JPH0226833B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an imaging device.

Conventionally, in an imaging apparatus, there is a method of saving power consumption by stopping at least part of the power supply to each part of the imaging apparatus when the apparatus is not in a recording state.
For example, by supplying power only to the heater of the image pickup tube, power can be saved when recording is not in progress, and the entire image pickup apparatus can instantly become ready for recording when recording is in progress.

Conventionally, in the above method, a switch is provided separately from a power switch, a recording start switch, etc., and the switch stops at least a portion of the power supply to save power. However, in addition to turning off the recording switch after recording, it is very troublesome to turn on the switch to save power, and sometimes people forget to turn on the switch. In view of these points, it is an object of the present invention to provide an imaging device that has a high power saving effect, can perform reliable recording, and can perform instantaneous recording.

FIG. 1 is a diagram showing an embodiment of the present invention. 1
is an oscillator, 2 is a timer circuit, 3 is a monomulti, 4
is a JK flip-flop, 5 is a relay that opens and closes multiple switches, 6 is a power supply, 7 is a transmission line that transmits power from the power supply to each part of the device, 8 is a recording switch, and 9 is a power saving switch.

FIG. 2 is a waveform diagram showing the waveforms of each part a to g in FIG. 1, and the operation of the embodiment shown in FIG. 1 will be explained below using FIG. 2. When the relay 5 is not energized, at least a portion of the power transmission line 7 is cut off, and the device enters a power saving state. Power saving switch 9
When is momentarily turned off, the output of OR gate R becomes high level for a moment, triggering JK flip-flop 4. The JK flip-flop is inverted by this trigger, releasing the device when it is in a power-saving state, and entering the power-saving state when it is not.

Now, when the device is in the power saving state, the power saving switch 9
When the JK flip-flop 4 is turned off for a moment, the output of the JK flip-flop 4 changes from high level to low level, and the relay 5 is energized via the inverter NT, so that the power saving state is canceled. In Figure 2, t ₁ indicates that moment. Next, when the recording switch 8 is turned on, the oscillator 1 starts oscillating. Timer circuit 2 is oscillator 1
It is reset at the falling edge of , and the output becomes high level. The timer circuit 2 turns the output to a low level when the predetermined time t has been counted, but when the recording switch 8 is in the on state, the predetermined time t is always reached at the falling edge of the oscillator 1.
It is reset before the time is counted. When recording is completed and the recording switch 8 is turned off, the oscillator 2 stops oscillating, and the output of the timer circuit becomes low level after a predetermined time t from the last fall of the oscillator. The monomulti 3 is triggered by the fall of the output of the timer circuit and outputs a narrow pulse. This output is input as a trigger pulse to the JK flip-flop 4 via the OR gate R, and the inverter NT
The output returns to low level and the power saving state is resumed.

According to the above configuration, after recording ends, if recording is not started again within a predetermined time, the device automatically enters the power saving state, which is effective in improving operability, and contributes to the generalization of imaging devices equipped with power saving means. Contribute.

FIG. 3 is a diagram showing another embodiment of the present invention.
Components having the same configuration as in FIG. 1 are given the same numbers.
10 is a mono multi that triggers on the rising edge of the input,
11 is a monomulti that triggers on the rising and falling edges of the input, 12 and 14 are flip-flops, 1
3 is a delay circuit, 15 is a relay that turns on when energized, and 16 is a recording drive circuit.
FIG. 4 is a waveform diagram of each part b to m in FIG. 3. In this embodiment, there is no power saving switch, and by opening and closing the recording switch 8, a convenient power saving state can be automatically achieved. The operation will be explained below.

When the recording switch 8 is turned on, the monomulti 11 generates a narrow pulse, and the flip-flop 12
The output of is inverted to high level. mono multi 11
The other output of flip-flop 14 is delayed and
is input. The outputs of flip-flops 12 and 14 are input to an AND gate AND. In this way, the output of the AND gate AND, as shown in Figure 4 m, will be:
When τ has elapsed since the recording switch 8 was turned on, the signal becomes high level, and at the same time as the switch 8 is turned off, it becomes low level. When the output of the AND gate AND is at a high level, the relay 15 is energized and recording is actually performed.

On the other hand, as in the embodiment of FIG. 1, when the recording switch 8 is turned off, the apparatus enters the power saving state after a predetermined time t. When the recording switch 8 is turned on, the monomulti 10 generates a narrow pulse. This serves the same function as momentarily turning off the power saving switch 9 in the embodiment shown in FIG. 1, and cancels the power saving state.

After all, in the above configuration, during the time required for the device to start up after the recording switch 8 is turned on, recording is not actually performed and only the power saving state is canceled.
Therefore, no disturbance occurs in the recorded image signal at the rising edge. Furthermore, since the recording drive circuit 16 is stopped at the same time as the recording switch 8 is turned off, there is no unnecessary recording. After a predetermined period of time, the device returns to the power saving state. All of the above is done automatically.

In the embodiment described above, the recording drive circuit 16 is used as the imaging and recording means of the present invention.

Further, in this embodiment, the recording switch 8 shown in FIG. 3 is used as the setting means for giving an instruction to perform the mirror operation.

Further, in this embodiment, a third means is provided for supplying power to at least a part of the device in accordance with an instruction from the setting means.
A monomulti 10 and a relay 5 are used to trigger the JK flip-flop 4 shown in the figure.

In this embodiment, the latch means for latching the power-on state is a flip-flop 4 shown in FIG.
And so.

Further, in this embodiment, the recording control causes the recording means to perform the recording operation after a first predetermined time required for startup after the inputting of the inputting means, and stops the recording operation in response to cancellation of the instruction. a monomulti 11 controlling the operation of the recording drive circuit 16 by controlling the relay 15;
Flip-flops 12, 14, delay circuit 13,
AND gate, relay 14.

Further, in this embodiment, the power supply control means continues the latched state by the latching means until a second predetermined time elapses from the release, and then stops the power application by the turning means by releasing the latched state after the elapse of the second predetermined time. The oscillator 1, timer circuit 2, and monomulti 3 are used to give a trigger to the JK flip-flop after a certain period of time measured by the timer 2 after the switch 8 shown in FIG. 3 turns from on to off.

According to the present invention described above, the actual recording operation can be performed after the first predetermined time required for starting up the device has elapsed from the instruction from the setting means that gives the instruction to perform recording, so that reliable recording can be performed. Furthermore, in the present invention, the recording instruction is temporarily canceled by continuing the latching state of the latching means that latches the power-on state until a second predetermined time has elapsed from the release of the instruction from the setting means, Even if a recording instruction is subsequently received immediately, it is possible to quickly perform recording.

[Brief explanation of drawings]

FIG. 1 is a diagram showing one embodiment of the present invention, FIG. 2 is a waveform diagram of each part in FIG. 1, FIG. 3 is a diagram showing another embodiment of the present invention, and FIG. 4 is a diagram showing various parts in FIG. FIG. 1 is an oscillator, 2 is a timer circuit, 3 is a monomulti, 4 is a JK flip-flop, 8 is a recording switch, and 9 is a power saving switch.

Claims (1)

[Scope of Claims] 1. means for capturing and recording images; setting means for giving an instruction to perform a recording operation; means for supplying power to at least a part of the device in accordance with instructions from the setting means; latching means for latching the closing state; causing the recording means to perform a recording operation after a first predetermined time necessary for startup after the closing of the closing means has elapsed; and stopping the recording operation in response to release of the instruction; a recording control means; a power supply control means for maintaining the latched state by the latching means until a second predetermined time elapses from the release, and then stopping the power application by the turning on means by releasing the latched state after the lapse of a second predetermined time period; The imaging apparatus further comprises: when an instruction is given again by the setting means before the second predetermined time elapses, the latched state is continued for at least the second predetermined time.