JPH05241767A - Computer image display device - Google Patents

Abstract

PURPOSE:To prevent the shift of eyes despite the swing of a head and to attain the selection of the cursor shift control and the processing of a specific signal with no use of hands and with no malfunction. CONSTITUTION:A two-dimensional image display element 12 is stored in a housing and fixed at a head part 8. When the part 8 is swung, the angle displacement is detected by an angle displacement extent detecting part 9. Then the position of a cursor is calculated by a cursor position control means via an angle displacement signal processing part 25. This cursor position is displayed on an image. If two winks are confirmed in 0.5sec., the start or the end of detection is defined for the shift of the cursor and then processed by a cursor shift control means. Thus the start and the end of detection of the part 25 are controlled for the angle displacement. When an eylid is kept closed for 0.8sec. or longer, this fact is inputted to a computer 27 and an icon is selected at the position of the cursor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer image display device including a microcomputer.

[0002]

2. Description of the Related Art Conventionally, there have been light pens, trackballs, joysticks, mice, etc. as devices for inputting coordinates to a computer. All of these were operated using hands, but in recent years, for the purpose of improving operability, a device that can input coordinate values to a computer or a display screen without using hands has been proposed. ing. An example of this type of coordinate value input device is disclosed in Japanese Patent Application Laid-Open No. 3-168823. This device will be described with reference to FIG. In the figure, the user is observing a display 2 connected to a microprocessor (CPU) 1, and a gyro 3, 4 is attached to the user's head.
Is attached. If the user moves his head,
With the position of the head of the user facing the display 2 as a reference, the amount of angular displacement in the vertical and horizontal directions is detected by the gyros 3 and 4. The detected signal obtained is the amplifier 5, A /
It is processed by the microprocessor 1 via the D converter 6.

In this process, the attention position on the display 2 of the user is calculated. This is the position where the cursor should be displayed, and the cursor is moved to the target position on the display 2 and displayed based on this calculated value. In this way, the cursor can be easily moved to a desired position on the display 2 without using a hand.
At the same time, the coordinate position is input to the microprocessor 1. According to the coordinate value input method using such a device,
The user can input the desired coordinate values by shaking his / her head up / down, left / right and changing the direction of the face without using hands, so compared to the case of using a pointing device such as a light pen. However, there is an advantage that the operability can be improved.

When a computer is used for the display 2 or the like, not only the cursor is moved but also some processing operation is required. For example, after moving the cursor over the icon on the display screen,
You need to select the icon. In order to perform this operation without using a hand, in addition to the function of moving the cursor described above, a function of selectively outputting a specific signal to the computer is required by the user. As a technique related to this, there is a technique described in JP-A-2-183827. This device detects a blink of a user's eye and generates a control signal according to the state.

[0005]

However, the former conventional device has the following two drawbacks. First, when performing a cursor movement operation in accordance with the amount of angular displacement of the user's head, most of the users direct their line of sight to the position to which the cursor should move, no matter what coordinate value input means is used. Maintain a good condition. In this case, in the above-mentioned device, since it is necessary to shake the head in the vertical and horizontal directions to move the cursor, the target position to which the cursor should move relatively moves. Therefore, the line of sight follows this, and there is a drawback that the user cannot fix the line of sight and the user is easily tired.

When the amount of movement of the cursor on the display 2 is Δ and the amount of angular displacement of the head is α, the ratio K of the amount of movement of the cursor to the amount of angular displacement of the head is K = Δ / α Can be defined. When K is large, the cursor can be moved to any position on the display simply by moving the head, but delicate positioning is difficult because the amount of cursor movement relative to the amount of angular displacement is relatively large. On the other hand, when K is small, the cursor movement amount with respect to the angular displacement amount is relatively small, which facilitates delicate positioning. On the other hand, when the cursor movement amount is to be increased, the head must be shaken greatly. No longer. In this case, for example, as shown in FIG. 8, the face faces away from the display 2, and it is necessary to check the cursor position with the sideways eyes, which is disadvantageous in that operability is extremely poor.

Further, in the latter device which controls the operation by the blink of the eye, since the blink is originally unconsciously performed as a physiological action, simply detecting the blink,
The method of controlling the equipment based on this causes a large number of operation mistakes, which is a serious problem.

In view of the above problems, the present invention allows the user to stare at the target position of the cursor to be moved in the image without moving the line of sight even if the user moves in the direction of the head. , An object of the present invention is to provide a computer image display device. A second object of the present invention is to provide a computer image display device capable of moving the cursor largely without deviating the head greatly and enabling delicate positioning. The third object of the present invention is to
It is an object of the present invention to provide a computer image display device capable of selectively inputting a specific signal to a computer without using a hand and without malfunction.

[0009]

A computer image input apparatus according to the present invention detects an angular displacement detecting means for detecting a movement of a user's head and a desired cursor position based on an output signal from the angular displacement detecting means. Cursor position control means for obtaining, a display means for displaying an image and a cursor based on an image signal output from a computer and a signal indicating the cursor position output from the cursor position control means, at least the display means is provided. It is characterized by being housed in a housing that can be mounted on the head of the user. Further, it is characterized in that cursor movement control means for controlling the start and end of the detection of the movement of the head by the angular displacement detection means is provided. Further, there is provided eyelid opening / closing detection means for detecting the opening / closing of the user's eyelids, and an output signal from the eyelid opening / closing detection means is supplied to the cursor movement control means so that at least the movement and stop of the cursor by opening / closing the eyelids. It is characterized by controlling.

[0010]

When the user observing the screen of the display means shakes his / her head vertically or horizontally, the angular displacement detection means detects the angular displacement of the head, and the cursor position control means calculates the cursor position to be moved. The cursor is moved to a calculated position on the display screen while being input to the computer, but the display means is always in a position facing the user's face regardless of the rotation angle of the head. or,
If the cursor does not reach the desired position even if the user moves the head to some extent, the cursor movement control means temporarily ends the detection of the angular displacement of the head and the movement of the cursor at the position where the cursor is moved to a certain extent. After returning the head to an appropriate position, the cursor movement control means is operated to start detection, and the angular displacement detection is restarted by shaking the head again,
The cursor movement is restarted based on the detection result. In this way, the cursor can be largely moved by repeating the relatively small rotation of the head. Further, by detecting the opening and closing of the eyelid and converting it into a signal, it is possible to control the detection start and end of the angular displacement detection means by the cursor movement control means without using a hand.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to FIGS. 1 is a schematic configuration diagram of an embodiment of the present invention, FIG. 2 is a partial external perspective view of a computer image display device according to the present embodiment, FIG. 3 is a diagram showing a configuration of an angular displacement signal processing unit, and FIG. A functional block diagram of essential parts of the present embodiment,
FIG. 5 is a configuration diagram of the eyelid opening / closing signal processing unit, and FIG. 6 is a diagram showing a flowchart of this embodiment. In FIG. 1, the user's head 8 is attached and fixed to an angular displacement amount detection unit 9 for detecting a rotation angle when the head 8 is shaken vertically and horizontally. An electric signal corresponding to the change in the direction of 8 is output. As the angular displacement amount detector 9, for example, a piezoelectric vibration type gyro is used.

On the front surface of one eye (ball) 8a of the user,
A two-dimensional image display element 12 is arranged via an eyepiece lens 11. Eyepiece 11 and two-dimensional image display element 12
The dichroic mirror 13 is disposed on the optical path between the and, and the infrared light emitted from the infrared light emitting diode 14 located outside the optical path passes through the projection lens 15 and becomes collimated light. Reflected,
The two-dimensional image display element 12 overlaps the optical path of the image. The dichroic mirror 13 has a characteristic of efficiently transmitting visible light and does not interfere with image observation of the two-dimensional image display element 12. Although not shown in the drawing, the two-dimensional image display element 12 and the eyepiece lens 11 are similarly provided on the front surface of the other eye 8b of the user.
Are provided. Further, the infrared light from the infrared light emitting diode 14 is reflected by one eye 8a (eye 8a
A light receiving lens 16 and a light receiving element 17 are sequentially arranged on the reflected light path (on the side surface). When the eyelid is closed, infrared light is scattered on the surface of the eyelid, a part of the infrared light is incident on the light receiving lens 16, and is condensed by the light receiving element 17 to be received.
Also, when the eyelids are open, most of the infrared light passes through the cornea and travels to the inside of the eyeball, and part of it is reflected on the corneal surface, but this reflected light is specular reflection on the corneal surface. ,
It does not spread significantly. Therefore, the light receiving lens 16
The light receiving element 17 does not receive light.
In order to improve the SN ratio, it is preferable to use the light receiving element 17 that can efficiently detect only infrared light. If an element having high sensitivity to visible light is used, a sharp cut filter that blocks visible light may be arranged in front of the light receiving element 17.

Then, the angular displacement detection unit 9, the pair of two-dimensional image display elements 12, the eyepiece lens 11, the infrared light emitting diode 14, the projection lens 15, the dichroic mirror 1 are provided.
3, the light receiving lens 16 and the light receiving element 17 are housed in the housing 19 shown in FIG. 2, and by mounting the belt 20 fixed to the housing 19 on the head 8 of the user,
These members can be shaken vertically and horizontally together with the head 8. Further, the housing 19 is formed with a pair of peep holes 21a and 21b at positions facing the left and right eyes 8a and 8b of the user 8 when mounted on the head 8, and the user can see through the peep holes. The image of the two-dimensional image display element 12 can be observed as a projection image by the eyepiece lens 11. The transmitting unit 22 and the receiving unit 23 located on one side surface of the housing 19 are for transmitting and receiving necessary signals to and from an external computer by optical communication as described later.

Further, in FIG. 1, the electric signal output from the angular displacement amount detection unit 9 is input to the angular displacement signal processing unit 25, and a digital signal regarding the orientation of the head 8 is output to the control unit 26. The control unit 26 receives the image information from the computer 27, the eyelid opening / closing signal detected by the light receiving element 17 input from the eyelid opening / closing signal processing unit 28, and the angular displacement signal processing unit 25 detects the head 8 It controls the start and end of detection of angular displacement, icon selection processing, and the like. Then, the control unit 26 outputs a video signal obtained by superimposing the image and the position-controlled cursor to the pair of two-dimensional image display elements 12. In the present embodiment, the angular displacement detection unit 9, the angular displacement signal processing unit 25, and the eyelid opening / closing signal processing unit 28.
Is also stored in the housing 19.

The angular displacement signal processing unit 25 shown in FIG. 3 includes an amplifier 30 for amplifying the input signal from the angular displacement amount detection unit 9,
Signal components (high frequency components) due to minute vibrations of the head such as shaking
, And a low-pass filter 31 that passes only a signal representing a large movement of the head 8 for moving the cursor,
It is composed of an A / D converter 32 for A / D converting this signal.

In the control unit 26 shown in FIG. 4, the digital signal indicating the angular displacement output from the angular displacement signal processing unit 25 is input to the cursor position control means 33, and the display screen of the two-dimensional image display element 12 is displayed. The position of the cursor to be displayed is calculated. The above-mentioned K value is used for this calculation, but in order to improve operability, a large K value is used when the angular displacement amount (angular velocity) per unit time is large, and the K value per unit time is also large. When the amount of angular displacement is relatively small, a relatively small K value is used.
That is, the K value is not a constant, but is treated as a function of the rotation speed of the head 8. Therefore, if the head 8 is swung quickly, the cursor can be largely moved with a small amount of swing, which is convenient when it is desired to move the cursor largely. or,
If the head 8 is slowly rotated, the cursor moves only slightly even if the amount of swing is relatively large, so that delicate positioning can be easily performed. This calculation result is input to the signal conversion unit 34 having a function as an interface, superimposed on the image signal supplied from the computer 27 and output to the two-dimensional image display element 12 as a video signal, and also to the computer 27. Is output.

On the other hand, an eyelid opening / closing signal detected by the light receiving element 17 and photoelectrically converted is input to the eyelid opening / closing signal processing unit 28, which binarizes the eyelid opening / closing signal, as shown in FIG. An amplifier 36 that performs V conversion and amplification, a bandpass filter 37 that removes noise of high-frequency and low-frequency signals other than signals that indicate the opening and closing of the eyelid, and a binarization unit that binarizes the signal that has passed through this filter 37. And 38 are provided. Then, the binarized signal is input to the cursor movement control means 39 in the control unit 26 shown in FIG. The cursor movement control means 39 determines from the eyelid opening / closing signal the start and end of measurement of the angular displacement due to the movement of the head 8, and the angular displacement signal processing unit 2
The control signal is output to the computer 5 and the icon selection process is input to the computer 27 by the eyelid opening / closing signal. The A timer 40 receives an eyelid opening / closing signal from the cursor movement control means 39 to determine icon selection. For example, when the eyelid remains closed for more than 0.8 seconds, the icon selection processing is cursor movement controlled. The computer 27 is instructed via the means 39.
Further, the B timer 41 receives an eyelid opening / closing signal from the cursor movement control means 39 and determines whether to start or end the measurement (detection) of the angular displacement due to the movement of the head 8, for example, about 0.5 seconds. A signal for starting or ending the measurement of angular displacement is alternately output to the cursor movement control means 39 when the blink is made twice. Cursor movement control means 39, A timer 40 and B timer 4
Reference numeral 1 constitutes a switch signal generating means.

This embodiment is constructed as described above,
Next, the operation will be described. First, the user holds the housing 19 fixed to the head 8 with the band 20 while the eyes 8
Images obtained by superimposing the cursor of the two-dimensional image display element 12 through the peepholes 21a and 21b by a and 8b are respectively projected by the eyepiece lens 11 and observed. Then, when the user wants to move the cursor on the image from the current position to another position such as an icon, the eyelid blinks twice within 0.5 seconds to make angular displacement as described later. Signal processing unit 25 detection (measurement) start state (ON
State), and the head 8 is shaken vertically or horizontally. Then, the rotational direction, the angle and the angular velocity of the head 8 are detected by the angular displacement detection unit 9 mounted on the head 8 and input to the angular displacement signal processing unit 25. In the angular displacement signal processing unit 25, the low-pass filter 31 removes high-frequency noise components due to minute vibrations of the head 8 due to shaking, etc.
A digital signal indicating the angular displacement of is input to the cursor position control means 33 of the control unit 26.

In the cursor position control means 33, an appropriate K value is set according to the angular velocity, and a desired cursor position is calculated from the current position based on this K value, the turning direction and the turning angle of the head 8. It Here, if you shake the head 8 quickly,
The cursor can be moved largely with a slight amount of swing, and if the head 8 is slowly shaken, the amount of movement of the cursor is small, so delicate positioning can be easily performed. The result of this operation is
The signal indicating the cursor position is output to the signal conversion unit 34, superimposed on the image signal and input to the two-dimensional image display element 12 as a video signal, and the cursor moved to a desired position is displayed on the image. The signal indicating the cursor position is also input to the computer 27. Then, if the blinking is performed twice within 0.5 seconds, the detection (measurement) based on the signal from the angular displacement amount detection unit 9 by the angular displacement signal processing unit 25 ends (OFF state), and the head 8 is moved. However, the cursor is held at that position.

In the present embodiment, even if the head 8 is shaken to move the cursor, the two-dimensional image display element 12 is fixed to the head 8 by the housing 19,
The image does not move visually because it moves together with the movement of the head 8. Therefore, even if you move the cursor, the cursor will always be visible in a fixed position with respect to the user's face,
There is no need to change the direction of the line of sight. Then, after moving the cursor to a desired position and closing the eyelid for 0.8 seconds or more, the cursor position is determined and the icon selection process at that position is performed.

Next, the cursor movement control by opening and closing the eyelids will be described with reference to the flowchart of FIG. 6 together with the next processing operation by the position determination after the cursor movement. The infrared light emitted from the infrared light emitting diode 14 becomes collimated light by the projection lens 15, is reflected by the dichroic mirror 13, and is superimposed on the optical path of the image of the two-dimensional image display element 12. Further, the infrared light is condensed by the eyepiece lens 11 in the vicinity of the corneal surface of the one eye 8a of the user. Here, when the eyelids are open, a part of the infrared light is reflected on the corneal surface, but since the reflection on the corneal surface is specular reflection, it does not greatly diffuse, and the infrared rays are not reflected by the light receiving element 17. Does not detect light. On the other hand, when the eyelid is closed, infrared light is scattered on the surface of the eyelid, and a part of the infrared light is received by the light receiving lens 1.
The light is collected on the light receiving surface of the light receiving element 17 via 6 and detected.
A photoelectric conversion signal is output.

The eyelid closing signal detected by the light receiving element 17 is
It is binarized by the eyelid opening / closing signal processing unit 28 and input to the cursor movement control means 39 in the control unit 26. When this signal input detects that the eyelids are closed (see FIG. 6) (process 100), the process branches to a series of processes for determining whether it is blinking or an icon selection process instruction. ..
That is, the eyelid closing signal is input to the A timer 40, the timer is cleared to 0, and the measurement of the eyelid closing time is started (processes 101 and 102). Then, it is detected that the eyelid is continuously closed for 0.8 seconds or more (Process 1
03), it is determined that the eyelid is closed at the cursor position for selecting an icon, the cursor coordinate position is confirmed, and the icon movement processing means 39 instructs the computer 27 to the computer 27 (processing 104). In this way, the icon selection process is performed without using hands.

Further, the closure of the eyelids is detected (process 100).
Then, if the eyelid is opened within 0.8 seconds (process 102),
This signal is input to the B timer 41, and the next blink is 0.
It is determined whether the input is made within 5 seconds (Process 10).
5, 106). That is, with the first blink signal, the B timer 41
The timer of is cleared to 0 (process 106), the execution is returned to process 100, the second blink signal is input, and the process 1
Wait for detection at 02. The next blink is detected and input by the light receiving element 17 (processes 100 and 102).
Then, the B timer 41 determines whether the time required from the first blink to the second blink is within 0.5 seconds (process 105). If it is 0.5 seconds or more, it is not regarded as a continuous blink, and the execution is returned to the process 100.

If the time is within 0.5 seconds, it is determined that the instruction is to start (ON) or end (OFF) the detection of the movement of the head 8, and the angular displacement signal processing section 25 determines the angle. If the signal input from the displacement amount detector 9 is in the detection state, the detection is ended, and if it is in the end state, the detection start is executed alternately (process 107). Therefore, as described above, at the start of the cursor movement, the blink is reduced to 0.
It is performed twice within 5 seconds, and the head 8 is shaken to start moving the cursor. Further, based on this determination, the angular displacement signal processing unit 25 is instructed to clear the angular displacement amount. This is to clear the angular displacement amount to 0 because it is desired to move the cursor position by the angular displacement amount based on the orientation of the head 8 when the detection is started.

Further, when it is detected in the processing 100 that the eyelids are not closed, the processing directly proceeds to the processing 108, and the detection by the angular displacement signal processing unit 25 is started in the processing 107 (O.
N) or end (OFF) is detected. If it is in the ON state, as described above, the angular displacement amount detected by the angular displacement amount detection unit 9 is fetched from the angular displacement signal processing unit 25 into the cursor position control means 33 of the control unit 26 (processing 109), and the acquired angular displacement amount is acquired. Based on the above, the cursor position is changed (process 110). If it is OFF, the process returns to step 100 without doing anything.

When the cursor cannot be moved to the desired position by one rotation of the head 8, the head 8 is shaken to some extent and the cursor is moved within 0.5 seconds. Blinking is performed twice, the output of the digital signal indicating the angular displacement amount by the angular displacement signal processing unit 25 is ended (OFF), and the cursor is fixed at that position. Then, the head 8 is once returned to the original position, blinking is performed twice within 0.5 seconds again, the angular displacement signal processing unit 25 is set to the detection start (ON) state, and the head 8 is rotated again. Move the cursor from the stop position.
Repeating such operation, with the cursor reaching the desired position on the screen and overlapping the desired icon,
Blinks twice to complete cursor movement within 0.5 seconds. Then, if the eyelids are closed for 0.8 seconds or more, this becomes a signal for icon selection as described above.

As described above, according to the present embodiment, the user can see the image from the computer 27 and the cursor overlaid on the image, and even if the user shakes his / her head to move the cursor, the image is always displayed in front. Since it can be caught and the line of sight is not moved, eye fatigue can be significantly reduced. or,
Since the K value can be set according to the angular velocity, large movement and minute movement of the cursor can be automatically controlled. Further, since the movement of the cursor and its stopping can be easily and arbitrarily controlled without using a hand, the movement of the cursor can be divided into several times, and it is not necessary to shake the head greatly. Moreover, icon selection processing can be performed without using hands. In addition, physiological blinks that cause an erroneous signal can be determined by the analysis by the switch signal generating means and eliminated, so that there is no risk of malfunction.

In the above-described embodiment, the cursor and the image are combined by the signal conversion unit 34 in the control unit 26, but instead of this, a signal indicating the cursor position from the cursor position control means 33 is sent to the computer 27. May be input to the two-dimensional image display element 12 to generate a video signal in which the image and the cursor are combined in the computer 27. The members housed in the housing 19 are not limited to those of the above-described embodiment, and the angular displacement signal processing unit 25, the control unit 26, the eyelid opening / closing signal processing unit 28, etc. are separate from the housing 19. You may comprise. With this configuration, the housing 19 can be made smaller and lighter,
The operation of shaking the head 8 becomes easy. In addition, the operation for control by opening and closing the eyelids includes two blinks within 0.5 seconds and 0.
Needless to say, the eyelid closing state is not limited to 8 seconds or more, and an appropriate eyelid opening / closing operation can be selected. Furthermore, the control contents by opening and closing the eyelids are not limited to the cursor movement, the stop, etc. in the above-described embodiment.

When voice output is also performed, a speaker may be provided at a portion that contacts the left and right ears of the user. or,
The angular displacement amount detection unit 9 and the angular displacement signal processing unit 25 form an angular displacement detection unit, and the eyelid opening / closing signal processing unit 28, the infrared light emitting diode 14, the light receiving element 17, and the like form an eyelid opening / closing detection unit.

[0030]

As described above, in the computer image display apparatus according to the present invention, the display means is mounted on the head of the user, so that the image on the display is always displayed even if the head is moved for moving the cursor. Since it can be positioned in front of the head and the line of sight does not move, the fatigue of the eyes of the user can be significantly reduced. Further, since the cursor movement control means is provided, it is not necessary to move the head greatly even when the cursor is moved a large distance, and the operation and control by moving the head becomes easy. Further, since the eyelid opening / closing detection means is provided, there is an advantage that a specific signal such as the start and end of detection of the cursor can be selectively operated without using a hand, and there is no possibility of malfunction.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of an embodiment of the present invention.

FIG. 2 is a perspective view of a housing and a band in which a main part configuration of the present embodiment is stored.

FIG. 3 is a block diagram showing a configuration of an angular displacement signal processing unit.

FIG. 4 is a functional block diagram showing a main configuration of the present embodiment.

FIG. 5 is a block diagram showing a configuration of an eyelid opening / closing signal processing unit.

FIG. 6 is a flowchart of an example.

FIG. 7 is a configuration diagram of a main part of a conventional computer image display device.

8 is a diagram showing a positional relationship between a user's head and a display in the device shown in FIG.

[Explanation of symbols]

9: Angular displacement amount detection unit, 12: Two-dimensional image display element,
14 ... Infrared light emitting diode, 17 ... Light receiving element, 1
9 ... Housing, 25 ... Angular displacement signal processing unit, 26 ...
... control unit, 27 ... computer, 28 ... eyelid opening / closing signal processing unit, 33 ... cursor position control means, 39 ... cursor movement control means.

[Procedure amendment]

[Submission date] December 4, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 3

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

[0009]

A computer image input apparatus according to the present invention detects an angular displacement detecting means for detecting a movement of a user's head and a desired cursor position based on an output signal from the angular displacement detecting means. Cursor position control means for obtaining, a display means for displaying an image and a cursor based on an image signal output from a computer and a signal indicating the cursor position output from the cursor position control means, at least the display means is provided. It is characterized by being housed in a housing that can be mounted on the head of the user. Further, it is characterized in that cursor movement control means for controlling the start and end of the detection of the movement of the head by the angular displacement detection means is provided. Further, a lid opening / closing detection means for detecting the opening / closing of the user's eyelids is provided, and the number of times of opening / closing of the eyelids and the opening / closing time of the eyelids are analyzed from the output signal of the eyelid opening / closing detection means to selectively output a specific signal to a computer. It is characterized by inputting.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0015

[Correction method] Change

[Correction content]

The angular displacement signal processing unit 25 shown in FIG. 3 includes an amplifier 30 for amplifying the input signal from the angular displacement amount detection unit 9,
A low-pass filter 31 that removes a signal component (high-frequency component) due to vibration such as a slight shake of the head and passes only a signal representing a large movement of the head 8 for moving the cursor.
And an A / D converter 32 for A / D converting this signal.

Claims (3)

[Claims] 1. An angular displacement detection means for detecting a movement of a user's head, a cursor position control means for obtaining a desired cursor position based on an output signal from the angular displacement detection means, and an image output from a computer. Display means for displaying an image and a cursor on the basis of a signal and a signal indicating the cursor position output from the cursor position control means, wherein at least the display means is a housing attachable to a user's head. Computer image display device stored. 2. The computer image display device according to claim 1, further comprising cursor movement control means for controlling the start and end of detection of the movement of the head by the angular displacement detection means. 3. An eyelid opening / closing detection means for detecting opening / closing of a user's eyelid is provided, and an output signal from the eyelid opening / closing detection means is supplied to the cursor movement control means to open at least a cursor by opening / closing the eyelid. The computer image display device according to claim 2, wherein the movement of the computer image is controlled.