WO2019194037A1

WO2019194037A1 - Electronic apparatus, electronic apparatus control method and program

Info

Publication number: WO2019194037A1
Application number: PCT/JP2019/013159
Authority: WO
Inventors: 豊人野田; 真我中島; 輝渡邉; 貴純瀬尾; 昂平上村; 敏弘小川; 大士鳥海
Original assignee: キヤノン株式会社
Priority date: 2018-04-03
Filing date: 2019-03-27
Publication date: 2019-10-10

Abstract

[PROBLEM] To provide an electronic apparatus, an electronic apparatus control method and a program that can reduce variation in a haptic effect caused by a vibrating device and felt by a user, irrespective, for instance, of whether or not an accessory is installed, or of the type of any installed accessory. [SOLUTION] Provided is an electronic apparatus to which an external apparatus is detachably installed. The electronic apparatus comprises a control unit that uses a vibration parameter corresponding to the type of the external apparatus installed to the electronic apparatus to control the vibration of a vibration device provided to the electronic apparatus and/or the external apparatus.

Description

Electronic device, control method and program for electronic device

The present invention relates to an electronic device, an electronic device control method, and a program.

Conventionally, in an optical apparatus such as a digital camera or a video camera, a configuration is known in which an operation member that is rotated by a user operation unit is arranged in order to adjust settings related to shooting conditions such as focus, aperture, and zoom. In addition, a mechanical mechanism that generates a click feeling according to the rotation amount of the operation member has been proposed so that the photographer can easily recognize the operation amount, the movement amount, the adjustment amount, and the adjustment position. In Patent Document 1, a rotatable operation member, a plurality of holes in the circumferential direction are formed, a rotation member that rotates integrally with the operation member, and a hole of the rotation member with respect to the rotation operation of the operation member. An electronic device having a click mechanism that generates a click feeling when combined is disclosed. However, when a click feeling is generated by the mechanical mechanism, a click sound is generated. For example, if the operating member is rotated to change the shooting condition when shooting a moving image with a digital camera or a video camera, a click sound may be recorded in the moving image. In addition, in a place where the surroundings are quiet and quietness is required, the click sound may become a noise to the surroundings. Therefore, it is necessary to take measures such as changing the user interface so as to reduce the number of clicks.

In an electronic device such as a portable terminal, for example, in order to notify that an input operation to the touch panel has been detected, a control for electrically driving a vibration device and feeding back vibration to an operator according to the detection result of the input operation Is generally done. In recent years, vibration devices and control circuits have advanced technically, and it has become possible not only to generate conventional monotonous vibrations but also to control the vibrations more precisely. By using such so-called haptic technology, it is possible to reproduce complex and diverse tactile sensations, such as reproduction of a high-quality click feeling.

For the optical equipment described above, a vibration device is installed in place of the conventional mechanical mechanism, and haptic technology is adopted, for example, ON / OFF of click feeling or strength is switched according to the shooting mode or shooting environment, etc. Electrically appropriate control is possible. In addition, by changing the vibration control such as the vibration amplitude and frequency of the vibration device to change the type of tactile sensation according to the photographer's preference or to generate a click feeling according to the function, Control with a high degree of freedom is possible. The tactile sensation reproduced by the vibration device can be changed by adjusting various vibration parameters such as drive frequency and amplitude controlled by the control circuit. Patent Document 2 discloses a configuration in which a vibration parameter is changed and adjusted according to the type of electronic device on which the vibration device is mounted.

JP 2011-8970 A Japanese Patent No. 05172706

Optical devices such as digital cameras may be used with various types of accessories such as strobes and external microphones, and lenses of various sizes and weights. In some cases, the optical device is used by being fixed to a waterproof case or a tripod. That is, when the vibrating device is vibrated based on the vibration parameter adjusted by the optical device alone, the haptic effect felt by the user may vary depending on the presence or absence of accessories attached to the optical device and the type.

An object of the present invention is to provide an electronic device, a control method for the electronic device, and a program capable of reducing the difference in tactile effect due to the vibration device felt by the user even if there is a difference in the presence or type of accessories to be attached. .

An electronic device as one aspect of the present invention is an electronic device to which an external device is detachably attached, and uses the vibration parameter corresponding to the type of the external device attached to the electronic device, and the electronic device and And a control unit that controls vibrations of a vibration device provided in at least one of the external devices.

An electronic device according to another aspect of the present invention is an electronic device including a first electronic device and a second electronic device to which the first electronic device is detachably attached, the first electronic device. And at least one of the second electronic devices includes a vibration device that generates vibration, and the first electronic device controls the vibration device to vibrate using a vibration parameter corresponding to a type of the second electronic device. It comprises a part.

An electronic device control method according to another aspect of the present invention is an electronic device control method in which an external device is detachably attached. The external device is attached to the electronic device; and And vibrating a vibration device provided in at least one of the electronic device and the external device using a vibration parameter corresponding to the type of the external device attached.

Further, a program according to another aspect of the present invention is a program used in an electronic device to which an external device is detachably attached, wherein the external device is attached to the electronic device, and the program is attached to the electronic device. And causing the computer to execute a step of vibrating a vibration device provided in at least one of the electronic device and the external device using a vibration parameter corresponding to a type of the external device.

According to the present invention, it is possible to provide an electronic device, a method for controlling the electronic device, and a program that can reduce the difference in tactile effect due to the vibration device felt by the user even if there is a difference in the presence or type of accessories to be attached. .

1 is an external perspective view of a digital camera that is an example of an electronic apparatus according to an embodiment of the present invention. It is a figure which shows the internal structure of a vibration device. It is a rear perspective view of a digital camera. It is a bottom view of a digital camera. It is a figure which shows the various attachments attached to a digital camera main body. It is a block diagram of a digital camera. FIG. 3 is a block diagram illustrating a connection between the digital camera main body and the accessory according to the first exemplary embodiment. FIG. 4 is a diagram illustrating a vibration parameter management table according to the first embodiment. 3 is a flowchart illustrating a method for controlling the vibrating device according to the first embodiment. 6 is a flowchart illustrating a control method of the vibration device according to the second embodiment. 6 is a flowchart illustrating a control method of the vibration device according to the third embodiment. 1 is an external perspective view of a digital camera that is an example of an electronic apparatus according to an embodiment of the present invention. It is the back perspective view and bottom view of a digital camera. It is a figure which shows the various attachments attached to a digital camera main body. It is a block diagram of a digital camera. 10 is a flowchart illustrating a vibration device control method according to a fourth embodiment. FIG. 10 is a diagram illustrating a vibration parameter management table according to the fourth embodiment. It is a figure which shows the vibration control of Example 4. FIG. FIG. 10 is a diagram illustrating vibrations of the digital camera of Example 4.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each figure, the same members are denoted by the same reference numerals, and redundant description is omitted.

With reference to FIG. 1, an optical apparatus having an optical element, which is an example of an electronic apparatus according to an embodiment of the present invention, will be described. FIG. 1 is an external perspective view of a digital camera 1 which is an example of an electronic apparatus according to an embodiment of the present invention. In the present embodiment, the case where the present invention is applied to an optical apparatus will be described, but the present invention is not limited to this. The present invention can be applied to, for example, electronic equipment in general when a detachable accessory (accessory) is attached to a main body and a vibration device is mounted on at least one of the main body and the accessory.

The digital camera 1 includes a digital camera main body (hereinafter referred to as a camera main body) 100 and a lens barrel 102 that is an image forming unit that forms an object light beam as an optical image.

A grip portion 101 for a user to hold is provided on the front portion of the camera body 100. The lens barrel 102 is detachably attached to the camera body 100 via a lens mount 116 provided on the camera body 100. In FIG. 1, the lens barrel 102 is locked and fixed by a lock mechanism (not shown). When the lens unlock button 113 is pressed in this state, the lock mechanism is unlocked, and the lens barrel 102 can be rotated around the optical axis of the lens barrel 102. When the lens barrel 102 is rotated by a predetermined angle in the unlocked state, the lens barrel 102 can be detached from the camera body 100. A rotation operation unit 103 that can be operated by a user is provided on the outer periphery of the lens barrel 102. The rotation operation unit 103 can rotate around the optical axis of the lens barrel 102. The user can assign an arbitrary function for changing the shooting condition to the rotation operation unit 103. For example, by rotating the rotation operation unit 103, the shooting condition such as a focus position and an exposure correction value can be changed.

On the top surface of the camera body 100, a mode dial 104 for switching various shooting modes, a release button 105 pressed when shooting starts, and an accessory shoe 106 to which an external device such as an external strobe or an external microphone can be attached and detached. And are arranged. Various shooting modes such as a manual shooting mode in which the user can arbitrarily set shooting conditions such as shutter speed and aperture value by rotating the mode dial 104, an auto shooting mode in which an appropriate exposure amount is automatically obtained, and a movie shooting mode You can switch to

A vibration device 107 is provided inside the grip portion 101. A vibrating device 108 is provided inside the lens barrel 102. The

vibration devices

107 and 108 are, for example, devices using piezoelectric elements, devices using an eccentric motor or a linear actuator, and the amplitude and frequency can be changed. The

vibration devices

107 and 108 give vibrations to the grip unit 101 and the rotation operation unit 103 by generating vibrations according to operations of the operation units such as the rotation operation unit 103, the mode dial 104, and the release button 105. When the vibration device 108 is not provided inside the lens barrel 102, only the vibration device 107 may generate vibration according to the operation of the operation unit.

FIG. 2 is a diagram illustrating an internal configuration of the vibration device 107. In the present embodiment, an LRA (Linear Resonant Actuator) type vibration device is used as an example of the vibration device 107. The vibration device 107 includes a vibrator 107a, a magnet 107b, a spring 107c, a coil 107d, and a base 107e. The vibrator 107a holds the magnet 107b and is connected to the base 107e via a spring 107c. The base 107e holds the vibrator 107a so as to be movable in the load direction of the spring 107c. The coil 107d is disposed in the vicinity of the magnet 107b and is electrically connected to a circuit board (not shown). The coil 107d generates an electromagnetic force by being supplied with a current from the circuit board. The vibrator 107a reciprocates by the adsorption and repulsion of the electromagnetic force and the magnetic force of the magnet 107b, and the vibration device 107 generates vibration.

FIG. 3 is a rear perspective view of the camera body 100. On the top surface of the camera body 100, a power lever 109 for switching the operation / non-operation state of the camera body 100 is disposed. When the user operates the power lever 109 while the camera main body 100 is not operating, the camera main body 100 is in an operating state and is ready for photographing. In addition, when the user operates the power lever 109 while the camera body 100 is in an operating state, the camera body 100 enters a non-operating state such as a low power consumption state.

On the back of the camera body 100, an operation button 110 to which various functions are assigned and a display unit 111 having a display for displaying an image are provided. The operation button 110 includes a reproduction button for instructing reproduction of image data, and an image captured by operating the reproduction button is displayed on the display unit 111. When the camera body 100 is in an operating state, the display unit 111 displays a real-time image of the subject image being shot. In addition, various shooting parameters such as a shutter speed and an aperture value are displayed on the display unit 111, and the user can change the setting values of the shooting parameters by operating the operation buttons 110.

FIG. 4 is a bottom view of the camera body 100. On the bottom surface of the camera body 100, a tripod seat 112 to which various external devices such as a tripod and a jacket can be attached is provided.

FIG. 5 shows various attachments that can be attached to the camera body 100. External devices such as a lens barrel 102, an external strobe 114a, an external EVF 114b, and a tripod 115 can be attached to the camera body 100. The lens barrel 102 can be attached to the lens mount 116. The lens mount 116 has an electrical contact. When the lens barrel 102 has an electrical contact, the lens mount 116 is electrically connected to the lens barrel 102. Various attachments 114 such as an external strobe 114 a and an external EVF 114 b can be attached to the accessory shoe 106. The accessory shoe 106 has electrical contacts. When the various attachments 114 that can be attached to the accessory shoe 106 have electrical contacts, the accessory shoe 106 is electrically connected to the various attachments 114. The tripod 115 can be attached to the tripod seat 112. The tripod seat 112 does not have an electrical contact and is not electrically connected to the tripod seat 112.

FIG. 6 is a block diagram of the digital camera of the present embodiment. The power supply unit 120 supplies power to each unit of the camera body 100. The accessory shoe 106 inputs and outputs communication signals and image signals with various attachments (external devices) 114. The operation unit 121 is a member for the user to operate the camera body 100 such as the mode dial 104, the release button 105, and the power lever 109. The control unit 122 controls each unit of the camera body 100 by reading and executing a control program stored in a memory (not shown).

The lens barrel 102 includes a zoom unit 123 that performs zooming by moving at least one optical lens along the optical axis, and a zoom drive control unit 124 that drives and controls the zoom unit 123. When a zooming instruction is input via the rotation operation unit 103, the zoom drive control unit 124 drives the zoom unit 123 based on the instruction received from the control unit 122.

The lens barrel 102 includes a camera shake correction unit 125 including a shift lens as a movable optical correction unit, and a camera shake correction drive control unit 126 that drives and controls the camera shake correction unit 125. The shift lens is movable in a direction different from the optical axis direction. When the camera shake correction function is set to ON during shooting, the camera shake correction drive control unit 126 performs a camera shake correction operation using the camera shake correction unit 125 based on an instruction received from the control unit 122.

The camera shake correction drive control unit 126 includes a pitch direction blur detection unit 127a and a yaw direction blur detection unit 127b as blur detection means capable of detecting vibration applied to the camera body 100. For example, an angular acceleration sensor is used as the pitch direction blur detection unit 127a and the yaw direction blur detection unit 127b. The pitch direction blur detection unit 127a detects a blur in the vertical direction (pitch direction) of the camera body 100 in the normal posture (the posture in which the length direction of the image frame substantially matches the horizontal direction). The yaw direction blur detection unit 127b detects a blur in the horizontal direction (yaw direction) of the camera body 100 in the normal posture.

The pitch direction image stabilization control unit 128a calculates a drive signal in the pitch direction based on the shake signal of the pitch direction shake detection unit 127a. The yaw direction image stabilization control unit 128b calculates a drive signal in the yaw direction based on the shake signal from the yaw direction shake detection unit 127b. The position of the camera shake correction unit 125 is detected by, for example, a magnet and a hall element (not shown). The pitch direction blur detection unit 127 a and the yaw direction blur detection unit 127 b may be provided only in the lens barrel 102, or may be provided in both the lens barrel 102 and the camera body 100.

The lens barrel 102 includes an aperture unit 129 that performs an aperture operation, and an aperture drive control unit 130 that drives and controls the aperture unit 129. Further, the lens barrel 102 includes a lens that performs focus adjustment, and includes a focus unit 131 that performs focus adjustment, and a focus drive control unit 132 that drives and controls the focus unit 131.

The camera body 100 includes a shutter unit 141 that performs a shutter operation, and a shutter drive control unit 142 that drives and controls the shutter unit 141. The camera body 100 also includes an imaging unit 133 including an imaging element that converts an optical image of a subject into an electrical signal by photoelectric conversion. The imaging unit 133 is configured to be drivable in a plane perpendicular to the optical axis. In addition, the imaging unit 133 receives a drive signal based on the shake signal of the pitch direction blur detection unit 127a and the yaw direction blur detection unit 127b via the imaging unit drive control unit 134, and performs a camera shake correction operation.

The release button 105 is a two-stage switch, and is configured such that the first switch (SW1) and the second switch (SW2) are sequentially turned on according to the amount of pressing. The first switch (SW1) is turned on when the release button 105 is pushed almost half, and the second switch (SW2) is turned on when the release button 105 is pushed to the end. When the first switch (SW1) is turned on, the focus drive control unit 132 drives the focus unit 131 to perform focus adjustment. The aperture drive control unit 130 drives the aperture unit 129 to perform automatic exposure adjustment (AE), and the control unit 122 prepares for photographing such as automatic white balance (AWB) and EF (flash pre-emission) processing. When the second switch (SW2) is turned on, the optical image formed by the lens barrel 102 is exposed to the imaging unit 133, and is photoelectrically converted by the imaging unit 133 and output as an electrical signal.

The imaging signal processing unit 135 performs conversion processing for converting the electrical signal output from the imaging unit 133 into an image signal. The image signal processing unit 136 performs processing according to the application on the image signal output from the imaging signal processing unit 135. The storage unit 137 stores the image data generated by the image signal processing unit 136. The storage unit 137 stores various functions and settings of the camera body 100. The display unit 111 displays the image data generated by the image signal processing unit 136 as necessary.

The lens barrel 102 has a rotation operation detection unit 138 that detects the rotation of the rotation operation unit 103. When the operation of the rotation operation unit 103 is detected by the rotation operation detection unit 138, the control unit 122 sends a vibration control signal to the vibration device 108 via the lens barrel vibration device drive control unit 139 to vibrate the vibration device 108. . Note that the vibration control signal may be sent to the vibration device 108 not only when the rotation operation unit 103 is operated but also when the operation unit 121 is operated. Further, the vibration device 107 may be vibrated when the rotation operation unit 103 or the operation unit 121 is operated, or both the

vibration devices

107 and 108 may be vibrated.

FIG. 7 is a block diagram showing the connection between the camera body 100 and the accessory 300 such as the accessory A or the accessory B. The camera body 100 and the accessory 300 are electrically connected to each other and can communicate with each other via the connection portion 301 such as the accessory shoe 106 and the lens mount 116 and the connection portion 301 provided in the accessory 300. The camera body 100 can determine the type of the accessory 300 based on an identification signal that is different for each accessory 300.

The camera body 100 includes a vibration device 107 that generates vibration in order to give the user a feeling of operation in accordance with the operation by the operation unit 121. In addition, the camera body 100 includes a vibration detection unit 302 that can detect vibrations from the vibration device 107 and acquire vibration data. As the vibration detection unit 302, for example, an acceleration sensor or a gyro sensor is used. Note that the vibration by the vibration device 107 may be detected by the pitch direction blur detection unit 127a or the yaw direction blur detection unit 127b.

The accessory 300 has an operation unit 303 for a user to operate. The accessory 300 may include a vibration device 304 that generates vibration in order to give the user a feeling of operation in accordance with an operation by the operation unit 303. Further, the accessory 300 may include a vibration detection unit 309 that can detect vibration by the vibration device 304 and acquire vibration data. The vibration generated by the vibration device 304 may be detected by a shake detection unit that detects vibration in order to perform camera shake correction. The accessory 300 includes a control unit 305 that controls each unit of the accessory 300, a storage unit 307 that stores various functions and settings of the accessory 300, and a power supply unit 308.

The

vibration devices

107 and 304 are controlled based on specific vibration parameters. The vibration parameter includes, for example, a vibration frequency when driving the

vibration devices

107 and 304. By vibrating the vibrating

devices

107 and 304 in the vicinity of the resonance frequency inherent to the housing such as the camera body 100, vibration can be efficiently generated and transmitted to the user as a haptic effect. In addition, the vibration parameter includes an amplitude capable of adjusting the intensity of the vibration itself, a vibration duration related to a time during which the haptic effect can be sensed, and the like.

When the weight of the accessory 300 is not negligible with respect to the camera body 100, the tactile effect felt by the user is different depending on whether or not the accessory 300 is attached if the vibration parameters are the same. Therefore, in this embodiment, when the accessory 300 is attached to the camera body 100, the

vibration devices

107 and 304 are vibrated with vibration parameters corresponding to the accessory 300. The storage unit 137 stores in advance a management table 200 having vibration parameters corresponding to the types of accessories 300 shown in FIG. 8 as table values. When it is detected that the accessory 300 is attached to the camera body 100, the type of the accessory 300 is determined, and the vibration parameter corresponding to the attached accessory 300 can be changed by referring to the management table 200.

In the management table 200, vibration parameters corresponding to the accessory 300 are associated. In the accessory combination name category 201, the type of the accessory 300 and, when a plurality of accessories 300 are attached, the combinations are arranged as items. The vibration parameter is stored for each accessory combination name category 201. In the management table 200, a vibration frequency 202, a vibration intensity (amplitude) 203, and a vibration duration 204 are managed as examples of vibration parameters. Further, in the management table 200, vibration device built-in information 205 that is information indicating whether or not the vibration device 304 is mounted on the accessory 300 and an attachment location 206 that indicates a location where the accessory 300 is attached are managed as vibration parameters. Yes.

Since the vibration parameter is stored in the management table 200, when the accessory 300 is attached to the camera body 100, the

vibration devices

107 and 304 can be vibrated with the vibration parameter corresponding to the type of the accessory 300. When the vibration parameter corresponding to the type of the accessory 300 attached to the management table 200 is not stored, the vibration parameter can be determined by performing calibration. The determined vibration parameter may be newly added to the management data 200.

Here, the calibration method will be described. As one of the calibration methods, the vibration device is vibrated from the low frequency region to the high frequency region, the vibration data is acquired by the

vibration detection units

302 and 309, and the resonance frequency is searched to obtain an appropriate vibration frequency as a vibration parameter. There is a way to reflect as. The storage unit 307 preferably acquires and stores in advance vibration parameters of the

vibration devices

107 and 304 before the accessory 300 is attached. Thereby, it is possible to correct the vibration parameters such as the amplitude and the vibration duration of the

vibration devices

107 and 304 at the frequency determined by the calibration after the accessory 300 is attached.

Hereinafter, with reference to FIG. 9, the control method of the vibration device of the present embodiment will be described. FIG. 9 is a flowchart illustrating the vibration device control method according to the present embodiment, which is executed by the control unit 122.

In step S <b> 1001, the control unit 122 determines whether the accessory 300 is attached to the camera body 100, specifically, whether the camera body 100 is electrically connected to the accessory 300 via the

connection units

301 and 306. To do. When the accessory 300 is attached to the camera body 100, the process proceeds to step S1002, and when the accessory 300 is not attached to the camera body 100, the process of step S1001 is repeated.

In step S1002, the control unit 122 first determines the type of the accessory 300 based on the identification signal received from the accessory 300. Next, the control unit 122 determines whether or not vibration parameters in the combination of the camera body 100 and the accessory 300 are stored in the management table 200 stored in the

storage units

137 and 307. If the vibration parameter is stored, the process proceeds to step S1005. If the vibration parameter is not stored, the process proceeds to step S1003. Even when a plurality of accessories 300 are attached to the camera body 100, it is only necessary to determine whether or not the management table 200 stores vibration parameters for the combination of the camera body 100 and the plurality of accessories 300.

In step S1003, the control unit 122 determines a vibration parameter capable of obtaining the same haptic effect as before by performing calibration. Examples of the calibration method include a method of vibrating the vibrating

devices

107 and 304 from a low frequency region to a high frequency region as described above. Further, as described above, the vibration parameters of the

vibration devices

107 and 304 after the accessory 300 is attached can be corrected based on the vibration parameters of the

vibration devices

107 and 304 before the attachment of the accessory 300 stored in advance.

In step S1004, the control unit 122 newly adds the vibration parameter determined in step S1003 to the management table 200.

In step S1005, the control unit 122 determines a vibration parameter for vibrating the

vibration devices

107 and 304 from the vibration parameter stored in the management table 200. Thereby, the

vibration devices

107 and 304 vibrate based on the vibration parameter corresponding to the type of the accessory 300 attached to the camera body 100.

As described above, in this embodiment, the vibration parameters of the

vibration devices

107 and 304 are appropriately changed depending on the presence / absence of the accessory 300, the type of the accessory 300, and the type of the camera body 100. Thereby, even if the attachment state of the accessory 300 changes, the difference of the tactile effect obtained by the user can be reduced, and the user can operate without a sense of incongruity.

Further, the

vibration devices

107 and 304 may be selectively or simultaneously vibrated for each operation. For example, vibration due to operation of the accessory 300 may vibrate the vibration device 304, and vibration due to operation of the camera body 100 may vibrate the vibration device 107. If the total weight of the camera body 100 and the accessory 300 is large and the

vibration devices

107 and 304 do not have sufficient output, the

vibration devices

107 and 304 may be synchronized and vibrated simultaneously.

In the present embodiment, the relationship between the camera body 100 and the accessory 300 has been described with the camera body 100 as a main component and the accessory 300 as a subordinate product, but the reverse relationship may be used. That is, in the present embodiment, the storage unit 137 stores the management table 200, but the storage unit 307 may store the management table 200. Further, the

storage units

137 and 307 may store the management table 200, and when there is insufficient information on one side, the vibration parameter may be supplemented from the other side. For example, the case where the storage unit 137 does not have the vibration parameter corresponding to the specific accessory 300 and the storage unit 307 stores the vibration parameter when connected to the camera body 100 will be described. In that case, when the accessory 300 is attached to the camera body 100, the vibration parameters stored in the storage unit 307 are transmitted to the camera body 100 side, and new information is added to the management table 200 stored in the storage unit 137. Add as

In the first embodiment, the control method of the vibration device when the camera body 100 and the accessory 300 are electrically connected has been described. However, when the camera body 100 and the accessory 300 are not electrically connected, the method of the first embodiment cannot be applied. Examples of the accessory 300 that is not electrically connected to the camera body 100 include a tripod seat 112 and a jacket cover. In addition, even an accessory such as a strobe or an interchangeable lens may not be electrically connected.

In this embodiment, a control method of the vibration device when the camera body 100 and the accessory 300 are not electrically connected and cannot communicate with each other will be described. Specifically, it is possible to cope with the accessory 300 by performing calibration and correcting the vibration parameter when the camera body 100 is powered on. In the calibration, as described in the first embodiment, the vibrating device 107 is vibrated from a low frequency range to a high frequency range. The camera body 100 may be provided with a function capable of executing calibration by a user's operation, but in this case, it is time-consuming for the user, and thus it is desirable to have a function of automatically executing calibration.

Hereinafter, with reference to FIG. 10, the control method of the vibration device of the present embodiment will be described. FIG. 10 is a flowchart illustrating the vibration device control method according to the present embodiment, which is executed by the control unit 122.

In step S2001, the control unit 122 determines whether the power of the camera body 100 is turned on by operating a power button or the like. If the power is turned on, the process proceeds to step S2002. If the power is not turned on, the process of step S2001 is repeated.

In step S2002, the control unit 122 performs calibration by vibrating the vibration device 107 and determines a vibration parameter.

In step S2003, the control unit 122 causes the storage unit 137 to store the vibration parameter determined in step S2002 as the current setting. In subsequent operations, when the vibrating device is vibrated, the vibration parameters stored in the storage unit 137 can be reflected.

As described above, in this embodiment, the vibration parameter in the accessory attachment state when the power is turned on can be determined by performing calibration at the timing when the power of the camera body 100 is turned on. Thereby, when the camera main body 100 and the accessory 300 are not electrically connected, the attachment state of the accessory 300 can be changed to reduce the difference in tactile effect obtained by the user, and the user can operate without a sense of incongruity. .

In the second embodiment, the control method of the vibration device when the camera body 100 and the accessory 300 are not electrically connected has been described. However, when the accessory 300 that is not electrically connected after the calibration at the time of power-on is attached to the camera body 100, there is a possibility that a difference occurs in the haptic effect felt by the user due to the vibration of the vibration device. In that case, it is necessary to appropriately modify the vibration parameters.

In the present embodiment, the storage unit 137 stores in advance vibration data detected by the vibration detection unit 302 when the vibration device 107 vibrates. Therefore, the control unit 122 corrects the vibration parameter based on the difference between the vibration data acquired from the vibration detection unit 302 when the vibration device 107 vibrates and the vibration data stored in the storage unit 137 in advance. Can do. For example, when the frequency of the vibration data acquired this time is different from the frequency of the vibration data acquired last time, the control unit 122 may correct the vibration frequency among the vibration parameters. In addition, when the vibration of the vibration data acquired this time is weaker or stronger than the vibration of the vibration data acquired last time, the control unit 122 corrects the vibration strength of the vibration parameters according to the strength of the vibration. That's fine. In addition, when the attenuation time of the vibration data acquired this time is shorter or longer than the attenuation time of the vibration data acquired last time, the control unit 122 determines the vibration duration of the vibration parameters according to the length of the attenuation time. Should be corrected. If the difference between the vibration data acquired last time and the vibration data acquired this time is small, specifically, if the difference is smaller than a predetermined value, the vibration parameter may not be corrected.

Hereinafter, with reference to FIG. 11, the control method of the vibration device of the present embodiment will be described. FIG. 11 is a flowchart illustrating the vibration device control method according to the present embodiment, which is executed by the control unit 122.

In step S3001, the control unit 122 determines whether or not the vibration of the vibration device 107 is detected by the vibration detection unit 302. Specifically, the control unit 122 determines whether a vibration detection signal is received from the vibration detection unit 302. When the vibration of the vibration device 107 is detected, the process proceeds to step S3002, and when the vibration of the vibration device 107 is not detected, the process of step S3001 is repeated.

In step S3002, the control unit 122 determines whether or not the difference between the vibration data acquired last time and the vibration data acquired this time is larger than a predetermined value. If the difference is larger than the predetermined value, the process proceeds to step S3003. If the difference is smaller than the predetermined value, this flow ends.

In step S3003, the control unit 122 corrects the vibration parameter based on the difference between the previous vibration data and the current vibration data.

By performing the operation as described above, the vibration parameters of the vibration device 107 can be appropriately corrected.

Further, the vibration parameter may be corrected based not only on the vibration caused by the operation but also on the difference of vibration data detected by periodically vibrating the vibration device 107.

As described above, in this embodiment, even when the accessory 300 that is not electrically connected to the camera body 100 is attached after the camera body 100 is turned on, the vibration parameter of the vibration device 107 is appropriately set. It can be corrected. Thereby, the attachment state of the accessory 300 changes and the difference in the tactile effect obtained by the user can be reduced, and the user can operate without a sense of incongruity. Moreover, the method of the present embodiment can be used not only in the method of the second embodiment but also in combination with the method of the first embodiment.

In the first to third embodiments, control relating to image blur avoidance due to vibration of the imaging unit 133 when the vibration device 107 inside the grip unit 101 and the vibration device 108 inside the lens barrel 102 are vibrated is particularly described. Absent. In this embodiment, control for reducing image blur due to vibration of the vibration device will be described.

FIG. 12 is an external perspective view of the digital camera 1 as viewed from the diagonally upper side on the front side. With respect to the external perspective view of FIG. 1, a second vibrating device 117 is added on the opposite side to the vibrating device 107 inside the grip portion 101. In addition, the direction from the bottom surface to the top surface of the camera body 100 is the yaw axis direction of the yaw direction blur detection unit 127b, and the direction from the second vibration device 117 to the vibration device 107 is the pitch axis direction of the pitch direction blur detection unit 127a. The other components are the same as in FIG.

13A is a rear perspective view of the camera body 100, FIG. 13B is a bottom view of the camera body 100, and FIG. 14 is a view showing various attachments attached to the camera body 100. FIG. The components are the same as those shown in FIGS. 3, 4, and 5, and will not be described. In FIGS. 13A, 13B, and 14, the pitch axis direction and the yaw axis direction are added as in FIG.

FIG. 15 is a block diagram of the digital camera of this embodiment. A second vibration device 117 for vibrating the digital camera main body 100 and a second main body vibration device drive control unit 143 for controlling vibration of the second vibration device 117 are added to the block diagram of FIG. Yes. Since the other components are the same as those in FIG.

Next, control for reducing image blur due to vibration of the vibration device will be described with reference to FIGS.

FIG. 16 is a flowchart in the present embodiment. FIG. 17 is a vibration parameter management table in this embodiment. FIG. 18 is a diagram illustrating a control example of the vibration device in the present embodiment. FIG. 19 is a diagram illustrating the effect of reducing image blur in the control of the vibration device in the present embodiment.

In step S4001 of FIG. 16, the control unit 122 reads the vibration parameter stored in the storage unit 137 at the start of operation such as when the camera body 100 is turned on. The lens barrel vibration device drive control unit 139, the main body vibration device drive control unit 140, and the second main body vibration device drive control unit 143 set the read vibration parameters. In this embodiment, the control of two vibration devices, the vibration device 107 and the second vibration device 117, will be described as an example.

In step S4002, when the user operates the camera body 100 using the operation unit 121, the process proceeds to step S4003. When the user does not perform the operation, the process returns to step S4002.

In step S4003, the control unit 122 determines whether or not the user's operation is a shooting operation. If it is a shooting operation, the process proceeds to step S4004. If not, the process proceeds to step S4008. Here, the shooting operation refers to an operation involving image recording such as still image shooting or moving image recording. When performing the shooting operation, the image blurring of the imaging unit 133 due to the vibration of the vibration device is performed in steps S4004 to S4007. Control to reduce. In the present embodiment, the control for reducing image blur is performed by using a plurality of vibration devices so as to cancel out vibrations in the vicinity of the imaging unit 133.

In step S4004, the main body vibration device drive control unit 140 vibrates the vibration device 107 using the vibration parameter read in step S4001, and the second main body vibration device drive control unit 143 uses the second vibration device 117. Vibrate.

In step S4005, the control unit 122 uses the angular velocity data of the pitch direction shake detection unit 127a read from the pitch direction image stabilization control unit 128a and the angular velocity data of the yaw direction shake detection unit 127b read from the yaw direction image stabilization control unit 128b. It is determined whether or not the vibration amount in the vicinity of the imaging unit 133 is equal to or less than a predetermined threshold value. Here, in this embodiment, the pitch direction blur detection unit 127a and the yaw direction blur detection unit 127b are arranged in the vicinity of the imaging unit 133 near the lens barrel 102, and the vibration amount ( It is assumed that (angular velocity data) can be measured.

If it is determined in step S4005 that the vibration amount of the imaging unit 133 is not less than or equal to the predetermined threshold value | ω | and the vibration amount is greater than the predetermined threshold value | ω |, the vibration parameter is calibrated. Here, a vibration parameter calibration method will be described with reference to FIGS.

FIG. 19A shows angular velocity data of the pitch direction blur detection unit 127a when it is determined in step S4005 that the vibration amount of the imaging unit 133 is larger than the predetermined threshold value | ω |. FIG. 19B shows angular velocity data of the yaw direction blur detection unit 127b when it is determined in step S4005 that the vibration amount of the imaging unit 133 is larger than the predetermined threshold value | ω |.

The horizontal axis of FIG. 19A coincides with the pitch axis of FIGS. 12 to 14, and the coordinate near the origin is closer to the grip unit 101 as the distance from the lens lock release button 113 side of the camera body 100 increases. Is shown.

On the other hand, the horizontal axis of FIG. 19B coincides with the yaw axis of FIGS. 12 to 14, and the vicinity of the origin is closer to the bottom side of the camera body 100 and toward the top side of the camera body 100 as the distance from the origin increases. The approaching coordinates are shown.

In addition, the vertical axis of FIG. 19A indicates the vibration amount (angular velocity data) in the pitch direction, the threshold is ± ω (= | ω |), and the region surrounded by the broken line in FIG. The vibration amount in the vicinity of the imaging unit 133 acquired by the pitch direction blur detection unit 127a is shown.

On the other hand, the vertical axis in FIG. 19B indicates the vibration amount (angular velocity data) in the yaw direction, the threshold is ± ω (= | ω |), and the region surrounded by the broken line in FIG. The vibration amount in the vicinity of the imaging unit 133 acquired by the yaw direction blur detection unit 127b is shown.

Next, drive control of the main body vibration device drive control unit 140 and the second main body vibration device drive control unit 143 in step S4004 will be described. In the vibration parameter management table of FIG. 17, for example, the default setting of the vibration phase difference 207 of the vibration parameter A when the strobe 1 is attached is 180 °. As shown in FIG. 18A, this indicates that the phase difference of the drive control signal is 180 °, and the control signal of the main body vibration device drive control unit 140 is the drive control 1 and the second main body vibration device drive. When the control signal of the control unit 143 is the drive control 2, each control signal is in a state shifted by a half cycle. At this time, FIG. 19A shows that the vibration amount in the pitch direction of the camera body 100 is large at a location close to the grip portion 101 of the camera body 100 and a location on the opposite side of the grip portion 101, and the location between these locations is a distance between them. Although the amount of vibration is relatively small, the threshold is exceeded. In FIG. 19B, the vibration amount in the yaw direction of the camera body 100 is large at a position close to the bottom surface of the camera body 100 and a position near the top surface, and the vibration amount is relatively small at a position away from them. Indicates that the threshold is exceeded.

In the present embodiment, a plurality of vibration devices such as the vibration device 107 and the second vibration device 117 are arranged at a position relatively far from the imaging unit 133, and the drive control of these vibration devices is devised, so that vibration can be achieved. An object of the present invention is to drive control so that the vicinity of the device generates a vibration amount necessary for notifying the user, while the imaging unit far from the vibration device weakens vibration and image blur is reduced.

If it is determined in step S4005 that the vibration amount of the imaging unit 133 is not less than or equal to the predetermined threshold value | ω | and the vibration amount is larger than the predetermined threshold value | ω |, vibration parameter calibration is performed in step S4006. Specifically, with respect to the drive control 1 of the main body vibration device drive control unit 140, the phase of the drive control 2 of the second main body vibration device drive control unit 143 is swept, and the pitch direction blur detection unit 127a and the yaw direction are swept. A phase difference in which the vibration amount of the shake detection unit 127b is equal to or less than a predetermined threshold is searched. By calibrating to the optimum phase difference, the vibration amounts of the pitch direction blur detection unit 127a and the yaw direction blur detection unit 127b in the vicinity of the imaging unit 133 are reduced as shown in FIGS. The predetermined threshold value | ± ω | or less, and the vibration of the imaging unit 133 is reduced.

As a result of the calibration, when the phase difference 135 ° of the drive control signal is determined to be the optimum value as shown in FIG. 18B, the vibration parameter A in FIG. 17 is updated to the calibration result 135 ° in step S4007. To do.

On the other hand, if it is determined in step S4005 that the vibration amount of the imaging unit 133 is equal to or smaller than the predetermined threshold value | ± ω |, it is assumed that the vibration in the vicinity of the imaging unit 133 has already been reduced, and the vibration parameter is not calibrated. The flow ends.

If it is determined in step S4003 that the operation is not a shooting operation, it is not necessary to reduce image blurring of the imaging unit 133. Therefore, in step S4008, a single vibrating device is used as in the first to third embodiments. Is used to notify the user and the flow ends.

In the present embodiment, the strobe 1 is described as an example of the accessory. However, the calibration described above is performed similarly for the accessories after the vibration parameter B shown in FIG.

As described above, in the case of user notification by the vibration device, the image pickup unit that is far from the vibration device while causing the amount of vibration necessary for user notification in the vicinity of the vibration device with respect to image blurring caused by the vibration of the image pickup unit By reducing the vibration and controlling the drive so that the image blur is reduced, it is possible to achieve both user notification and image blur reduction.
[Other Examples]
The present invention supplies a program that realizes one or more functions of the above-described embodiments to a system or apparatus via a network or a storage medium, and one or more processors in a computer of the system or apparatus read and execute the program This process can be realized. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary. In other words, the present invention can be implemented in various modes without departing from the technical idea or the main features thereof. Also, the embodiments described so far can be implemented in various combinations.

Claims

An electronic device to which an external device is detachably attached,
A control unit that vibrates a vibration device provided in at least one of the electronic device and the external device, using a vibration parameter corresponding to a type of the external device attached to the electronic device. Electronic equipment.
A detection unit that outputs a detection signal indicating that an external device is attached to the electronic device;
The said control part vibrates the said vibration device using the vibration parameter corresponding to the kind of external apparatus attached to the said electronic device, when the said detection signal is acquired. Electronic equipment.
The control unit vibrates the vibration device using a vibration parameter corresponding to a type of an external device attached to the electronic device acquired from management data regarding a vibration parameter of the vibration device. The electronic device according to claim 2.
A storage unit for storing the management data;
The said control part vibrates the said vibration device using the vibration parameter corresponding to the kind of external apparatus attached to the said electronic device acquired from the said management data. Electronics.
The control unit uses the vibration parameter corresponding to the type of the external device attached to the electronic device acquired from the management data stored in the external device attached to the electronic device, and The electronic apparatus according to claim 3, wherein the electronic apparatus is vibrated.
The control unit is acquired by causing the vibration device to perform calibration to generate vibration when the management data does not store vibration parameters corresponding to the type of external device attached to the electronic device. The electronic device according to claim 3, wherein the vibration device is vibrated using a vibration parameter corresponding to a type of an external device attached to the electronic device.
The electronic device according to claim 6, wherein the control unit adds the vibration parameter acquired by the calibration to the management data.
When the power of the electronic device is turned on, the control unit obtains vibration corresponding to the type of external device attached to the electronic device, which is obtained by performing calibration that causes the vibration device to generate vibration. The electronic apparatus according to claim 1, wherein the vibration device is vibrated using a parameter.
A vibration detection unit for detecting vibration of the vibration device;
The said control part acquires the vibration parameter corresponding to the kind of external apparatus attached to the said electronic device based on the detection result which detected the vibration by the said calibration by the said vibration detection part. Item 9. The electronic device according to any one of Items 6 to 8.
10. The electronic apparatus according to claim 6, further comprising a storage unit that stores the vibration parameter acquired by the calibration.
A vibration detection unit for detecting vibration of the vibration device;
A storage unit that stores a detection result of the vibration detection unit;
When the difference between the detection result of the vibration detection unit for the previous vibration of the vibration device and the detection result of the vibration detection unit for the current vibration of the vibration device is greater than a predetermined value, the control unit is based on the difference. 11. The electronic device according to claim 1, wherein a vibration parameter corresponding to a type of external device attached to the electronic device is corrected.
12. The electronic apparatus according to claim 11, wherein the control unit periodically vibrates the vibration device.
The electronic device according to claim 11 or 12, wherein the vibration detection unit is capable of detecting camera shake of the electronic device.
A first electronic device;
A second electronic device to which the first electronic device is detachably attached,
At least one of the first electronic device and the second electronic device includes a vibration device that generates vibration,
The first electronic device is provided with a control unit that vibrates the vibration device using a vibration parameter corresponding to a type of the second electronic device.
15. The electronic apparatus according to claim 1, wherein the vibration parameter includes at least one of vibration frequency, amplitude, and duration.
An optical element;
An optical apparatus comprising: the electronic apparatus according to claim 1.
An image sensor that converts an optical image of a subject into an electrical signal by photoelectric conversion;
An imaging apparatus comprising: the electronic device according to claim 1.
An electronic device control method in which an external device is detachably attached,
An external device is attached to the electronic device;
Vibrating a vibration device provided in at least one of the electronic device and the external device using a vibration parameter corresponding to a type of the external device attached to the electronic device. Control method of electronic equipment.
An electronic device control method in which an external device is detachably attached,
The electronic apparatus includes a plurality of vibration devices, an imaging unit for imaging a subject, and the vibration detection unit arranged in the vicinity of the imaging unit,
A method for controlling an electronic apparatus, comprising: calibrating vibration parameters of the plurality of vibration devices so that a vibration amount of the vibration detection unit is equal to or less than a predetermined threshold value.
20. The electronic device control method according to claim 19, wherein the electronic device calibrates vibration parameters by controlling a phase difference between drive signals of the plurality of vibration devices.
21. The method for controlling an electronic device according to claim 19, wherein the electronic device calibrates vibration parameters of the plurality of vibration devices when the imaging unit is operated.
A program used in an electronic device to which an external device is detachably attached,
An external device is attached to the electronic device;
Causing a computer to execute a step of vibrating a vibration device provided in at least one of the electronic device and the external device using a vibration parameter corresponding to a type of the external device attached to the electronic device. A featured program.