JP2001109579A - Coordinate input and detection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coordinate input and detection device which can input coordinates remotely to a external device such as a personal computer, never uses a connection port of the personal computer, and has high operability. SOLUTION: The coordinate input and detection device is so constituted having a touch panel 23 which detects the coordinates of a point specified on a coordinate input surface with a specifying member, a remote controller 3 which remotely specifies a point on the coordinate input surface and inputs it as coordinates, an output selection part 24 which selects one of the coordinates detected by the touch panel 23 and the coordinates inputted from the remote controller 3, and a coordinate sending-out part 21 which outputs the coordinates selected by the output selection part 24 to a display 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a coordinate input / detection device for detecting input coordinates, and more particularly to a coordinate input / detection device capable of performing a remote coordinate input operation.

[0002]

2. Description of the Related Art At present, there is a coordinate input / detection device which has a predetermined plane area (coordinate input surface) and detects coordinates of a point designated on the coordinate input surface. Such a coordinate input / detection device is generally called a touch panel type coordinate input / detection device, and is used by being connected to, for example, a personal computer (personal computer). Then, the coordinate input surface is set so as to overlap the display screen of the personal computer, and information based on the coordinates input from the coordinate input surface can be displayed on the display screen of the personal computer.

[0003] Such a touch panel type coordinate input / detection device is often used for presentations because of the advantage that a caption is manually added to an image displayed on a display screen. According to such an example, there is an advantage that the instructor can operate the contents while directly pointing at the display screen, and can communicate with the audience smoothly.

[0004] Presentation software using such a touch panel type coordinate input / detection device (for example, Microsoft; Power Poi)
nt), it is designed to input an operation for switching the display screen (page turning) during a presentation from a mouse connected to a personal computer. When turning pages from a coordinate input / detection device connected to a personal computer, for example, coordinates are input by intermittently touching a coordinate input surface with a finger or a pen. And
The driver of the personal computer receives the coordinates of the touched point, converts it into a format similar to the signal input from the mouse, and turns the page.

[0005] By the way, in a presentation, it is sometimes desired that an instructor performs an operation such as turning a page on the display screen at a position away from the display screen depending on the situation. An existing configuration that enables such an operation is, for example, a presentation system described in Japanese Patent Application Laid-Open No. 8-179880.

FIG. 18 is a block diagram for explaining a coordinate input / detection device using a presentation system. FIG. 19 is a schematic diagram for describing the remote mouse shown in FIG. 18 in more detail. The configuration shown in FIG.
A personal computer 93, a remote mouse 100 for remotely inputting coordinates to the personal computer 93, and a touch panel type coordinate input unit 95 connected to the personal computer 93 for inputting coordinates.

[0007] Information on coordinates input from the remote mouse 100 and the coordinate input unit 95 is stored in a remote mouse interface (remote mouse I / F) 110, a coordinate input unit interface (coordinate input unit I / F) 951, and a mouse interface ( The data is converted by the mouse I / F 991, input to the personal computer 93, and output and displayed on the display 97 of the personal computer 93 via the display interface (display I / F) 971.

Further, as shown in FIG. 19, the remote mouse 100 has a pointing ball 100a and a transmitting antenna 100b. Pointing ball 10
0a is the coordinate specified by the transmitting antenna 100b
Is received by the remote mouse I / F 110 and further transmitted to the personal computer 93 and displayed on the display 97 as the cursor A.

With the configuration shown in FIGS. 18 and 19, the instructor can operate the display screen while directly touching the display 97 or from a position away from the display 97. Such a point is advantageous in that an optimum operation of the display screen can be selected according to the situation of the presentation, and the presentation can be effectively advanced.

[0010]

However, in the above configuration, the remote mouse I / F 11 of the remote mouse 100
0 needs to be connected to the personal computer 93. Therefore, one connection port of the personal computer 93 is used in order to use the remote mouse 100, which may affect other functions of the personal computer 93. In addition, increasing the number of connection ports of the personal computer 93 increases the cost of the presentation system.

Further, the structure of the remote mouse 100 is relatively complicated because the pointing ball 100a is embedded therein. Also, as shown in FIG. 19, the pointing ball 10 is
The configuration of rotating 0a has a disadvantage that it is difficult to operate compared to the configuration of a general mouse that rotates a trackball on a desk.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and allows coordinates to be remotely input to an external device such as a personal computer, and does not use a connection port of the personal computer. An object of the present invention is to provide a coordinate input / detection device with high operability.

[0013]

The above-mentioned problems can be solved by the following means. That is, the invention according to claim 1 is a coordinate input / detection device having a coordinate input surface and capable of inputting coordinates designated on the coordinate input surface, wherein the coordinate input / detection device is designated by a designated member on the coordinate input surface. Coordinate detecting means for detecting the coordinates of the point, coordinates remote input means for remotely designating a point on the coordinate input surface and inputting the coordinates, coordinates detected by the coordinate detecting means, It is characterized by having coordinate selecting means for selecting one of the coordinates inputted from the input means, and display output means for outputting the coordinates selected by the coordinate selecting means to a display device.

[0014] With such a configuration, one of the coordinates of a point directly specified on the coordinate input surface and the coordinates remotely input from the coordinate remote input means is output to the display device with priority. , Can be displayed. Therefore, it is possible to input coordinates from the coordinate input surface even while directly touching the coordinate input surface or remotely. Also, it is possible to prevent confusion when displaying the input coordinates.

According to a second aspect of the present invention, at least the coordinate detecting means, the coordinate selecting means, and the display output means are integrally formed as a main body, and the remote coordinate input means is separated from the main body. Wherein the coordinate remote input means stores coordinates on the coordinate input surface, a selection button corresponding to the coordinates stored in the coordinate storage means on a one-to-one basis, and the selection button When any one of the above is selected, the coordinate transmitting unit transmits coordinates corresponding to the selected selection button, while the main body includes a receiving unit receiving the coordinates transmitted by the coordinate transmitting unit. It is characterized by the following.

With this configuration, the coordinates can be input by transmitting the coordinates from the remote coordinate input means to the main body. Also, since coordinates to be transmitted can be selected by operating the selection button, the remote coordinate input means can be configured to be relatively easy to operate.

According to a third aspect of the present invention, the main body further includes selected coordinate transmitting means for transmitting the coordinates selected by the coordinate selecting means, and the coordinate remote input means transmits the selected coordinate transmitting means. The apparatus further comprises selected coordinate receiving means for receiving the set coordinates, and the coordinate storage means is rewritten with the coordinates received by the selected coordinate receiving means.

With this configuration, the coordinate storage means can be automatically rewritten with the coordinates selected by the coordinate selection means.

According to a fourth aspect of the present invention, the coordinate remote input means further comprises a rewriting state switching means for switching the coordinate storage means to a rewritable state or a non-rewritable state. Things.

With such a configuration, the coordinate storage means can be rewritten as required by operating the coordinate remote input means.

[0021] The invention according to claim 5 is characterized in that the main body further comprises rewriting designating means for designating whether to switch the coordinate storage means to a rewritable state or a non-rewritable state. It is.

With this configuration, the coordinate storage means can be rewritten as needed by operating the main body.

According to a sixth aspect of the present invention, the coordinate detecting means includes a plurality of light emitting means, a retroreflective member for recursively reflecting the light emitted by the light emitting means, and a light reflected by the retroreflective member. Light receiving means for receiving the reflected light, and detecting the coordinates of a point designated on the coordinate input surface from the light receiving state of the light receiving means.

With such a configuration, an optical coordinate having a relatively simple configuration and an advantage that a deviation between a position where the operator tries to input and a position actually input is small. A coordinate input / detection device can be configured using the detection means.

According to a seventh aspect of the present invention, the coordinate detecting means has an image capturing means for capturing an image on the coordinate input surface, and among the images captured by the image capturing means, an image relating to the designated member. And detecting the coordinates designated by the designated member.

With such a configuration, an optical coordinate system having a relatively simple configuration and having a small deviation between the position where the operator tries to input and the position actually input is small. A coordinate input / detection device can be configured using the detection means.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing the configuration of the embodiment of the present invention, a coordinate detecting means applicable to the coordinate input / detection device of the present invention will be specifically exemplified and described. First Example The coordinate detecting means of the first example includes a plurality of light emitting means, a retroreflecting member that recursively reflects the light emitted by the light emitting means, and a reflected light reflected by the retroreflecting member. Light receiving means for receiving light. Then, the coordinates of a point designated on the coordinate input surface are detected from the light receiving state of the light receiving means.

FIG. 1 is a top view for explaining the coordinate detecting means of the first example. The illustrated configuration is provided at a coordinate input surface 43 serving as a coordinate input surface on which coordinates are input by the designating member 15 such as a finger or a pointing stick, and at a position capable of receiving reflected light of light emitted by the light emitting unit and the light emitting unit. Light emitting / receiving sections 42a and 42b, which are light receiving means,
A retroreflecting member 44, which is a reflecting means for recursively reflecting the light emitted from the light emitting / receiving portion 2b, and a light receiving / emitting portion for reflecting the light reflected by the retroreflecting member 44 in accordance with an incident angle to the light receiving / emitting portions 42a and 42b. It has a condensing lens 50 (FIGS. 3 to 5) which is an optical unit for receiving light at different positions of 42a and 42b. When the configuration shown in FIG. 1 is applied to the present invention,
The coordinate input surface 43 is a planar space and is provided so as to overlap a display surface of a display device such as a display of a personal computer.

The light emitted by the light source 41 built in the light emitting / receiving section 42a spreads in a fan shape over the entire area of the coordinate input surface as a light flux having L1, L2,... For example, when attention is paid to the optical axis L3 of such light beams, the optical axis L3
(Optical axis L3 ') is reflected by the recursive retroreflective member 44 and travels through the same optical axis as the optical axis L3 toward the light emitting / receiving section 42a. The light receiving / emitting section 42a is provided with a light receiving means described later, and receives the reflected light. Such a light receiving means is configured to be able to receive the reflected light of all the light fluxes represented by the optical axes L1, L2,... Ln.

When the operator inputs coordinates by placing a designated member 15 such as a finger or a pen at a point in the coordinate input surface 43, a part of the light beam including the optical axes L1, L2,. Then, it does not reach the retroreflective member 44. For this reason, the reflected light of the light beam blocked by the designation member 15 is not received by the light receiving / emitting unit 42a,
The point where the designated member 15 is placed from the light beam not received,
That is, the optical axis of light passing through the input coordinates can be identified.

Similarly, the light beam emitted from the light source 41 of the light emitting / receiving section 42b receives the reflected light, and the optical axis passing through the coordinates inputted by the designation member 15 can be identified. In FIG. 1, the optical axis Ln emitted from the light emitting / receiving unit 42a,
An optical axis Rn emitted from 42b is an optical axis passing through the coordinates input by the designation member 15. The coordinates of the designated member 15 can be calculated as the intersection of the optical axis Ln and the optical axis Rn.

At this time, in the coordinate input / detection device of the first example, as shown in FIG. 2, the designated point (input coordinate) designated by the designation member 15 and the reference point (the light source 4) on the coordinate input surface 43.
Identify the straight line connecting the first center point) and the angle theta _L forming the straight line and the coordinate input surface 43 on the reference line (a straight line connecting between the reference point of the light source 41), detecting the angle theta _R , The optical axis Ln and the optical axis Rn passing through the coordinates input are detected. Then, as described later, the angle θ _L , the angle θ _R, and the length W of the reference line on the coordinate input surface 43 (the light emitting / receiving sections 42a, 4
2b) is used to calculate the coordinates of the designated member 15.

Next, the light emitting / receiving section 4 will be described in order to explain a specific calculation for obtaining the angles θ _L and θ _R described above.
2a, the configuration of the light receiving / emitting unit 42b and a mechanism for finding the optical axis of the shielded light will be described. In addition, the light emitting and receiving unit 42a,
42b is similarly configured. For this reason, here, only the configuration relating to the light emitting / receiving unit 42a is illustrated, and the description relating to the light emitting / receiving unit 42b is omitted.

FIG. 3 is a view schematically showing the structure of the light emitting / receiving section 42a.
FIG. The light emitting and receiving unit 42a is roughly
1, a condenser lens 50 and a light receiving element 51.
The light source 41 irradiates a fan-shaped light to the opposite side to the light-receiving element 51, and the fan-shaped light is supplied by arrows 53, 54, and 5.
8. It is considered that the light flux is a set of light fluxes irradiated or reflected in the direction of arrow 59. The light emitted in the direction of the arrow 53 is reflected by the reflecting member in the direction of the arrow 54. Then, the light advances through the condenser lens 50 and is received at the position of the point 51 b on the light receiving element 51. The light emitted in the direction of arrow 58 is reflected in the direction of arrow 59 by the reflecting member,
Light is received at a position of a point 51 a on the light receiving element 51.

As described above, the optical axis of the light emitted from the light source 41 and reflected by the retroreflecting member has a one-to-one relationship with the light receiving position. From this, the light receiving element 51
By examining the above received light intensity distribution, it is possible to know through which optical axis the shielded light has been irradiated or reflected.
Then, such an optical axis is connected to the light receiving / emitting unit 42a, the light receiving / emitting unit 4
By obtaining both of 2b, two straight lines intersecting at the point input by the designation member 15 can be obtained.

In the coordinate input / detection device of the first example, it is assumed that a CCD line sensor is used as the light receiving element 51 and a signal representing the light receiving intensity distribution on the light receiving element 51 is output to the outside. And, in this specification, hereinafter, the light receiving element 5
The signal indicating the light intensity distribution on the light receiving element 51 output by 1 is referred to as a light intensity distribution signal.

FIG. 4 is a diagram for explaining the relationship between the light receiving intensity on the light receiving element 51 and the optical axis of the shielded light. In FIG. 4, the condenser lens 50 is arranged so that the center of the condenser lens 50 coincides with the light source 41. The light emitted from the light source 41 is recursively reflected by the retroreflective member 44, and is received on the light receiving element 51 through the center of the condenser lens 50. At this time, the intensity distribution on the light receiving element 51 becomes almost uniform unless there is a light shielding element on the coordinate input surface. But,
When the light is blocked by the designated member 15 shown in the figure, the light receiving intensity of the light receiving position of the light passing through the designated member 15 on the light receiving element 51 is weakened. Note that such a point on the light receiving element 51 having a low light receiving intensity is hereinafter referred to as a dark point.

FIG. 4 shows a dark point position D _n (hereinafter also referred to as a dip position) with reference to the center point of the light receiving element 51. This D _n has a correspondence represented by the following equation (1) with an angle θ _n formed by a straight line passing through the dark point and a straight line passing through the center point of the light receiving element 51. θ _n = arctan (D _n / f) Expression (1) _where f in Expression (1) is a distance between the center of the condenser lens 50 and the surface of the light receiving element 51 as shown in FIG.

Here, the angle θ _L shown in FIG. 2 is a straight line L having an angle θ _L and a straight line passing through the center of the light receiving element 51 and the center of the condenser lens 50 as shown in the following equation (2). Is represented by a function of the angle θ _nL . θ _L = g (θ _nL ) Expression (2) where θ _nL = arctan (D _nL / f) Expression (3) The relationship between Expressions (2) and (3) is the same for the light emitting and receiving unit 42b. Holds. Therefore, θ _n on the light emitting / receiving section side is set to θ
and _nR, expressed a theta _R Figure _{2, θ R = h (θ} nR) ... Equation (4) _{where, θ nR = arctan (D nR} / f) ... Equation (5) is obtained.

Here, the coordinates P (x, y) of the point P with the origin at o in FIG. 2 are: x = W · tan θ _R / (tan θ _L + tan θ _R ) Equation (6) y = W · tan θ _L · tan θ _R / (tan θ _L + tan θ _R ) ... Expression (7) As described above, the light emitting and receiving unit 42a,
The coordinates input by the designated member 15 can be detected by detecting a dark point on the light receiving element 51 provided in the light receiving element 42b and obtaining a distance from the center of the light receiving element 51 to the dark point.

FIG. 5 is a diagram for explaining the optical system of the light emitting / receiving section 42a shown in FIG. 3 in more detail.
Is a schematic diagram for explaining the configuration of light emission and light reception of the light emitting and receiving unit 42a, (b) is a diagram showing the configuration related to light emission of the schematic diagram of (a), and (c) is a light reception diagram of (a). FIG. The light emitting / receiving unit 42a is provided in FIGS.
The configuration of light reception and light emission shown in (c) is integrally incorporated. Note that FIGS. 5A to 5C are all viewed from the directions along the coordinate axes shown in the respective drawings.

As the light source 41 of the light emitting / receiving section 42a, a light source, such as a laser diode or a pinpoint LED, capable of generating spot light whose diameter is reduced to some extent is used. Light source 4
The light emitted from 1 perpendicular to the coordinate input surface 43 is collimated by the cylindrical lens 84 only in the x direction. The light is further condensed by the cylindrical lens 85 and the cylindrical lens 86 in the y direction in the drawing.

The curvature distribution of the cylindrical lens 84, the cylindrical lens 85, and the cylindrical lens 86 is orthogonal to each other. Light that has passed through the three cylindrical lenses is condensed linearly at the light condensing part c. Since this light condensing portion c corresponds to the light source based on the coordinate detection principle described above, it will be referred to as a secondary light source hereinafter.

A not-shown slit is provided at an outlet for taking out light from a beam shaping lens group consisting of a cylindrical lens 84, a cylindrical lens 85, and a cylindrical lens 86.
Is emitted toward the coordinate input surface. This irradiation light
The coordinate input surface 43 is folded back by the half mirror 87.
(See FIG. 5B). At this time, since the irradiation light is collimated by the cylindrical lens 84, it does not spread in the vertical direction of the coordinate input surface, but becomes light parallel to the coordinate input surface.

The light spread on the coordinate input surface 43 is reflected by the retroreflective member 44 and travels through the same optical axis as when emitted, toward the beam shaping lens group (in the direction of arrow C). Then, after passing through the half mirror 87, the light passes through the condenser lens 50 and the light receiving element 5 which is a CCD line sensor.
1 is received. At this time, if the designation member 15 is on the coordinate input surface 43, the designation member 15 acts as a light shield, and a dark spot is generated in any one of the CCD image pickup elements of the light receiving elements 51. The light receiving element 51 of the CCD image sensor which has become the dark spot
D _n is obtained of the formula (2) described above from the position on the coordinates that specify member 15 is entered on the basis of the D _n can be calculated (FIG. 5 (c)).

Second Example Next, a second example of the coordinate detecting means applied to the coordinate input / detection device of the present invention will be described. The coordinate detecting means of the second example has image capturing means for capturing an image on the coordinate input surface, and detects coordinates designated by the designated member from an image relating to the designated member among the images captured by the image capturing means. Is what you do.

FIG. 6 is a schematic diagram for explaining the coordinate detecting means of the second example. The illustrated configuration includes an infrared position detection unit 61 as an image capturing unit, a control unit 76, and a pen 64 as a designation member. The infrared position detection unit 61 includes a coordinate input range (coordinate input surface) 8
And two infrared CCD cameras 62a and 62b arranged at a distance L from each other.
have. The tip of the pen 64 has an infrared LE
D63 is provided. When the configuration shown in FIG. 6 is applied to the present invention, it is assumed that the coordinate input surface 8 is provided in a planar space so as to overlap a display surface of a display device such as a display of a personal computer.

The control section 76 includes a reset signal circuit 60 for generating a reset signal a for resetting the infrared CCD cameras 62a and 62b, an infrared CCD camera 62
a, a vertical clock circuit 65 for generating a vertical clock signal b for vertical scanning of 62b, an infrared CCD camera 6
2a, horizontal clock signal c for horizontal scanning of 62b
Is generated. In addition,
The reset signal a, the vertical clock signal b, and the horizontal clock signal c are input to the infrared CCD cameras 62a and 62b,
This signal causes the infrared CCD cameras 62a and 62b to start scanning in the X and Y directions.

The control unit 76 is provided with an infrared CC
Video signals d1, d2 output by the D cameras 62a, 62b
, Peak detecting circuits 67a and 67b for outputting peak detection signals e1 and e2, an arithmetic circuit 68 for calculating coordinates inputted by the pen 64, and outputting the coordinates calculated by the arithmetic circuit to an external device. And a display circuit 75 for displaying. Also, the illustrated coordinate detection device has an audio circuit unit (not shown) that generates a warning sound or the like when the pen 64 inputs coordinates outside the image capturing range of the infrared position detection unit 61.
And operability can be further improved.

Further, the illustrated coordinate detecting device is provided with a lens magnification adjusting circuit or a focal length adjusting circuit in the infrared CCD cameras 62a and 62b, so that the coordinate input surface 8 can be adjusted.
Infrared CC according to the size of the
The resolution and detection range of the D cameras 62a and 62b can be set. In the configuration shown in FIG.
Although the infrared ray position detector 6 and the infrared ray position detector 61 are provided separately, it is also possible to integrate them by reducing the size of each circuit built in the controller 76.

FIG. 7 is a timing chart for explaining the processing of each signal performed by the coordinate detecting means shown in FIG. The reset signal a, the vertical clock signal b, and the horizontal clock signal c are simultaneously input to the infrared CCD cameras 62a and 62b at the illustrated timings. Reset signal a, vertical clock signal b, horizontal clock signal c
Input, the infrared position detection unit 61
Video signals d1, d output from the cameras 62a, 62b
2 is input to the control unit 76.

The image signals d1 and d2 are signals representing images obtained by photographing the pen 64 with the infrared CCD cameras 62a and 62b. At this time, the infrared CCD cameras 62a, 62b
, The infrared CCD cameras 62a and 62b show only the infrared LED 63, and the other portions capture black images. Therefore, strong peak signals p1 and p2 corresponding to the position of the infrared LED 63 appear in the video signals d1 and d2 output from the infrared CCD cameras 62a and 62b.

The peak detection circuits 67a and 67b detect the peak signals p1 and p2 and output the peak detection signals e1 and e2 having the peak signals q1 and q2. The peak detection signals e1 and e2 are sent to the arithmetic circuit 68. The arithmetic circuit 68 has a built-in ROM (not shown). The ROM converts the peak signals q1 and q2 appearing in the peak detection signals e1 and e2 into angle data representing the position of the infrared LED 63 as an angle. A table is stored.

The angle data is stored in the infrared LED 6
For the position of No. 3, a straight line connecting the position of the infrared LED 63 and the reference point (for example, the origin of the infrared CCD cameras 62a and 62b) on the coordinate input surface 8 is specified.
The upper reference line (for example, infrared CCD cameras 62a, 62b
Infrared LED6 at an angle between the line and the line connecting the origins
3 represents the position.

The arithmetic circuit 68 converts the peak detection signals e1 and e2 into angles as described above, and specifies two angles. And further, the infrared CCD camera 62
Using the distance L between a and 62b, the position where the infrared LED 63 is placed, that is, the coordinates input by the pen 64 is calculated. The coordinates obtained in this way are output to an external display device via the interface circuit 69 or output to the display circuit 75 for display.

Next, a method for detecting coordinates input from angle data will be specifically described with reference to FIG. FIG. 8 shows two-dimensional coordinates (x, y) input by the pen 64 using the origin (0, 0) as the origin (0, 0) of one of the origins of the infrared CCD cameras 62a and 62b (the lower left corner of the imaging range in the drawing). It is a representation.

The arithmetic circuit 68 calculates the peak detection signals e1 and e
2 is detected, and from the relationship between the peak signals q1 and q2 appearing here and the vertical clock signal b and the horizontal clock signal c based on the reset signal a, the infrared CCD camera 62a
Coordinates of the pen 64 using coordinates with the origin of the
1, y1) and the coordinates (x2, y2) of the pen 64 using the coordinates with the origin of the infrared CCD camera 62b as the origin. Then, the coordinates (x1, y1) and the coordinates (x
2, y2) and the infrared ray C using the coordinates shown in FIG.
When the position of the pen 64 viewed from the CD cameras 62a and 62b is represented by angles θ _L and θ _R , the following is obtained. θ _L = tan ⁻¹ (y1 / x1) Expression (8) θ _R = tan ⁻¹ (y2 / x2) Expression (9)

Next, the angles θ _L and θ _R are determined from the above equations (8) and (9), and the infrared CCD camera 62 a
Using the distance L between 62b, the coordinates (x, y) input by the pen 64 represented by the coordinates shown in FIG. 8 can be obtained by the following equation. y = xtan θ _L Expression (10) y = (xl) tan (π-θ _R ) Expression (11)

If x and y are obtained by using the above equations (10) and (11) as simultaneous linear equations, the coordinates (x, y) input by the pen 64 can be calculated. The arithmetic circuit 68 described above
The conversion table of (x1, y1), (x2, y)
This is stored in association with 2).

The coordinate detecting means of the second example does not require a tablet board or the like to be placed on a work table, and can effectively use a work space. Further, even when a document or the like is overlaid on the coordinate input surface 8, the coordinate can be input. Further, since the image capturing ranges of the infrared CCD cameras 62a and 62b can be variably set by the lens magnification modulation circuit section and the resolution can be set at the same time, the operability and convenience of the coordinate detecting means can be improved.

Next, the first and second embodiments of the coordinate input / detection device of the present invention will be described. Note that the coordinate input / detection devices of the first embodiment and the first embodiment can be configured using any of the coordinate detection means of the first example and the second example described above. Further, the coordinate input / detection device of the present invention has a coordinate input surface, and any type of coordinate input / detection device can be used as long as it is a coordinate input / detection device capable of inputting coordinates specified on the coordinate input surface. It can also be configured as a device. In the present embodiment described below, the first
The illustration and description of the coordinate detecting means described in the second example and the second example are omitted.

(Embodiment 1) FIG. 9 is a block diagram for explaining a configuration using a coordinate input / detection device according to an embodiment of the present invention. FIG. 10 is a block diagram for explaining Embodiment 1 of the configuration shown in FIG.
FIG. 11 is a view for explaining a coordinate remote input means of the coordinate input / detection device of the present invention. 9 and FIG.
Is a diagram common to the first embodiment and a second embodiment described below.

The configuration shown in FIG. 9 comprises a personal computer 1, a coordinate input / detection device 2 connected to the personal computer 1, and a mouse interface (mouse I / F) 91 (for example, PS-
2 mouse I / F), display 10 and display interface (display I / F) 1
01. In such a configuration, the display 10 is a display device that displays coordinates.

The coordinate input / detection device 2 according to the first embodiment
For example, it is a coordinate input / detection device having the coordinate input surface shown in FIGS. 1 and 6 and capable of inputting coordinates specified on the coordinate input surface. Then, a coordinate input unit 29, which is a coordinate detecting unit that detects the coordinates of a point specified on the coordinate input surface by a specified member such as a finger or a pen, and a point on the coordinate input surface is remotely specified, and A remote controller 3 and a receiving unit 22 as coordinate remote input means for inputting, and a coordinate input unit 29
And a coordinate sending unit 21 for outputting to the display 10 via the personal computer 1. Note that this coordinate sending unit 2
Reference numeral 1 also has a function as an interface (for example, an RS-232C serial interface) for ensuring compatibility between the coordinate input / detection device 2 and the personal computer 1.

As shown in FIG. 10, the coordinate input unit 29
A touch panel 23 which is a coordinate input surface (in the present embodiment, indicates a planar space in which coordinates can be input and a configuration for optically detecting the position of a finger or a pen) 23 and coordinates detected by the touch panel 23 And an output selection unit 24 which is a coordinate selection means for selecting any one of the coordinates input from the remote controller 3. Also, a coordinate input unit 2
Reference numeral 9 includes a receiving unit 22 that receives information on coordinates transmitted from the remote controller 3.

In the above configuration, the coordinate sending section 21 serves as a display output section for outputting the coordinates selected by the output selecting section 24 to the display device. In the coordinate input / detection device 2 according to the first and second embodiments, at least the coordinate input unit 29 including the touch panel 23, the reception unit 22, and the output selection unit 24, and the coordinate transmission unit 21 are integrally formed as a main body. And the remote controller 3 is configured as a separate body separated from the main body.

As shown in FIGS. 10 and 11, the remote controller 3 has a coordinate storage unit 31 serving as coordinate storage means for storing coordinates on the touch panel 23, and a pair of coordinates stored in the coordinate storage unit 31. Selection buttons 35, 36, 37 corresponding to 1
And a transmission instruction unit 32 that instructs the transmission unit 33 to transmit coordinates corresponding to the selected selection buttons 35, 36, and 37 when any of the selection buttons 35, 36, and 37 is selected. ing. At this time, the transmission instruction section 32 and the transmission section 33 serve as coordinate transmission means. The receiving unit 22 serves as a coordinate receiving unit that receives the coordinates transmitted by the transmitting unit 33 and outputs the coordinates to the output selecting unit 24.

The above configuration operates as follows. That is, the touch panel 23 detects coordinates input to the coordinate input surface with a finger, a pen, or the like, and outputs the coordinates to the output selection unit 24. When the coordinates input from the touch panel 23 are selected by the output selection unit 24, the coordinates are
The data is output to the personal computer 1 via the coordinate sending unit 21.

At this time, the coordinates input from the touch panel 23 include the coordinates of the position where the finger or the pen touches the touch panel 23, and the fact that the touch panel 23 has been touched.
It is output from the touch panel 23 as a coordinate sequence (hereinafter referred to as transmission data) composed of a set of flags indicating that the touch panel 23 has left the touch panel 23. And the output selection unit 2
4 is transmitted from the coordinate transmitting unit 21 as transmission data. The following is an example of this transmission data. Example of transmission data: (x1, y1 ton), (x2, y2 ton), ... (xn, ynt
on) (xn, yntoff)

However, in the transmission data described above, ton indicates that a finger or a pen touches the touch panel 23.
In addition, the last coordinate of the illustrated n coordinates (x
When the finger or pen leaves the touch panel 23 after (n, yn), (xn, yntoff) is added. PC 1
When the transmission data output by the coordinate transmission unit 21 is input and displayed on the display 10, a finger or a pen is moved to the touch panel 23 at the position of coordinates (xn, yn) by (xn, yntoff).
Judge that you have left.

On the other hand, the coordinates corresponding to the selection buttons 35 and 36 are stored in the coordinate storage section 31 of the remote controller 3 as the above-mentioned transmission data or data of another format having the same information as the transmission data. ing. As described above, each of the plurality of selection buttons 35, 36, and 37 provided on the remote controller 3 is assigned one-to-one to a unique coordinate. For this reason, the selection button 35, 36, 37 of the remote controller 3 can be assigned a unique operation of the display 10 by the personal computer 1.

More specifically, for example, the selection button 35
Is assigned to the coordinates of a position (such as a selection button) where a series of menu operations having a function of “returning a screen page” on the application screen displayed on the display 10 are assigned. It is stored in the storage unit 31. Similarly, select button 3
When assigning the operation of “page feed” to 6, the coordinates of a position (such as a selection button) at which a series of menu operations having the function of “send screen page” on the application screen displayed on the display 10 are assigned are assigned. It is stored in the coordinate storage unit 31.

In the remote controller 3 configured as described above,
For example, when the operator operates the selection button 35 of the remote controller 3, the transmission data representing the coordinates of the position where a series of menu operations having the “return screen page” function on the application screen can be performed by the transmission instruction unit 32 is the coordinates. Storage unit 3
1 and transmitted from the transmission unit 33 to the reception unit 22.

As shown in FIG. 11, the remote controller 3 is provided with a plurality of selection buttons 35, 36 and 37, so that a single remote controller 3 can instruct a plurality of operations. In the embodiment of the present invention, it is assumed that coordinates for instructing a relatively frequent fixed operation such as page turning are stored in the coordinate storage unit 31. In addition, among the illustrated selection buttons, the selection button 37
Will be described in detail in Embodiment 2.

When the receiving section 22 receives such transmission data, the output selection section 24 selects one of the transmission data and the transmission data input from the touch panel 23 and outputs the selected data to the coordinate transmission section 21. . This selection is made, for example, when transmission data from the remote controller 3 is received while an operator is inputting on the touch panel 23 (coordinate sequence of transmission data is being input), transmission data input from the touch panel 23 is prioritized. Alternatively, a rule that prioritizes transmission data input from the remote controller 3 may be set in advance, and may be performed according to this rule.

Such a rule is defined as “priority is given to the signal from the remote controller during input by the operator using the touch panel” or “always priority is given to the signal transmitted from the remote controller”. Can be When only one of the touch panel 23 and the receiving unit 22 receives the transmission data, the output selection unit 24 selects the transmission data and outputs the selected data to the coordinate transmission unit 21.

When the transmission data output to the coordinate transmission unit 21 is transmitted from the coordinate transmission unit 21 and input to the personal computer 1, the personal computer 1 operates based on the transmission data.
A command indicated at a position corresponding to the coordinates indicated by the transmission data on the display 10 is executed. Then, an instruction for displaying the execution result is output to the display 10 via the display I / F 101, and the content specified by inputting coordinates from the touch panel 23 or the remote controller 3 is displayed on the display 10. .

As the transmitting unit 33 and the receiving unit 22 having the above-described configurations, for example, an infrared wireless communication device such as IrDA or a wireless communication device using radio waves such as Blue Tooth can be used. In addition, the coordinate input / detection device according to the first embodiment can be configured as a wired communication mode in which the transmission unit 33 and the reception unit 22 are connected by a conductor.

Next, the processing of the first embodiment described above will be described with reference to a flowchart. FIG. 12 is a flowchart for explaining the processing of the first embodiment.
This shows processing performed on the coordinate input unit 29 side. When coordinates are input as transmission data (S1: Yes), the coordinate input unit 29 determines whether there is an input from the touch panel 23 (S2). It should be noted that, while the coordinate input is not performed, the process waits until the coordinate input is performed (S1: No).

If the result of determination in step S2 is that there is no coordinate input from touch panel 23 (S2: N
o), it is determined that the coordinates have been input only from the receiving unit 22, and the process proceeds to step S7, where the coordinates input from the receiving unit 22 are preferentially output (S7), and the process waits for the next coordinate input. On the other hand, when it is determined in step S2 that coordinate input has been performed from the touch panel 23 (S2: Yes),
Further, it is determined whether or not coordinate input from the receiving unit 22 has been performed (S3). As a result of this determination, if there is no coordinate input from the receiving unit 22 (S3: No), the coordinate input to the touch panel 23 is preferentially output (S6), and waits for the next coordinate input.

Further, in the judgment of step S3, the receiving unit 2
If it is determined that there has also been a coordinate input from step 2 (S
3: Yes), it is determined which of the coordinates input from the touch panel 23 or the coordinates input from the receiving unit 22 is to be preferentially output to the coordinate transmitting unit 21 by collating with a preset condition (S4). If the determination is to output the coordinates input from the touch panel 23 with priority (S5: Yes), the coordinates input from the touch panel 23 are output with priority (S6).

If the determination does not give priority to the coordinates input from the touch panel 23 (S5: No), the coordinates input from the receiver 22 are output with priority (S7). After the above processing is completed, in the flowchart shown in FIG. 12, the process returns to step S1 and waits for the next coordinate input.

The coordinate input / detection device of the first embodiment configured as described above inputs coordinates remotely to the coordinate input / detection device and displays the coordinates on a display via a personal computer. Can be. Therefore, there is no need to connect the remote controller to the personal computer, and no port of the personal computer is used for using the remote controller. Therefore, the use of the remote controller does not affect other devices connected to the personal computer. Further, since there is no need to increase the number of ports of the personal computer, it is possible to avoid an increase in the cost of the personal computer. Further, the coordinate input / detection device of the first embodiment can input coordinates by operating a selection button provided on the remote controller, so that the remote controller has higher operability than the remote mouse of the conventional presentation system. Can be provided.

(Embodiment 2) Next, Embodiment 2 of the present invention will be described. FIG. 13 to FIG. 15 are block diagrams for explaining the second embodiment. In addition,
Since the coordinate input / detection device according to the second embodiment has a configuration partially similar to the configuration of FIG. 10 described above, FIG.
1 to 15, the same components as those shown in FIG. 1 are denoted by the same reference numerals, and the description thereof will be partially omitted.

FIG. 13 is a diagram for explaining an example of a coordinate input / detection device according to the second embodiment of the present invention. FIG.
The coordinate input / detection device according to the second embodiment shown in FIG. 1 includes a coordinate input unit 20 transmitting a coordinate selected by the output selection unit 24 in a main body having a coordinate input unit 20 and a coordinate sending unit 21. It has a transmission unit 25 as a transmission means. Further, the remote controller 30 has a receiving unit 38 as selected coordinate receiving means for receiving the coordinates transmitted from the transmitting unit 25. Further, the remote controller 30 has a rewritable coordinate storage unit 39 that is a coordinate storage unit configured to be rewritten to the coordinates received by the receiving unit 38.

The coordinate input / detection device of the second embodiment configured as described above operates as follows. That is,
The coordinates input as transmission data from the touch panel 23 or the reception unit 22 are selected by the output selection unit 24, and one of them is output to the personal computer 1 via the coordinate transmission unit 21 with priority.

At this time, in the second embodiment, the selected transmission data is output to the coordinate transmission unit 21 and also to the transmission unit 25 at the same time. The transmission data output to the transmission unit 25 is transmitted to the reception unit 38 of the remote controller 30. The receiving unit 38 stores the received transmission data in the rewritable coordinate storage unit 3.
9 in a memory having a predetermined address. If data has been previously stored in this memory, the previously stored data is rewritten by transmission data received later. The transmission data obtained by rewriting the rewritable coordinate storage unit 39 can be transmitted from the transmission unit 33 to the reception unit 22 according to an instruction from the operator.

In the configuration in which the rewritten type coordinate storage unit 39 is transmitted with the rewritten transmission data in accordance with the instruction of the operator, for example, a selection button for transmitting the rewritten transmission data is set in advance, and this button is operated by the user. In this case, the transmission instruction unit 32 may read out the newly stored transmission data from the rewrite coordinate type storage unit and output it to the transmission unit 33.

When the newly stored transmission data is input to the personal computer 1 as described above, the personal computer 1 operates on the basis of this transmission data and is displayed on the display 10 at a position corresponding to the coordinates indicated by the transmission data. Execute the instruction. As a result, the previously executed instruction is executed again, and an instruction for displaying the execution result is displayed on display I / F1.
01 to the display 10, and the instructed contents are displayed on the display 10.

With this configuration, the operation for inputting the same coordinates as the previously input coordinates can be easily performed. Further, when the coordinates input from the touch panel 23 are selected by the output selection unit 24, the coordinates can be input next time from the remote controller 3, so that the operability of the remote controller 30 can be further improved.

FIG. 14 is a diagram showing another example of the configuration of the coordinate input / detection device according to the second embodiment. The configuration shown in FIG. 14 is a rewritable state switching unit which is rewritable state switching means for switching the rewritable coordinate storage unit 39 between a rewritable state and a non-rewritable state in addition to the configuration shown in FIG. 90 is included in the remote controller 300.

The coordinate input / detection device thus constructed operates as follows. That is, the coordinates input as transmission data from the touch panel 23 or the reception unit 22 are selected by the output selection unit 24, and one of them is preferentially output to the personal computer 1 via the coordinate transmission unit 21. The selected transmission data is output to the coordinate transmission unit 21 and also to the transmission unit 25 at the same time.
The data can be transmitted to the receiving unit 38.

At this time, if the rewritable coordinate storage unit 39 has been switched to the rewritable state by the rewritable state switching unit 90 on the remote controller 300 side, the receiving unit 38
Is rewritten using the received transmission data. Also,
If the rewritable coordinate storage unit 39 has been switched to a non-rewritable state by the rewritable state switching unit 90, the rewritable coordinate storage unit 39 will not be rewritten by the transmission data.

When the rewritable coordinate storage unit 39 is rewritten, the transmission data received by the receiving unit 38 is stored in a memory of the rewritable coordinate storage unit 39 having a predetermined address. When data has been stored in this memory first, the previously stored data is rewritten by transmission data received later. The transmission data obtained by rewriting the rewritable coordinate storage unit 39 can be transmitted from the transmission unit 33 to the reception unit 22 according to an instruction from the operator.

In the configuration of the second embodiment shown in FIG. 14, the "memory ON / OFF" selection button 37 shown in FIG. 11 is provided on the remote controller 300 side, and the operator presses this selection button. When turned on, the rewritable state switching unit 90 makes the rewritable coordinate storage unit 39 rewritable. When the operator turns off the selection button, the rewritable state switching unit 90 disables the rewritable coordinate storage unit 39 so that the rewritable state switching unit 90 controls the rewritable coordinate storage unit 39. Switching shall be performed.

The rewritable state described above means that
This refers to a state in which an information path for rewriting the rewritable coordinate storage unit 39 is electrically, mechanically, or logically connected. Also, a state is set in which an instruction to rewrite the rewritable coordinate storage unit 39 is executed with the transmission data received by the reception unit 38, and an instruction to transmit the transmission data from the transmission unit 25 is transmitted from the transmission unit 33. The state that is set.

On the other hand, the non-rewritable state refers to a state in which the information path for rewriting the rewritable coordinate storage unit 39 is electrically, mechanically, or logically disconnected. In addition, a state is set in which an instruction to rewrite the rewritable coordinate storage unit 39 cannot be executed with the transmission data received by the reception unit 38, and an instruction to transmit the transmission data from the transmission unit 25 is not transmitted from the transmission unit 33. The state that is set.

As described above, when the newly stored transmission data is input to the personal computer 1, the personal computer 1 operates based on the transmission data and displays the data at a position corresponding to the coordinates indicated by the transmission data on the display 10. Execute the specified instruction. As a result, the previously executed instruction is executed again, and an instruction for displaying the execution result is displayed on the display I / F.
The content is output to the display 10 via the display 101, and the specified content is displayed on the display 10.

With this configuration, the operation for inputting the same coordinates as the previously input coordinates can be easily performed. Further, when the coordinates input from the touch panel 23 are selected by the output selection unit 24, the coordinates can be input from the remote controller 300 next time. In addition, since the rewritable coordinate storage unit 39 can be switched between a rewritable state and a non-rewritable state as needed, the operability of the remote controller 300 can be further improved.

FIG. 15 is a diagram showing another configuration example of the coordinate input / detection device according to the second embodiment. The configuration shown in FIG. 15 is, in addition to the configuration shown in FIG. 14, a rewritable state which is a rewritable specifying means for specifying whether to switch the rewritable coordinate storage unit 39 between a rewritable state and a non-rewritable state. The coordinate input unit 200 has the designation unit 27.

Then, the remote controller 301 inputs the designation of the rewritable state designating section 27 to the rewritable state switching section 90, and the rewritable coordinate storage section 39 is either rewritten or non-rewritable. The crab is switched. In the configuration of the second embodiment shown in FIG. 15, the rewritable state designation unit 27 is configured as a push button switch.

The thus configured coordinate input / detection device operates as follows. That is, the coordinates input as transmission data from the touch panel 23 or the reception unit 22 are selected by the output selection unit 24, and one of them is preferentially output to the personal computer 1 via the coordinate transmission unit 21. The selected transmission data is transmitted to the coordinate transmission unit 21.
Is also output to the transmitting unit 25 at the same time, and can be transmitted to the receiving unit 38.

In the second embodiment having the configuration shown in FIG.
At this time, by operating the push button as the rewritable state designating section 27, designation is made such that the transmission data output to the transmission section 25 is transmitted to the reception section 38 or not transmitted. The transmission data is transmitted from the transmission unit 25 to the reception unit 38.
, The rewritable coordinate storage unit 39 is rewritten by using the transmission data received by the receiving unit 38 if the rewritable state switching unit 90 has switched to a rewritable state. Also, if the rewritable coordinate storage unit 39 has been switched to the non-rewritable state by the rewritable state switching unit 90, it will not be rewritten by the transmission data.

When the rewritable coordinate storage unit 39 is rewritten, the transmission data received by the receiving unit 38 is stored in a memory of the rewritable coordinate storage unit 39 having a predetermined address. When data has been stored in this memory first, the previously stored data is rewritten by transmission data received later. The transmission data obtained by rewriting the rewritable coordinate storage unit 39 can be transmitted from the transmission unit 33 to the reception unit 22 according to an instruction from the operator.

The rewritable state set by the switching of the rewritable state switching unit 90 and the rewritable state set by the rewritable state designating unit 27 refer to the path of information as electrical or mechanical. Or a state in which they are logically connected. Also, a state is set in which an instruction to rewrite the rewritable coordinate storage unit 39 is executed with the transmission data received by the reception unit 38, and an instruction to transmit the transmission data from the transmission unit 25 is transmitted from the transmission unit 33. The state that is set.

The non-rewritable state performed by switching of the rewritable state switching unit 90 and the non-rewritable state performed by the specification of the rewritable state specifying unit 27 include:
This refers to a state where the information path is electrically, mechanically, or logically disconnected. Also, a state is set in which an instruction to rewrite the rewritable coordinate storage unit 39 is not executed with the transmission data received by the reception unit 38, and an instruction to transmit the transmission data from the transmission unit 25 is not transmitted from the transmission unit 33. The state that is set.

On the other hand, the non-rewritable state specified by the rewritable state specifying unit 27 and the non-rewritable state specified by the switching of the rewritable state switching unit 90 mean that the information path is electrically or mechanically. Refers to a state where the target is logically or logically disconnected. In addition, a state is set in which an instruction to rewrite the rewritable coordinate storage unit 39 cannot be executed with the transmission data received by the reception unit 38, and an instruction to transmit the transmission data from the transmission unit 25 is not transmitted from the transmission unit 33. The state that is set.

As described above, when the newly stored transmission data is input to the personal computer 1, the personal computer 1 operates based on this transmission data, and moves to a position on the display 10 corresponding to the coordinates indicated by the transmission data. Execute the indicated instruction. As a result, the previously executed instruction is executed again,
An instruction for displaying the execution result is displayed on the display I /
The content is output to the display 10 via F101, and the specified content is displayed on the display 10.

With this configuration, the operation for inputting the same coordinates as the previously input coordinates can be easily performed. Further, when the coordinates input from the touch panel 23 are selected by the output selection unit 24, the coordinates can be input from the remote controller 301 next time. Moreover, the rewritable coordinate storage unit 39 is provided from the coordinate input unit 200 side.
Can be switched to either a rewritable state or a non-rewritable state as necessary. Therefore, the setting of the coordinate input / detection device can be diversified, and the operability of the coordinate input / detection device can be further improved.

Next, in the second embodiment described above,
The processing performed by the coordinate input / detection device shown in FIG. 15 will be described with reference to a flowchart. FIG. 16 is a flowchart for explaining the processing performed by the coordinate input / detection device shown in FIG. 15 and shows the processing performed on the coordinate input unit 200 side. FIG. 17 shows a process performed on the remote controller 301 side.

When coordinates are input as transmission data (S11: Yes), the coordinate input section 200 determines whether or not there is an input from the touch panel 23 (S12).
In addition, while the coordinate input is not performed, the process waits until the coordinate input is performed (S11: No).

If the result of determination in step S12 is that there is no coordinate input from the touch panel 23 (S12: N
o), it is determined that coordinates have been input only from the receiving unit 22, and the process proceeds to step S16, where the coordinates input from the receiving unit 22 are output with priority (S16). Then, it is determined whether or not the rewritable state is specified by the rewritable state specifying unit 27 (S18). If the rewritable state is specified (S18:
Yes), the coordinates input from the receiving unit 22 are transmitted from the transmitting unit 25 to the receiving unit 38 (S19). If the rewritable state is not specified (S18: No), the process returns to step S11 without transmitting the coordinates.

On the other hand, in step S12, the touch panel 23
If it is determined that coordinates have been input from (S1)
2: Yes), and it is determined whether or not coordinate input from the receiving unit 22 has been performed (S13). If the result of this determination is that there is no coordinate input from the receiving unit 22 (S13: N
o), the coordinates input to the touch panel 23 are output with priority (S17). Then, it is determined whether or not the rewritable state is designated by the rewritable state designation unit 27 (S1).
8) If this is specified (S18: Yes),
The coordinates input from the receiving unit 22 are transmitted from the transmitting unit 25 to the receiving unit 3.
8 (S19). If the rewritable state is not specified (S18: No), the process returns to step S11 without transmitting the coordinates.

Further, if it is determined in step S13 that there has been a coordinate input from the receiving unit 22, (S13)
13: Yes), coordinates input from the touch panel 23,
It is determined which of the coordinates input from the receiving unit 22 is to be preferentially output to the coordinate sending unit 21 by comparing it with a preset condition (S14). If the determination is to output the coordinates input from the touch panel 23 with priority (S15: Yes), the coordinates input from the touch panel 23 are output with priority (S17).

If this determination does not give priority to the coordinates input from the touch panel 23 (S15: No), the coordinates input from the receiver 22 are output with priority (S16). Then, it is determined whether or not the rewritable state is designated by the rewritable state designation unit 27 (S18). If the designation is made (S18: Ye)
s) The coordinates input from the receiver 22 are transmitted from the transmitter 25 to the receiver 38 (S19). If the rewritable state is not specified (S18: No), the process of transmitting the coordinates is omitted. After the above processing is completed, in the flowchart shown in FIG. 16, the process returns to step S11 and waits for the next coordinate input.

On the other hand, the remote controller 301
It is determined whether or not has received the rewritable state designation (S2).
1). If the receiving unit 38 has not received the rewritable state designation (S21: No), the process waits until the rewritable state designation is transmitted. Step S21
As a result of the determination, if the receiving unit 38 has received the rewritable state designation (S21: Yes), the rewritable state switching unit 90
Switches the rewritable coordinate storage unit 39 to a rewritable state (S22). Then, the rewritable coordinate storage unit 39 uses the transmission data transmitted together with the designation of the rewritable state.
Is rewritten (S23). After the above processing is completed, in the flowchart shown in FIG. 17, the process returns to step S21 and waits for the transmission of the next rewritable state designation.

In the coordinate input / detection device according to the second embodiment configured as described above, the coordinate storage unit is configured to be rewritable. Therefore, the frequently used coordinates can be stored in the rewritable coordinate storage unit 39 in accordance with the use situation of the coordinate input / detection device. The rewriting can be performed automatically or by any of the main unit and the remote controller. For this reason, the use form of the coordinate input / detection device can be diversified.

In the coordinate input / detection device according to the second embodiment, the rewritable coordinate storage unit 39 can be set to either a rewritable state or a non-rewritable state. 39 can be prevented from being rewritten. Furthermore, since the setting as to whether or not to perform rewriting can be made from the main body side, the use form of the coordinate input / detection device can be further diversified.

[0119]

The present invention described above has the following effects. In other words, according to the first aspect of the present invention, it is possible to input coordinates from the coordinate input surface even while directly touching the coordinate input surface or remotely. This eliminates the need to connect an interface for inputting coordinates from the coordinate remote input unit to an external device such as a personal computer, and using the remote coordinate input unit affects other configurations connected to the personal computer. Disappears. In addition, it is possible to provide a coordinate input / detection device that can prevent input coordinates from being confused when displayed, and can be used smoothly.

According to the second aspect of the present invention, the remote coordinate input means can be relatively easily operated. Therefore, a coordinate input / detection device with high operability can be provided.

According to the third aspect of the present invention, the coordinate storage means can be automatically rewritten. Therefore, it is possible to provide a coordinate input / detection device having high operability without rewriting the coordinate storage means.

According to the fourth aspect of the present invention, the coordinate storage means can be rewritten as required by operating the coordinate remote input means. For this reason, it is possible to perform a process of rewriting the coordinate storage means at a position distant from the coordinate input surface, and it is possible to further diversify the usage of the coordinate input / detection device. Further, when it is not desirable to rewrite the coordinate storage means, it is possible to prevent the rewriting from being performed, and it is possible to further enhance the usability of the coordinate input / detection device.

According to the fifth aspect of the present invention, the coordinate storage means can be rewritten as necessary by operating the main body. For this reason, the process of rewriting the coordinate storage means at a position close to the coordinate input surface can be performed, and the use form of the coordinate input / detection device can be further diversified. Further, when it is not desirable to rewrite the coordinate storage means, it is possible to prevent the rewriting from being performed,
The usability of the coordinate input / detection device can be further improved.

According to the sixth aspect of the present invention, a coordinate input / detection device can be constituted by using an optical coordinate detection means. For this reason, the coordinate input / detection device can be configured to have a relatively simple configuration and a small deviation between the position that the operator attempts to input and the position that is actually input.

According to the seventh aspect of the present invention, a coordinate input / detection device can be constituted by using an optical coordinate detection means. For this reason, the coordinate input / detection device can be configured to have a relatively simple configuration and a small deviation between the position that the operator attempts to input and the position that is actually input.

[Brief description of the drawings]

FIG. 1 is a top view for explaining a coordinate detection unit of a first example applied to a coordinate input / detection device of the present invention.

FIG. 2 is a diagram for explaining an outline of a coordinate calculation method in a coordinate detection unit of the first example.

FIG. 3 is a diagram for explaining a light emitting / receiving unit of the coordinate detecting unit of the first example.

FIG. 4 is a diagram for explaining a method of detecting coordinates by the light receiving / emitting unit shown in FIG. 3;

FIG. 5 is a diagram for describing the light emitting / receiving unit shown in FIG. 3 in more detail;

FIG. 6 shows a second example applied to the coordinate input / detection device of the present invention.
It is a schematic diagram for demonstrating the coordinate detection means of the example.

FIG. 7 is a timing chart for explaining processing of each signal performed by the coordinate input unit shown in FIG. 6;

FIG. 8 is a diagram for specifically explaining a method of detecting coordinates in the coordinate detecting means of the second example.

FIG. 9 is a block diagram for explaining a configuration using the coordinate input / detection device according to the embodiment of the present invention.

FIG. 10 is a block diagram for explaining Embodiment 1 of the present invention.

FIG. 11 is a diagram for explaining a coordinate remote input means of the present invention.

FIG. 12 is a flowchart for explaining the first embodiment of the present invention.

FIG. 13 is a block diagram for explaining Embodiment 2 of the present invention.

FIG. 14 is a block diagram for explaining another configuration of the second embodiment of the present invention.

FIG. 15 is a block diagram for explaining another configuration of the second embodiment of the present invention.

FIG. 16 is a flowchart for explaining Embodiment 2 of the present invention.

FIG. 17 is another flowchart for explaining Embodiment 2 of the present invention.

FIG. 18 shows a coordinate input / output using a conventional presentation system.
It is a block diagram for explaining a detecting device.

FIG. 19 is a schematic diagram for explaining the remote mouse in FIG. 18.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Personal computer 2, 20, 200 Coordinate input part 3, 30, 300, 301 Remote controller 8, 43 Coordinate input surface 10 Display 21 Coordinate sending part 22, 38 Receiving part 23 Touch panel 24 Output selection part 29 Coordinate input part 31 Coordinate storage Unit 32 transmission instruction unit 33, 25 transmission unit 39 rewritable coordinate storage unit 90 rewritable state switching unit

Claims (7)

[Claims] 1. A coordinate input / detection device having a coordinate input surface and capable of inputting coordinates specified on the coordinate input surface, wherein coordinates of a point specified by a specified member on the coordinate input surface are determined. A coordinate detecting means for detecting, a coordinate remote input means for remotely designating a point on the coordinate input surface and inputting as coordinates, a coordinate detected by the coordinate detecting means, and a coordinate input from the coordinate remote input means. A coordinate input / detection device comprising: a coordinate selection unit that selects any one of coordinates; and a display output unit that outputs the coordinates selected by the coordinate selection unit to a display device. 2. At least the coordinate detecting means, the coordinate selecting means, and the display output means are integrally configured as a main body, and the coordinate remote input means is configured as a separate body separated from the main body. The coordinate remote input means includes a coordinate storage means for storing coordinates on the coordinate input surface, a selection button corresponding to the coordinates stored in the coordinate storage means on a one-to-one basis, and one of the selection buttons. In the case of having a coordinate transmitting means for transmitting coordinates corresponding to the selected selection button,
2. The apparatus according to claim 1, wherein the main body includes a receiving unit that receives the coordinates transmitted by the coordinate transmitting unit.
The coordinate input / detection device described in 1. 3. The main body further includes a selected coordinate transmitting unit that transmits coordinates selected by the coordinate selecting unit, and the remote coordinate input unit receives the coordinates transmitted from the selected coordinate transmitting unit. The coordinate input / detection device according to claim 2, further comprising selected coordinate receiving means, wherein the coordinate storage means is rewritten with the coordinates received by the selected coordinate receiving means. 4. The coordinate remote input means according to claim 2, further comprising a rewrite state switching means for switching the coordinate storage means between a rewritable state and a non-rewritable state. The described coordinate input / detection device. 5. The apparatus according to claim 2, wherein said main body further comprises rewriting designating means for designating whether to switch said coordinate storage means between a rewritable state and a non-rewritable state. The coordinate input / detection device according to any one of the above. 6. The coordinate detecting means includes a plurality of light emitting means, a retroreflecting member that recursively reflects light emitted by the light emitting means, and receives light reflected by the retroreflecting member. And a light receiving means for detecting coordinates of a point designated on the coordinate input surface based on a light receiving state of the light receiving means.・ Detection device. 7. The coordinate detecting means has an image capturing means for capturing an image on the coordinate input surface, and the designated member is designated from an image relating to the designated member among the images captured by the image capturing means. The coordinate input / detection device according to any one of claims 1 to 5, wherein the coordinate is detected.