JP2002314862A - Digital camera, and its function expansion apparatus and adaptor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a digital camera having a radio communication function for performing stable communication in radio communication environment, the function expansion apparatus of the digital camera, and an adaptor that is used instead of the function expansion apparatus when the radio communication function is not required. SOLUTION: In the digital camera incorporating a radio communication means for performing data communication with other electronic equipment, an antenna 104 is installed at a position for preventing antenna characteristics from being lost when operating a release button 101.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital camera for electrically capturing an image, and more particularly to a digital camera having a wireless communication function, a function expansion device of the digital camera, and an adapter used in place of the function expansion device.

[0002]

2. Description of the Related Art Conventionally, in a digital camera that converts optical information captured through an optical lens into electrical information and records the captured information, a captured electronic image is stored in a nonvolatile memory built in the digital camera or a nonvolatile memory detachable from the digital camera. Record on a memory card, magnetic recording disk, etc.
It is configured to save.

Therefore, when an image file photographed by a digital camera is moved to another device, for example, a personal computer (hereinafter abbreviated as PC) to edit or print the image, a cable is connected to the digital camera. To transfer image files or remove the memory card from the digital camera body, insert it into the memory card slot of the PC, and read the image file, which is troublesome.

In order to transfer image files wirelessly, it is necessary to connect a portable telephone or PHS to a digital camera via a cable, which makes the operation complicated and troublesome.

[0005]

In a conventional digital camera, there is a problem that a user has to perform complicated operations as described above when moving or transferring a photographed image file to another device. Was.

On the other hand, in recent years, digital cameras that incorporate a wireless communication device or that can be easily connected to a wireless communication device as an option have been developed. In the case of a digital camera having such a wireless communication function, when transferring a captured image file, complicated operations such as connecting a cable as described above or removing a memory card and inserting it into a PC are performed. No need, very convenient.

However, when performing wireless communication, it is difficult to maintain a constant wireless communication quality because the antenna characteristics of high-frequency wireless are greatly affected by the positional relationship between the hand of the user operating the digital camera and the antenna. There was a problem that it was difficult. If the user's hand covers the antenna or the hand is close to the antenna, the antenna characteristics will be degraded.As a result, the antenna transmission output will be reduced, the reception sensitivity will be reduced, and directivity will occur. There has been a problem that the transmission time becomes short, a transmission error rate increases, and a problem such as disconnection of communication occurs.

The present invention has been made under such circumstances, and a digital camera with a wireless communication function capable of performing communication in a stable wireless communication environment, a digital camera function expansion transmission device, and wireless communication It is an object of the present invention to provide an adapter used in place of a function expansion device when a function is unnecessary.

[0009]

In order to achieve the above object, according to the present invention, a digital camera is configured as described in the following (1) to (7), and a function expansion device of the digital camera is described in the following (8). Or (32), and the adapter is configured as in (33).

(1) In a digital camera for generating electronic image data from imaging light, a wireless communication means for performing data communication with another electronic device, and an instruction for a user to input an instruction to the digital camera A digital camera, comprising: input means, wherein all or a part of the wireless communication means is arranged at a position where antenna characteristics are not impaired when the instruction input means is operated.

(2) The digital camera according to (1), wherein an antenna included in the wireless communication means is arranged at a position where antenna characteristics are not impaired when the instruction input means is operated.

(3) The digital camera according to (1) or (2), wherein the instruction input means is a release button for instructing photographing.

(4) In the digital camera described in (1) or (2), the instruction input means is a communication instruction button for instructing execution of wireless communication via the wireless communication means. Digital camera.

(5) In the digital camera according to any one of (1) to (4), the position where the antenna characteristics are not impaired when the instruction input means is operated interposes the center line of the digital camera. Wherein the digital camera is a part opposite to the instruction input means.

(6) In the digital camera described in (5), the position where antenna characteristics are not impaired when operating the instruction input means is located on the opposite side of the instruction input means with respect to the center line of the digital camera. And the upper half of the digital camera.

(7) In the digital camera according to any one of the above (1) to (4), the position where antenna characteristics are not impaired when the instruction input means is operated is more digitally located than the instruction input means. A digital camera on the top inside the camera.

(8) A function expansion device for a digital camera, which is mounted on a digital camera for generating electronic image data from imaging light and expands the function of the digital camera,
A wireless communication unit that performs data communication with another electronic device, and when the function expansion device is mounted on a digital camera, all or a part of the wireless communication unit inputs an instruction by a user. A function expansion device for a digital camera which is arranged at a position where antenna characteristics are not impaired when operating an instruction input unit provided in the digital camera.

(9) In the function expansion device for a digital camera described in (8), an antenna included in the wireless communication means is arranged at a position where wireless communication characteristics are not impaired when operating the instruction means. Function expansion device for digital cameras.

(10) The functional expansion device for a digital camera according to the above (8) or (9), wherein the instruction input means is a release button for instructing photographing.

(11) In the function expansion device for a digital camera according to the above (8) or (9), the instruction input means is a communication instruction button for instructing execution of wireless communication via the wireless communication means. Camera function expansion device.

(12) In the function expansion device for a digital camera according to any one of (8) to (10), a position where antenna characteristics are not impaired when the instruction input means is operated is determined by the function expansion device. A function expansion device for a digital camera, which is located on the opposite side of the instruction input means with respect to a center line of the device when the device is mounted on the digital camera.

(13) In the digital camera function expansion device described in (12), the position where the antenna characteristics are not impaired when the instruction input means is operated is determined when the function expansion device is mounted on the digital camera. A function expansion device for a digital camera, which is located on the opposite side of the instruction input means with respect to the center line of the device and on the upper half side of the device.

(14) In the function expansion device for a digital camera according to any one of the above (8) to (13),
A function expansion device for a digital camera, comprising communication means for performing data communication with a mounted digital camera.

(15) The function expansion device for a digital camera according to the above (14), further comprising a connection connector, wherein the device is connected to the digital camera via the connection connector.

(16) In the digital camera function expansion device according to the above (15), the communication means is a digital camera function expansion device for performing data communication by serial communication with the digital camera via the connection connector.

(17) The functional expansion device for a digital camera according to the above (15) or (16), further comprising a power receiving means for receiving power from the attached digital camera via the connection connector. apparatus.

(18) In the function expansion device for a digital camera according to any one of (8) to (17),
A function expansion device for a digital camera including a display unit for displaying an operation state of the function expansion device.

(19) In the function expansion device for a digital camera according to the above (18), the display means is a digital camera comprising one or both of a light emitting element and a display device capable of displaying characters or figures. Function expansion device.

(20) In the function expansion device for a digital camera according to the above (19), the display of the operation state by the display means may be lighting or blinking of the light emitting element by the display means, or characters or graphics on the display device. A digital camera function expansion device that performs any of these displays or a combination thereof.

(21) A function expansion device for a digital camera that can be used by being attached to a digital camera that generates electronic image data from image pickup light and expands the functions of the digital camera. An antenna for performing data communication between the digital camera and an instruction input means for inputting an instruction to the digital camera when the function expansion device is attached to the digital camera, wherein the antenna is provided with the instruction input means. A digital camera function expansion device that is placed at a position where antenna characteristics are not impaired during operation.

(22) A function expansion device for a digital camera that can be used by being attached to a digital camera that generates electronic image data from image pickup light and expands the functions of the digital camera. A wireless communication unit for performing data communication between the digital camera and an instruction input unit for inputting an instruction to the digital camera when the function expansion device is mounted on the digital camera; A function expansion device for a digital camera, a part of which is arranged at a position where antenna characteristics are not impaired when the instruction input means is operated.

(23) In the function expansion device for a digital camera according to the above (22), an antenna included in the wireless communication means is arranged at a position where antenna characteristics are not impaired when the instruction input means is operated. Digital camera function expansion device.

(24) The function expanding device for a digital camera according to any one of the above (21) to (23), wherein the instruction input means is a release button for instructing photographing.

(25) In the function expansion device for a digital camera according to the above (24), the function expansion device can be mounted on the upper surface of the digital camera and is 180 degrees in a plane parallel to the upper surface of the digital camera. A function expansion device for a digital camera, which can be mounted again after rotation.

(26) In the function expansion device for a digital camera according to any one of the above (21) to (25), the position where antenna characteristics are not impaired when the instruction input means is operated is determined by the position of the digital camera. A function expansion device for a digital camera, which is located on a side opposite to the instruction input means with respect to a center line of the device when the function expansion device is mounted on the digital camera.

(27) In the function expansion device for a digital camera according to the above (26), a position where antenna characteristics are not impaired when the instruction input means is operated is determined by the instruction input means with a center line of the device interposed therebetween. A function expansion device for a digital camera, which is on the opposite side of the device and on the upper half side of the device.

(28) In the function expansion device for a digital camera according to any one of (21) to (25), the position where antenna characteristics are not impaired when the instruction input means is operated is determined by the position of the instruction input means. Rather than inside the device when the function expansion device is attached to the digital camera,
Function expansion device for digital camera on top.

(29) In the functional expansion device for a digital camera according to any one of the above (22) to (28), the functional expansion of the digital camera provided with communication means for performing data communication with the mounted digital camera. apparatus.

(30) The functional expansion device for a digital camera according to the above (29), further comprising a connection connector, and connecting to the digital camera via the connection connector.

(31) The function expansion device for a digital camera according to the above (30), wherein the communication means performs data communication by serial communication with the digital camera via the connection connector.

(32) The function expansion device for a digital camera according to the above (30) or (31), further comprising a power receiving means for receiving power supply from the mounted digital camera via the connection connector. apparatus.

(33) An adapter which is attached to a digital camera and used when the wireless communication function is not required, in place of the function expansion device for a digital camera according to claim 22. An adapter with a mechanism that excludes wireless communication means from the digital camera function expansion device.

[0043]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below in detail with reference to examples of a digital camera.

[0044]

(Embodiment 1) FIGS. 1 and 2 are external perspective views of a "digital camera" which is Embodiment 1. FIG. The dotted line in FIGS. 1 and 2 is the outline of the hand when the user holds the digital camera. FIG. 1 is a diagram viewed from the front of a digital camera 100. A release button 101 for instructing photographing is provided on the upper surface of the digital camera, on the right hand side of the user, and next to the release button 101 is automatic photographing, manual photographing of the digital camera, and reproduction of photographed images. A mode selection dial 102 for selecting and instructing various operation modes such as an operation mode, and a small liquid crystal display device 103 for displaying the operation state of the digital camera 100 with characters and pictograms are provided. The release button 101 also functions as a communication instruction button according to the operation settings of the digital camera 100. When the image data is transferred to another electronic device by wireless communication immediately after the photographing, when the user presses the release button to instruct the photographing, the communication operation starts after storing the image data. When the digital camera 100 is in the playback mode, pressing the release button operates to transfer the image being played back to another electronic device by wireless communication. Further, an antenna 104 used when performing wireless communication is provided, and when the user's hand shown by a dotted line in the figure operates the release button, the antenna 104 is in a position not covered by the user's hand or finger. It can be seen that they are arranged.

On the front surface of the digital camera 100, there are provided a flash lamp 105, an aperture 106 of a finder through which a user looks into the image of the subject when taking a picture, and a lens 107 for receiving imaging light.

FIG. 2 is a view from the rear side of the digital camera 100 on which the user operates the digital camera 100. The viewfinder 108 allows the user to look into the object image and check the subject image during photographing, and various operating conditions of the digital camera 100. When a menu item for setting is displayed, a cross-cursor button 109 for selecting a menu item or changing an operation state, an image of a subject to be shot, an image, a menu item, a message, and the like recorded on the digital camera in the playback mode. , A menu button 111 for calling a menu item for setting various operation conditions of the digital camera 100, an enter button for designating an item selected from the menu item, and an operation state of the digital camera 100. There are other buttons to indicate

When the digital camera 100 uses a method of recording a photographed image on a memory card or the like detachable from the main body instead of a secondary storage device such as a flash memory built in the main body, A series of mechanisms for attaching and detaching a memory card, such as a memory card cover and a memory card open lever, not shown, are provided.

Further, on the lower surface of the digital camera 100, a battery cover (not shown) for loading a battery,
A series of mechanisms such as a battery loading opening switch are provided.

Also in FIG. 2, when the user's hand indicated by the dotted line in the figure operates the release button, it can be seen that the antenna 104 is arranged at a position not covered by the user's hand or finger.

Next, the configuration of the digital camera of this embodiment will be described with reference to the drawings. FIG. 3 is a block diagram showing an electrical configuration of the digital camera. Digital camera 1
00 denotes a CPU 201, a ROM 202, a RAM 203,
Wireless communication circuit section 204, antenna 104, imaging section 205, operation section 206, display section 207, secondary storage section 20
8 and are interconnected as shown. The digital camera 100 is connected to the power supply circuit unit 20.
9 for supplying power to each of the blocks.

The CPU 201 operates in accordance with a program stored in the ROM 202 and controls various operations of the digital camera. The ROM 202 is a nonvolatile memory in which control procedures of the digital camera and the like are stored in advance. RA
M203 is used for temporary buffering of digital image data output from the imaging unit 205, temporary storage of data to be written to the secondary storage unit 208 and data read from the secondary storage unit, calculation of the CPU 201, and the like. It is used as an area for temporarily storing a work area, various settings, and the like. The wireless communication circuit unit 204 includes a high-frequency circuit unit required for wireless communication, an encoding / decoding circuit unit, a FIFO memory for wireless communication, and the like.
4 are connected. The imaging unit 205 includes a lens that forms an image of incident light, a photoelectric converter (such as a CCD or a CMOS sensor) that converts the formed light into an electric signal, and converts an analog electric signal output from the photoelectric converter into a digital electric signal. It comprises an AD converter (analog-digital converter) for conversion.

An operation unit 206 includes a release button 101 for instructing photographing, a mode selection dial 102 for selecting an operation mode of the digital camera 100, a menu button 111 for calling a menu item, a cross cursor button 109 for selecting and indicating a menu item, and the like. Buttons, dials,
It is composed of switches, and outputs the states and state changes of these buttons, dials and switches as electric signals. The display unit 207 includes the small liquid crystal display device 103 and the color liquid crystal display device 110. The secondary storage unit 208 stores captured digital image data and the like. There are a configuration having a built-in nonvolatile memory as a secondary storage portion and a configuration having a memory card detachable from the main body as a secondary storage portion, and either configuration may be adopted. The power supply circuit unit 209 includes a battery, a DC / DC converter, and the like, and supplies power to each of the above-described blocks.

Digital camera 100 having the above configuration
Has a function of transmitting a captured digital image to another electronic device by wireless communication. Even in the case where the user performs wireless communication while continuing shooting, in this embodiment, the antenna 104 is disposed at a position far from the hand that operates the release button 101 which also functions as a shooting instruction button and a communication instruction button. Therefore, it is possible to eliminate deterioration of the antenna characteristics due to the influence of the hand and perform communication in a stable wireless communication environment.

(Second Embodiment) In the first embodiment, an example is shown in which the antenna is disposed on the upper surface of the digital camera main body, at the left end when viewed from the user. In the second embodiment, the antenna is disposed at the center of the upper surface of the digital camera. This is an example of arrangement.

FIGS. 4 and 5 are external perspective views of the "digital camera" of the present embodiment. The dotted lines in FIGS. 4 and 5 are the outlines of the hands when the user holds the digital camera. FIG. 4 is a diagram viewed from the front of the digital camera 300 and corresponds to FIG. 1 of the first embodiment. FIG. 5 is a diagram viewed from the rear, which is a side on which the user operates the digital camera 300. Corresponding to FIG. 2 of Example 1, the configuration is the same as that of FIGS. 1 and 2 shown in Example 1 except for the arrangement and shape of the antenna 304.
4 and 5, 300 to 311 are 100 to 1 in FIGS.
11 corresponds to 11 and will not be described. The antenna 304 used when performing wireless communication is provided at substantially the center of the upper surface of the digital camera as shown in FIGS.
When the user's hand indicated by the dotted line in the figure operates the release button which also functions as the photographing instruction button and the communication instruction button, it is understood that the antenna 304 is arranged at a position not covered by the user's hand or finger. Further, in this embodiment, an example of an antenna having a shape different from that of the antenna shown in Embodiment 1 is a chip-shaped antenna or an inverted F-shaped printed pattern formed on a printed circuit board to form an antenna. This is a configuration example when an antenna different from a rod-shaped antenna such as an F-type antenna is used. By arranging the antenna having such a shape at the position shown in the present embodiment, there is an effect that the antenna is not obstructed when looking into the viewfinder.

The electrical configuration of the present embodiment is the same as that of the first embodiment, and the block diagram is the same as that of FIG. 3. Therefore, the description here will be made with reference to the description of the first embodiment. Is omitted.

(Third Embodiment) In the first and second embodiments, an example is shown in which the wireless communication function is built in the digital camera body. In the third embodiment, however, the wireless communication function is provided to the function expansion device of the digital camera. An example in which the digital camera is mounted on a digital camera body and used will be described.

FIGS. 6 and 7 are external perspective views of a digital camera in which a digital camera function expansion device 408 is mounted on a digital camera body 400, which is a "digital camera" of the present embodiment. The dotted line in FIGS. 6 and 7 is the outline of the hand when the user holds the digital camera. FIG. 6 shows a digital camera function expansion device 40 in a digital camera body 400.
8 is a view from the front when the camera 8 is mounted, a release button 401 for instructing photographing on the upper surface of the digital camera, on the right hand side of the user, and next to the button, automatic photographing, manual photographing of the digital camera, and reproduction of the photographed image. Mode selection dial 402 for selecting and instructing various operation modes such as
A small liquid crystal display device 403 for displaying the operation state and the like of the digital camera body 400 with characters and pictograms is provided.

The front of the digital camera body 400 is provided with a flash lamp 405, an opening 406 of a finder through which a user looks into the image of the subject when taking a picture, and a lens 407 for taking in imaging light.

A function expansion device 408 for a digital camera is mounted on the side of the digital camera on which the release button 401 is not arranged. An antenna 404 used for wireless communication is provided on the upper surface of the function expansion device 408 of the digital camera. When the user's hand shown by a dotted line in FIG.
It can be seen that 4 is located at a position not covered by the user's hand or finger.

FIG. 7 shows a function expansion device 4 for a digital camera.
08 is a view seen from the rear side, which is a side operated by the user with the camera 08 mounted on the digital camera body 400. The viewfinder 40 allows the user to look into the image at the time of shooting to check the subject image.
9. When a menu item for setting various operation conditions of the digital camera body 400 is displayed, a cross cursor button 410 for selecting a menu item or changing an operation state;
A color liquid crystal display device 411 for displaying a subject image to be photographed, an image, a menu item, a message, and the like recorded in the digital camera in the playback mode;
In addition to a menu button 412 for calling a menu item for setting various operation conditions of 0, a decision button for indicating an item selected from the menu item and other buttons for indicating an operation state of the digital camera body 400 are also provided.

When the digital camera main body 400 employs a method of recording a photographed image in a memory card or the like which is detachable from the main body, instead of a secondary storage device such as a flash memory built in the main body, Are provided with a series of mechanisms for attaching and detaching a memory card, such as a memory card cover and a memory card open lever, not shown.

Further, on the lower surface of the digital camera body 400, a series of mechanisms such as a battery cover (not shown) for loading a battery and a battery loading opening switch are provided.

A digital camera function expansion device 408 is mounted on the left side of the digital camera body 400.
On the back of the digital camera function expansion device 408, an LED lamp 413 for displaying an operation state of the digital camera function expansion device 408 and a transmission for giving a transmission instruction when transmitting an image file in the digital camera body 400 by wireless communication. An instruction button 414 is provided.

Also in FIG. 7, when the user's hand indicated by the dotted line in the figure operates the release button, it can be seen that the antenna 404 is arranged at a position not covered by the user's hand or finger. Furthermore, the function expansion device 40 of the digital camera
Even when the user operates the transmission instruction button 414 of No. 8 with the left hand, it can be understood that the antenna 404 is arranged at a position not covered by the left hand and the finger of the user.

FIG. 8 and FIG. 9 are diagrams showing a connection portion between the digital camera main body 400 and the function expansion device 408 of the digital camera.

FIG. 8 is a front view of the digital camera shown in FIG.
FIG. 2 is a diagram viewed from the back side of the digital camera.
FIG. 8 shows a function expansion device connection connector 416 and a digital camera connection connector 415 of the function expansion device 408 of the digital camera, which are arranged on the right side when viewed from the front of the digital camera body 400.

FIG. 9 is a view of FIG. 8 as viewed from the back side of the digital camera main body 400. Reference numeral 415 denotes a digital camera connection connector of the function expansion device 408 of the digital camera.

The digital camera body 400 and the digital camera function expansion device 408 are connected by the function expansion device connection connector 416 of the digital camera body 400 and the digital camera connection connector 415 of the digital camera function expansion device 408 shown in FIGS. It is configured to be electrically connected and mechanically mounted and fixed by a mechanical fixing mechanism (not shown).

Next, the configuration of the digital camera of this embodiment will be described with reference to the drawings. FIG. 10 is a block diagram illustrating an electrical configuration of the digital camera according to the present embodiment.

As shown in FIG.
Are a CPU 501, a ROM 502, a RAM 503, an interface circuit unit 504, a function expansion device connection connector 416, an imaging unit 507, an operation unit 508, a display unit 509,
It comprises a secondary storage unit 510 and is connected to each other as shown in the figure. The digital camera body 40
Numeral 0 includes a power supply circuit unit 511, and supplies power to each block.

The CPU 501 operates according to the program stored in the ROM 502 and controls various operations of the digital camera. The ROM 502 is a non-volatile memory in which control procedures of the digital camera and the like are stored in advance. RAM
503 is used for temporary buffering of digital image data output from the imaging unit 506, temporary storage of data to be written to the secondary storage unit 510 and data read from the secondary storage unit 510, calculation of the CPU 501, and the like. It is used as a work area for storing various settings and the like. The interface circuit unit 504 detects that the digital camera function expansion device 408 is connected via the function expansion device connection connector 416, and performs serial data communication when the digital camera function expansion device 408 is connected. CPU 50
In accordance with the control from 1, the function expansion device 4 of the digital camera
08 and data reception. The function expansion device connection connector 416 performs an electrical and mechanical connection with the function expansion device 408 of the digital camera.
The imaging unit 507 includes a lens that forms an image of incident light, and a photoelectric converter (CCD or CMOS) that converts the formed light into an electric signal.
Sensors), an AD converter (analog-digital converter) for converting an analog electric signal output from the photoelectric converter into a digital electric signal, and the like.

An operation unit 508 includes a release button 401 for instructing photographing, a mode selection dial 402 for selecting an operation mode of the digital camera body 400, a menu button 412 for calling a menu item, and a menu item.
It comprises buttons such as a cross cursor button 410 for instructing, a dial, and a switch, and outputs the states and state changes of these buttons, dials, and switches as electric signals.
The display unit 509 includes a small liquid crystal display device 403 and a color liquid crystal display device 411. The secondary storage unit 510 stores captured digital image data and the like. There are a configuration having a built-in nonvolatile memory as a secondary storage portion and a configuration having a memory card detachable from the main body as a secondary storage portion, and either configuration may be adopted. Power supply circuit 51
Reference numeral 1 denotes a battery, a DC / DC converter, and the like, and supplies power to each of the above-described blocks.

FIG. 11 is a block diagram showing the electrical configuration of the function expansion device 408 in this embodiment. The function expansion device 408 includes digital camera connection connectors 415 and C
It comprises a PU 601, a ROM 602, a RAM 603, a wireless communication circuit 604, an antenna 404, an interface circuit 606, an operation unit 607, and a display 608, and are mutually connected as shown. Further, the function expansion device 408 receives supply of power from the digital camera main body 400 via the digital camera connection connector 415, and supplies power to each of the blocks via the power supply circuit unit 609.

The digital camera connection connector 415 connects the function expansion device 408 and the digital camera main body 400. This digital camera connector 415
By fitting the function expansion device connector 416 of the digital camera body 400 to the function expansion device 40,
8 and the digital camera body 400 are electrically and mechanically connected.

The CPU 601 operates according to the program stored in the ROM 602, controls the interface circuit unit 606, and operates the digital camera connector 415.
It controls and manages communication with the digital camera main body 400 connected via the PC, controls the wireless communication circuit unit 604, detects the state of a switch output from the operation unit 607, and controls the display unit 608. The ROM 602 is a nonvolatile memory in which various control procedures and the like of the function expansion device are stored in advance. The RAM 603 is an interface circuit unit 606
And temporary storage of image data read from the digital camera body via the digital camera connection connector 415, data to be written to the wireless communication circuit unit 604,
It is used as a temporary storage of data read from the wireless communication circuit unit 604, a work area used for calculation of the CPU 601, and an area for temporarily storing various settings. The wireless communication circuit unit 604 includes a high-frequency circuit unit required for wireless communication, an encoding / decoding circuit unit, a FIFO memory for wireless communication, and the like.
4 are connected. Interface circuit unit 606
Has a function of detecting whether or not the digital camera main body 400 is connected via the digital camera connection connector 415, and performing a serial data communication with the digital camera main body. Under the control of the CPU 601, data transmission to the digital camera body and reception of data from the digital camera body are performed.

The operation unit 607 includes a switch operated by a transmission instruction button 414 for instructing wireless data transmission to another electronic device.
4 is provided with a function of outputting a pressing operation as a change in an electric signal.

The display unit 608 includes an LED lamp 413 and the like, and has a function of displaying the operation state of the function expansion device 408 and the like. In this embodiment, the wireless communication circuit unit 6
04 has a function of flashing the LED lamp 413 during wireless data communication to notify that data communication is being performed. Further, after the wireless data communication is instructed by the communication instruction button 414, if any inconvenience occurs, for example, the communication is terminated due to an error during the wireless data communication with another electronic device, the lamp flashes to the user. It has a function to notify a warning.

The power supply circuit section 609 has a function of receiving power supply from the connected digital camera body via the digital camera connection connector 415 and supplying power to each block of the function expansion device 408. The power supply circuit unit 609 includes a reset signal generation circuit, and the function expansion device 408 is connected to the digital camera body by the digital camera connection connector 415, receives power supply from the digital camera body, and enables the function expansion device 408. When the instruction to set the function expansion device 408 is issued from the digital camera body, the function expansion device 408 is initialized by the reset signal generation circuit.

Digital camera body 40 having the above-described configuration
The digital camera and the function expansion device 408 of the digital camera have a function of transmitting a captured digital image to another electronic device by wireless communication. According to the present embodiment, even when the user performs wireless communication while continuing shooting, the antenna 4
Since 04 is located far from the hand that operates the release button 401, deterioration of antenna characteristics due to the influence of the hand is eliminated, and communication can be performed in a stable wireless communication environment.
When radio communication is performed by pressing down the communication instruction button 414 provided on the function expansion device 408 of the digital camera after shooting, the communication instruction button 414 is arranged at a position farther than the upper surface on which the antenna 404 is arranged. Therefore, similarly to the operation of the release button 401 described above, the hand that operates the communication instruction button 414 does not cover the antenna 404, so that the deterioration of the antenna characteristics due to the influence of the hand is eliminated, and in a stable wireless communication environment. Communication can be performed.

(Embodiment 4) Embodiments 1 and 2 show an example in which a wireless communication function is built in a digital camera body.
In the above, the example in which the wireless communication function is mounted on the function expansion device of the digital camera and the digital camera body is used by attaching to the digital camera body has been described. It is arranged on the right side when viewed from the side. This is because it is designed on the assumption that the user operates the release button with the right hand. In the fourth embodiment, a digital camera incorporating "universal design" that has recently been attracting attention in the sense of designing a device that is easy for anyone to use, in which the user can change the arrangement of the release button on either the left or right. An example of a digital camera that is designed to be capable and has a built-in wireless communication function will be described.

FIG. 12 is an external perspective view of a “digital camera” 700 according to the fourth embodiment. The dotted line in FIG. 12 is the outline of the right hand when the user holds the digital camera. A release button / antenna unit 708 having a release button 709 and an antenna 710 is mounted on the upper surface of the digital camera.

On the front surface of the digital camera 700, there are provided a flash lamp 705, an opening 706 of a finder through which a user looks into the image of the subject when taking a picture, and a lens 707 for taking in imaging light.

When the release button is operated by the user's right hand indicated by the dotted line in the figure, it can be seen that the antenna 710 is located at a position not covered by the user's hand or finger.

FIG. 13 is an external perspective view showing a state where the release button / antenna unit 708 is removed from the digital camera. In the digital camera, only a portion near the release button / antenna unit 708 is illustrated.

Release button / antenna unit 708
Is composed of a release button bar 711 and an antenna connector 712 in addition to the release button 709 and the antenna 710. The release button bar 711 has a function of transmitting a movement instructed by the user to depress the release button 709 to shoot to the digital camera body. An antenna connector 712 is connected to an antenna connector built in the digital camera and a release button / antenna unit 708.
Is connected to the antenna 710 provided in the. The antenna connector 712 is located on the center axis of the release button / antenna unit 708 and the digital camera as shown.

On the other hand, on the upper surface of the digital camera from which the release button / antenna unit 708 is removed, a right release switch 713 and a left release switch 7 are provided.
14. There is an antenna connector 715. The right release switch 713 is a release button 709 as shown in FIG.
Is used when the release button / antenna unit 708 is attached to the digital camera so that is located on the right hand side of the user. In this case, the left release switch 714 is not used. Release button / antenna unit 708
When the release button is mounted on the left hand side of the user as shown in FIG.
14, the right release switch 713 is not used. The antenna connector 715 is as described above.
It is located on the central axis of digital camera 700. Further, since the right release switch 713 and the left release switch 714 are arranged at target positions sandwiching the central axis of the antenna connector 715, the release button / antenna unit 708 is indicated by an alternate long and short dash line as shown in FIG. When attached to a digital camera by rotating it 180 degrees around
The position of the release button 709 can be switched left and right on the digital camera.

FIG. 14 is a perspective view of the appearance when the release button / antenna unit is mounted so that the release button 709 is on the left hand side as described above.

The digital camera 700 of this embodiment
Is also similar to the digital camera described in the first to third embodiments.
The digital camera 700 is provided with a finder, a cross cursor button, a color liquid crystal display device, a menu button, and the like on a rear surface (not shown). When recording is performed on a memory card that can be used, a memory card cover (not shown) on the side of the main body, a series of mechanisms for attaching and detaching the memory card such as a memory card open lever, a battery cover, a battery loading opening switch, etc. Are provided.

FIG. 15 is a block diagram showing the electrical configuration of the digital camera of this embodiment. Digital camera 700
Are a CPU 721, a ROM 722, a RAM 723, a wireless communication circuit 724, and an antenna connector 71.
5, an imaging unit 725, an operation unit 726, a display unit 727, and a secondary storage unit 728, which are interconnected as shown in the figure. In addition, the digital camera 700 includes a power supply circuit unit 729, and supplies power to each of the blocks. The antenna connector 715 and the operation unit 72 shown in FIG.
6 except the display unit 727 and the display unit 727 are the same as those in the first embodiment.
, Ie, CPU, ROM,
Since they are the same as the RAM, the wireless communication circuit unit, the imaging unit, and the secondary storage unit, the description thereof will be referred to and the description thereof will be omitted.

The antenna connector 715 is fitted with the antenna connector 712 of the release button / antenna unit, and connects the high frequency circuit of the wireless communication unit 724 to the antenna 721.

An operation unit 726 is a release button / release button 70 for instructing photographing of the antenna unit 708.
When the button 9 is pressed, the state of the switch changes. The right release switch 713 and the left release switch 7
14. A menu button for calling a menu item, buttons such as a cross cursor button for selecting and indicating a menu item, a dial, and a switch, not shown in the present embodiment, a dial, and a switch. Output as a signal.

The display section 727 is constituted by a color liquid crystal display device, not shown in this embodiment.

FIG. 16 is a cross-sectional view schematically illustrating the configuration of the release button / antenna unit in this embodiment. The release button / antenna unit 708 includes a release button 709, a release button bar 711 integrated with the release button, an antenna connector 712, an antenna 730, and an antenna cable 731.

This release button / antenna unit 70
8 is mounted on the digital camera 700, when the user presses the release button 709, the release button bar 71
1 operates to press the release switch of the digital camera. When the release button / antenna unit 708 is attached so that the release button 709 is on the right side of the digital camera, the right release switch 71 of the digital camera
When the release button / antenna unit 708 is mounted so that the release button 709 is on the left side of the digital camera, the left release switch 714 of the digital camera is used, but the antenna connector 712 is connected to the digital camera in any case. And the antenna cable is connected.

The digital camera 700 equipped with the release button / antenna unit 708 having the above-described configuration
A function of transmitting the captured digital image to another electronic device by wireless communication. The release button 709 also functions as a communication instruction button according to the operation settings of the digital camera 700. When the image data is transferred to another electronic device by wireless communication immediately after the photographing, when the user presses the release button to instruct the photographing, the communication operation starts after storing the image data. When the digital camera 700 is in the playback mode, pressing the release button operates to transfer the image being played back to another electronic device by wireless communication. The user can place the release button on either the left or right side of the digital camera according to his / her preference, and according to the present embodiment, even if wireless communication is performed while shooting is continued, the release button 709 can be placed on either side of the digital camera. Even if is arranged, the antenna 710 is arranged at a position far from the hand that operates the release button also serving as the photographing instruction button and the communication instruction button, so that the deterioration of the antenna characteristics due to the influence of the hand is eliminated,
Communication can be performed in a stable wireless communication environment.

Fifth Embodiment In the fourth embodiment, an example of a digital camera having a “universal design” wireless communication function relating to a release button has been described. Example 4
In the configuration, the wireless communication circuit unit is built in the digital camera body, and the antenna is built in a “release button / antenna unit” which is a separate unit from the digital camera. This configuration has the advantage that the digital camera has a built-in wireless communication circuit, so the separate unit “release button / antenna unit” can be simplified in structure, but users who rarely use wireless communication However, the wireless communication circuit built into the digital camera has a redundant function.

Therefore, in the fifth embodiment, similar to the fourth embodiment,
While adopting a "universal design" that allows the user to switch the release button position on either side, the wireless communication circuit is built in a separate unit from the digital camera body, so the user can communicate wirelessly. When the wireless communication is performed, a separate unit with a built-in wireless communication circuit is used. When wireless communication is not performed, a unit without a wireless communication circuit (corresponding to the adapter in the claims) can be used.

FIG. 17 is an external perspective view of a “digital camera” 800 according to the fifth embodiment. The dotted line in FIG. 17 is the outline of the right hand when the user holds the digital camera. On the upper surface of the digital camera, a release button 809, an antenna 810, an LED lamp 811 and a transmission instruction button 81
2, a release button / wireless communication unit 808 is mounted.

On the front surface of the digital camera 800, a flash lamp 805, a finder opening 806 and a lens 807 are provided.

When the user's right hand, indicated by the dotted line in the figure, operates the release button, it can be seen that the antenna 810 is located at a position not covered by the user's hand or finger.

FIG. 18 is an external perspective view showing a state where the release button / wireless communication unit 808 is removed from the digital camera. The digital camera is shown only near the part where the release button / wireless communication unit 808 is removed.

A release button / wireless communication unit 808 includes a release button 809, an antenna 810,
In addition to the ED lamp 811 and the transmission instruction button 812, a release button bar 813 and a digital camera connector 8
14. The release button bar 813 has a function of transmitting a movement instructed by the user to depress the release button 809 to take an image to the digital camera body. The digital camera connection connector 814 connects the function expansion unit connection connector 817 of the digital camera and the release button / wireless communication unit 808. The digital camera connection connector 814 is located on the central axis of the release button / wireless communication unit 808 and the digital camera as shown, and the shape and pin arrangement of the connector are symmetric with respect to the central axis.

On the other hand, on the upper surface of the digital camera 800 where the release button / wireless communication unit is removed, there are a right release switch 815, a left release switch 816, and a function expansion unit connector 817. Since the left and right release switches 815 and 816 are the same as those of the release switch of the fourth embodiment, the description is omitted here.

The function expansion unit connection connector 817 is located on the central axis of the digital camera 800 as described above. Since the right release switch 815 and the left release switch 816 are arranged symmetrically with respect to the central axis of the function expansion unit connector 817, FIG.
When the release button / wireless communication unit 808 is mounted on the digital camera by rotating the release button / wireless communication unit 808 by 180 degrees about the axis indicated by the alternate long and short dash line as shown in FIG. Can be replaced.

FIG. 19 is an external perspective view when the release button / wireless communication unit is mounted so that the release button 809 is on the left hand side as described above.

Note that the digital camera 800 of this embodiment is
Is also similar to the digital camera described in the first to third embodiments.
The digital camera 800 is provided with a finder, a cross cursor button, a color liquid crystal display device, a menu button, and the like on a rear surface (not shown), and the digital camera 800 is detachable from the main body instead of a secondary storage device such as a flash memory built in the main body. When recording is performed on a memory card that can be used, a memory card cover (not shown) on the side of the main body, a series of mechanisms for attaching and detaching the memory card such as a memory card open lever, a battery cover, a battery loading opening switch, etc. Are provided.

The block diagram showing the electrical configuration of the digital camera of this embodiment is the same as that of FIG. 10 which is a block diagram showing the electrical configuration of the third embodiment, and will be described with reference to FIG.

The digital camera 800 is the same as the third embodiment except for the configuration of the operation unit 508 and the display unit 509. Therefore, the description of the third embodiment is referred to and the description is omitted here.

When the release button 809 for instructing the photographing of the release button / wireless communication unit 808 is pressed, the operation unit 508 changes the state of the switches. The right release switch 815 and the left release switch 816, in this embodiment, It is comprised of buttons, dials, and switches (not shown) such as a menu button for calling a menu item, a cross cursor button for selecting and indicating a menu item, and outputs the states and state changes of these buttons, dials, and switches as electric signals.

The display section 509 is constituted by a color liquid crystal display (not shown) in this embodiment.

FIG. 20 is a cross-sectional view schematically illustrating the configuration of the release button / wireless communication unit 808 in this embodiment. A release button / wireless communication unit main body 808 includes a release button 809, an antenna 810, a transmission instruction button 811, an LED lamp 812,
Release button bar 81 integrated with release button
3, digital camera connector 814, operation unit 82
0, a power supply section 821, a control section 822, and a wireless communication circuit section 823.

When the release button / wireless communication unit 808 is attached to the digital camera 800 and the user presses the release button 809, the release button bar 813 operates to press the release switch of the digital camera. When the release button / wireless communication unit 808 is attached so that the release button 809 is on the right side of the digital camera, the right release switch 815 of the digital camera is used, and the release button / wireless communication is set so that the release button 809 is on the left side of the digital camera. When the communication unit is mounted, the left release switch 816 of the digital camera is used, but the digital camera connection connector 814 is fitted to the function expansion unit connection connector 817 of the digital camera in any case.

As described above, since the digital camera connection connector 814 and the connection connector 817 must connect signals in the same manner even when rotated by 180 degrees, the pin arrangement of the connectors is such that the center points of the connectors are arranged symmetrically. Become. FIG. 21 shows an example of the pin arrangement of the connector. The figure schematically shows the pin arrangement of the connector, and is an image viewed from directly above or directly below the joint surface of the connector. The figure shows an example of a 16-pin connector, and reference numerals 831 to 846 denote pins of the connector. The alphabet in the rectangle indicates the type of signal wired to the connector.
Different types of signals can be wired. By wiring as shown in the drawing, each pin of the connector can be connected to the same type of signal even if the connector is rotated 180 degrees about the intersection of the dashed line indicating the vertical and horizontal center lines of the connector. For example, when the pin 831 is rotated by 180 degrees, it comes to the position of the pin 846, and both are connected to the signal A. Pin 832 comes to pin 845 and connects to signal B, pin 833 comes to pin 844 and signal C
Connect with

A block diagram showing the electrical configuration of the release button / wireless communication unit 808 is shown in the third embodiment.
Since FIG. 11 is the same as FIG. 11, detailed description is omitted. FIG.
The control unit 822 of FIG.
02, a RAM 603, and an interface circuit unit 606. The LED lamp 812 corresponds to the display unit 608, and the power supply unit 821 corresponds to the power supply circuit unit 609.

The digital camera 80 equipped with the release button / wireless communication unit 808 having the above-described configuration
No. 0 has a function of transmitting a photographed digital image to another electronic device by wireless communication. The user can arrange the release button on either side of the digital camera according to his / her preference. In addition, according to the present embodiment, when performing wireless communication while continuing shooting, the release button 809 is arranged on either side of the digital camera. However, since the antenna 810 is arranged at a position far from the hand that operates the release button, deterioration of wireless communication characteristics due to the influence of the hand is eliminated, and communication can be performed in a stable wireless communication environment. In addition, the user can use a separate unit with a built-in wireless communication circuit when performing wireless communication, and use a unit without a built-in wireless communication circuit when not performing wireless communication. There is also an effect.

Further, in the present embodiment, the release button 809 provided in the function expansion device of the digital camera is a mechanical release mechanism, and the right release switch 81 of the digital camera is used.
5 or the left release switch 816 is depressed, but the depression of the release button 809 is detected by the operation unit 820 of the function expansion device of the digital camera, and the digital camera connection connector 814 is detected as a change in the electric signal. It is also possible to adopt a configuration in which the digital camera main body is notified via the digital camera main body via the digital camera main body to start the imaging operation processing. This configuration has the advantage that the left and right release switches of the digital camera body are not required.

The form of the antenna shown in each of the above embodiments is not limited to the form, but may be a helical antenna, a dipole antenna, a small chip antenna, or an antenna formed of a printed pattern formed on a printed circuit board. Whatever the configuration of the antenna, such as an inverted F-type antenna,
It is needless to say that the arrangement is effective if it is arranged at the position shown in each embodiment. In the fourth and fifth embodiments, the antenna is arranged on the side opposite to the release button. However, as in the second embodiment, the antenna is arranged at the center of the release button / antenna unit and the release button / wireless communication unit. You can also.

[0119]

As described above, according to the present invention,
Communication can be performed in a stable wireless communication environment.

Furthermore, in the invention according to any one of claims 8 to 20, since the wireless communication function is mounted on the function expansion device of the digital camera and used externally to the digital camera main body, the wireless communication function is provided. The function and configuration of the digital camera can be selected according to the necessity of communication.

Further, since the invention described in claim 25 adopts a "universal design" in which the user can change the arrangement of the release button on either side, it is convenient for a left-handed person.

Further, in the invention according to claim 33, since the mechanism is such that the wireless communication means is removed from the function expansion device according to claim 22, when wireless communication is not necessary,
It can be used in place of the function expansion device according to claim 22,
The function and configuration of the digital camera can be selected according to the necessity of wireless communication.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a first embodiment.

FIG. 2 is an external perspective view of the first embodiment.

FIG. 3 is a block diagram illustrating an electrical configuration of the first embodiment.

FIG. 4 is an external perspective view of a second embodiment.

FIG. 5 is an external perspective view of a second embodiment.

FIG. 6 is an external perspective view of a third embodiment.

FIG. 7 is an external perspective view of a third embodiment.

FIG. 8 is a diagram showing a connection portion between the digital camera body and the digital camera function expansion device.

FIG. 9 is a diagram showing a connection portion between the digital camera body and the digital camera function expansion device.

FIG. 10 is a block diagram illustrating an electrical configuration of a digital camera body according to a third embodiment.

FIG. 11 is a block diagram illustrating an electrical configuration of a function expansion device according to a third embodiment.

FIG. 12 is an external perspective view of a fourth embodiment.

FIG. 13 is a diagram showing a state in which a release button / antenna unit is removed from the digital camera.

FIG. 14 is an external perspective view when a left release button is used.

FIG. 15 is a block diagram illustrating an electrical configuration according to a fourth embodiment.

FIG. 16 is a sectional view showing a configuration of a release button / antenna unit.

FIG. 17 is an external perspective view of a fifth embodiment.

FIG. 18 is a diagram showing a state in which a release button / wireless communication unit is removed from the digital camera.

FIG. 19 is an external perspective view when the left release button is used.

FIG. 20 is a sectional view showing a configuration of a release button / wireless communication unit.

FIG. 21 schematically shows a pin arrangement of a connector.

[Explanation of symbols]

 100 Digital camera 101 Release button 104 Antenna

Claims (33)

[Claims] 1. A digital camera for generating electronic image data from imaging light, a wireless communication means for performing data communication with another electronic device, and an instruction input for a user to input an instruction to the digital camera. A digital camera, wherein the whole or a part of the wireless communication means is arranged at a position where antenna characteristics are not impaired when the instruction input means is operated. 2. The digital camera according to claim 1, wherein an antenna included in the wireless communication unit is arranged at a position where antenna characteristics are not impaired when the instruction input unit is operated. Digital camera. 3. The digital camera according to claim 1, wherein said instruction input means is a release button for instructing photographing. 4. The digital camera according to claim 1, wherein the instruction input unit is a communication instruction button for instructing execution of wireless communication via the wireless communication unit. 5. The digital camera according to claim 1, wherein a position at which antenna characteristics are not impaired when the instruction input means is operated is the position of the instruction input across a center line of the digital camera. A digital camera characterized by being a part on the opposite side of the means. 6. The digital camera according to claim 5, wherein a position at which antenna characteristics are not impaired when the instruction input means is operated is a part on the opposite side of the instruction input means with respect to a center line of the digital camera. And a digital camera located on the upper half side of the digital camera. 7. The digital camera according to claim 1, wherein a position at which antenna characteristics are not impaired when operating the instruction input means is located on an upper surface inside the digital camera than the instruction input means. A digital camera, characterized in that: 8. A function expansion device for a digital camera that is attached to a digital camera that generates electronic image data from image pickup light and extends the function of the digital camera, and that performs data communication with another electronic device. Wireless communication means for performing the following, when the function expansion device is attached to a digital camera,
All or a part of the wireless communication means, the user inputs an instruction, the digital camera characterized in that the antenna characteristics are not damaged when operating the instruction input means provided in the digital camera, Function expansion device. 9. The function expansion device for a digital camera according to claim 8, wherein an antenna included in the wireless communication unit is arranged at a position where wireless communication characteristics are not impaired when the instruction unit is operated. A feature-enhancing device for digital cameras. 10. The function expansion device for a digital camera according to claim 8, wherein said instruction input means is a release button for instructing photographing. 11. The function expansion device for a digital camera according to claim 8, wherein the instruction input unit is a communication instruction button for instructing execution of wireless communication via the wireless communication unit. Function expansion device for digital cameras. 12. The digital camera function expansion device according to claim 8, wherein a position where antenna characteristics are not impaired when the instruction input means is operated is determined by setting the function expansion device to a digital camera. A function expansion device for a digital camera, which is located on a side opposite to the instruction input means with respect to a center line of a device when the device is mounted on the digital camera. 13. The function expansion device for a digital camera according to claim 12, wherein the position at which the antenna characteristics are not impaired when the instruction input means is operated is a position of a device when the function expansion device is mounted on the digital camera. A function expansion device for a digital camera, which is located on the opposite side of the instruction input means with respect to a center line and on the upper half side of the device. 14. The function expansion device for a digital camera according to claim 8, further comprising a communication unit for performing data communication with the mounted digital camera. Expansion device. 15. The function expansion device for a digital camera according to claim 14, further comprising a connection connector, wherein the connection is established with the digital camera via the connection connector. 16. The function expansion device for a digital camera according to claim 15, wherein the communication unit performs data communication with the digital camera by serial communication via the connection connector. . 17. The function expansion device for a digital camera according to claim 15, further comprising a power receiving unit that receives power from the mounted digital camera via the connection connector. Expansion device. 18. The function expansion device for a digital camera according to claim 8, further comprising a display unit for displaying an operation state of the function expansion device. apparatus. 19. The function expansion device for a digital camera according to claim 18, wherein said display means comprises one or both of a light emitting element and a display device capable of displaying characters or graphics. Function expansion device for digital cameras. 20. The function expansion device for a digital camera according to claim 19, wherein the display of the operation state by the display means is lighting or blinking of the light emitting element by the display means, or display of a character or a graphic on the display device. Or a combination of the above. 21. A function expansion device for a digital camera, which can be used by being attached to a digital camera that generates electronic image data from image pickup light and expands the function of the digital camera, between the electronic camera and another electronic device. An antenna for performing data communication with the digital camera, and instruction input means for inputting an instruction to the digital camera when the function expansion device is attached to the digital camera, wherein the antenna operates the instruction input means. A function expansion device for a digital camera, wherein the function expansion device is arranged at a position where antenna characteristics are not impaired in the case of (1). 22. A function expansion device for a digital camera that can be used by being attached to a digital camera that generates electronic image data from image pickup light and expands the function of the digital camera. Wireless communication means for performing data communication with the digital camera, and instruction input means for inputting an instruction to the digital camera when the function expansion device is attached to the digital camera, wherein all or one of the wireless communication means is provided. A function expansion device for a digital camera, wherein the unit is disposed at a position where antenna characteristics are not impaired when the instruction input means is operated. 23. The function expansion device for a digital camera according to claim 22, wherein the antenna included in the wireless communication unit is arranged at a position where antenna characteristics are not impaired when the instruction input unit is operated. A function expansion device for a digital camera, characterized in that: 24. The function expansion device for a digital camera according to claim 21, wherein the instruction input unit is a release button for instructing photographing. 25. The function expansion device for a digital camera according to claim 24, wherein the function expansion device can be mounted on an upper surface of the digital camera, and rotated 180 degrees in a plane parallel to the upper surface of the digital camera. A function expansion device for a digital camera, wherein the function expansion device can be mounted again. 26. The function expansion device for a digital camera according to claim 21, wherein a position at which antenna characteristics are not impaired when the instruction input means is operated is determined by the function expansion device for the digital camera. A function expansion device for a digital camera, wherein the function expansion device is located on a side opposite to the instruction input means with respect to a center line of the device when mounted on the digital camera. 27. The digital camera function expansion device according to claim 26, wherein a position where antenna characteristics are not impaired when operating the instruction input means is opposite to the instruction input means with a center line of the device interposed therebetween. A function expansion device for a digital camera, wherein the function expansion device is located on a side portion and in an upper half of the device. 28. The function expansion device for a digital camera according to claim 21, wherein a position where antenna characteristics are not impaired when the instruction input means is operated is more digitally located than the instruction input means. A function expansion device for a digital camera, which is an upper surface inside a device when the function expansion device is mounted on a camera. 29. The function expansion device for a digital camera according to claim 22, further comprising communication means for performing data communication with the mounted digital camera. Expansion device. 30. The function expansion device for a digital camera according to claim 29, further comprising a connection connector, wherein the function expansion device is connected to the digital camera via the connection connector. 31. The function expansion device for a digital camera according to claim 30, wherein the communication unit performs data communication with the digital camera by serial communication via the connection connector. . 32. The function of the digital camera according to claim 30, further comprising power receiving means for receiving power from the mounted digital camera via the connection connector. Expansion device. 33. When a wireless communication function is not required,
An adapter used by being attached to a digital camera in place of the function expansion device for a digital camera according to claim 22, characterized by a mechanism excluding wireless communication means from the function expansion device for a digital camera according to claim 22. And adapter.