KR920002285Y1 - Melody signal circuit in tape rewinding - Google Patents

Melody signal circuit in tape rewinding Download PDF

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Publication number
KR920002285Y1
KR920002285Y1 KR2019880021615U KR880021615U KR920002285Y1 KR 920002285 Y1 KR920002285 Y1 KR 920002285Y1 KR 2019880021615 U KR2019880021615 U KR 2019880021615U KR 880021615 U KR880021615 U KR 880021615U KR 920002285 Y1 KR920002285 Y1 KR 920002285Y1
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South Korea
Prior art keywords
tape
output
gate
melody
rewinding
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KR2019880021615U
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Korean (ko)
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KR900013126U (en
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김성덕
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삼성전자 주식회사
안시환
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Priority to KR2019880021615U priority Critical patent/KR920002285Y1/en
Publication of KR900013126U publication Critical patent/KR900013126U/en
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Publication of KR920002285Y1 publication Critical patent/KR920002285Y1/en

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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
    • G11B15/06—Control of operating function, e.g. switching from recording to reproducing by sensing features present on or derived from record carrier or container by sensing auxiliary features on record carriers or containers, e.g. to stop machine near the end of a tape
    • 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
    • G11B15/44—Speed-changing arrangements; Reversing arrangements; Drive transfer means therefor

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  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

내용 없음.No content.

Description

테이프 되감기시 멜로디신호 출력회로Melody signal output circuit for tape rewind

제 1 도는 본 고안에 따른 회로의 블럭 다이어그램.1 is a block diagram of a circuit according to the present invention.

제 2 도는 본 고안에 따른 회로의 구체적인 일실시예.2 is a specific embodiment of a circuit according to the present invention.

제 3 도는 본 고안에 따른 회로 각부의 출력상태표.3 is an output state table of each circuit part according to the present invention.

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

3 : 제어수단 4 : 멜로디 발생수단3: control means 4: melody generating means

IC3: NAND 게이트 IC4: NOR 게이트IC 3 : NAND gate IC 4 : NOR gate

IC5: EX-NOR 게이트 IC6: 플립플롭IC 5 : EX-NOR Gate IC 6 : Flip-Flop

IC7: AND 게이트IC 7 : AND gate

본 고안은 테이프 되감기시 멜로디 신호 출력회로에 관한 것으로, 특히 비디오 및 오디오 테이프 레코더 등에 적용되어 테이프 되감기 발생되는 소음 및 지리한 감을 느끼지 못하도록 되어진 멜로디 신호 출력회로에 관한 것이다.The present invention relates to a melody signal output circuit during tape rewinding, and more particularly, to a melody signal output circuit applied to a video and audio tape recorder and the like so as not to feel the noise and the feeling of geographic rewinding.

비디오 및 오디오 테이프 레코더 등은 일반적으로 테이프를 되감기하는 동안 소음이 발생되어 사용자에게 불쾌감을 줄뿐만 아니라 그 시간이 비교적 길게 느껴져 지리한 감을 주게되는 등의 결점이 있었다.Video and audio tape recorders generally have the drawback that noise is generated during the rewinding of the tape, which not only causes discomfort to the user, but also makes the time feel relatively long, giving a sense of geography.

이에 본 고안은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로 테이프를 되감는 동안 멜로디신호가 출력되므로 하므로써 소음발생 상태를 청각적으로 느끼지 못하도록 함과 동시에 지리한 감이 배제될 수 있도록 되어진 것으로 이를 첨부된 예시도면에 의거하여 상세히 설명하면 다음과 같다.Therefore, the present invention was devised to solve the above problems, so that the melody signal is output during the rewinding of the tape, so that the noise may not be sensed audibly, and at the same time, the sense of geography may be excluded. When described in detail based on the exemplary drawings as follows.

제 1 도는 본 고안에 따른 테이프 되감기시 멜로디신호 출력회로의 블럭 다이어그램으로서 테이프 끝 감지수단(1)및 테이프 시작 감지수단(2)과 연결되어 그들로부터의 감지신호를 비교 판단한 다음 그에 따른 제어신호를 송출하는 제어수단(3)과, 상기 제어수단(3)과 연결되어 테이프의 되감기시 출력단으로 멜로디신호를 송출하기 위한 멜로디 발생수단(4)으로 이루어진 것이다.1 is a block diagram of a melody signal output circuit during tape rewinding according to the present invention, which is connected to the tape end detecting means 1 and the tape start detecting means 2, and compares the detected signals therefrom, and then determines the control signals accordingly. It is composed of a control means (3) for sending out, and a melody generating means (4) connected to the control means (3) for transmitting a melody signal to an output terminal when the tape is rewound.

제 2 도는 본 고안에 따른 테이프 되감기시 멜로디신호 출력회로의 구체적인 일실시예로서 테이프 끝 감지수단(1)은 발광소자(LED1), 수광소자(Q1), 저항(R1, R2), 콘덴서(C1) 및 인버터(IC1)로 되어있고, 테이프 시작 감지수단(2)은 발광소자(LED2), 수광소자(Q2), 저항(R3, R4), 콘덴서(C2) 및 인버터(IC2)로 되어있으며, 제어수단(3)은 NAND 게이트(IC3), NOR 게이트(IC4), EX-NOR 게이트(IC5), 플립플롭(IC6) 및 AND 게이트(IC7)로 되어있고, 멜로디 발생수단(4)은 멜로디 발생 IC(IC8)로 되어있다.2 is a specific embodiment of the melody signal output circuit when rewinding the tape according to the present invention, the tape end detecting means 1 includes a light emitting device (LED 1 ), a light receiving device (Q 1 ), a resistor (R 1 , R 2 ) And a capacitor (C 1 ) and an inverter (IC 1 ), the tape start detecting means (2) includes a light emitting element (LED 2 ), a light receiving element (Q 2 ), a resistor (R 3 , R 4 ), and a capacitor (C). 2 ) and inverter (IC 2 ), the control means (3) is NAND gate (IC 3 ), NOR gate (IC 4 ), EX-NOR gate (IC 5 ), flip-flop (IC 6 ) and AND gate (IC 7 ), and the melody generating means 4 is a melody generating IC (IC 8 ).

제 3 도는 본 고안에 따른 테이프 되감기시 멜로디신호 출력회로 각부의 출력상태로서 이를 상기 각 도면에 의거하여 상세히 설명하면 다음과 같다.3 is an output state of each part of the melody signal output circuit when the tape is rewound according to the present invention.

테이프가 끝까지 돌게되면 테이프 끝 감지수단(1)내 발광소자(LED1)에서 발하는 빛이 테이프 끝의 투명부분을 통과하여 수광소자(Q1)를 턴온시키게 되고, 이에따라 다음단 인버터(IC1)의 출력(S1)이 제 3a 도에서와 같이 하이레벨로 되나 테이프 시작 감지수단(2)내 인버터(IC2)의 출력(S2)은 발광소자(LED2)에서 발하는 빛이 테이프를 투과하지 못하게 되어 로우레벨로 된다.When the tape is turned to the end, the light emitted from the light emitting device LED 1 in the tape end sensing means 1 passes through the transparent portion of the tape end to turn on the light receiving device Q1, and accordingly the next stage of the inverter IC 1 The output S 1 is at a high level as shown in FIG. 3A, but the output S 2 of the inverter IC 2 in the tape start detecting means 2 does not allow light emitted from the light emitting element LED 2 to pass through the tape. It becomes low level.

이 상태에서 테이프의 되감기가 시작되는데 테이프 끝 감지수단(1)내 인버터(IC1)의 출력(S1)이 하이레벨의 상태이고, 테이프 시작 감지수단(2)내 인버터(IC2)의 출력(S2)이 로우레벨의 상태이므로 제어수단(3)내 NAND 게이트(IC3) 및 NOR 게이트(IC4)의 출력이 모두 하이레벨로 되어 다음단 EX-NOR 게이트(IC5)의 출력을 하이레벨로 만들게되며, 이에따라 다음단 플립플롭(IC6)의 출력(Q)이 하이상태로 되면서 그 다음단 AND 게이트(IC7)의 출력(S3)을 하이레벨로 만들게 된다.In this state, the rewinding of the tape starts, and the output S 1 of the inverter IC 1 in the tape end detecting means 1 is at a high level, and the output of the inverter IC 2 in the tape start detecting means 2 is high. Since (S 2 ) is at the low level, the outputs of the NAND gate IC 3 and the NOR gate IC 4 in the control means 3 are both at the high level, and the output of the next stage EX-NOR gate IC 5 is controlled. As a result, the output Q of the next flip-flop IC 6 goes high and the output S 3 of the next AND gate IC 7 goes high.

이에따라 멜로디 발생수단(4)인 멜로디 발생 IC(IC8)가 구동되어 출력측으로 멜로디 신호를 송출하게 된다.Accordingly, the melody generating IC (IC 8 ), which is the melody generating means 4, is driven to transmit the melody signal to the output side.

테이프의 되감기가 진행되는 동안에는 테이프 끝 감지수단(1) 및 테이프 시작 감지수단(2)내 각 발광소자(LED1, LED2)에서 발하는 빛이 테이프를 투과하지 못하게 되어 각 수광소자(Q1, Q2)는 턴오프 상태로 되며, 이에 따라 각 인버터(IC1, IC2)의 출력(S1, S2)의 제 3b 도에서와 같이 모두 로우레벨로 된다.While the tape is rewinding, the light emitted from each of the light emitting elements LED 1 and LED 2 in the tape end detecting means 1 and the tape start detecting means 2 does not penetrate the tape, thereby preventing each light receiving element Q 1 ,. Q 2 ) is turned off, and accordingly, as shown in FIG. 3b of the outputs S 1 and S 2 of the respective inverters IC 1 and IC 2 , they are all low level.

이에따라 제어수단(3)내 NAND 게이트(IC3) 및 NOR 게이트(IC4)의 출력이 모두 하이레벨을 유지하면서 다음단 EX-NOR 게이트(IC5)의 출력을 하이상태로 유지시켜 그 다음단 플립플롭(IC6)의 출력(Q)이 하이레벨을 유지토록 하게되고, 이에따라 AND 게이트(IC7)의 출력(S3)로 하이레벨을 유지하게된다.Accordingly, while the outputs of the NAND gate IC 3 and the NOR gate IC 4 in the control means 3 both maintain the high level, the output of the next stage EX-NOR gate IC 5 is kept high and the next stage. The output Q of the flip-flop IC 6 is maintained at the high level, thereby maintaining the high level at the output S 3 of the AND gate IC 7 .

그러므로 멜로디 발생수단(4)인 멜로디 발생 IC(IC8)도 출력측으로 멜로디신호를 계속 송출하게 된다.Therefore, the melody generating IC (IC 8 ), which is the melody generating means 4, continues to transmit the melody signal to the output side.

그후 테이프의 되감기가 완료되면 이번에는 테이프 끝 감지수단(1)내 발광소자(LED1)에서 발하는 빛이 테이프를 투과하지 못하게되어 수광소자(Q1)가 턴오프상태를 유지하면서 제 3c 도에서와 같이 다음 단 인버터(IC1)의 출력(S1)을 로우상태로 유지시키게 되나 테이프 시작 감지수단(2)내 발광소자(LED2)에서 발하는 빛은 테이프 처음부분의 투명부를 통과하여 수광소자(Q2)를 턴온시키게 되고, 이에따라 다음단 인버터(IC2)의 출력(S2)은 하이레벨로 된다.After the rewinding of the tape is completed, the light emitted from the light emitting element LED 1 in the tape end detecting means 1 cannot pass through the tape, and thus the light receiving element Q1 remains turned off. Likewise, the output S 1 of the next stage inverter IC 1 is kept low, but the light emitted from the light emitting element LED 2 in the tape start detecting means 2 passes through the transparent portion of the first portion of the tape. Q 2 ) is turned on, and accordingly, the output S 2 of the next stage inverter IC 2 becomes a high level.

테이프 끝 감지수단(1)내 인버터(IC1)의 출력(S1)이 로우레벨이고, 테이프 시작 감지수단(2)내 인버터(IC2)의 출력(S2)은 하이레벨이므로 제어수단(3)내 NAND 게이트(IC3)의 출력은 하이상태를 유지하게 되는 반면 NOR 게이트(IC4)의 출력은 로우레벨로 된다.Since the output S 1 of the inverter IC 1 in the tape end detecting means 1 is at a low level, and the output S 2 of the inverter IC 2 in the tape start detecting means 2 is at a high level, the control means ( The output of NAND gate IC 3 in 3 ) remains high while the output of NOR gate IC 4 goes low.

이에따라 EX-NOR 게이트(IC5)의 출력이 로우레벨로 되면서 다음단 플립플롭(IC6)의 출력(Q)을 로우레벨로 만들어 그 다음단 AND 게이트(IC7)의 출력(S3)을 제 3c 도에서와 같이 로우레벨로 만들게 된다.Accordingly, the output of the EX-NOR gate (IC 5 ) goes to the low level, and the output Q of the next flip-flop (IC 6 ) is made low, and the output (S 3 ) of the next AND gate (IC 7 ) is made low. As shown in Figure 3c it will be made low.

그러므로 멜로디 발생수단(4)인 멜로디 발생 IC(IC8)의 구동이 차단될 수 있게 된다.Therefore, driving of the melody generating IC (IC 8 ), which is the melody generating means 4, can be interrupted.

이와같이 본 고안은 테이프를 되감는 동안 멜로디신호가 출력되도록 하므로써 테이프 되감기시 발생되는 소음을 청각적으로 느끼지 못하게 됨과 동시에 지리한 감이 배제될 수 있는 등의 장점이 있다.As such, the present invention has an advantage that the melody signal is output while rewinding the tape so that the noise generated during the rewinding of the tape is not audibly sensed, and at the same time, a sense of geography can be excluded.

Claims (1)

테이프끝감지수단(1)이 출력과 연결되어진 NAND게이트(IC3)와, 테이프시작감지수단(2)의 출력과 연결되어진 NOR 게이트(IC4)와, 상기 NAND 및 NOR 게이트의 출력이 각각 인가되는 EX-NOR 게이트(IC5)와, 상기 EX-NOR 게이트의 출력신호에 따라 하이 또는 로우 레벨신호를 출력하는 플립플롭(IC6)과, 상기 플립플롭의 출력(Q)에 연결되어진 AND 게이트(IC7)로 구성되어 테이프끝감지수단 및 테이프 시작 감지수단으로 부터의 감지신호를 비교판단하여 그에 따른 제어신호를 송출하는 제어수단(3)과 상기 제어수단의 AND 게이트(IC7)에 연결되어진 멜로디발생 IC(IC8)로 구성되어 테이프의 되감기시 출력단으로 멜로디 신호를 송출하는 멜로디발생수단(4)으로 이루어진것을 특징으로 하는 테이프되감기시 멜로디신호 출력회로.The NAND gate IC 3 connected to the output of the tape end sensing means 1, the NOR gate IC 4 connected to the output of the tape start sensing means 2, and the outputs of the NAND and NOR gates are respectively applied. An EX-NOR gate IC 5 , a flip-flop IC 6 outputting a high or low level signal according to the output signal of the EX-NOR gate, and an AND gate connected to the output Q of the flip-flop. (IC 7 ) is connected to the control means (3) and the AND gate (IC 7 ) of the control means for comparing and judging the detection signals from the tape end detection means and the tape start detection means, and transmits the control signal accordingly. A melody signal output circuit for rewinding a tape, comprising: a melody generating IC (IC 8 ) configured to transmit a melody signal to an output terminal when the tape is rewound.
KR2019880021615U 1988-12-27 1988-12-27 Melody signal circuit in tape rewinding KR920002285Y1 (en)

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KR2019880021615U KR920002285Y1 (en) 1988-12-27 1988-12-27 Melody signal circuit in tape rewinding

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Application Number Priority Date Filing Date Title
KR2019880021615U KR920002285Y1 (en) 1988-12-27 1988-12-27 Melody signal circuit in tape rewinding

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KR900013126U KR900013126U (en) 1990-07-05
KR920002285Y1 true KR920002285Y1 (en) 1992-04-06

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