JPH0275288A - Electronic camera - Google Patents

Abstract

PURPOSE:To effectively use remaining tracks even if a disk recorded partially is loaded to a camera and to attain recording without waste by applying pickup recording from an optimum track position depending on the identification of a pre-scan data and the recording mode. CONSTITUTION:Data representing the presence of recording for each track of a floppy disk 1 is stored in a CPU 12 by pre-scan. On the other hand, in the case of recording a picture signal, the CPU 12 identifies a field and a frame in response to a signal from a camera changeover means 13, collates them with a stored pre-scan data and gives a command to a motor control circuit 5 so as to move a magnetic head 3 to the initial track position in response to the recording mode and a head drive motor 4 moves the head 3 to the initial track position. When the recorded disk is used locally for the electronic camera, the unrecorded track is used without any waste.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to electronic camera recording.

[Prior art] Conventionally, there are two modes: field recording mode and frame recording mode.
In an electronic camera that can select from two recording modes, when a pre-recorded video floppy disk as shown in Figure 2 is loaded into the camera, a pre-scan is performed, and as a result, the starting track position at which the image is recorded is determined by the recording mode. It was generally set at the 9th track position regardless of the mode. In addition, the trusses marked with an O in FIG. 2 are used trucks. The idea was to start recording from the track following the last track position among the recorded tracks.

[Problem to be solved by the invention]

In the prior art as described above, even if there is a recordable track before the last recorded track, it is not used, and there is a problem in that the floppy disk with a limited recording capacity is wasted. For example, on a disc like the one shown in Figure 2, if it is in field recording mode, the start position should be set on the second track, and if it is in frame recording mode, the start position should be set on the fifth track. be.

The present invention has been made to improve these conventional problems, and an object of the present invention is to use a wooden recording track without wasting it when a partially recorded disk is used in an electronic camera. .

[Example] FIG. 1 shows an embodiment of the present invention.

FIG. 1 is a diagram showing the overall circuit configuration of an electronic camera. A magnetic head 3 is arranged at a predetermined position so as to record and reproduce data on a video floppy disk 1 rotated by a spindle motor 2. It has one set of heads to enable recording and reproduction in both modes.

The reproduction signal from the magnetic head 3 is sent to the recording/reproduction switching circuit 6.
is sent to the playback circuit 7, the RF detection circuit 8 performs RF detection, the binarization circuit 9 identifies the presence or absence of recording, and the result is sent to the CPU 12. This operation is repeated over all tracks for pre-scanning. As a result, data on whether or not each track of floppy disk 1 is recorded is sent to CPU 1.
It will be stored in 2.

On the other hand, when recording an image signal, CPU ], 2
The field and frame are identified in accordance with the signal from the camera switching means 13, and compared with the accumulated pre-scan data, the magnetic throat 3 is moved to the initial rack position corresponding to the recording mode. An instruction is issued to the motor control circuit 5, and the head driver 4 moves the head 3 to the initial track position.

In actual recording of an image signal, light information from the camera's photographing lens 17 is controlled by the lens diaphragm 18 and the shutter 16, and enters the photoelectric conversion element 15 as an appropriate amount of light, and is sent to the signal processing circuit 11 and the recording amplifier 10. The signal is then transmitted to the magnetic head 3 through the recording/reproduction switching circuit 6 and recorded on the floppy disk 1.

When a disk as shown in FIG. 2 is loaded into the camera, the camera first performs a pre-scan and stores pre-scan data as shown in FIG. 2 in the CPU 12. Here, the camera switching means 13 takes a single frame,
It has three modes: continuous shooting and high-speed snapshot, and it is predetermined in advance that field mode recording will be performed only in the case of high-speed snapshot, and when high-speed snapshot is selected by the switching means, the CPU 12 The motor control circuit 5 determines that it is field mode recording and moves the head 3 to the second track based on the stored prescan data.
At the same time, the field/frame switching circuit 14 is instructed to perform field recording, and the recording/reproduction switching circuit 6 is instructed to indicate the recording state. The CPU 12 also calculates the number of remaining frames that can be photographed based on the prescan data and the recording mode identification, and in this case displays the calculation result of 45 frames on the display means 19 such as an LCD.

Next, when the switching means 13 selects -frame shooting, the magnetic head moves to the fifth track and displays the remaining frames 22 by the same operation as described above.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to shoot and record from the most suitable track position using pre-scan data and recording mode identification, so even if a partially recorded disc is loaded into the camera, the remaining This makes it possible to use the tracks effectively and record without waste.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the circuit configuration of an electronic camera according to the present invention, and FIG. 2 is a diagram showing the recording state of a partially recorded disc. [Explanation of symbols of main parts] 1...Video floppy disk 2...
・Spindle motor 3...Magnetic head for recording/reproduction 4...Head drive motor 5...Motor control circuit 6...Record/playback switching circuit 7... ... Reproduction circuit 8 ... RF detection circuit, 9 ... Binarization circuit 10 ... Recording amplifier, 11 ... CCD signal processing circuit 12 ... CPU, 13 ...Photographing mode switching means 14...Field/frame switching circuit 15...
・Photoelectric conversion element, 16...shutter 17...
Lens, 18...Lens aperture 19...Display means

Claims (1)

[Claims] 1. Having a plurality of recording tracks, 1 in a television signal
A video floppy disk is used as a recording medium, and a field signal is recorded on one track, and a one-frame signal consisting of two fields is recorded on two tracks. Field image recording and frame image recording on floppy
In an electronic camera, the electronic camera is equipped with a recording means that enables recording in two modes; a switching means for switching the mode; a calculation circuit for automatically recording wood by Prince Scan based on a signal from the switching means; calculating the number of shots that can be taken from the recorded track data; and a display means for displaying the calculation results; An electronic camera comprising a moving means for moving a recording head to a track position matching a recording mode selected by a signal from the switching means. 2. Claim 1, wherein the switching means is a switch for changing the shooting mode of the camera, and selects a predetermined recording mode in accordance with the selection of the shooting mode.
Electronic camera as described in section.