JP3640847B2 - Coordinate input device and cursor movement control method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a coordinate input device that performs an input operation on a multidirectional input switch and moves a cursor displayed on a display in a selection direction selected by the multidirectional input switch, and a cursor movement control method.
[0002]
[Prior art]
  Conventionally, a coordinate input device 100 using a multidirectional input switch 101 as shown in FIG. 7 is known as a coordinate input device for controlling movement of a cursor displayed on a display of a personal computer (hereinafter referred to as a personal computer), for example. .
[0003]
  As the multi-directional input switch 101, for example, a 16-directional switch is used. In the illustrated example, the multi-directional input switch 101 is attached to the same case 100a as the coordinate input device 100.
[0004]
  The 16-direction switch 101 is configured by arranging eight input detection switches (not shown) at intervals of 45 degrees around the operation knob 101a supported upright. When the operation knob 101a is tilted in the direction of a specific input detection switch, the input detection switch is pressed by the operation knob 101a to be turned on, and an input operation with the direction of the input detection switch as the selection direction is detected. Further, when the operation knob 101a is tilted in the direction between the input detection switches, two input detection switches adjacent to each other in the direction are simultaneously turned on, and an input operation with the selection direction between the input detection switches can be detected. Accordingly, it is possible to detect an input operation in one direction selected from 16 directions at intervals of 22.5 degrees.
[0005]
  When the input operation by the operation knob 101a is detected by the ON operation of any one or two input detection switches, the 16-direction switch 101 detects the input operation from the transmission frame including the direction data indicating the selected direction. For example, it is generated with a period of 50 msec (milliseconds).
[0006]
  The coordinate input device 100 includes a data generation unit (not shown) that generates cursor control data based on a transmission frame generated by the 16-direction switch 101 and outputs it to the personal computer 102. The cursor control data is output to the personal computer 102 at the same 50 msec cycle as the transmission frame input cycle, for example.
[0007]
  FIG. 8 shows the data format of the cursor control data. The coordinate input device 100 can be used in place of the mouse as the same format as the data output from the mouse to the personal computer 102. The cursor control data consisting of 3 bytes includes the relative movement control data of the cursor in the orthogonal X and Y coordinate axis directions. That is, the relative movement amount x in the X coordinate axis direction and the relative movement amount y in the Y coordinate axis direction of the cursor to be moved are determined by 8 bits at positions indicated by X0 to X7 and Y0 to Y7, respectively.
[0008]
  In addition, the cursor control data includes switch bits L and R indicating the operation state of the left and right push button switches provided in the mouse, but the description thereof is omitted here.
[0009]
  As shown in FIG. 7, when the operation knob 101a is tilted in the direction of the Y coordinate axis 22.5 degrees with respect to the X coordinate axis and the input operation is performed, the input detection switches arranged on both sides of the tilt direction are turned ON. A transmission frame having a direction of 5 degrees as a selection direction is output to the data generation unit.
[0010]
  The data generation unit generates relative movement control data of the cursor control data so that the cursor moves on the display according to the selection direction included in the transmission frame. That is, when the selection direction is 22.5 degrees with respect to the X coordinate axis, x1 so that the ratio of the relative movement amount x1 in the X coordinate axis direction to the relative movement amount y1 in the Y coordinate axis direction is 2: 1. , Y1 is obtained and represented by bits at positions X0 to X7 and Y0 to Y7.
[0011]
  Therefore, on the display 103 of the personal computer 102 to which the cursor control data is input, as shown in the figure, the starting point “O” is changed to “O ₁ The cursor moves with relative movement amounts x1 and y1 to the position “and moves in a direction corresponding to the tilt direction of the operation knob 101a.
[0012]
  The values of the relative movement amount x1 in the X coordinate axis direction and the relative movement amount y1 in the Y coordinate axis direction are arbitrary, but determine the movement speed of the cursor. The reference values x0 and y0 are multiplied by an appropriate speed coefficient k to obtain x1 and y1.
[0013]
  By the way, when adjusting the display position of the cursor on the display, it is necessary to slow down the cursor speed. Conversely, when moving a long distance on the display, it is necessary to increase the movement speed. All the requirements cannot be satisfied by simply multiplying by the same speed coefficient k.
[0014]
  Therefore, in the conventional coordinate input device 100, when an input operation of the 16-direction switch 101 is first detected and a transmission frame is input, as long as the speed coefficient k is set to the minimum value and the input operation is continuously detected, The speed coefficient k is gradually increased to a predetermined value, and the value is fixed when it reaches a predetermined value. As a result, the cursor moves while accelerating in the selection direction as long as the operation knob 101a is tilted (as long as the input operation is continued), moves at a constant speed at a constant speed after a certain time, and satisfies the above-described requirements. Control becomes possible.
[0015]
  Similarly, in order to satisfy the above-described requirement, while the input operation is detected several times in succession using the two kinds of speed coefficients k1 and k2, the speed coefficient k1 having a small value is used. When the input operation is detected continuously, a method of multiplying the speed coefficient k2 having a large value and controlling the movement of the cursor at a two-stage speed is also employed.
[0016]
  In this way, by changing the speed coefficient k, as shown in FIG.O ₁ The cursor that has moved to the position of "" increases the speed by continuing to input the operation knob 101a.O ₂ Move to the position.
[0017]
[Problems to be solved by the invention]
  However, in the former method in which the velocity coefficient k is gradually increased, the cursor moves at a constant acceleration at the beginning of the input operation, and thus there is a problem in that it is not possible to perform detailed movement control of the cursor according to the operation purpose. That is, in the fine adjustment operation of the cursor position, it is preferable to control the movement of the cursor at a low speed, at a constant speed or at a reduced speed. However, since the cursor is moved at a constant acceleration, the operation feeling is poor.
[0018]
  In the latter method, the cursor can be moved at a constant speed at a low speed. However, when the speed coefficient changes from k1 to k2, the moving speed of the cursor abruptly changes, causing a sense of incongruity and the vicinity of this boundary. When trying to stop the cursor, the operability was extremely poor.
[0019]
  Furthermore, in any method, the reference values x0 and y0 are determined from the direction data of the transmission frame at a ratio that matches the selected direction, and as long as the input operation is detected, the transmission frame that is input continuously is detected. It is necessary to calculate the relative movement amount x in the X coordinate axis direction and the relative movement amount y in the Y coordinate axis direction by multiplying by the speed coefficient k determined from the number of receptions c.
[0020]
  Therefore, there is a problem that the generation process of the cursor control data is complicated.
[0021]
  The present invention has been made to solve such a problem, and provides a coordinate input device and a cursor movement control method that have good response characteristics of cursor movement control by a multi-directional input switch and good operability. Objective.
[0022]
  It is another object of the present invention to provide a coordinate input device and a cursor movement control method that can easily generate cursor control data for moving a cursor to a selection method designated by a multidirectional input switch.
[0023]
[Means for Solving the Problems]
  The coordinate input device according to claim 1 detects an input operation for selecting one direction from a plurality of directions, and outputs a transmission frame including direction data representing the selected direction at a predetermined cycle while detecting the input operation. A multi-directional input switch for inputting a transmission frame, the number of continuous generation of transmission frames, and a data generation unit for generating cursor control data for controlling movement of the cursor displayed on the display from the direction data included in the transmission frame; In the coordinate input device that outputs the cursor control data from the data generation unit and controls the movement of the cursor in the selection direction,
  The data generation unit displays the unit movement position in each direction that can be selected with the multidirectional input switch.RespectivelyApproximate X and Y components consisting of integer values on orthogonal X and Y coordinate axes,The approximate integer values of the X and Y components are expressed as a sum of the same number of signed bit data by combining signed bit data consisting of any one of “+1”, “0”, and “−1”.Extracted from the direction data table and the direction data table, which are expressed as basic patterns and repeated for each direction.Number of bit dataAnd a moving data table that represents the relationship with the number of times of continuous generation of transmission frames,
  Each time a transmission frame is input, the movement data table is referenced and extracted from the direction data table based on the number of continuous generations of the transmission frame.Number of bit dataFor the selected direction from the direction data table.Signed bit dataObtained with reference to the moving data tableNumber of bit dataExtracted, extractedNumber of bit dataofSigned bit data for each X and Y componentEach sum is obtained, and cursor control data for moving the cursor on the display relative to each other in the X and Y coordinate axes in the direction of the X and Y components is generated.
[0024]
  According to another aspect of the cursor movement control method of the present invention, an input operation for selecting one direction from a plurality of directions is detected, and a transmission frame including direction data indicating the selected direction is detected at a predetermined cycle while the input is detected. In the cursor movement control method for controlling the movement of the cursor displayed on the display from the number of times of continuous generation of transmission frames and the direction data included in the transmission frames,
  Each time a transmission frame is generated, the number of consecutive generations of the transmission frame and extractionNumber of bit dataExtracted from the number of continuous generations of transmission frames with reference to the movement table showing the relationshipNumber of bit dataAnd select the unit movement position in each of the multi-directional directions that can be selected.RespectivelyApproximate X and Y components consisting of integer values on orthogonal X and Y coordinate axes,The approximate integer values of the X and Y components are expressed as a sum of the same number of signed bit data by combining signed bit data consisting of any one of “+1”, “0”, and “−1”.Refer to the direction data table that is represented by the basic pattern and repeats the basic pattern in each direction for each direction, and the selected direction is selected from the direction data table.Signed bit dataWas obtained with reference to the moving table.Number of bit dataExtracted, extractedNumber of bit dataofFor signed bit data, X and Y componentsAnd the cursor on the display is moved relative to the X and Y coordinate axes in the X and Y coordinate axis directions.
[0025]
  The direction data table approximates the unit movement position in each direction that can be selected with the multi-directional input switch to X and Y components consisting of integer values on orthogonal X and Y coordinate axes,Each integer value of the approximated X and Y components is represented by the sum of the same number of signed bit data.It is represented by a basic pattern, and this basic pattern is repeated continuously. Therefore, from the direction data table,Signed bit dataCan be obtained without calculating the ratio between the X component of the X coordinate axis and the Y component of the Y coordinate axis, which approximates the selection direction.
[0026]
  The movement data table is extracted from the direction data tableNumber of bit dataIs expressed in relation to the number of continuous generations of transmission frames. The number of continuous generations of transmission frames is proportional to the time during which the multidirectional input switch continues to perform input operations because the multidirectional input switch periodically outputs transmission frames while detecting input operations. To do. Also extract from direction data tableNumber of bit dataBySigned bit dataSince the total sum of the X and Y components increases and decreases, the relative movement amount on the X coordinate axis and the Y coordinate axis changes while the cursor moves in the selection direction. Therefore, by adjusting the movement data table, the cursor speed coefficient k can be arbitrarily determined according to the continuous input operation time of the multidirectional input switch.
[0027]
  The coordinate input device according to claim 2 is characterized in that the transmission frame is output from the multidirectional input switch to the data generation unit by infrared rays.
[0028]
  The multidirectional input switch and the data generation unit are wirelessly connected by infrared rays. Therefore, the data generation unit can be accommodated in the display-side device, the multidirectional input switch can be accommodated in the remote control transmitter that controls the device, and the movement of the cursor can be controlled wirelessly.
[0029]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, an embodiment of a coordinate input device and a cursor movement control method according to the present invention will be described with reference to the drawings.
[0030]
  FIG. 1 is a block diagram showing the overall configuration of a personal computer 4 to which an infrared remote controller 2 and a light receiving unit 3 are connected. The coordinate input device 1 and cursor movement control method according to the present invention will be described while explaining the configuration of FIG. Is described in detail.
[0031]
  The coordinate input device 1 includes a multidirectional input switch 5 provided in the infrared remote controller 2 and a data generation unit 6 provided in the light receiving unit 3. Here, as the multi-directional input switch 5, a 16-directional switch shown in FIGS. 2A and 2B is used.
[0032]
  In the 16-direction switch 5, eight selection patterns 7a, 7b,... 7h are exposed at intervals of 45 degrees on the circumference of the bottom surface of the case, and the operation knob 5a is supported upright and swingably at the center. The operation knob 5a is disposed around the return spring 5b in a compressed state, and returns to a vertically upright state when no swinging operation is performed. Further, a ring-shaped movable contact portion 8 through which a switch signal flows from the switch terminal 8A is attached to the bottom surface side of the operation knob 5a so as to face the selection patterns 7a, 7b,.
[0033]
  As shown in FIGS. 2A and 2B, for example, when the operation knob 5a is tilted in the direction of 180 degrees (−X), the movable contact portion 8 comes into contact with the selection patterns 7d and 7e in the direction, A switch signal flows through the selection terminals 7D and 7E connected to the selection patterns 7d and 7e. Since the selection terminal through which the switch signal flows is 7D and 7E, the 16-direction switch 5 detects that the operation knob 5a is tilted in the direction of 180 degrees, and the direction data sets the direction of 180 degrees as the selection direction. Is generated.
[0034]
  Further, for example, when the operation knob 5a is inclined in a direction rotated clockwise by 22.5 degrees from 180 degrees (direction of 157.5 degrees), the movable contact portion 8 comes into contact with the selection pattern 7d and the selection terminal 7D. A switch signal flows from only. If the selection terminal through which the switch signal flows is only 7D, the 16-direction switch 5 selects the direction of 157.5 degrees on the assumption that the operation knob 5a is inclined in the direction of 157.5 degrees where the selection pattern 7d is exposed. Generate direction data for the direction.
[0035]
  In this way, the 16-direction switch 5 detects the tilt direction of the operation knob 5a from 16 directions at intervals of 22.5 degrees by inputting the switch signal from one or two selection terminals 7A, 7B,. Then, the direction data having the direction as the selection direction is generated.
[0036]
  A metal tact (MT) switch 20 in which a disc spring-like movable contact plate 20a is disposed on the fixed electrode 20b is provided below the operation knob 5a. The switch is operated by depressing the operation knob 5a in its axial direction. It is supposed to work. The MT switch 20 corresponds to a push button switch provided in the mouse, and generates switch data when there is a switch operation.
[0037]
  The 16-direction switch 5 assumes that the input operation continues as long as the switch signal is input from any of the selection terminals 7A, 7B,... 7H, that is, as long as the operation knob 5a is tilted. A transmission frame including switch data is generated at a cycle of 50 msec.
[0038]
  As shown in FIG. 3, the format of the transmission frame is composed of a 32-bit code between the header and the end. The 4-bit ID code is an ID code assigned to each infrared remote controller 2 so that the light receiving unit 3 does not operate with another infrared remote controller 2. The 4-bit device code assumes that the infrared remote controller 2 is used as another device such as a wireless keyboard, and when used as the coordinate input device 1, the device code is (7h).₁₆Identify with other devices.
[0039]
  The switch data indicating the operation state of the MT switch 20 is included in a part of the 8-bit flag, and the direction data indicating the selection direction by the operation dial 5a is represented by an 8-bit code following the flag.
[0040]
  Parity is an 8-bit code used for parity check when a transmission frame is received.
[0041]
  The transmission frame configured as described above is subjected to PPM (pulse position) modulation in the IR transmission unit 9 and then as an infrared signal having a carrier frequency of 455 KHz as long as the transmission frame is generated as shown in FIG. It is output to the light receiving unit 3 at a cycle of 50 msec.
[0042]
  When the input operation of the 16-direction switch 5 is stopped, that is, when the operation knob 5a is returned to the standing state, the input of switch signals from all the selection terminals 7A, 7B,. Can be detected. When the stop of the input operation is detected, the direction data code does not represent any selected direction (0h)₁₆3 frames are transmitted at a cycle of 50 msec.
[0043]
  As shown in FIG. 1, the light receiving unit 3 that receives an infrared signal includes an IR light receiving unit 10, a data generating unit 6, and a mouse interface unit 11 connected in series.
[0044]
  The IR light receiver 10 photoelectrically converts the above infrared signal and then demodulates it to obtain a transmission frame from the infrared signal. The data generation unit 6 refers to the movement data table 12 and the direction data table 13 connected to the data generation unit 6, and obtains cursor control data from the switch data and the direction data included in the transmission frame output from the IR light receiving unit 10. Generate.
[0045]
  Hereinafter, a method for generating the cursor control data in the data generation unit 6 will be described in detail.
[0046]
  When a transmission frame is input from the IR light receiving unit 10, the direction data code included in the transmission frame is first (0h).₁₆It is determined whether or not. (0h)₁₆In the case of a code indicating a selection direction other than, it is determined that the transmission frame is received while the 16-direction switch 5 is being input, and is generated continuously after the input operation is started. It is detected whether it is a transmitted frame.
[0047]
  Direction data is (0h)₁₆When the transmission frame is received three times in succession, this is a case where the input operation of the 16-way switch 5 is stopped, so that it is input first (0h).₁₆The transmission frame including the direction data other than is the first transmission frame generated after the input operation starts, and thereafter (0h)₁₆Every time a transmission frame including direction data other than is input, the continuous generation count c is counted up.
[0048]
  As long as the input operation is continued, the transmission frame is generated with a period of 50 msec and input to the data generation unit 6. For example, the number of continuous generations c of the transmission frame that is input when the input operation is continued for 200 msec. Will be 4 times.
[0049]
  After detecting the transmission frame continuous generation count c, it is extracted from the direction data table 13.Number of bit dataExtraction using the movement data table 12 of FIG. 4 showing the relationship with pNumber of bit dataFind p. If the number of continuous generations c is 4, extractNumber of bit datap is 4.
[0050]
  The direction data table 13 approximates unit movement positions in 16 directions that can be selected by the 16-direction switch 5 to X and Y components composed of integer values on orthogonal X and Y coordinate axes.4ofSigned bit dataThe basic pattern is formed by repeating the basic pattern in each direction for each direction.
[0051]
  The data of each bit is a value of “+1”, “0”, or “−1”. For example, in FIG. 2B, the unit in the right direction on the X coordinate axis or the upper direction on the Y coordinate axis The basic pattern in each direction is defined as “+1” for the component and “−1” for the unit component in the left direction or the downward direction.4 signed bit dataIt is represented by
[0052]
  Figure 5 shows this4 signed bit dataIs an explanatory diagram for explaining a method of obtaining a basic pattern in each direction, and orthogonal X and Y coordinate planes are divided in coordinate units of integer values along the X and Y coordinate axis directions. Basic pattern4 signed bit dataIn this X, Y coordinate plane, a circle with a radius of 4 is drawn around the origin (0, 0), and the intersection with a straight line drawn from the origin in 16 selectable directions is obtained. Since each intersection represents a unit movement position in 16 selectable directions, the X and Y coordinates are coordinate positions represented by integer values (hereinafter referred to as integer coordinate positions) and are closest to the intersection. The X and Y coordinates are X and Y components approximated by integer values. The basic pattern is4 each signed bit dataIs the approximate X and Y components.
[0053]
  For example, the X and Y coordinates of the integer coordinate position closest to the unit movement position in the direction of 22.5 degrees in the figure are (4, 2), and the basic pattern having the selection direction of 22.5 degrees is the X component. of4 signed bit dataSo that the sum ofSigned bit dataThe values of “+1”, “+1”, “+1”, “+1”, and the sum of the Y components are 2,Signed bit dataIs set to “0” “+1” “0” “+1”.
[0054]
  Similarly, for example, the X and Y coordinates of the integer coordinate position closest to the unit movement position in the 225 degree direction are (−3, −3), and the basic pattern has the X component of “−1”, “0”, “ −1 ”,“ −1 ”, and Y component as“ −1 ”,“ 0 ”,“ −1 ”,“ −1 ”.4 signed bit dataIt is said.
[0055]
  As shown in FIG. 6, the same process is performed for each of the 16 directions selectable by the 16-direction switch 5.4 signed bit dataAre obtained and expressed in bit positions b4 to b7 of the direction data table 13. Further, the basic pattern is repeatedly expressed at bit positions b0 to b3, and similarly, the basic pattern is repeatedly expressed at bit positions continuous from b7, and the direction data table 13 is obtained.
[0056]
  The data generation unit 6 uses the direction data table 13 to determine the direction data included in the transmission frame.Signed bit dataTo extract. ExtractNumber of bit dataAs described above, p is obtained by referring to the movement data table 12 for the number of consecutive generations c of transmission frames.
[0057]
  For example, if the operation knob 5a is tilted in the direction of 157.5 degrees and the input operation is continued, the direction data of the transmission frame first input to the data generation unit 6 after the input operation is 157.5 degrees. Is direction data, and the continuous generation count c is 1. Therefore, extractionNumber of bit datap becomes 4, and from the direction data table 13, the X component is “−1”, “−1”, “−1”, “−1”, and the Y component is in the bit position from b4 to b7 for 225 degrees. "0" "+1" "0" "+1"4 signed bit dataIs extracted.
[0058]
  Assuming that the input operation is continuously performed in the same direction, the number of continuous generations c of transmission frames input after 50 msec is two times, and the extraction is performed.Number of bit datap is 0. Therefore, the X and Y components are not extracted from the direction data table 13.
[0059]
  Further, assuming that the input operation continues in the same direction, the number of consecutive generations c of the next input transmission frame is 3Number of bit datap is 3. From the direction data table 13, the X component is “−1”, “−1”, “−1” from the bit position of b4 to b7 extracted last time for the direction data of 225 degrees, and further in the bit position of b1 to b3. , Y component is “0” “+1” “0”3 signed bit dataIs extracted.
[0060]
  As described above, when the data generation unit 6 extracts the X and Y components related to the selected direction every time a transmission frame is input, the X and Y components are extracted.Signed bit data(If the X component is “−1”, “−1”, “−1”, “−1”, the sum of the X components is −4, and the Y component is “0”, “+1”, “0”, “+1”) If there is, the sum of Y components + 2) is obtained, and the cursor control data in the format of FIG. 8 is generated from these sums. ExtractionNumber of bit dataWhen p is 0, each sum of X and Y components is 0. Each sum of the X and Y components represents the relative movement amount (x, y) of the cursor in the X and Y directions, respectively. As 8-bit relative movement data, data cursor control data X0 to X7, It is represented by the bits at positions Y0 to Y7.
[0061]
  The switch data included in the transmission frame represents the switch operation of the MT switch 20 corresponding to the mouse switch. Therefore, when generating the cursor control data, the switch data is displayed in the switch bit L indicating the mouse operation state. Include.
[0062]
  As shown in FIG. 1, the cursor control data is output to the mouse input port 14 of the personal computer 4 via the mass screen 11 at the same 50 msec cycle as the transmission frame input cycle. The display control circuit 15 of the personal computer 4 outputs a cursor movement control signal to the monitor output unit 16 based on the relative movement data of the cursor control data input from the mouse input port 14, and the cursor displayed on the display 17. Move. That is, the cursor moves on the display 17 using the total sum (x, y) of the X and Y components extracted from the direction data table 13 as the relative movement amount in the X and Y coordinate axis directions. Moves at a speed represented by the sum (x, y) of the X and Y components.
[0063]
  Thus, according to the present embodiment, each direction of the direction data table 13 isSigned bit dataIs expressed by X and Y components that approximate the direction,Signed bit dataThe relative movement amount (x, y) of the cursor, which is obtained by the sum of the values, is also moved substantially in the selection direction.
[0064]
  The absolute value of the relative movement amount (x, y) is obtained from the direction data table 13.Signed bit dataExtractNumber of bit dataIncrease or decrease by p. That is, extractNumber of bit datap is equivalent to the cursor speed coefficient k, and by arbitrarily determining the movement data table 12 in relation to the number c of continuous generations of transmission frames proportional to the input operation time of the 16-direction switch 5, The moving speed of the cursor can be easily changed according to the input operation time.
[0065]
  For example, when finely adjusting the display position of the cursor, it is necessary to incline the operation knob 5a of the 16-direction switch 5 in a direction in which it is desired to move instantaneously. The operation cannot be stopped. Therefore, in the movement data table 12 of FIG. 4, when the number of consecutive generations c is 2, the extraction bit number p is set to 0, and the movement of the cursor after the minute movement is stopped.
[0066]
  In addition, when the number of continuous generations c is 4 to 7, the extraction bit number p is set to 4 and the cursor is moved at a constant speed. Further, when the input operation is continued, the cursor is moved to a distant distance. It is assumed that there isNumber of bit datap is gradually increased to accelerate the cursor speed.
[0067]
  The present invention is not limited to the above embodiment, and various modifications can be made.
[0068]
  For example, the output cycle of the transmission frame output from the multidirectional input switch 5 is 50 msec, but is not limited to this cycle.
[0069]
  The output timing of the cursor control data to the personal computer 4 does not necessarily need to be synchronized with the output of the transmission frame. A buffer for storing the cursor control data is provided, and the cursor control data is output asynchronously in accordance with the cycle requested by the personal computer 4. May be.
[0070]
  Furthermore, although the said embodiment demonstrated the 16 direction switch 5 which rocks | fluctuates the operation knob 5a as an example of a multi-directional input switch and inputs a selection direction, it is not necessarily limited to what rocks the operation knob 5a, As long as one direction can be selectively input from at least a plurality of directions, a multidirectional input switch having another configuration may be used.
[0071]
  In the above-described embodiment, the cursor displayed on the display 17 of the personal computer 4 is moved and controlled. However, the cursor displayed on the display unit of the television receiver, the remote controller or the like is moved and controlled. Is also applicable.
[0072]
  Furthermore, although the multi-directional input switch and the data generation unit are provided in the infrared remote controller 2 and the light receiving unit 3, they may be provided in the same device or in a device provided with a display. May be.
[0073]
【The invention's effect】
  According to the present invention, the relative movement amount x in the X-coordinate axis direction and the relative movement amount y in the Y-coordinate axis direction of the cursor control data can be obtained directly at a ratio that substantially matches the selection direction, and the generation process is simplified.
[0074]
  In addition, the cursor movement speed coefficient k can be easily adjusted according to the input operation time simply by adjusting the contents of the movement data table.
[0075]
  In addition, according to the invention of claim 2, since the data generation unit can be accommodated in the display-side device, the configuration on the remote control transmitter side accommodating the multi-directional input switch becomes simple, small and lightweight. Can be
[0076]
  Further, since the cursor control data is not generated on the device side that performs the input operation, the transmission frame can be output at high speed.
[0077]
  Further, the cursor movement control can be operated by remote operation, and the operability is improved.
[Brief description of the drawings]
FIG. 1 is a block diagram showing the overall configuration of a personal computer 4 to which an infrared remote controller 2 and a light receiving unit 3 are connected.
FIG. 2 of 16-way switch 5
(A) is a longitudinal sectional view,
(B) is a top view which removes and shows the operation knob 5a.
FIG. 3 is an explanatory diagram showing a format of a transmission frame and a transmission cycle.
FIG. 4 is an explanatory diagram showing a movement data table 12;
[Figure 5]4 signed bit dataIt is explanatory drawing explaining the method to obtain the basic pattern of each direction which consists of.
FIG. 6 is an explanatory diagram showing a direction data table 13;
7 is a perspective view showing a conventional coordinate input device 100 using a multidirectional input switch 101. FIG.
FIG. 8 is an explanatory diagram showing a data format of cursor control data.
[Explanation of symbols]
      1 Coordinate input device
      5 16-way switch (multi-directional input switch)
      6 Data generator
      12 Movement data table
      13 direction data table
      17 Display
      c Number of consecutive transmission frame generations
      p extractionNumber of bit data
      x, y Sum of X and Y components

Claims (3)

A multi-directional input switch (5) for detecting an input operation for selecting one direction from among the multi-directions and outputting a transmission frame including direction data representing the selected direction at a predetermined period while detecting the input operation; ,
A data generation unit (6) that inputs a transmission frame and generates cursor control data for controlling movement of the cursor displayed on the display (17) from the number of times of continuous generation of transmission frames (c) and direction data included in the transmission frame. )
In the coordinate input device that outputs the cursor control data from the data generation unit (6) and controls the movement of the cursor in the selection direction,
The data generator (6)
A unit movement position to each selectable direction multidirectional input switch (5), X orthogonal respectively, consists integral value on the Y coordinate axis X, similar to the Y component, X approximating, each integer of the Y component The numerical value is represented by a basic pattern expressed by the sum of the same number of signed bit data by combining signed bit data consisting of any one of the values “+1”, “0”, and “−1”. A direction data table (13) in which a basic pattern of directions is continuously repeated;
A moving data table (12) representing the number of bit data (p) extracted from the direction data table (13) in relation to the number of times of continuous generation of transmission frames (c),
Every time a transmission frame is input,
Referring to the movement data table (12), the number of bit data (p) extracted from the direction data table (13) is obtained from the number of continuous generations of transmission frames (c),
Extracting the signed bit data in the selected direction from the direction data table (13), the number of bit data (p) obtained by referring to the movement data table (12),
The sum (x, y) for each of the X and Y components is obtained for the signed bit data of the number of extracted bit data (p),
A coordinate input device for generating cursor control data for moving the cursor on the display (17) relative to each other in the X and Y coordinate axes in the X and Y coordinate axis directions (x, y).   The coordinate input device according to claim 1, wherein the transmission frame is output from the multi-directional input switch (5) to the data generation unit (6) by infrared rays. Detecting an input operation for selecting one direction from among multiple directions, and generating a transmission frame including direction data representing the selected direction at a predetermined period while detecting an input,
In the cursor movement control method for moving and controlling the cursor displayed on the display (17) from the number of times of continuous generation of the transmission frame (c) and the direction data included in the transmission frame,
Every time a transmission frame is generated,
Refer to the movement table that represents the relationship between the number of continuous generations of transmission frames (c) and the number of extracted bit data (p),
The number of extracted bit data (p) is obtained from the number of continuous generations of transmission frames (c),
The unit movement position in each of the selectable multi-directional directions is approximated to X and Y components consisting of integer values on the orthogonal X and Y coordinate axes, respectively , and each integer value of the approximated X and Y components is set to “+1”. “0” and “−1” are combined with signed bit data and represented by a basic pattern represented by the sum of the same number of signed bit data, and the basic pattern in that direction is indicated for each direction. Refer to the repeated direction data table (13),
The selection direction signed bit data from the direction data table (13), with reference to the moving table bit data number obtained (p) extracted,
The sum (x, y) for each of the X and Y components is obtained for the signed bit data of the number of extracted bit data (p),
A cursor movement control method, characterized in that a cursor on a display (17) is moved relative to each other in the X and Y coordinate axes in the direction of X and Y components (x, y).

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