KR19980058176U - Control signal compensation circuit during VCR playback - Google Patents
Control signal compensation circuit during VCR playback Download PDFInfo
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- KR19980058176U KR19980058176U KR2019970002552U KR19970002552U KR19980058176U KR 19980058176 U KR19980058176 U KR 19980058176U KR 2019970002552 U KR2019970002552 U KR 2019970002552U KR 19970002552 U KR19970002552 U KR 19970002552U KR 19980058176 U KR19980058176 U KR 19980058176U
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Abstract
본 고안은 VCR재생시 콘트롤신호보상회로에 관한 것으로, 특히 본 고안은 VCR재생시 재생테이프에 콘트롤신호가 있으면 OUT단자로 콘트롤신호를 출력하고, 재생테이프에 콘트롤신호가 없으면 제너레이터에서 발생한 신호에 의해 콘트롤신호를 보상하여 화면의 흔들림을 보상해 줌으로써 사용자에게 좋은 화면을 제공하는데 목적이 있다.The present invention relates to a control signal compensation circuit during VCR playback. In particular, the present invention outputs a control signal to the OUT terminal if a control signal is present on the playback tape during VCR playback. The purpose of the present invention is to provide a good screen to the user by compensating for the shaking of the screen by compensating for the control signal.
상기의 목적을 달성하고자 본 고안은, VCR재생시 재생테이프에 콘트롤신호가 없으면 재생이퀄라이저앰프에서 나오는 신호를 디지탈신호로 변환시키는 아날로그/디지탈변환기(A/DC)와, 변환된 디지탈신호에 의해 콘트롤신호의 유,무를 판단하는 콘트롤신호유,무판단부(10)와, 콘트롤신호가 없으면 RF교류전압을 발생시키는 제너레이터(20와, 콘트롤신호의 유,무에 따라 a 또는 b접점단자에 접속되는 스위치(SW)로 구성된 콘트롤신호보상회로부(100)를 구비한 것을 특징으로 한다.In order to achieve the above object, the present invention provides an analog / digital converter (A / DC) for converting a signal from a reproduction equalizer amplifier into a digital signal if there is no control signal on the playback tape during VCR playback, and is controlled by the converted digital signal. The control signal presence and absence judging section 10 for judging the presence or absence of a signal, and the generator 20 for generating an RF alternating voltage if there is no control signal, are connected to a or b contact terminals depending on the presence or absence of a control signal. It characterized in that it comprises a control signal compensation circuit unit 100 composed of a switch (SW).
Description
본 고안은 VCR(비데오카셋트레코오더)재생시 콘트롤신호보상회로에 관한 것으로, 좀더 상세하게는 VCR재생시 재생테이프에 콘트롤신호가 없을 경우 제너레이터로 부터 발생한 신호에 의해 콘트롤신호를 보상하여 화면의 흔들림을 방지시킬 수 있도록 하는 VCR재생시 콘트롤신호보상회로에 관한 것이다.The present invention relates to a control signal compensation circuit when playing a VCR (Video Cassette Recorder). More specifically, when there is no control signal on the playback tape during VCR playback, the control signal is compensated by a signal generated by the generator to shake the screen. The present invention relates to a control signal compensation circuit for reproducing a VCR.
특히 본 고안은 VCR재생시 재생테이프에 콘트롤신호가 없으면 제너레이터에서 발생한 신호에 의해 콘트롤신호를 보상하여 화면의 흔들림을 방지시키도록 하는 콘트롤신호보상회로부를 제공함에 있다.In particular, the present invention is to provide a control signal compensation circuit to compensate for the control signal by the signal generated from the generator to prevent the shaking of the screen if there is no control signal on the playback tape during VCR playback.
특히 본 고안은 VCR재생시 재생테이프에 콘트롤신호가 없으면 제어앰프에서 나오는 신호를 디지탈신호로 변환시키는 아날로그/디지탈변환기와, 아날로그/디지탈변환기로 부터 변환된 디지탈신호에 의해 콘트롤신호의 유,무를 판단하는 콘트롤신호유,무판단부와, 콘트롤신호가 없으면 RF의 교류전압을 발생하는 제너레이터와, 콘트롤신호가 있으면 a접점으로 접속되어 콘트롤신호를 출력하고, 콘트롤신호가 없으면 b접점으로 접속되어 보상된 콘트롤신호를 출력하는 스위치를 제공함에 있다.In particular, the present invention determines the presence or absence of a control signal based on an analog / digital converter for converting a signal from the control amplifier to a digital signal and a digital signal converted from an analog / digital converter when there is no control signal on the playback tape during VCR playback. If there is no control signal, it is connected to the generator which generates the AC voltage of RF, and if there is no control signal, it is connected to contact a and outputs the control signal. A switch for outputting a control signal is provided.
이와같이 VCR재생시 콘트롤신호를 보상하는 콘트롤신호보상회로부를 제공함으로써 화면의 흔들림을 방지시키고 사용자에게 좋은 화면을 제공하도록 하는데 있다.In this way, by providing a control signal compensation circuit that compensates for the control signal during VCR playback, it is possible to prevent the shaking of the screen and provide a good screen to the user.
종래의 VCR재생회로도는 도 1에 도시되어 있다. 도 1에 도시된 VCR재생회로는 크게 나누어 콘트롤헤드(HD)와, VCR재생시 재생특성을 보상하기 위한 제어앰프(CTL-AMP1).(CTL-AMP2)로 구성되어 있다.A conventional VCR regeneration circuit diagram is shown in FIG. The VCR reproducing circuit shown in FIG. 1 is largely divided into a control head HD and a control amplifier CTL-AMP1. CTL-AMP2 for compensating reproduction characteristics during VCR reproduction.
###즉 입력반전(-)단자가 접지된 제어앰프(CTL-AMP1)의 입력비반전(+)단자를 기준전압단자(Vref)와 콘트롤헤드(HD)일측단자에 연결하고, 상기 제어앰프(CTL-AMP1)의 출력단자에 제어앰프(CTL-AMP2)의 입력비반전(+)단자가 접속가 그의 출력단자를 OUT단에 연결하여서 구성한 것이다.That is, the input inversion (+) terminal of the control amplifier (CTL-AMP1) whose input inversion (-) terminal is grounded is connected to one terminal of the reference voltage terminal (Vref) and the control head (HD), and the control amplifier The input non-inverting (+) terminal of the control amplifier (CTL-AMP2) is connected to the output terminal of (CTL-AMP1) by connecting its output terminal to the OUT terminal.
이와같이 구성된 VCR재생회로는 VCR재생시 재생테이프에 콘트롤신호가 있으면 재생이퀄라이저앰프에 재생특성을 보상한 뒤 보상한 콘트롤신호를 OUT단자로 출력하였으나, 재생테이프에 콘트롤신호가 없으면 OUT단자로 콘트롤신호를 보상해 주지 못함으로써 VCR재생시 화면 흔들림이 발생되어 사용자에게 좋은 화면을 제공해 주지 못하는 단점이 있다.The VCR playback circuit configured as described above outputs the compensated control signal to the OUT terminal after compensating the playback characteristics in the playback equalizer amplifier if there is a control signal on the playback tape, and outputs the control signal to the OUT terminal if there is no control signal on the playback tape. There is a disadvantage in that the screen shake occurs during VCR playback, and thus does not provide a good screen to the user.
본 고안은 상기와 같은 종래의 단점을 해결하고자 이루어진 것으로서, 그 목적은, VCR재생시 재생테이프에 콘트롤신호가 있으면 OUT단자로 콘트롤신호를 출력하고, 재생테이프에 콘트롤신호가 없으면 제너레이터로 부터 발생된 신호에 의해 콘트롤신호를 보상하여 화면의 흔들림을 방지시키고 사용자에게 좋은 화면을 제공할 수 있도록 하는데 있다.The present invention has been made to solve the above-mentioned disadvantages, and its object is to output a control signal to the OUT terminal if there is a control signal on the playback tape during VCR playback, and to generate a control signal from the generator if there is no control signal on the playback tape. By compensating the control signal by the signal to prevent the shaking of the screen and to provide a good screen to the user.
상기의 목적을 달성하고자 본 고안은, VCR재생시 재생테이프에 콘트롤신호가 없으면 제너레이터에서 신호를 발생하여 콘트롤신호를 보상하는 콘트롤신호보상회로부를 구비한 것을 특징으로 한다.In order to achieve the above object, the present invention is characterized in that it comprises a control signal compensation circuit unit for compensating the control signal by generating a signal from the generator when there is no control signal on the playback tape during VCR playback.
또한 본 고안은, VCR재생시 재생테이프에 콘트롤신호가 없으면 재생앰프에서 나오는 신호를 디지탈신호로 변환시키는 아날로그/디지탈변환기와, 변환된 디지탈신호에 의해 콘트롤신호유,무를 판단하는 콘트롤신호유,무판단부와, 콘트롤신호가 없을 경우 RF교류전압을 발생시키는 제너레이터와, 콘트롤신호유,무에 따라 a 또는 b접점단자에 접속되는 스위치를 구비한 것을 특징으로 한다.In addition, the present invention provides an analog / digital converter for converting a signal from the playback amplifier into a digital signal when there is no control signal on the playback tape during VCR playback, and a control signal presence or absence based on the converted digital signal. And a determination unit, a generator for generating an RF alternating voltage in the absence of a control signal, and a switch connected to the a or b contact terminal depending on the presence or absence of the control signal.
도 1은 종래의 VCR재생회로도1 is a conventional VCR playback circuit diagram
도 2는 본 고안의 VCR재생시 콘트롤신호보상을 위한 회로도2 is a circuit diagram for control signal compensation during VCR playback of the present invention;
* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings
100:콘트롤신호보상회로부 10:콘트롤신호유,무판단부100: control signal compensation circuit unit 10: control signal existence, no judgment
20:제너레이터 A/DC:아날로그/디지탈변환기20: Generator A / DC: Analog / Digital Converter
HD:콘트롤헤드 CTL-AMP1,CTL-AMP2:제어앰프HD: Control head CTL-AMP1, CTL-AMP2: Control amplifier
이하 본 고안의 일실시예에 따른 구성을 첨부 도면에 의거하여 보다 상세히 설명하면 다음과 같다.Hereinafter, a configuration according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 고안의 VCR재생시 콘트롤신호보상을 위한 회로도로서, 도 2에서와 같이, 콘트롤헤드(HD)와, 제어앰프(CTL-AMP1),(CTL-AMP2)로 구성된 VCR재생회로에 있어서, 상기 제어앰프(CTL-AMP1)와 OUT단자사이에 VCR재생시 재생테이프에 콘트롤신호가 없으면 제너레이터에서 신호를 발생하여 콘트롤신호를 보상하는 콘트롤신호보상회로부(100)를 연결하여서 구성한 것이다.FIG. 2 is a circuit diagram for control signal compensation during VCR playback according to the present invention. As shown in FIG. 2, in a VCR playback circuit including a control head HD, control amplifiers CTL-AMP1, and CTL-AMP2, FIG. When there is no control signal on the playback tape between the control amplifier (CTL-AMP1) and the OUT terminal, the generator generates a signal and connects the control signal compensation circuit unit 100 to compensate for the control signal.
상기 콘트롤신호보상회로부(100)는 VCR재생시 콘트롤신호가 없으면 제어앰프(CTL-AMP1)에서 나오는 신호를 디지탈신호로 변환시키는 아날로그/디지탈변환기(A/DC)와, 아날로그/디지탈변환기에서 변환된 디지탈신호에 의해 콘트롤신호유,무를 판단하는 콘트롤신호유,무판단부(10)와, 콘트롤신호가 없으면 RF의 교류전압을 발생시키는 제너레이터(20)와, 콘트롤신호의 유,무에 따라 a 또는 b단자에 접속되는 스위치(SW)로 구성된다.The control signal compensation circuit unit 100 is an analog / digital converter (A / DC) for converting a signal from the control amplifier (CTL-AMP1) into a digital signal when there is no control signal during VCR playback, and the analog / digital converter is converted into a digital signal. According to the digital signal, the control signal presence or absence of the control signal to determine the presence or absence of the control signal 10, the generator 20 for generating an AC voltage of the RF without the control signal, and the presence or absence of the control signal, or It consists of a switch SW connected to the b terminal.
이와같이 구성된 본 고안의 작용효과를 설명하면, 먼저 VCR재생시 재생테이프에 콘트롤신호가 있으면 스위치(SW)는 a단자로 접속됨에 따라 콘트롤신호는 제어앰프(CTL-AMP1),(CTL-AMP2)에 의해 재생특성이 보상됨과 동시에 OUT단자로 보상된 콘트롤신호가 출력된다.When explaining the operation effect of the present invention configured as described above, if there is a control signal on the playback tape during VCR playback, the switch (SW) is connected to the terminal a, so that the control signal is connected to the control amplifiers (CTL-AMP1) and (CTL-AMP2). As a result, the reproduction characteristics are compensated and the control signal compensated by the OUT terminal is output.
만일 재생테이프에 콘트롤신호가 없으면 a접점단자에 접속된 스위치(SW)가 다시 b접점단자로 접속됨에 따라 제어앰프(CTL-AMP1)에서 나오는 신호가 콘트롤신호보상회로부(100)내의 아날로그/디지탈변환기(A/DC)에 의해 디지탈신호로 변환되고, 따라서 변환된 디지탈신호에 의해 콘트롤신호유,무판단부(10)에서는 콘트롤신호유,무를 판단하여 콘트롤신호가 없으면 제너레이터(20)로 콘트롤신호를 보상할 수 있도록 명령데이터를 보낸다. 그럼 제너레이터(20)는 그 명령데이터에 의해 콘트롤신호를 보상할 수 있는 RF교류전압을 b접점단자에 접속된 스위치(SW)를 통해 OUT단자로 출력시킨다.If there is no control signal on the play tape, the signal from the control amplifier CTL-AMP1 is transferred to the analog / digital converter in the control signal compensation circuit unit 100 as the switch SW connected to the a contact terminal is connected to the b contact terminal again. A / DC is converted into a digital signal, and according to the converted digital signal, the control signal presence / absence determination unit 10 determines whether the control signal is present or not, and if there is no control signal, the control signal is transmitted to the generator 20. Send command data to compensate. The generator 20 then outputs an RF AC voltage that can compensate the control signal by the command data to the OUT terminal through the switch SW connected to the b contact terminal.
이와같이 VCR재생시 재생테이프에 콘트롤신호가 없으면 제너레이터에서 발생한 전압에 의해 콘트롤신호를 보상함으로써 VCR재생시 화면의 흔들림을 보상하게 되는 것이다.As such, if there is no control signal on the playback tape during VCR playback, the control signal is compensated by the voltage generated by the generator to compensate for the shaking of the screen during VCR playback.
이상에서와 같이 동작되는 본 고안은, VCR재생시 재생테이프에 콘트롤신호가 있으면 OUT단자로 콘트롤신호를 출력하고, 재생테이프에 콘트롤신호가 없으면 제너레이터에서 발생한 전압에 의해 콘트롤신호를 보상함으로써 화면의 흔들림을 보상함과 동시에 사용자에게 좋은 화면을 제공해 주는 그 효과가 있다.The present invention, which operates as described above, outputs a control signal to the OUT terminal if a control signal is present on the playback tape during VCR playback. It has the effect of compensating for and providing a good screen to the user.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970002552U KR19980058176U (en) | 1997-02-19 | 1997-02-19 | Control signal compensation circuit during VCR playback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970002552U KR19980058176U (en) | 1997-02-19 | 1997-02-19 | Control signal compensation circuit during VCR playback |
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| KR19980058176U true KR19980058176U (en) | 1998-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR2019970002552U KR19980058176U (en) | 1997-02-19 | 1997-02-19 | Control signal compensation circuit during VCR playback |
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| KR (1) | KR19980058176U (en) |
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1997
- 1997-02-19 KR KR2019970002552U patent/KR19980058176U/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WITN | Withdrawal due to no request for examination |