmits the data of the contents of the operation setting to the I / F 17.
Can be transmitted to another communication terminal device 2 via the communication terminal.
Accordingly, the data of the operation content of one communication terminal device can be transmitted to another communication terminal device, so that the data can be shared between the communication terminal devices.

In step S17 described above, the communication terminal device 2 specifically executes step S31 shown in FIG.
To Step S34 are being performed.

In step S31, the communication terminal device 2
CPU 22 reads the data of its own device from the time slot via I / F 27, and proceeds to step S32.

In step S32, the CPU 22
It is determined whether the read data is related to the application currently being processed. If it is determined that the data is related, the process proceeds to step S33. If it is determined that the data is not related, the process proceeds to step S34.

In step S33, the CPU 22
The application processing of the own device is performed based on the read data, and the processing of the communication terminal device 2 ends.

On the other hand, in step S34 when it is determined in step S32 that there is no relation, the CPU 22 switches the application, performs a new application process based on the read data, and ends the process of the communication terminal device 2. I do.

Therefore, the CPU 22 of the communication terminal device 2
Can receive data of the contents of operation settings of another device and perform application processing based on the data. This allows the data of the operation content of one communication terminal device to be received by another communication terminal device, and the other communication terminal device can perform application processing based on the data. Can share data.

As described above, by transmitting and receiving data between the communication terminal devices 1 and 2 to which the present invention is applied, one user can communicate with the communication terminal device 1 as shown in FIG.
The user operates the operation unit 11 to draw a line a on the drawing plate of the display unit 14, and as shown in FIG.
When the operation unit 21 of the communication terminal device 2 is operated to draw the line b on the drawing plate of the display unit 24, the lines a and b are displayed on the display units 14 and 24 as shown in FIG. Is displayed.

If the screen is scrolled or the mode is switched by one communication terminal device 1 or other application processing is performed, the other communication terminal device 2 is similarly scrolled or switched by mode. Or other application processing.

That is, one communication terminal device 1 executes the application processing of its own device based on the operation setting data of the operation unit 11 and transmits the data to the other communication terminal device 2 in real time. The communication terminal device 2 executes an application process based on the data. Thus, data can be shared between the communication terminal devices in real time.

The present invention is not limited to the above-described embodiment, and it goes without saying that various design changes are possible within the scope of the technical idea described in the appended claims. No.

[0064]

As described above in detail, according to the data transmitting / receiving apparatus and the data transmitting / receiving method according to the present invention, the operation data based on the operation setting is output, the operation data is transmitted, and the operation data based on the operation data is transmitted. Process,
By receiving operation data from another communication terminal and performing processing based on this operation data, data can be shared between each communication terminal in real time and data processing of one communication terminal can be performed. Instead, data processing of other communication terminals can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a communication terminal device to which the present invention has been applied.

FIG. 2 is an explanatory diagram of each plane constituting a display unit of the communication terminal device.

FIG. 3 is an explanatory diagram of each plane constituting a display unit of the communication terminal device.

FIG. 4 is a configuration diagram of data transmitted and received between the communication terminal devices.

FIG. 5 is an explanatory diagram of coordinates drawn on the display unit.

FIG. 6 is a flowchart when assigning a device number to each communication terminal device.

FIG. 7 is a flowchart when a transition is made to a sharing mode.

FIG. 8 is a flowchart when a transition is made to a sharing mode.

FIG. 9 is a flowchart when a transition is made to a sharing mode.

FIG. 10 is an explanatory diagram of a diagram drawn on a display unit of each communication terminal device.

[Explanation of symbols]

11, 21 operation unit, 12, 22 CPU, 13, 23
GDC, 14, 24 display unit, 15, 25 memory, 1
6,26 data drive circuit, 17,27 I / F

Claims (4)

[Claims] 1. A data transmission / reception device for transmitting / receiving data between a plurality of communication terminal devices, wherein each communication terminal device outputs operation data based on operation settings, and data for performing processing based on the operation data. A processing unit, a transmission unit for transmitting the operation data, a reception unit for receiving the operation data, and a process based on the operation data of the operation unit, and performing a process based on the operation data received by the reception unit A data transmission / reception device comprising a data processing unit. 2. The communication means of one communication terminal device transmits the operation data and device number information for specifying one of the plurality of communication terminal devices, and the communication specified by the device number information. 2. The data transmitting / receiving apparatus according to claim 1, wherein the receiving unit of the terminal device receives operation data from the transmitting unit of the one communication terminal device. 3. A data transmission / reception method for transmitting / receiving data between a plurality of communication terminal devices, wherein each communication terminal device outputs operation data based on operation settings, transmits the operation data, and transmits the operation data based on the operation data. A data transmission / reception method which performs a process, receives operation data from another communication terminal device, and performs a process based on the operation data. 4. In one communication terminal device, the operation data and device number information specifying one of the plurality of communication terminal devices are transmitted, and in the communication terminal device specified by the device number information, 4. The data transmission / reception method according to claim 3, wherein the operation data is received from the one communication terminal device.