KR200187182Y1 - Vedio cassette record system having the fuction usable in common outputs and inputs each of audio and video line jacks - Google Patents

Abstract

The present invention relates to a VSIAL system that allows external line jacks to be used as input / output, and allows the external line connection jacks used in the VRS system to be selected and used as an input / output port, thereby allowing such jacks to be used according to a user's needs. It is an object of the present invention to provide a VSI system having a line jack entry and exit function that can be used for various purposes.

To this end, the present invention provides a VSI system including a tuner unit, an IF unit, an audio recording unit, a video recording unit, an audio line input / output jack, and a video line input / output jack. An input / output change switch unit 11 connected to the input / output change switch unit 11, an input selection switch unit 12 connected to an audio and video line input terminal to select each input signal, and the input / output change switch unit 11 in the input / output change mode; Control to change the audio and video line output to an input, and control the input selector switch 12 to select one of a signal input from the audio and video line input / output jacks and a signal input from the IFF unit 105. It is characterized by including the microcomputer (2).

Description

VSDIO cassette record system having the fuction usable in common outputs and inputs each of audio and video line jacks}

The present invention relates to a VSI system having a line jack entry / exit function which enables the input side and the output side of a line jack used in a VSI to be interchanged. In particular, an audio input / output line (input / output) line in such a system is used. The jack and the video input / output jacks were fixedly used for common use.

A general VSI system records various video / audio sources on a recording tape and reproduces and records a recorded video / audio program. An example of such a conventional VSI system is illustrated in FIG. 1.

Here, the scat jack 100 for connecting various input / output audio / video / control signals in the system, the phone jack connecting portion 101 for connecting various external audio / video signals through the phone jack, and the TV receiver antenna and the tuner side. And an RF modulator 103, a power supply unit 102 for supplying system power, a BC tuner 104 for receiving broadcast signals, and an IF unit 105 for intermediate frequency processing and demodulation.

In addition, the system includes an OSD unit 106 for performing scheduled recording and channel preset information, and a video recording / reprocessing unit 107 for processing a video signal when recording or playing a video signal. The amplifier module 112 amplifies the output signal processed by the video recording / reprocessing unit 107 to a predetermined size and provides the video head to the VH side, and a timer for performing various reserved time / channel digitron driving operations. And a servo circuit for driving control of the deck-side motor.

In addition, a system control unit 111 including a system microcomputer 2 for controlling various processing operations of the system, a logic circuit unit 108 including key input and display means, and an audio recording / reprocessing unit of an audio system 109, an input selector 110 for selectively connecting an air broadcasting system input and an external input, a cam switch for providing information on the deck side to the system microcomputer 2, a drum motor DM, and a capstan motor ( CM), a loading motor LM, an audio head AH, and the like.

The system circuit associated with the phone jack connection 101 in the system is shown in more detail as shown in FIG.

Here, the audio line output jack ALO and the audio line input jack ALI are connected to the IFF unit 105 and the audio recording processing unit 109, and the video line output jack VLO is connected to the video recording unit 107. And video line input jacks (VLI) are installed.

In addition, an audio channel / line selection switch 21 for selecting a line and a broadcast signal is installed between the audio line input jack ALI, the IF unit 105, and the audio recording processing unit 109. A video channel / line select switch 22 for selecting a line and a broadcast system signal is also provided between the jack VLI, the IFP unit 105, and the video recording material processing unit 107.

In the circuit, the audio line input / output jacks (ALI, ALO) and the video line input / output jacks (VLI, VLO) are respectively fixedly used as input and output jacks of the audio line signal or as input and output jacks of the video line signal. It is done.

However, in the prior art, four external connection jacks such as audio line input / output jacks (ALI, ALO) and video line input / output jacks (VLI, VLO) are fixed as input and output. Fixed use of input or output jacks is not efficient.

The present invention is to solve the problems as described above, by allowing the external line connection jacks used in the VSI system to be selected and used as a common input, the line to use these jacks for various purposes according to the user's needs It is an object of the present invention to provide a VSI system having a jack entrance and exit function.

1 is a circuit block diagram of a typical VSI system

2 is a system circuit block diagram related to a conventional line jack

3 is a circuit block diagram according to the present invention.

** Description of symbols for the main parts of the drawing **

2. Microcomputer 11. Entry / exit changeover switch

12. Input selector switch

A VSI system having a line jack entry / exit function according to the present invention is a VSI system including a tuner unit, an F unit, an audio recording processing unit, a video recording processing unit, an audio line input / output jack, and a video line input / output jack. An input / output change switch unit connected to a video line output terminal for input / output change, an input selection switch unit connected to an audio and video line input terminal to select each input signal, and the input / output change switch unit in an input / output change mode And a microcomputer for controlling to change the audio and video line output terminals to inputs and to control the input selection switch unit to select one of a signal input from the audio and video line input / output jacks and a signal input from the IUF unit. It is done.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 shows a circuit block diagram of a VSI system having a line jack entry and exit function according to the present invention.

In this example, an input / output change switch unit configured to select an input / output change of line jacks between the IFP unit 105, the audio recording member 109 and the video recording member 107, and the line input / output terminals leading to the line side of the VSI system ( 11) and an input selection switch section 12, and a microcomputer 2 for controlling the entry / exit switch section 11 and the input selection switch section 12 to change the entry and exit of the line jacks.

The entry / exit change switch section 11 functions as an electronic switch under the control of the microcomputer 2, and the fixed contacts a, a1, b, and b1 to which the movable terminals connected to the fixed contacts c and c1 are selectively connected. Consists of

Here, the fixed contact c is connected to the audio line output jack ALO, the fixed contact c1 is connected to the video line output jack VLO, and the fixed contact a is the output side of the audio recording material processing unit 109 and the fixed contact a1 is The output side of the video rust processing unit 107 is respectively connected, the fixed contact b is connected to the fixed contact f of the input selection switch unit 12, and b1 is connected to f1.

Then, the movable terminals are connected to the fixed contacts g and g1 of the input selection switch unit 12, and are connected to the input sides of the audio and video recording material processing units 109 and 107, and the output sides of the IF unit 105 are fixed to the fixed contacts d and d1. The audio and video line input jacks ALI and VLI are connected to the fixed contacts e and e1, respectively.

The present invention of such a configuration is that when the user gives the microcomputer 2 a line input / output change setting command through a key input unit such as a remote control transmitter, the microcomputer 2 switches from the current mode to the entry / exit change mode.

For example, under the normal state, the movable terminal of the entry / exit switch 11 is connected to the fixed contact ca, c1-a1 so that the audio line output jack ALO and the video line output jack VLO are connected to the audio recording processing unit 109 and the video. It is connected to the output side of the green ash processing unit 107 is used as a normal audio / video output jack.

In this case, the fixed contacts of the input selection switch unit 12 are connected such that the output signals d-g and d1-g1 or the line input signals e-g and e1-g1 of the IF module 105 work effectively.

On the other hand, in the entry / exit change mode, the movable terminal of the entry / exit switch 11 is connected to the fixed contacts cb and c1-b1 so that the audio line output jack ALO and the video line output jack VLO are connected to the audio recording processing unit 109. It is connected to the input side of the video recording processing unit 107 to act as an input jack.

In this case, the fixed contacts of the input selection switch unit 12 are connected so that the output signals dg and d1-g1 or the line input signals eg and e1-g1 of the IF module 105 are all effectively operated. The signals gf and g1-f1 inputted from the line output terminals changed to are also connected to act effectively.

According to the present invention, the external audio / video line input / output jacks used in the VSI system can be switched to use the [INPUT, OUTPUT] or [INPUT 1, INPUT 2] according to the user's needs, thereby There is a unique effect that allows you to use a variety of external audio / video line input / output jacks.

Claims (1)

(Correction) A VRS system including a tuner section, an IF section, an audio recording section, a video recording section, an audio line input / output jack, and a video line input / output jack, connected to an audio and video line output terminal so that input / output change can be made. An input / output change switch unit 11, an input selection switch unit 12 connected to an audio and video line input terminal to select each input signal, and controlling the input / output change switch unit 11 in an input / output change mode; A microcomputer that changes the audio and video line output stages to an input and controls the input selection switch section 12 to select one of a signal input from the audio and video line entry / exit jacks and a signal input from the IF module 105. (2) a BC system having a line jack entry and exit function.