JP2004296129A - Electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic device for easily recognizing a position of a pressuring switch means during an operation of a rotary disc of a disc jog dial and improving the operability. <P>SOLUTION: The device comprises a housing 1; a rotary disc 23 horizontally and rotatably disposed on the housing 1; a rotary detecting means for detecting the rotation of the disc 23; pressuring switches 26a, 26b, 26c, 26d disposed under the proximity of the outer periphery of the disc 23; and identifying portions 27a, 27b, 27c, 27d with different heights from that of the surface of the disc 23 are disposed at the positions corresponding to the pressuring switches 26a-26d on the surface of the housing 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electronic apparatus suitable for application to, for example, a mobile phone or a game machine equipped with a rotary operation unit having a horizontal rotation detection function and a push switch function.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, an operation switch provided with push switch means (hereinafter, referred to as a switch) in four directions, up, down, left, and right, in the vicinity of an outer periphery of an operation panel has been used for a mobile phone. Pressing the target switch of the operation switch as appropriate to move the cursor on the display screen corresponding to the operation of the operation switch up, down, left and right, or to input a command such as scrolling data displayed on the screen. Can be. In addition, on the operation panel surface of the operation switches, for example, a print for recognizing switch positions of up, down, left, and right is provided, and there is a switch which is designed so that a target switch can be pressed reliably (for example, Reference 1).
[0003]
Apart from an operation switch for giving such a direction instruction, in recent years, a so-called jog dial has been developed as an operation means which has both a rotation detection function and a pressure detection function and can be mounted on an electronic device such as a mobile phone. . FIG. 7 shows an example of a jog dial mounted on an electronic device and its peripheral portion. FIG. 7A is a top view, and FIG. 7B is a sectional view taken along line WW of FIG. 7A. In the example of FIG. 7, it is shown as a jog dial that rotates in the horizontal direction. Here, this jog dial is called a disk jog dial.
In FIG. 7A, reference numeral 103 denotes a rotary disk of a disc jog dial arranged rotatably in the horizontal direction, and 105, a switch provided on an equipment housing below the rotary disk rotation center, and 106a, 106b, 106c, 106d (hereinafter, referred to as switches). Reference numerals 106a to 106d) denote broken switches, respectively, provided at upper, lower, left, and right positions below the vicinity of the outer periphery of the rotating disk.
[0005]
In FIG. 7B, reference numeral 100 denotes a cross section of the equipment housing on which the disc jog dial is installed, and cross sections of the rotary disk 103 and the switches 105, 106a, and 106c on the cutting line WW are indicated by oblique lines. The switch 105 is arranged at the bottom of the rotating shaft housing hole 101, and the switches 106a to 106d are respectively arranged at predetermined positions at the bottom of the rotating disk housing hole 102. The rotating shaft 104 also serving as a vertical pressing portion of the switch 105 is rotated by the rotating shaft. The turntable 103 is stored in the turntable storage hole 102 while being stored in the storage unit 101.
[0006]
By the rotation operation of the user, the rotating shaft 104 of the rotating disk 103 is rotated in the horizontal direction with the switch 105 as a fulcrum, and when a desired position of the rotating disk 103 is pressed, the back surface of the rotating disk 103 and the vicinity of the outer periphery of the rotating disk are rotated. The switch 105 is configured such that any one of the switches 105 and 106a to 106d abuts to turn on a desired switch.
[0007]
FIG. 8 shows an example of a rotation detector for detecting the rotation of the rotary disc 103 of the disc jog dial. Numeral 203 denotes a rotary disk, and dotted line 204 denotes a position of a magnet arranged on a rear surface of the rotary disk 203, for example, at a position where one circumference is divided into 12 equal parts. Reference numeral 200 denotes, for example, a housing of an electronic device, and reference numerals 201 and 202 denote magnetic sensors including a Hall element and the like.
[0008]
In such a configuration, when the turntable 103 is rotated, the magnet arranged on the back of the turntable rotates, and two sensors 201 and 202 provided on the device housing detect a change in the magnetic field. By monitoring the detection phase difference and the detection order of the sensors 201 and 202, information on the rotation amount and the rotation direction can be obtained, and this information is supplied to the control unit of the electronic device main body and displayed on the screen. Predetermined control such as moving the cursor is performed.
[0009]
[Patent Document 1]
JP 2002-149301 A
[Problems to be solved by the invention]
However, when there are a plurality of switches below the turntable, such as a disc jog dial having the configuration shown in FIG. 7, the most accurate operation feeling can be obtained by pressing directly above the target switch. There is a fear that the operation may be incorrect. For example, as shown in FIG. 7A, when the surface of the turntable corresponding to the intermediate portion between the switches 105 and 106a is pressed or the surface of the turntable corresponding to the intermediate portion between the switches 106b and 106c is pressed, an unintended switch reacts. Erroneous operation such as no response from either switch.
[0011]
In order to perform an accurate operation, it was necessary to confirm the place to be pressed before the operation was performed. Therefore, it took a long time to perform the operation, and a print indicating the switch position was provided on the surface of the operation unit described in Patent Document 1. When the method is applied, there has been a problem that an operation in a situation where it is difficult to visually recognize is likely to cause an erroneous operation. Furthermore, since the rotating plate 13 is rotated, the printed switch position is deviated from the actual positional relationship between the left and right and up and down positions of the switches installed below the rotating plate 103, so that the printing does not make sense. There was a problem that occurred.
[0012]
In view of such a point, an object of the present invention is to provide an electronic device which can easily recognize the position of the press switch means while operating the turntable of the rotary operation means and can improve operability. .
[0013]
[Means for Solving the Problems]
The electronic device of the present invention includes a housing, a turntable disposed rotatably in the housing in a horizontal direction, rotation detection means for detecting rotation of the turntable, and a lower portion near the outer periphery of the turntable. And a discriminating portion having a height different from the surface of the rotating disk at a position corresponding to the pressing switch on the surface of the casing around the rotating disk.
[0014]
According to the present invention, an identification section having a height different from the surface of the rotating disk is provided at a position corresponding to the pressing switch means on the surface of the housing around the rotating disk. Even so, the position of the pressing switch means provided below the turntable can be easily grasped by touch.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example of an embodiment of the electronic apparatus of the present invention applied to a portable so-called mobile phone will be described with reference to FIGS.
[0016]
This embodiment is an example applied to a so-called foldable mobile phone, and FIG. 1 is an external perspective view of the foldable mobile phone of the present embodiment in which a lower housing and an upper housing are fully opened.
[0017]
In FIG. 1, reference numeral 1 denotes a lower housing, and 11 denotes an upper housing. The lower housing 1 and the upper housing 11 are openably and closably connected by a hinge portion 10, and the inside of the lower housing 1 ( The operation button group 2, the so-called disc jog dial turntable 23 having both the horizontal rotation detection function and the push switch function, and the microphone 4 are provided on the surface that is in contact with the upper housing 11 in the closed state.
[0018]
Inside the upper housing 11, a display screen (hereinafter, referred to as a main screen) 12 composed of, for example, an LCD (Liquid Crystal Display), which is mainly used when the foldable mobile phone is opened, and a speaker 13 are provided. Have been. Further, an image pickup device such as a CCD (Charge Coupled Device) type or a CMOS (Complementary Metal-Oxide Semiconductor) type is stored in an intermediate portion of the hinge portion 10 and independent of opening and closing operations of the lower housing 1 and the upper housing 11. A camera 20 is provided that can be rotated approximately 180 °. Reference numeral 21 denotes a lens of the camera 20.
[0019]
FIG. 2 is an external perspective view of the foldable mobile phone according to the present embodiment in which a lower housing and an upper housing are half-opened. In the figure, a display screen (hereinafter, referred to as a sub-screen) 14 mainly composed of, for example, an LCD and a shutter button 15 of a camera 20 are disposed outside the upper housing 11 when the foldable mobile phone is closed. Have been. Although not shown, an antenna for transmitting and receiving a radio signal is provided.
[0020]
FIG. 3 is a block diagram illustrating an example of a circuit configuration of the mobile phone according to the present embodiment.
[0021]
110 is a control unit for controlling the entire system, 107 is a general-purpose RAM (Random Access Memory) for storing various information and providing a work area necessary for the control unit 110 to perform control, and 108 is for various control programs and the like. The stored ROM (Read Only Memory). The control unit 110 includes a CPU (Central Processing Unit) 111 for calculation and control, and is connected to an external interface 112 for connecting to a RAM 107, a ROM 108, and various peripheral devices via a system bus (not shown). When the user operates 2 or 23, the operation output is supplied to the CPU 111 via the external interface 112 and the system bus, and the CPU 111 performs predetermined processing according to the program in the ROM 108.
[0022]
An antenna 101 transmits and receives a radio signal. The antenna 101 is connected to an antenna duplexer 102 that shares a reception signal and a transmission signal with one antenna. A transmission signal from a control unit 110 is transmitted through a modulator 103 and an antenna duplexer 102. The received signal transmitted from the antenna 101 and received from the antenna 101 is supplied to the control unit 110 via the antenna duplexer 102 and the demodulator 104.
[0023]
When a telephone call or e-mail from the base station is received by the demodulator 104 via the antenna 101, a received signal is supplied to the control unit 110, and the control unit 110 uses the voice from the speaker 13 to call the telephone or e-mail. The reception is notified to the user, the notification is performed by blinking display of an LED 105 provided on the back of the operation button group 2, and the vibration is notified by the vibrator 106. At this time, the control unit 110 displays the telephone number of the other party and the address of the e-mail sender on the screen of the display device 12 or 14 via a display controller (not shown).
[0024]
When the user answers the call in response to the call, the voice signal of the other party is received by the demodulator 104 via the antenna 101, supplied to the speaker 13 via the control unit 110, and the user's own voice signal from the microphone 4. The audio signal is supplied from the control unit 110 to the antenna 101 via the modulator 103 and transmitted to the base station. Thus, the call with the other party is performed. When the received e-mail is opened, the contents of the e-mail are displayed on the screen of the display device 12 or 14.
[0025]
The camera 20 captures an image of the subject at a desired angle of view setting through the lens 21, displays the captured image on the display device 12 or 14 via the control unit 110, and displays the displayed image on the operation button group 2 or the like. By pressing a provided shutter button, a desired still image or moving image can be stored in an internal non-volatile memory (not shown) or a removable recording medium.
[0026]
Next, the disc jog dial mounted on the mobile phone of the present embodiment and its peripheral shape will be described in detail. FIG. 4 shows the disc jog dial of this example and its peripheral portion, FIG. 4A is a top view, and FIG. 4B is a sectional view taken along line XX of FIG. 4A.
[0027]
In FIG. 4A, reference numeral 23 denotes a rotary disk of a disk jog dial arranged rotatably in the horizontal direction, and reference numeral 23a denotes a recess provided at the rotary disk rotation center on the surface of the rotary disk 23. Reference numerals 26a, 26b, 26c, 26d (hereinafter referred to as 26a to 26d) denote switches provided at the upper, lower, left, and right positions below the vicinity of the outer periphery of the turntable, respectively, by broken lines. Also, 27a, 27b, 27c, 27d (hereinafter, referred to as 27a to 27d) are placed on the equipment housing (lower housing) around the turntable 23, and up, down, left, and right below the periphery of the turntable 23 described later. A projection provided as an identification unit for recognizing the position of a pressing switch means (hereinafter, referred to as a switch) provided at a position, and is disposed on a radial extension line connecting the rotation center of the turntable 23 and each switch. ing.
[0028]
In FIG. 4B, reference numeral 1 denotes an equipment housing (lower housing) on which the disc jog dial is installed. The cross section of the rotary disk 23 and the switches 25, 26a, and 26c on the cutting line XX is indicated by oblique lines. I have. The switches 26a and 26c are a right switch and a left switch, respectively. As shown in FIG. 4A, in this example, the switches are installed in four directions of up, down, left, and right. The switch 25 is arranged at the bottom of the rotating shaft housing hole 21, and the switches 26 a to 26 d are respectively arranged at predetermined positions at the bottom of the rotating disk housing hole 22. The rotating shaft 24 also serving as a vertical pressing portion of the switch 25 is rotated by the rotating shaft. The turntable 23 is stored in the turntable storage hole 22 while being stored in the storage section 21.
[0029]
In this example, the height of the surface of the turntable 23 and the height of the device housing 1 are substantially the same, but the height of the surface of the turntable 23 is made different by the projections 27a to 27d, and the inner peripheral wall of the storage groove 22 is formed. Are vertically extended to form side walls to be touched by the operator's finger of each of the projections 27a to 27d.
[0030]
Further, as a rotation detecting means for detecting the rotation of the rotary disc 23 of the disc jog dial of this embodiment, a rotation detector as shown in FIG. 8 is exemplified. That is, in FIG. 8, reference numeral 203 denotes a rotary disk, and a dotted line 204 denotes a position of a magnet arranged on a rear surface of the rotary disk 203, for example, at a position obtained by dividing one circumference into 12 equal parts. Reference numeral 200 denotes, for example, a housing of an electronic device, and reference numerals 201 and 202 denote magnetic sensors including a Hall element and the like.
[0031]
When the turntable 23 is rotated, the magnets disposed on the back of the turntable rotate, and two sensors 201 and 202 provided on the equipment housing detect changes in the magnetic field. By monitoring the detected phase difference and the detection order, information on the amount of rotation and the direction of rotation can be obtained, and this information is supplied to the control unit of the electronic device main body, and the cursor displayed on the screen is moved. For example, predetermined control is performed. It should be noted that the rotation detecting means applied to the present embodiment is not limited to this example, and various other structures can be adopted using other well-known techniques.
[0032]
When the user rotates the disc jog dial, the rotating shaft 24 of the rotating disc 23 rotates in the horizontal direction with the switch 25 as a fulcrum, and when a desired position of the rotating disc 23 is pressed, the back face of the rotating disc is rotated. And any of the switches 25, 26a to 26d near the outer periphery of the turntable abut to turn on a desired switch.
[0033]
With this configuration, according to the present embodiment, the surface of the rotating disk 23 is placed on the equipment housing 1 around the rotating disk 23 on a radial extension connecting the rotation center of the rotating disk 23 and each of the switches 26a to 26d. The protrusions 27a to 27d are provided as identification portions having different heights, so that when the operator performs a rotation operation, even if the turntable 23 rotates, the dials are not visually recognized by the protrusions 27a to 27d. With the tactile sensation, the up, down, left, and right switches 26a to 26d provided below the turntable 23 can be pressed.
[0034]
In addition, since the depression 23a is provided near the center of the surface of the turntable, the center of the turntable 23 can be recognized and pressed by tactile sensation without visually recognizing the dial. The operation can be performed accurately and quickly without causing an erroneous operation such as accidental pressing or pressing of an unintended switch.
[0035]
Next, an example of another embodiment of the present invention will be described with reference to FIG. FIG. 5 illustrates the disc jog dial mounted on the mobile phone of the present embodiment and the peripheral shape thereof in detail. In this example, the device housing is higher than the surface of the turntable, and a concave concave surface is provided on the device housing around the turntable on a radius extension connecting the center of rotation of the turntable and each switch. In other respects, the configuration is the same as that of the example in FIG. 5A and 5B show the disc jog dial of the present example and its peripheral portion. FIG. 5A is a top view, and FIG. 5B is a sectional view taken along line YY of FIG. 5A. In FIG. 5, portions corresponding to those in FIG. 4 are denoted by the same reference numerals.
[0036]
In FIG. 5A, reference numeral 33 denotes a rotary disk of a disc jog dial arranged rotatably in the horizontal direction, and reference numeral 33a denotes a projection provided on the rotary disk rotation center on the surface of the rotary disk 33. 37a, 37b, 37c, and 37d (hereinafter, referred to as 37a to 37d) are provided on an equipment housing (lower housing) around the turntable 33 at lower, upper, lower, right and left positions near the outer periphery of the turntable 33 described later. A depression provided as an identification unit for recognizing the position of the provided press switch means (hereinafter, referred to as a switch), and is disposed on an extension line of the radius connecting the rotation center of the turntable 33 and each switch. . Further, the shapes of these depressions are concave curved surfaces so as to match the shape of the lower side surface (side surface of the belly of the finger) of the finger to be operated.
[0037]
In FIG. 5B, reference numeral 1 denotes an equipment housing (lower housing) on which the disc jog dial is installed. The cross section of the rotary disk 33 and the switches 25, 26a, and 26c on the cutting line YY is indicated by oblique lines. I have. The switches 26a and 26c are a right switch and a left switch, respectively. As shown in FIG. 5A, in this example, the switches are installed in four directions of up, down, left, and right. The switch 25 is arranged at the bottom of the rotating shaft housing hole 31, and the switches 26 a to 26 d are respectively arranged at predetermined positions at the bottom of the rotating disk housing hole 32, and the rotating shaft 24 also serving as a vertical pressing portion of the switch 25 is rotated by the rotating shaft. The turntable 33 is stored in the turntable storage hole 32 while being stored in the storage section 31.
[0038]
With this configuration, according to the present example, the surface of the rotary disk 33 is placed on the equipment housing 1 around the rotary disk 33 on the extension of the radius connecting the rotation center of the rotary disk 33 and each of the switches 26a to 26d. The recesses 37a to 37d are provided as identification portions having different heights, so that when the operator performs a rotating operation, the fingertips are formed by the recesses 37a to 37d without visually recognizing the dial even when the turntable 33 rotates. With the tactile sensation, the upper, lower, left and right switches 26a to 26d provided below the turntable 33 can be pressed.
[0039]
In addition, since the shapes of the recesses 37a to 37d are concave curved surfaces, the operability is further improved, and the finger is slid up, down, left and right on the turntable 33 to stop the finger at the position where it hits the concave curved surface, and press that position. Thereby, accurate and prompt operation can be performed. For example, this is particularly effective when a fast operation is required such as a game operation device.
[0040]
In addition, since the projection is provided near the center of the turntable, the center of the turntable 33 can be recognized and pressed by tactile sense without visually recognizing the dial, and the operation can be performed accurately and quickly. In addition, this embodiment has the same operation and effect as the embodiment of FIG.
[0041]
Next, an example of still another embodiment of the present invention will be described with reference to FIG. FIG. 6 illustrates in detail the disc jog dial mounted on the mobile phone of the present embodiment and its peripheral shape. In this example, the rotary disk and the switch on the rotary shaft are independent, and a protrusion having a concave curved surface on the device housing around the rotary disk on the radius extension connecting the rotation center of the rotary disk and each switch ( (An uneven portion), and the other configuration is the same as that of the example in FIG. 6A and 6B show the disc jog dial of the present example and its peripheral portion. FIG. 6A is a top view, and FIG. 6B is a sectional view taken along line ZZ of FIG. 6A. In FIG. 6, parts corresponding to those in FIG. 4 are denoted by the same reference numerals.
[0042]
In FIG. 6A, reference numeral 43 denotes a donut-shaped turntable of a disc jog dial arranged rotatably in the horizontal direction, and reference numeral 44 denotes a vertical pressing portion provided at the center of rotation of the turntable independently of the turntable 43. Numeral 40 forms a boundary between the rotating disk 43 and the vertical pressing portion 44, and constitutes a storage hole of the rotating disk 43 and a storage hole of the vertical pressing device described later.
[0043]
47a, 47b, 47c, and 47d (hereinafter referred to as 47a to 47d) are provided on the equipment housing (lower housing) around the rotary disk 43 at the upper, lower, left, and right positions below the outer peripheral portion of the rotary disk 43 described later. The protrusion is provided as an identification unit for recognizing the position of the provided switch, and is disposed on an extension line of the radius connecting the rotation center of the turntable 43 and each switch. Further, these projections 47a to 47d have depressions 48a, 48b, 48c, 48d (hereinafter referred to as 48a to 48d), and have concave curved surfaces so as to match the shape of the lower side surface of the finger to be operated.
[0044]
In FIG. 6B, reference numeral 1 denotes an equipment housing (lower housing) on which the disc jog dial is installed. The cross section of the rotary disk 43 and the switches 25, 26a, and 26c on the cutting line ZZ is indicated by oblique lines. I have. The switches 26a and 26c are a right switch and a left switch, respectively. As shown in FIG. 6A, in this example, the switches are installed in four directions of up, down, left, and right. The switch 25 is disposed at the bottom of the rotary shaft storage hole 41, and the switches 26a to 26d are respectively disposed at predetermined positions at the bottom of the turntable storage hole 42. The vertical pressing portion 44 of the switch 25 is connected to the vertical pressing portion storage 41. The rotating disk 43 is stored in the rotating disk storage hole 42 while being stored.
[0045]
In this example, the surface of the rotary disk 43 and the height of the device housing 1 are almost the same, but the device housing around the rotary disk 43 on a radius extension connecting the rotation center of the rotary disk 43 and each of the switches 26a to 26d. 1 are provided with projections 47a to 47d to make a difference in height from the surface of the rotary table 43, and depressions 48a to 48d are provided in portions of the projections 47a to 47d where an operator's finger touches. The configuration is the same as the example.
[0046]
With this configuration, according to the present embodiment, the surface of the rotary disk 43 is placed on the device housing 1 around the rotary disk 43 on a radius extension connecting the rotation center of the rotary disk 43 and each of the switches 26a to 26d. And projections 47a to 47d having depressions 48a to 48d as identification portions having different heights are provided, so that when the operator performs a rotation operation, the dial can be visually recognized even when the turntable 43 rotates. In addition, the depressions 48a to 48d allow the user to press the upper, lower, left and right switches 26a to 26d provided below the turntable 43 with the sense of touch of the fingertip.
[0047]
In addition, since the shapes of the depressions 48a to 48d are concave curved surfaces, the operability is further improved, and the finger is slid up, down, left and right on the turntable 43 to stop the finger at the position where it hits the concave curved surface, and press that position. Thereby, accurate and prompt operation can be performed. For example, this is particularly effective when a fast operation is required such as a game operation device. In addition, this embodiment has the same operation and effect as the embodiment of FIG.
[0048]
In this example, since the turntable 43 has a donut shape and the vertical pressing portion 44 at the center of rotation does not rotate independently, the switch can be provided below the inner periphery of the turntable 43.
[0049]
Note that the identification unit provided at a position corresponding to the press switch on the housing surface around the turntable of the present invention only needs to be able to be identified by the tactile sensation of the fingertip, for example, a wavy shape in which the convex part and the concave part are formed continuously. Such a thing may be used.
[0050]
In addition, the present invention can be applied to operation units of various devices such as a game machine, a PDA (Personal Digital Assistant), and a personal computer, in addition to the above-described mobile phone.
[0051]
Further, the present invention is not limited to the above-described embodiment, and it goes without saying that various other configurations can be adopted without departing from the gist of the present invention.
[0052]
【The invention's effect】
According to the present invention, an identification section having a height different from the surface of the rotating disk is provided at a position corresponding to the pressing switch means on the surface of the housing around the rotating disk. Even in this case, the position of the pressing switch provided below the turntable can be easily grasped by tactile sense, and the operability can be improved.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a foldable mobile phone according to an embodiment of the present invention in a fully opened state.
FIG. 2 is an external perspective view of the folding mobile phone of FIG. 1 in a slightly opened state.
FIG. 3 is a block diagram illustrating an example of a circuit configuration of a mobile phone according to an embodiment of the present invention.
4A and 4B are a top view and a cross-sectional view illustrating a peripheral shape of a disc jog dial according to an embodiment of the present invention.
FIG. 5 is a top view and a cross-sectional view showing a peripheral shape of a disc jog dial according to another embodiment of the present invention.
FIG. 6 is a top view and a sectional view showing a peripheral shape of a disc jog dial according to another embodiment of the present invention.
7A and 7B are a top view and a cross-sectional view illustrating a peripheral shape of a conventional disc jog dial.
FIG. 8 is a diagram illustrating an example of a rotation detector.
[Explanation of symbols]
1 ··· Device housing (lower housing), 23, 33, 43, 203 ··· Rotating disk, 23a ··· Depression, 33a ··· Projection, 25, 26a, 26b, 26c, 26d... Switches (press switch means), 27a, 27b, 27c, 27d, 37a, 37b, 37c, 37d, 47a, 47b, 47c, 47d, 48a, 48b, 48c, 48d. 201, 202 ... magnetic sensor (rotation detecting means)

Claims (5)

A housing;
A turntable disposed on the housing so as to be rotatable in a horizontal direction,
Rotation detection means for detecting the rotation of the turntable,
Press switch means provided below the periphery of the outer periphery of the turntable;
An electronic device, comprising: an identification unit having a height different from that of the rotary disk surface at a position corresponding to the pressing switch means on a surface of the housing around the rotary disk. The electronic device according to claim 1,
The electronic device according to claim 1, wherein the identification unit is formed of any one of a protrusion, a depression, an uneven shape, and a wavy shape. The electronic device according to claim 2,
An electronic device, wherein the identification unit has a concave curved surface. The electronic device according to claim 1,
The electronic device, wherein the identification unit is provided at upper, lower, left, and right positions around the rotary disk on the device housing. The electronic device according to claim 1,
An electronic device, comprising: a projection or a depression at a rotation center of the rotating disk on the rotating disk surface.

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