JP2002320116A - Electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide electronic equipment capable of preventing abnormal interruption of image transfer due to battery consumption or the like. SOLUTION: When a transfer/marking button for instructing the transfer of image data in a memory card to external equipment is operated, transfer time is calculated from the total data capacity and data communicating speed of the image data to be transferred, and an operation enabling time is calculated from a remaining battery. Then, when it is determined that the transfer time is shorter/longer than the operation enabling time, a warning display 71 or possible number of a transfer 73 is displayed at a display LCD 3 of an electronic camera, before the start of transfer. When a transfer switch 72 is operated, the transfer is continued, and when a stop switch 74 is operated, the transfer is stopped. As a result, the transfer of any image whose transfer might be interrupted can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises an image pickup device,
Related to electronic devices that can transfer captured image data to an external device

[0002]

2. Description of the Related Art In an electronic camera such as a digital still camera, photographed image data is recorded in a memory in the camera or a recording medium such as a memory card mounted on the camera. The captured image data is transferred to a PC via a communication cable.
(A personal computer) or the like. In the case of performing such a transfer, it takes a long time to transfer if the data capacity to be transferred is large.

Therefore, if such a transfer operation is performed using a battery built in the electronic camera, the battery may be exhausted and the transfer may be interrupted. When such an interruption occurs, the transfer program may not operate normally. For such a reason, an AC adapter is connected to the electronic camera to perform a transfer operation.

[0004]

However, since the AC adapter is relatively large, it is seldom carried with an electronic camera, and there are many cases where an image transfer is not at hand. In such a case, the transfer operation has to be performed with the built-in battery, and there is a fear that an abnormality may occur due to the interruption of the transfer.

It is an object of the present invention to provide an electronic device capable of preventing abnormal interruption of image transfer due to battery exhaustion or the like.

[0006]

An embodiment of the present invention will be described with reference to FIGS. 2, 3, 10 and 11. FIG. (1) When described in association with FIG. 2, FIG. 3 and FIG.
4, a storage unit 439 for storing image data of an image captured by the imaging unit 214 in the storage medium 424, and an external storage device 2 for storing the image data stored in the storage medium 424.
0, which is applied to the electronic apparatus 1 having transfer means 13 and 448 for transferring the image data to the image data transfer means 13 and 44.
Transfer instruction operation unit 12 for instructing the transfer by the transfer unit 8 and transfer information 6 relating to image data transferred to the external storage device 20
Display means 3 for displaying 0, 66, 67, 68; and control means 439 for displaying the transfer information 60, 66, 67, 68 on the display means 3 and then transferring the image data by the transfer means 13, 448. To achieve the above object. (2) The electronic device 1 according to the first aspect of the present invention.
, The transfer information is the number of frames 66 included in the image data transferred to the external storage device 20. (3) The electronic device 1 according to the first aspect of the present invention.
3. The electronic apparatus according to claim 1, wherein the transfer information is a total data capacity 67 of the image data transferred to the external storage device 20. (4) When described in association with FIG. 2, FIG. 3 and FIG.
4, a storage unit 439 for storing image data of an image captured by the imaging unit 214 in the storage medium 424, and an external storage device 2 for storing the image data stored in the storage medium 424.
0, which is applied to the electronic device 1 provided with the transfer means 13 and 448 for transferring data to the electronic device driving internal battery 45.
6, the remaining capacity detecting means 458 for detecting the remaining capacity of the built-in battery 456, and the operable time of the electronic device based on the remaining capacity detected by the remaining capacity detecting means 458 and the data transfer speed of the transfer means 13 and 448. Transfer time calculation means for calculating the transfer time of image data to be transferred to the external storage device 20 based on the data transfer speed of the transfer means 13 and 448 and the data capacity to be transferred. Means 439 and transfer information 71, 73 indicating that all image data transferred to the external storage device 20 cannot be transferred within the electronic device operable time when the transfer time is longer than the electronic device operable time. Display means 3
To achieve the above object. (5) The invention according to claim 5 is the electronic device 1 according to claim 4.
The external power supply connection terminal 15 to which an external power supply can be connected.
Determining means 457 and 439 for determining whether or not an external power supply is connected to the external power supply connection terminal 15; The display of the information 71 and 73 is permitted, and when the determination means 457 and 439 determine that the external power supply is connected, the transfer information 7 by the display means 3 is displayed.
And control means 439 for prohibiting the display of 1, 73. (5) According to the invention of claim 5, in the electronic device 1 according to any one of claims 1 to 5, the transfer information 60,
When 66 to 68, 71 and 73 are displayed, a selection means 7 for selecting any one of interruption and continuation of the transfer operation
2, 74 are provided.

[0007] In the section of the means for solving the above problems, the drawings of the embodiments of the present invention are used to make the present invention easy to understand, but the present invention is not limited to the embodiments of the present invention. Not something.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B are diagrams showing an embodiment of an electronic device according to the present invention, wherein FIG. 1A is a plan view of the electronic camera 1 as viewed from above, and FIG. 1B is a rear view of the electronic camera 1 as viewed from behind. . As shown in FIG. 1A, the electronic camera 1
A main switch 4 for turning on / off the power, a release button 5 for performing a shooting operation, and a display panel 7 for displaying camera information are provided on the upper surface of the camera. The electronic camera 1 has a recording mode in which image data obtained by photographing a subject is recorded on a memory card 424, which will be described later, and reads out image data recorded on the memory card 424 to display a display LCD 3 (see FIG. 1
(Refer to (b)). The switching operation between the recording mode and the reproduction mode is performed by the dial 6.

As shown in FIG. 1B, in addition to a display LCD 3 for displaying an image, a finder eyepiece window 8 and a zoom switching button 9 for performing a zoom operation of the photographing optical system 2 are provided on the back of the camera. Buttons are provided. When the zoom switch button 9 is pressed on the W side, the photographing optical system 2 is driven to the wide-angle side, and when the T side is pressed, it is driven to the telephoto side. In the recording mode, a CCD 214 described later
Are sequentially displayed on the display LCD 3. On the other hand, in the reproduction mode, the display LCD 3 performs thumbnail display of images recorded on the memory card 424 described later, reproduction display of individual images, and the like.

Reference numeral 10 denotes a menu button for displaying a setting menu on the display LCD 3. When various settings are made, the setting menu is displayed and selection buttons 11a to 11d are displayed.
Select the item to be set with. In the present embodiment,
The setting menu allows setting and canceling of transfer marking in the recording mode, setting and canceling of transfer marking in batch in the reproduction mode, setting of re-transfer, and the like, which will be described later. Details of each setting will be described later. The transfer / marking button 12 is an operation button used when adding a transfer marking for each image file and when starting image file transfer.

The transfer / marking button 12 functions as a transfer button when a USB communication cable 21 (see FIG. 5 described later) is connected to the USB connection terminal 13, and the USB communication cable 21 is disconnected. And function as a marking button. 14 is a memory card 424
A delete button for deleting an image file recorded in (see FIG. 2). Reference numeral 15 denotes an external power supply connection terminal for connecting an AC adapter (not shown). The connection / disconnection of the AC adapter to the external power supply connection terminal 15 is detected by a detection device 457 (see FIG. 2). The USB connection terminal 13 and the external power supply connection terminal 15 are provided inside the cover 16.
3, 15 are exposed.

FIG. 2 is a circuit block diagram of the electronic camera shown in FIG. The control program for the electronic camera 1 is stored in the ROM 443. When the main switch 4 is turned on, the power of the electronic camera 1 is turned on, and the control program is started by the CPU 439. When the recording mode is set by the dial 6, the electronic camera 1 can take a picture. On the other hand, when the reproduction mode is set by the dial 6, an image based on the image data recorded on the memory card 424 as the recording medium can be reproduced and displayed on the display LCD 3. In the recording mode, C
An image based on the imaging signal from the CD 214 is displayed on the LCD 3
Will be displayed.

The photographing optical system 2 includes a plurality of lenses 201 to 20.
4, and the focus adjustment operation is performed by the lens driving circuit 430.
It is performed by The focus adjustment operation by the lens drive circuit 430 is normally performed by a command from the CPU 439, but the focus adjustment operation can also be performed by an operation signal output when the distance ring 462 is manually operated.

The lens 203 and the lens 20 of the photographing optical system 2
4, a shutter plate 208 and a stop 215 are provided. The subject light incident on the photographing optical system 2 includes lenses 201 to 204, a shutter plate 208, and an aperture plate 2.
15 and is imaged on the imaging surface of the CCD 214.
The aperture plate 215 and the shutter plate 208 are formed in a disk shape, and are driven by step motors 415 and 408 provided at the rotation center of the disk, respectively. Aperture plate 21
5 is provided with a plurality of aperture openings (not shown) having different opening areas.
Is rotated to dispose one arbitrary aperture on the optical axis.

The shutter plate 208 is provided with a complete light blocking portion (not shown) for blocking all light beams passing through the lens 203, and an opening (not shown) for passing all light beams. At the time of exposure, the opening of the shutter plate 208 is set on the optical path, and at the end of the exposure, the complete light shielding section is set on the optical path. Step motor 4 for rotating aperture plate 215
15 is driven and controlled by a drive circuit 453. The drive of the step motor 408 that rotates the shutter plate 208 is controlled by a shutter drive circuit 454.

At the time of photographing, first, the electric charge stored in the CCD 214 is discharged, and a predetermined opening of the aperture plate 215 is set on the optical path. And CCD
When the 214 is exposed for a predetermined time, electric charges are accumulated again.
The time from the discharge of the electric charge until the light path is shielded again by the complete light shielding portion of the shutter plate 208 corresponds to the exposure time.

When a subject image is formed on the image pickup surface of the CCD 214 by the photographing optical system 2, signal charges corresponding to the intensity of light of the subject image are accumulated. The CCD 214 is supplied with a horizontal drive signal from a digital signal processor (hereinafter referred to as DSP) 433 and a vertical drive signal from a CCD drive circuit 434 controlled by the DSP 433. That is, the timing of the CCD 214 is controlled by the DSP 433 and the CCD drive circuit 434,
The signal from the CD 214 is input to the image processing unit 431.

The image processing unit 431 has a noise removal circuit, a DC reproduction circuit, and the like, and performs analog processing such as noise removal and gain control on the image signal output from the CCD 214. The analog image signal output from the image processing unit 431 is converted into a digital signal by an analog / digital conversion circuit (hereinafter, referred to as an A / D conversion circuit) 432. The converted digital image data is input to the DSP 433 described above.

In the DSP 433, an A / D conversion circuit 432
Is subjected to image processing such as contour compensation, gamma correction, and white balance adjustment.
The DSP 433 controls a data bus connected to the buffer memory 436 and the memory card 424, and temporarily stores the image data on which various image processing has been performed in the buffer memory 436. Then, after that, the image data is read from the buffer memory 436, the data is compressed in a predetermined compression format (for example, the JPEG method), and is recorded on the memory card 424.

The DSP 433 stores the image data captured by the CCD 214 and subjected to the above-described image processing and the image data read and expanded from the memory card 424 in the frame memory 435, and stores the image data in the frame memory 435. LCD 3 provided on electronic camera 1 based on the image
To be displayed. Further, the DSP 433 also manages the timing of data input / output when the above-described image data is recorded on the memory card 424 or the decompressed captured image data is recorded on the buffer memory 436.

A buffer memory 436 in which image data based on the output of the CCD 214 is temporarily stored is used to alleviate a difference in input / output speed of image data to / from the memory card 424 and a difference in processing speed between the CPU 439 and the DSP 433. Used for The timer 445 has a built-in clock circuit, and stores time data corresponding to the current time as C
It is output to the PU 439 and is also used as a timer for monitor on / off control described later. This time data is stored in the memory card 42 together with the image data described above.
4 recorded.

The colorimetric element 417 detects the color temperature of the main subject and its surroundings, and outputs data of the detected color temperature to the colorimetric circuit 452. The color measurement circuit 452 includes a color measurement element 417.
The analog signal output from the CPU is subjected to predetermined processing to be converted into a digital value, and the converted digital signal is converted into a digital signal by the CPU 439.
Output to The interface 448 is a predetermined external device.
It is provided for transmitting and receiving data to and from a (not shown). In the present embodiment, a USB interface is provided. 440 is a display circuit for controlling the display panel 7.

The power supply unit 455 is provided with a battery 456 for driving the camera and an external power supply connection terminal 15.
As described above, the external power supply connection terminal 15 of the AC adapter is used.
The connection / non-connection to is detected by the detection device 457.
Reference numeral 458 denotes a remaining amount detection device that detects the remaining capacity of the battery 456. The remaining capacity detection device 458 detects the voltage of the battery 456, for example, and compares the detected voltage with the lower-limit use voltage to calculate the remaining battery power.

The image data photographed as described above is
It is stored in the memory card 424 in the camera. One of the methods of storing the image data in the memory card 424 in an external storage device, for example, a PC (personal computer) is a method of transferring the image data to the PC by USB communication.

FIG. 3 is a diagram showing a system configuration when the image file 45 is transferred to the PC 20. The USB connection terminal 13 of the electronic camera 1 is connected to a USB connection terminal 24 of the PC 20 via a USB cable 21. 22 is P
The monitor connected to C20. PC 20 is modem 2
5 and the Internet via a general telephone line. For example, after transferring the image file 45 to the PC 20, the image file 45 can be transferred to a photo service using the Internet.

A transfer processing program is installed in the PC 20 in advance. This program, for example,
When the PC 20 recognizes that the electronic camera 1 connected by the USB cable 21 has the file structure shown in FIG. When the USB cable 21 is connected to the electronic camera 1, the transfer / marking button 12 of the electronic camera 1 has a function as a transfer button for instructing the start of transfer.

The image data is stored in a PC 20 as an external storage device.
Is transferred in the following procedure. (1) Transfer marking setting (2) Transfer preparation processing (3) Transfer processing (4) Transfer end (interruption) processing

<< Setting of Transfer Marking >> First, the setting of the transfer mark of (1) will be described. In the electronic camera 1 of the present embodiment, it is necessary to add a transfer marking to image data to be transferred in advance. Then, of the image data stored in the memory card 424, only the image data to which the transfer marking is added is transferred. That is, only necessary images can be selected and transferred.
Image data of the captured image is recorded on the memory card 424 as an image file. A directory “DCIM” is created in the memory card 424, and image files are recorded in the directory.

FIG. 4 qualitatively shows a file structure in the DCIM directory. In the DCIM directory, an image folder 44 named “100NIKON” is formed in advance. An image file 45 of image data obtained by photographing is stored in the image folder 44. The image file 45 contains “DSCN
0001.jpg "," DSCN0002.jpg "," DSCN0003.jpg ". In the example shown in FIG.
Ten image files 45 from “CN0001.jpg” to “DSCN0010.jpg” are stored.

In order to add a transfer marking to image data, for example, an image is reproduced and displayed on the display LCD 3 and is displayed as shown in FIG.
Push the transfer / marking button 12. Then, a list file 47 is generated in the image folder 44 of FIG. 4, and the image file name of the image data with the transfer marking added to the list file 47 is recorded. Reference numeral 46 denotes a list showing the recorded contents of the list file 47, in which two file names 48 having a file name "DSCN0002.jpg" and a file name "DSCN0004.jpg" are recorded. That is, transfer marking is added to the image files 45 having the file names “DSCN0002.jpg” and “DSCN0004.jpg”.

Further, when the transfer marking is added to the image file 45, the capacity of the image file 45 is integrated, and the file name 4 described in the list file 47 is added.
The total capacity 56 of the image file 45 having 8 is calculated. The calculated total capacity 56 is recorded in the list file 47. At the same time, the total number of image files 45 to which the transfer marking is added is calculated, and the total number is 55
Is recorded in the list file 47.

As will be described in detail later, during the transfer operation, a file 50 of "order.job" and a file 51 of "reply.job" are generated in the memory card 424. The “order.job” file 50 is created by the electronic camera 1 and referenced by the PC 20. On the other hand, "re
The “ply.job” file 51 is created by the PC 20 and referenced by the electronic camera 1. In this manner, the processing on the camera side and the processing on the PC side are performed in association with the memory card 424, and the image file 45
Is performed.

Such setting of the transfer marking can be performed in any of the recording mode and the reproduction mode. In the case of the recording mode, there are (a) a batch setting using a setting menu, and (b) a method of setting while displaying a frozen image immediately after shooting. On the other hand, in the case of the playback mode, (c) a method of displaying and setting one frame on the display LCD 3 and (d)
There are a method of making thumbnail display on the display LCD 3 for setting, and a method of (e) batch setting / cancellation using the setting menu as in the case of the recording mode.

(A) Batch setting method using the setting menu When setting is performed collectively using the setting menu, the menu button 10 and the selection buttons 11a to 11d shown in FIG. A transfer marking setting menu is displayed on the display LCD3. This menu has “Set” and “Release” items.
Indicates that the item of “setting” is in a selected state.
This selection state can be changed by pushing the selection buttons 11a and 11b.

When "setting" is selected, the electronic camera 1 enters a transfer marking setting state, and the transfer marking is automatically added to all of the photographed image data. On the other hand, when "Release" is selected, the electronic camera 1 enters the transfer marking release state, and the transfer marking is not added to the captured image data. In the case of the playback mode,
The transfer marking is added to all the image files 45 recorded on the memory card 424 by the collective setting.
Conversely, when "Release" is selected, all the transfer markings added to the image file 45 are released.

(B) Method of Setting Marking During Display of Freeze Image In the electronic camera 1, the release button 5 is pressed all the way to perform a shooting operation, and while the shot image is being recorded on the memory card 424, FIG. As shown in b), the photographed image is displayed on the display LCD 3 as a freeze image for a predetermined time.
The mark 34 is a mark indicating that an image is being recorded. When the transfer / marking button 12 is pushed while the mark 34 is displayed, the transfer mark is added to the image data and the transfer mark 33 is displayed.

(C) Method of setting by single-frame playback display FIG. 6 (a) is a diagram showing the display LCD 3 at the time of single-frame playback display. You. When the transfer / marking button 12 of FIG. 1 is pushed in this single-frame playback display state, a transfer marking is added to the image data, and a transfer mark 33 is displayed on the display LCD 3. When the image data to which the transfer marking is added in the recording mode is reproduced and displayed, the transfer mark 33 is displayed together with the image as shown in FIG.

(D) Method for setting by reproducing and displaying thumbnail images FIG. 6B shows a display LCD 3 on which thumbnail images are displayed.
FIG. On the display LCD 3, three images are displayed in the vertical direction and three images in the horizontal direction, and a total of nine thumbnail images are displayed. In FIG. 6B, the fifth thumbnail image displayed at the center is in the selected state, and the selection frame 42 is displayed. The selection frame 42 can be moved to upper, lower, left and right thumbnail images by operating the selection switches 11a to 11d in FIG. When the transfer / marking button 12 is pushed in the selection state shown in FIG. 6B, the transfer mark is added to the fifth image and the transfer mark 33 is displayed. At the time of displaying a thumbnail image, a transfer marking can be sequentially added to a plurality of image data.

When the transfer / marking button 12 is pushed again while the transfer mark 33 is displayed as shown in FIGS. 5A and 5B, the transfer mark is released and the transfer mark 33 is displayed. Disappear. When the image to which the transfer marking is added is reproduced and displayed on the display LCD 3, the transfer mark 33 as shown in FIG. 6 is always displayed.
The camera user can easily confirm which image has the transfer marking.

<< Description of Transfer Operation >> Next, the above (2) to
The procedure of the transfer operation up to (4) will be described with reference to the flowchart of FIG. The flowchart of FIG. 7 shows the procedure of the process performed by the CPU 439 of the electronic camera 1, and starts when the transfer / marking button 12 is operated. In step S101, a transfer time t1 for transferring the image file 45 to the PC 20 is calculated based on the total capacity 56 recorded in the list file 47 and the communication speed of the USB communication. Communication speed is ROM
443 is recorded in advance.

In step S102, based on the remaining battery capacity of the battery 456 calculated by the remaining battery capacity detection device 458 in FIG. 2, the operable time, which is the time during which the electronic camera 1 can be operated with the remaining battery capacity, is operated. Calculate t2. In step S103, it is determined whether the ratio (t2 / t2) between the operable time t2 and the transfer time t1 is 1 or more, that is, whether or not the image transfer ends within the operable time t2. If YES is determined in step S103, the process proceeds to step S107, and if NO is determined, the process proceeds to step S104.

If it is determined that the image transfer is not completed within the operable time t2 and the process proceeds to step S104, a warning display as shown in FIG. 11A is displayed on the display LCD 3 in step S104. In FIG. 11A, a display 71 is a display indicating that all the files cannot be transferred because the remaining battery power is insufficient. The display 73 indicates the transferable number. The transferable number 73 can be calculated from the capacity based on the transfer time t1 and the communication speed and the capacity of each image file 45.

The display 72 is a transfer switch for instructing to continue the transfer operation, and the display 74 is a stop switch for instructing to stop the transfer. By default, the stop switch 74 is in the selected state, but the selection buttons 11c and 11d in FIG.
By pressing the switch, one of the switches can be set to the selected state. When the transfer / marking button 12 is operated with the stop switch 74 selected, a transfer stop instruction is input to the electronic camera 1. On the other hand, when the transfer switch 72 is selected and the transfer / marking button 12 is operated, a transfer continuation instruction is input to the electronic camera 1.

In step S105, it is determined whether or not the AC adapter is connected to the external power supply connection terminal 15,
If the determination is YES, the process proceeds to step S108, and if the determination is NO, the process proceeds to step S106. Step S10
At 6, it is determined whether a transfer continuation instruction or a transfer stop instruction has been input on the display screen of FIG.
If it is determined as ES, the process proceeds to step S107, and if it is determined as NO, the process returns to step S105. Subsequent step S1
At 07, it is determined whether the input instruction is a transfer continuation instruction or a transfer stop instruction. Step S107
If it is determined that the transfer continuation instruction has been input in step, the process proceeds to step S108 to execute a transfer process routine. On the other hand, if it is determined in step S107 that the transfer stop instruction has been input, the processing of the transfer operation ends.

As described above, in the transfer process, the “order.job” file 50 in the memory card 424 and the “r
The processing on the camera side and the processing on the PC side are performed in association with the “eply.job” file 51. FIG. 8 is a flowchart showing a processing procedure on the electronic camera 1 side.
5 is a flowchart showing a processing procedure on the PC 20 side.
Hereinafter, each flowchart will be described with reference to FIG.

First, the flowchart of FIG. 8 shows the transfer process in step S108 of FIG. 7 in detail, and is a process performed on the camera side. Step S20
In step 1, as shown in FIG. 10A, a display 60 "Preparing for transfer" is displayed on the display LCD3. The display 66 displays the total number of transfer images, and the display 67 displays the total transfer capacity. Both are displayed based on the number of files 55 and the total capacity 56 of the list file 47. The display 68 displays the transfer time t1 calculated in step S101 of FIG.

In step S202, "order.jo" in FIG.
b) Create a file 50 in the memory card 424, and write an instruction 52 “transfer” to the file 50. In step S203, it is determined whether the “reply.job” file 51 has been created in the memory card 424, and if the “reply.job” file 51 has been created, the process proceeds to step S204. In step S204, it is determined whether or not the difference between the operable time t2 and the transfer time t1 is equal to or longer than a predetermined time Δt. The predetermined time Δt is a standard capacity (200 to
This is a time in which about several image files of about 600 KB can be transferred, and is set in advance.

If YES is determined in the step S204, the process proceeds to a step S205, where the memory card 424
"Reply.job" file 51 is referred to. This "rep
The “ly.job” file 51 is created by the PC 20 as described above.
"Finis" indicating that all image files 45 having the file name 48 recorded in the list file 47 have been transferred.
The instruction 54 "h" is recorded. "Reply.job"
When the file 51 is generated, “１ ／” indicating that the first image file is being transferred is recorded as the transfer number 53.

In step S206, it is determined whether or not the "finish" command 54 is recorded in the "reply.job" file 51. If "YES" is determined, the process proceeds to step S207. If "NO" is determined, step S211 is determined. Proceed to. When the process proceeds from step S207 to step S211, the display on the display LCD 3 is updated according to the recorded contents of the "reply.job" file 51.

More specifically, the first image file 45
In the “reply.job” file 51 during transfer of the file name “DSCN0002.jpg”, the transfer number 53 of “「 ”is recorded, and the second image file 4
5 (file name “DSCN0004.jpg”), a transfer number 53 of “2/2” is recorded. Then, after the transfer of the second image file 45 is completed, the above-mentioned command “finish” 54 is recorded.
These recordings are performed by the PC 20 according to the transfer status.

While the first image file 45 is being transferred, the displays 61, 62, as shown in FIG.
69 and 70 are displayed on the display LCD 3. The display 61 is a display indicating that the image file is being transferred, and the display 62 is a display indicating the number of the image file being transferred. The display 69 displays the ratio between the operable time t2 and the transfer time t1, and the display 70 displays the remaining transfer time. The transfer time t1, the operable time t2, and the remaining transfer time are sequentially calculated during the transfer, and the ratio of the display 69 and the remaining transfer time of the display 70 are updated as the transfer progresses. For example, the transfer speed is calculated from the predetermined data amount or the time required to transfer one image file, and the remaining transfer time is updated. Therefore, the remaining transfer time also changes according to the communication speed during transfer. When the process in step S211 ends, the process returns to step S204.

On the other hand, when it is determined NO in step S204 and the process proceeds to step S209, rewriting processing of the list file 47 is performed. FIG. 12 shows list file 4
7 is a diagram for explaining rewriting of No. 7; FIG. First, an untransferred list file 49 is generated in the memory card 424. 8
0 is an untransferred list indicating the contents of the untransferred list file 49. FIG. 12 shows the file name “DSCN000” shown in FIG.
The case where the process proceeds from step S204 to step S209 after the transfer of the image file 45 of “2.jpg” is completed. The file name “DSCN0002.jpg” described in the location of L1 before the transfer is deleted from the list 46 upon completion of the transfer.

When the process proceeds from step S 204 to step S 209, the file name “DSCN0004.jpg” of the untransferred image file 45 is described in the list 46. In step S209, the file name "DSCN0004.jpg"
Is deleted from the list 46 and transferred to the untransferred list 80. The number of files 55 and the total capacity 56 are also transferred to the untransferred list 80. If such rewriting is performed in step S209, the process proceeds to step S210 to set an interruption flag, and then proceeds to step S207. Note that “t2−t1 <Δt” during the transfer of the image file 45.
Is determined, the rewriting of the list file 47 in step S209 is performed after the transfer of the image file 45 being transferred is completed.

In step S207, the memory card 42
4 deletes the “order.job” file 50. In step S208, the “reply.job” file 51 is
It is determined whether or not it has been deleted according to 0. If it is determined that the file has been deleted, a series of processing in FIG. 8 ends, and the process proceeds to step S109 in FIG.

Next, the processing procedure on the PC side shown in FIG. 9 will be described. In step S301, the memory card 42
4. It is determined whether or not the “order.job” file 50 has been created in step S4.
Go to 302. In step S302, “order.job”
In response to the “transfer” instruction 52 in the file 50, FIG.
"Reply.job" file 51 shown in
24. `` Reply.
The recorded contents in the “job” file 51 are as described above.

In step S303, list file 4
7, an image file 45 with a file name 48
Is transferred to the PC 20 side. In step S304, the file name 4 recorded in the list file 47
It is determined whether or not the transfer of all the image files 45 has been completed. If the determination is YES, the process proceeds to step S305.
If NO is determined, the process proceeds to step S308. here,
The PC 20 refers to the list file 47 and uses the file name 4
If 8 is not described, it is recognized that all the image files 45 have been transferred. Therefore, step S209 in FIG.
Is executed, even if the file name “DSCN0004.jpg” is not actually transferred, the file is moved from the list 46 to the untransferred list 80. Is recognized as having ended.

When the process proceeds from step S304 to step S308, the recorded contents of the "reply.job" file 51 are updated. For example, when the transfer of the first image file 45 is completed, the transfer number 53 is rewritten from “１ ／” to “「 ”.

On the other hand, if it is determined in step S304 that the transfer has been completed and the process proceeds to step S305, the process proceeds to step S305.
At 305, the “reply.job” file 51
h "instruction 54 is written. In step S306, it is determined whether or not the “order.job” file 50 in the memory card 424 has been deleted. If the determination is YES, the process proceeds to step S307. Then, if the “reply.job” file 51 in the memory card 424 has been deleted in step S307, a series of processing ends.

Thus, step S108 of FIG.
Is completed, the process proceeds to step S109. In step S109, it is determined whether or not the interruption flag is set. If the determination is YES, step S111 is performed.
The process proceeds to step S110 if NO is determined.
When the process proceeds from step S109 to step S110,
That is, when the transfer process is normally terminated without interruption, a termination display as shown in FIG.
3 is displayed. In FIG. 10C, a display 64 is a message “Transfer completed”, and a display 65 is a display indicating that the power of the electronic camera 1 may be turned off.

On the other hand, the transfer process is interrupted and the
When the process proceeds from step S09 to step S111, FIG.
The display as shown in (b) is displayed on the display LCD3. In FIG. 11B, a display 75 is a message indicating that the image transfer has been interrupted. The display 76 displays the number of untransferred images, that is, the number of file names 48 described in the untransferred list 80.

In the flowchart of FIG. 7, steps S101 to S107 are described above.
(2) Transfer preparation processing, step S108 is (3) transfer processing, and steps S109 to S111 are (4) transfer end (interruption) processing.

The embodiment described above is an example of an electronic camera, and various other modifications are possible. Hereinafter, a modified example will be described. (A) The total number and the total capacity of the image files to be transferred are displayed based on the number of files 55 and the total capacity 56 described in the list file 47. When the transfer / marking button 12 is operated, the list is displayed. The capacity of the image file 45 having the file name 48 described in the file 47 may be checked. (B) The transfer of the image file is interrupted at the time when the times t1 and t2 become “t2−t1 <Δt”. At this time, the remaining battery capacity still has a margin. The transfer may be continued (until it reaches zero). (C) As for the communication speed at the start of communication, the actual communication speed of the connected communication means may be detected instead of the standard communication speed stored in advance. For example, when the transfer / marking button 12 is operated or when a connection with a considerable device is established, a predetermined amount of data is transmitted, and the communication speed is calculated from the transmission time. Thereby, more accurate image data transfer time can be calculated. The actual communication speed may be acquired when the communication cable is connected to the electronic camera. (D) As a method of interrupting the transfer, all the file names in the list file 47 may be deleted as described above, or the “order.job” file 50 in the memory card 424 may be directly deleted. Alternatively, the transfer program on the PC side may have an interrupt command, and the camera may send the interrupt command to interrupt the transfer request on the personal computer side. (E) When the transfer marking is added in the reproduction mode, the number of image files to which the transfer marking is added and the total capacity may be displayed on the display LCD 3. The user can perform the marking while checking the transfer capacity and the number of transferred files.

In the above-described embodiment, the function of the transfer / marking button 12 is switched depending on whether or not the USB cable 21 is connected.
A transfer button and a marking button may be provided. Further, when a plurality of communication functions are provided instead of a single communication function, the transfer rates for the respective communication functions are stored in advance, and one of the transfer functions is used depending on which communication function is selected. Calculate the communication speed. In addition, as the communication method, the U
Not only the SB system but also a wireless system such as Bluetooth may be used. Furthermore, the present invention is not limited to an electronic camera, and may be applied to a PDA, a mobile phone, or the like having an image sensor and capable of transferring data.

In the correspondence between the embodiment described above and the elements of the claims, the CCD 214 is used as an image pickup means.
The memory card 424 is a storage medium, the PC 20 is an external storage device, the USB connection terminal 13 and the interface 44.
8, a transfer means, a battery 456, a built-in battery for driving an electronic device, a transfer / marking button 12, a transfer instruction operation unit, displays 60, 66 to 68, 71, 73, transfer information, and displays 71, 73, a warning. The CPU 439 controls the control means, the storage means, the operable time calculation means and the transfer time calculation means, the display LCD 3 displays the information,
7 and the CPU 439 serve as the determination means.
Reference numeral 58 denotes a remaining capacity detection unit, and switches 72 and 74 each constitute a selection unit.

[0065]

As described above, according to the present invention,
After the transfer information such as the number of frames of the image data and the total data capacity is displayed on the display means, the image data is transferred. Therefore, the transfer information can be used to determine whether to stop or continue the transfer operation. As a result, dangerous transfer operations can be avoided. In particular, the continuation or interruption of the transfer can be performed by the electronic device selecting means of the sixth aspect.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of an electronic device according to the present invention, wherein (a) is a plan view of an electronic camera viewed from above,
(B) is a rear view of the camera viewed from behind.

FIG. 2 is a circuit block diagram of the electronic camera shown in FIG.

FIG. 3 is a diagram showing a system configuration when an image file 45 is transferred to a PC 20.

FIG. 4 is a diagram qualitatively showing a file structure in a memory card 424.

FIG. 5 is a diagram for explaining a display on a display LCD 3.
(A) is a diagram illustrating a transfer marking setting menu, and (b) is a diagram illustrating a transfer marking setting during display of a freeze image.

6A and 6B are diagrams for explaining a transfer marking setting method at the time of reproduction, wherein FIG. 6A shows a time of one-frame reproduction and FIG. 6B shows a time of a thumbnail reproduction.

FIG. 7 is a flowchart illustrating a procedure of a transfer operation.

8 is a flowchart showing a detailed procedure of the transfer processing of FIG. 7, and shows a procedure on the electronic camera side.

FIG. 9 is a flowchart showing a detailed procedure of the transfer process of FIG. 7, and shows a procedure on the PC side.

FIG. 10 is a diagram showing a display example of a display LCD 3.
(A) is a display during transfer preparation, (b) is a display during transfer,
(C) shows the display at the end of the transfer.

FIG. 11 is a diagram showing a display when transfer is completed;
(A) is a warning display in the case of interruption, and (b) is an end display when the transfer is normally completed.

FIG. 12 is a diagram illustrating rewriting of a list file 47.

[Explanation of symbols]

 Reference Signs List 1 electronic camera 3 display LCD 10 menu button 11a to 11d selection button 12 transfer marking button 13 transfer button 13, 24 USB connection terminal 15 external power supply connection terminal 20 PC (personal computer) 21 USB communication cable 44 image folder 47 list file 12 Transfer / Marking button 214 CCD 424 Memory card 439 CPU 448 Interface 456 Battery 457 Detector 458 Remaining capacity detector

Claims (6)

[Claims] 1. An image capturing means for capturing an image of a subject, a storage means for storing image data of an image captured by the image capturing means in a storage medium, and transferring the image data stored in the storage medium to an external storage device. An electronic device comprising: a transfer instruction operating unit for instructing the transfer of the image data by the transfer unit; and a display unit for displaying transfer information on the image data to be transferred to the external storage device; An electronic device comprising: a control unit that causes the transfer unit to transfer image data after displaying the transfer information on the display unit. 2. The electronic device according to claim 1, wherein the transfer information is the number of frames included in image data transferred to the external storage device. 3. The electronic device according to claim 1, wherein the transfer information is a total data capacity of image data transferred to the external storage device. 4. An image pickup means for picking up an image of a subject, a storage means for storing image data of an image picked up by the image pickup means in a storage medium, and transferring the image data stored in the storage medium to an external storage device. An electronic device for driving the electronic device, a remaining capacity detecting means for detecting a remaining capacity of the internal battery, a remaining capacity detected by the remaining capacity detecting means, and the transfer means. Operable time calculating means for calculating the operable time of the electronic device based on the data transfer speed of the electronic device, and transfer to the external storage device based on the data transfer speed of the transfer means and the data capacity to be transferred. Transfer time calculating means for calculating a transfer time of the image data; and when the transfer time is longer than the electronic device operable time, the transfer time is calculated within the electronic device operable time. Electronic device all the image data to be transferred to the external storage device is characterized in that a display means for displaying the forwarding information indicating that can not be transferred. 5. The electronic device according to claim 4, wherein: an external power supply connection terminal to which an external power supply can be connected; a determination unit configured to determine whether the external power supply is connected to the external power supply connection terminal; When the determination unit determines that the external power supply is not connected, the display unit permits display of the transfer information. When the determination unit determines that the external power supply is connected, the display unit displays the transfer information. A control unit for prohibiting display of the transfer information by the electronic device. 6. The electronic device according to claim 1, further comprising a selection unit configured to select one of interruption and continuation of the transfer operation when the transfer information is displayed on the display unit. Electronic equipment characterized by the above.