JP2902676B2 - Still image recording device - Google Patents

Description

The present invention relates to a still image recording device such as an electronic still camera.

(B) Conventional technology An electronic still camera using a rotating magnetic disk as a recording medium is described in, for example, magazine TV technology, May, 1989, PP.55 to PP.64. In recent years, electronic still cameras using an IC memory card as a recording medium have been developed, and such electronic still cameras are also introduced in PP.72 to PP.73 of the above-mentioned magazine.

(C) Problems to be Solved by the Invention By the way, when photographing is performed using an electronic still camera and an erroneous subject is recorded, there is a case where it is desired to delete the image signal. The recording position has shifted to the next empty area. At this time, if the recording medium being used is a new recording medium and the recording is sequentially performed in the order of the track number, the recording position may be shifted to the track before the erroneous recording, and the recording may be performed again. However, if an empty track is located at an arbitrary position on the recording medium, all tracks must be reproduced once before the next recording, unless the current recorded track number is memorized, in order to search for an incorrectly recorded track. I had to.

Therefore, the present invention has been made in view of such a drawback, and an object of the present invention is to propose an electronic camera capable of easily canceling an incorrectly recorded portion.

(D) Means for Solving the Problems In order to solve the above problems, a still image recording apparatus according to the present invention has a recording medium having a plurality of recording areas, and recording for recording a still image signal in each recording area of the recording medium. Means for erasing a still image signal recorded in the recording area of the recording medium by the recording means, and storage for storing positional information on the recording medium of the recording area last recorded by the recording means. Means for responding to an erasing switch, erasing a still image signal recorded in a recording area corresponding to the position information by the erasing means, and controlling the recording means to enable writing to a recording area corresponding to the position information. It is a configuration provided.

(E) Function According to the above configuration, even after the recording of the next image signal becomes possible, the last recorded image signal can be quickly erased.

(F) Embodiment Hereinafter, an embodiment of the electronic still camera according to the present invention will be described with reference to the operation flowcharts of FIG. 1 and FIG.

FIG. 1 is a schematic block diagram of an electronic still camera embodying the present invention, wherein (1) is an imaging device for photoelectrically converting a subject (2) image into an image signal, and (3) is a recording / reproducing circuit. , (4) an erasing circuit, (5) a rotating magnetic disk, (6) a recording / reproducing head, (7) an image signal from the recording / reproducing circuit (3) or an erasing signal from the erasing circuit (4). And (8) a motor driver, (9) an access motor, (10) an indicator for displaying a track number or the like made up of LEDs or LCDs, and (11) a system controller having an internal memory (12), said controller (11) is record switch (SW _1), a cancel switch (SW _2), in response to the switch input, such as eject switch (SW _3), recording and reproduction Circuit (3), erase circuit 4), a motor driver (8), and outputs a signal for driving the like display (10).

When the magnetic disk (5) is mounted and the power is turned on, the switch (7) is switched to the terminal (a) side, the disk (5) is reproduced, and the track No. recorded on the disk (5) is read. . the allowed to store in the memory (12) (S _1). When the image signal is determined to be recorded on all tracks of the magnetic disk (S _2), the operation ends. Step If it is determined that there is no recorded track (S _2), allowed to move the head (6) to the minimum track NO. Track of the non-recording tracks (S _3). Next determination of whether the switch is pressed is made (S _4), the pressed switch cancel switch (SW ₁₎ or (S _5), eject or switch _{(SW 6) (S 6)} , a recording switch ( SW ₃ ) or (S ₇ )
Is subsequently determined. If the pressed switch is the eject switch (SW ₃ ), the operation ends. If pressed switch record switch (SW _1), actuated to the recording and reproducing circuit (3) (S _8), 1 single recording a still image signal to the track, the recording and reproducing circuit (3 and its recording is finished )
Operation (S ₉ ), and the recorded current track No.
The additionally stored in the memory (12) (S _10), also the current track that the recording the last track a determination is made whether the (S _11). Exit this step (S ₁₁₎ by the operation is judged to be the last track, otherwise, to drive the motor driver (8) to move the head (6) to the next track, its track recorded whether a determination is made (S _13). Return to this step if recorded at at (S ₁₃₎ Step (S _11), when it is determined that no recording track returns to step (S _4).

On the other hand, step cancel (S ₅₎ switch (SW ₂₎
If it is determined that has been pressed, the head (6) determines whether is in the first track is made (S _14), the flow returns to step (S ₄₎ if the first track. Step When the head (6) with (S ₁₄₎ is determined not to the first track, moved memory head (6) to the track was recorded in the previous according to the content of (12) (S ₁₅₎ , Switch (7)
The switch to the terminal (b) side (S _16). Thereafter, by operating the erasing circuit (4) (S _17), erases the image signals of the one track, allowed terminates the operation of the erase circuit erasing is finished (4) (S _18), the switch (7 ) back to the terminal (a) side (S _19), a memory track number has been erased (12)
Remove from (S _20), performs an operation to return to step ₄ (S 4).

(G) Effects of the Invention As described above, according to the present invention, even after the next image signal can be recorded, the last recorded image signal can be easily canceled, and the recording capacity of the recording medium can be reduced. Can be used for

[Brief description of the drawings]

FIG. 1 is a block diagram of an electronic still camera embodying the present invention, and FIGS. 2 (a) and 2 (b) are flowcharts showing the operation thereof. (3): Recording / reproducing circuit, (4): Erasing circuit, (5)
... magnetic disk, (6) ... magnetic head, (11) ...
System controller, (12)… Memory, (SW ₂ )…
… Cancel switch.

Claims (1)

(57) [Claims] 1. A recording medium having a plurality of recording areas, recording means for recording a still image signal in each recording area of the recording medium, and a still image signal recorded in the recording area of the recording medium by the recording means Erasing means for erasing the position information; storage means for storing position information of the recording area last recorded by the recording means on the recording medium; responsive to an erasing switch, the information is recorded in the recording area corresponding to the position information. And a control unit for erasing the still image signal by the erasing unit and enabling writing to a recording area corresponding to the position information.