JPH06350908A - Picture processor - Google Patents

Abstract

PURPOSE:To obtain the picture processor not causing malfunction for the changeover between a 1st mode and a 2nd mode. CONSTITUTION:When a trigger key switch 1 is depressed twice in the video recording state and the video recording standby state within a predetermined time, since a pulse generated from a 3rd MM 5 sets an output of a reset input terminal R of an FF circuit 6 to an H level, the FF circuit 6 is not triggered and the video recording standby state is maintained. On the other hand, when the trigger key switch is depressed once in the video recording standby state, since the pulse generated from the 3rd MM 5 sets an output of the reset input terminal R of an FF circuit 6 to an L level, the FF circuit 6 is triggered and the mode is inverted into the video recording state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image processing apparatus such as a camera-integrated video recorder in which a video camera and a video recorder are integrated.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional image processing apparatus.
7 is a flowchart showing a control operation of an input unit for instructing a recording operation, which is performed by pressing (turning on) a trigger key switch once in a recording standby state (S5-
1) The recording operation is started (S5-2), and when the trigger key switch is pressed again (S5-3), the recording operation is stopped and the recording standby state (S5-4) is resumed.

[0003]

However, in the above-described conventional image processing apparatus, since the trigger key switch is a push-push operation, the recording state and the recording standby state are opposite to the user's intention due to an erroneous operation or the like. Therefore, there is a case where a scene that is not intended to be recorded, for example, the ground or the like is photographed for a long time while being carried around in a recording state.

In order to solve the above problem, a slide-type or rotary-type power save switch is separately provided in the vicinity of the trigger key switch, and the power save switch is switched to the "power save" position to perform push-push operation of the trigger key switch. A product that resets, that is, puts it in a recording standby state has been commercialized. However, in order to enter the recording standby state, press the power save switch once to "power save".
There is a problem that the operation becomes complicated because it is necessary to switch to the position. Also, because a power save switch must be added separately, the cost will increase and
There is also a problem that the installation space must be secured and the size must be reduced, which increases the difficulty in design.

The present invention has been made to solve the above problems, and an object thereof is to provide an image processing apparatus which does not cause an erroneous operation for switching between the first mode and the second mode. is there.

[0006]

In order to achieve the above object, the present invention provides an instruction to alternately switch between the first mode transition and the second mode transition by the same non-holding type switching means. In the image processing apparatus capable of performing the above, the detection unit that detects a plurality of switching instructions by the switching unit within a predetermined time, and the detection signal of the detection unit transitions to the second mode regardless of the previous state. And a transition means for causing the transition.

[0007]

In the image processing apparatus of the present invention, the detection means detects a plurality of switching instructions by the switching means within a predetermined time, and based on the detection signal of the detection means, no matter what the mode of the apparatus itself is. Second by means of transition
The mode is changed to.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a block diagram showing a control circuit configuration of an input section in an image processing apparatus according to this embodiment. In FIG. 1, reference numeral 1 is a trigger key switch (switching means) for switching between a recording state and a recording standby state. Is. 2 is an inverter for making the output signal of the trigger key switch 1 "positive logic", 3 is an input terminal A ₁ connected to the output terminal of the inverter 2, and the output terminal Q _{1 is} generated by the rising edge of the output signal (a) from the inverter 2. A first monostable multivibrator (first MM) that generates a pulse to
The input terminal A ₂ is connected to the output terminal Q _{1 of} M3, and the first MM
3 is a mono-multivibrator (second MM) that is held in the same state for a predetermined time T by being triggered by the rising edge of the pulse (B) generated from the output terminal Q ₁
The output terminal Q ₁ of the M3 and the output terminal / Q _{2 of the second} MM4 are connected to the input terminal A ₃ and the reset input terminal R ₃ , respectively, triggered by the generated pulse (b), and the output terminal / Q _{2 of the second} MM4 is The mono-multivibrator (third MM) 6 which is reset by the generated pulse (c) of 6 connects the output terminal Q ₁ of the first MM3 and the output terminal Q ₃ of the _third MM5 to the clock terminal CK and the reset input terminal R, respectively. , A flip-flop (FF) circuit that short-circuits the input terminal D and the output terminal Q, inputs the rising edge of the generated pulse (b) to the clock terminal CK as a clock input, and inverts the holding state. This FF circuit 6
The output signal (e) from the output terminal Q of is a control signal for instructing a system control unit (not shown) at the "H" level to indicate the recording state and at the "L" level to indicate the recording standby state.

Next, the control operation of the input unit in the image processing apparatus having the above configuration will be described.

First, the control operation when the trigger key switch 1 is pressed only once from the recording standby state or the recording state will be described.

The pulse generated by pressing the trigger key switch 1 is converted by the first MM3 into a pulse having a relatively short time width. The second MM4 is triggered by this pulse, the output of the output terminal Q ₂ becomes the “H” level, and the “H” level is maintained for a predetermined time and then becomes the “L” level. At the same time, this pulse is also input to the third MM5, but the second M connected to the reset input terminal R ₃ of the third MM5.
Since the output of the output terminal Q ₂ of M4 is still at the “H” level, the third MM5 is not triggered.

The pulse is also input to the FF circuit 6, and at this time, in the FF circuit 6, the third MM5
Is not triggered, the output of its reset input terminal R is in the "L" level state, so that the holding state is inverted from the recording standby state to the recording state or vice versa.

In this way, the user can use the trigger key switch 1
When is pressed only once, the transition from the first mode to the second mode or vice versa takes place.

Next, in the recording state, the control operation when the trigger key switch 1 is pressed once and the trigger key switch 1 is pressed once again within a predetermined time T, that is, while the second MM4 continues to generate a pulse, is shown in FIG. It will be described based on the chart.

After the trigger pulse is generated by pressing the trigger key switch 1 once in the recording state, the recording standby state is set, and then the trigger key switch 1 is pressed once again within the predetermined time T. Two
A second pulse (b) is generated (FIGS. 2A and 2B). First
Since the second MM4 triggered by the pulse of the second pulse is continuing to generate a pulse, the output of the output terminal Q ₂ is at the “L” level. Since the pulse (c) generated from the output terminal Q ₂ holds the output of the reset input terminal R ₃ of the _third MM5 at the “L” level for the predetermined time T (FIG. 2C), the first MM3 The second pulse (b) from triggers the third MM5. As a result, the pulse (d) generated from the output terminal Q _{3 of the third} MM5 causes the output of the reset input terminal R of the FF circuit 6 to be at the “H” level (FIG. 2D), and at the same time, the clock terminal of the FF circuit 6 The FF circuit 6 is not triggered by the second pulse (B) input to CK and holds the recording standby state (FIG. 2E).

In this way, if the trigger key switch 1 is pressed twice within the predetermined time T, that is, within the set pulse width time during which the second MM4 continues to generate a pulse, no matter what the previous state is, It is kept in the recording standby state.

Next, the control operation when the trigger key switch 1 is pressed twice within the predetermined time T in the recording standby state will be described with reference to the timing chart of FIG.

In the recording standby state, a predetermined time T
When the trigger key switch 1 is pressed twice in the inside, the first and second pulses (b) are generated in the same manner as above (FIG. 3A,
B). In this case, the output of the output terminal Q of the FF circuit 6 becomes "H" level by the first pulse (b), and the recording state is set. At the same time, since the second MM4 triggered by the first pulse (b) is continuing pulse generation,
The output of the reset input terminal R ₃ of the _third MM5 is held at the “L” level (FIG. 3C), and the second pulse (b) from the first MM3 triggers the third MM5. As a result, the pulse (d) generated at the output terminal Q ₃ is
In order to set the output of the reset input terminal R of the F circuit 6 to the “L” level (FIG. 3D), the FF circuit 6 is simultaneously driven by the second pulse (b) input to the clock terminal CK of the FF circuit 6. When triggered, the holding state is reversed from the recording state to the recording standby state by the first pulse (b) (FIG. 3E).

Therefore, in the recording standby state, even if the trigger key switch 1 is pressed twice within the predetermined time T, the initial recording standby state is maintained.

In this way, the advance (trigger key switch 1
Regardless of the state (before pressing), that is, the recording state or the recording standby state, the recording standby state is maintained by pressing the trigger key switch twice within a predetermined time.

The output signal (e) of the FF circuit 6 is generated only during the first and second time intervals T '(FIG. 3E) when the trigger key switch 1 is pressed twice within the predetermined time T. The "H" level is output and the recording state is set. Therefore, even if there is a recording command within the predetermined time T, it is necessary to add a control for invalidating the command even if there is a recording command within the predetermined time T.

Next, the control operation of the input unit in the image processing apparatus having the above configuration will be described with reference to the flowchart of FIG.

First, in step S4-1, it is determined whether or not the trigger key switch 1 is pressed (turned on) until it is pressed, and if it is pressed, the process proceeds to the next step S4-2, and within a predetermined time. It is again determined whether or not the trigger key switch 1 has been pressed. If pressed, the next step S4
In -3, the holding state does not change from the first recording standby state, the timer is cleared and the counting operation is started in the next step S4-4, and then this processing operation is ended.

On the other hand, if the trigger key switch 1 is pressed again within the predetermined time in step S4-2, the process proceeds to step S4-5, and it is determined whether or not the recording standby state is currently set. If it is not in the recording standby state, the above step S
In 4-3, the recording standby state is held.

If the current recording standby state is not set in step S4-5, the holding state is reversed from the recording standby state to the recording state and the recording operation (REC) is started in the next step S4-6. Next step S4-7
After clearing the timer to start the counting operation, the procedure returns to step S4-1.

[Other Embodiments] In addition, immediately after pressing the trigger key switch 1 once in the recording standby state,
It is also possible not to generate a recording command signal for a short-time recording command such as pressing the trigger key switch 1 once again.

Further, in the above-described first embodiment, the digital circuit is used as the control circuit of the input section. However, a structure in which the input is detected directly by the microcomputer at present, for example, by pressing a key or the like is generally used. And
It is also possible to perform the same control by the program of the computer.

In the first embodiment, the case where the trigger key switch 1 is held in the recording standby state when the trigger key switch 1 is pressed twice within the predetermined time T has been described, but the trigger key switch 3 is pressed three times within the predetermined time T. The recording standby state may be maintained even when the button is pressed more than once.

Further, the trigger key switch 1 is turned on for a predetermined time T.
It is also possible to set the recording standby state when pressed twice and the power save state when pressed three times.

[0031]

As described above in detail, according to the image processing apparatus of the present invention, the detecting means detects a plurality of switching instructions by the switching means within a predetermined time, and based on the detection signal of the detecting means, the apparatus Regardless of what state it is in, the transition means causes the transition to the second mode. Therefore, it is possible to prevent erroneous operation of switching between the first mode and the second mode, and without providing a special switch. Also, it becomes possible to maintain the second mode state without checking what state the device is currently in.

If the user operates the switching means to instruct the switching a plurality of times, the erroneous operation is significantly reduced.

[Brief description of drawings]

FIG. 1 is a control circuit diagram of an input unit in an image processing apparatus according to an embodiment of the present invention.

FIG. 2 is a timing chart of each component that occurs when a trigger key switch in the same device is pressed twice within a predetermined time in a recording state.

FIG. 3 is a timing chart of each component that occurs when a trigger key switch in the same apparatus is pressed twice within a predetermined time in a recording standby state.

FIG. 4 is a flowchart showing a control operation of an input unit in the same device.

FIG. 5 is a flowchart showing a control operation of the input unit in the conventional image processing apparatus.

[Explanation of symbols]

 1 Trigger Key Switch (Switching Means) 2 Inverter (Detecting Means) 3 First MM (Detecting Means) 4 Second MM (Detecting Means) 5 Third MM (Detecting Means) 6 FF Circuit (Transition Means)

Claims (2)

[Claims] 1. An image processing apparatus capable of alternately instructing switching between the first mode and the second mode by the same non-holding type switching means, wherein a plurality of switching means are provided within a predetermined time. An image processing apparatus comprising: a detection unit that detects a switching instruction for one time; and a transition unit that makes a transition to the second mode regardless of a previous state by a detection signal of the detection unit. 2. The image processing apparatus according to claim 1, wherein the transition means transitions to a third mode different from the first and second modes.