KR920004163Y1 - Dubbing recording device for double deck - Google Patents
Dubbing recording device for double deck Download PDFInfo
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- KR920004163Y1 KR920004163Y1 KR2019890012621U KR890012621U KR920004163Y1 KR 920004163 Y1 KR920004163 Y1 KR 920004163Y1 KR 2019890012621 U KR2019890012621 U KR 2019890012621U KR 890012621 U KR890012621 U KR 890012621U KR 920004163 Y1 KR920004163 Y1 KR 920004163Y1
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- dubbing
- noise reduction
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/107—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating tapes
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
- G11B5/00813—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic tapes
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- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
Abstract
내용 없음.No content.
Description
제 1 도는 종래 기술에 따른 음향기기의 더빙녹음회로도.1 is a dubbing recording circuit diagram of an acoustic apparatus according to the prior art.
제 2 도는 본 고안의 회로구성도이다.2 is a circuit diagram of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 녹음/재생스위치 2 : 재생전용헤드1: recording / playback switch 2: head for playback
3 : 재생등화증폭기 4 : 돌비잡음감소 증폭기3: reproduction equalization amplifier 4: Dolby noise reduction amplifier
5 : 라인입력 증폭기 8, 9, 24, 25, 27 : 트랜지스터5: line input amplifier 8, 9, 24, 25, 27: transistor
11 : 녹음 증폭기 12 : 녹음주파수 특성보상회로11: recording amplifier 12: recording frequency characteristic compensation circuit
13 : 녹음 발진회로 14 : 녹음/재생헤드13: recording oscillation circuit 14: recording / playback head
21 : 더빙 증폭기21: dubbing amplifier
본 고안은 더블테크 음향기기의 더빙장치에 관한 것으로서 특히, 음향기기의 더빙녹음시 모니터 잡음을 감소 시키기 위한 더빙녹음 장치에 관한 것이다.The present invention relates to a dubbing apparatus for a double-tech acoustic apparatus, and more particularly, to a dubbing recording apparatus for reducing monitor noise during dubbing recording of an acoustic apparatus.
종래의 음향기기 더빙녹음 장치는 제 1 도에 도시한 바와같이 구성되었던 바, 이에대해 간략히 설명한다. 우선 녹음시 사용자는 녹음/재생스위치(1)를 작동시켜, 재생전용데크를 재생모드로하고 녹음/재생데크를 녹음모드로 한다. 이렇게 되면, 재생헤드(2)에 의해 재생된 신호는 재생등화 증폭기(3)에 의해 증폭된뒤 돌비잡음감소 증폭기(4)의 입력단자(①)에 인가됨과 동시에 라인입력단자(Lin)를 통과한 신호는 라인입력 증촉기(5)에 의해 증폭된뒤 돌비잡음감소 증폭기(4)의 입력단자(②)에 인가된다.The conventional audio equipment dubbing recording apparatus has been constructed as shown in FIG. 1, which will be briefly described. At the time of recording, the user operates the recording / playback switch 1 to set the playback-only deck into the playback mode and the recording / playback deck into the recording mode. In this case, the signal reproduced by the reproduction head 2 is amplified by the reproduction equalization amplifier 3 and then applied to the input terminal ① of the Dolby Noise Reduction Amplifier 4 and simultaneously passes through the line input terminal Lin. One signal is amplified by the line input amplifier 5 and applied to the input terminal ② of the Dolby Noise Reduction Amplifier 4.
이때 돌비잡음감소 증폭기(4)는 입력선택제어단자(3)의 전위가 하이("H")이면 입력자(①)를 선택하고, 로우("L")이면 입력단자(②)를 선택하게 된다. 따라서, 라인입력단자(Lin)를 통과한 신호를 녹음하고자 할 경우 단자(A)에 인가되는 전원(B+)이 저항(6)과 다이오드(7)를 통해 돌비잡음감소 증폭기(4)의 입력선택제어단자(③)에 인가되어 재생등화 증폭기(3)로 부터의 신호를 선택하지만, 녹음/재생데크가 녹음중이므로 단자(B)에는 전원(B+)이 인가되어 트랜지스터(8)가 턴온된다. 트랜지스터(8)가 턴온됨에 따라 돌비잠음감소 증폭기(4)의 입력선택 제어단자(③)의 전위는 로우상태가 되어 단자(②)에 인가되는 라인입력이 선택된다. 따라서, 라인 입력은 모니터 출력단자(④)와 녹음출력단자(⑤)로 출력된다.At this time, the Dolby Noise Reduction Amplifier 4 selects the input terminal ① when the potential of the input selection control terminal 3 is high ("H"), and selects the input terminal (②) when the low ("L") is selected. do. Therefore, when recording the signal passing through the line input terminal Lin, the power supply B + applied to the terminal A is selected through the resistor 6 and the diode 7 to select the input of the Dolby Noise Reduction Amplifier 4. The signal is applied to the control terminal ③ to select the signal from the reproduction equalization amplifier 3, but since the recording / reproducing deck is recording, the power supply B + is applied to the terminal B so that the transistor 8 is turned on. As the transistor 8 is turned on, the potential of the input selection control terminal ③ of the Dolby Sleep reduction amplifier 4 becomes low and the line input applied to the terminal ② is selected. Therefore, the line input is output to the monitor output terminal (4) and the recording output terminal (5).
이때 녹음신호를 돌비잡음감소 증폭기(4)를 동작시켜 녹음하고자 할 경우 도시하지 않은 돌비잡음감소 스위치를 온(ON)시키면 단자(C)에는 하이상태의 전원(B+)이 인가되어 트랜지스터(9)가 턴온된다. 트랜지스터(9)가 턴온됨에 따라 돌비잡음감소 증폭기(4)의 단자(⑥)의 전위는 다이오드(10)를 통과하는 전원이 없기 때문에 로우상태가 되어 잡음감소 효과에 의한 녹음동작을 수행하게 된다. 여기에서 단자(⑥)의 상태가 로우일 경우에는 잡음감소 효과가 있고 하이일 경우에는 잡음 감소 효과가 없다. 단자(⑤)로 출력된 신호는 녹음 증폭기(11)에 의해 증폭된 후 녹음주파수 특성보상용 피킹회로(12)에서 주파수가 보상되어 녹음용 발진회로(13)의 신호와 함께 녹음/재생헤드(14)에 가해져 녹음기능을 수행하게 된다.At this time, when recording the recording signal by operating the Dolby Noise Reduction Amplifier 4, when the Dolby Noise Reduction Switch (not shown) is turned ON, a high power supply B + is applied to the terminal C so that the transistor 9 Is turned on. As the transistor 9 is turned on, the potential of the terminal ⑥ of the Dolby Noise Reduction Amplifier 4 becomes low because there is no power supply passing through the diode 10, and the recording operation is performed by the noise reduction effect. Here, when the state of the terminal ⑥ is low, there is a noise reduction effect, and when it is high, there is no noise reduction effect. The signal output to the terminal ⑤ is amplified by the recording amplifier 11, and then the frequency is compensated in the recording frequency characteristic compensation picking circuit 12 so that the recording / playback head together with the signal of the recording oscillation circuit 13 ( 14) to perform the recording function.
한편, 더빙 녹음하고자 할 경우 도시하지 않은 더빙 스위치를 온시키면 단자(D)에는 전원(B+)이 인가되는바, 이 전원은 다이오드(15)를 통해 돌비잡음감소 증폭기(4)의 입력선택제어단자(③)에 인가되어 돌비잡음감소 증폭기(4)는 재생등화 증폭기(3)의 출력을 선택하게 된다. 따라서, 제생헤드(2)에 의해 재생된 신호는 라인 출력단자(Lout)를 통해 모니터 신호로서 출력됨과 동시에 녹음 증폭기(11)에 인가된다.On the other hand, when the dubbing recording is turned on, the power supply B + is applied to the terminal D when the dubbing switch (not shown) is turned on. The power supply is input selection control terminal of the Dolby Noise Reduction Amplifier 4 through the diode 15. Dolby noise reduction amplifier 4 selects the output of the reproduction equalization amplifier 3 by applying (3). Therefore, the signal reproduced by the regenerative head 2 is output as a monitor signal through the line output terminal Lout and is applied to the recording amplifier 11 at the same time.
그러나, 더빙녹음 재생데크의 내용을 그대로 복사하는 것이므로 잡음감소 증폭기가 동작되면 안되기 때문에 돌비잡음감소 스위치가 온되어 트랜지스터(9)가 턴온되어도 돌비잡음감소 증폭기(4)의 단자(⑥)에는 다이오드(16)를 통과한 하이상태의 전위(B+)가 인가되어 잡음감소 효과는 오프된다.However, since the contents of the dubbing recording reproduction deck are copied as it is, the noise reduction amplifier should not be operated. Thus, even if the transistor 9 is turned on and the transistor 9 is turned on, the terminal (⑥) of the Dolby Noise Reduction Amplifier 4 has a diode ( A high state potential B + passing through 16 is applied, so that the noise reduction effect is turned off.
뿐만아니라, 돌비잡음감소 효과가 오프되므로 스피커로 듣는 모니터음은 잡음감소 효과를 얻지 못하는 결점이 있었다.In addition, since the Dolby Noise Reduction effect is turned off, the monitor sound heard through the speaker has a drawback that the noise reduction effect is not obtained.
따라서, 본 고안은 이러한 사정을 감안하여 더빙시에 정상적인 더빙기능을 수행하되 스피커로 듣는 모니터는 잡음 감소 효과를 유지하기 위한 음향기기의 더빙녹음 장치를 제공하는데 그 목적이 있다.Accordingly, the present invention is to provide a dubbing recording apparatus of an acoustic device for performing a normal dubbing function at the time of dubbing in consideration of this situation, but the monitor listening to the speaker to maintain the noise reduction effect.
이러한 목적을 달성하기 위한 본 고안은 재생테이프 신호와 외부라인 신호를 선택하여 잡음감소 효과에 의한 녹음을 수행하기 위한 돌비잡음감소 증폭기를 구비한 더블테크 음향기기의 더빙녹음장치에 있어서, 더빙녹음시 재생테이프 신호를 증폭시키기 위한 더빙증폭기와, 더빙녹음시에는 더빙증폭기에 의해 증폭된 재생테이프 신호를 녹음 증폭기에 인가시키며, 외부라인 녹음시에는 돌비잡음감소 증폭기에 의해 발생된 잡음감소 효과에 의한 녹음을 수행하기 위한 스위칭회로로 구성시켜서 된것이다.In order to achieve the above object, the present invention provides a dubbing recording apparatus for a double-tech audio device having a Dolby Noise Reduction Amplifier for selecting a playback tape signal and an external line signal to perform recording by noise reduction effect. A dubbing amplifier for amplifying the reproduction tape signal, and a reproduction tape signal amplified by the dubbing amplifier during dubbing recording is applied to the recording amplifier, and recording is performed by the noise reduction effect generated by the Dolby Noise Reduction Amplifier during external line recording. It consists of a switching circuit to perform the
이하 본 고안은 제 2 도에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to FIG. 2.
제 2 도는 본 고안에 따른 더빙녹음회로를 도시한것인바, 제 2 도중 제 1도와 동일한 참조번호는 동일부품을 표시한다.Figure 2 shows a dubbing recording circuit according to the present invention, the same reference numerals as those in Figure 1 during the second indicates the same parts.
제 2 도에 도시한 회로에 있어서, 외부라인 신호의 녹음은 제 1 도와 동일하므로 그의 상세한 설명은 생략하는 대신에 더빙녹음에 대해 상세히 설명한다.In the circuit shown in FIG. 2, the recording of the external line signal is the same as that of the first drawing, and therefore, the detailed description thereof will be described in detail with respect to dubbing recording.
우선 더빙녹음시 사용자는 녹음/재생스위치(1)를 작동시켜 재생전용데크를 재생모드로하고, 녹음/재생데크를 녹음모드로 한다. 이렇게 되면, 재생헤드(2)에 의해 재생등화 증폭기(3)에 의해 증폭되어 돌비잡음감소 증폭기(4)의 단자(①)와 더빙증폭부(100)내의 커플링 콘덴서(20)를 통해 더빙증폭기(21)에 동시에 인가된다. 이때 더빙증폭기(21)는 저항(22)(23)에 의해 결정된 레벨신호를 증폭시켜 스위칭부(200)를 구성하는 트랜지스터(24)의 콜렉터에 인가한다.First, during dubbing recording, the user operates the recording / playback switch 1 to set the playback-only deck in the playback mode and the recording / playback deck in the recording mode. In this case, the reproduction head 2 is amplified by the reproduction equalization amplifier 3 and dubbed through the terminal ① of the Dolby Noise Reduction Amplifier 4 and the coupling capacitor 20 in the dub amplifier 100. Are simultaneously applied to (21). At this time, the dubbing amplifier 21 amplifies the level signal determined by the resistors 22 and 23 and applies it to the collector of the transistor 24 constituting the switching unit 200.
한편, 더빙시에 단자(D)에는 전원(B+)이 인가되는바 이 전원은 다이오드(15)를 통해 돌비잡음감소 증폭기(4)의 입력 선택제어단자(③)에 인가되어 재생등화 증폭기(3)의 출력을 선택토록한다. 또한 더빙중에 모니터로 출력되는 신호의 잡음감소 효과를 얻고 싶을 경우, 도시하지 않은 돌비잡음감소용 스위치를 온시키면 단자(C)의 전위가 하이가 되어 트랜지스터(9)를 턴온시킨다. 트랜지스터(9)가 턴온되면, 돌비잡음감소 증폭기(4)의 단자(④)의 전위는 로우상태를 유지하므로 돌비잡음감소 효과를 갖는 신호가 단자(④, ⑤)를 통해 외부 모니터라인(Lout)과 트랜지스터(25)의 콜렉터단자에 인가된다.On the other hand, when dubbing, the power source B + is applied to the terminal D. The power source is applied to the input selection control terminal ③ of the Dolby Noise Reduction Amplifier 4 through the diode 15 to reproduce the equalizing amplifier 3. ) To select the output. In addition, when the noise reduction effect of the signal output to the monitor during dubbing is desired, turning on the Dolby Noise Reduction Switch (not shown) turns on the transistor 9 by turning the potential of the terminal C high. When the transistor 9 is turned on, the potential of the terminal ④ of the Dolby Noise Reduction Amplifier 4 is kept low, so that the signal having the Dolby Noise Reduction effect is transmitted to the external monitor line Lout through the terminals ④ and ⑤. And a collector terminal of the transistor 25.
그런데, 더빙녹음시에는 재생데크의 내용을 그대로 복사하는것이므로 돌비잡음감소 증폭기(4)를 거친 단자(⑤)의 신호가 녹음되면 안되므로 이를 위한 적절한 수단이 강구되어야만 한다. 이를 위해, 제 2 도에 도시한 바와같이, 더빙시 단자(D)는 하이상태를 유지하므로 저항(26)을 통해 트랜지스터(27)가 턴온되도록 하였다.However, during dubbing recording, since the contents of the playback deck are copied as it is, a signal of the terminal ⑤ through the Dolby Noise Reduction Amplifier 4 should not be recorded. Therefore, an appropriate means for this should be taken. To this end, as shown in FIG. 2, the terminal D is kept high during dubbing, so that the transistor 27 is turned on through the resistor 26.
따라서, 트랜지스터(27)가 턴온되면 트랜지스터(25)가 턴오프되어 돌비잡음감소 증폭기(4)의 단자(⑤)로부터 출력된 신호는 녹음증폭기(11)에 인가되지 않는 반면에 D-단자의 전원(B+)이 저항(28)을 통해 트랜지스터(24)의 베이스에 인가된다. 이때 트랜지스터(24)는 턴온되므로 그의 콜렉터단자에 인가된 더빙증폭기(21)의 출력신호는 녹음증폭기(11)에 입력되어 증폭되는바, 이때 주파수 특성보상용 피킹회로(12)에 의해 그의 주파수 특성이 보상된뒤 발진회로(13)의 신호와 함께 녹음/재생헤드(14)에 더빙녹음된다.Therefore, when the transistor 27 is turned on, the transistor 25 is turned off so that the signal output from the terminal ⑤ of the Dolby Noise Reduction Amplifier 4 is not applied to the recording amplifier 11, while the power supply of the D-terminal is supplied. (B +) is applied to the base of transistor 24 via resistor 28. At this time, since the transistor 24 is turned on, the output signal of the dubbing amplifier 21 applied to the collector terminal thereof is input to the recording amplifier 11 and amplified. At this time, the frequency characteristic compensation peaking circuit 12 causes its frequency characteristic to be amplified. This compensation is then dubbed to the recording / playback head 14 together with the signal of the oscillation circuit 13.
전술한 바와같이, 본 고안은 외부라인 신호의 녹음시에는 돌비잡음 효과를 갖고서 녹음 및 모니터가 가능하지만, 더빙 녹음시에는 더빙증폭기(21)를 거쳐 녹음기능을 수행하고 모니터는 돌비잡음감소 증폭기(4)의 잡음 감소 효과를 얻을 수 있는 특징을 지닌것이다.As described above, the present invention is capable of recording and monitoring with a Dolby Noise effect when recording an external line signal, but during dubbing recording, performs a recording function via a dub amplifier 21 and the monitor is a Dolby Noise Reduction Amplifier ( The noise reduction effect of 4) can be obtained.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890012621U KR920004163Y1 (en) | 1989-08-30 | 1989-08-30 | Dubbing recording device for double deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019890012621U KR920004163Y1 (en) | 1989-08-30 | 1989-08-30 | Dubbing recording device for double deck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR910004920U KR910004920U (en) | 1991-03-19 |
| KR920004163Y1 true KR920004163Y1 (en) | 1992-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019890012621U KR920004163Y1 (en) | 1989-08-30 | 1989-08-30 | Dubbing recording device for double deck |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR920004163Y1 (en) |
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1989
- 1989-08-30 KR KR2019890012621U patent/KR920004163Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR910004920U (en) | 1991-03-19 |
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