JPH06105268A - Picture data processor - Google Patents

Abstract

PURPOSE:To output data according to the sequence of a photographic date at the time of reproducing plural image-picked up and recorded still picture data, in a picture data processor such as an electronic still camera which records and reproduces image-picked up picture data in a magnetic disk (floppy disk). CONSTITUTION:The photographic date data corresponding to each still picture data recorded in the index track of a floppy disk in a magnetic disk device 16 are temporarily read to a date data storage part, still picture recording tracks are arranged and stored by a sequence storage part 31 in the sequence of the photographic date, and the movement of the magnetic head of the magnetic disk device 16 is controlled based on the track No. stored in the sequence storage part 31. Then, the plural still picture data stored in the floppy disk are successively outputted and reproduced in the sequence of the photographic date.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image data processing device such as an electronic still camera for recording and reproducing imaged image data on a magnetic disk (floppy disk).

[0002]

2. Description of the Related Art Conventionally, a camera for picking up and recording still image data is generally a film camera that exposes an optical image to a silver salt film, or a still image data picked up by a solid-state image pickup device is recorded on a floppy disk. Floppy cameras for recording have been put to practical use.

Here, there is a camera that records the shooting date at the same time. In the case of the film camera, the date data is directly printed on the film. Further, in the case of a floppy camera, a recording track on a floppy disk is used as a track for recording date data, and the date data is written in correspondence with the number of recording tracks of still image data.

[0004]

In the film camera, the shooting date inevitably advances in the winding order of the film, but in the floppy camera, the still image data once recorded can be erased. Therefore, if the deletion of the still image data and the shooting recording are repeated, the shooting date is output earlier or later when the still image data is reproduced.

The present invention has been made in view of the above problems, and when reproducing a plurality of still image data captured and recorded, it is possible to output data in the order of shooting dates. The purpose is to provide.

[0006]

That is, an image data processing apparatus according to the present invention records and reproduces a plurality of still image data in a storage medium, and image data for recording a plurality of still image data in the storage medium. Recording means, date data recording means for recording date data corresponding to each still image data recorded in the storage medium in the storage medium, and determination means for determining the magnitude relationship between the date data recorded in the storage medium And reproducing means for reproducing the still image data recorded in the storage medium in the order according to the magnitude relation of the date data obtained by the judging means.

[0007]

[Function] That is, for example, a floppy disk (storage medium)
The shooting date data corresponding to each still image data recorded on the index track is temporarily recorded in the date data recording means, and the order of the shooting date is judged by the size relation of the date data, and the still image data is recorded. Since the tracks are rearranged, if the input / output magnetic heads for the floppy disk are controlled to move based on the track number after the rearranging, a plurality of still image data recorded on the floppy disk are sequentially output and reproduced in the order of the imaging date. Will be.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a first electronic circuit in an electronic still camera equipped with the image data processing device of the present invention.

FIG. 2 is a block diagram showing the configuration of the second electronic circuit in the electronic still camera equipped with the image data processing apparatus of the present invention. In FIGS. 1 and 2 above, 10
Is a control unit, and the control unit 10 controls the operation of each circuit unit according to the release switch and the reproduction key in the operation command key 11 or the switch and the key operation of the mode switching key of the recording / reproducing mode. .

For example, in the recording mode, the image pickup section 12
Includes an optical system such as an imaging lens and a CCD image sensor, and optically forms a subject image captured by a user through a finder in a pixel area of the image sensor. The image pickup signal of the data is output to the decoder 13.

The decoder 13 separates the input image pickup signal into a luminance signal (Y) and color difference signals (RY) (BY), and a luminance signal (Y) from the decoder 13. The color difference signals (RY) and (BY) are both F
It is supplied to the M modulator 14. The FM modulator 14 includes signals (Y) (RY) (B) input from the decoder 13.
-Y) are FM-modulated and superimposed, respectively.
The image signal modulated and superimposed by the M modulator 14 is output to the magnetic disk device 16 via the switch circuit 15,
Data is recorded on the floppy disk through the magnetic head.

In this case, the floppy disk of the magnetic disk device 16 has a recording area of, for example, 50 tracks,
Still image data is written in each of the tracks 1 to 49, and imaging date data is written in the 50th track (index track) corresponding to each recording track of the still image data. Be done.

The inter-track movement control of the magnetic head in the magnetic disk device 16 is performed via the head movement control section 17 by a head control signal from the control section 10.

On the other hand, in the reproduction mode after the image recording process of the subject image is completed, the magnetic disk device 1 is used.
The image signal recorded on the floppy disk No. 6 is output to the demodulation unit 19 via the switch circuit 18.

The demodulation unit 19 includes a magnetic disk device 16
The image signal read out from the floppy disk is demodulated by the above, and is separated into a luminance signal (Y) and a color difference signal (RY) (BY). The demodulated image signal from this demodulation unit 19 is an encoder 20. Given to NTSC (National T
elevision System Commitee) video signal Vide
Converted to o and output to the video playback terminal of a monitor TV, for example.

Here, the switch circuits 15 and 18 are switched by a switch control signal from the control unit 10 when writing and reading the image pickup date data to and from the index track in the floppy disk of the magnetic disk device 16, respectively. The index data is sent to and from the control unit 10 by the data signal processing unit 21.
Write / read processing is performed through.

The control unit 10 is connected with a date counter 22 for counting the year and date data, and a date data storage unit 23 for storing image pickup date data for the index track of the floppy disk. The date data storage unit 23 is connected to the date data storage unit 23. The address control is designated by the address control unit 24 in association with each still image recording track of the floppy disk.

That is, the date data storage unit 23 has date data storage addresses corresponding to tracks 1 to 49 of the floppy disk, and the imaging date data based on the count data of the date counter 22 is written in each of them. Get caught.

On the other hand, the control unit 10 and the date data storage unit 23
The first and second registers 25a and 25b are connected to the data transfer line between and. The first and second registers 25a and 25b are respectively provided in the address control unit 24.
It stores the image pickup date data corresponding to the memory address of the date data storage unit 23 designated by
And the respective imaging date data stored in the second registers 25a and 25b are sent to the first comparing section 26, and the date data stored in the first register 25a is transferred to the second register 25b.
It is compared and judged whether the date data is less than or equal to the date data stored in. The comparison result data from the first comparison unit 26 is output to the control unit 10.

The address control unit 24 includes the control unit 1
The count data from the track number counter 27 which counts by the counter control signal from 0 is given,
This track number counter 27 has a track number storage section 28.
Are connected.

A final track No storage unit 29 is connected to the control unit 10, and the count track No. in the track No counter 27 and the final track No storage unit 29 are connected.
The second track comparison section 30 compares the final track No.

The second comparing section 30 determines whether or not the track No. of the floppy disk sequentially counted by the track No. counter 27 exceeds the final recording track No. The comparison determination signal is output to the control unit 10.

The track number storage section 28 includes a first register 25a and a second register 2 in the first comparing section 26.
The track number in the track number counter 27 when the comparison result of the date data with 5b is “first register> second register” is stored. The track number data stored in the track number storage unit 28 is It is given to the order storage unit 31 connected to the control unit 10.

That is, the date data storage unit 23, address control unit 24, first register 25a, second register 2
5b, the first comparison unit 26, the track No counter 27, the track No storage unit 28, the final track No storage unit 29, and the second comparison unit 30 obtain the track number having the minimum date data in each recording track of the floppy disk. so,
Each time the memory address is advanced by the address counter 32, the track number having the large date data is written in the sequence storage unit 31 sequentially from the small date data.

The control unit 10 is also connected to a number storage unit 33 for storing the number of still images recorded on the floppy disk. The number storage unit 33 and the address counter 3 are connected.
A third comparing section 34 is connected between the second and second sections.

The third comparing section 34 compares the total number of still image data recorded on the floppy disk with the number of track numbers written in the order storage section 31 in ascending order of date data, and writes in the order storage section 31. The number of tracks, that is, the count data of the address counter 32,
It makes a comparative judgment as to whether the number of recorded still images has been exceeded.
The comparison determination signal from the third comparison unit 34 is output to the control unit 10.

Next, the operation of the electronic still camera having the above configuration will be described. FIG. 3 is a flowchart showing an image pickup / recording process in the electronic still camera.

That is, in taking a subject image,
When the imaging recording mode is set by operating the mode switching key, the control unit 10 causes the release switch and the operation command key 1
The recording mode is set according to the mode switching key operation signal from 1.

Then, the control unit 10 controls the magnetic disk device 1
6, a disk device control signal is supplied, the date data of each still image recording track recorded on the index track of the floppy disk is read, and transferred to the date data storage unit 23 via the switch circuit 18 → data signal processing unit 21 and stored. (Step R1).

If the camera power is not turned off or the floppy disk is ejected, the magnetic disk device 1 is passed from the controller 10 through the head movement controller 17.
The empty track of the floppy disk is searched by 6 (steps R2 and R3).

When the empty track is searched for, the magnetic disk device 1 is passed through the head movement control unit 17.
The magnetic head 6 is moved to the empty track position of the floppy disk and set (steps R4 and R5).

At this time, the address controller 24 sets the memory address of the date data memory 23 corresponding to the empty track of the floppy disk (step R6).

Thereafter, when the user captures the subject image through the finder and operates the release switch,
The image pickup signal obtained by the image pickup unit 12 is passed through the decoder 13 to obtain a luminance signal (Y) and color difference signals (RY) (BY).
After being separated into two parts, and FM-modulated and superimposed by the FM modulator 14, they are sent to the magnetic disk device 16 through the switch circuit 15, and a still image is recorded on the empty track of the floppy disk through the preset magnetic head. It is recorded as imaging data (steps R7 and R8).

At this time, the image pickup date data is written from the date counter 22 to the memory address of the date data storage unit 23 corresponding to the floppy disk track on which the image pickup data is recorded (step R9).

On the other hand, in step R7, when the release switch is not operated and the camera power is turned off or the floppy disk is ejected, the data stored in the date data storage unit 23 is stored. The shooting date data corresponding to the still image recording track is
The data is transferred from the control unit 10 to the magnetic disk device 16 via the data signal processing unit 21 and the switch circuit 15 and written again on the index track of the floppy disk (steps R7 → R10, R11).

In step R2, if the camera power is turned off or the floppy disk eject operation is performed, or if the floppy disk empty track is not searched in step R4, the process proceeds to step R11. The imaging date data corresponding to each still image recording track stored in the date data storage unit 23 is transferred from the control unit 10 to the data signal processing unit 21.
And the magnetic disk device 16 via the switch circuit 15.
Will be written to the index track of the floppy disk again.

When the image of the subject is picked up in this manner, still image pick-up data is recorded on an empty track of the floppy disk, and the index track of the floppy disk corresponds to the still image recording track. Imaging date data is recorded.

FIG. 4 is a first half flow chart showing a reproduction process of image pickup data in the electronic still camera. FIG. 5 is a latter half flow chart showing a reproduction process of image pickup data in the electronic still camera.

That is, when the mode switching key is operated to set the imaging data reproduction mode to reproduce the image data, the control section 10 responds to the mode switch key operation signal from the release switch and the operation command key 11. The playback mode.

Then, the controller 10 controls the magnetic disk device 1
6, a disk device control signal is supplied, the date data of each still image recording track recorded on the index track of the floppy disk is read, and transferred to the date data storage unit 23 via the switch circuit 18 → data signal processing unit 21 and stored. (Step P1).

Here, the still image recording tracks on the floppy disk are 1 to 5 tracks, and the date data recorded on the index tracks corresponding to these 1 to 5 tracks are "track 1: 6 days" in the same year and month respectively. "Truck 2: 7 days""Truck 3: 7 days""Truck 4: 3
"Day""Truck 5: 4th".

Then, the final track number in the date data storage unit 23, in this case "track 5", is read out to the control unit 10 and transferred and stored in the final track number storage unit 29 (step P2). Similarly, the number of still images recorded, in this case "5", is stored in the number storage unit 33 (step P3).

After the track number counter 27 is reset by the control section 10, the count data (track "1" in this case) in the track number counter 27 is stored in the track number storage section (register) 28 ( Steps P4, P5).

At this time, the address control section 24 designates the memory address of the date data storage section 23 corresponding to the track number "1" stored in the track number counter 27, and the date data storage section 23 stores the address. The date data stored in the designated address, in this case, the date data "6th" corresponding to the track "1" is stored in the first register 25a (step P6).

Here, the count data of the track number counter 27 is incremented by (+1) to become the track "2", and this count data "2" is the final track number storage section 29.
The second comparing unit 30 makes a comparison judgment as to whether or not the final track number "5" stored in advance has been exceeded, that is, whether or not the date data has been searched for all recording tracks (steps P7 and P8).

In this case, in step P8, since the current counter track No. is "2" and the final track No. is "5", it is determined to be "No" and it is determined that the track No. "2" is the minimum date data. It is determined whether or not the selection flag shown is set (step P9). Then, the date data storage unit 2 corresponding to the current counter track No. “2”
The date "3rd""7th" is stored in the second register 25b (step P10).

Then, the date data of the still picture recording track stored in the first register 25a is stored in the second register 25a.
It is determined whether or not the date data is less than or equal to the date data of the still image recording track stored in b (step P11).

In this case, the first register 25a stores "6 days" corresponding to the track number "1", and the second register 25b stores "7 days" corresponding to the track number "2". Therefore, it is determined to be "Yes" in step P11, and the process returns to step P7.

After this, when the process goes to steps P7 to P11,
The first register 25a stores "6th" corresponding to the track number "1", and the second register 25b stores the track number "1".
Since "7th" corresponding to "3" is stored, it is determined to be "Yes" again and the process returns to step P7.

Further, when the process goes to steps P7 to P11,
The first register 25a stores "6th" corresponding to the track number "1", and the second register 25b stores the track number "1".
Since "3 days" corresponding to "4" is stored, "N"
It is determined to be "o", and the track number "4" is read from the track number counter 27 and stored in the track number storage unit 28 (step P12). Then, the second register 2
Date data stored in 5b (in this case "3 days")
Is transferred to and stored in the first register 25a (step P
13) and returns to step P7 again.

Now, when proceeding to steps P7 to P11,
The first register 25a stores “3 days” corresponding to the track number “4”, and the second register 25b stores the track number.
Since "4th" corresponding to "5" is stored, "Ye"
"s" is determined and the process returns to step P7.

Further, in step P7, the track
When the count data of the No counter 27 is incremented by (+1) to become the track "6", the second comparing section 30 makes a comparison judgment that the final track "5" has been exceeded.
In step P12, the track number (in this case, "4") having the minimum date data stored in advance in the track number storage section 28 is transferred and stored in the order storage section 31 (step P14).

Then, the memory address of the date data storage section 23 corresponding to the track No. "4" in the track No. storage section 28 is instructed by the address control section 24, and a selection flag is set for that memory address ( Steps P15, P16).

At this time, the count data in the address counter 32 is incremented by (+1), the track No memory address in the order storage unit 31 is advanced, and the count data in the address counter 32 is stored in the number storage unit 3.
Whether the number of still image recording tracks stored in No. 3 (in this case, “5”) is exceeded, that is, whether or not the writing processing of the date data of all still image recording tracks in the order storage unit 31 in the ascending order is completed. The third comparison unit 34 makes a comparison determination (steps P17 and P18).

In this case, since the number of still picture recording tracks stored in the number storage section 33 is "5" and the count data of the address counter 32 is "2", it is judged "No" in step P18 and the track No. The counter 27 is reset and the track instruction number is set to "1" (step P19). Then, it is determined whether or not the selection flag is set in the date data of the date data storage unit 23 corresponding to the track instruction number (step P20).

In this case, since the selection flag is not set for the date data "6th" corresponding to the track number "1", it is judged "No" in step P20, and the process returns to step P5.

At this time, the track number "1" is transferred and stored again from the track number counter 27 to the track number storage unit 28, and the date data "6th" corresponding to this track number "1" is stored in the date data. Part 23 to the first register 2
5a is transferred and stored (steps P5 and P6).

Then, the processes of steps P7 to P11 are repeated, and the date data "6 days" of the track number "1" is compared with the date data "7 days" of the track numbers "2" and "3". After the judgment is made, when the track No. of the track No. counter 27 is counted up to the track "4" in Step P7, this track No.
Since the selection flag is set in advance in step P16 for the date data "3 days" in the date data storage unit 23 corresponding to No. "4", "Yes" in step P9.
s ”, and the process returns to step P7.

At this time, when the track No. of the track No. counter 27 is counted up to track "5" and the date data "4th" is stored in the second register 25b (steps P7 to P10), the first comparison is made. In the section 26, it is compared and judged that the date data of the first register 25a is smaller than "6th day", and this time, the track number "5" is read from the track number counter 27 and transferred and stored in the track number storage section 28 (step P11, P12).

Then, after the date data "4th" corresponding to the track "5" stored in the second register 25b is transferred and stored in the first register 25a, the track number is again set.
The count data in the counter 27 is track “6”.
Is counted up (step P13 → P7).

Then, the second comparing section 30 makes a comparison judgment that the final track "5" has been exceeded, so that the step P8 is performed.
Is determined to be “Yes” in step P12, and the track number (“5” in this case) having the second minimum date data stored in advance in the track number storage section 28 in step P12 is transferred to the order storage section 31 (step S12). P14).

Then, the memory address of the date data storage section 23 corresponding to the track No. "5" in the track No. storage section 28 is instructed by the address control section 24, and a selection flag is set for that memory address ( Steps P15, P16).

At this time, the count data in the address counter 32 is incremented by (+1) to advance the track No memory address in the order storage unit 31, and the count data in the address counter 32 is stored in the number storage unit 3.
Whether the number of still image recording tracks stored in No. 3 (in this case, “5”) is exceeded, that is, whether or not the writing processing of the date data of all still image recording tracks in the order storage unit 31 in the ascending order is completed. The third comparison unit 34 makes a comparison determination (steps P17 and P18).

In this case, the number of still image recording tracks stored in the number storage section 33 is "5" and the count data of the address counter 32 is "3". The counter 27 is reset and the track instruction number is set to "1" (step P19).

Then, it is determined whether or not the selection flag is set in the date data of the date data storage unit 23 corresponding to this track instruction number (step P20). In this case, since the selection flag is not set for the date data “6th” corresponding to the track No. “1”, step P2
In 0, it is determined to be "No", and the process returns to the step P5.

At this time, the track number "1" is transferred and stored again from the track number counter 27 to the track number storage section 28, and the date data "6 days" corresponding to this track number "1" is stored in the date data. Part 23 to the first register 2
5a is transferred and stored (steps P5 and P6).

Then, the processes of steps P7 to P11 are repeated, and the date data "6 days" of the track number "1" is compared with the date data "7 days" of the track numbers "2" and "3". After the judgment is made, when the track No. of the track No. counter 27 is counted up to the track "4" in Step P7, this track No.
Since the selection flag is set in advance in step P16 for the date data "3 days" in the date data storage unit 23 corresponding to No. "4", "Yes" in step P9.
s ”, and the process returns to step P7.

Further, in step P7, the track No.
When the track No. of the counter 27 is counted up to the track No. "5", a selection flag is set in advance in step P16 for the date data "4th" in the date data storage unit 23 corresponding to this track No. "5". Therefore, it is determined to be “Yes” in Step P9, and the process returns to Step P7.

Then, the count data in the track number counter 27 is again counted up to the track "6" (step P7). As a result, the second comparison unit 30
Then, since it is determined by comparison that the final track "5" has been exceeded, it is determined "Yes" in step P8, and the track number (third minimum date data having the third minimum date data stored in advance in the track number storage unit 28 in step P5) In this case, "1") is transferred and stored in the order storage unit 31 (step P14).

Then, the memory address of the date data storage section 23 corresponding to the track number "1" in the track number storage section 28 is instructed by the address control section 24, and a selection flag is set for the memory address ( Steps P15, P16).

At this time, the count data in the address counter 32 is incremented by (+1), the track No memory address in the order storage unit 31 is advanced, and the count data in the address counter 32 is stored in the number storage unit 3.
Whether the number of still image recording tracks stored in No. 3 (in this case, “5”) is exceeded, that is, whether or not the writing processing of the date data of all still image recording tracks in the order storage unit 31 in the ascending order is completed. The third comparison unit 34 makes a comparison determination (steps P17 and P18).

In this case, the number of still image recording tracks stored in the number storage section 33 is "5" and the count data of the address counter 32 is "4". The counter 27 is reset and the track instruction number is set to "1" (step P19). Then, it is determined whether or not the selection flag is set in the date data of the date data storage unit 23 corresponding to the track instruction number (step P20).

In this case, since the selection flag is set in the above step P16 for the date data "6th" corresponding to the track number "1", "Yes" in step P20.
s ", the count data of the track number counter 27 is counted up to track" 2 "(step P21). In this case, since the selection flag is not set for the date data "7th" corresponding to the track No. "2", it is determined as "No" in step P20, and the process returns to step P5.

At this time, the track number "2" is transferred and stored from the track number counter 27 to the track number storage unit 28, and the date data "7th" corresponding to this track number "2" is stored in the date data storage unit. 23 to the first register 25
The data is transferred to and stored in a (steps P5 and P6).

Then, by the processing of steps P7 to P11, after the date data "7 days" of the track No. "2" is compared with the date data "7 days" of the track No. "3", the determination is made in Step P7. When the track No. of the track No. counter 27 is counted up to the track "4", the date data "3rd" in the date data storage unit 23 corresponding to this track No. "4" is previously stored in Step P.
Since the selection flag has been set in step 16, it is determined to be "Yes" in step P9, and the process returns to step P7.

Further, in step P7, the track No.
When the track No. of the counter 27 is counted up to the track No. "5", a selection flag is set in advance in step P16 for the date data "4th" in the date data storage unit 23 corresponding to this track No. "5". Therefore, it is determined to be “Yes” in Step P9, and the process returns to Step P7.

Then, the count data in the track number counter 27 is again counted up to the track "6" (step P7). As a result, the second comparison unit 30
Then, since it is determined by comparison that the final track "5" has been exceeded, it is determined "Yes" in Step P8, and the track number (4) having the fourth minimum date data stored in the track No storage unit 28 in advance in Step P5 ( In this case, “2”) is transferred and stored in the order storage unit 31 (step P14).

Then, the memory address of the date data storage section 23 corresponding to the track No. "2" in the track No. storage section 28 is instructed by the address control section 24, and a selection flag is set for that memory address ( Steps P15, P16).

At this time, the count data in the address counter 32 is incremented (+1) to advance the track No memory address in the sequence storage unit 31, and the count data in the address counter 32 is stored in the number storage unit 3.
Whether the number of still image recording tracks stored in No. 3 (in this case, “5”) is exceeded, that is, whether or not the writing processing of the date data of all still image recording tracks in the order storage unit 31 in the ascending order is completed. The third comparison unit 34 makes a comparison determination (steps P17 and P18).

In this case, the number of still image recording tracks stored in the number storage section 33 is "5" and the count data of the address counter 32 is "5". The counter 27 is reset and the track instruction number is set to "1" (step P19).

Then, it is determined whether or not the selection flag is set in the date data of the date data storage section 23 corresponding to this track instruction number (step P20). In this case, since the selection flag was set in step P16 for the date data "6th" corresponding to the track number "1", it is determined "Yes" in step P20, and the count data of the track number counter 27 is The track is counted up to "2" (step P21).

Further, since the selection flag is set in the above step P16 for the date data "7th" corresponding to the track number "2", "Yes" in step P20.
And the count data of the track No counter 27 is counted up to track “3” (step P
21).

In this case, since the selection flag is not set for the date data "7th" corresponding to the track No. "3", it is judged "No" at step P20, and the process returns to step P5. At this time, the track number “3” is transferred and stored from the track number counter 27 to the track number storage unit 28, and the date data “7th” corresponding to this track number “3” is stored in the date data storage unit 23. The data is transferred and stored in the 1 register 25a (steps P5 and P6).

After the selection flags of the track No. "4" and the track No. "5" are confirmed by the processing of steps P7 to P9, the count data in the track No counter 27 is again track "6" in step P7. It is counted up to 6 ". As a result, the second comparing section 30 makes a comparison judgment that the final track "5" has been exceeded, and therefore "Yes" is given in step P8.
s ”, and the track number (“ 3 ”in this case) having the fifth minimum date data stored in advance in the track number storage unit 28 in step P5 is transferred and stored in the order storage unit 31 (step P14). .

Here, the order storage unit 31 stores the track numbers of still image recording tracks on the floppy disk in the order of date data "3 days" → "4 days" → "6 days" → "7".
On the day, track "4" → "5" → "1" → "2" →
This means that "3" is stored in the array.

Thereafter, the memory address of the date data storage section 23 corresponding to the track number "3" in the track number storage section 28 is instructed by the address control section 24, and a selection flag is set for the memory address. (Steps P15 and P16).

At this time, the count data in the address counter 32 is incremented by (+1), the track No memory address in the order storage unit 31 is advanced, and the count data in the address counter 32 is stored in the number storage unit 3.
Whether the number of still image recording tracks stored in No. 3 (in this case, “5”) is exceeded, that is, whether or not the writing processing of the date data of all still image recording tracks in the order storage unit 31 in the ascending order is completed. The third comparison unit 34 makes a comparison determination (steps P17 and P18).

In this case, since the number of still picture recording tracks stored in the number storage section 33 is "5" and the count data of the address counter 32 is "6", it is determined "Yes" in step P18, and the address is determined. The count data of the counter 32 is reset, and the track number (“4” in this case) of the head memory address in the order storage unit 31 is designated (step P22).

If the reproduction key is operated without turning off the camera power or ejecting the floppy disk, the first track number ("4" in this case) shown in the sequence storage unit 31 is displayed. The head movement control unit 17 is controlled based on the above, and the magnetic head in the magnetic disk device 16 causes the track “4” of the floppy disk.
The movement is set to the position (steps P23 to P25).

Then, in the magnetic disk device 16, the still image data recorded on the track "4" of the floppy disk is read out, and the switch circuit 18 and the demodulation section 19 are read.
The signal is output and reproduced as a NTSC video signal from the encoder 20 via (step P26).

As a result, first, the still image recorded on track "4" of the floppy disk and having the image pickup date of "3 days" is reproduced. After that, when the reproduction key is further operated without turning off the camera power or ejecting the floppy disk, the address counter 32 is counted up and the sequence storage unit 31
The second track No. (in this case, "5") is designated (steps P27 to P29).

Then, in the magnetic disk device 16, the still image data recorded on the track "5" of the floppy disk is read out, and the switch circuit 18 and the demodulation section 19 are read.
The signal is output and reproduced as an NTSC video signal from the encoder 20 via (step P26).

As a result, following the reproduction of the still image captured on "3 days", the still image recorded on track "5" of the floppy disk and having the capturing date of "4 days" is reproduced. become.

After that, when the reproduction key is repeatedly operated, the processes of steps P27 to P29 → P25, P26 are repeatedly executed, and the still image of which the image pickup date is recorded on the floppy disk track “1” is “6th”. , The still image recorded on the track “2” with the image pickup date “7th”, and the still image data recorded on the floppy disk in order of the image pickup date are output and reproduced.

Therefore, according to the electronic still camera having the above structure, the image pickup date data corresponding to each still image data recorded on the index track of the floppy disk is
Since the still image recording tracks are once read out to the date data storage unit 23 and the still image recording tracks are sorted and stored in the order storage unit 31 in the order of the image pickup date, the magnetic disk device 16 is based on the track No. stored in the order storage unit 31. If the magnetic head is controlled to move, a plurality of still image data recorded on the floppy disk can be sequentially output and reproduced in the order of the image pickup date.

[0096]

As described above, according to the present invention, a plurality of still image data is recorded and reproduced on a storage medium, and an image data recording means for recording a plurality of still image data on the storage medium, and Date data recording means for recording date data corresponding to each still image data recorded in the storage medium in the storage medium, judgment means for judging the magnitude relationship between the date data recorded in the storage medium, and this judgment means When the still image data recorded by a plurality of captured images is reproduced, the reproducing device is configured to reproduce the still image data recorded in the storage medium in the order according to the magnitude relation of the date data obtained by It is possible to provide an image data processing device capable of outputting data in the order of shooting dates.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a first electronic circuit in an electronic still camera according to an embodiment of an image data processing device of the present invention.

FIG. 2 is a block diagram showing the configuration of a second electronic circuit in the electronic still camera according to the embodiment of the image data processing device of the present invention.

FIG. 3 is a flowchart showing image capturing / recording processing in the electronic still camera.

FIG. 4 is a first half flowchart showing a reproduction process of image pickup data in the electronic still camera.

FIG. 5 is a second half flow chart showing a reproduction process of image pickup data in the electronic still camera.

[Explanation of symbols]

10 ... Control part, 11 ... Release switch and operation command key, 12 ... Imaging part, 13 ... Decoder, 14 ... FM modulator, 15, 18 ... Switch circuit, 16 ... Magnetic disk device, 17 ... Head movement control part, 19 ... demodulation section, 20 ... encoder, 21 ... data signal processing section, 22 ... date counter, 23 ... date data storage section, 24 ... address control section,
25a ... 1st register, 25b ... 2nd register, 26 ...
1st comparison part, 27 ... Track No counter, 28 ... Track No storage unit, 29 ... Final track No storage unit, 30 ... Second
Comparing unit, 31 ... Sequence storing unit, 32 ... Address counter,
33 ... Number storage unit, 34 ... Third comparing unit.

Claims (1)

[Claims] 1. An image data processing apparatus for recording and reproducing a plurality of still image data in a storage medium, image data recording means for recording a plurality of still image data in the storage medium, and each of the image data recorded in the storage medium. Date data recording means for recording the date data corresponding to the still image data in the storage medium, judging means for judging the magnitude relation of the date data recorded in the storage medium, and the date data obtained by the judging means. An image data processing device, comprising: a reproducing unit that reproduces still image data recorded in the storage medium in an order according to a size relationship.