KR910000091Y1 - Tape selecting circuit for double deck cassette tape recorder - Google Patents

Tape selecting circuit for double deck cassette tape recorder Download PDF

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Publication number
KR910000091Y1
KR910000091Y1 KR2019860011454U KR860011454U KR910000091Y1 KR 910000091 Y1 KR910000091 Y1 KR 910000091Y1 KR 2019860011454 U KR2019860011454 U KR 2019860011454U KR 860011454 U KR860011454 U KR 860011454U KR 910000091 Y1 KR910000091 Y1 KR 910000091Y1
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tape
deck
switch
selection
select
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KR2019860011454U
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Korean (ko)
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KR880003199U (en
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김주학
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삼성전자 주식회사
한형수
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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
    • G11B15/05—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors

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  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

내용 없음.No content.

Description

더블 데크 카세트 테이프 레코더용 테이프 선택회로Tape Selection Circuit for Double-Deck Cassette Tape Recorder

제1도는 본 고안에 따른 더블 데크 카세트 테이프 레코더용 테이프 선택회로의 개략적 구성도.1 is a schematic configuration diagram of a tape selection circuit for a double deck cassette tape recorder according to the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

SW1, SW2: 테이프 선택 스위치 SW3: 데크 선택 스위치SW 1 , SW 2 : Tape Selection Switch SW 3 : Deck Selection Switch

SW4, SW5: 출력 자동절환스위치 10 : 테이프 이퀄라이저 ICSW 4 , SW 5 : Output Automatic Switch 10: Tape Equalizer IC

11 : 증폭기 12 : 테이프 선택회로11 amplifier 12 tape selection circuit

13 : 데크 선택회로 20 : 테이프 선택 오동작 방지회로13 deck selection circuit 20 tape selection malfunction prevention circuit

본 고안은 일반적으로 더블 데크 카세트 테이프 레코더용 테이프 선택회로에 관한 것으로, 특히 각 데크에 장착된 테이프의 종류에 따라 오동작이 발생되지 않도록 하기 위한 더블데크 카세트 테이프 레코더용 테이프 선택회로에 관한 것이다.The present invention generally relates to a tape selection circuit for a double deck cassette tape recorder, and more particularly, to a tape selection circuit for a double deck cassette tape recorder for preventing malfunctions according to the type of tape mounted to each deck.

종래의 더블 데크 카세트 테이프 레코더에서는 각 데크에 대하여 테이프 이퀄라이저 IC가 필요하므로 2개의 테이프 이퀄라이저 IC를 사용하여 왔으나, 최근에는 1개의 IC만으로도 더블데크 카세트를 구동시킬 수 있도록 되었다. 이때 발생하는 문제점은 A데크와 B데크의 동작시 2개의 테이프 선택스위치중 어느쪽을 선택하여야 할지 혼동되는 경우가 많고, 또한 테이프 선택스위치를 잘못 선택하여 작동시킬 경우, 예를들어 A데크에 메탈 테이프를 장착시켜 녹음/재생 기능을 수행함에 있어서 B데크축의 테이프 선택스위치를 메탈 테이프 선택위치로 작동시킨 경우등에는 만족할 만한 녹음/재생 기능을 수행할 수 없게 된다.In the conventional double deck cassette tape recorder, since a tape equalizer IC is required for each deck, two tape equalizer ICs have been used. Recently, a double deck cassette can be driven by only one IC. The problem that occurs is often confused as to which of the two tape select switches should be selected during the operation of deck A and deck B. Also, if the tape select switch is operated incorrectly, for example, metal on deck A When the tape is mounted to perform the recording / playback function, when the tape select switch of the B deck shaft is operated to the metal tape selection position, the satisfactory recording / playback function cannot be performed.

본 고안은 상기한 점을 감안하여 각 데크에 장착된 테이프의 종류에 따라 언제든지 정확한 테이프 선택을 행할 수 있도록 함과 동시에 사용자가 테이프 선택스위치를 잘못 선택하여 작동시키더라도 오동작이 발생되지 않도록 하기 위한 더블데크 카세트 테이프 레코더용 테이프 선택회로를 제공하는데 그 목적이 있다.In consideration of the above points, the present invention allows accurate tape selection at any time according to the type of tape mounted on each deck, and at the same time, it is possible to prevent malfunctions even if the user selects and operates the tape selection switch incorrectly. It is an object of the present invention to provide a tape selection circuit for a deck cassette tape recorder.

첨부된 도면은 본 고안에 따른 테이프 선택회로의 개략적 구성도이다.The accompanying drawings are schematic configuration diagrams of a tape selection circuit according to the present invention.

도면에 있어서, 스위치(SW1)는 B데크측의 테이프 선택스위치이고, 스위치(SW2)는 A데크측의 테이프 선택스위치로서, 각 데크에 장착된 테이프의 종류가 메탈 테이프일 경우에는 각각의 스위치(SW1) 및 (SW2)는 M단자(메탈 테이프 선택단자)에 연결되고, 노말 테이프일 경우에는 N단자(노말 테이프 선택단자)에 연결되는 것이다. 또한, 스위치(SW3)는 데크 선택 스위치로서, ″온″ 상태에서는 A데크가 선택되고 ″오프″ 상태에서는 B데크가 선택된다.In the figure, the switch SW 1 is a tape select switch on the B deck side, and the switch SW 2 is a tape select switch on the A deck side, and each type of tape mounted on each deck is a metal tape. The switches SW 1 and SW 2 are connected to an M terminal (metal tape selection terminal), and in the case of a normal tape, are connected to an N terminal (normal tape selection terminal). In addition, the switch SW 3 is a deck selection switch in which A deck is selected in the ″ on ″ state and B deck is selected in the ″ off ″ state.

한편, 스위치(SW4) 및 (SW5)는 2채널 아날로그 스위치로 구성되어, 데크 선택스위치(SW3)와 테이프 선택스위치(SW1) 또는 (SW2)의 작동상태에 따라 출력을 자동 절환하는 출력 자동절환스위치이다.On the other hand, the switch (SW 4 ) and (SW 5 ) is composed of a two-channel analog switch, the output is automatically switched according to the operating state of the deck selection switch (SW 3 ) and tape selection switch (SW 1 ) or (SW 2 ) Output automatic switching switch.

본 고안에 따른 테이프 선택회로는 테이프 선택스위치(SW1) 및 (SW2)와 데크 선택스위치(SW3) 및 테이프 이퀄라이저 IC(10)로 구성된 기존의 테이프 선택회로에 NPN트랜지스터(Q1) 및 PNP트랜지스터(Q2)와 다이오우드(D1) 및 (D2)와 저항(R6) 내지 (R10)으로 구성된 테이프 선택오동작 방지회로(20)를 추가한 것이다.Tape selection circuit according to the present invention is a tape selection switch (SW 1 ) and (SW 2 ) and the deck selection switch (SW 3 ) and tape equalizer IC 10 in the conventional tape selection circuit consisting of NPN transistor (Q 1 ) and The tape select malfunction prevention circuit 20 including the PNP transistor Q 2 , the diodes D 1 and D 2 , and the resistors R 6 to R 10 is added.

테이프 이퀄라이저 IC(10)에는 상기에 언급한 출력 자동 절환스위치(SW4) 및 (SW5)와 증폭회로(11)와 테이프 선택회로(12) 및 데크 선택회로(12)가 내장되어 있다.The tape equalizer IC 10 incorporates the above-mentioned output automatic switching switches SW 4 and SW 5 , an amplifying circuit 11, a tape selecting circuit 12, and a deck selecting circuit 12.

본 고안에 따른 테이프 선택회로의 동작은 다음과 같다.The operation of the tape selection circuit according to the present invention is as follows.

만약, A데크를 선택하고 B데크는 오프상태로 한다면 데크선택스위치(SW3)를 오프상태로 한다. 이때 테이프 이퀄라이저 IC(10)의 b단자에 ″하이″ 상태의 신호가 인가되어 데크선택회로(13)를 통해 하이상태의 제어신호를 출력시키고, 데크선택회로(13)로 부터의 하이상태 제어신호에 따라 데크선택용 출력 자동절환스위치(SW4)가 하이상태 구동단자(X1)에 연결된다. 이에 따라, 이퀄라이저 IC(10)의 f단자를 통해 신호가 출력되어 A데크헤드(2)를 동작시키게 된다.If deck A is selected and deck B is in the off state, turn the deck selection switch (SW 3 ) off. At this time, a ″ high ″ state signal is applied to the b terminal of the tape equalizer IC 10 to output a high state control signal through the deck selection circuit 13 and a high state control signal from the deck selection circuit 13. Deck select output automatic changeover switch (SW 4 ) is connected to the high state drive terminal (X 1 ). Accordingly, a signal is output through the f terminal of the equalizer IC 10 to operate the A deck head 2.

이때, 테이프 선택스위치의 동작을 보면, 데크 선택스위치(SW3)가 오프상태이므로 다이오우드(D4)를 통한 하이상태의 전압은 테이프 선택 오동작 방지회로(20)의 NPN트랜지스터(Q1) 및 PNP트랜지스터(Q2)의 베이스에 각각 인가된다.At this time, the operation of the tape select switch, since the deck select switch (SW 3 ) is off, the voltage of the high state through the diode (D 4 ) is the NPN transistor (Q 1 ) and PNP of the tape select malfunction prevention circuit 20 It is applied to the base of transistor Q 2 , respectively.

이 경우, NPN트랜지스터(Q1)는 온상태로 되고 PNP트랜지스터(Q2)는 오프상태가 된다.In this case, the NPN transistor Q 1 is turned on and the PNP transistor Q 2 is turned off.

이와 같은 상태에서, A데크에 장착된 테이프가 메탈 테이프일 경우에, A데크측의 테이프 선택스위치(SW2)를 M단자에 연결시키게 되면, 전원전압(B+)이 저항(R7)과 다이오우드(D2)를 거쳐 IC(10)의 a단자에 인가되고, 이에 따라 테이프 선택회로(12)로 부터 하이상태의 제어신호가 발생되어 테이프 선택용 출력 자동절환스위치(SW5)를 하이상태 구동단자(X1)에 연결 시키게 된다.In this state, when the tape mounted on the deck A is a metal tape, when the tape select switch SW 2 of the deck A is connected to the M terminal, the power supply voltage B + is connected to the resistor R 7 . It is applied to terminal a of IC 10 via diode D 2 and accordingly a high state control signal is generated from the tape selection circuit 12 to switch the tape selection output automatic switching switch SW 5 to a high state. It is connected to the driving terminal (X 1 ).

이때, 사용자가 잘못하여 B데크측의 테이프 선택스위치(SW2)를 작동시키더라도 NPN트랜지스터(Q1)이 온상태이므로 IC(10)에는 아무런 영향을 미치지 않게 된다.At this time, even if the user incorrectly operates the tape select switch SW 2 on the B deck side, since the NPN transistor Q 1 is on, the IC 10 has no effect.

상기와는 반대로, 데크선택스위치(SW3)를 온시키게 되면 B데크가 동작하게 되고, 트랜지스터(Q1)과 (Q2)의 동작도 서로 반전되어 상술한 바와는 서로 반대의 동작을 하게 된다.On the contrary, when the deck select switch SW 3 is turned on, the B deck is operated, and the operations of the transistors Q 1 and Q 2 are also inverted to perform the opposite operations as described above. .

이와같이, 테이프 선택은 간단하게 선택스위치를 변화하여 이루어지며, 각 데크의 동작시 각 데크에 장착된 테이프의 종류에 따라 테이프 선택스위치를 잘못 작동시켜도 오동작이 발생하지 않게 되므로, 만족할 만한 녹음/재생기능을 수행할 수 있게 된다.In this way, the tape selection is made by simply changing the selection switch, and when the deck is operated, a malfunction does not occur even if the tape selection switch is operated incorrectly according to the type of tape mounted on each deck. Will be able to perform

Claims (1)

더블 데크 카세트 테이프 레코더의 각 데크에 장착된 테이프의 종류에 따라 테이프 선택스위치를 작동시켜서 적절한 동작을 수행하도록 하기 위하여, 각 데크에 대한 테이프 선택스위치(SW1) 및 (SW2)와, 동작중인 데크를 선택하기 위한 데크 선택스위치(SW3)와, 테이프 이퀄라이저 IC(10)를 구비하되, 상기 테이프 이퀄라이저 IC(10)에는 증폭회로(11)와, 테이프선택회로(12)와, 데크선택회로(B)와, 데크 선택용 출력자동절환스위치(SW4) 및 테이프 선택용 출력자동절환스위치(SW5)가 내장되어 있는 더블 데크 카세트 테이프 레코더용 테이프 선택회로에 있어서, 상기한 테이프선택스위치(SW1)는 저항(R6)을 통해 트랜지스터(Q1)의 콜렉터에 연결되고, 트랜지스터(Q1)의 베이스는 저항(R9)과 다이오드(D3)를 통해 데크 선택스위치(SW3)에 연결되며, 상기한 테이프선택스위치(SW2)는 저항(R7)을 통해 트랜지스터(Q2)의 에미터에 연결되고, 트랜지스터(Q2)의 베이스는 저항(R8)과 접지 저항(R10)을 통해 데크선택스위치(SW3)에 연결되어 구성되는 것을 특징으로 하는 더블 데크 카세트 테이프 레코더용 테이프 선택회로.In order to perform the proper operation by operating the tape select switch according to the type of tape mounted on each deck of the double-deck cassette tape recorder, the tape select switches (SW1) and (SW2) for each deck and the operating deck are A deck select switch (SW3) and a tape equalizer IC (10) for selecting, wherein the tape equalizer IC (10) includes an amplifier circuit (11), a tape select circuit (12), and a deck select circuit (B). And a tape selection circuit for a double deck cassette tape recorder having a built-in deck selection output switch (SW4) and a tape selection output switch (SW5), wherein the tape selection switch (SW1) is a resistor ( It is connected to the collector of transistor Q1 through R6, and the base of transistor Q1 is connected to deck select switch SW3 through resistor R9 and diode D3, and the tape select switch S described above. W2) is connected to the emitter of transistor Q2 via resistor R7, and the base of transistor Q2 is connected to deck select switch SW3 via resistor R8 and ground resistor R10. Tape selection circuit for a double deck cassette tape recorder, characterized in that.
KR2019860011454U 1986-07-31 1986-07-31 Tape selecting circuit for double deck cassette tape recorder KR910000091Y1 (en)

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KR2019860011454U KR910000091Y1 (en) 1986-07-31 1986-07-31 Tape selecting circuit for double deck cassette tape recorder

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KR2019860011454U KR910000091Y1 (en) 1986-07-31 1986-07-31 Tape selecting circuit for double deck cassette tape recorder

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KR880003199U KR880003199U (en) 1988-04-13
KR910000091Y1 true KR910000091Y1 (en) 1991-01-18

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