KR940000652Y1 - Color singal switching apparatus of camcorder - Google Patents

Abstract

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Description

Camcorder color and black and white color changer

1 is an implementation circuit diagram of the present invention.

2 is an operation flowchart of the present invention.

* Explanation of symbols for main parts of the drawings

1: Band Pass Filter 2: Low Pass Filter

3,3 ': Viewfinder 4,4': Auto color control unit

SW1, SW2: Switch

The present invention relates to a color and black and white color switching device of a camcorder for selecting a color screen and a black and white screen for displaying a special effect during shooting and playback editing in a color camcorder (video camera with a built-in video tape recorder). .

With the rapid spread of camcorders, it is applied to hobbies and commercials beyond simple shooting and playback functions, and accordingly, it is required to increase the functions of camcorders.

Among them, black and white screens are required because the existing color screens cannot fully exhibit their effects in order to show remarkable contrast with the functions of past recall scenes, mosaics and montages.

Therefore, in the conventional camcorder, only one color (black and white or color) can be photographed or played back, and thus, two color camcorders (black and white and color) are required to express a special effect as described above. Partial photographing and re-editing were required.

Therefore, there is a disadvantage in that it takes a long time and a cost to express the above-mentioned special effects.

The present invention is to provide a color and black and white color switching device of the camcorder that can be recorded in color or black and white simply by selecting a color and black and white screen whenever necessary with one camcorder in view of such a point. In order to achieve the present invention, the present invention has a switching means for switching by a filter means for passing only the video signal that is photographed and reproduced and processed, and a switching selection input for recording and reproducing the video signal passed through the filter filter in color and monochrome signals. And switching means, display means for displaying the monochrome signal selected by the switching means on a black and white screen, and automatic color control means for processing and recording and reproducing the color signal selected by the switching means.

When described in detail based on the accompanying drawings and the specific configuration and effect of the present invention as follows.

FIG. 1 shows a video signal photographed and signal-processed as an implementation circuit diagram of the present invention through a band pass filter 1, and a reproduced video signal is selected through a low pass filter 2 and the band pass. The video signal selected by the filter (1) and the low pass filter (2) is converted by the switch (SW1) (SW2) for color and black-and-white signal processing, and then the viewfinder (3) (3 ') and the automatic color control. It is configured to be selectively supplied from the sections 4 and 4 '.

At this time, the color video signal output from the automatic color control unit 4, 4 'is recorded on the tape or displayed on the color monitor through the processing circuit of the rear end.

2 is a flowchart of an embodiment of the present invention, when a black and white signal is not selected, recording and reproduction is performed as a color signal, and when a black and white signal is selected, the recording and reproduction is performed as a black and white signal. If there is no next screen selection, the power is turned “off” after a certain time.

Effects of the present invention configured as described above will be described in detail with reference to the flowchart of FIG. 2.

First, in the present invention, the switch SW1 (SW2) is normally “off” so that the color signal is selected and the monochrome switch is selected only when the switch SW1 is turned on. Is normally in a state in which the color signal is not operated.

First, when the camcorder starts to operate, the switching operation of the switching switches SW1 and SW2 is checked. If the switching switches SW1 and SW2 remain in the “off” state, the band pass filter 1 and the low pass are performed. The recording and reproducing video signal passing through the filter 2 is applied to the automatic color control unit 4, 4 'and processed in color signal, and then recorded on the tape and displayed on the monitor, respectively. SW2) is switched to the "on" state, and the recording and playback signals passing through the bandpass filter (1) and the lowpass filter (2) are displayed by the viewfinder (3) (3 ') while the monochrome signal processing is performed. The olfactory sense is recorded on the tape and displayed on the monitor.

That is, when the switch SW1 (SW2) is turned off, the recording and playback video signal is applied to the automatic color control unit 4, 4 'to perform recording and reproduction as a color signal, and the switch SW1 If (SW2) is "on", the recording and reproducing video signal is not applied to the automatic color control unit 4 (4 '), and the recording and reproducing process is performed as a black and white signal.

Then, when the switch SW1 (SW2) is turned "on" to record and play back as a black and white signal, and the switch SW1 (SW2) is "off" again, the recording and playback video signal is automatically returned to the color control unit 4. 4 'is recorded and reproduced as a color signal.

Further, if the selected function is continuously performed while recording and reproducing the recording and reproducing video signal as a black and white or color signal by " on " " off " of the switching switch SW1 (SW2), it is determined whether the selected function is completed.

When the selected operation is completed, it is checked again if there is a selected function. If there is a selected function, the screen is returned to the process of checking “On” and “Off” of the selector switch (SW1) and SW2. If not, it checks whether a certain time has elapsed, and when the time elapses, the power is turned off and the operation ends.

In other words, if there is the next selected function, select the required screen by the selected function, and process it as a black and white or color signal according to the "on" "off" of the switching switch (SW1) (SW2), and if there is no next selected function, After checking whether this has elapsed, if the next selected function is not applied until the set time elapses, the power is turned off and the operation ends.

As described above, the switch is configured in front of the automatic color control unit and the color killer unit for processing the color signal so that the black and white signal and the color signal can be recorded and reproduced. Since it can be obtained using a cam coater, it is possible to arbitrarily edit special effects caused by black and white and color signals.

Claims (2)

Filter means for passing only the video signal band photographed and reproduced and signal-processed, switching means for switching switching by a switching selection input for recording and reproducing the video signal passing through the filter means as a color and a monochrome signal, and the switching Color and black and white color, switching device of the camcorder comprising a display means for displaying the black and white signal selected by the means, and automatic color control means for processing and recording and reproducing the color signal selected by the switching means as a color video signal. 2. The switching device according to claim 1, wherein the switching means is constituted by a switching switch (SW1) (SW2) for selecting the color and black-fold signal recording and reproduction of a recording and reproduction video signal, wherein the switching switch (SW 1) (SW2) is a band pass. A color and black and white color switching device of the camcorder, which is connected between the output side of the filter (1) and the low pass filter (2) and the input side of the automatic color control unit (4) (4 ').