KR910006029Y1 - Vcp with only reproducing use having play selection function - Google Patents

Abstract

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Description

VCP for exclusive use of reproduction with recording select function

1 is an overall appearance of the present invention.

2 is a schematic diagram of a radio frequency meter of FIG.

3 is a block diagram of the audio signal processing function block of FIG.

4 is a block diagram of a video signal processing function block of FIG.

5 is a functional block diagram of system control and timer microcomputer.

6 is a flow chart of the system control microcomputer.

7 is a flowchart illustrating the operation of a timer microcomputer.

8 is a block diagram of a servo system.

9 is a configuration diagram of a power supply unit.

10 is an overall internal configuration of the present invention.

11 is a perspective view of the connection between the VCP and the recording selector of the present invention.

12 is an external perspective view when the VCP and the recording selector of the present invention are connected.

13 is a diagram showing the functional differences between a VCR and a VCP.

* Explanation of symbols for main parts of the drawings

200: radio frequency conversion unit 210: tuner unit

310, 400, 500, 1010: recording selector 450, 4001: inside view of VCP

800: speed control unit

The present invention relates to a playback-only VCP (VIDEO CASSETTE PLAYER), and more particularly to a playback-only VCP having a selective recording selection function when necessary.

The basic function of the VTR being produced is recording and playback.

There are two types of video, VCR (VIDEO CASSETTE RECORDER) which has recording and playback functions in two sizes.

Conventional playback-only VCPs have the economic burden of having to purchase and use a VCR again when an additional video with recording function is needed, and a consumer wants a VCR when buying a video. When the VCP was purchased with a burden, there was a problem that the future recording function could not be satisfied.

Is the present invention devised in order to solve the above problems, or in order to implement a VCP capable of recording to an existing VCP as an optional function, that is, having a selective recording function, in particular when recording a VCP in the future The purpose of the VCP is to operate like a VCR when the recording function is selected by configuring the input / output device to cope with the function selection.

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

The deck of the VCP, which can optionally have the recording function of the present invention, uses a conventional deck for the VCR to show the functional difference between the VCR of each block and the VCP, as shown in FIG. The VCR but the demodulation stage for demodulating the broadcast signal and the cable broadcasting signal (CATV) and the demodulator for demodulating the signal are present in the VCR but not in the VCP. An EE system for recording signals and color signals is present in the VCR but not in the VCP.

In addition, a timer recording mode and a mode display function exist in the VCR, but not in the VCP, and a recording system controller using a servo function exists in the VCR, but not in the VCP, and a stabilizer for stabilizing the tuning voltage is provided in the VCR. There is a difference, but not in VCP.

A schematic connection diagram of the VCP and the recording selector according to the above items is shown in FIG. 1, and the recording selector is separately used for the existing VCP.

A block diagram of a radio frequency meter of the internal configuration of FIG. 1 is shown in FIG. 2 and includes a radio frequency (RF) converter 200 and a tuner unit 210 of a recording selection unit. It is designed to be placed in one place, and the blocks necessary for recording are designed in one place so that they can be combined with the terminals of the VCP.

The radio frequency converter 200 in the VCP has amplitude and frequency modulators 201 and 202 for modulating radio signals so that a video signal and an audio signal can be viewed on a TV during reproduction. A signal is input from the oscillator 203 for channel switching and frequency oscillation so that the mixer 204 mixes and outputs the signals of the modulators 201 and 202, and broadcast signals to the tuner 201 of the recording selector. And a tuner 211 and a demodulator 213 for demodulating the video signal and the audio signal.

3 shows a voice signal processing block, in which a reproducing system converts an original signal through a reproducing and recording selection switch 301 and an amplifier 302 compensation circuit 303 by outputting a voice signal from the head 300. The recording circuit 310 is configured to record the voice signal on a magnetic tape, and the recording circuit 310 selects an input signal and an amplifier 312 of the automatic gain controller 311 automatically adjusts gain. And a mixer 313 for mixing the output signal of the oscillator 315 oscillated by the recording switch 314.

4 is a block diagram of an image signal unit for processing luminance signals and color signals, and is divided into a playback unit 45 and a recording unit 400 so that the playback unit 450 is installed in the VCP and the recording unit 400 is connected to the recording selector. Install.

The recording unit 400 receives the video signal and passes through the pre- and burst emphasis 402 and 407 to reduce the noise ratio through the low filter 401 and the band filter 406, and then the frequency modulator 403 and The synchronous separator 409 is applied to the peripheral ventilation 408 and the output signal of the frequency modulator 403 is applied to the mixer 405 through the high frequency filter 404, while the synchronous separator 409 separating the synchronization of the video signal is a multiplier ( 410 and the oscillator signals of the phase shifter 411 and the oscillator 413 are applied to the peripheral vent 408 via the sub-converter 412 and the output signal of the peripheral vent 408 is a low pass filter 414. After the mixer 405 is mixed with the output signal of the high filter 404 through the pre-amplifier 416 is applied to the head 460 through the pre- amplifier 416.

The reproduction unit 450 receives the signal output from the head 460 and is modulated by the frequency modulator 423 through the low pass 420 and 422 and then through the low pass 424 and the luminance signal and the color. The signal synchronously separated from the mixer 425 and the synchronous signal separator 438 mixing the signals are connected to the sub-converter 435 through the multiplier 437 and the phase shifter 436 and the The output signal is passed through the peripheral ventilation 426 receiving a signal from the automatic saturation control circuit 421 connected to the low filter 420, the band filter 427, the 1 horizontal signal (H) delay circuit 428 and the mixer ( The deemphasis 430 and the burst gate 431 are applied through the 429.

The output signal of the burst gate 431 is connected to the sub-converter 435 through the voltage control oscillator 434 through an automatic phase controller 432 receives the oscillation signal from the oscillator 433, the de-emphasis ( The output signal of 430 outputs an image signal through the mixer 425.

5 shows a system control block and a timer block, the operation flow of which is shown in FIG.

Set the port to send and receive serial data between the system control microcomputer 503 and the timer microcomputer 501, and the system control microcomputer 503 is built into the VCP to control the playback system and to perform the functions necessary for recording and playback. The timer microcomputer 501 has a built-in function necessary for recording and a function of driving the digitron (FLT) display 502 to be set in the recording selector 500.

The operation may be performed by setting input / output to the microcomputer 501, 503, inputting the microcomputer input switch and the sensing signal, and setting a serial reception state under the control according to the switch and the sensing signal input. According to the system control MICOM (503) key, check whether the play key is input. If the play relation key is input, control the regeneration system of the VCP and set the serial transmission state. The serial transmission state is set immediately. If the recording relationship key is input, the serial transmission state is set after controlling the recording system of the VCR.

After setting the serial transmission state in this manner, the serial data is sent to the timer microcomputer 501.

The microcomputer then waits for input of the initial input switch and the sensing signal.

On the other hand, the operation of driving the timer microcomputer 501 is displayed on the digitron when the input / output is set in the microcomputer 501, 503 as shown in FIG. 7 and then the initial digitron when the key is not turned on after searching for the key. Go to the display state and check the recording key if it is on and set the serial transmission status if the key is input, output the serial data of the recording system, and then set the serial reception status.

If the recording related key is not input, the timer related function is controlled, and then the serial reception state is set. If the recording related key is input, the control unit returns to the initial state after controlling according to the reception data.

FIG. 8 shows a servo block. The deck used for the VCP uses the deck used for the general VCR, and the servo block uses the servo block in the existing VCR.

In operation, the reference signal input through the mode switching switch 809 is mixed with the signal input through the speed controller 801 through the phase controller 807 in the mixer 802 and then the system switching switch 801. The motor 808 is controlled through the driving unit 803 and the mixer 804. The difference signal by the motor 808 is input to the speed controller 801 and the phase controller 807 through the shaping unit 805 and 806. do.

9 illustrates a power supply unit for supplying power to the VCP and the recording selector. The power input to the power transformer 902 through the power plug 901 is rectified by the rectifier 903 for the system and then stabilized. To the VCP and to the recording selector.

FIG. 10 shows the overall functional block described so far, which is divided into the VCP 1001 and the record selector 1010.

As described above, the operation of the present invention is largely divided into a VCP operation and an operation when a recording selector is attached, and the deck has a playback and recording function.

In FIG. 10, a user operates a system control micom 503 function key, so that the system control micom 503 controls each block of the VCP to detect an image signal of a video tape, thereby detecting the brightness and color of the playback unit 450. The signal is processed and output by the signal processor, and the voice signal is processed and output by the voice signal processing block.

Next, a description will be given when a user recording selector 1010 is purchased and attached to the VCP 1001.

Since the VCP design is designed to correspond to the recording selector 1010, the power supply and the signal control line are connected when the scat tweet is connected.

The control of the recording function is performed by a timer microcomputer 501. The user can perform a recording mode by operating a function key of the timer microcomputer 501. The timer microcomputer 501 serializes control data by a function key. It transmits to the system control microcomputer 503 and controls each block of the system control microcomputer 503 VCP 1001 and the recording selector 1010 which received this data to perform the recording mode.

In this way, the VCR becomes the VCR in all possible ways, and when the data is transferred from the system control micom 503 to the timer micom 501, the timer microcom 501 drives the digitron display 502 and displays the state. do.

That is, the display required for recording is displayed by driving the digitron display 502 in the timer microcomputer 501 at the moment the user operates the recording function key.

As such, the internal functions can be summarized as follows.

First, the system control microcomputer 503 is programmed to decode the timer microcomputer 501.

Second, the serial data connecting the VCP and the function selector, the power supply, and the control line are designed to be collected on one side of the VCP and, like the above, to be collected on one side of the recording selector.

Third, when the present invention is realized, a skirt tweet is used because there are many input / output lines connected to the VCP and the recording selector.

The VCP and the recording selector realized in this manner are shown in FIG. 11, and the recording and reproducing apparatus in which the VCP and the recording selector are completely combined to perform the VCR function is shown in FIG.

When operating only with the VCP, the cassette tape can be loaded and played at the same time, and multifunction can be watched by operating function keys such as STILL or SLOW PICTURE SEARCH during play. After inserting the record selector into the VCP, turn on the power and turn on the power. At the same time, the digitron display is initialized and the current time is set by the time key attached to the record selector.

Then operate the record key and set the program number, start time, end time, and record channel.

When recording by the reserved recording program, when the cassette tape is loaded, the recording is made at the reserved recording time, and the playback state can be created by operating the play key even when the recording selector is attached.

As described above, the present invention can be used as a VCR capable of recording when the user purchases a recording selector after the purchase of a VCP capable of responding to the recording selector. As a result, it is possible to improve the function of the purchased VCP by the consumer, thereby obtaining the trust of the maker and securing the potential demand of the selector when selling the VCP.

Claims (3)

A radio frequency converter 200 for converting video signals and audio signals into radio frequencies, an audio signal reproducing system for converting signals read by the head 300 from the cassette tape into audio signals, and read by the head 460 A reproducing unit 450 for converting a signal into a video signal, a system control microcomputer 503 for controlling various functions required for the reproducing operation, a VCP for normal reproducing, which includes a deck and a power supply unit, and The audio signal reproducing system is switched to select playback or recording by the control signal output from the system control microcomputer 503 so that the signal read out from the head 300 is directly converted into the audio signal in the reproducing system at the time of reproduction. At the time of the video signal reproducing unit (301), a reproduction and recording selection switch (301) for providing a signal from the next recording selector to the head (300) is added. In 450, the playback signal of the head 460 provided through the preamplifier 41 is switched by the control signal output from the system control microcomputer 503. And a recording reproduction selection switch 415 for converting and providing a signal provided from the recording selector to the head 460 during recording. The system control micom 503 is provided with a signal provided from the recording selector. Add a control means having a function of performing a recording operation according to the above, and add a servo block for performing a normal servo function according to the recording to the above-described reproduction-only VCP, and receive a broadcast signal A tuner unit 210 of a recording selector for demodulating and outputting a broadcasting channel by demodulating the audio signal of a video signal and inputting the above-described audio signal and the video signal is provided. Is automatically adjusted, and then the recording circuit 310 for mixing the gain control signal and the output signal of the oscillator 315 to provide the playback and recording selection switch 301 and the video signal are input and synchronized. A timer microcomputer 501 and a digital device comprising a recording unit 400 for converting into a signal suitable for recording on a next cassette tape and providing the recording / playback selection switch 415, and control means for performing a recording function. A playback-only VCP having a recording select function, characterized by comprising a recording selector 1010 including a tron display 502. 2. The timer control device of claim 1, wherein the system control micom 503 in the playback-only VCP controls to perform functions corresponding to the recorder attached to the record selector 1010 and the reserved recording key. 501) for exclusive use of playback by the recording selection function. 2. The playback-only VCP with a recording selection function according to claim 1, wherein electrical connection and disconnection between the playback-only VCP and the recording selector is made by a skat connector.