JPH04213979A - Electronic camera - Google Patents

Abstract

PURPOSE:To provide the electronic camera which can display ID data separately from reproduced images, allows knowing of an unrecorded state without reproducing and is smaller in size and weight than that of a conventional one. CONSTITUTION:This electronic camera has a display processing means which discriminates whether image signals and the ID data are stored in the memory region in a memory means accessed by a reading out means or not (step 105 of a flow chart) and displays this ID data when the data is stored and displays the unrecording when the data is not stored.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic camera that converts a photographed image into an electrical signal and records this as an image signal.

0002

2. Description of the Related Art This type of electronic camera has a built-in storage means having a plurality of storage areas corresponding to one image. Each storage area stores (records) an image signal for one image and ID data input corresponding to the image signal. When reproducing an image, that is, when reading out a recorded image signal and displaying it on an image display device, it is common practice to display ID data superimposed on the reproduced image. Here, the ID data is data such as the shooting date and setting conditions at the time of shooting (for example, selection of frame/field recording), and is input separately from the shooting process.

0003

[Problem to be Solved by the Invention] In order to display such ID data, it is necessary to insert the ID data signal read from the storage means into the reproduced image signal also read from the storage means. This required a superimposed circuit, and the existence of that circuit was an obstacle to miniaturizing electronic cameras. Furthermore, although it is often possible to determine whether or not it is okay to delete an already stored image from the ID data alone, with the ID data display method described above, it is not possible to determine whether to delete the image without actually playing it back. There wasn't.

0004

[Means for Solving the Problems] The electronic camera of the present invention has been made to solve the above-mentioned problems, and the image signal and ID data are stored in the storage area of the storage means accessed by the reading means. It is provided with a display processing means that determines whether the ID data is stored, displays the ID data if the ID data is stored, and displays an unrecorded ID data if the ID data is not stored. Note that it is preferable that the display section of the display processing means utilizes a display section for displaying operation information or internal information.

[0005]

[Operation] Data is read by the reading means from the storage area selected by the operator, and it is determined whether the image signal and ID data are stored (recorded) in the storage area. This discrimination is achieved, for example, by envelope detection. After that, once the data recording is confirmed,
ID data is detected and displayed, and if it is confirmed that the ID data is unrecorded, a display indicating that it is unrecorded is executed.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1 and 2 are partial configuration diagrams showing the configuration of an electronic camera according to an embodiment of the present invention, and both figures together show the overall configuration. Note that FIG. 2 also shows the connection relationship between this electronic camera and an image display device for reproduction.

First, the imaging system will be explained. In front of the CCD 11, which is an image sensor, there is a lens 13 and an aperture.
An optical system including a shutter 14 is arranged. The CCD drive circuit 12 drives the CCD 11 at the timing of the synchronization signal output from the synchronization signal generation circuit 10, and converts the image of the subject incident through the lens 13 and the aperture/shutter 14 into an electrical signal. The aperture/shutter 14 is controlled by an aperture/shutter circuit 15 based on commands from a control circuit 16 . Of these, the aperture is controlled based on the value obtained by the photometric circuit 17 so that a predetermined exposure amount is obtained. The basic image signal output from the CCD 11 is subjected to color temperature correction and the like in a signal control circuit 19. Color temperature correction is
This is performed by a command from the control circuit 16 based on color temperature data from the color temperature measurement circuit 18. Note that the shutter operation is performed based on the operation of the release switch 33.

Next, a storage system for storing (recording) image signals obtained in this manner will be explained. The corrected image signal output from the signal control circuit 19 is written by a recording circuit 20 to a floppy disk 21, which is a recording medium, together with ID data. The ID data is set by the operator using the ID data setting switch 32, is once taken into the control circuit 16, and is sent to the recording circuit 20 in the form of a digital signal in synchronization with the image signal from the signal control circuit 19. Given. The recording circuit 20 performs DPSK modulation on a digital signal that is ID data, frequency-division multiplexes it with the image signal, and records it on the floppy disk 21 via the recording/reproducing head 24 . Note that the recording/playback head 24
is moved linearly along the radial direction of the floppy disk 21 by a step motor 26. This allows the recording/reproducing head 24 to be positioned on any track on the floppy disk 21. Also, floppy disk 2
1 is rotationally driven by a spindle motor 23 controlled by a servo circuit 22.

Next, the reproduction system will be explained. Image signal and ID read by the recording/playback head 24 from the selected track on the floppy disk 21
The data is input to the reproduction circuit 25 and envelope detected by the envelope detection circuit 27. The control circuit 16 determines whether or not recording is being performed on the track based on the result of envelope detection. If an image signal and ID data are recorded, the image signal is reproduced and outputted to an external image display device 31 such as a CRT connected to this electronic camera via a terminal 37, while the ID data is output to the DPS.
The signal is taken into the control circuit 16 via the K demodulation circuit 28. D
The PSK demodulation circuit 28 demodulates the ID data read from the floppy disk 21, converts it into a digital signal, and inputs it to the control circuit 28. The control circuit 28 decodes the ID data that has become a digital signal, converts it into segment data, and outputs it to the liquid crystal drive control circuit 29. The liquid crystal drive control circuit 29 drives the liquid crystal display device 30, which is a digital display device, based on the segment data from the control circuit 28.
Display the ID data. Note that the liquid crystal display device 30 also displays information necessary for operation, information indicating the internal state, etc. based on commands from the control circuit 16. For example, during recording, information indicating the shooting condition such as the shutter speed is displayed, and during reproduction, information indicating the reproduction condition such as the reproduction track number on the floppy disk 21 is displayed.

Next, the operation of displaying ID data on the liquid crystal display device 30 will be explained with reference to the flowchart shown in FIG. This ID data display operation starts when the playback mode is selected by the REC-PB switch 35, which is a recording/playback mode selection means (step 101). First, the floppy disk 21 is rotated by the spindle motor 23 (step 102). Next, the head 23 moves to the track specified by the operator's operation of the track movement switch 34 (step 103). Thereafter, the reproduction circuit 25 reads out the data on the track and performs envelope detection (step 104). Based on the detection result, the control circuit 16 determines whether or not an image signal is recorded (step 1).
05). In this judgment, if no recording has been made, the liquid crystal display device 30 displays an unrecorded status (step 111).
If recorded, ID data is detected (step 106). After the ID data is detected, the ID data converted into a digital signal through the DPSK demodulation circuit 28 is decoded by the control circuit 16 and converted into segment data (step 107). This ID data converted into segment data is given to the liquid crystal drive control circuit 29, and the liquid crystal drive control circuit 29 converts the ID data into the liquid crystal display device 3.
0 (step 108). At this time, if the operator considers that the image is no longer necessary based on the contents of the displayed ID data and wishes to record another image, the erase switch 36 is operated. In step 109, it is determined whether or not the erase switch 36 has been operated, and if it has been operated, the erase operation is performed as the erase mode (
Step 110). After that, the REC-PB switch 35
Alternatively, it enters a standby state for operation of the track movement switch 34 (steps 112, 113). This standby state also occurs when the erase switch 36 is not operated after the ID data is displayed (step 109) or when the unrecorded display is performed (step 111). Here, RE
When the C-PB switch 35 is turned on to the recording processing side, the recording mode is entered (step 115). When the track movement switch 34 is operated instead of the REC-PB switch 35, the process returns to the envelope detection process (step 104) and ID data display process is performed for another track.

Although a floppy disk is used as the image recording means in this embodiment, a so-called hard disk, which is the same magnetic storage means, may also be used, or a semiconductor memory such as an IC card may also be used. .

0012

As described above, according to the electronic camera of the present invention, since ID data is displayed separately from the reproduced image, more specifically, the ID data can be displayed separately from the reproduced image without performing image reproduction processing. Even without connecting the device, the recorded image content can be known from the ID data. Therefore, unnecessary recorded images can be easily erased and newly recorded in the storage area. Further, since a superimpose circuit for simultaneously displaying ID data and images is not required, the electronic camera itself can be made smaller and lighter, and its portability can be improved.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing part of the configuration of an electronic camera that is an embodiment of the present invention.

FIG. 2 is a block diagram showing the configuration of the remaining part of the configuration of the embodiment shown in FIG. 1;

FIG. 3 is a flowchart showing the operation of the embodiment.

[Explanation of symbols]

11...CCD 13...Lens 16...Control circuit 21...Floppy disk 25...Regeneration circuit 27...Envelope detection circuit 28...DPSK demodulation circuit 29...Liquid crystal drive circuit 30...Liquid crystal display device

Claims (3)

[Claims] 1. An imaging unit that converts a photographed image into an electrical signal and outputs it as an image signal, and a plurality of storage areas that store the image signal for one image and ID data input corresponding to the image signal. storage means provided, reading means for reading out image signals and ID data from the storage means for each storage area, and image signals and ID data being stored in storage areas in the storage means accessed by the reading means. 1. A display processing means for determining whether the ID data is stored, displaying the ID data if the ID data is stored, and displaying an unrecorded ID data if the ID data is not stored. 2. The electronic camera according to claim 1, wherein the display section of the display processing means utilizes a display section for displaying operation information or internal information. 3. The electronic camera according to claim 1, wherein the determination of the presence or absence of the image signal and ID data performed by the display processing means is performed using an envelope detection circuit.