WO2011055514A1

WO2011055514A1 - Input device

Info

Publication number: WO2011055514A1
Application number: PCT/JP2010/006362
Authority: WO
Inventors: 井上　眞
Original assignee: パナソニック株式会社
Priority date: 2009-11-06
Filing date: 2010-10-28
Publication date: 2011-05-12

Abstract

Disclosed is an input device that is provided with a detection unit comprising a plurality of magnetic sensing elements arranged upward, downward, left and right atop a substrate; a movable operation unit placed atop the detection unit; a magnetic supply unit that is held by the operation unit and that supplies magnetism to the magnetic sensing elements below; and a control unit that is connected to the magnetic sensing elements and that calculates the degree of displacement of the operation unit from output signals of an adjacent pair of magnetic sensing elements; wherein if the output signal is output from a plurality of the magnetic sensing elements that are parallel to the direction of displacement of the magnetic supply unit, the degree of displacement of the operation unit is calculated from the most recent output signal.

Description

Input device

The present invention relates to a magnetic detection unit mainly used for operation of various electronic devices and an input device using the same.

In recent years, as various electronic devices such as mobile phones and personal computers have become highly functional and miniaturized, input devices used for these operations are required to be capable of reliable and diverse operations.

FIG. 12 is a cross-sectional view of a conventional input device. In FIG. 12, the operating body 1 is spherical and made of an insulating resin. The magnet 2 has a substantially disk shape and is made of ferrite or the like. A plurality of magnets 2 are embedded in the outer periphery of the operating body 1 at predetermined intervals.

The upper case 3 and the lower case 4 are made of a thin metal plate. The operating body 1 is rotatably accommodated between the upper case 3 and the lower case 4, and the upper portion of the operating body 1 protrudes from the opening hole on the upper surface of the upper case 3.

A plurality of wiring patterns (not shown) are formed on the upper and lower surfaces of the wiring board 5. On the upper surface of the wiring board 5, a plurality of (for example, four) magnetic detection elements 6 such as Hall elements are mounted in a lattice shape vertically and horizontally, and are arranged to face the operation body 1 with a predetermined gap.

A control unit 7 such as a microcomputer is formed on the upper surface of the wiring board 5. The four magnetic detection elements 6 are connected to the control unit 7 through a wiring pattern to constitute an input device.

The input device configured as described above is mounted on an operation unit (not shown) of an electronic device such as a mobile phone or a personal computer with the upper portion of the operation body 1 protruding. And the control part 7 is electrically connected to the electronic circuit (not shown) of an electronic device via a connector, a lead wire (not shown), etc.

Consider a state where a plurality of menus such as names and song titles, a cursor (not shown), and the like are displayed on a display unit (not shown) such as a liquid crystal display element of an electronic device in the above configuration.

When the upper part of the operation body 1 is rotated up and down and left and right with a finger, the plurality of magnets 2 embedded in the outer periphery of the operation body 1 also rotate. For example, when rotating to the left, the magnet 2 A first approaches the magnetic detection element 6, and then the magnet 2 B approaches the magnetic detection element 6. And the magnetism detection element 6 detects the magnetism of the several magnet 2 which approaches and leaves this alternation.

The control unit 7 outputs a predetermined pulse signal to the electronic circuit of the device. Then, the electronic circuit of the electronic device detects the rotation direction and the rotation angle of the operating body 1 from this pulse signal. As a result, the cursor on the menu displayed on the display unit of the device is moved to the left, for example.

The same applies to the case where the operating body 1 is rotated in the right direction, the up-down direction, or an oblique direction intermediate to these, that is, a pulse signal is output from the control unit 7 and the electronic circuit is rotated in the rotating direction of the operating body 1. The rotation angle is detected, and the cursor or the like moves in the right direction, the up-down direction, or the diagonal direction.

As described above, by rotating the operating tool 1 in a predetermined direction while looking at the display unit of the electronic device, the cursor displayed on the display unit is moved in the predetermined direction, and a menu can be selected.

For example, Patent Document 1 is known as prior art document information related to the invention of this application.

However, the conventional input device can detect only a rough rotation angle. Further, when the number of the magnetic detection elements 6 is increased, in order to detect magnetism from a plurality of adjacent magnetic detection elements 6, an overlapping pulse signal is output to the electronic device side. As a result, the detection accuracy is lowered.

JP 2004-005091 A

The present invention provides an input device capable of detecting a precise movement amount without erroneous detection.

An input device according to the present invention includes a detection unit in which a plurality of magnetic detection elements are arranged vertically and horizontally on a substrate, a movable operation body arranged on the detection unit, and held by the operation body. A magnetic supply unit that supplies magnetism to the lower magnetic detection element, and a control unit that is connected to the magnetic detection element and calculates the amount of movement of the operating body from the output signals of a pair of adjacent magnetic detection elements. With such a configuration, when output signals are output from a plurality of magnetic detection elements in parallel with the moving direction of the magnetic supply unit, the amount of error can be calculated by calculating the movement amount of the operating body from the earliest output signal. A small amount of movement can be detected.

Also, by canceling all other output signals except the earliest, it is possible to detect a movement amount with less error for more operations.

FIG. 1 is a cross-sectional view of an input device according to Embodiment 1 of the present invention. FIG. 2 is an exploded perspective view of the input device according to Embodiment 1 of the present invention. FIG. 3 is a block circuit diagram of the magnetic detection unit of the input device according to Embodiment 1 of the present invention. FIG. 4A is a plan view for explaining an example of the relationship between the arrangement of the magnetic detection elements and the protrusions in the input device according to Embodiment 1 of the present invention. FIG. 4B is a plan view for explaining an example of the relationship between the arrangement of the magnetic detection elements and the protrusions in the input device according to Embodiment 1 of the present invention. FIG. 5 is a schematic diagram for explaining the arrangement of the operating body and the magnetic detection unit in the input device according to Embodiment 1 of the present invention. FIG. 6A is a plan view for explaining an example of the relationship between the arrangement of the magnetic detection elements and the protrusions in the input device according to Embodiment 1 of the present invention. FIG. 6B is a plan view for explaining an example of the relationship between the arrangement of the magnetic detection elements and the protrusions in the input device according to Embodiment 1 of the present invention. FIG. 6C is a plan view for explaining an example of the relationship between the arrangement of the magnetic detection elements and the protrusions in the input device according to Embodiment 1 of the present invention. FIG. 7A is a waveform diagram showing an example of a voltage signal output at the position of FIG. 6A. FIG. 7B is a waveform diagram showing an example of a voltage signal output at the position of FIG. 6B. FIG. 7C is a waveform diagram showing an example of a voltage signal output at the position of FIG. 6C. FIG. 8A is a waveform diagram for explaining an example of a voltage signal output calculation method of the input device according to Embodiment 1 of the present invention. FIG. 8B is a waveform diagram for explaining an example of a calculation method of the voltage signal output of the input device according to Embodiment 1 of the present invention. FIG. 8C is a waveform diagram for explaining an example of a calculation method of the voltage signal output of the input device according to Embodiment 1 of the present invention. FIG. 9 is a schematic diagram for explaining a calculation method of the voltage signal output of the input device according to the first embodiment of the present invention. FIG. 10A is a schematic diagram for explaining a calculation method of the voltage signal output of the input device according to the first embodiment of the present invention. FIG. 10B is a schematic diagram for explaining a calculation method of the voltage signal output of the input device according to the first embodiment of the present invention. FIG. 10C is a schematic diagram for explaining a calculation method of the voltage signal output of the input device according to the first embodiment of the present invention. FIG. 11 is a flowchart for explaining a calculation method of the voltage signal output of the input device according to the first embodiment of the present invention. FIG. 12 is a cross-sectional view of a conventional input device.

(Embodiment 1)
Hereinafter, Embodiment 1 of the present invention will be described in order with reference to FIGS.

FIG. 1 is a cross-sectional view of an input device according to Embodiment 1 of the present invention. FIG. 2 is an exploded perspective view of the input device according to Embodiment 1 of the present invention. 1 and 2, the operation body 11 is spherical and made of an insulating resin such as ABS, polycarbonate, or urethane. A magnetic supply unit 12 made of a magnetic material such as permalloy, iron, or Ni—Fe alloy is embedded in the operation body 11. Magnetism from the magnet 20 provided outside passes through the magnetic supply unit 12 and supplies magnetism to the magnetic detection unit 21 disposed below the operation body 11.

The magnetic supply unit 12 includes a substantially spherical core portion 13 and a plurality of (for example, 24) cylindrical projection portions 14 each having a plurality of radial protrusions projecting radially from the core portion 13 toward the outer periphery at a predetermined interval. It is configured.

It should be noted that the external magnet 20 may be eliminated and the magnetic supply unit 12 may be a magnet.

The upper case 15 and the lower case 16 are made of a thin metal plate such as steel. The operating body 11 is rotatably accommodated between the upper case 15 and the lower case 16, and the upper portion of the operating body 11 protrudes from an opening hole provided on the upper surface of the upper case 15.

The cover 17 is substantially plate-shaped and made of rubber or elastomer. The oscillator 18 is made of an insulating resin such as polybutylene terephthalate or polystyrene. An upper case 15 and a lower case 16 that house the operating body 11 are placed on the upper surface of the rocking body 18 via a cover 17.

A plurality of wiring patterns (not shown) are formed on the upper and lower surfaces of the film-like flexible substrate 19 using carbon, silver, copper foil, or the like. Further, on the upper surface of the flexible substrate 19 provided below the operation body 11, a magnet 20 made of ferrite, Nd—Fe—B alloy, etc. in a substantially cylindrical shape has an N pole upward and an S pole downward. It is placed in the direction.

A magnetic detection unit 21 for detecting magnetic flux is mounted on the upper surface of the flexible substrate 19 on the inner peripheral side of the magnet 20. The magnetic detection unit 21 is disposed opposite to the operation body 11 with a predetermined gap. A substantially U-shaped cutout 19 A is formed in the flexible substrate 19 around the magnetic detection unit 21.

The switch contact 22 made of a push switch or the like is mounted on the right side of the upper surface of the flexible board 19 and is disposed below the operation body 11. Further, the lower surface of the pressing portion 18A at the right end of the rocking body 18 is in contact with the upper surface of the push button portion 22A protruding upward.

The frame body 23 is made of a thin metal plate such as steel or copper alloy. The frame body 23 is fixed to the upper case 15, and the operating body 11, the swinging body 18 and the like housed in the lower case 16 are held at predetermined positions. Similarly to the flexible substrate 19 placed on the upper surface of the frame body 23, a substantially U-shaped cutout 23 A is formed in the frame body 23 around the magnetic detection unit 21. Is elastically in contact with the lower surface of the lower case 16.

The lower surface of the fulcrum portion 18B provided at the left end of the oscillating body 18 is in contact with the upper surface of the wiring board 24 so as to be able to oscillate.

The control unit 25 configured with a microcomputer or the like is mounted on the upper surface of the flexible substrate 19. And the magnetic detection unit 21 and the switch contact 22 are connected to this control part 25 via a wiring pattern, and the input device is comprised.

FIG. 3 is a block circuit diagram of the magnetic detection unit of the input device according to Embodiment 1 of the present invention. In FIG. 3, the magnetic detection element 26 is made of a Hall element or the like that detects magnetism in the vertical direction or horizontal direction. The detection unit 27 is formed by arranging nine or more, for example, sixteen magnetic detection elements 26 in FIG.

A plurality of magnetic detection elements 26 are connected to an amplification unit 28 formed of FET or the like. Further, these are covered with an insulating resin such as epoxy, and are integrally molded in a resin mold to constitute the magnetic detection unit 21.

4A and 4B are plan views for explaining an example of the relationship between the arrangement of the magnetic detection elements and the protrusions in the input device according to Embodiment 1 of the present invention. In FIG. 4A and FIG. 4B, the interval between the 16 magnetic detection elements 26 of the magnetic detection unit 21 arranged to face the operation body 11 and the 24 protrusions 14 of the magnetic supply unit 12 embedded in the operation body 11. Think about the interval.

As shown in FIG. 4A, the interval is 16 when the four protrusions 14 face each other or when the three protrusions 14 face each other as shown in FIG. 4B. Any one of the magnetic detection elements 26 is provided so as to detect the magnetism of each protrusion 14. That is, when the operating body 11 is rotated in any direction, up, down, left, or right, the four or three protrusions 14 that protrude downward are always provided to the 16 magnetic detection elements 26 of the magnetic detection unit 21. It is formed at an interval so as to face either one with a predetermined gap.

The input device configured as described above is mounted on an operation unit (not shown) of an electronic device such as a mobile phone or a personal computer with the upper portion of the operation body 11 protruding. And the control part 25 is electrically connected to the electronic circuit (not shown) of an electronic device via a connector, a lead wire (not shown), etc.

In the above configuration, consider a state in which a plurality of menus such as names and song titles, a cursor (not shown), and the like are displayed on a display unit (not shown) such as a liquid crystal display element of an electronic device.

FIG. 5 is a schematic diagram for explaining the arrangement of the operating body and the magnetic detection unit in the input device according to Embodiment 1 of the present invention. 6A to 6C are plan views for explaining an example of the relationship between the arrangement of the magnetic detection elements and the protrusions in the input device according to Embodiment 1 of the present invention. 7A to 7C are waveform diagrams showing examples of voltage signal outputs at the positions shown in FIGS. 6A to 6C. 8A to 8C are waveform diagrams for explaining an example of a voltage signal output calculation method of the input device according to Embodiment 1 of the present invention.

5 to 8C, when the upper part of the operation body 11 is rotated up and down and left and right with a finger, the magnetic supply unit 12 embedded in the operation body 11 also rotates. For example, as shown in the partial cross-sectional view of FIG. 5 and the partial plan view of FIG. 6A, when the operating body 11 is rotated leftward, the protrusion 14 A of the magnetic supply unit 12 is magnetic at the left end of the magnetic detection unit 21. It approaches the detection element 26A. Then, the magnetism of the substantially cylindrical magnet 20 arranged on the outer periphery of the magnetic detection unit 21 is from the protrusion 14B closest to the magnet 20 through the magnetic supply path of the core 13 and the protrusion 14A. It is supplied to the detection element 26A. The magnetic detection element 26A detects the supplied magnetism and outputs a voltage signal.

When the operating body 11 is rotated to the left, the magnetic flux density detected by the magnetic detection element 26A becomes the largest when the protrusion 14A comes almost directly above. Thereafter, the magnetism to be detected becomes smaller as the protrusion 14A moves to the right. Therefore, a voltage signal LA as shown in the waveform diagram of FIG. 7A is output from the magnetic detection element 26A.

If the operating body 11 continues to rotate leftward as it is, the protrusion 14A approaches the magnetic detection element 26B. As shown in FIG. 6B, when the protrusion 14A reaches an intermediate movement amount between the

magnetic detection elements

26A and 26B, the magnetism from the protrusion 14A is detected from both the

magnetic detection elements

26A and 26B. .

Further, when the operating body 11 continues to rotate leftward, as shown in FIG. 6C, the

magnetic detection elements

26B and 26C (a pair of adjacent magnetic detection elements) detect the magnetism from the protrusion 14A. The magnetic detection element 26B outputs a voltage signal LB as shown in FIG. 7B, and the magnetic detection element 26C outputs a voltage signal LC shown in FIG. 7C.

In response to the voltage signals LA to LC from the magnetic detection elements 26A to 26C arranged at equal intervals, pulse signals NA to NC having phase differences as shown in the waveform diagrams of FIGS. 25 to the electronic circuit of the device. Then, the movement amount of the protrusion 14A is detected based on the pulse signal of the magnetic detection element pair composed of two predetermined magnetic detection elements and the phase difference thereof.

When the pulse signal when the protrusion 14A rotates from FIG. 6A to FIG. 6B changes through the phase from FIG. 8A to FIG. 8B, the movement amount of the protrusion 14A can be determined. Here, the value is assumed to be a positive change “+1”, and the integrated value is used as an output of the movement amount of the cursor of this configuration. 8A and 8B are set to a negative change “−1”.

As described above, the movement amounts of the plurality of protrusions of the operating body 11 are detected, and the cursor on the menu displayed on the display unit of the device is moved, for example, in the left direction by the movement amount.

Next, a method for calculating the voltage signal output in the input device according to Embodiment 1 of the present invention will be described.

FIGS. 9 to 10C are schematic diagrams for explaining a calculation method of the voltage signal output of the input device according to Embodiment 1 of the present invention. In FIG. 9 to FIG. 10C, description will be made by defining eight magnetic detection element pairs in the X direction with respect to 16 magnetic detection elements. In order to detect a two-dimensional (planar) movement amount, the Y-direction is actually configured in the same manner, but the description is simplified because of the same principle.

First, the method for calculating the amount of movement will be described. In FIG. 9, eight pairs (26-a1) to (26-a4) and (26-b1) to (26-b4) are defined as magnetic detection element pairs for detecting the phase difference in the X direction. After the operating body 11 rotates to the right in FIG. 9 and crosses the broken line, the phase difference between the output signals output from the two magnetic detection elements 26 in the magnetic detection element pair (26-a2) is calculated and moved. Let the quantity signal be +1 count. Further, as the operating body 11 rotates, the same calculation is performed for the next magnetic detection element pair (26-b2), and +1 is counted. The total movement amount of the operating body 11 is obtained by integrating the outputs (movement amount signals) from the plurality of magnetic detection element pairs. In this case, +2 is counted.

The above example is a case where a movement amount signal is output only from one row of the magnetic detection element pairs (26-a2) and (26-b2) with respect to the movement direction of the protrusion 14A accompanying the rotation of the operating body 11. In addition, a movement amount signal may be output from a plurality of magnetic detection element pairs depending on the arrangement of the protrusion 14A and these magnetic detection element pairs.

In FIG. 10A, a movement amount signal is output from two magnetic detection element pairs (26-a1) and (26-a2) arranged in parallel to the movement direction of the protrusion 14A as indicated by the arrow 8. Indicates. In FIG. 10B, a movement amount signal is output from the magnetic detection element pairs (26-a1) and (26-a4) at both ends across the magnetic detection element pairs (26-a2) and (26-a3). Indicates.

Conventionally, since the movement amount signal output from each magnetic detection element pair is integrated to obtain the movement amount of the operating body 11, in actuality, an excessive movement amount twice that of the movement of only one magnetic detection element pair is counted. It was. However, in the input device according to the present invention, when a movement amount signal is output from a plurality of magnetic detection element pairs as described above, the earliest output signal, that is, the magnetic detection element pair ( The output of 26-a1) is prioritized and counted as the movement amount of the operating tool 11. It should be noted that signals other than the prioritized output, ie, the magnetic detection element pair (26-a2) in FIG. 10A and (26-a4) in FIG. 10B are canceled after a predetermined time has passed over the broken line.

In the above example, the group of magnetic detection element pairs has been described as the Xa group consisting of (26-a1), (26-a2), (26-a3), and (26-a4). The same applies to the adjacent Xb group, that is, (26-b1), (26-b2), (26-b3), and (26-b4).

Further, when the protrusion 14A moves obliquely with respect to the arrangement of the magnetic detection element pair in FIG. 10A, a magnetic detection element parallel to the movement direction of the protrusion 14A may be used as the magnetic detection element pair. For example, when the protrusion 14A moves at an angle of 45 degrees as shown by the arrow 9 in FIG. 10A, the left side of (26-a3) parallel to the arrow 9 as the magnetic detection element pair, and (26-a2) The right magnetic detection element 26 may be considered as a magnetic detection element pair.

When the operation as shown in FIG. 10C is performed, the operation is actually performed more than the movement amount of the width of Xa. In this case, if the first detection is prioritized and all subsequent detections are canceled, the detection is smaller than the actual movement amount. Therefore, when detecting three consecutive times in the same region, the movement amount is detected without canceling the third time.

FIG. 11 is a flowchart for explaining a calculation method of the voltage signal output of the input device according to the first embodiment of the present invention. In FIG. 11, the present description is limited to the X direction, but corresponding to detection of a two-dimensional (planar) movement amount is performed in the Y direction in the same manner.

Here, as shown in FIG. 10C, the protrusion 14A of the operating body 11 passes between the magnetic detection element pairs (26-a1) and (26-a2), and the protrusion 14B is connected to the magnetic detection element pair (26 -A4) A description will be given assuming that the vehicle passes above.

First, the cancellation record is cleared as the movement amount addition + 1 in the route from step S1 to steps S2, S3, and S8. The magnetic detection element pairs (26-a1), (26-a2), (26-a3), and (26-a4) at this time are collectively referred to as an Xa column.

Next, when the movement amount displacement of the magnetic detection element pair (26-a2) occurs, there is no previous cancel record in the path from step S1 to steps S2, S3, and S4. Therefore, only the cancel recording is performed through step S7, and the movement amount is not added even if there is a movement amount displacement.

Next, as shown in FIG. 10C, when the protrusion 14B passes the magnetic detection element pair (26-a4), the previous cancellation has occurred in the path from step S1 to steps S2, S3, and S4. Therefore, the movement amount addition + 1 and the cancel record clear are executed.

Note that the same control can be realized even if the judgment order is changed.

Also, the rotation in the diagonal direction can be realized by combining the movement amount signals in the X and Y directions.

When the upper portion of the operating body 11 is pressed while the cursor or the like is positioned on a desired menu, the swinging body 18 swings with the fulcrum portion 18B contacting the upper surface of the wiring board 24 as a fulcrum. Then, the lower surface of the rightmost pressing portion 18A presses the push button portion 22A, and the switch contact 22 is electrically connected / disconnected. As a result, the control unit 25 detects this electrical contact / separation, and a predetermined signal is output to the electronic circuit, for example, confirmation of a menu or display of the next menu is performed.

In this way, by rotating the operating tool 11 in a predetermined direction while looking at the display unit of the device, the cursor displayed on the display unit is moved in the predetermined direction to select a menu. Then, by pressing the operating body 11, the menu can be confirmed, the next menu can be displayed, and the like.

As described above, 9 or more (for example, 16) magnetic detection elements 26 are arranged vertically and horizontally to form the detection unit 27 of the magnetic detection unit 21. Then, the operating body 11 in which the magnetic supply unit 12 is embedded in the magnetic detection unit 21 is arranged opposite to each other with a predetermined gap therebetween to constitute an input device. Here, a magnetic detection element pair (for example,

magnetic detection elements

26A and 26B,

magnetic detection elements

26C and 26D) of 16 magnetic detection elements 26 arranged vertically and horizontally is considered. Then, the rotation direction and the movement amount of the operating body 11 are detected from the pulse signals having a phase difference between the adjacent magnetic detection elements 26 constituting the magnetic detection element pair. By such an operation, it is possible to detect a precise rotation angle with little error.

In the above description, a configuration in which 16 magnetic detection elements 26 are arranged at equal intervals in the vertical and horizontal directions has been described. However, even if the nine magnetic detection elements 26 are arranged at equal intervals, a pulse signal having a phase difference can be obtained by a pair of adjacent magnetic detection elements 26. In this case, it is possible to detect the movement amount more precisely than in the case where the movement amount is detected by the four magnetic detection elements. Further, 25 magnetic detection elements 26 or a larger number of magnetic detection elements 26 may be arranged at equal intervals in the vertical and horizontal directions and connected to the amplifying unit 28 so as to be integrally formed within a predetermined dimension. Good. In this case, it is possible to detect a precise movement amount without error.

In the above description, the configuration in which the rotation direction and the movement amount of the spherical operation body 11 are detected by the magnetic detection unit 21 in which nine or more magnetic detection elements 26 are arranged has been described. However, rotation of a columnar operation body with a magnetic body or magnet embedded on the outer periphery, movement of a rectangular operation body with a magnetic body or magnet embedded on the lower surface, up and down, left or right, or arcuate operation body The present invention can be implemented even with a configuration in which the magnetic detection unit 21 detects the movement direction and amount of movement of variously shaped operating bodies such as swinging.

The input device according to the present invention has an advantageous effect that it can realize a device capable of detecting a precise movement amount without erroneous detection, and is mainly useful for operation of various electronic devices.

DESCRIPTION OF SYMBOLS 11 Operation body 12 Magnetic supply part 13

Core part

14,14A Protrusion part 15 Upper case 16 Lower case 17 Cover 18 Oscillator

18A Press part

18B Support point 19

Flexible substrate

19A, 23A Notch part 20 Magnet 21 Magnetic detection unit 22 Switch contact 22A Push button part 23 Frame 24 Wiring board 25

Control part

26, 26A, 26B, 26C, 26D, 26E, 26F Magnetic detection element 27 Detection part 28 Amplification part

Claims

A detection unit comprising a plurality of magnetic detection elements arranged vertically and horizontally on a substrate;
A movable operation body arranged on the detection unit;
A magnetic supply unit that is held by the operating body and supplies magnetism to the magnetic detection element below;
A controller that is connected to the magnetic detection element and calculates a movement amount of the operating body from output signals of a pair of adjacent magnetic detection elements;
When the output signal is output from a plurality of the magnetic detection elements in parallel with the moving direction of the magnetic supply unit, the input device calculates an amount of movement of the operating body from the earliest output signal.
The input device according to claim 1, wherein all other output signals except the earliest are canceled.