JPH02307796A - Electronic blackboard apparatus - Google Patents

Abstract

PURPOSE:To hold a plurality of the data inputted from a plurality of input apparatuses and to freely superpose those data one upon another or to eliminate the same by mounting a plurality of frame memory parts and a display control part selecting the data of said memory part to superpose the same one upon another and forming picture display data to transmit the same. CONSTITUTION:Frame memories 3-1 - 3-N temporarily store the data from input apparatuses 1-1 - 1-N. A display control part 5 selects the data indicated from a console 6 from (N) data of the frame memories 3-1 - 3-N received from a transmission control part 4 to transmit the same to a display memory 7. Further, the display control part 5 superposes the data of the frame memories developed on one or plurality of bit maps selected by the console 6 one upon another to form the data for picture display of the display memory 7 and transmits said data to the display memory 7. The display memory 7 has memory capacity capable of storing at least the image data of one page of a display picture 8 and develops the data for picture display formed by the display control part 5 on a bit map to temporarily store the same. The display picture 8 displays the data from the display memory 7.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an electronic whiteboard device, and in particular, the present invention stores a plurality of data input from a plurality of input devices in a memory, and arbitrarily overlaps these data. The present invention relates to an electronic whiteboard device that can be displayed on a screen after alignment.

[Conventional technology]

In conventional electronic whiteboard devices, a plurality of data inputted from a plurality of input devices are all superimposed and held in a screen display memory and displayed on the screen. Furthermore, when deleting part of the data displayed on the screen, all of the data displayed on the screen was deleted.

[Problem to be solved by the invention]

Therefore, in conventional electronic whiteboard devices, multiple pieces of data input from multiple input devices are all superimposed in memory for screen display, held, and displayed on the screen. There is a drawback in that it is not possible to display only specific data among the data, and it is not possible to superimpose and display only a plurality of specific data from among the data input from each input device. In addition, since all of the multiple data input from multiple input devices are displayed superimposed on the data in the display memory for screen display, the display data input from one input device may , when a process that deletes part or all of the screen occurs, not only the input data from that input device but also all the multiple data input from the remaining multiple input devices are deleted. .

An object of the present invention is to eliminate such drawbacks and provide an electronic whiteboard device that can hold a plurality of data input from a plurality of input devices, and can freely superimpose and delete these data. be.

[Means to solve the problem]

The electronic whiteboard device of the present invention includes: a plurality of input devices for inputting data; a plurality of frame memory sections connected to correspond to the plurality of input devices and holding data of each input device; and the frame memory section. a transmission control unit that transmits data input from the frame memory unit; and a transmission control unit that is connected to a console, receives instructions from the console, receives data in the frame memory unit via the transmission control unit, selects and superimposes the data, and displays the data on the screen. It has a display control section that generates and transmits data, and a screen display section that displays on the screen based on the screen display data.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a circuit block diagram showing one embodiment of the present invention.

This frame memory includes input devices 1-1 to 1-N, frame memories 3-1 to 3-N, a transmission control section 4, a display control section 5, a console 6, a display memory 7, and a display screen. 8. There are N input devices 1-1 to 1-N, each connected to N frame memories 3-1 to 3-N.

Each of the frames 11 memories 3-1 to 3-N is connected to a transmission control section 4, and the transmission control section 4 is connected to a display control section 5 through eight connection lines.

The input devices 1-1 to 1-N are comprised of tablets, Bentouches, etc., and transmit data inputted by operations on the tablets, Bentouches, etc. to the frame memories 3-1 to 3-N. The data input from the input devices 1-1 to 1-N is graphic data input by operating a tablet, bench touch, etc., or text data input from a keyboard, etc., and these data are converted into digital data. , are input to each frame memory from each input device.

The frame memories 3-1 to 3-N are composed of IC memories and the like, and temporarily store data from the input devices 1-1 to 1-N. Each frame memory is provided with the same number of input devices, and data from each input device is stored in each frame memory. Furthermore, one frame memory of each frame memory has a storage capacity sufficient to store at least one page of image data on the display screen 8, and is capable of storing digital data received from one input device. Developed into a bitmap and stored temporarily.

The transmission control unit 4 controls each frame memory 3-1 to 3=N
The data temporarily stored in is transmitted to the display control section 5. The transmission control section 4 and the display control section 5 are connected to the same number of connection lines as the input devices and frame memories, so that data temporarily stored in each frame memory can be simultaneously transmitted to the display control section 5. can.

The display control section 5 selects the data instructed by the console 6 from among the N pieces of data in the frame memories 3-1 to 3-N received from the transmission control section 4, and transmits the selected data to the display memory 6. In addition, the display control unit 5 generates data for screen display in the display memory 7 by superimposing data in the frame memory developed on one or more bitmaps selected by the console 6, and transmits the data to the display memory 7. do.

The console 6 controls the display control unit 5 by using a keyboard or the like.
Issue instructions to select data stored in each frame memory.

The display memory 7 is connected to the display screen 8 and is connected to the display control section 5.
Store generated data from. This display memory 7
has a storage capacity capable of storing image data for at least one page of the display screen 8, and expands the screen display data generated by the display control unit 5 into a bitmap and temporarily stores it. . The display screen 8 displays data from the display memory 7 on the screen.

Next, the operation of this embodiment will be explained. Among the data input by the user from input words ff 1-1 to 1-N tablets, Bentouch, etc., input devices 1-1 to 1-3
Assume that an instruction is given from the console 6 to superimpose . Data input from the input devices 1-1 to 1-N is converted into digital data and temporarily stored in the frame memories 3-1 to 3-N. Display control section 5
In response to instructions from the console 6, the frame memory 3-1
Input device 3-1 to input device 3 stored in ~3-3
-3 data is received via the transmission control unit 4, and a beep)
Data for screen display in the display memory 7 is generated by developing and superimposing the data on a map, and transmitting the data to the display memory 7. This screen display data is developed into a bitmap, temporarily stored in the display memory 7, and displayed on the display screen 8.

Next, if a process to delete some or all of the data on the input device 3-1 occurs among the data that has been input and displayed, delete some or all of the data on the input device 3-1. input from the input device 3-1. Input device 3-
The change data inputted from frame memory 3-1 is converted into digital data and temporarily stored in frame memory 3-1. Then, in the display control section 5, the frame memories 3-1 to 3-3
The input data are superimposed and regenerated and displayed on the display screen 8.

As explained above, the electronic whiteboard device of the present invention has N input devices for holding data input from N input devices.
It has a function that generates display memory data for screen display by selecting the frame memory you want to display from among the frame memories and overlapping the data of the selected one or more frame memories. Data can be overlaid and deleted freely.

〔Effect of the invention〕

As explained above, the present invention is capable of displaying only specific data among data input from a plurality of input devices, and displaying a plurality of data selected from among a plurality of data input from a plurality of input devices. There are effects that can be displayed on the screen. In addition, when processing to delete part or all of the screen for data input from one input device occurs, the effect is that only the data input from that input device can be deleted and displayed on the screen. There is.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a circuit block diagram showing one embodiment of the present invention. 1-1 to 1-N... Input device 3-1 to 3-N... Frame memory 4...
...Transmission control section 5 ...Display control section 7 ...Display memory 8 ...Display screen Fig. 1

Claims (1)

[Claims] (1) A plurality of input devices for inputting data, a plurality of frame memory sections connected correspondingly to the plurality of input devices and holding data of each input device, and data input from the frame memory sections. a transmission control unit that is connected to a console, receives the data in the frame memory unit via the transmission control unit in response to instructions from the console, selects and superimposes the data, generates screen display data, and transmits the data. An electronic whiteboard device comprising: a display control unit that displays data on a screen based on the screen display data;