KR960015997B1 - Monitoring apparatus of vcr - Google Patents

Abstract

a LCD process means for displaying a monitor video output signal outputted from the double deck VCR on LCD; a switching means for controlling the power linkage action between the LCD process means and double deck VCR; a micom for outputting the control signal according to the switching action of the switching means; a power source control means for controlling the power source supplied into the LCD process means and double deck VCR; a power source supplying means for supplying the power source into the power source control means, LCD process means and double deck VCR according to the control of the power source control means.

Description

Double Deck VSR Monitor

1 is a block diagram of a general double deck VCR.

2 is a configuration diagram of a monitor device for a double deck VCR according to the present invention.

* Explanation of symbols for main parts of the drawings

1: RF signal splitter 2: TV tuner

3: RF modulator 4: separate amplifier

5, 6: VCR 10: LCD processing unit

11 signal processing unit 12 RGB separation unit

13 LCD driver 14 LCD display

20: micom 30: switching unit

31: power switch 32: LCD switch

40: power control unit 41, 43: DC / AC oscillator

42: logic circuit 50: power supply

51: AC / DC converter 52, 53: transformer transformer

54, 55: rectifier

The present invention relates to a power interlock type monitor device using a small liquid crystal display device in a double deck VCR.

1 is a block diagram of a general double deck VCR.

In general, a double-deck VCR consists of an RF signal splitter (1), a TV tuner (2), a separate amplifier (4), and VCRs 1, 2 (5, 6), as shown in FIG. To monitor using a separate monitor.

The input signal includes an RF signal input from the TV antenna to the RF signal splitter 1, a video signal input from the line input terminal, and a camera video signal input from the camera input terminal.

The output signal includes an RF output signal output from the RF signal splitter 1 to the TV receiver through the TV tuner 2 and the RF modulator 3 and a monitor video output signal output to the monitor video output terminal.

The input selector switch is located on the VCR1 (5) and VCR2 (6), respectively, and can select four input signals (I1, I2, I3, I4, I1 ', I2', I3 ', I4'), and the output selector switch. Can select seven output signals (01 to 07). If the input selection switch in the VCR1 (5) is in the position (I1), the signal of the channel selected by the TV tuner 2 is selected through the TV antenna.

In addition, when the input selection switch in the VCR1 (5) is in the position (I2), the video signal input through the separation amplifier 4 from the line input terminal is selected.

In addition, when the input selection switch is located at position I3 in the VCR1 (5), the camera video signal input to the camera input terminal is selected.

In addition, when the input selection switch is located at position I4 in the VCR1 (5), a signal reproduced and output from the VCR2 (6) is selected.

Similarly, if the input selection switch in the VCR2 (6) is in position (I1 '), the signal of the channel selected by the TV tuner 2 is selected through the TV antenna.

In addition, when the input selection switch in the VCR2 6 is in the position I2 ', the video signal input through the separation amplifier 4 is selected from the line input terminal.

In addition, when the input selection switch in the VCR2 (6) is in the position (I3 '), the camera video signal input to the camera input terminal is selected.

In addition, when the input selection switch in the VCR2 (6) is in the position I4 ', the signal reproduced and output from the VCR1 (5) is selected.

If the output selection switch is in position (01), the signal of the channel selected by the TV tuner (2) is selected from the TV antenna via the RF splitter (1); if the output selection switch is in position (02), line input The video signal input from the terminal and output to the separation amplifier 4 is selected.

If the output selection switch is in position 03, the signal output from the camera input terminal is selected. If the output selection switch is in position 04, the input signal selected by the input selection switch of the VCR1 (5) is selected. do.

If the output selection switch is in position (05), the output signal of the VCR1 (5) is selected. If the output selection switch is in position (06), the input signal selected by the input selection switch of the VCR2 (6) is Is selected.

In addition, when the output selection switch is in position 07, the output signal of the VCR2 6 is selected.

However, the conventional double-deck VCR has to perform the operation of separate power and input selection switch of the existing large monitor such as a TV when editing, and the operation is performed in a state where the monitor and the editing apparatus are located at close range. There was a problem in seeing a large screen.

In addition, the conventional double-deck VCR has a problem in that when using a TV as a monitor cannot watch a TV broadcast, a separate TV is required when watching the TV, and the monitor must also be moved when the editor is moved and edited.

SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a power interlock type monitor device for operating power of a double deck VCR and a monitor in a double deck VCR using a small liquid crystal display device.

In order to achieve the above object, the present invention provides an LCD processing means for displaying a monitor video output signal output from a double deck VCR on a VCR, switching means for controlling a power interlocking operation between the LCD processing means and a double deck VCR, and the switching means. A microcomputer for outputting a control signal according to a switching operation of the power source, a power control unit for controlling power supplied to the LCD processing unit and the double deck VCR according to a control signal output from the microcomputer, and an input according to the control of the power source control unit And a power supply means for supplying the power to the power control means, the LCD processing means, and the double deck VCR.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

2 is a block diagram of a power interlock type monitor device of a double deck VCR according to the present invention.

As shown in FIG. 2, the double deck VCR power interlock monitor according to the present invention includes an LCD processing unit 10, a microcomputer 20, a switching unit 30, a power control unit 40, and a power supply unit 50. It is composed of

The LCD processing unit 10 includes an image signal processing unit 11, an RGB (Red, Green, Blue) separation unit 12, an LCD driver 13, and an LCD display unit 14, and outputs from a double deck VCR. Displayed on LCD according to monitor video output signal.

The video signal processing unit 11 processes the monitor video output signal selected and output by the output selection switch of the double deck VCR, and the RGB separation unit 12 outputs an image output from the video signal processing unit 11. RGB signal (YC) Separate by signal.

The LCD driver 13 outputs an R.G.B. output from the RGB separator 12. Drives the LCD display unit 14 so that a signal can be displayed on the LCD display unit 14, wherein the LCD driver 13 transmits an RGB signal to the LCD display unit 14 in synchronization with horizontal and vertical synchronization signals. The LCD display unit 14 is driven to be displayed.

The microcomputer 20 outputs a control signal for controlling the power control unit 40 according to a signal output from the switching unit 30. The switching unit 30 includes a power switch 31 and an LCD switch 32. The microcomputer 20 decodes the on / off logic combination of the power switch 31 and the LCD switch 32 so that the LCD processing unit 10 operates in conjunction with the double deck VCR. To control.

The power switch 31 controls the power supply to the double deck VCR and the LCD processing unit 10, and the LCD switch 32 controls the operation of the LCD processing unit 10, the LCD switch 32 In the ON state, the LCD processing unit 10 operates in conjunction with the ON / OFF state of the power switch 32. In the OFF state, the LCD switch 32 is turned OFF. Regardless of the operation of the power switch 32, the LCD processor 10 may not operate and use an external monitor.

The power controller 40 includes two DC / AC oscillators 41 and 43 and a logic circuit 42. The LCD processor 40 and the double-deck VCR according to a control signal output from the microcomputer 20 are provided. Control the power supplied to

The DC / AC oscillator 41 controls the power supply unit 50 such that the power supplied from the power supply unit 50 to the double deck VCR becomes high or low level according to a control signal output from the microcomputer 20. To control.

The logic circuit 42 performs a logic operation on the control signal output from the microcomputer 20 and outputs it to the DC / AC oscillator 43. The DC / AC oscillators 41 and 43 have a high level. ) And one power gate 31 when the DC / AC generators 41 and 43 are turned on in a low level state. The DC / AC oscillator 43 is operated only when the LCD switch 32 and the LCD switch 32 are turned on at the same time.

The DC / AC oscillator 43 adjusts the power supply unit 50 to be at a high or low level supplied from the power supply unit 50 to the LCD processing unit 40 according to a signal output from the logic circuit 42. To control.

The power supply unit 50 is composed of an AC / DC converter 51, two transformer transformers 52, 53, and two rectifiers 54, 55, the DC / AC oscillator of the power control unit 40 AC power inputted in accordance with signals output from the signals 41 and 43 to process the DC / AC oscillators 41 and 43 of the power controller 40 and the respective parts 11, 12, 13, l4), and for supplying to a double deck VCR, the AC / DC converter 51 converts an input AC power into DC power, and the transformer transformers 52 and 53 are respectively provided with the DC / AC oscillator ( The voltage of the power output from the AC / DC converter 51 is transformed in accordance with the signals output from 41 and 43.

The rectifiers 54 and 55 rectify power voltages output from the conversion transformers 52 and 53 and output the rectified voltages to the respective parts 11, 12, 13, and 14 of the double deck VCR and the LCD processing unit 10, respectively. do.

The monitor video output signal selected and output by an output selection switch according to the operation of the double deck VCR is signal processed by the image signal processor 10 and separated into an RGB signal by the RGB separator 12, and then the LCD driver. 13 is driven by the LCD display unit 14 so that the RGB signal can be displayed on the LCD display unit 14 in the horizontal and vertical synchronization signal of the video signal. Therefore, the R.G.B signal is displayed and monitored on the LCD display unit 14.

When the power switch 31 is turned on while the LCD switch 32 is turned on, the microcomputer 20 controls the DC / AC oscillator 41 to operate while supplying a control signal to the logic circuit 42. Outputs two high signals when the logic circuit 42 is configured as an AND gate, and outputs two low signals when the logic circuit 42 is configured as an OR gate. 43) to operate.

Accordingly, in the transformer transformers 52 and 53 controlled by the DC / AC oscillator 41 and 43, the double deck VCR and the LCD processor 10 drive the voltage output from the AC / DC converter 51. The voltage is converted to a possible voltage level and output to the rectifiers 54 and 53, respectively.

In addition, when the power switch 31 is turned on while the LCD switch 32 is turned off, the microcomputer 20 operates only the DC / AC oscillator 41 and the DC / AC oscillator 43 does not operate. When the power supply 31 is also turned off while the LCD switch 32 is turned off, the DC / AC oscillator 41 and 43 are controlled to not operate. The double deck VCR and the LCD processing unit 10 are both prevented from being driven.

Accordingly, the input AC power is converted into a DC power in the AC / DC converter 51 and goes to a high or low level under the control of the DC / AC oscillators 41 and 43 in the transformer transformers 52 and 53. After the respective transformers are rectified by the rectifiers 54 and 55, the respective parts of the double deck VCR and the LCD processor 10, that is, the signal processor 11, the RGB separator 12, the LCD driver 13, and It is supplied to the LCD display unit 14.

At this time, the power output from the rectifier 54 is output from the rectifier 54 according to the control signal output from the microcomputer 20 in the DC / AC oscillator 41, the power supplied to the double deck VCR is constant DC / AC oscillation to adjust the level to control the transformer transformer 52 and the power output from the rectifier 55 is a control signal output from the logic circuit 42 in the DC / AC oscillator 43 As a result, DC / AC oscillation is controlled to control the transformer transformer 53 to adjust the power output from the rectifier 55 to be supplied to the LCD processor 10 to a predetermined level.

As a result, when only the power switch 31 is turned on and the LCD processor 32 is turned off, only the DC / AC oscillator 41 is turned on to supply power to the double-deck VCR to monitor through an external monitor. When both the switch 32 and the power switch 31 are turned on, the DC / AC oscillator 41 and 43 are turned on to supply power to the double deck VCR and the LCD processing unit 10, and the power switch 31 is When the LCD switch 32 is turned off or the LCD switch 32 of the power switch 31 is turned off, the DC / AC oscillator 41 and 43 are both turned off so that the double deck VCR and the LCD processor 10 are turned off. Power is not supplied.

The present invention configured and operated as described above is convenient for operation without the need for a separate monitor power and input signal selection, and the screen is small so that eyes are not tired even when the screen is viewed from a close distance, Since you can watch TV broadcasts without using a monitor, you can mount the monitor inside the double-deck VCR, so you can easily move the editor, and you can use a small power monitor within the double-deck VCR. There is an effect to reduce the.

Claims (7)

LCD processing means (10) for displaying the monitor video output signal output from the double-deck VCR on the LCD, switching means (30) for controlling the power interlocking operation between the LCD processing means (10) and the double-deck VCR, the switching means Power control for controlling the power supplied to the microcomputer 20 and the LCD processing means 10 and the double deck VCR in accordance with the control signal output from the microcomputer 20 according to the switching operation of the (30). Means 40 and power supply means 50 for supplying power input under the control of the power control means 40 to the power control means 40, the LCD processing means 10, and the double-deck VCR. The monitor device of a double deck VCR, characterized in that. The method of claim 1, wherein the LCD processing means (10); Image signal processing means 11 for processing a monitor video output signal, RGB separation means 12 for separating the signal output from the video signal processing means 11 into RGB (Red, Green, Blue) signals, the RGB separation RGB of the means 12 And a LCD display means (14) for displaying a signal, and an LCD drive means (13) for driving the LCD display means (14). The method according to claim 1, wherein said switching means (30) comprises; And a power switch (31) for controlling power supply, and an LCD switch (32) for controlling the operation of the LCD processing means (10). The power supply control means (40) according to claim 1; First DC / AC oscillation means 41 for controlling the power supply means 50 so that the power output from the power supply means 50 is at a predetermined level according to the control signal output from the microcomputer 20, The power supply so that the power output from the power supply means 50 becomes a predetermined level according to the logic means 42 for logically calculating the control signal output from the microcomputer 20 and the signal output from the logic means 42. Monitor device of a double deck VCR, characterized in that the second DC / AC oscillation means 43 for controlling the supply means (50). The method of claim 1, wherein the power supply means (50); An AC / DC converter 51 for converting an input AC power into DC power, and a first voltage for transforming a voltage of the power output from the AC / DC converter 51 under the control of the power control means 40. And first and second rectifying and outputting power from the second transformer transformers 52 and 53 and the first and second transformer transformers 52 and 53 to the double deck VCR and the LCD processing means 10. Monitor device of a double-deck VCR, characterized in that it consists of two rectifying means (54, 55). 5. The apparatus of claim 4, wherein said logic means (42); And the first and second DC / AC oscillators (41, 43) are configured by logical AND means when operating in a high level state. 5. The apparatus of claim 4, wherein said logic means (42); And monitoring means for the first and second DC / AC oscillators (41, 43) when operating in a low level state.