JPH1175148A - Digital camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively record and manage the digital data of both dynamic and static image recording modes by performing the control to select the dynamic or static image recording mode and to record the dynamic and static images to the 1st and 2nd storage means respectively based on the mode selection result. SOLUTION: When a dynamic image release SW 31 is pushed, a main microcomputer 8 converts the dynamic images received by an image pickup device 3 into the digital data of an MPEG form which are recorded on a recording medium of a dynamic image mode storage part 21. When a static image release SW 32 is pushed during execution of a dynamic image receding mode, the microcomputer 8 extracts the images received by the device 3 from a frame memory 9 and converts them into the digital data of a JPEG form to record them on a recording medium of a static image mode storage part 22. Thus, both parts 21 and 23 are separately prepared for the dynamic and static images respectively to effectively record and manage the digital data of both dynamic and static image recording modes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital camera, and more particularly, to a digital camera that receives an image obtained through an imaging lens by a solid-state imaging device and records the image as digital data.

[0002]

2. Description of the Related Art A digital camera has a configuration in which an image obtained through an imaging lens is photoelectrically converted by a solid-state imaging device such as a CCD, and the obtained image signal is handled as digital data.

There are two types of digital cameras: a digital video camera that records digital data on a tape or the like in a moving image recording mode, and a digital still camera that records digital data on a semiconductor memory or the like in a still image recording mode. doing.

A digital video camera mainly for recording a moving image, which has a still image recording mode, and a digital still camera mainly for recording a still image, And the like have been proposed.

[0005]

As described above, although a digital camera capable of recording in both the moving image mode and the still image mode has been proposed, the recording media for recording digital data include moving images and still images. No particular consideration was given to the management of paintings.

[0006] For example, in an image pickup and storage device described in Japanese Patent Application Laid-Open No. 8-65581, a configuration is used in which moving image digital data and still image digital data are recorded on the same or similar recording medium (memory or the like). It has become.

As described above, when moving images and still images are recorded on the same type of medium, data having different image formats coexist, resulting in a problem that data management becomes complicated.

The use of recorded digital data is greatly different between the moving image recording mode and the still image recording mode. For example, in the case of a moving image recording mode, recorded digital data is often reproduced as it is by a digital camera. Accordingly, the reproduced video signal is supplied to a liquid crystal display device of a digital camera or an external image display device. Also,
The recorded tape may be taken out and played back by an external playback device.

On the other hand, in the case of the still image recording mode, it is general that a digital camera reproduces only temporary confirmation. That is, a recording medium such as a semiconductor memory is extracted from the digital camera and inserted into a personal computer. In general, the personal computer processes digital data of a still image.

[0010] As described above, despite the different forms of use of the obtained digital data between the moving image recording mode and the still image recording mode, efficient recording and management of digital data is performed. Did not.

Accordingly, an object of the present invention is to realize a digital camera capable of efficiently recording and managing digital data in a moving image recording mode and digital data in a still image recording mode.

[0012]

[Means for Solving the Problems]

(1) The invention according to claim 1 is a photoelectric conversion means for converting an image into an electric signal by photoelectrically converting an image, and a means for A / D converting the electric signal obtained by the photoelectric conversion means into a digital signal. A selection unit for selecting a moving image recording mode or a still image recording mode, a first storage unit, a second storage unit detachably attached to the main body, and a selection result of the selection unit. Control means for controlling the recording of the digital signal in the first storage means in the moving image recording mode and the recording of the digital signal in the second storage means in the still image recording mode. A digital camera characterized by the following.

In this digital camera, the moving image is recorded in the first storage means and the still image is stored in the second storage means based on the selection result by the selection means for selecting the moving image recording mode or the still image recording mode. The control means performs control for recording the information in the storage area.

By providing separate storage means for a moving image and a still image, digital data in the moving image recording mode and digital data in the still image recording mode can be efficiently recorded and managed. become.

(2) In the digital camera described in (1), in the digital camera according to (1), the control means is configured to control the first camera in a moving image recording mode based on a selection result by a selection means.
During recording in the storage means, control is performed such that recording in the still image recording mode is performed in the second storage means.

In this digital camera, a still image is recorded during the recording in the first storage means in the moving image recording mode based on the selection result by the selecting means for selecting the moving image recording mode or the still image recording mode. Is stored in the second storage means by the control means.

By controlling the still image recording in the moving image recording mode, it is only possible to efficiently record and manage the digital data in the moving image recording mode and the digital data in the still image recording mode. In addition, digital data of a still image can be recorded more reliably.

(3) The invention according to claim 3 is characterized in that, in the digital camera according to (1), the first storage means has a recording medium detachable from the main body of the digital camera.

In this digital camera, the recording medium of the first storage means is detachable from the main body. Therefore, by removing the recording medium from the digital camera and inserting it into an external reproducing apparatus, reproduction of a moving image can be performed. It can be easily performed by the reproducing device of the above.

As described above, the first storage means detachable from the main body not only enables efficient recording and management of digital data in the moving image recording mode and digital data in the still image recording mode, but also makes it possible. In addition, it becomes easier to handle digital data of moving images.

(4) The invention according to claim 4 is the digital camera according to (1), wherein the second storage means has a semiconductor memory as a storage medium. In this digital camera, since the storage medium of the second storage means is a semiconductor memory, a still image can be processed in the computer by extracting the semiconductor memory from the digital camera and inserting it into the computer.

By using the semiconductor memory as the second storage means provided as a storage medium, digital data in the moving image recording mode and digital data in the still image recording mode can be efficiently recorded and managed. Not only becomes possible, but also the handling of digital data of still images and image processing become easier.

(5) The invention according to claim 5 is a photoelectric conversion means for converting an image into an electric signal by photoelectric conversion, and A / D converting the electric signal obtained by the photoelectric conversion means into a digital signal. Means for converting, a selecting means for selecting a moving image recording mode, a moving image reproducing mode, a still image recording mode, or a still image reproducing mode; a first storage means for recording the moving image; A second storage unit that records the still image in the storage medium, and the digital signal in a moving image recording mode is recorded in the first storage unit based on a selection result of the selection unit,
Control means for controlling recording of the digital signal in the still image recording mode in the second storage means; and image display for displaying an image based on the digital signal recorded in the still image recording mode or the moving image recording mode. A digital camera comprising: means for selecting an image for selectively recording any of a plurality of frames obtained in the moving image recording mode as a still image.

In this digital camera, a moving image is recorded in the first storage means based on a selection result by the selection means for selecting the moving image recording mode, the moving image reproduction mode, the still image recording mode, or the still image reproduction mode. When recording a still image in the second storage unit, an image for selectively recording any of a plurality of frames constituting the moving image as a still image based on the selection result by the image selection unit. The control unit controls the selection.

By providing separate storage means for a moving image and a still image, digital data in the moving image recording mode and digital data in the still image recording mode can be efficiently recorded and managed. become.

(6) The invention according to claim 6 is characterized in that:
In the digital camera described above, the control means controls the recording of a still image in the second storage means during the recording in the first storage means in the moving image recording mode based on the selection result by the selection means. It is characterized by performing.

In this digital camera, based on the selection result by the selection means for selecting the moving image recording mode or the still image recording mode, during recording in the first storage means in the moving image recording mode, The control unit performs control to record a still image in the second storage unit.

By controlling the recording of a still image in the moving image recording mode, it is only possible to efficiently record and manage digital data in the moving image recording mode and digital data in the still image recording mode. In addition, digital data of a still image can be recorded more reliably.

(7) The invention according to claim 7 is characterized in that:
In the digital camera described above, the control means may be configured to, while reproducing an image in the moving image recording mode on the image means based on the selection result by the selection means, convert the still image to the second image based on the selection result by the image selection means. Characterized by performing control for recording in the storage means.

In this digital camera, based on the result of the selection by the selection means for selecting the moving image recording mode or the still image recording mode, while the moving image is being reproduced from the first storage means, the moving image is displayed in parallel. The control unit performs control such that any one of a plurality of frames constituting the image is selectively recorded as a still image in the second storage unit.

By controlling the recording of a still image during the reproduction of a moving image, not only the digital data in the moving image recording mode and the digital data in the still image recording mode can be efficiently recorded and managed, but also Furthermore, the recording of digital data of a still image can be reliably performed without missing a photo opportunity.

(8) The invention according to claim 8 is characterized in that:
In the digital camera described above, the first storage means
It has a digital camera body and a removable recording medium.

In this digital camera, since the recording medium of the first storage means is detachable from the main body, the recording medium can be taken out of the digital camera and inserted into an external reproducing apparatus to reproduce moving images. It can be easily performed by the reproducing device of the above.

As described above, the first storage means detachable from the main body not only enables efficient recording and management of the digital data in the moving image recording mode and the digital data in the still image recording mode, but also makes it possible. In addition, it becomes easier to handle digital data of moving images.

(9) The ninth aspect of the present invention is the above (5).
In the digital camera described above, the second storage means has a semiconductor memory as a storage medium. In this digital camera, since the storage medium of the second storage means is a semiconductor memory, by extracting the semiconductor memory from the digital camera and inserting it into the computer,
Still images can be processed by the computer.

As described above, by using the semiconductor memory as the second storage device having the storage medium, the digital data in the moving image recording mode and the digital data in the still image recording mode can be efficiently recorded and managed. Not only becomes possible, but also the handling of digital data of still images and image processing become easier.

[0037]

Embodiments of the present invention will be described below in detail. In the present embodiment, a digital camera capable of recording / reproducing moving images and recording / reproducing still images will be described as an example of a digital camera.

<Configuration of Digital Camera> First, the configuration of a digital camera used in the present embodiment will be described with reference to FIG.

FIG. 1 is a functional block diagram showing an overall electrical schematic configuration of a digital camera according to an embodiment of the present invention. In the digital camera shown in FIG. 1, a light image obtained through an optical system including a lens 1, an aperture stop 2, and the like is formed on a light receiving surface of an image sensor 3 such as a CCD. At this time, the lens 1 and the aperture stop 2
Focus drive circuit 16 and aperture drive circuit 15
Driven by

Here, the image pickup device 3 photoelectrically converts the light image formed on the light receiving surface into a charge amount, and outputs an analog image signal by a transfer pulse from the CCD drive circuit 19.
Note that the CCD drive circuit 19 can control the shutter speed while driving the image sensor 3.

The analog image signal output from the image sensor 3 is reduced in noise by CDS (correlated double sampling) processing in the pre-processing circuit 4 and gain is adjusted by AGC to expand the dynamic range. Is performed.

After being converted into a digital image signal by the A / D converter 5, the signal processing circuit 6 performs luminance processing and color processing on the digital video signal (for example, a luminance signal (Y) and a color difference signal ( The data is converted to digital data composed of Cr, Cb) and output to the memory controller 7.

A digital video signal is output from the signal processing circuit 6 to the image display unit 18, and an image picked up by the image pickup device 3 and a reproduced image from storage means described later are displayed on the image display unit 18. It is configured to be able to display an image. The image display unit 18 can display various information in addition to the image.

The function switching is performed by exchanging data with the main microcomputer 8, and the exposure information, the focus signal, and the white balance information of the image sensor signal can be output to the main microcomputer 8 as needed.

The main microcomputer 8 is mainly used for photographing,
The sequence of recording and reproduction is controlled, and further, as necessary, compression and reproduction of the photographed image and serial port transmission with an external device are performed.

Here, the MPEG system standardized by ISO and IEC is used as image compression in the moving image recording mode, and CCITT is used as image compression in the still image recording mode.
The description will be made on the assumption that the JPEG system (or JBIG system) standardized by ISO (at that time) and ISO is used.

The memory controller 7 stores the digital image data input from the signal processing circuit 6 in the frame memory 9 or outputs the image data in the frame memory 9 to the signal processing circuit 6.

The frame memory 9 is an image memory capable of storing image data of at least one screen. For example, VRAM, SRAM, DRAM and the like are generally used. Here, VRAM which can operate independently of the CPU bus is used. It shall be.

The strobe 12 is configured so that the light emission timing can be obtained by the main microcomputer 8 which controls the photographing sequence. The serial port driver 13 performs signal conversion for performing information transmission between the camera body and information between external devices. As the serial transmission means, RS23
There are recommended standards for performing serial communication such as 2C and RS422A, but here, RS232C is used.

The sub-microcomputer 14 controls a man-machine interface such as a switch for recording, reproduction and frame advance, and transmits information to the main microcomputer 8 as needed.

The aperture driving circuit 15 is constituted by, for example, an auto iris, and changes the aperture value of the optical aperture 2 under the control of the main microcomputer 8. The focus drive circuit 16 is configured by, for example, a stepping motor, and changes the lens position under the control of the main microcomputer 8 so that the optical focus surface of the subject is appropriately adjusted on the image sensor 3.

The moving image mode storage section 21 constitutes a first storage means, in which image data is subjected to image compression processing and the like by the main microcomputer 8 and digital data in the MPEG format via the frame memory 9 is recorded.

The moving image mode storage unit 21
Is preferably provided with a large-capacity recording medium, such as a recording / reproducing apparatus using a tape or a disk detachable from the main body, or a hard disk device detachable from the main body.

The still image mode storage section 22 constitutes a second storage means, and is subjected to image compression processing and the like by the main microcomputer 8 and is subjected to JPEG via the frame memory 9.
Format digital data is recorded.

The still image mode storage section 22
Corresponds to a recording / reproducing device using a semiconductor memory detachable from the main unit, a hard disk device detachable from the main unit, and the like. When exchanging data with an external computer, the storage unit 22 for the still image mode is used.
Is preferably various semiconductor memories compatible with PC cards and the like.

The moving image release SW 31 is a release switch for selecting a moving image recording mode (instructing start / stop of recording). The selection is supplied to the sub-microcomputer 14. The still image release SW 32 is a release switch for selecting a still image recording mode, and this selection is supplied to the sub-microcomputer 14. The moving image release SW31, the still image release SW32 and the sub-microcomputer 1
4 together with the selection means.

The moving image reproducing SW 33 is an operation switch for selecting a moving image reproducing mode (instructing start / stop of reproduction), and this selection is supplied to the sub-microcomputer 14. The frame feed SW 34 is a switch for finding a desired image during reproduction of a moving image or a still image, and this selection is supplied to the sub-microcomputer 14. This frame feed SW
34, the moving image reproducing SW 33 and the sub-microcomputer 14 constitute an image selecting means.

Although the configuration shown in FIG. 1 shows a case where image compression and expansion are performed in the main microcomputer 8, a dedicated circuit for compression / expansion may be arranged on the CPU bus.

<Operation Example of Digital Camera> Here,
A series of operations of shooting in the moving image mode and the still image mode will be described with reference to a time chart of FIG. The operation mode of the camera is set from various switch information (not shown) connected to the sub-microcomputer 14, and information for photographing is input to the main microcomputer 8 as serial information. The main microcomputer 8 sets the memory controller 7 and the serial port driver 13 according to this information.

First, when the moving image release SW 31 connected to the sub-microcomputer 14 is pressed (FIG. 2 (a) a1),
The sub-microcomputer 14 detects this moving image recording mode start instruction. Then, the sub microcomputer 14 instructs the main microcomputer 8 to start the moving image recording mode.

Thus, the main microcomputer 8 converts the moving image received by the image sensor 3 into digital data of the MPEG format and records it on the recording medium of the moving image mode storage unit 21 (FIG. 2 (d) d1 to d1). ). This moving image recording mode continues until the moving image release SW 31 is pressed again.

When the still image release switch 32 is pressed during execution of the moving image recording mode (c2 in FIG. 2 (c)).
(D) d2), the sub-microcomputer 1
4 detects. Then, the sub microcomputer 14 instructs the main microcomputer 8 to record a still image.

Thus, the main microcomputer 8 operates the still image release SW 3 for the image received by the image sensor 3.
The image of the frame at the timing when the button 2 is pressed is extracted from the frame memory 9, converted into JPEG digital data, and stored in the storage medium of the storage unit 22 for the still image mode (FIG. 2 (f) f2).

Similarly, when the still image release SW 32 is pressed during execution of the moving image recording mode (FIG. 2).
(C) c3, (d) d3), the sub-microcomputer 14 detects the instruction to record a still image, and instructs the main microcomputer 8 to record a still image. Accordingly, the main microcomputer 8 extracts, from the frame memory 9, the image of the frame at the timing when the still image release SW 32 is pressed from the moving image received by the image sensor 3, converts the image into digital data in the JPEG format, and It is stored in the storage medium of the image mode storage unit 22 (f3 in FIG. 2 (f)).

As described above, by preparing separate storage means corresponding to the moving image recording mode and the still image recording mode, a still image can be recorded even in the moving image recording mode. The storage unit 22 for the still image mode
Equipped with a removable storage medium from the camera body,
Digital data of a still image can be easily handled by an external computer or the like. By using a semiconductor memory as a storage medium in this case, handling of digital data is further facilitated.

Also, by providing a recording medium detachable from the digital camera main body in the moving image mode storage section 21, it is possible to easily reproduce a moving image in various external moving image reproducing apparatuses. In this case, by using a recording medium (tape, disk, or the like) suitable for use in an external moving image reproducing apparatus, the handling of moving image digital data becomes easy.

Since the still image can be recorded in the moving image recording mode, not only either the moving image or the still image but also both the moving image and the still image are simultaneously recorded and managed. It becomes possible. For this reason, it is possible to record the entire motion as a moving image and to reliably record an image at a desired timing as a still image. In this case, it is possible to confirm the recording timing of the still image while displaying the moving image being recorded on the image display unit 18, but determine the recording timing of the still image using the optical finder. Is also good.

<Operation Example of Digital Camera> Here,
A series of operations of recording a moving image, reproducing a moving image, and capturing a still image will be described with reference to a time chart of FIG. The operation mode of the camera is set from various switch information (not shown) connected to the sub-microcomputer 14, and information for photographing is input to the main microcomputer 8 as serial information. The main microcomputer 8 sets the memory controller 7 and the serial port driver 13 according to this information.

First, when the moving picture release SW 31 connected to the sub-microcomputer 14 is pressed (FIG. 3 (a) a1),
The sub-microcomputer 14 detects an instruction to start recording in the moving image recording mode. Then, the sub microcomputer 14 instructs the main microcomputer 8 to start recording in the moving image recording mode. Thus, the main microcomputer 8 converts the moving image received by the image sensor 3 into digital data in the MPEG format and records the digital data in the recording medium of the storage unit 21 for the moving image mode (d1 in FIG. 3D). This moving image recording mode is continued until the moving image release SW 31 is pressed again (FIG. 3).
(A) a2 to (d) d2).

When the moving image reproduction SW 33 connected to the sub-microcomputer 14 is depressed (b3 in FIG. 3B), the sub-microcomputer 14 detects an instruction to start recording in this moving image recording mode. Then, the sub microcomputer 14 instructs the main microcomputer 8 to start moving image reproduction. Thus, the main microcomputer 8 converts the MPEG digital data recorded in the moving image mode storage unit 21 into a video signal and displays the video signal on the image display unit 18 (FIG. 3 (e) e3). This moving image reproduction is continued until a reproduction stop SW (not shown) is pressed.

During the reproduction of this moving image (FIG. 3 (e) e3
3), the still image release SW 32 is pressed (FIG. 3).
(C) c4, (e) e2), the sub-microcomputer 14 detects a recording instruction in the still image recording mode. And
The sub microcomputer 14 instructs the main microcomputer 8 to record in the still image recording mode.

As a result, the main microcomputer 8 extracts, from the frame memory 9, the image of the frame at the timing when the still image release SW 32 is pressed for the moving image being reproduced (FIG. 3 (e) e 4), and The data is converted into digital data and stored in the storage medium of the storage unit 22 for the still image mode (f4 in FIG. 3 (f)).

Similarly, when the still image release SW 32 is pressed during reproduction of a moving image (FIG. 3 (c) c5).
(E) e5), the sub-microcomputer 14 detects a recording instruction in the still image recording mode, and instructs the main microcomputer 8 to perform recording in the still image recording mode. Accordingly, the main microcomputer 8 extracts the image of the frame at the timing when the still image release SW 32 is pressed from the frame memory 9 for the moving image being reproduced (FIG. 3 (e) e).
5) Convert the data into digital data in JPEG format and store it in the storage medium of the storage unit 22 for the still image mode (f5 in FIG. 3 (f)).

In the above-described recording in the still image recording mode during the reproduction of the moving image, the moving image being reproduced is fed forward or backward by using the frame feed SW 34, and
Pause or the like may be performed as necessary, and a desired image may be selected before instructing recording in the still image recording mode.

In recording in a still image recording mode during recording and reproduction of a moving image, a method of converting MPEG format digital data to normal digital data and then converting the format to JPEG format digital data, and a method of converting MPEG format digital data to digital data. A method of directly converting to digital data in JPEG format is considered.

As described above, by preparing separate storage means corresponding to the moving image recording mode and the still image recording mode, recording in the still image recording mode becomes possible even during reproduction of a moving image. . Since the still image can be recorded during the reproduction of the moving image in this manner, the still image can be recorded in the moving image recording mode first, and the still image from the moving image can be recorded and managed in the still image recording mode later. Will be possible. For this reason, the overall movement and flow are recorded as moving images,
From this moving image, an image at a desired timing can be reliably recorded (extracted) as a still image. Therefore, there is no fear of missing a photo opportunity.

Further, since the still image mode storage section 22 has a storage medium detachable from the camera body, the digital data of the still image can be easily handled by an external computer or the like. By using a semiconductor memory as a storage medium in this case, handling of digital data is further facilitated.

Also, by providing a recording medium detachable from the digital camera body in the moving image mode storage section 21, reproduction of moving images recorded in various external moving image recording devices can be easily performed on the digital camera side. Become like In this case, by using a recording medium (tape, disk, or the like) suitable for use in an external moving image recording device, it becomes easy to handle digital data of the moving image.

<Operation Example of Digital Camera> The operation example described above (recording in the still image recording mode is possible during recording in the moving image recording mode) and the operation example (moving an image being reproduced in the still image recording mode) By configuring the operation program of the main microcomputer 8 to have both functions (recordable), a desired image appears while observing the image display unit 18 regardless of the moving image being recorded or the moving image being reproduced. By pressing the still image release SW 32 at the moment, a desired still image can be reliably recorded.

[0080]

As described above in detail with the embodiments and examples, according to each invention described in this specification, the following effects can be obtained.

(1) In the digital camera according to the first aspect of the invention, a moving image is recorded in the first storage means based on the selection result by the selection means for selecting the moving image recording mode or the still image recording mode. The control means performs control for recording a still image in the second storage means. By providing separate storage means for moving images and still images,
It becomes possible to efficiently record and manage digital data in the moving image recording mode and digital data in the still image recording mode.

(2) In the digital camera according to the second aspect of the present invention, in the above (1), the moving image recording mode or the still image recording mode is selected based on the selection result by the selecting means for selecting the moving image recording mode or the still image recording mode. During the recording in the first storage unit, the control unit performs control to record a still image in the second storage unit.

By controlling the recording of a still image in the moving image recording mode, it is only possible to efficiently record and manage digital data in the moving image recording mode and digital data in the still image recording mode. In addition, digital data of a still image can be recorded more reliably.

(3) In the digital camera according to the third aspect of the present invention, in (1), the recording medium of the first storage means for recording a moving image is detachable from the main body. The moving image can be easily reproduced by another reproducing device by extracting the video from the device and inserting it into an external reproducing device.

As described above, the first storage means which is detachable from the main body can efficiently record and manage digital data in the moving image recording mode and digital data in the still image recording mode. In addition, it becomes easier to handle digital data of moving images.

(4) In the invention of the digital camera according to claim 4, in (1), since the storage medium of the second storage means is a semiconductor memory, the semiconductor memory is extracted from the digital camera and inserted into the computer. This allows the computer to process still images.

As described above, by using the semiconductor memory as the second storage means provided with the storage medium, the digital data in the moving image recording mode and the digital data in the still image recording mode can be efficiently recorded and managed. Not only becomes possible, but also the handling of digital data of still images and image processing become easier.

(5) In the digital camera according to the fifth aspect of the present invention, based on the selection result by the selecting means for selecting the moving image recording mode, the moving image reproducing mode, the still image recording mode, or the still image reproducing mode, the moving image When the image is recorded in the first storage unit and the still image is recorded in the second storage unit, based on the selection result by the image selection unit,
The control unit performs image selection control for selectively recording any of a plurality of frames constituting a moving image as a still image.

By providing separate storage means for a moving image and a still image, digital data in the moving image recording mode and digital data in the still image recording mode can be efficiently recorded and managed. become.

(6) In the digital camera according to the sixth aspect of the present invention, in the above (5), in the moving image recording mode based on the selection result by the selecting means for selecting the moving image recording mode or the still image recording mode. While recording in the first storage means, the control means performs control to record a still image in the second storage means in parallel.

By controlling the still image recording in the moving image recording mode, only the digital data in the moving image recording mode and the digital data in the still image recording mode can be efficiently recorded and managed. In addition, digital data of a still image can be recorded more reliably.

(7) In the digital camera according to the seventh aspect of the present invention, in the above (5), based on the selection result by the selection means for selecting the moving image recording mode or the still image recording mode, the moving image is converted to the second image. During playback from the first storage unit, the control unit performs control such that one of a plurality of frames constituting the moving image is selectively recorded as a still image in the second storage unit in parallel.

By controlling the recording of a still image during reproduction of a moving image, not only the digital data in the moving image recording mode and the digital data in the still image recording mode can be efficiently recorded and managed, but also Furthermore, the recording of digital data of a still image can be reliably performed without missing a photo opportunity.

(8) In the digital camera according to the eighth aspect of the present invention, in (5), since the recording medium of the first storage means is detachable from the main body, the recording medium is taken out of the digital camera and externally connected. In this case, the moving image can be easily reproduced by another reproducing apparatus.

As described above, the first storage means detachable from the main body can efficiently record and manage digital data in the moving image recording mode and digital data in the still image recording mode. In addition, it becomes easier to handle digital data of moving images.

(9) In the digital camera according to the ninth aspect of the present invention, in (5), since the storage medium of the second storage means is a semiconductor memory, the semiconductor memory is extracted from the digital camera and inserted into a computer. This allows the computer to process still images.

As described above, by using the semiconductor memory as the second storage means provided with the storage medium, the digital data in the moving image recording mode and the digital data in the still image recording mode can be efficiently recorded and managed. Not only becomes possible, but also the handling of digital data of still images and image processing become easier.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing a configuration of a digital camera used in an embodiment of the present invention.

FIG. 2 is a time chart showing an operation state of the digital camera used in the description of the first embodiment of the present invention.

FIG. 3 is a time chart showing an operation state of a digital camera used in the description of a second embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 lens 2 aperture stop 3 image sensor 4 pre-processing circuit 5 A / D converter 6 signal processing circuit 7 memory controller 8 main microcomputer 9 frame memory 12 strobe 13 serial port driver 14 sub-microcomputer 15 aperture drive circuit 16 focus drive circuit 17 video Amplifier 18 Image display unit 19 CCD drive circuit 21 Storage unit for moving image mode 22 Storage unit for still image mode 31 Video release SW 32 Still image release SW 33 Video playback SW 34 Frame feed SW

Claims (9)

[Claims] A photoelectric conversion unit for converting an image into an electric signal by photoelectrically converting an image; a unit for A / D converting an electric signal obtained by the photoelectric conversion unit into a digital signal; Selecting means for selecting a still image recording mode; first storing means; second storing means detachably attached to the main body; and a moving image recording mode based on a selection result by the selecting means. Control means for controlling the recording of the digital signal in the first storage means and the recording of the digital signal in the second storage means in the still image recording mode. . 2. The control unit according to claim 2, wherein the recording in the still image recording mode is performed during the recording in the first storage unit in the moving image recording mode based on a selection result by the selection unit.
2. The digital camera according to claim 1, wherein the control is performed by the storage means. 3. The digital camera according to claim 1, wherein said first storage means has a recording medium detachable from a main body of the digital camera. 4. The digital camera according to claim 1, wherein said second storage means has a semiconductor memory as a storage medium. 5. A photoelectric conversion means for photoelectrically converting an image into an electric signal, a means for A / D converting the electric signal obtained by the photoelectric conversion means into a digital signal, and a moving image recording mode or Selection means for selecting a moving image playback mode, a still image recording mode, or a still image playback mode; first storage means for recording the moving image; and recording the still image on a storage medium detachably mounted on the main body. A second storage unit that stores the digital signal in a moving image recording mode in the first storage unit based on a selection result of the selection unit, and stores the digital signal in a still image recording mode in the first storage unit. Control means for performing control for recording in the storage means, and an image for displaying an image based on a digital signal recorded in the still image recording mode or the moving image recording mode. A digital camera, comprising: display means; and image selection means for selecting an image for selectively recording any of a plurality of frames obtained in the moving image recording mode as a still image. 6. The control unit controls the recording of a still image in the second storage unit during the recording in the first storage unit in a moving image recording mode based on a selection result by the selection unit. 6. The digital camera according to claim 5, wherein the digital camera is operated. 7. The control unit, while reproducing an image in a moving image recording mode on the image unit based on a selection result by the selection unit, converts the still image to the second image on the basis of the selection result by the image selection unit. 6. The digital camera according to claim 5, wherein control for recording data in said storage means is performed. 8. The digital camera according to claim 5, wherein said first storage means has a recording medium detachable from a digital camera main body. 9. The digital camera according to claim 5, wherein said second storage means has a semiconductor memory as a storage medium.