KR910003581A - Synchronous False Detection Protection Circuit of Digital Audio Tape Recorder - Google Patents

Synchronous False Detection Protection Circuit of Digital Audio Tape Recorder Download PDF

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Publication number
KR910003581A
KR910003581A KR1019890010293A KR890010293A KR910003581A KR 910003581 A KR910003581 A KR 910003581A KR 1019890010293 A KR1019890010293 A KR 1019890010293A KR 890010293 A KR890010293 A KR 890010293A KR 910003581 A KR910003581 A KR 910003581A
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KR
South Korea
Prior art keywords
signal
atf
synchronization
pilot
selection
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Application number
KR1019890010293A
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Korean (ko)
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KR920002580B1 (en
Inventor
안홍조
Original Assignee
강진구
삼성전자 주식회사
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Priority to KR1019890010293A priority Critical patent/KR920002580B1/en
Publication of KR910003581A publication Critical patent/KR910003581A/en
Application granted granted Critical
Publication of KR920002580B1 publication Critical patent/KR920002580B1/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
    • G11B5/58—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—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 for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes

Landscapes

  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

내용 없음.No content.

Description

디지털 오디오 테이프 레코더의 동기 오검출 보호회로Synchronous False Detection Protection Circuit of Digital Audio Tape Recorder

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

제1도는 ATF트랙 패턴의 구조도,1 is a structural diagram of the ATF track pattern,

제2도는 본 발명의 회로도,2 is a circuit diagram of the present invention,

제3도는 제2도중 ATF범위 프로텍터(80)의 파형도.3 is a waveform diagram of the ATF range protector 80 of FIG.

Claims (5)

디지털 오디오 테이프 레코더에서 트랙킹 서어보를 하는 회로에 있어서, 각 트랙의 제1,2ATF범위를 구분하여 발생된 ATF선택회로(1)에 의해 스위칭 헤드펄스(SWH)를 조합하여 ATF페어신호(2)를 발생하는 ATF페어 발생수단과, 상기 ATF페어신호(2)를 받아 프로텍트 온에 따라 파일럿 범위가 동기범위보다 선행하는 ATF제어신호(2)를 찾는 ATF페어 탐색부(30)와, 외부로 부터 들어오는 RF신호(3)를 분리 필터링하여 각각 파일럿신호(4) 및 동기신호(5)를 발생하는 신호발생수단과, 상기 ATF페어탐색부(30)로 부터 출력하는 신호에 따라 파일럿신호(4)와 동기신호(5) 선택을 제어하는 파일럿 선택제어신호(6) 및 동기 선택 제어 신호(7)를 발생하여 상기 파일럿신호(4) 및 동기신호(5)를 선택하는 신호선택수단과, 프로텍트온에 따라 상기 신호선택수단으로부터 출력되는 파일럿신호(4) 및 동기신호(5)를 카운트하고 디코딩하여 검출된 데이터(8)를 클럭 및 리셋트신호에 의해 래치하는 데이터 래치수단으로 구성함을 특징으로 하는 디지털 오디오 테이프 레코오더의 동기 오검출 보호회로.In a circuit for tracking servo in a digital audio tape recorder, an ATF pair signal (2) is generated by combining switching head pulses (SWH) by an ATF selection circuit (1) generated by dividing the first and second ATF ranges of each track. An ATF pair search unit 30 which receives the ATF pair generating means, the ATF pair signal 2 that finds the ATF control signal 2 whose pilot range precedes the synchronization range according to the protection on, and receives from the outside Signal generation means for separating and filtering the RF signal 3 to generate the pilot signal 4 and the synchronization signal 5, respectively, and the pilot signal 4 and the signal according to the signal output from the ATF pair search unit 30. Signal selection means for generating a pilot selection control signal 6 for controlling the selection of the synchronization signal 5 and a synchronization selection control signal 7 for selecting the pilot signal 4 and the synchronization signal 5; According to the signal selecting means Synchronous false detection of a digital audio tape recorder comprising a data latch means for counting and decoding the call 4 and the synchronization signal 5 and latching the detected data 8 by a clock and reset signal. Protection circuit. 제1항에 있어서, ATF페어탐색부(30)가 프로텍트 온시 ATF범위에서 파일럿이 동기에 선행하는 ATF페어를 찾아냄을 특징으로 하는 디지털 오디오 테이프 레코더의 동기 오검출 보호회로.2. The synchronous false detection protection circuit according to claim 1, wherein the ATF pair search unit (30) finds an ATF pair in which the pilot precedes synchronization in the ATF range at the protection on. 제2항에 있어서, 신호선택수단이 ATF페어탐색부(30)로 부터 출력하는 신호에 따라 파일럿신호(4) 및 동기신호(5) 선택을 제어하는 파일럿 선택제어신호(6) 및 동기선택제어신호(7)를 발생하는 신호선택제어부(60)와, 상기 파일럿 선택제어신호(6) 및 동기선택제어신호(7)에 따라 상기 파일럿신호(4) 및 동기신호(5)를 선택하는 먹스(70)로 구성함을 특징으로 하는 디지털 오디오 테이프 레코더의 동기 오검출 보호회로.3. The pilot selection control signal (6) and the synchronization selection control according to claim 2, wherein the signal selection means controls the selection of the pilot signal (4) and the synchronization signal (5) in accordance with a signal output from the ATF pair search unit (30). A signal selection controller 60 for generating a signal 7 and a mux for selecting the pilot signal 4 and the synchronization signal 5 according to the pilot selection control signal 6 and the synchronization selection control signal 7. 70. A synchronous false detection protection circuit of a digital audio tape recorder, characterized in that it is configured. 제3항에 있어서, 데이터 래치수단이 신호선택수단으로 부터 인가되는 파일럿신호(4) 및 동기신호(5)를 카운트하고 디코딩하여 검출데이터(8)를 발생하는 카운터 및 디코더(90)와, 상기 검출데이터(8)를 신호 선택수단으로 래치하기 위해 클럭 및 리셋트신호를 발생하는 클럭 및 리셋트신호 발생부(100)로 구성함을 특징으로 하는 디지털 오디오 테이프 레코더의 동기 오검출 보호회로.A counter and decoder (90) according to claim 3, wherein the data latch means counts and decodes the pilot signal (4) and the synchronization signal (5) applied from the signal selection means to generate detection data (8), and And a clock and reset signal generator (100) for generating a clock and reset signal for latching the detection data (8) by signal selection means. 제4항에 있어서, 데이터 래치수단이 프로텍트 온에 따라 신호선택수단으로부터 인가되는 ATF범위만을 게이팅하는 ATF범위 프로텍터(80)를 더 구비함을 특징으로 하는 디지털 오디오 테이프 레코더의 동기 오검출 보호회로.5. The synchronous false detection protection circuit of a digital audio tape recorder according to claim 4, wherein the data latching means further comprises an ATF range protector (80) for gating only the ATF range applied from the signal selection means in accordance with the protection on. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890010293A 1989-07-20 1989-07-20 Synchronizing error detecting circuit for dat KR920002580B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019890010293A KR920002580B1 (en) 1989-07-20 1989-07-20 Synchronizing error detecting circuit for dat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019890010293A KR920002580B1 (en) 1989-07-20 1989-07-20 Synchronizing error detecting circuit for dat

Publications (2)

Publication Number Publication Date
KR910003581A true KR910003581A (en) 1991-02-27
KR920002580B1 KR920002580B1 (en) 1992-03-30

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KR1019890010293A KR920002580B1 (en) 1989-07-20 1989-07-20 Synchronizing error detecting circuit for dat

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KR920002580B1 (en) 1992-03-30

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