JPS5886588A - Display system having added display function - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display system having an additional display function that enables additional display of arrows and the like on a display image.

Diagrams and tables are often used to explain the content of presentations at conferences and the like. In such cases.

Conventionally, for example, a slide projector is used to project an image such as a map of a bush, and one presenter makes a presentation while indicating the position of the explanation in the chart using a pointing stick.

However, in this case, the presenter not only has to go to the screen to give a presentation, but also the meeting participants have to go all the way to the screen when they want to express their opinions, which makes the meeting less smooth. Not only did it interfere with the progress of the painting, but it also had the disadvantage of having to get up from my seat every time.

Therefore, it has been considered to use an arrow projector like a flashlight and to be able to command the explanation position on the screen from your seat, but this method requires a person to support the arrow projector. Because of this, the arrow instructions on the screen were unstable and it was not possible to accurately indicate the location of the explanation, and even worse, it was impossible to change the size of the arrow at all due to the location of the explanation.

This invention was made to eliminate the above-mentioned drawbacks, and it is possible to accurately and stably superimpose an additional display at the position of an additional display such as a single display image signal centering arrow, and also to control the direction and size of the additional display. It is an object of the present invention to provide a display system having an additional display function that can arbitrarily change the display size, etc.

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

In Figure 1, 1 consists of a VTR, TV camera, etc.
This signal source 1 is connected to a display device 3 via a mixer 2. This image display device 3 has a projector 31 and a screen 32.

A projector 31 displays a predetermined image on a screen 32, such as an image necessary for explaining the meeting.

An additional display control device 4 is connected to the mixer 2.

The control device 4 includes a plurality of operation units, such as an operation console 5, a two-dimensional pattern memory, an arrow pattern storage unit 42 that stores additional display patterns, such as arrow patterns, and a set turn control unit 43, which fixes the additional display. It has a display image memory section 44 consisting of a 3-bit two-dimensional memory for storing patterns for display, a mixing section 45, and a conversion section 44@. The operation console 5 also has an additional display superimposed on the display screen, such as a coordinate input section for indicating the position of an arrow (tablet) 51. It has operation parts sz and ss for operating the enlargement/reduction, rotation, etc. of the arrow, as well as functions for fixing the arrow, and display colors of the arrow, such as red, blue, border, yellow, magenta, and cyan.

It has a function selection section 54 for selecting an arbitrary color from seven white colors, a function for superimposing handwritten characters etc. using a tablet 51, a function for erasing a single arrow character, etc. % arrow <Ten'+ -s for numbering
It has s.

Next, its effect will be explained.

Now, the Ii signal from the ms compensation source 1 is applied to the image display device 3 via the mixer 2, and the projector 31 of the device 3 projects a predetermined image on the screen 32, such as an image necessary for a conference. It is assumed that

From this state, while viewing the image on the screen 32, for example, if a particular presenter among the conference participants indicates the superimposition position of the arrow on the console 51 at his or her seat.

In response to this instruction, the arrow pattern corresponding to the address data is read out from the pattern storage section 43 by the pattern control section 43 via the control section 41 of the additional display control section 4, and is sent to the V large converter 46 via the mixing section 45. Given. As a result, the arrow pattern is converted into an analog signal, and then the mixer 2 inputs an incoming signal to the screen 32.
An arrow is superimposed on a predetermined position of the image.

Here, enlarge the arrow using the operation sections 52 and 53 of the operation console 5.
If you operate reduction, rotation, etc., the pattern control section 43
These arrow patterns for enlargement, S reduction, rotation, etc. are read out from the pattern storage section 43.

This is mixed into the -I signal and displayed on the screen 32. Similarly, the display color of the arrow can be changed by selecting in the function selection section 54, for example, red, back, green, yellow magenta, cyan, etc.
Select any color from white (*, t tablet)
At step 51, handwritten characters and the like can be superimposed on the screen $2, and they can also be erased as appropriate. Also,
Numbers can also be attached to arrows by operating the numeric keypad SS.

Next, when this is selected in the pigeon loft 1 horizontal function selection section 54 which fixes and displays the additional display on the screen 32, a command is given to the display image memory 44 via the control section 41. Then, the fixed display pattern stored in the memory 44 is transferred to the mixing section 45. The signal is mixed into the image signal by the mixer 2 via the D/A converter 4G.

Screen 3 snowy li#! Upper Eli! If constant addition 5 display is weighted.

Note that the above description refers to the operation of the operation console 5 by a specific presenter (but other conference attendees can also operate the operation rate 51 at their own seats in the same way as described above) to perform the operation as specified in the drawings of Stareen Special 2. The additional display can be superimposed.

Therefore, according to such a configuration, by mixing an additional display signal such as an arrow into the display image signal, the display
Since the additional display can be superimposed on a desired position during the meeting, it is possible to accurately and stably indicate the additional display on the bestatune, such as an arrow, using a conventional arrow projector.

Furthermore, since the direction, size, display color, etc. of the arrow can be changed arbitrarily, it is possible to easily explain the contents of the image. In addition, since these operations can be performed from the console at your seat, the presenter as well as the participants can discuss the content of the displayed image without leaving their seats.
This not only eliminates the hassle of leaving their seats compared to the conventional method where presenters and other attendees have to go to the screen one by one, but also allows the meeting to proceed smoothly.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be implemented with appropriate modifications without changing the gist.

For example, although a tablet is used as the coordinate input unit in the above description, a geostick, touch-sensitive panel, etc. may also be used.

As described above, according to the present invention, by mixing an additional display signal such as an arrow into the display image signal, it is possible to accurately and stably superimpose the additional display at a desired position in the display image. Moreover, it is possible to provide a display system having additional display capability, in which the direction, size, etc. of the additional display can be changed arbitrarily.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a -am example of the present invention. The third intention is a block diagram showing an additional display control device used in the same embodiment. l-Picture source 2--Mixer 3-Image display device 31--Projector 38-Screen °4-Additional display control device 41--Control unit
42-Pattern storage section 43-Pattern control section
44・-Display image memory section 4s-combination @ 4g
-D/A conversion 1) 5-Operation console! $1-...
Tablet S 53-Operation 111 84・-Function selection section ss-Ten-

Claims (1)

[Scope of Claims] (1) An image signal source, an image display device that displays an image according to the image signal of the signal source, and a coordinate input unit that instructs the position of an additional display superimposed on the image. and a means for generating an additional display pattern signal according to an instruction from the operating section and mixing it into the image signal and superimposing the additional display on the image. (Jl) A display system having an additional display function according to claim 1, characterized in that the image display device has a projector and a screen. A patent claim characterized by having a function of rotating once, a function of selecting a display color, a function of superimposing handwritten characters, a function of attaching a number to an additional display, a function of fixing an additional display, a function of erasing an additional display, etc. A display system 0 having the additional display function according to claim 1 or 2. (4) The coordinate input section of the operation section is comprised of a tape y). (5) The means has a storage section for storing the additional display pattern and a pattern control section for reading out the additional display pattern in accordance with instructions from the operation section. A display system having an additional display function according to any one of claims 1 to 3, characterized in that: