JP2007067506A - Electronic apparatus and operation control method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic apparatus with an opening/closing state detecting function whose weight and size are reduced. <P>SOLUTION: The electronic apparatus 100 includes: first and second cases 100A, 100B; and a hinge unit 100C for mutually rotatably connecting the first and second cases 100A, 100B. The electronic apparatus 100 is furthermore provided with: a flexible board 3 arranged from the inside of the first case 100A to the inside of the second case 100B via the inside of the hinge unit 100C and mutually electrically connecting the inside of the first case 100A and the inside of the second case 100B; a magnetic field generation electric conduction member 6 located to the flexible board 3 so as to be bent along with bend of the flexible board 3, to which a prescribed current is supplied, and generating a magnetic field with a strength corresponding to a relative angle between the first and second cases 100A, 100B; a magnetic field strength detection means 8 for detecting the strength of the magnetic field generated from the magnetic field generation electric conduction member 6; and a control signal output means 9 for outputting a control signal according to the strength of the magnetic field detected by the magnetic field strength detection means 8. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electronic device and an operation control method thereof.

  2. Description of the Related Art Conventionally, some types of mobile phones or other foldable mobile communication devices have a function that operates in conjunction with an opening / closing operation.

  As a specific example of such a function, for example, the display is turned off in the closed state while the display is turned on when shifting from the closed state to the open state, and the receiving and ending operations are linked to the opening / closing operation. Functions.

  In addition, the characteristics of an antenna that transmits and receives radio waves greatly depend on the shape of the device. For this reason, there is a technique for improving communication quality by linking the switching operation of the antenna matching circuit with the opening / closing operation.

  In order to realize the function linked to the opening / closing operation as described above, it is necessary to provide a circuit for detecting the opening / closing state of the apparatus.

  As such a conventional technique, for example, there are techniques disclosed in Patent Documents 1 and 2.

  Patent Document 1 discloses a foldable device having a mechanism for detecting an open / close state by a switch.

Patent Document 2 discloses a foldable mobile phone that detects an open / close state using a magnet and a Hall IC that detects the strength of a magnetic field generated from the magnet.
JP 2003-158573 A JP 2004-297453 A

  By the way, although the foldable mobile communication device has been reduced in weight and size, the techniques of Patent Documents 1 and 2 need to be provided with a mechanical part such as a magnet and a Hall IC or a switch, and are limited in size and weight. However, there is a problem that it is difficult to reduce the weight and size.

  Therefore, there is a need for a technique that can detect the opening / closing of a device while minimizing the addition of new parts.

  Also, when using it for data communication or videophone, do not hold it in your hand in a fully open state (for example, about 160 °), but set it to a certain degree of open angle (for example, about 90 °) and place it on a desk or the like. Since it is considered to be used, a technique for detecting an intermediate angle between the fully open state and the closed state is also required.

  The present invention has been made in order to solve the above-described problems, and includes a first and second housing and a hinge portion that couples the first and second housings so as to be rotatable relative to each other. When detecting the open / closed state of an electronic device equipped with the above, it is possible to suitably realize weight reduction and miniaturization, and it is also possible to easily detect an intermediate angle between the fully opened state and the closed state An object of the present invention is to provide an electronic device and an operation control method thereof.

  In order to solve the above-described problem, an electronic device according to the present invention includes first and second housings, a hinge portion that connects the first and second housings so as to be rotatable, and the first housing. An inside of the housing is disposed over the inside of the second housing through the inside of the hinge portion, and the inside of the first housing and the inside of the second housing are electrically connected to each other. A flexible substrate to be connected to each other, and a constant current is applied to the flexible substrate so as to bend along with the flexible substrate, and the relative angle between the first and second housings A magnetic field generating energizing member that generates a magnetic field of a corresponding strength, a magnetic field strength detecting means for detecting the strength of the magnetic field generated from the magnetic field generating energizing member, and a magnetic field detected by the magnetic field strength detecting means. And a control signal output means for outputting a control signal according to the strength.

  In the electronic apparatus of the present invention, the magnetic field strength detecting means is a Hall IC that detects the strength of the magnetic field generated from the magnetic field generating energizing member and outputs a voltage corresponding to the detected value, and the control signal The output means preferably outputs the control signal in accordance with a voltage value output from the Hall IC.

  In the electronic device according to the present invention, the magnetic field generating energizing member is an electric device that supplies electric power from a power source disposed in one of the first and second housings to the other housing. A wiring is preferable.

  In the electronic device of the present invention, the flexible substrate includes a first circuit board disposed in the first casing and a second circuit board disposed in the second casing. It is preferable that they are electrically connected to each other.

  In the electronic device according to the aspect of the invention, the flexible substrate includes a winding portion wound in the hinge portion, and the magnetic field generating energization member is wound in the winding portion of the flexible substrate. It is preferable to arrange | position along.

  The electronic apparatus of the present invention preferably includes a display device and display control means for performing display control of the display device in accordance with the control signal from the control signal output means.

  In the electronic apparatus according to the present invention, the antenna constant is selectively set to any one of a plurality of values in accordance with the antenna for transmitting and receiving radio waves for wireless communication and the control signal from the control signal output means. It is preferable to include an antenna matching switching circuit for switching.

  In the electronic apparatus according to the aspect of the invention, it is preferable that the control signal output unit outputs the control signals according to at least three stages of relative angles of the first and second casings.

  In the electronic device of the present invention, it is preferable that the user can arbitrarily set what operation is performed in accordance with the control signal.

  In the electronic device of the present invention, it is preferable that the first and second housings can be folded together.

  The electronic device of the present invention is preferably a mobile communication terminal device having a wireless communication function.

  The electronic device operation control method according to the present invention includes a first housing, a second housing, a hinge portion that connects the first housing and the second housing so as to be rotatable, and the first housing. The inside of the body is arranged from the inside of the body to the inside of the second housing through the inside of the hinge portion, and the inside of the first housing and the inside of the second housing are electrically connected to each other. In a method for controlling the operation of an electronic device comprising a flexible substrate connected to a flexible substrate, a constant current is applied to a magnetic field generating energization member provided on the flexible substrate so as to bend along with the flexible substrate. A first process of generating a magnetic field having a strength corresponding to the relative angle between the first and second casings from the magnetic field generating energizing member, and a magnetic field generated from the magnetic field generating energizing member. A control signal is output according to the second process of detecting the strength and the strength of the magnetic field detected by the second process. A third step of, is characterized by and a fourth process of performing an operation in accordance with said control signal.

  In the operation control method for an electronic device according to the present invention, in the second step, the strength of the magnetic field generated from the magnetic field generating energization member is detected by a Hall IC, and a voltage corresponding to the detected value is set in the Hall. Preferably, the control signal is output from the IC, and in the third step, the control signal is output in accordance with the value of the voltage output from the Hall IC.

  In the operation control method for an electronic device according to the present invention, it is preferable that the electronic device includes a display device, and in the fourth process, display control of the display device is performed according to the control signal.

  In the operation control method for an electronic device according to the present invention, the electronic device includes an antenna that transmits and receives radio waves for wireless communication, and an antenna that selectively switches a matching constant of the antenna to any one of a plurality of values. A matching switching circuit, and switching the matching constant according to the control signal in the fourth step.

  According to the present invention, the following effects can be obtained.

  The first effect is that the electronic device can be reduced in size and weight.

  The reason for this is that, conventionally, there are a method of incorporating a mechanical switch part and a method of detecting using a magnet and a Hall IC for detection of opening and closing, but in the present invention, only one magnetic field strength detection means such as a Hall IC is provided. This is because it is feasible and does not require a magnet or a mechanical switch part, and thus can be made smaller and lighter than before.

  The second effect is that the state of the electronic device can be detected at an arbitrary angle other than opening and closing.

  In the case of opening / closing detection using a magnet and a Hall IC, detection is performed by largely separating the magnet from the Hall IC, so that only two states of presence / absence of a magnetic field can be detected.

  On the other hand, in the present invention, a magnetic field change can be detected in more detail by arranging magnetic field intensity detection means such as a Hall IC in the vicinity of the flexible substrate that is a magnetic field generation source. can get.

  Embodiments according to the present invention will be described below with reference to the drawings.

  In this embodiment, a foldable mobile phone as a preferred example of an electronic apparatus according to the present invention will be described.

  1 is a perspective view showing a state in which the foldable mobile phone 100 according to the present embodiment is opened (fully opened), FIG. 2 is a side sectional view showing a state in which the foldable mobile phone 100 is opened (fully opened), FIG. FIG. 3 is a block diagram showing a main block configuration of the foldable mobile phone 100.

  As shown in FIGS. 1 and 2, the foldable mobile phone 100 includes a first casing 100A and a second casing 100B, and the first casing 100A and the second casing 100B that are pivotably connected to each other. Hinge portion 100C.

  Opening and closing (folding) the foldable mobile phone 100 by relatively rotating the first casing 100A and the second casing 100B about the rotation axis of the hinge part 100C. Can be done.

  Note that when the foldable mobile phone 100 is fully opened, the angle between the first casing 100A and the second casing 100B is larger than 90 ° (for example, about 160 °).

  The first casing 100A is provided with a display (display device) 4, and the display screen 4A of the display 4 is located inside the first casing 100A when, for example, the folding mobile phone 100 is folded. It is arranged on the surface.

  On the other hand, in the second casing 100B, for example, an operation unit 5 configured to include a plurality of operation keys is disposed on an inner surface when the foldable mobile phone 100 is folded.

  The second casing 100B is provided with an antenna 11 (FIG. 3) that transmits and receives radio waves for wireless communication, for example.

  As shown in FIG. 2, the first circuit board 1 is provided inside the first casing 100A, and the second circuit board 2 is provided inside the second casing 100B.

  In addition, a flexible substrate (flexible substrate) 3 that electrically connects the first circuit board 1 and the second circuit board 2 to each other extends from the inside of the first housing 100A to the inside of the hinge portion 100C. Via the inside of the second casing 100B.

  The flexible substrate 3 is flexible, and has a winding portion 3A that is wound spirally, for example, only once in the hinge portion 100C, as shown in FIG.

  The winding portion 3A is for absorbing a path difference that occurs when the first and second casings 100A and 100B are folded or opened.

  In the flexible substrate 3, a magnetic field generating wiring (magnetic field generating energization member, electric wiring) 6 that generates a magnetic field according to the bending of the flexible substrate 3 is provided.

  The magnetic field generating wiring 6 is disposed, for example, along the winding direction (circumferential direction) in the winding portion 3 </ b> A of the flexible substrate 3.

  Here, for example, the power supply 7 of the foldable mobile phone 100 is provided in the second casing 100B, and the magnetic field generating wiring 6 is connected to the first power supply 7 in the first casing 100A, for example. This is for supplying power to the IC 15 provided on one circuit board 1.

  The power consumption of the IC 15 is always substantially constant, and when the power of the foldable mobile phone 100 is on, a substantially constant current always flows through the magnetic field generation wiring 6. Further, based on this current, a magnetic field is generated around the magnetic field generating wiring 6.

  4 to 6 are diagrams showing the inner diameter of the winding portion 3A of the flexible substrate 3 in accordance with the opening angle of the foldable mobile phone 100. Of these, FIG. 4 shows a state in which the foldable mobile phone 100 is closed. FIG. 5 shows a state in which the foldable mobile phone 100 is opened 90 °, and FIG. 6 shows a state in which the foldable mobile phone 100 is fully opened.

  As shown in FIGS. 4 to 6, the inner diameter r of the winding portion 3A of the flexible substrate 3 changes according to the open / closed state of the foldable mobile phone 100, and is the smallest in the closed state (FIG. 4) and fully open (see FIG. 4). 6) is the largest.

  Since the magnetic field generating wiring 6 is bent as the flexible substrate 3 is bent, the strength of the magnetic field generated by the magnetic field generating wiring 6 changes according to the open / close state of the foldable mobile phone 100.

  As shown in FIG. 3, for example, the second control board 2 detects a change in the magnetic field generated by the magnetic field generation wiring 6 according to the bending of the flexible board 3, and responds to the detected value. A Hall IC 8 that outputs a voltage, a voltage comparison circuit (control signal output means) 9 that compares the voltage output from the Hall IC 8 with a reference value, and outputs a control signal according to the comparison result, and the voltage comparison circuit 9, a reference value memory unit 10 that stores and holds a reference value used for comparison, an antenna matching switching circuit 12 that switches a matching constant of the antenna 11 according to a control signal from the voltage comparison circuit 9, and a control from the voltage comparison circuit 9 A display display control circuit (display control means) 14 that controls display of the display 4 in accordance with the signal is provided.

  The Hall IC 8 is disposed in the vicinity of the magnetic field generating wiring 6, detects a magnetic field generated when a current flows through the magnetic field generating wiring 6, and applies a voltage corresponding to the strength (magnetic flux density) of the magnetic field. Output to the comparison circuit 9.

  The voltage comparison circuit 9 compares the voltage input from the Hall IC 8 with the reference value acquired from the reference value memory unit 10, and outputs a control signal according to the comparison result.

  FIG. 7 is a diagram showing a connection relationship between the voltage comparison circuit 9, the display display control circuit 14, and the antenna matching switching circuit 12, and details of the matching circuit 16 of the antenna 11 (including the antenna matching switching circuit 12).

  As shown in FIG. 7, the voltage comparison circuit 9 includes, for example, a first comparator 91 and a second comparator 92.

  Among these, the first comparator 91 compares the voltage input from the Hall IC 8 with the reference value a, and outputs a control signal X corresponding to the comparison result to the display display control circuit 14 and the antenna matching switching circuit 12.

  The second comparator 92 compares the voltage input from the Hall IC 8 with the reference value b, and outputs a control signal Y corresponding to the comparison result to the display display control circuit 14 and the antenna matching switching circuit 12.

  In response to these two control signals X and Y, the display display control circuit 14 controls the display 4 and the antenna matching switching circuit 12 switches the matching constant.

  As shown in FIG. 7, the matching circuit 16 of the antenna 11 includes a main matching circuit 17 and an antenna matching switching circuit 14.

  The main matching circuit 17 includes a coil L1 having one end connected to the antenna 11, a capacitor C1 having one end connected to the other end of the coil L1 and grounded at the other end, and a connection point between the antenna 11 and the coil L1. And a coil L4 having one end connected and the other end grounded.

  On the other hand, the antenna matching switching circuit 14 includes resistors R1 and R2, diodes D1 and D2, capacitors C2 and C3, and coils L2 and L3.

  The signal line of the control signal X is connected to one end of the resistor R1, the anode of the diode D1 is connected to the other end of the resistor R1, the one end of the capacitor C2 is connected to the cathode of the diode D1, and the other end of the capacitor C2. Is connected to one end of the coil L2, and the other end of the coil L2 is connected to a connection point between the antenna 11 and the coil L1.

  Similarly, the signal line of the control signal Y is connected to one end of the resistor R2, the anode of the diode D2 is connected to the other end of the resistor R2, the one end of the capacitor C3 is connected to the cathode of the diode D2, and the capacitor C3 The other end of the coil L3 is connected to one end of the coil L3, and the other end of the coil L3 is connected to a connection point between the antenna 11 and the coil L1.

  Next, the operation will be described.

  FIG. 8 is a diagram showing the relationship between the magnetic flux density B detected by the Hall IC 8 and the output voltage V of the Hall IC 8.

  As shown in FIG. 8, as the angle between the first casing 100A and the second casing 100B increases, the magnetic field generated from the magnetic field generating wiring 6 increases, and the magnetic flux density B detected by the Hall IC 8 increases. (Higher).

  Further, as the magnetic flux density B detected by the Hall IC 8 increases (increases), the output voltage V of the Hall IC 8 increases.

  The first comparator 91 of the voltage comparison circuit 9 determines the magnitude of the output voltage V of the Hall IC 8 and the value a shown in FIG. 8, and when the voltage V is greater than a, it is L (low), and when it is less than a. Outputs H (high) as the control signal X.

  The second comparator 92 determines the magnitude of the output voltage V of the Hall IC 8 and the value b (b> a) shown in FIG. 8. When the voltage V is greater than b, L (low), a or less In this case, H (high) is output as the control signal Y.

  Therefore, the output from the voltage comparison circuit 9 is that the control signals X and L are both H when the foldable mobile phone 100 is closed, and the control signals X and L are both L when the foldable mobile phone 100 is fully open, and 90 ° In the open state, the control signal X is H and the control signal Y is L, which are output to the display display control circuit 14 and the antenna matching switching circuit 12, respectively.

  As described above, the voltage comparison circuit 9 outputs the control signals X and Y in a combination corresponding to at least three stages of relative angles (for example, full open, closed, 90 ° open) of the first and second casings 100A and 100B. Output.

  The display display control circuit 14 performs, for example, the following control according to the control signals X and Y from the voltage comparison circuit 9.

  When the foldable mobile phone 100 is in a closed state, that is, when the control signals X and Y are both H, the display display control circuit 14 performs control to always turn off the display on the display 4.

  Further, when the foldable mobile phone 100 is fully opened, that is, when both the control signals X and Y are L, control for turning on the display 4 is performed. However, even when the control signals X and Y are both L, if the key operation is not performed for a predetermined time, the display 4 is turned off.

  Further, when the foldable mobile phone 100 is in the 90 ° open state, that is, when the control signal X is L and the control signal Y is H, the user can arbitrarily set in advance, for example. . That is, the user (user) can arbitrarily set what kind of operation the folding cellular phone 100 performs in accordance with the control signals X and Y.

  Specifically, for example, when using a function such as data communication, the display 4 is often not checked frequently even if it is mounted on a desk or the like with the opening at 90 °. It is also possible to set so that In this case, however, the display 4 is turned on when there is a key operation or an incoming call. Alternatively, it is possible to set the operation so as to be the same as that in the fully opened state even in the 90 ° opened state.

  Further, the antenna matching switching circuit 12 performs matching according to the control signals X and Y from the voltage comparison circuit 9 so that the folding mobile phone 100 becomes an optimal matching circuit in each of the closed state, the fully opened state, and the 90 ° opened state. Switch constants.

  When the folding mobile phone 100 is fully opened and the outputs of the control signals X and Y from the voltage comparison circuit 9 are both L, the antenna 11 is matched by the coil L1 and the capacitor C1 of the main matching circuit 17.

  Further, when the foldable mobile phone 100 is closed and the outputs of the control signals X and Y are both H, the diodes D1 and D2 are turned on, and the coils L2 and L3 and the capacitors C2 and C3 are connected to the antenna 11. This optimizes the matching constant.

  When the folding cellular phone 100 is in the 90 ° open state, the control signal X is H and Y is L, so that only the diode D1 is turned on among the diodes D1 and D2, and the coils L2 and L3, and the capacitors C2 and C3 are turned on. Of these, only the coil L2 and the capacitor C2 are connected to the antenna 11, so that the matching constant is optimized.

  In this manner, the diodes D1 and D2 are turned on / off by the control signals X and Y, and the matching constant of the antenna 11 is optimized according to the open / close state of the foldable mobile phone 100.

  According to the embodiment as described above, the following effects can be obtained.

  The first effect is that the foldable mobile phone 100 can be reduced in size and weight.

  The reason for this is that, conventionally, there are a method of incorporating a mechanical switch part and a method of detecting using a magnet and a Hall IC for detection of opening and closing, but this embodiment can be realized by providing only one Hall IC 8, This is because a magnet or a mechanical switch part is not necessary, and can be made smaller and lighter than the conventional one.

  The second effect is that the state of the folding mobile phone 100 can be detected at an arbitrary angle other than opening and closing.

  In the case of opening / closing detection using a magnet and a Hall IC, since detection is performed by largely separating the magnet from the Hall IC, it is difficult to detect only two states, ie, presence or absence of a magnetic field. In addition, when a mechanical switch component is used, there is a demerit that it becomes difficult to reduce the size and weight as the number of opening / closing angles to be detected increases.

  On the other hand, in the present embodiment, the change of the magnetic field can be detected in more detail by arranging the Hall IC 8 in the vicinity of the flexible substrate 3 which is a magnetic field generation source. Therefore, by setting an appropriate threshold value, for example, detection at 90 ° is possible in addition to opening and closing. In addition, any other angle can be detected by appropriately changing the threshold value. There is also an advantage that the weight of the apparatus does not change regardless of the number of opening / closing angle steps to be detected.

  In the above embodiment, only the foldable mobile phone 100 as a suitable example of the electronic apparatus according to the present invention has been described. However, the present invention is not limited to this example, and the first and second casings The present invention can be applied to all types of electronic devices that include a hinge portion that connects the first and second housings so as to be rotatable relative to each other.

  Further, the present invention is not limited to a foldable electronic device, and can be applied to any electronic device that can relatively rotate the first housing and the second housing within a predetermined angle range. is there.

  Further, as a preferred example when the present invention is applied to a mobile communication terminal device, the foldable mobile phone 100 has been exemplified above. However, for example, PHS (Personal Handy Phone System), PDA (Personal Digital Assistant), etc. The present invention can be similarly applied to other mobile communication terminal devices.

  In the above embodiment, the magnetic field generating wiring 6 is illustrated as a preferred example of the magnetic field generating energization member, but other members may be used as long as they generate a magnetic field by energization.

It is a perspective view which shows the state which opened the foldable mobile telephone which concerns on embodiment of this invention. FIG. 2 is a side cross-sectional view showing a state in which the foldable mobile phone of FIG. 1 is opened. It is a block diagram which shows the main block structures of the foldable mobile telephone of FIG. It is a figure which shows the internal diameter of the winding part of the flexible substrate according to the open angle of the foldable mobile telephone of FIG. 1, and shows the state which closed the foldable mobile telephone especially. It is a figure which shows the internal diameter of the winding part of the flexible substrate according to the open angle of the foldable mobile telephone of FIG. 1, and shows the state which opened the foldable mobile telephone 90 degrees especially. It is a figure which shows the internal diameter of the winding part of the flexible substrate according to the open angle of the foldable mobile telephone of FIG. 1, and shows the state which opened the foldable mobile telephone especially. It is a circuit diagram which shows the detail of an antenna matching switching circuit. It is a figure which shows the relationship between magnetic flux density and the output voltage of Hall IC.

Explanation of symbols

100 Foldable mobile phone (electronic equipment, mobile communication terminal)
100A 1st housing | casing 100B 2nd housing | casing 100C Hinge part 1 1st circuit board 2 2nd circuit board 3 Flexible substrate (flexible substrate)
3A winding part 4 display (display device)
6 Magnetic field generating wiring (magnetic field generating current-carrying member, electrical wiring)
8 Hall IC (magnetic field strength detection means)
9 Voltage comparison circuit (control signal output means)
DESCRIPTION OF SYMBOLS 11 Antenna 12 Antenna matching switching circuit 14 Display display control circuit (display control means)

Claims (15)

A first housing and a second housing;
A hinge portion for connecting the first and second housings so as to be rotatable with respect to each other;
The inside of the first casing and the inside of the second casing via the inside of the hinge portion are arranged, and the inside of the first casing and the inside of the second casing Flexible substrates that are electrically connected to each other;
A magnetic field that is provided on the flexible substrate so as to be bent along with the flexible substrate and generates a magnetic field having a strength corresponding to a relative angle between the first and second housings. An energizing member for generation;
Magnetic field intensity detecting means for detecting the strength of the magnetic field generated from the magnetic field generating energizing member;
Control signal output means for outputting a control signal according to the strength of the magnetic field detected by the magnetic field strength detection means;
An electronic device comprising: The magnetic field strength detecting means is a Hall IC that detects the strength of a magnetic field generated from a magnetic field generating energizing member and outputs a voltage corresponding to the detected value.
The electronic apparatus according to claim 1, wherein the control signal output unit outputs the control signal according to a value of a voltage output from the Hall IC.   The magnetic field generating energization member is an electrical wiring that supplies electric power from a power source disposed in one of the first and second housings to the other housing. The electronic device according to claim 1 or 2.   The flexible board electrically connects the first circuit board disposed in the first casing and the second circuit board disposed in the second casing to each other. The electronic device according to claim 1, wherein the electronic device is a device. The flexible substrate includes a winding part wound in the hinge part,
5. The electronic apparatus according to claim 1, wherein the magnetic field generating energization member is disposed along a winding direction of a winding portion of the flexible substrate. A display device;
Display control means for performing display control of the display device in accordance with the control signal from the control signal output means;
The electronic apparatus according to any one of claims 1 to 5, further comprising: An antenna for transmitting and receiving radio waves for wireless communication;
An antenna matching switching circuit that selectively switches the matching constant of the antenna to any one of a plurality of values according to the control signal from the control signal output means;
The electronic apparatus according to claim 1, further comprising:   8. The control signal output unit according to claim 1, wherein the control signal output unit outputs the control signal corresponding to at least three stages of relative angles of the first and second casings. 9. Electronic equipment.   9. The electronic apparatus according to claim 1, wherein a user can arbitrarily set what operation is performed in accordance with the control signal.   The electronic apparatus according to claim 1, wherein the first and second housings are foldable with respect to each other.   The electronic device according to claim 1, wherein the electronic device is a mobile communication terminal device having a wireless communication function. A first and second housing; a hinge portion for connecting the first and second housings to each other so as to be rotatable; and the inside of the first housing through the inside of the hinge portion. An electronic device comprising a flexible substrate that is disposed over the inside of the second housing and electrically connects the inside of the first housing and the inside of the second housing. In the method of controlling the operation of
A constant current is passed through a magnetic field generating energization member provided on the flexible substrate so that it bends along with the flexible substrate, and has a strength corresponding to the relative angle between the first and second housings. A first step of generating a magnetic field from the magnetic field generating energization member;
A second step of detecting the strength of the magnetic field generated from the magnetic field generating energization member;
A third step of outputting a control signal according to the strength of the magnetic field detected by the second step;
A fourth step of performing an operation according to the control signal;
An operation control method for an electronic device, comprising: In the second step, the strength of the magnetic field generated from the magnetic field generating energizing member is detected by the Hall IC, and a voltage corresponding to the detected value is output from the Hall IC,
13. The operation control method for an electronic device according to claim 12, wherein in the third process, the control signal is output in accordance with a value of a voltage output from the Hall IC. The electronic device includes a display device,
14. The operation control method for an electronic device according to claim 12, wherein display control of the display device is performed according to the control signal in the fourth process. The electronic device includes an antenna that transmits and receives radio waves for wireless communication, and an antenna matching switching circuit that selectively switches a matching constant of the antenna to any one of a plurality of values.
15. The operation control method for an electronic device according to claim 12, wherein in the fourth process, the matching constant is switched according to the control signal.

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