JP2000236511A - Image processor, its method and served medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attach generated date and time to a still picture stored in a storage medium. SOLUTION: A control section 67 controls a DV/digital video data converter 62, a digital video data/analog converter 63 and a digital video data/joint photographic experts group JPEG converter 64, which convert received digital video data into a still picture, convert the still picture of a memory stick 10 into the digital video data or the analog video signal and convert the received analog video signal into the still picture. A clock section 69 outputs data of date and time. A memory stuck interface 66 is controlled by the control section 67 to store the still picture to a memory stick 10 and to read the still picture from the memory stick 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus and method, and a providing medium, and more particularly, to an image processing apparatus and method for mutually converting digital video data and analog video signals, and a providing medium.

[0002]

2. Description of the Related Art With the spread of a digital video tape recorder integrated with a camera, a signal conversion device for mutually converting digital video data and an analog video signal has begun to be used. The signal conversion device converts digital video data into an analog video signal, or converts an analog video signal into digital video data.

Further, in order to store a still image included in digital video data or an analog video signal,
2. Description of the Related Art An image processing apparatus such as a personal computer having a built-in video capture board and a PC card or a flash memory is used. A still image is stored in a PC card or a flash memory mounted on a personal computer, and the still image is used by another image processing device or the like.

[0004]

However, the date and time of generation of an image stored in a PC card or the like in such an image processing apparatus is often unknown, and the content of the image cannot be specified in many cases.

The present invention has been made in view of such a situation, and attaches the generated date and time to a still image stored in a storage medium so that the contents of the still image can be easily specified. The purpose is to:

[0006]

According to a first aspect of the present invention, there is provided an image processing apparatus for converting input first digital video data into a first still image and storing the first digital video data in a storage medium.
A first converting means for converting the still image of the first into a second digital video data, and a second still image which converts the input first analog video signal into a third still image, The second conversion means for converting the still image into a second analog video signal, the date and time data output means for outputting date and time data, and the first conversion means for converting the data into an attached storage medium. The first still image and the date and time data or the third still image and the date and time data converted by the second conversion means are written, and the second still image stored in the attached storage medium is written. It is characterized by including read / write means for reading an image, and control means for controlling conversion of the first conversion means, conversion of the second conversion means, and writing and reading of the read / write means.

According to a seventh aspect of the present invention, the input first digital video data is converted into a first still image, and the second still image stored in the storage medium is converted into a second still image.
A first conversion step of converting the input first analog video signal into a third still image, and converting the second still image stored in the storage medium into a second still image. A second conversion step of converting to an analog video signal, a date and time data output step of outputting date and time data, and a first still image converted by the first conversion step to an attached storage medium; The data of the date and time, or the third still image converted in the second conversion step and the data of the date and time are written and stored in the attached storage medium.
And a control step for controlling the conversion of the first conversion step, the conversion of the second conversion step, and the writing and reading of the reading and writing step.

[0008] According to another aspect of the present invention, the providing medium converts the input first digital video data into a first still image and converts the second still image stored in the storage medium into an image processing device. A first conversion step of converting the input first analog video signal into a third still image, and converting the second still image stored in the storage medium into a second still image; A second conversion step of converting the data into an analog video signal, a date and time data output step of outputting date and time data, and a first still image converted by the first conversion step to an attached storage medium. The image and the date and time data, or the third still image and the date and time data converted in the second conversion step are written, and the second still image stored in the attached storage medium is written. A computer-readable program for executing a process including a read / write step of reading an image, a conversion of a first conversion step, a conversion of a second conversion step, and a control step of controlling writing and reading of the read / write step It is characterized by doing.

An image processing apparatus according to claim 1, wherein
9. The image processing method according to claim 1, wherein the input first digital video data is converted into a first still image, and the second still image is stored in a storage medium. Is converted into second digital video data, the input first analog video signal is converted into a third still image, and the second still image stored in the storage medium is converted into the second analog video signal. Is converted into a signal, the date and time data is output, and the first still image and the date and time data, or the third still image and the date and time data are written to the attached storage medium, The second still image stored in the attached storage medium is read, and conversion of the image and writing and reading of the image are controlled.

[0010]

FIG. 1 is a diagram showing one embodiment of a signal conversion device 1 according to the present invention. Signal converter 1
Is remotely controlled by the remote controller 2. The signal conversion device 1 is a digital VTR integrated with a video camera.
(Video Tape Recorder) 3 and IEEE (Institute of Elect)
rical and Electronics Engineers) 1394 serial bus 4
Connected by The signal converter 1 transmits a DV VC to the digital VTR 3 via the IEEE1394 serial bus 4.
R (Digital Video Video Cassette Recorder) format digital video data
Digital video data in DV VCR format is input from R3. That is, IEEE1394 is used as a digital interface for connecting the signal conversion device 1 and the digital VTR 3.

The signal converter 1 is connected via a cable 6
An analog video signal is output to the monitor 5 and the cable 8
, An analog video signal is input from the VTR 7.

The signal converter 1 converts digital video data input from the digital VTR 3 into an analog video signal and outputs the analog video signal to the monitor 5. Alternatively, the signal conversion device 1 converts an analog video signal input from the VTR 7 into digital video data,
Output to 3. Alternatively, the signal conversion device 1 includes the VTR 7
The analog video signal input from is output to the monitor 5 as it is.

The signal converter 1 is equipped with a PC card 9 or a memory stick 10 having a predetermined memory therein, and converts input digital video data or analog video signals into still images in response to predetermined operations. Then, the still image is stored in the attached PC card 9 or memory stick 10.

The signal converter 1 converts a still image stored in the mounted PC card 9 or the memory stick 10 into an analog video signal and outputs it to the monitor 5. The signal conversion device 1 has a PC card 9 mounted therein.
Alternatively, the still image stored on the memory stick 10 is
The data is converted into digital video data and output to the digital VTR 3.

The signal conversion device 1 copies a still image stored in the mounted PC card 9 to the mounted Memory Stick 10 in response to a predetermined operation. Similarly, the signal conversion device 1 copies a still image stored in the mounted memory stick 10 to the mounted PC card 9 in response to a predetermined operation.

The description of the audio processing of the signal conversion device 1 is omitted.

FIG. 2 is a front view of the signal conversion device 1 with the cover 11 opened, and FIG.
It is a right side view of the state which opened. PC card connector 1
2, a PC card 9 having a predetermined memory is mounted. The memory stick connector 13 is mounted by pushing the memory stick 10. The memory stick 10 mounted on the memory stick connector 13 is again
Can be removed when pushed into.

The LED 14 indicates the status of the mounted Memory Stick 10, such as whether data has been written to the Memory Stick 10 mounted on the Memory Stick connector 13 or an error has occurred. When an analog video signal input from the VTR 7 is input to the signal conversion device 1, the LED 15 lights up. When digital video data input from the digital VTR 3 is input to the signal conversion device 1,
The ED 16 lights up. The LED 17 indicates the status of the mounted PC card 9 such as data being written to the PC card 9 mounted on the PC card connector 12 or occurrence of an error.

FIG. 4 is a front view showing a state where the cover 11 of the signal conversion device 1 is closed, and FIG.
FIG. 4 is a right side view in a state where is closed. Lid 1 of signal conversion device 1
When the PC card connector 1 is closed, the PC card connector 12 is covered (since the opening is closed), so that the user cannot remove the PC card 9 attached to the PC card connector 12, and PC to PC card connector 12
The card 9 cannot be mounted.

On the other hand, even if the cover 11 of the signal conversion device 1 is closed, the hole 18 is provided in the cover 11, so that the memory stick 10 mounted on the memory stick connector 13 can be removed (the memory stick 10 is When the memory stick 10 is pushed into the memory stick connector 13, it protrudes from the memory stick connector 13 to a position where it can be picked with a finger.
Can be attached to the memory stick connector 13.

FIG. 6 is a top view of the signal conversion device 1.
A record button 21, a capture button 22, an index button 23, a play button 2
4, an analog input selection button 25 and a DV input selection button 26 are provided. The record button 21 stores a still image included in the input analog video signal or digital video data in the memory stick 10 mounted on the memory stick connector 13 or the PC card 9 mounted on the PC card connector 12. It is operated when you let it.

The capture button 22 is used to transfer a still image included in the input analog video signal or digital video data to the memory stick 10 mounted on the memory stick connector 13 or the PC card mounted on the PC card connector 12. 9, the operation is performed when the moving image displayed on the monitor 5 is stopped.

The index button 23 displays on the monitor 5 thumbnail images of a plurality of still images stored in the memory stick 10 attached to the memory stick connector 13 or the PC card 9 attached to the PC card connector 12. It is operated when you let it.

The play button 24 is connected to the memory stick 10 mounted on the memory stick connector 13,
Alternatively, the operation is performed when a still image stored in the PC card 9 attached to the PC card connector 12 is displayed on the monitor 5.

The analog input selection button 25 is
Converter 1 converts an analog video signal supplied from
Is operated when inputting to. DV input selection button 26
Is operated when the digital video data input from the digital VTR 3 is input to the signal conversion device 1.

The on / off state of the LED 14, LED 15, LED 16, and LED 17 can also be confirmed from the upper surface of the signal converter 1.

FIG. 7 shows a PC card connector 1 with respect to a substrate 31 on which predetermined components of the signal conversion device 1 are fixed.
FIG. 2 is a diagram illustrating a fixed state of the memory stick 2 and the memory stick connector 13. The PC card connector 12 is fixed to the upper surface of the substrate 31 of the signal conversion device 1 in the drawing. The memory stick connector 13 has an opening for mounting the memory stick 10 on the lower surface of the substrate 31 of the signal conversion device 1 in FIG.
The openings are fixed in the same direction as the openings in which the C-cards 9 are mounted, and the centers of the openings in the up-down direction substantially coincide with each other.

The PC card connector 12 and the memory stick connector 13 are fixed to the substrate 31 so that the openings thereof are in the same direction, and the centers of the respective openings in the vertical direction are substantially coincident with each other. PC card connector 12 and memory stick connector 13
The area required for mounting the device can be reduced, and the signal converter 1 can be reduced in size.

FIG. 8 is a diagram for explaining the external appearance of the remote controller 2. The remote controller 2 includes a record button 41, a capture button 42, an index button 43, a play button 44, an analog input selection button 4
5, and a DV input selection button 46 are provided.
The recording button 41 corresponds to the recording button 21 of the signal conversion device 1, and converts a still image included in an input analog video signal or digital video data into the memory stick 10 mounted on the memory stick connector 13 or a PC card. The operation is performed when the data is stored in the PC card 9 attached to the connector 12.

The capture button 42 is used for the signal conversion device 1
The still image included in the input analog video signal or digital video data corresponding to the capture button 22 of the memory stick 10 attached to the memory stick connector 13 or the PC card attached to the PC card connector 12 9, the operation is performed when the moving image displayed on the monitor 5 is stopped.

The index button 43 corresponds to the index button 23 of the signal conversion device 1, and corresponds to the static button stored on the Memory Stick 10 mounted on the Memory Stick connector 13 or the PC card 9 mounted on the PC Card connector 12. It is operated when displaying the index of the image on the monitor 5.

The play button 44 corresponds to the play button 24 of the signal converter 1, and the memory stick connector 13
Memory Stick 10 or PC attached to
When displaying a still image stored in the PC card 9 attached to the card connector 12 on the monitor 5,
Operated.

The analog input selection button 45 corresponds to the analog input selection button 25 of the signal converter 1, and the VTR
The operation is performed when the analog video signal supplied from 7 is input to the signal conversion device 1. DV input selection button 4
Reference numeral 6 corresponds to the DV input selection button 26 of the signal conversion device 1, and is operated when digital video data input from the digital VTR 3 is input to the signal conversion device 1.

FIG. 9 is a block diagram illustrating the configuration of the signal conversion device 1. The IEEE1394 interface 61
An input / output interface compliant with IEEE1394 to which the other end of the IEEE1394 serial bus 4 to which one end is connected to the digital VTR 3 is connected. The digital VTR is controlled via the IEEE1394 serial bus 4 under the control of the control unit 67.
The digital video data input from the TR 3 is supplied to the DV / digital video data converter 62, and the digital video data output from the DV / digital video data converter 62 is supplied to the digital VTR 3 via the IEEE1394 serial bus 4.

DV / Digital Video Data Converter 6
2 is a digital VTR 3 based on control by the control unit 67.
When the digital video data is input to the signal conversion device 1 from the DVB, the digital video data of the DV VCR format supplied from the IEEE1394 interface 61 is
Converts to internal digital video data, and converts to digital video data / analog converter 63 and digital video data / JPEG (Joint Photographic Experts Group)
It is supplied to the converter 64. The DV / digital video data converter 62 converts the internal digital video data supplied from the digital video data / analog converter 63 into digital video data in the DV VCR format when an analog video signal is input from the VTR 7 to the signal converter 1. And supplies it to the IEEE1394 interface 61.

The DV / digital video data converter 62 converts the internal digital video data supplied from the digital video data / JPEG converter 64 into
The video data is converted into digital video data in VVCR format and supplied to the IEEE1394 interface 61.

The digital video data / analog converter 63 controls the digital VT under the control of the control unit 67.
When digital video data is input to the signal conversion device 1 from R3, the DV / digital video data converter 6
The internal digital video data supplied from 2 is converted into an analog video signal and supplied to the superimpose unit 68. The digital video data / analog converter 63 converts an analog video signal supplied from the VTR 7 into internal digital video data when an analog video signal is input from the VTR 7 to the signal conversion device 1, and converts the DV / digital video data. It is supplied to a converter 62 and a digital video data / JPEG converter 64.

The digital video data / JPEG converter 64 converts the internal digital video data supplied from the DV / digital video data converter 62 or the digital video data / analog converter 63 under the control of the control section 67 into a static JPEG format. The image data is converted into image data and output to the PC card interface 65 and the memory stick interface 66. Also, digital video data / JPEG converter 64
Is a JPEG supplied from the PC card interface 65 or the memory stick interface 66.
System converts still image data into internal digital video data, and a DV / digital video data converter 62.
And digital video data / analog converter 63
To supply.

The PC card interface 65 transmits digital video data / data to the PC card 9 attached to the PC card connector 12 under the control of the control section 67.
The data of the JPEG still image supplied from the JPEG converter 64 is stored in the PC card connector 12.
JPEG stored in the PC card 9 attached to
The data of the still image of the system is read and output to the digital video data / JPEG converter 64.

Memory stick interface 66
The memory stick 10 mounted on the memory stick connector 13 is controlled by the control unit 67.
The JPEG format still image data supplied from the digital video data / JPEG converter 64 is stored, and the JPEG format still image data stored in the Memory Stick 10 attached to the Memory Stick connector 13 is read out. Video data /
Output to JPEG converter 64.

The control unit 67, based on signals supplied from the key input unit 71 or the reception unit 72, etc., controls the IEEE1394 interface 61, DV / digital video data converter 62, digital video data / analog converter 6
3. Digital video data / JPEG converter 64,
It controls the PC card interface 65, the memory stick interface 66, the superimpose unit 68, and the display unit 70.

The superimpose unit 68 includes a control unit 67
A signal of a predetermined icon or character indicating the state of the signal conversion device 1 is converted into digital video data /
The signal is superimposed on the analog video signal supplied from the analog converter 63 and output to the monitor 5 via the cable 6.

The clock unit 69 supplies data indicating the date and time to the control unit 67. The display unit 70 includes the LED 1
4, LED15, LED16, LED17, and LE
D14 to LED17 are driven by an LED driving unit and the like. Under the control of the control unit 67, the LED14,
The LED 15, the LED 16, and the LED 17 are turned off or turned on or blinked in a predetermined color.

The key input section 71 comprises a record button 21, a capture button 22, an index button 23, a play button 24, an analog input selection button 25, a DV input selection button 26, and the like. The control unit 67 transmits signals corresponding to operations of the index button 23, the play button 24, the analog input selection button 25, the DV input selection button 26, and the like.
To supply. The receiving unit 72 receives the infrared rays transmitted from the remote controller 2 and blinks the infrared rays (recording button 41, capture button 42, index button 43, playback button 44, analog input selection button 45, and DV input selection button). (Corresponding to the operation 46) is supplied to the controller 67.

FIG. 10 shows an example of a screen displayed by the signal converter 1 on the monitor 5 when the play button 24 is pressed and the memory stick 10 in which no data of a still image is stored is mounted on the memory stick connector 13. FIG. The signal conversion device 1 displays the icon 101 of the memory stick 10 at the upper right of the screen of the monitor 5 and displays the character “MEMORY PLAY” below the icon 101 of the memory stick 10. In addition, the signal conversion device 1 displays “0/0” on the left side of the icon 101 of the memory stick 10 on the screen of the monitor 5 to indicate that the memory stick 10 mounted on the memory stick connector 13 does not store a still image. Is displayed. “0” on the right side of “0/0” indicates the number of still images stored in the Memory Stick 10 mounted on the Memory Stick connector 13 and “0”.
“0” on the left side of “/ 0” indicates the number of the still image displayed on the screen of the monitor 5 among the still images stored in the memory stick 10 (stored image). Since the still image is “0”, “0” is displayed for convenience and the screen of the monitor 5 is blue-backed).

FIG. 11 shows a screen displayed on the monitor 5 by the signal conversion device 1 when the index button 23 is pressed and a PC card 9 in which data of a still image is not stored is attached to the PC card connector 12. It is a figure explaining an example. The signal conversion device 1 is located at the upper right of the screen of the monitor 5,
The icon 102 of the PC card 9 is displayed, and the character “index playback” is displayed below the icon 102 of the PC card 9. The signal conversion device 1 includes a monitor 5
On the left side of the icon 102 of the PC card 9 on the screen of
The character "0/0" indicating that the PC card 9 mounted on the card connector 12 does not store a still image is displayed. The meaning of "0/0" is the same as that of FIG. 10, and the description is omitted.

FIG. 12 shows a screen displayed on the monitor 5 by the signal conversion device 1 when the playback button 24 is pressed and the memory stick 10 storing predetermined still image data is attached to the memory stick connector 13. It is a figure explaining an example. The signal conversion device 1 displays a predetermined image stored on the memory stick 10 on the monitor 5.

As in the case of FIG. 10, the signal conversion device 1
Is displayed on the memory stick 10
Is displayed below the icon 101.

The signal converter 1 stores, for example, 12 still images on the left side of the icon 101 of the memory stick 10 on the screen of the monitor 5 with the memory stick 10 attached to the memory stick connector 13,
The character "10/12" indicating that the image displayed on the screen of the monitor 5 is the tenth image is displayed. The signal conversion device 1 is an example of a character indicating the resolution of an image displayed on the screen of the monitor 5 in the center of the upper part of the screen of the monitor 5.
Further, the signal conversion device 1 displays the name of the file corresponding to the image displayed on the screen of the monitor 5 on the upper left side of the screen of the monitor 5 and the image displayed on the screen of the monitor 5. Is displayed, indicating that the file corresponding to is set to the erasure prevention setting.

The signal converter 1 displays the date and time when the still image data was stored on the memory stick 10 on the lower left side of the screen of the monitor 5. Signal converter 1
By setting, the date and time may not be displayed.

FIG. 13 shows an example of a screen displayed on the monitor 5 by the signal conversion device 1 when the index button 23 is pressed and the memory stick 10 storing a predetermined still image is mounted on the memory stick connector 13. FIG. The signal conversion device 1 generates a predetermined number of thumbnail images from the images stored in the memory stick 10, displays the predetermined number of thumbnail images on the screen of the monitor 5, and displays a file corresponding to each thumbnail image. Display the name, etc. The signal conversion device 1 displays the icon 101 of the memory stick 10 at the lower right of the screen of the monitor 5.

The signal converter 1 stores, for example, 120 still images of the Memory Stick 10 mounted on the Memory Stick connector 13 on the left side of the icon 101 of the Memory Stick 10 on the screen of the monitor 5 and The character "120/120" indicating that the last displayed thumbnail image (image with the largest number) is the 120th image is displayed. Furthermore,
The signal conversion device 1 displays the name of the file corresponding to the last image displayed on the screen of the monitor 5 on the lower left side of the screen of the monitor 5.

FIG. 14 shows a memory stick connector 1
3 is playing an image stored in the Memory Stick 10 attached to the Memory Stick 10,
FIG. 7 is a diagram showing an example of a screen displayed on the monitor 5 by the image conversion device 1 when the image is pulled out from the memory stick connector 13. The image conversion device 1 displays an icon 104 indicating that the memory stick 10 has been pulled out of the memory stick connector 13 at the center of the screen of the monitor 5.

FIG. 15 shows a memory stick connector 1
When the image stored in the memory stick 10 mounted on the PC card 3 or the image stored in the PC card 9 mounted on the PC card connector 12 is being played, the memory stick 10 is pulled out from the memory stick connector 13. When the PC card 9 is pulled out from the PC card connector 12, the image conversion device 1
FIG. 6 is a diagram showing an example of a screen displayed on the monitor 5. The image conversion apparatus 1 includes an icon 104 indicating that the memory stick 10 has been pulled out of the memory stick connector 13, and a PC card 9 connected to the PC card connector 1.
An icon 105 indicating that the monitor 105 has been pulled out is displayed side by side at the center of the screen of the monitor 5.

FIG. 16 shows a case where the recording button 21 is pressed and data corresponding to a still image included in an analog video signal is stored in the Memory Stick 10 attached to the Memory Stick connector 13. FIG. 4 is a diagram for explaining an example of a screen displayed on a monitor 5. The signal conversion device 1 displays the icon 101 of the memory stick 10 at the upper right of the screen of the monitor 5 and displays the word “analog input” below the icon 101 of the memory stick 10.

The signal converter 1 displays, on the left side of the icon 101 of the memory stick 10 on the screen of the monitor 5, the state of storage of the image of the memory stick 10 attached to the memory stick connector 13, “80/12”.
The character "0" is displayed. "80/120"
120 "indicates the maximum number of still images (generated at a predetermined compression ratio) that can be stored in the Memory Stick 10 mounted on the Memory Stick connector 13.
“80” on the left side of “80/120” is the memory stick 1 attached to the memory stick connector 13.
0 indicates the number of images currently stored. The signal conversion device 1 displays “standard”, which is an example of characters indicating the compression ratio of a still image, in the center of the upper part of the screen of the monitor 5.

Further, the signal conversion device 1 displays the date and time when the still image file was stored on the memory stick 10 on the lower left side of the screen of the monitor 5. By setting of the signal conversion device 1, the date and time may not be displayed.

FIG. 17 shows that the recording button 21 is pressed and the P
PC card 9 attached to C card connector 12
FIG. 3 is a diagram illustrating an example of a screen displayed on the monitor 5 by the signal conversion device 1 when a still image included in digital video data is stored. The signal conversion device 1 includes a monitor 5
The icon 102 of the PC card 9 is displayed on the upper right of the screen of the PC card 9, and “DV” is displayed below the icon 102 of the PC card 9.
Display the characters “Enter”.

The signal conversion device 1 is a PC on the screen of the monitor 5.
On the left side of the icon 102 of the card 9, characters “30/80” indicating the storage state of the image of the PC card 9 attached to the PC card connector 12 are displayed. "30
The contents indicated by the display of / 80 "are the same as in the case of FIG. 16, and the description thereof will be omitted.

The signal conversion device 1 is an example of a character indicating the compression ratio of a still image in the center of the upper part of the screen of the monitor 5.
SFN "on the lower left of the screen of the monitor 5,
The date and time when the still image file was stored on the PC card 9 is displayed. By setting of the signal conversion device 1, the date and time may not be displayed.

FIG. 18 shows that when copying a still image file stored in the PC card 9 attached to the PC card connector 12 to the Memory Stick 10 attached to the Memory Stick connector 13, the signal converter 1 FIG. 6 is a diagram illustrating an example of a screen displayed on a monitor 5. The signal conversion device 1 includes a PC in the center of the screen of the monitor 5.
Icon 102 indicating card 9, Memory Stick 1
An icon 101 indicating 0 and an icon 106 indicating that a still image file is copied from the PC card 9 to the memory stick 10 are displayed.

Next, when the play button 24 or the index button 23 is pressed and the memory stick 10 or the PC card 9 is mounted, the control unit 67 causes the icon 101 of the memory stick 10 or the PC card 9 to be inserted.
The process of displaying the icon 102 on the monitor 5 will be described with reference to the flowchart of FIG. Step S
In 11, the control unit 67 of the signal conversion device 1 determines whether or not the Memory Stick 10 is mounted on the Memory Stick connector 13 based on the signal supplied from the Memory Stick interface 66, and determines whether the Memory Stick 10 is mounted on the Memory Stick connector 13. If it is determined that the icon has been detected, the process proceeds to step S12, where the icon 101 of the memory stick 10 is displayed on the superimpose unit 68, and the process returns to step S11 to repeat the process of displaying the icon.

If it is determined in step S 11 that the memory stick 10 is not mounted on the memory stick connector 13, the process proceeds to step S 13, where the control unit 67 executes the PC card connector based on the signal supplied from the PC card interface 65. It is determined whether or not the PC card 9 is mounted on the PC 12. If it is determined in step S13 that the PC card 9 has been attached to the PC card connector 12, the process proceeds to step S14, where the control unit 67 sends the PC card 9 to the superimpose unit 68.
Is displayed, and the process returns to step S11.
The process of displaying the icon is repeated.

If it is determined in step S13 that the PC card 9 is not mounted on the PC card connector 12, neither the memory stick 10 nor the PC card 9 is mounted. , An icon 1 indicating that no memory stick is attached to the superimpose unit 68
04 and an icon 105 indicating that the PC card is not mounted are displayed.
The process is repeated until the memory stick 10 or the PC card 9 is mounted.

As described above, when the play button 24 or the index button 23 is pressed, the memory stick 1
When 0 or the PC card 9 is inserted, the signal conversion device 1 displays an icon corresponding to the inserted Memory Stick 10 or PC card 9 on the screen of the monitor 5.

Next, a process of reproducing an image stored in the memory stick 10 mounted on the memory stick connector 13 or the PC card 9 mounted on the PC card connector 12 will be described with reference to the flowchart of FIG. I do. In step S31, the control unit 67 of the signal conversion device 1 determines whether the memory stick 10 is mounted on the memory stick connector 13 or the PC card 9 based on the signal supplied from the memory stick interface 66 and the signal supplied from the PC card interface 65. Is PC card connector 1
It is determined whether or not the memory stick 10 is loaded in the superimpose unit 68 if it is determined that neither the memory stick 10 nor the PC card 9 is loaded. 104 indicating PC and PC card 9
Is displayed, and the process returns to step S31, and the process is repeated until either the memory stick 10 or the PC card 9 is mounted.

If it is determined in step S 31 that either the memory stick 10 or the PC card 9 is mounted, the process proceeds to step S 33, where the control unit 67 of the signal conversion device 1 transmits the signal supplied from the memory stick interface 66. It is determined whether or not the memory stick 10 is attached to the memory stick connector 13 based on. In step S33, the memory stick 10 is
If it is determined that the camera is mounted on No. 3, step S34
The control unit 67 causes the superimpose unit 68 to
An icon 101 indicating that the memory stick 10 is mounted is displayed.

In step S35, the signal conversion device 1
Causes the memory stick interface 66 to read data such as the number of images stored in the memory stick 10 and the image compression ratio from the memory stick 10 attached to the memory stick connector 13. In step S36, the control unit 67 of the signal conversion device 1 causes the superimpose unit 68 to display the number of images stored on the memory stick 10, characters indicating the compression ratio of the images, and the like.

In step S37, the signal conversion device 1
Causes the memory stick interface 66 to read the data of a predetermined still image stored in the memory stick 10 and supply the still image data to the digital video data / JPEG converter 64. The digital video data / JPEG converter 64 converts the still image data having the JPEG format supplied from the memory stick interface 66 into internal digital video data, and supplies it to the digital video data / analog converter 63. The digital video data / analog converter 63 converts the internal digital video data supplied from the digital video data / JPEG converter 64 into an analog video signal, supplies the analog video signal to the monitor 5, and converts a predetermined still image into the monitor 5
To be displayed.

In step S38, the signal converter 1
The control unit 67 determines whether or not the play button 24 of the key input unit 71 has been pressed based on the signal supplied from the key input unit 71. If it is determined that the play button 24 has been pressed, Since the image stored in the card 9 is reproduced, the process proceeds to step S39, and it is determined whether or not the PC card 9 is mounted on the PC card connector 12 based on the signal supplied from the PC card interface 65.

If it is determined in step S39 that the PC card 9 is not mounted on the PC card connector 12, the process proceeds to step S40, where the control unit 67 determines whether the memory card It is determined whether or not the memory stick 10 has been removed from the storage device 13. If it is determined in step S40 that the Memory Stick 10 has been removed from the Memory Stick connector 13,
The control unit 67 of the signal conversion device 1 causes the superimpose unit 68 to display the icon 104 indicating that the memory stick 10 has been removed, returns to step S31, and repeats the image reproduction process.

If it is determined in step S40 that the memory stick 10 has not been removed from the memory stick connector 13, the image stored in the memory stick 10 is reproduced, and the procedure returns to step S37 to display a predetermined image. Repeat the process.

At step S38, the play button 24
If it is determined that is not pressed, the image stored on the memory stick 10 is continuously reproduced, so that step S39 is skipped and the procedure proceeds to step S40.

If it is determined in step S39 that the PC card 9 is mounted on the PC card connector 12, and if it is determined in step S33 that the memory stick 10 is not mounted on the memory stick connector 13, the PC Since the image stored in the card 9 is reproduced, the process proceeds to step S42, where the control unit 67 causes the superimpose unit 68 to display an icon 102 indicating that the PC card 9 is mounted.

In step S43, the signal conversion device 1
Of the PC card interface 65,
PC card 9 attached to PC card connector 12
Then, data such as the number of images stored in the PC card 9 and the compression ratio of the images is read. In step S44, the control unit 67 of the signal conversion device 1 causes the superimpose unit 68 to display the number of images stored in the PC card 9, characters corresponding to the image compression ratio, and the like.

In step S45, the signal converter 1
Of the PC card interface 65,
The data of a predetermined still image stored in the PC card 9 is read, and the data of the still image is supplied to the digital video data / JPEG converter 64. The digital video data / JPEG converter 64 converts the still image data having the JPEG format supplied from the PC card interface 65 into internal digital video data, and supplies it to the digital video data / analog converter 63. The digital video data / analog converter 63 converts the internal digital video data supplied from the digital video data / JPEG converter 64 into an analog video signal, supplies the analog video signal to the monitor 5, and displays a predetermined still image on the monitor 5. .

In step S46, the signal conversion device 1
The control unit 67 determines whether or not the play button 24 of the key input unit 71 has been pressed based on the signal supplied from the key input unit 71. If it is determined that the play button 24 has been pressed, the memory stick Since the image stored in the memory stick 10 is reproduced, the process proceeds to step S47, and the memory stick 1 is connected to the memory stick connector 13 based on the signal supplied from the memory stick interface 66.
It is determined whether 0 is mounted.

If it is determined in step S 47 that the memory stick 10 is not mounted on the memory stick connector 13, the process proceeds to step S 48, where the control unit 67 executes the PC card connector based on the signal supplied from the PC card interface 65. It is determined whether or not the PC card 9 has been removed from 12. If it is determined in step S48 that the PC card 9 has been removed from the PC card connector 12, the control unit 67 of the signal conversion device 1
Causes the superimpose unit 68 to display an icon 105 indicating that the PC card 9 has been removed, and proceeds to step S
Returning to 31, the process is repeated.

If it is determined in step S48 that the PC card 9 has not been removed from the PC card connector 12, the image stored in the PC card 9 is reproduced. Is repeated.

At step S46, the play button 24
If it is determined that is not pressed, the image stored in the PC card 9 is continuously reproduced, so that step S
47 is skipped, and the procedure proceeds to step S48.

If it is determined in step S47 that the memory stick 10 is mounted on the memory stick connector 13, the image stored in the memory stick 10 is reproduced. Execute processing for displaying an image.

As described above, the signal conversion device 1 causes the monitor 5 to display a predetermined still image stored in the memory stick 10 or the PC card 9. When a still image stored in the memory stick 10 is displayed on the monitor 5, a predetermined still image stored in the PC card 9 can be displayed on the monitor 5 by pressing the play button 24. Further, when a still image stored in the PC card 9 is displayed on the monitor 5, a predetermined still image stored in the memory stick 10 can be displayed on the monitor 5 by pressing the play button 24.

Further, in the same processing, the signal conversion device 1
Data of a predetermined still image stored in the memory stick 10 or the PC card 9 can be converted into DV VCR digital video data and supplied to the digital VTR 3.

Next, a still image or VTR included in the digital video data supplied from the digital VTR 3
A process of storing a still image included in the analog video signal supplied from the memory stick 7 on the memory stick 10 or the PC card 9 will be described with reference to a flowchart of FIG. In step S71, the control unit 67 of the signal conversion device 1 determines whether or not the capture button 22 of the key input unit 71 has been pressed. If it is determined that the capture button 22 has been pressed, the process proceeds to step S72, where the digital Video data / analog converter 63 or DV /
From the signal supplied from the digital video data converter 62, the digital video data / analog converter 6
3 determines whether or not the image displayed on the monitor 5 is frozen.

If it is determined in step S72 that the image displayed on the monitor 5 by the digital video data / analog converter 63 is not frozen, the process proceeds to step S73, where the control unit 67 determines whether the digital video data / analog converter 63 or the DV / digital video data converter 62 freezes the image displayed on the monitor 5, and proceeds to step S75.

If it is determined in step S72 that the image displayed on the monitor 5 by the digital video data / analog converter 63 is frozen, the process proceeds to step S74, where the control unit 67 determines whether the digital video data / analog converter 63 or the DV / digital video data converter 62 releases the freeze of the image displayed on the monitor 5, and proceeds to step S75.

If it is determined in step S71 that the capture button 22 has not been pressed, the process proceeds to step S71.
The processing from 72 to step S74 is skipped, and the procedure proceeds to step S75.

In step S75, the control section 67
It is determined whether or not the recording button 21 of the key input unit 71 has been pressed. If it is determined that the recording button 21 has been pressed, the process proceeds to step S76, where the control unit 67 sends the digital video data / JPEG converter 64 The internal digital video data supplied from the video data / analog converter 63 or the DV / digital video data converter 62 is converted into JPEG data and supplied to the PC card interface 65 and the memory stick interface 66. In step S77, the control section 67 supplies data indicating the date and time to the PC card interface 65 and the memory stick interface 66 based on the data indicating the date and time supplied from the clock section 69.

In step S78, the control section 67
Based on the signal supplied from the Memory Stick interface 66, it is determined whether or not the Memory Stick 10 is attached to the Memory Stick connector 13,
When it is determined that the memory stick 10 is mounted on the memory stick connector 13, the still image and date and time data are written to the memory stick 10 mounted on the memory stick connector 13 by the memory stick interface 66. In step 80, the control unit 67 causes the superimpose unit 68 to display predetermined icons and data, returns to step S71, and repeats the process of storing a still image.

If it is determined in step S78 that the memory stick 10 is not mounted on the memory stick connector 13, the process proceeds to step S81. It is determined whether or not the PC card 9 is mounted on the PC 12. Step S8
In step 1, when it is determined that the PC card 9 is attached to the PC card connector 12, the process proceeds to step S82, where the control unit 67
Then, a still image and date and time data are written to the PC card 9 attached to the PC card connector 12. In step 83, the control unit 67 causes the superimpose unit 68 to display predetermined icons and data, returns to step S71, and repeats the process of storing a still image.

If it is determined in step S81 that the PC card 9 is not attached to the PC card connector 12, data cannot be written.
Proceeding to 84, the control unit 67
A predetermined error message is displayed in step S7.
Returning to step 1, the process of storing the still image is repeated.

In step S75, the recording button 21
If it is determined that is not pressed, the process returns to step S71, and the process of storing a still image is repeated.

As described above, the signal conversion device 1 can freeze the image displayed on the monitor 5 by operating the capture button 22. Capture button 2
When the recording button 21 is pressed without pressing the button 2, the signal conversion device 1 can store a still image on either the memory stick 10 or the PC card 9 without freezing the image displayed on the monitor 5. .

Therefore, for example, the VT instead of the monitor 5 is connected to the analog video signal output terminal of the signal converter 1.
R7 is connected, the signal conversion device 1 converts the digital video data supplied from the digital VTR 3 into an analog video signal, and the VTR 7
When recording is performed on the tape mounted on the TR7, if only the recording button 21 is pressed, the signal conversion device 1 does not affect the image recorded on the VTR 7 and a predetermined still image is stored in the memory stick 10 or the PC card 9. Can be stored.

Next, the process of copying still image data stored in the memory stick 10 to the PC card 9 will be described with reference to the flowchart of FIG. In step S101, the user attaches the memory stick 10 storing the copied still image data to the memory stick connector 13 and reproduces an image corresponding to the data to be copied. Step S102
, The control unit 67 of the signal conversion device 1
It is determined whether or not the copy button of the remote controller 2 has been pressed based on the signal supplied from the remote controller 2. If it is determined that the copy button of the remote controller 2 has not been pressed, the process returns to step S101, and The process is repeated until the copy button is pressed.

If it is determined in step S 102 that the copy button of the remote controller 2 has been pressed, the flow advances to step S 103, where the control section 67 of the signal conversion device 1 performs the processing based on the signal supplied from the PC card interface 65. PC card 9 to PC card connector 12
It is determined whether or not is mounted. Step S103
In step S104, when it is determined that the PC card 9 is attached to the PC card connector 12, the control unit 67 of the signal conversion device 1 displays a copy confirmation screen on the superimpose unit 68. Let it.

In step S105, the control unit 67 of the signal conversion device 1 determines whether or not the copy button of the remote controller 2 has been pressed based on the signal supplied from the reception unit 72, and If it is determined that the button has been pressed, the process proceeds to step S106, in which the memory stick interface 66 reads data corresponding to the image reproduced from the memory stick 10 attached to the memory stick connector 13, and the PC card interface 65 Then, the data is written to the PC card 9 attached to the PC card connector 12.

In step S107, the control unit 67 of the signal conversion device 1 causes the superimpose
Display the icon indicating that copying is in progress as shown in FIG.
Returning to step S101, the copying process is repeated.

If it is determined in step S105 that the copy button of the remote controller 2 has not been pressed, the process proceeds to step S108, where the control unit 67 of the signal conversion device 1 It is determined whether a button other than the copy button of the remote controller 2 has been pressed. In step S108,
If it is determined that any button other than the copy button of the remote controller 2 has not been pressed, since no button of the remote controller 2 has been operated, the procedure returns to step S105 and the remote controller 2
The process is repeated until the above operation is performed.

If it is determined in step S108 that a button other than the copy button of the remote controller 2 has been pressed, the copy has been canceled, and the process returns to step S101 to repeat the process of copying image data.

If it is determined in step S103 that the PC card 9 is not mounted on the PC card connector 12, the process proceeds to step S109, and the control unit 67 of the signal conversion device 1 sends the PC card to the superimpose unit 68. 9 is displayed, and the process returns to step S101 to repeat the copy process.

As described above, the signal conversion device 1 copies data of a predetermined still image stored in the memory stick 10 to the PC card 9. The procedure for copying data of a predetermined still image stored in the PC card 9 to the memory stick 10 is the same procedure. Alternatively, data of a plurality of still images that are index-reproduced may be copied.

Next, the state of the memory stick 10 mounted on the memory stick connector 13 is shown.
The lighting process of the LED 14 will be described with reference to the flowchart of FIG. In step S131, the control unit 67 of the signal conversion device 1 determines whether an error has occurred in the Memory Stick 10 based on the signal supplied from the Memory Stick interface 66, and determines that an error has occurred in the Memory Stick 10. If
Proceeding to step S132, the LED 14 of the display unit 70 blinks red, and returns to step S131 to repeat the processing.

If it is determined in step S 131 that no error has occurred in the memory stick 10, the process proceeds to step S 133, and the control unit 67 of the signal conversion device 1 executes the process based on the signal supplied from the memory stick interface 66. Connector 1
It is determined whether or not still image data has been written to the memory stick 10 mounted on the memory stick 10. If it is determined that still image data has been written to the memory stick 10, the process proceeds to step S 134 and the LED 14 of the display unit 70 Is turned on in red, and the process returns to step S131.
Repeat the process.

If it is determined in step S 133 that the still image data has not been written to the memory stick 10, the process proceeds to step S 135, and the control unit 67 of the signal conversion device 1 transmits the data to the memory stick 10 attached to the memory stick connector 13. It is determined whether or not the stored still image is being played back. If it is determined that the still image stored on the memory stick 10 is being played back, the process proceeds to step S136, in which the memory stick 10 is attached. It is determined whether or not the data of the still image stored in the memory stick 10 is being read.

If it is determined in step S136 that the data of the still image stored in the memory stick 10 mounted on the memory stick connector 13 has not been read, the process proceeds to step S137, where the control unit 67 of the signal conversion device 1 , The LED 14 of the display unit 70
Is turned on in green, the process returns to step S131, and the process is repeated.

If it is determined in step S136 that the data of the still image stored in the memory stick 10 attached to the memory stick connector 13 is being read, the process proceeds to step S138, and the control unit 67 of the signal conversion device 1 Then, the LED 14 of the display unit 70 is caused to blink green, the process returns to step S131, and the process is repeated.

If it is determined in step S135 that the still image stored in the memory stick 10 has not been reproduced, the process proceeds to step S139, where the control unit 67 of the signal conversion device 1 turns off the LED 14 of the display unit 70. Returning to step S131, the process is repeated.

As described above, the control unit 6 of the signal conversion device 1
7 is an LED corresponding to the state of the Memory Stick 10 mounted on the Memory Stick connector 13.
Turn on or blink 14. The LED 17 is connected to the PC 17 mounted on the PC card connector 12 by the same processing.
Lights up or flashes according to the state of the C card 9.

Although the PC card 9 and the memory stick 10 have been described as being mounted on the signal conversion device 1, other storage media such as smart media (trademark) or compact flash (trademark) may be mounted and used. .

Also, it has been described that digital video data in the DV VCR format is input to the signal conversion device 1 and digital video data in the DV VCR format is output from the signal conversion device 1. However, the digital video data is MPEG (Moving). Digital video data compressed by a method such as Picture Experts Group) may be used.
The digital video data may be recorded on a disk or solid-state memory other than a tape, or may be input or output via a network or a satellite.

When copying a still image from the PC card 9 to the memory stick 10, the signal converter 1
Described that the icon 101, the icon 102, and the icon 106 are displayed at the center of the screen of the monitor 5. For example, when copying a moving image from the digital VTR 3 to the VTR 7, the signal conversion device 1 An icon indicating the digital VTR 3, an icon indicating the VTR 7, and an icon indicating a copy of the moving image may be displayed on the upper right side of the screen. Further, for example, when copying a still image of the memory stick 10 to a memory stick attached to the digital VTR 3, the signal conversion device 1 displays the icon 101, the icon 106, and an icon indicating the memory stick attached to the digital VTR 3. You may make it display.

Note that the control unit 67 of the signal conversion device 1
Instead of the ED 14, the superimpose unit 68 may display a predetermined icon or character corresponding to the use state of the memory stick 10.

Further, as a providing medium for providing a user with a computer program for performing the above processing,
In addition to recording media such as magnetic disks, CD-ROMs, and solid-state memories, communication media such as networks and satellites can be used.

[0115]

According to the image processing apparatus according to the first aspect, the image processing method according to the seventh aspect, and the providing medium according to the eighth aspect, the input first digital video data is the first digital video data. , The second still image stored in the storage medium is converted into the second digital video data, the input first analog video signal is converted into the third still image, The second still image stored in the storage medium is converted into a second analog video signal, date and time data is output, and the first still image and the date and time are stored in the attached storage medium. Or the third still image and the date and time data are written, the second still image stored in the attached storage medium is read out, the image is converted, and the image is written and written. Since reading is to be controlled, the date and time that is generated in the still image to be stored in the storage medium is attached, the specific contents of the still image can be easily performed.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of a signal conversion device 1 according to the present invention.

FIG. 2 is a front view of the signal conversion device 1 with a cover 11 opened.

FIG. 3 is a right side view of the signal conversion device 1 with a lid 11 opened.

FIG. 4 is a front view of the signal conversion device 1 with a lid 11 closed.

FIG. 5 is a right side view of the signal conversion device 1 with a lid 11 closed.

FIG. 6 is a top view of the signal conversion device 1.

FIG. 7 is a diagram illustrating a state where the PC card connector 12 and the memory stick connector 13 are mounted on the board 31.

FIG. 8 is a diagram illustrating an external appearance of a remote controller 2.

FIG. 9 is a block diagram illustrating a configuration of the signal conversion device 1.

FIG. 10 is a diagram illustrating an example of a screen displayed on the monitor by the signal conversion device.

FIG. 11 is a diagram illustrating an example of a screen displayed on the monitor 5 by the signal conversion device 1.

FIG. 12 is a diagram for explaining an example of a screen displayed on the monitor 5 by the signal conversion device 1.

FIG. 13 is a diagram illustrating an example of a screen displayed on the monitor by the signal conversion device.

FIG. 14 is a diagram illustrating an example of a screen displayed on the monitor 5 by the signal conversion device 1.

FIG. 15 is a diagram illustrating an example of a screen displayed on the monitor 5 by the signal conversion device 1.

FIG. 16 is a diagram illustrating an example of a screen displayed on the monitor 5 by the signal conversion device 1.

FIG. 17 is a diagram illustrating an example of a screen displayed on the monitor 5 by the signal conversion device 1.

FIG. 18 is a diagram illustrating an example of a screen displayed on the monitor by the signal conversion device.

FIG. 19 is a flowchart illustrating a process of displaying the icon 101 of the memory stick 10 or the icon 102 of the PC card 9 on the monitor 5.

FIG. 20 shows a memory stick 10 or a PC card 9
4 is a flowchart for explaining a process of reproducing an image stored in the storage device.

FIG. 21 shows a still image stored on a memory stick 10 or P
5 is a flowchart illustrating a process of storing the information in a C card.

FIG. 22 is a flowchart illustrating a process of copying a still image stored on a memory stick to a PC card.

FIG. 23 is a flowchart illustrating a lighting process of an LED.

[Explanation of symbols]

1 signal converter, 2 remote controller, 9
PC Card, 10 Memory Stick, 11
Lid, 12 PC card connector, 13 Memory stick connector, 14 and 17 LED, 18
Hole, 31 boards, 61 IEEE1394 interface, 62 DV / digital video data converter,
63 digital video data / analog converter,
64 digital video data / JPEG converter,
65 PC card interface, 66 Memory stick interface, 67 Control unit, 68
Superimpose section, 69 Clock section, 101 to 106 icons

Continued on the front page F term (reference) 5B050 AA08 BA10 CA07 DA02 EA03 EA19 FA02 FA13 GA08 5C052 AA01 AA16 AB03 AB05 AC08 CC06 CC11 CC20 DD02 DD04 EE08 GA02 GA03 GA06 GA09 GB06 GB10 GC01 GC05 GD03 GE08 5C053 FA06 FA07 FA22 FA27 GA27 GA27 HA40 JA22 KA24 LA06 LA15 5C076 AA16 AA19 BA06

Claims (8)

[Claims] 1. An image processing apparatus having a storage medium mounted thereon, wherein the input first digital video data is converted into a first still image, and the second still image stored in the storage medium is converted into a first still image. First converting means for converting the first analog video signal into a third still image, and converting the second still image stored in the storage medium into a third still image. A second conversion means for converting the data into two analog video signals; a date and time data output means for outputting date and time data; and the second conversion means which is converted by the first conversion means into the attached storage medium. The first still image and the date and time data, or the third still image and the date and time data converted by the second conversion means are written and stored in the attached storage medium. Read / write means for reading the second still image, and control means for controlling conversion of the first conversion means, conversion of the second conversion means, and writing and reading of the read / write means. Image processing apparatus. 2. The image processing apparatus according to claim 1, wherein the storage medium is a PC card. 3. The image processing apparatus according to claim 1, wherein the storage medium is a memory stick. 4. The image processing apparatus according to claim 1, wherein the first digital video data and the second digital video data are in a DV VCR format. 5. The image processing apparatus according to claim 1, wherein the first still image, the second still image, and the third still image are in a JPEG format. 6. The data of the first still image and date and time converted by the first conversion means, or the third data converted by the second conversion means, in the storage medium mounted on the storage medium. 2. The image processing apparatus according to claim 1, further comprising a video signal generation output unit that generates a video signal for displaying a date and time when a still image and date and time data are written. 7. An image processing method for an image processing apparatus to which a storage medium is attached, wherein the input first digital video data is converted into a first still image, and the second digital video data is stored in the storage medium. A first conversion step of converting a still image into second digital video data; a second conversion step of converting the input first analog video signal into a third still image; A second conversion step of converting a still image into a second analog video signal, a date and time data output step of outputting date and time data, and a first conversion step in which the storage medium is mounted. The converted first still image and date and time data, or the third still image and date and time data converted in the second conversion step are written and loaded. A read / write step of reading the second still image stored in the storage medium, and a conversion of the first conversion step, a conversion of the second conversion step, and a write and read of the read / write step. A controlling step of controlling the image processing. 8. An image processing apparatus in which a storage medium is mounted, converts the input first digital video data into a first still image, and converts the second still image stored in the storage medium into a first still image. A first conversion step of converting the first analog video signal into a third still image, and converting the second still image stored in the storage medium into a third still image. A second conversion step of converting the data into an analog video signal, a date and time data output step of outputting date and time data, and the second conversion step in which the storage medium is mounted in the first conversion step. The still image and date and time data, or the third still image and date and time data converted in the second conversion step, and the attached storage A read / write step of reading the second still image stored in the body; a control step of controlling the conversion of the first conversion step, the conversion of the second conversion step, and the writing and reading of the read / write step; A computer-readable storage medium for providing a computer-readable program for executing a process including: