KR890017666A - Drum-free automatic phase control circuit for playback-only digital audio tape recorders - Google Patents

Drum-free automatic phase control circuit for playback-only digital audio tape recorders Download PDF

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Publication number
KR890017666A
KR890017666A KR1019880005793A KR880005793A KR890017666A KR 890017666 A KR890017666 A KR 890017666A KR 1019880005793 A KR1019880005793 A KR 1019880005793A KR 880005793 A KR880005793 A KR 880005793A KR 890017666 A KR890017666 A KR 890017666A
Authority
KR
South Korea
Prior art keywords
signal
high frequency
output
frequency window
drum
Prior art date
Application number
KR1019880005793A
Other languages
Korean (ko)
Other versions
KR930001704B1 (en
Inventor
최경선
Original Assignee
안시환
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 안시환, 삼성전자 주식회사 filed Critical 안시환
Priority to KR1019880005793A priority Critical patent/KR930001704B1/en
Priority to DE3916157A priority patent/DE3916157A1/en
Publication of KR890017666A publication Critical patent/KR890017666A/en
Application granted granted Critical
Publication of KR930001704B1 publication Critical patent/KR930001704B1/en

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Classifications

    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/56—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head support for the purpose of adjusting the position of the head relative to the record carrier, e.g. manual adjustment for azimuth correction or track centering
    • 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
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
    • G11B15/473—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads
    • G11B15/4731—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads control of headwheel rotation

Landscapes

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

Abstract

내용 없음No content

Description

재생 전용 디지탈 오디오 테이프 레코더의 드럼 무조정 자동 위상 제어회로Drum-free automatic phase control circuit for playback-only digital audio tape recorders

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

제 2 도는 본 발명에 따른 회로다, 제 3 도는 디지탈 오디오 테이프의 포맷, 제 4 도는 본 발명에 따른 제 2 도에 있어서의 각부 동작 파형도.2 is a circuit according to the present invention, FIG. 3 is a format of a digital audio tape, and FIG. 4 is an operation waveform diagram of each part in FIG. 2 according to the present invention.

Claims (1)

재생 전용 디지탈 오디오 테이프 레코더에 있어서, 소정의 위상 펄스발생기 출력신호를 입력하여 고주파 윈도우신호를 발생하는 고주파 윈도우신호 발생부(10)와, 상기 고주파 윈도우 신호를 반전하는 반전기(20)와, 콘덴서(30a) 및 다이오우드(30b)로 구성되어 상기 반전기에 접속된 고주파 윈도우신호 상승에지 검출부(30)와, 헤드와 접속되며 고주파 신호를 증폭 출력하는 고주파 증폭기(40)와, 소정 주파수 대역의 신호를 검출하는 밴드 패스필터(50)와, 필터링된 신호를 증폭하는 중폭기(60)와, 소정의 인에이블 신호 입력을 받아 상기 중폭된 신호를 카운팅하며 상기 고주파 윈도우신호 상승에지에서 리세트되는 카운터(70)와, 상기 카운터 출력을 입력하여 소정의 기준신호와 비교하는 비교부(80)와, 상기 반전기(20) 출력의 제어를 받으며 상기 비교부(80)출력을 입력하여 데이타 유효신호를 발생하며 상기 데이타 유효신호가 디지탈 시그날링 플로세서로 입력됨과 동시에 상기 카운터(70)의 인에이블 단자에 입력되도록 동작하는 데이타 유효신호 발생부(90)로 구성됨을 특징으로 하는 드럼 무조정 자동 위상 제어회로.A digital audio tape recorder for reproduction only, comprising: a high frequency window signal generator (10) for inputting a predetermined phase pulse generator output signal to generate a high frequency window signal, an inverter (20) for inverting the high frequency window signal, and a condenser And a high frequency window signal rising edge detector 30 connected to the inverter, a high frequency amplifier 40 connected to the head to amplify and output a high frequency signal, and a signal of a predetermined frequency band. A band pass filter 50 for detecting, an amplifier 60 for amplifying the filtered signal, a counter which receives a predetermined enable signal input and counts the amplified signal and is reset at the high frequency window signal rising edge ( 70), a comparator 80 for inputting the counter output and comparing it with a predetermined reference signal, and an output of the comparator 80 under control of the output of the inverter 20 To generate a data valid signal and to input the data valid signal to the digital signaling processor and to be input to the enable terminal of the counter 70. Drum unregulated automatic phase control circuit. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880005793A 1988-05-18 1988-05-18 Automatic phase regulating circuit for dat drum KR930001704B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019880005793A KR930001704B1 (en) 1988-05-18 1988-05-18 Automatic phase regulating circuit for dat drum
DE3916157A DE3916157A1 (en) 1988-05-18 1989-05-18 Automatic control circuit for the drum phase of a digitial audio tape apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880005793A KR930001704B1 (en) 1988-05-18 1988-05-18 Automatic phase regulating circuit for dat drum

Publications (2)

Publication Number Publication Date
KR890017666A true KR890017666A (en) 1989-12-16
KR930001704B1 KR930001704B1 (en) 1993-03-11

Family

ID=19274468

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880005793A KR930001704B1 (en) 1988-05-18 1988-05-18 Automatic phase regulating circuit for dat drum

Country Status (2)

Country Link
KR (1) KR930001704B1 (en)
DE (1) DE3916157A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206485A (en) * 1977-07-08 1980-06-03 Sony Corporation Digital phase servo system
JPS54114691A (en) * 1978-02-27 1979-09-06 Sony Corp Servo circuit
AU538020B2 (en) * 1979-02-26 1984-07-26 Sony Corporation V.t.r. servo control circuit
JPH06150240A (en) * 1992-11-11 1994-05-31 Matsushita Electric Ind Co Ltd Magnetic head and production thereof

Also Published As

Publication number Publication date
DE3916157A1 (en) 1989-11-30
KR930001704B1 (en) 1993-03-11

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