JP2012114875A - Electronic apparatus provided with wireless communication function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stabilize a communication quality and prevent breakage due to physical contact between apparatuses during proximate communication and to properly switch a form and an operation mode during communication by the apparatuses without complicated operation.SOLUTION: An electronic apparatus with a wireless communication function is provided with: detection means which has a movable part varying in position by a drive part and detecting that the apparatus is at a distance where communication is possible with an external device; and a control unit which controls the drive part to drive in accordance with the detection result obtained by the detection means. In another embodiment, the apparatus is provided with: first detection means which detects that the communication means is at a distance where communication is possible with the opposite device; a movable part movable to at least two positions; second detection means which detects the position; and a control unit which controls the communication means in accordance with the results of the detection by the first and second detection means.

Description

  The present invention relates to an electronic device having a wireless communication function, particularly a proximity communication function.

  Some mobile devices such as digital cameras have a wireless communication function.

  As wireless communication means, there is a communication method corresponding to a short distance to a medium distance such as Bluetooth and IrDA, which enables communication over a relatively long distance like so-called WiFi.

  As communication operation modes, for example, in WiFi, there are an ad hoc mode for performing one-to-one communication between devices, and an infrastructure mode for enabling one-to-many communication via an access point.

  These wireless communication methods require a procedure such as authentication in order to perform communication. For this purpose, it is necessary to make complicated settings in advance in the device. Further, if the radio wave output is increased to increase the communication distance, there is a disadvantage in terms of power consumption, and there is a problem in communication security commonly called wiretapping. Furthermore, it is difficult to understand which device is communicating, and there is inconvenience in terms of management and maintenance.

In recent years, proximity communication technology that specializes in communication distance is attracting attention. For example, NFC (Near
There is a communication standard called Field Communication.

  Such a proximity communication technique can obtain the following ease of use by limiting the communication distance to about several centimeters to several tens of centimeters. First, a direct act of bringing devices that want to communicate closer together can be a trigger for starting communication. Next, since the communicable range is narrow, it is easy to prevent communication contents from being read, that is, access commonly known as eavesdropping. These advantages are expected to eliminate the need for complicated initial settings and security settings. In addition, by limiting the communication conditions to close peer-to-peer communication, it is expected that large amounts of data can be transmitted at high speed while using weak radio waves.

  Moreover, in an electronic device provided with a wireless communication function, there is one that changes the form of the device as it shifts to a communicable state in order to realize more stable communication (see Patent Document 1 and Patent Document 2). .

JP-A-8-139630 JP-A-9-81269

  In either case, when not in use, portability is improved by folding the device into a compact form. The antenna used for communication is also housed inside the equipment. At the time of use, the communication antenna is extended to shift to a communicable state in conjunction with the deployment and deformation of the folded device.

  The above-described proximity communication technology requires that devices that want to communicate with each other be placed in close contact with each other or at a distance of several centimeters. Since it is conceivable that physical contact is made between the communication devices, it is necessary to consider so as not to cause damage. In addition, in order not to impair the intuitive and simple operability that enables communication by bringing devices close to each other, it is required to switch the communication mode and operation mode of the devices appropriately without requiring complicated operations. .

In order to solve the above problems, an electronic device having a wireless communication function in the present invention is
A detecting unit having a movable unit whose position is changed by the driving unit and detecting that the communication unit is communicable with an external device; and a control unit for controlling the driving of the driving unit according to a detection result of the detecting unit. Prepare.

  Alternatively, it has a protective member for a functional part whose position is changed by the drive unit, and detects that the communication unit is communicable with an external device, and drives the drive unit according to the detection result of the detection unit. A control unit.

  In particular, it is characterized by comprising a detecting means for detecting that the distance is communicable with the counterpart device.

In particular, a camera having a lens barrel mechanism that can be extended and contracted by a drive unit,
A detection unit that detects that communication with an external device is possible, and a control unit that drives and controls the lens barrel driving unit according to a detection result of the detection unit.

Alternatively, a camera having an optical auxiliary device that can be freely moved by a drive unit,
A detection unit that detects that communication with an external device is possible, and a control unit that drives and controls the drive unit of the optical auxiliary device according to the detection result of the detection unit.

Alternatively, a camera having a barrier mechanism that protects the lens surface driven by the drive unit,
A detection unit configured to detect that communication with an external device is possible; and a control unit configured to drive and control the barrier mechanism driving unit according to a detection result of the detection unit.

  Alternatively, an electronic device having a wireless communication function according to the present invention has first detection means for detecting that the communication means is in a state in which communication with a counterpart device is possible, and a movable portion that can move to at least two positions. And a second detection means for detecting the position of the movable part, and a control part for controlling the communication means according to the detection results of the first and second detection means.

In particular, it is characterized by comprising a detecting means for detecting that the distance is communicable with the counterpart device.
In particular, the display device is provided with movably attached to at least two positions with respect to the main body, and the position of the display device is detected by the detection device.

  As described above, according to the present invention, in an electronic device having a wireless communication function, it is possible to communicate by detecting that it is communicable with an external device and changing the position of the movable unit by the driving unit. Transition to a suitable device configuration.

  Alternatively, it is detected that communication with an external device is possible, and the position of the protection member is changed by the driving unit to protect the functional part.

  In particular, in proximity communication approaching a counterpart device, convenience is improved by storing or protecting a part that becomes an obstacle to bringing the devices closer to each other.

  In the camera, the lens barrel and other optical auxiliary devices of the retractable camera are detected to be in a state where they can communicate with an external device, and are shifted to a form suitable for proximity communication, specifically, a storage state. . Alternatively, the lens surface is protected by detecting that the barrier mechanism that protects the lens surface is in a state in which communication with an external device is possible, thereby protecting the lens surface.

  Alternatively, by detecting that the communication means is in a state in which communication with the counterpart device is possible, further detecting the position of the movable part provided in the device main body, and controlling the communication means according to both detection results, the device main body Control such as allowing communication when in an appropriate form is possible.

  In particular, when the display means is movably attached, it is easy for the user to understand whether the communication is enabled or disabled depending on the position of the display means. It is easy to prevent data transmission and security is improved.

It is a photography mode of a digital camera in a first embodiment, and a front external view. It is a non-shooting mode and a front external view of the digital camera in the first embodiment. 1 is a rear external view of a digital camera according to a first embodiment. It is a block diagram of the digital camera in a first embodiment. It is a 1st figure showing a mode that the digital camera in 1st embodiment transfers to communication mode. It is a 2nd figure showing a mode that the digital camera in 1st embodiment transfers to communication mode. It is a 3rd figure showing a mode that the digital camera in 1st embodiment transfers to communication mode. It is a figure showing the mode in communication of the digital camera in 1st embodiment. It is a flowchart regarding communication mode transition of the digital camera in the first embodiment. It is a front external view of the video camera in a second embodiment. It is a back external view of the video camera in a second embodiment. It is the external view which accommodated the LCD monitor of the video camera in 2nd embodiment. It is the external view which accommodated the LCD screen of the video camera in 2nd embodiment facing outward. It is an external view of the video camera in 2nd embodiment. It is a block diagram of the video camera in a second embodiment. It is a figure showing the mode at the time of communication by the two video cameras in 2nd embodiment. It is a flowchart regarding communication mode transition of the video camera in the second embodiment.

  Now, embodiments of the present invention will be described.

  As a first embodiment, an example in which a digital camera having a near field communication function is shifted to a communication mode when placed in a communicable range will be described.

  As a second embodiment, an example will be described in which, in a video camera having the proximity communication function, the operation mode is switched according to the state of the movable part of the device when the video camera is arranged in the communicable range.

[Example 1]
1, 2 and 3 show the external appearance of the digital camera 101 of this embodiment.

  FIG. 4 is a block diagram showing the configuration of the digital camera 101.

  FIG. 1 shows a form at the time of photographing with the digital camera 101. FIG. 2 shows a form when the digital camera 101 is not photographed. FIG. 3 shows the back of the digital camera 101.

  The digital camera 101 has a substantially rectangular parallelepiped housing, and the imaging lens unit 102 extends from one surface of the housing (hereinafter referred to as the front surface of the digital camera 101). The lens barrel 102 is composed of a plurality of cylindrical members, which are interlocked and expanded by a cam mechanism driven by a motor 401 to form a zooming mechanism. In addition, when not photographing, the lens barrel 102 is contracted and housed in the housing (FIG. 2) to protect the lens portion and improve portability. This is well known as a so-called retractable lens. When the lens barrel 102 is housed, the barrier 201 covers the lens 103 and protects the lens 103 from scratches and dirt (FIG. 2). The barrier 201 covers the entire lens 103 by a combination of a plurality of wing-like members configured to be movable in and out in conjunction with the cam mechanism described above.

  On the surface on which the lens barrel 102 is arranged, optical auxiliary devices such as a flash light emitting unit 104 and an AF (autofocus) auxiliary light emitting unit 105 are arranged.

  On the back of the digital camera 101, that is, on the opposite side of the lens arrangement surface, there are an LCD monitor 301 as a display device for monitoring images, a mode switch 302 for switching the operation mode of the digital camera 101, and operation buttons 303 for performing various settings. Arranged (FIG. 3).

  On the top surface of the digital camera 101, there are a power switch 106 for turning on / off the power, a zoom lever 107 for driving a zooming mechanism and operating a shooting angle of view, and a release switch 108 for instructing image shooting. Be placed.

  As shown in FIG. 4, a signal generated by operating each operation member of the digital camera 101 is input to the control unit 402, and the control unit 402 drives and controls each unit of the digital camera 101 according to the input signal.

  For example, by operating the power switch 106, a predetermined signal is input to the control unit 402, and the control unit 402 is activated. Next, the control unit 402 detects the state of the mode switch 302 and controls each unit according to a set operation mode, for example, a shooting mode or a playback mode.

  When the mode changeover switch 302 is in the photographing mode, the control unit 402 drives and controls the motor 401 in response to power-on to extend the lens barrel 102. Also, the camera unit including the image sensor 403 is activated to enter a shooting standby state.

Further, the subject image captured by the camera unit is displayed on the LCD monitor 301 as a monitor image.
Further, the recording state of the memory card 405 as a recording medium is detected via the memory control unit 404, and from the remaining capacity, the number of shootable images calculated from the current shooting mode (resolution and compression rate), and the remaining capacity of the battery as a power source. The calculated remaining usable time is superimposed on the monitor image as a character generated by the character generator 406.

  In response to the operation of the release switch 108, the image captured by the camera unit is converted into a predetermined format by the image processing unit 407, and is recorded on the memory card 405 via the memory control unit 404.

  When the mode switch 302 is in the reproduction mode, the lens barrel 102 is retracted. In addition, the control unit 402 accesses the memory control unit 404 and reads the image data recorded from the memory card 405 as a recording medium. The read image data is developed into a predetermined format by the image processing unit 407 and displayed on the LCD monitor 301. Thereafter, the image data recorded in accordance with the user's operation is sequentially read and displayed on the LCD monitor 301.

  In response to the power-off operation, the control unit 402 instructs the memory control unit 404 to end processing. The memory control unit 404 prepares for the removal of the memory card 405 by the user by disconnecting the connection to the memory card 405. If there is data being recorded on the memory card 405, the cutting process is performed after the recording is completed.

  Further, when the lens barrel 102 is extended, it is accommodated, and the barrier 201 is closed in conjunction with the accommodation of the lens portion.

  The LCD monitor 301 is turned off, the power supply to each unit is cut off, and the power-off process ends.

  The digital camera 101 further includes a data transmission / reception unit 408 and an authentication communication unit 409 for wireless communication, which will be described later. The data transmission / reception unit 408 and the authentication communication unit 409 are connected to the control unit 402 and transmit / receive communication data to / from the control unit 402.

  The authentication communication unit 409 emits an ID signal of the digital camera 101 at a predetermined timing and receives an ID signal emitted from a surrounding external device. The control unit 402 is notified of the transmission / reception result of the ID signal. The ID signal uses weak radio waves with a limited reach distance, and therefore, it is determined whether or not there is an external device capable of communicating within a predetermined distance. Further, it is determined from the contents of the ID signal of the counterpart device whether the device can exchange data with the digital camera 101. The determination result is notified to the control unit 402, and the control unit 402 activates the data transmission / reception unit 408, and transitions to an operation mode in which data communication is possible (hereinafter, communication mode).

  In the communication mode, the operation of the camera unit of the digital camera 101 is stopped, and the LCD monitor 301 displays that the communication mode is in effect. Furthermore, the response to the power switch 106 may be prohibited in order to prevent the power from being inadvertently turned off during data communication starting thereafter. Other switches may be switched to response characteristics according to the communication mode. In particular, in the present embodiment, a storage operation of a lens barrel 102 described later is accompanied.

  In the communication mode of the digital camera 101, image data recorded on the memory card 405 is wirelessly transmitted to an external device, or digital data transmitted from the external device is recorded on the memory card 405. Transmission and reception of communication data with an external device may be automatically performed according to predetermined setting contents, or may be based on a user operation. In the present invention, this is arbitrary. The communication data is read / written from / to the memory card 405 from the control unit 402 via the memory control unit 404.

  The data transmission / reception unit 408 and the authentication communication unit 409 include an antenna 109 for transmitting / receiving communication data. The antenna 109 is disposed on the front surface of the digital camera 101. The transmission / reception unit including the antenna 109 is disposed inside the exterior cover and is not exposed to the exterior (indicated by a broken line in FIG. 1). It is preferable to arrange the antenna 109 on the front surface of the digital camera 101, that is, the surface opposite to the LCD monitor 301 so that the communication state can be easily confirmed on the LCD monitor 301 when the antenna 109 is opposed to the communication partner. .

  5 to 8 show changes in the form of the digital camera 101 depending on the distance from the communication partner device.

  FIG. 9 is a flowchart for explaining operations related to data communication of the digital camera 101.

  In the present embodiment, data communication with a flat communication device 501 will be described as an example.

  Reference numeral 501 denotes a reader / writer connected to a personal computer (hereinafter, PC, not shown) by a cable 502, for example. Similar to the digital camera 101, the reader / writer 501 includes an antenna 503, a data transmission / reception unit, and an authentication communication unit, and is controlled by a connected PC to transmit / receive data.

  The communication operation of the digital camera 101 will be described with reference to FIGS. 5 to 8 and 9.

  FIG. 5 shows an initial stage in which the user tries to bring the digital camera 101 closer to the reader / writer 501. The digital camera 101 and the reader / writer 501 are separated from each other by a distance A. At this time, the digital camera 101 and the reader / writer 501 are outside the above-described authentication communication range and cannot identify each other. If the digital camera 101 is in the shooting mode, the lens barrel 102 is extended as shown in FIG.

  Further, when the digital camera 101 is brought closer to the reader / writer 501 and the distance B at which the ID signal can be received is reached (FIG. 6), the other party's ID signal is received, and it is recognized that they are within the communicable range (FIG. 9). , Step 901).

  When the digital camera 101 finds a communication partner within the communicable range, the digital camera 101 shifts to the communication mode.

  When the power of the digital camera 101 is ON (FIG. 9, Step 902) and in the shooting mode (FIG. 9, Step 903), the control unit 402 drives the motor 401 to start the storing operation of the lens barrel 102 (FIG. 9, Step 904). As described above, the barrier 201 is closed in conjunction with the storage of the lens barrel 102. Since the digital camera 101 activates the data transmission / reception unit 408 after the lens barrel 102 is accommodated (FIG. 9, Step 905), the digital camera 101 must be a reader / writer as shown in FIG. 7 until data transmission / reception is started. It will be in the state stably installed on 501.

  In Step 903, when the digital camera 101 is in the playback mode, the lens barrel 102 is housed as described above, so the data transmission / reception unit 408 may be activated immediately (FIG. 9, Step 906).

  Further, when the digital camera 101 is turned off in Step 902, the power is automatically turned on to shift to the communication mode (FIG. 9, Step 907), and the data transmission / reception unit 408 can be activated (FIG. 9, Step 908). .

  When the lens barrel 102 is accommodated and the data transmission / reception unit 408 is activated, data transmission / reception is started. At this time, whether or not the reader / writer 501 is within the communication range is monitored at a predetermined timing (FIG. 9, Step 909). If the reader / writer 501 is within the communication range, data transmission / reception is started (FIG. 9, Step 910), and the communication state is displayed on the LCD monitor 301 (FIG. 8, FIG. 9, Step 911). When the data transmission / reception ends normally (FIG. 9, Step 912), the LCD monitor 301 displays a message indicating the end of communication (FIG. 9, Step 913), and shifts to a standby state.

  If it is detected in Step 912 that data transmission / reception cannot be completed normally, the process returns to Step 909 to retry communication. If the reader / writer 501 is within the communication range at this time, the process proceeds to Step 910 to try again to send and receive data.

  If the reader / writer 501 is not confirmed within the communication range in Step 909, a warning message is displayed on the LCD monitor 301 (FIG. 9, Step 914). If there is no user operation in Step 915, it is confirmed again whether the reader / writer 501 is within the communication range. These steps are repeated as long as there is no user operation. In Step 915, when any operation is performed by the user, the communication mode is canceled, a response according to the user operation is performed, and the process shifts to a standby state.

  As described above, the digital camera 101 shifts to a stable installation state by storing the lens barrel 102 when performing data transmission / reception. Stabilization of the installation state in short-range communication is important for maintaining communication quality, and the risk of the digital camera 101 falling over can also be reduced. In addition, the lens barrel 102 and the lens 103 that are easily damaged can be automatically protected when being brought close to a communication partner, and usability can be improved.

  Even if the lens barrel does not protrude from the main body, the barrier can be closed when shifting to the communication mode. This is also included in the object of the present invention of protecting the lens surface during proximity communication. Further, in addition to the lens barrel shown in the present embodiment, if the structure can be moved in and out of the main body, such as a flash light emitting unit and a distance measuring sensor, the storage state and the protection state when the mode is changed to the communication mode. You may take the structure which shifts to.

  In addition, the data communication medium in the present embodiment is a radio wave, but may be infrared light or light. The antenna 109 described in this embodiment can be replaced with a light projecting / receiving element. In that case, it is desirable to properly face the light emitting and receiving parts of the device in order to maintain communication quality. In particular, in order to remove the obstruction factor of the positioning of the light emitting and receiving unit in the case of proximity communication, the form of the device is changed. That is reasonable.

[Example 2]
10 to 14 show the appearance of the video camera 1001 of this embodiment.

  FIG. 15 is a block diagram showing the system configuration of the video camera 1001.

  The video camera 1001 includes a camera unit 1002 that converts a subject image incident through an imaging optical system into an electrical signal. Further, a signal processing circuit 1501 that superimposes the electric signal and an input signal from the microphone unit 1003 and converts the signal into a predetermined video / audio signal is provided. Further, a recording / reproducing processing circuit 1503 for recording the video / audio signal in the recording memory 1502 is provided. The recording / playback processing circuit 1503 also performs conversion processing for converting the video / audio signal recorded in the recording memory 1502 into a predetermined playback signal.

  The LCD monitor 1004 superimposes the character information generated by the character generator 1504 on the signal sent from the signal processing circuit 1501 or the recording / playback processing circuit 1503 and displays it as an image. The speaker 1505 reproduces the audio signal sent from the recording / reproduction processing circuit 1503.

  The control unit 1506 controls operation of the video camera 1001 and the operation control is performed based on communication with each unit.

  Each part of the video camera 1001 is provided with an operation switch. A power switch 1005 for turning on / off the power of the video camera 1001, a trigger switch 1101 for starting / stopping image recording, a zoom lever 1006 for changing a shooting angle of view, and a mode switching for switching an operation mode of the video camera 1001. A button 1102 and a setting button 1103 for performing various other operation settings are provided.

  The operation switch sends a predetermined signal to the control unit 1506 in accordance with a user operation. The control unit 1506 receives a signal sent from the operation switch, and controls each circuit corresponding to the signal.

  The LCD monitor 1004 is attached to the side of the video camera 1001 via a hinge mechanism 1007, and can change the posture with respect to the video camera 1001 main body.

  The hinge mechanism 1007 includes an opening / closing axis that allows the LCD monitor 1004 to be opened and closed, and a rotation axis that holds the LCD monitor 1004 so as to be rotatable about an axis orthogonal to the opening / closing axis. Further, an opening / closing detection switch 1507 for detecting the opening / closing angle of the LCD monitor 1004 and a rotation detection switch 1508 for detecting the rotation angle are provided. Each detection switch determines whether the opening / closing axis and the rotation axis of the hinge mechanism 1007 exceed a predetermined rotation angle, and sends the result to the control unit 1506 as a signal. In response to the signal, the control unit 1506 performs display control such as turning off the LCD monitor 1004 and inverting the image. The above configuration is well known.

  10 and 11 show the posture when the photographer monitors the photographed image.

  FIG. 12 shows a state in which the LCD screen is stored facing inward, and has the purpose of protecting the LCD screen while improving the portability by making the video camera 1001 a compact form when not in use. At this time, the LCD screen is turned off in response to the signals from the opening / closing detection switch 1507 and the rotation detection switch 1508 described above.

  FIG. 13 shows a state where the LCD screen is stored in the main body with the LCD screen facing outward. At this time, the image displayed on the LCD screen is turned upside down with respect to the posture shown in FIG. 10 in accordance with the signals of the opening / closing detection switch 1507 and the rotation detection switch 1508 described above. Accordingly, the vertical direction of the main body of the video camera 1001 matches the vertical direction of the displayed image. This is a form suitable for viewing recorded video.

  In addition, a battery pack 1008 as a power source of the video camera 1001 is housed in the LCD housing portion.

  Similar to the digital camera 101 in the first embodiment, the video camera 1001 includes a data transmission / reception unit 1509 and an authentication communication unit 1510 for performing close data communication. The data transmission / reception unit 1509 and the authentication communication unit 1510 are connected to the control unit 1506 and transmit / receive communication data to / from the control unit 1506. An antenna 1401 is provided on the side surface of the video camera 1001 main body. This corresponds to the opposite surface of the LCD monitor 1004 mounting surface (FIG. 14), and it is easy for both users to check the communication status on the LCD monitor when transmitting and receiving data with two video cameras as shown in FIG. It is. However, the arrangement of the antenna 1401 is not limited to this. Appropriate placement may be performed depending on the type of device and data transmission / reception.

  The functions of the data transmission / reception unit 1509 and the authentication communication unit 1510 in the video camera 1001 are the same as those of the data transmission / reception unit 408 and the authentication communication unit 409 in the first embodiment. Further, the video camera 1001 includes a communication mode for performing data transmission / reception in the same manner as the digital camera 101 in the first embodiment. For those contents, refer to the description in the first embodiment.

  This video camera 1001 is characterized in that it shifts to the communication mode in accordance with the attitude of the LCD monitor 1004. Hereinafter, a description will be given with reference to FIG.

  The video camera 1001 emits an ID signal at a predetermined timing and monitors whether an ID signal from a device capable of transmitting and receiving data arrives (FIG. 17, Step 1701). If the counterpart device is found in the data transmission / reception range, the process proceeds to Step 1702.

  In step 1702, if the video camera 1001 is powered on, the open / close state of the LCD monitor 1004 is determined by the output of the open / close detection switch 1507 (FIG. 17, Step 1703). In this embodiment, if the power of the video camera 1001 is OFF in Step 1702, the standby is continued. However, the power can be automatically turned ON.

  When the LCD monitor 1004 is in the retracted state in Step 1703, the orientation of the LCD screen is determined from the output of the rotation detection switch 1508 (FIG. 17, Step 1704). At this time, when the LCD screen faces outward, that is, in the posture shown in FIG. 13, the data transmission / reception unit 1509 is activated (FIG. 17, Step 1705). When the LCD screen is inward, that is, in the posture shown in FIG. 12, the standby state is continued.

  On the other hand, in Step 1703, when the LCD monitor 1004 is in the unfolded state, that is, in the posture shown in FIG. 10, a warning message is issued on the LCD screen or with a beep sound (FIG. 17, Step 1706), and the posture of the LCD monitor 1004 is indicated to the user. Prompt to change and stay on standby. Alternatively, the process may proceed to Step 1704 while issuing a warning message.

  After starting the data transmission / reception unit in Step 1705, it is confirmed whether or not the partner device is in a state where data can be transmitted and received. For example, when data transmission / reception is performed with two video cameras 1001 as shown in FIG. 16, the other video camera must also advance to Step 1705 equally.

  If the partner device can send and receive data, the process proceeds to Step 1708. When the partner device is in a state where data cannot be transmitted or received, a warning message indicating that the partner device is not ready is displayed on the LCD screen of the video camera 1001 (FIG. 17, Step 1715). Then, unless the user cancels the communication mode, it waits for the counterpart device to be able to communicate (FIG. 17, Step 1716). If the communication mode is canceled by the user (FIG. 17, Step 1716), the communication mode is canceled and the standby mode is entered.

  If it is determined in step 1707 that the partner device can send and receive data, the process advances to step 1709 to start sending and receiving data. At this time, whether or not the partner device is within the communication range is monitored at a predetermined timing (FIG. 17, Step 1708). When data transmission / reception is started, a communication state is displayed on the LCD monitor 1004 (FIG. 17, Step 1710). When the data transmission / reception ends normally (FIG. 17, Step 1711), the LCD monitor 1004 displays a message indicating the end of communication (FIG. 17, Step 1712) and shifts to a standby state.

  If it is detected in step 1711 that data transmission / reception cannot be completed normally, the flow returns to step 1708 to retry communication. If the counterpart device is within the communication range at this time, the process proceeds to Step 1709 to try data transmission / reception again.

  If the partner device is not confirmed within the communication range in Step 1708, a warning message is displayed on the LCD monitor 1004 (FIG. 17, Step 1713). If there is no user operation in Step 1714, it is confirmed again whether or not the counterpart device is within the communication range. These steps are repeated as long as there is no user operation. In Step 1714, when any operation is performed by the user, the communication mode is canceled, a response according to the user operation is performed, and a transition is made to the standby state.

  As described above, the video camera 1001 controls the transition to the communication mode according to the attitude of the LCD monitor 1004. That is, data transmission / reception is permitted when the LCD monitor 1004 is in an appropriate posture for monitoring the communication state, and accordingly, the user's intention to transmit / receive data can be determined based on the posture of the LCD monitor 1004. This makes it easier to prevent inadvertent data leakage and increases security.

DESCRIPTION OF SYMBOLS 101 ... Digital camera 102 ... Lens barrel 103 ... Lens 104 ... Flash light emission part 105 ... AF auxiliary light emission part 106 ... Power switch 107 ... Zoom lever 108 ... Release switch 109 ... Antenna 201 ... …… Barrier 301 LCD monitor 302 Mode switch 303 Operation button 401 Motor 402 Control unit 403 Imaging element 404 Memory control unit 405 Memory card 406 Character generator 407 Image processing unit 408 Data transmission / reception unit 409 Authentication communication unit 501 Reader / writer 502 Cable 503 Antenna 1001 Video camera 1002 Camera unit 1003 Microphone unit 1004 LCD monitor 1005 ... Power supply Switch 1006 ... Zoom lever 1007 ... Hinge mechanism 1008 ... Battery pack 1101 ... Trigger switch 1102 ... Mode switch button 1103 ... Setting button 1401 ... Antenna 1501 ... Signal processing circuit 1502 ... Recording memory 1503 ... Recording / playback processing circuit 1504 Character generator 1505 Speaker 1506 Control unit 1507 Open / close detection switch 1508 Rotation detection switch 1509 Data transmission / reception unit 1510 Authentication communication unit

Claims (9)

A wireless communication means for transmitting and receiving data to and from an external device;
Detecting means for detecting that communication with the external device is possible;
A movable part movable to at least two positions;
A drive unit for changing the position of the movable unit;
A control unit that drives and controls the drive unit according to a detection result of the detection unit;
Electronic equipment comprising. A wireless communication means for transmitting and receiving data to and from an external device;
Detecting means for detecting that communication with the external device is possible;
A protective member for protecting the functional part;
A drive unit for moving the protective member to at least two positions;
A control unit that drives and controls the drive unit according to a detection result of the detection unit;
Electronic equipment comprising. Detecting means for detecting that the distance is communicable with the counterpart device;
An electronic device according to claim 1 or claim 2, comprising: Telescopic lens barrel mechanism,
A wireless communication means for transmitting and receiving data to and from an external device;
Detecting means for detecting that communication with the external device is possible;
A drive unit for expanding and contracting the lens barrel mechanism;
A control unit that drives and controls the drive unit according to a detection result of the detection unit;
With a camera. Inviteable optical auxiliary equipment,
A wireless communication means for transmitting and receiving data to and from an external device;
Detecting means for detecting that communication with the external device is possible;
A drive unit for moving the optical auxiliary device in and out;
A control unit that drives and controls the drive unit according to a detection result of the detection unit;
With a camera. A barrier mechanism for protecting the lens surface;
A wireless communication means for transmitting and receiving data to and from an external device;
Detecting means for detecting that communication with the external device is possible;
A drive unit for driving the barrier mechanism;
A control unit that drives and controls the drive unit according to a detection result of the detection unit;
With a camera. A wireless communication means for transmitting and receiving data to and from an external device;
First detection means for detecting that the communication means is in a state in which communication with a counterpart device is possible;
A movable part movable to at least two positions;
Second detection means for detecting the position of the movable part;
A control unit that controls the communication unit according to the detection results of the first and second detection units;
Electronic equipment comprising. First detecting means for detecting that the distance is communicable with the counterpart device;
An electronic apparatus according to claim 7. Display means attached to the main body movably to at least two positions;
Detecting the position of the display means by the second detection means;
The electronic device according to claim 7 or 8, characterized by the above.