KR880008274A - Tape Speed Control Circuit for High-Speed Retrieval of Digital Audio Tape Recorder - Google Patents

Tape Speed Control Circuit for High-Speed Retrieval of Digital Audio Tape Recorder Download PDF

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Publication number
KR880008274A
KR880008274A KR860010812A KR860010812A KR880008274A KR 880008274 A KR880008274 A KR 880008274A KR 860010812 A KR860010812 A KR 860010812A KR 860010812 A KR860010812 A KR 860010812A KR 880008274 A KR880008274 A KR 880008274A
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KR
South Korea
Prior art keywords
speed
tape
control circuit
digital
digital audio
Prior art date
Application number
KR860010812A
Other languages
Korean (ko)
Inventor
노일영
Original Assignee
한형수
삼성전자 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 한형수, 삼성전자 주식회사 filed Critical 한형수
Priority to KR860010812A priority Critical patent/KR880008274A/en
Publication of KR880008274A publication Critical patent/KR880008274A/en

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Abstract

내용 없음.No content.

Description

디지탈 오디오 테이프 레코더의 고속 검색시 테이프 속도 제어회로Tape Speed Control Circuit for High-Speed Retrieval of Digital Audio Tape Recorder

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 회로도,1 is a circuit diagram of the present invention,

제2도는 제1도에 따른 타이밍챠트이다.2 is a timing chart according to FIG.

Claims (1)

고속 검색시 오디오 헤드 드럼에서 발생되는 복수 개의 재생엔벨로프를 검출하는 엔벨로프 검출기(1)에 구형파를 발생시키는 슈미트리거회로(2)가 연결되고, 상기 슈미트트리거회로(2)에는 n비트용 카운터(3)와 n비트 데이터 레지스터(4)로 구성되어 일정한 갯수의 구형펄스를 재생하는 디지탈 서어보계(5)가 연결되며, 상기 디지탈 서어보계(5)에는 100배 및 200배의 배속에 대응하는 속도 기준 신호발생을 제어하면서 테이프의 속도차에 대응시키는 값을 랫치시키는 것을 제어하는 제어회로(6)와 펄스폭 변조회로(7)가 각각 연결되고, 상기 펄스폭 변조회로(7)에는 차례로 저역통과 여파기(8)와 트랜지스터(TR1)를 거쳐 카셋트 테이프의 공급 리일이나 감이리일에 설치도는 리일모우터(M)가 연결된 것을 특징으로 하는 디지탈 오디오 테이프 레코더의 고속 검색시 테이프 고속 제어회로.A Schmitt trigger circuit 2 for generating a square wave is connected to an envelope detector 1 for detecting a plurality of reproduction envelopes generated from an audio head drum during a high-speed search, and an n-bit counter 3 is connected to the Schmitt trigger circuit 2. ) And an n-bit data register (4) are connected to a digital servometer (5) for reproducing a certain number of spherical pulses, and the digital servometer (5) has a speed reference corresponding to a double speed of 100 times and 200 times. A control circuit 6 and a pulse width modulation circuit 7 for controlling the latching of a value corresponding to the speed difference of the tape while controlling signal generation are respectively connected, and the pulse width modulation circuit 7 in turn has a low pass filter. High speed retrieval of a digital audio tape recorder, characterized in that via a transistor (TR) 1 and a real motor (M) connected to the supply or transfer rail of the cassette tape are connected. Tape high speed control circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR860010812A 1986-12-17 1986-12-17 Tape Speed Control Circuit for High-Speed Retrieval of Digital Audio Tape Recorder KR880008274A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR860010812A KR880008274A (en) 1986-12-17 1986-12-17 Tape Speed Control Circuit for High-Speed Retrieval of Digital Audio Tape Recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR860010812A KR880008274A (en) 1986-12-17 1986-12-17 Tape Speed Control Circuit for High-Speed Retrieval of Digital Audio Tape Recorder

Publications (1)

Publication Number Publication Date
KR880008274A true KR880008274A (en) 1988-08-30

Family

ID=68469840

Family Applications (1)

Application Number Title Priority Date Filing Date
KR860010812A KR880008274A (en) 1986-12-17 1986-12-17 Tape Speed Control Circuit for High-Speed Retrieval of Digital Audio Tape Recorder

Country Status (1)

Country Link
KR (1) KR880008274A (en)

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