JPH0138689Y2 - - Google Patents

Description

[Detailed explanation of the invention] Technical field This invention relates to an image processing device.
It relates to a coordinate input device used to move a cursor displayed on a CRT display to a predetermined coordinate position.

Conventional technology Conventionally, a coordinate input device (mouse) for inputting the amount of movement of a cursor displayed on a CRT display was used in office automation equipment or CAD.
used in equipment. There are two types of mice: mechanical mice, which mechanically detect the rotation of a metal ball, etc. to determine the amount of movement, and mechanical mice, which measure the amount of movement by mechanically detecting the rotation of a metal ball, etc., and mechanical mice, which measure the amount of movement by mechanically detecting the rotation of a metal ball, etc.; There was an optical mouse that detected the line and calculated the amount of movement.

However, both types of mice are connected to the main body of the image processing apparatus via a cable, which is extremely inconvenient as the cable gets in the way of use. Moreover, there were many problems caused by accidentally cutting the cable.

Purpose This invention was made to solve the above problems, and its purpose was to eliminate the cables that get in the way, improve the operability of the mouse, and reduce the number of parts to reduce costs. An object of the present invention is to provide an image processing device which is also advantageous.

Structure of the invention In order to achieve the above object, this invention is an image processing apparatus which is composed of an image processing apparatus main body and an optical mouse used on a mouse pad for inputting coordinates into the image processing apparatus main body. In this step, as the optical mouse moves, a light emitting element detects the relative position of the optical mouse on the mouse pad, and the detected relative position information of the optical mouse is transmitted to the image processing device main body. The gist of this is an image processing device that transmits images.

Embodiments Hereinafter, embodiments embodying this invention will be described with reference to the drawings.

In FIG. 1, an image processing device 1 is equipped with a CRT 2, and a light receiver 3 is provided below the CRT 2. In this embodiment, the light receiver 3 receives infrared light.

A mouse pad 4 provided on the front side of the image processing device 1 is a board for inputting coordinates into the device 1, and has a 0.5 mm square grid 5 printed on its surface. The X-direction line (X-direction line) 5a of the grid 5 is blue, and the Y-direction line (Y-direction line) 5b
is printed in green. That is, when the blue X-direction line 5a is irradiated with red visible light, it reflects the red visible light as it is, while the green Y-direction line 5b reflects the infrared ray as it is when it is irradiated with the infrared light. reflect.

An optical mouse (hereinafter simply referred to as a mouse) 6 is used on the mouse pad 4, and by turning on the operation switch 6a provided on the top surface of the mouse 6, the X and Y printed on the pad 4 can be pressed.
The image processing device 1 starts detecting the direction lines 5a and 5b, and uses the relative position of the mouse 6 on the mouse pad 4 as the mouse 6 moves as relative position information.
Output to.

In FIG. 3, inside the mouse 6 is a light emitting diode 7 that outputs red visible light as a light emitting element.
A light emitting diode 8 which also outputs infrared light as a light emitting element is installed in parallel, and the light is transmitted through a half mirror 11 and a window hole 9 formed on the bottom surface of the mouse body.
The surface of the mouse pad 4 is irradiated through the rays. The reflected light is condensed by a spherical lens 10 through the window hole 9, and then emitted by a pair of parallel light emitting elements 12 and 13, respectively. In this embodiment, the light receiving element 12 receives red visible light,
The light receiving element 13 receives the infrared light and converts it into an electrical signal.

The half mirror 11 reflects a part of the infrared rays, and outputs the infrared rays through the reflecting mirror 14 to the outside, that is, to the light receiver 3 provided in the image processing apparatus 1 .

As shown in FIG. 4, the light receiving elements 12 and 13 convert each light beam into an electrical signal and output it to a central processing unit (hereinafter referred to as mouse CPU) 15.
The CPU 15 operates according to a control program stored in a read-only memory (hereinafter referred to as ROM) 16, and stores various data in a readable and rewritable memory (hereinafter referred to as RAM) 17.

Also, each time the mouse side CPU 15 receives the electric signal output from the light receiving element 12, it determines whether or not it has crossed the X direction line 5a, and when it determines that it has crossed it, it counts in the X register in the CPU 15. In addition, each time the electric signal output from the light receiving element 13 is input, it is determined whether or not the Y direction line 5b has been crossed, and when it is determined that the Y direction line 5b has been crossed.
By counting with the Y register in the CPU 15, the amount of relative movement of the mouse 6 on the mouse pad 4, that is, the relative position information is obtained by dividing it into an X-direction component and a Y-direction component.

Furthermore, the mouse side CPU 15 controls the operation of the light emitting diodes 7 and 8. In other words, the mouse side
The CPU 15 is connected to the X and Y on the mouse pad 4.
The light emission operation time is divided into a light emission operation time for detecting the direction lines 5a and 5b and a light emission operation time for transmitting the calculated relative position information, and the light emission control is performed in a time-division manner so that these are performed alternately. Control operation.

In addition, during the light emitting operation time for transmitting relative position information, the transmission of the relative position information is performed only with infrared light from the light emitting diode 8 in this embodiment, and other light emitting lights that output visible light are used. The diode 7 is controlled by the host side CPU 15 to be inactive during this time.

Therefore, the light emitting diode 8 containing the relative position information is reflected on the mouse pad 4, outputted to the outside via the half mirror 11 and the reflective mirror 14, and then outputted to the light receiver 3 of the image processing device 1. .

The infrared light beam containing this information is received by the light receiving element 13, converted into an electrical signal, and outputted to the mouse side CPU 15. However, the CPU 15 Since it is an output signal, the electric signal output from the light emitting elements 7 and 8 during that time is invalidated,
X and Y direction lines 5a, 5b on mouse pad 4
It is now possible to distinguish between an electrical signal based on the detection of and an electrical signal based on relative position information.

As shown in FIG. 5, the light receiver 3 that receives the infrared light including the relative position information converts the infrared light into an electrical signal and sends it to the image processing device (hereinafter referred to as the main body side).
(referred to as CPU) 21. Main body side CPU21
is a read-only memory (hereinafter referred to as ROM)2
The computer operates according to a control program stored in the computer 2, and stores various data in a readable and rewritable memory (hereinafter referred to as RAM) 23.

The main body side CPU 21 moves the cursor displayed on the CRT 2 via the display drive circuit 24 based on relative position information converted into an electric signal output from the light receiver 3.

Next, the operation of the image processing apparatus configured as described above will be explained.

Now, when the operation switch 6a of the mouse 6 is turned on, the mouse side CPU 15 turns on the light emitting diodes 7 and 8.
The operation is controlled in a time-divided manner into a light emission operation time for detecting the X and Y direction lines 5a, 5b and a light emission operation time for transmitting relative position information. When the mouse 6 is moved on the mouse pad 4, the mouse 6 emits red visible light and infrared light output from the light emitting diodes 7 and 8 disposed inside the mouse 6 onto the mouse pad 4. You will have to move while doing so.

At this time, when the irradiating light, that is, the red visible light, crosses the X-direction line 5a, the red visible light remains as reflected light, and the infrared light ray crosses the Y-direction line 5b. Sometimes, the infrared rays become reflected light as they are and are received by the light receiving elements 12 and 13. On the other hand, in other cases, the emitted light is absorbed by the mouse pad 4 and is not output as reflected light.

Each light-receiving element 12, 13 converts each of these reflected lights into an electrical signal each time it is received and sends it to the mouse side.
Output to CPU15.

The mouse side CPU 15 performs X based on each electrical signal.
Alternatively, it is determined whether or not the Y direction lines 5a and 5b have been crossed, and the amount of relative movement of the mouse 6 on the mouse pad 4 is divided into X and Y direction components and recorded in a predetermined register of the X or Y register. do. Next, the mouse side CPU 15 sequentially controls the light emitting diode 8 to emit light during the light emitting operation time to transmit the relative position information allocated in advance on a time-sharing basis in order to convert the contents of both registers into optical signals as relative position information. Output information.

Then, when this information is received by the light receiver 3,
The optical receiver 3 converts this information into an electrical signal and outputs it to the main body CPU 21. Then, the main body side CPU2
1 moves the cursor displayed on the CRT 2 based on this relative position information.

As described above, in this embodiment, the amount of movement of the mouse 6 moving on the mouse pad 4 is detected by the light emitting diodes 7 and 8, and the detection result, that is, the relative position information of the mouse 6 is transmitted to the image processing device 1 using light. This eliminates the need for a cable that connects the mouse and the image processing device as in the past, dramatically improving operability.

Moreover, the light including the relative position information transmitted to the image processing device 1 is time-divided by the light emitting operation of the light emitting diode 8 for detecting the Y-direction line 5b, and is allocated to a predetermined time slot. Therefore, a transmitter such as a light emitting diode for transmitting relative position information is not required, which is advantageous in terms of cost.

Note that this invention is not limited to the above-mentioned embodiment, and for example, as shown in FIG. may be performed separately.

Effects of the invention As detailed above, this invention uses a light-emitting element that is installed in an optical mouse to detect the relative position on the mouse pad of the optical mouse, and uses the light-emitting element to detect the relative position of the optical mouse on the mouse pad. I decided to send it to the image processing device itself, so
The operability of the optical mouse has been dramatically improved, and it has excellent effects that are advantageous in terms of cost.

[Brief explanation of the drawing]

Figure 1 is an overall perspective view of an image processing device embodying this idea, Figure 2 is an enlarged view of the main parts of the surface of the mouse pad, Figure 3 is a side sectional view of an optical mouse, and Figure 4 is an optical mouse pad. FIG. 5 is an electrical block circuit diagram of the image processing device, and FIG. 6 is a side sectional view of an optical mouse showing another example of this invention. In the figure, 1 is an image processing device, 2 is a CRT, 3 is a light receiver, 4 is a mouse pad, 5 is a grid, and 5a is an X
Direction line, 5b is the Y direction line, 6 is an optical mouse, 7 and 8 are light emitting diodes, 12 and 13 are light receiving elements, 15 is the CPU on the mouse side, 21 is on the main body side
It is the CPU.

Claims (1)

[Claims for Utility Model Registration] An image processing device comprising an image processing device main body 1 and an optical mouse 6 used on a mouse pad 4 for inputting coordinates to the image processing device main body 1. , by means of light emitting elements 7 and 8 that detect the relative position of the optical mouse 6 on the mouse pad 4 as the optical mouse 6 moves;
An image processing apparatus characterized in that relative position information of the detected optical mouse 6 is sent to the image processing apparatus main body 1.