KR960011905A - Circuit break prevention circuit during fast forward (FF) / rewind (REW) of car audio - Google Patents

Circuit break prevention circuit during fast forward (FF) / rewind (REW) of car audio Download PDF

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Publication number
KR960011905A
KR960011905A KR1019940024946A KR19940024946A KR960011905A KR 960011905 A KR960011905 A KR 960011905A KR 1019940024946 A KR1019940024946 A KR 1019940024946A KR 19940024946 A KR19940024946 A KR 19940024946A KR 960011905 A KR960011905 A KR 960011905A
Authority
KR
South Korea
Prior art keywords
tape
rew
switching unit
sound
transistor
Prior art date
Application number
KR1019940024946A
Other languages
Korean (ko)
Other versions
KR0127525B1 (en
Inventor
김현수
Original Assignee
배순훈
대우전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940024946A priority Critical patent/KR0127525B1/en
Publication of KR960011905A publication Critical patent/KR960011905A/en
Application granted granted Critical
Publication of KR0127525B1 publication Critical patent/KR0127525B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • 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
    • G11B15/026—Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer
    • 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
    • G11B15/442—Control thereof
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
    • G11B33/121—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules the apparatus comprising a single recording/reproducing device
    • G11B33/122—Arrangements for providing electrical connections, e.g. connectors, cables, switches

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

본 발명은 카 오디오 테이프의 FF/REW시 음이 새어나오는 것을 방지하기 위한 회로에 관한 것으로 테이프의 FF/REW 수행시 온되는 뮤트 스위치(SW1)와, 상기 뮤트 스위치의 온/오프에 따라 스위칭되어 라디오음의 출력을 제어하는 스위칭 트랜지스터(Q1)(Q2)로 된 제1스위칭부(40)와, 입력되는 테이프음이나 라디오음을 일정폭으로 증폭하여 스피커를 통해 출력시키는 파우어 앰프(10)를 포함하여 구성되는 회로에 있어서, 상기 뮤트 스위치(SW1)와 스위칭 트랜지스터(Q1)(Q2) 사이에 접속되어 테이프의 FF/REW 수행시 테이프 전원(B+)이 상기 제1스위칭부(1)로 인가되지 못하도록 스위칭시키는 제2스위칭부(30)와, 상기 제2스위칭부에 로우레벨을 출력시키는 마이컴(20)을 더 포함하여서 이루어진다.The present invention relates to a circuit for preventing leakage of sound during FF / REW of a car audio tape. The mute switch SW1 is turned on when the tape FF / REW is performed, and is switched according to the on / off of the mute switch. A first switching unit 40 comprising switching transistors Q1 and Q2 for controlling the output of the radio sound, and a power amplifier 10 which amplifies the tape sound or the radio sound to a certain width and outputs the same through a speaker. In the circuit comprising a, the mute switch (SW1) and the switching transistor (Q1) (Q2) is connected between the tape power supply (B +) when performing the FF / REW of the tape applied to the first switching unit (1) It further comprises a second switching unit 30 for switching so as not to be, and the microcomputer 20 for outputting a low level to the second switching unit.

Description

카오디오의 빨리감기(FF)/빨리 되감기(REW)시 음단절 현상 방지 회로Circuit break prevention circuit during fast forward (FF) / rewind (REW) of car audio

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 음단절 현상 방지 회로도.2 is a circuit break prevention circuit diagram according to the present invention.

Claims (2)

테이프의 FF/REW 수행시 온되는 뮤트 스위치(SW1)와, 상기 뮤트 스위치의 온/오프에 따라 스위칭되어 라디오음의 출력을 제어하는 스위칭 트랜지스터(Q1)(Q2)로 된 제1스위칭부(40)와, 입력되는 테이프음이나 라디오음을 일정폭으로 증폭하여 스피커를 통해 출력시키는 파우어 앰프(10)를 포함하여 구성되는 회로에 있어서, 상기 뮤트 스위치(SW1)와 스위칭 트랜지스터(Q1)(Q2)사이에 접속되어 테이프의 FF/REW 수행시 테이프 전원(B+)이상기 제1스위칭부(1)로 인가되지 못하도록 스위칭시키는 제2스위칭부(30)와, 상기 제2스위칭부에 테이프 모드시에는 하이레벨을 출력시키고 라디오 모드시에는 로우레벨을 출력시키는 마이컴(20)을 더 포함하여서 구성한 것을 특징으로 하는 카오디오의 빨리 감기/빨리 되감기시 음 단절 현상 방지 회로.The first switching unit 40 includes a mute switch SW1 which is turned on when performing FF / REW of the tape, and switching transistors Q1 and Q2 which are switched according to on / off of the mute switch to control the output of radio sound. And a power amplifier 10 which amplifies an input tape sound or a radio sound by a predetermined width and outputs the same through a speaker, wherein the mute switch SW1 and the switching transistor Q1 and Q2 are provided. A second switching unit 30 which is connected between the second switching unit 30 so as to prevent the tape power supply B + from being applied to the first switching unit 1 during the FF / REW of the tape; And a microcomputer (20) for outputting a level and outputting a low level in a radio mode. 제1항에 있어서, 상기 제2스위칭부(30)는 상기 마이컴의 제어신호에 따라 스위칭되는 트랜지스터(Q3)와, 상기 트랜지스터(Q3)의 출력단에 접속되어 상기 트랜지스터(Q3)의 출력에 따라, 스위칭되는 트랜지스터(Q4)를 포함하여 구성한 것을 특징으로 하는 카오디오의 빨리 감기/빨리 되감기시 음 단절 현상 방지 회로.The method of claim 1, wherein the second switching unit 30 is connected to an output terminal of the transistor Q3 and the output terminal of the transistor Q3 that are switched according to the control signal of the microcomputer, and according to the output of the transistor Q3. A circuit for preventing sound breaks during fast forward / fast rewind of a car audio, comprising a transistor (Q4) being switched. ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is to be disclosed based on the initial application.
KR1019940024946A 1994-09-30 1994-09-30 Device for preventing sound stopping phenomenon in car audio KR0127525B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940024946A KR0127525B1 (en) 1994-09-30 1994-09-30 Device for preventing sound stopping phenomenon in car audio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940024946A KR0127525B1 (en) 1994-09-30 1994-09-30 Device for preventing sound stopping phenomenon in car audio

Publications (2)

Publication Number Publication Date
KR960011905A true KR960011905A (en) 1996-04-20
KR0127525B1 KR0127525B1 (en) 1998-04-04

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ID=19394073

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940024946A KR0127525B1 (en) 1994-09-30 1994-09-30 Device for preventing sound stopping phenomenon in car audio

Country Status (1)

Country Link
KR (1) KR0127525B1 (en)

Also Published As

Publication number Publication date
KR0127525B1 (en) 1998-04-04

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