JPH0766919A - Communication equipment - Google Patents

Abstract

PURPOSE:To constitute the equipment so that user can select a mode in accodance with a state by providing a means for switching a mode for transmitting input data at the time of input, and a mode for storing the input data, and transmitting it in accordance with a transmitting request. CONSTITUTION:A communication control part 11 for receiving an instruction of a communication start from an MPU 13 monitors a data buffer memory 15, and when transmitting data exists, whether input data from a pen input part 1 is transmitted in a real time or not is judged successively. In the case of the real time transmission, the communication control part 11 extracts successively the data inputted to the data buffer memory 15, and transmits it to a communication line by using a communication part 10. On the other hand, when the input data is not transmitted in a real time, that is, when the input data is stored temporarily, and transmitted in the lump, the communication control part 11 extracts uncommunication data from the data buffer memory 15, and transmits it to the communication line by using the communication part 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication device for transmitting data such as voice / image / text.

[0002]

2. Description of the Related Art As data to be transmitted, there are fixed information in one screen such as documents and procedures, and variable information in one screen such as keyboard and pen input. The thing needs to send the information of one screen once, but the latter thing has to send the change of the screen sequentially.

As described above, the data to be transmitted is fixed or not fixed, and the transmission form of these data is also different.

[0004]

Therefore, in the prior art, a plurality of transmission devices suitable for the data to be transmitted are provided and used properly according to the type of the data to be transmitted. There was a problem, and a user who had only one transmission device could not transmit the other data.

In the latter case, in the case of sequentially transmitting data in which the data within one screen changes, it is unknown which part of the one screen has been transmitted and which part has not been transmitted.
Therefore, it was unclear how much data was recognized on the receiving side.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and enables data transmission for both fixed information and variable information in one screen. In addition, the transmission status of variable data in one screen can be recognized. Specifically, the data input means for inputting the data to be transmitted, the memory for storing the data, and the data transmission via the communication line. And a mode for transmitting the data input by the data inputting means during communication line connection at substantially the same time, and storing the input data in the memory and collectively in response to a transmission request. A communication device for transmitting data in a transmission mode, comprising display means for displaying the data input by the data input means, and transmitting the data already transmitted on the display means. A communication device for displaying by identifying and no data.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 1 is a block diagram showing a schematic configuration of this embodiment. In the figure, 1 is a pen input section,
It is operated by the operator to input various information such as characters and figures. A display unit 2 displays various messages and image images. The display unit 2 is a so-called CRT, and the pen input unit 1 is connected to it. CRT control 3 controls the pen input unit 1 and the display unit 2.

Reference numeral 4 is a voice input section such as a microphone, and 5 is a voice output section such as a speaker. 6 is this voice input unit 4
And a voice input / output control unit for controlling the voice output unit 5.

Reference numeral 7 denotes an image information output, which outputs image information via an image input / output control unit 9 described later. An image information input unit 8 outputs image information via an image input / output control unit 9 described later. An image information input unit 8 inputs image information via an image input / output control unit 9 described later. 9
Is an image input / output unit, which performs interface control between the image information output unit 7, the image information input unit 8 and the system bus 18, and controls the image information output unit 7 and the image information input unit 8.

A communication unit 10 is capable of transmitting and receiving a plurality of types of data through a single communication line, and communicates with a remote terminal via the communication line. A communication control unit 11 controls the communication unit 10.

Reference numeral 12 denotes an auxiliary storage unit, which is a compressed image received via the communication unit 10 or an image for transmission input from the image information input unit 8 or the like and compressed by the compression / expansion unit 16 in the post-operation. It is a large-capacity memory such as a hard disk for storing the like.

Reference numeral 13 is an MPU such as a microprocessor for controlling the entire communication device, and in particular for the POM 1 described later.
Various data signals and control signals are output according to the control program stored in 4-1 to control the entire apparatus. Reference numeral 14-1 is a ROM, which stores control programs and the like as shown in the flowchart of FIG. 2 to be described later, and 14-2 is a RAM which is used as a work area of the MPU 13 and stores various control data. It is temporarily saved.

Reference numeral 15 is a data buffer memory for communication, which is image data input from the image information input unit 8 and compressed by the compression / expansion unit 16 described later, or data and voice input from the pen input unit 1. The data input from the input unit 4 is saved.

Reference numeral 16 is a compression / decompression unit, which is a communication unit 10.
It is a compression / expansion unit that compresses / expands audio / image information transmitted and received via.

Reference numeral 18 is a system bus to which each unit is connected.

2 and 3 are flowcharts relating to the transmission processing in this embodiment.

The operations described below are both controlled by the MPU 13, but the operation of each unit is also included.

First, when a transmission instruction is given from the pen input section 1, the MRUs 1 and 3 display a display for prompting destination input on the display section 2 via the CRT control section 3 in step S1.
The operation waits until the operator inputs a destination using the pen input unit 1. When the destination is input, in step S2, a connection request is issued to the communication unit 10 via the communication control unit 11, and the communication unit 10 connects the line to the partner terminal via the communication line 19. Next, in step S3, the communication control unit 11 is instructed to start communication. Subsequent communication processing is
This will be described with reference to the flowchart of FIG. 3 described later.

Next, in step S4, the input of data from the pen input unit 1 via the CRT control unit 3 is awaited. If there is an input, in step S5, first, it is determined whether or not the communication is completed. If the communication is completed, step S6 is executed.
In step 3, the communication control unit 11 is instructed to disconnect the line, the communication unit 10 disconnects the line with the partner terminal via the communication line, and the process ends.

If the communication is not completed, it is judged in step S7 whether or not the data is voice data.
In step S8, via the voice input / output control unit 6,
The voice input from the voice input unit 4 is compressed by the compression / decompression unit 16, and this data is set in the data buffer memory 15 in step S9.
Return to 4 and wait for the next input.

If it is not voice data, step S1
At 0, it is judged whether it is image data, and if it is image data, at step S11, the original is read by the image information input unit 8 via the image input / output control unit 9. Next, the read image data is compressed by the compression / expansion unit 16 in step S12, set in the data buffer memory 15 in step S13, and the process returns to step S4.

If it is not image data, it is judged in step S14 whether or not it is a pen input. If it is pen input, the text information input from the pen input unit 1 via the CRT control unit 3 in step S15 is judged. , Is set in the data buffer memory 15, and the process returns to step S4. If none of these three data, CRT
An error is displayed on the display unit 2 via the control unit 3, and the process returns to step S4.

Next, communication processing will be described with reference to FIG. In the communication processing of this embodiment, one screen is transmitted by frame transmission a plurality of times. The communication control unit 11, which has received the instruction to start communication from the MPU 13, in step S30,
The data buffer memory 15 is monitored at regular intervals to determine whether or not there is transmission data. If there is transmission data, it is determined in step S31 whether or not it is real-time transmission in which data input from the pen input unit 1 or the like is sequentially transmitted in real time as input. In the case of real-time transmission, when the frame transmission is instructed to the communication control unit 11 in step S32, the communication control unit 11
Sequentially extracts each data input to the data buffer memory 15 to create a transmission frame, and the communication unit 10
To send to the communication line. And step S3
At 7, the transmitted data is flagged. After the transmission, the process returns to step S30 and the next transmission process is performed.

When the data is not transmitted in real time, that is, when the input data is once stored and then collectively transmitted, it is first determined in step S33 whether or not there is a data transmission command. If there is a data transmission command, in step S34, when the communication control unit 11 is instructed to transmit a frame, the communication control unit 11 extracts the untransmitted data from the data buffer memory 15, creates a transmission frame, and then the communication unit 10 To send to the communication line. After the transmission, in step S35, after flagging the transmitted data, the process returns to step S30 and the next transmission process is performed.

If there is no data transmission command, only the voice data is transmitted in step S36, and after the transmission, the process returns to step S30 to perform the next transmission processing.

FIG. 4 shows the format of the transmission frame. As is clear from the figure, the transmission frame is defined by a header and a checksum, between which audio data, image data and text data are set, and
Data representing each data length is also set.

FIG. 5 is a flowchart showing a data display operation on the display unit 2 by the CRT control unit 3 during data processing using the pen input unit 1. CRT control unit 3
In step S50, the data buffer memory 1
5 is monitored at regular intervals to determine whether there is display data corresponding to the input data from the pen input unit 1. If there is display data, the display data is extracted from the data buffer memory 15 in step S51, and it is determined in step S52 whether or not the data is untransmitted data based on the flag set during the above-described communication processing. Here, when real-time transmission is selected, transmitted data and untransmitted data are mixed in the data buffer memory 15. In the case of untransmitted data, step S5
In 3, the signal processing for making the display mode different from the transmitted data is performed, while in the case of already transmitted data, step S53 is skipped. Then, in step S54, the data is displayed on the display unit 2. After the display, the process returns to step S50.

Here, in step S53, signal processing such as changing the light and shade, the line width, the color, and blinking is performed. Therefore, when real-time transmission is selected at the time of data input using the pen input unit 1, which portion of the pen-input data has been transmitted and which portion has not been transmitted are displayed. It can be monitored on part 2.

The process described with reference to FIGS. 3 and 5 operates in parallel with the process described with reference to FIG.

In the present embodiment, the untransmitted data is processed so that it can be distinguished from the transmitted data so that it can be displayed separately from the transmitted data. Alternatively, both may be subjected to the processing. The execution and contents of these processes may be set by external input.

In the present embodiment, the display of the input data from the pen input unit 1 is taken as an example, but the present invention can be similarly applied to the case where the data to be transmitted is voice / image / text and other data. The present invention can be applied to the case where a moving image is added, or the case where there are two data.

In this embodiment, one communication line is used, but it is also applicable to a case where a plurality of lines are used.

[0033]

As described above, according to the present invention,
It is said that the user can select the mode according to the situation by providing a means for switching between a mode in which input data is sent one by one when inputting data and a mode in which input data is accumulated and sent in response to a user's transmission request. effective.

Further, by providing the identification means for identifying the data already transmitted and the data not transmitted among the data displayed on the display unit, the user can easily see the data displayed on the display unit. This has the effect of distinguishing between transmitted data and untransmitted data.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a multimedia communication device according to an embodiment.

FIG. 2 is a flow chart diagram for explaining a transmission process.

FIG. 3 is a flowchart diagram for explaining a transmission process.

FIG. 4 is a diagram showing a transmission frame format.

FIG. 5 is a flowchart for explaining display processing of a display processing unit.

[Explanation of symbols]

 1 Pen Input Unit 2 Display Unit 3 CRT Control Unit 10 Communication Unit 11 Communication Control Unit 13 MPU 15 Data Buffer Memory

Claims (2)

[Claims] 1. A data input means for inputting data to be transmitted, a memory for storing the data, and a communication means for transmitting the data via a communication line. The data input means inputs the data while the communication line is connected. A communication device for transmitting data in a mode for transmitting substantially the same data and a mode for storing the input data in the memory and transmitting the data collectively in response to a transmission request. 2. A display means for displaying the data inputted by said data input means is provided, and the data already transmitted and the data not yet transmitted are discriminated and displayed on said display means. Item 2. The communication device according to Item 1.