KR840002546A - 정보신호 변환용 회로장치 - Google Patents

정보신호 변환용 회로장치 Download PDF

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Publication number
KR840002546A
KR840002546A KR1019820005028A KR820005028A KR840002546A KR 840002546 A KR840002546 A KR 840002546A KR 1019820005028 A KR1019820005028 A KR 1019820005028A KR 820005028 A KR820005028 A KR 820005028A KR 840002546 A KR840002546 A KR 840002546A
Authority
KR
South Korea
Prior art keywords
dropout
signal
information signal
reference signal
circuit
Prior art date
Application number
KR1019820005028A
Other languages
English (en)
Other versions
KR900008413B1 (ko
Inventor
스코우하머 임민크(외 1) 코르넬리스안토니
Original Assignee
디. 제이. 싹커스
엔. 브이. 필립스 글로 아이람펜파브리켄
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 디. 제이. 싹커스, 엔. 브이. 필립스 글로 아이람펜파브리켄 filed Critical 디. 제이. 싹커스
Publication of KR840002546A publication Critical patent/KR840002546A/ko
Application granted granted Critical
Publication of KR900008413B1 publication Critical patent/KR900008413B1/ko

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • 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
    • G11B20/10037—A/D conversion, D/A conversion, sampling, slicing and digital quantisation or adjusting parameters thereof
    • 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
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/153—Arrangements in which a pulse is delivered at the instant when a predetermined characteristic of an input signal is present or at a fixed time interval after this instant

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Digital Magnetic Recording (AREA)
  • Dc Digital Transmission (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

내용 없음.

Description

정보신호 변환용 회로장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도는 본 발명에 따른 두 실시예의 회로장치를 도시한 것.
제4도는 제3도의 변형실시예를 도시한 것.
제5도는 회로장치의 신호를 도시한 것.

Claims (3)

  1. 정보신호를 받아들이기 위한 제1입력단 및 기준 신호를 받아들이기 위한 제2입력단 그리고 출력단을 가지고 서정보신호가 기준 신호치를 지나는 순간에 대응되는 끝머리를 갖는 구형파 출력신호를 출력단에 인가시키기 위한 임계치 회로와, 판독한 정보 신호에 의존하는 임계치 회로에 대하여 기준신호를 발생시키기 위한 제어 장치를 포함하여 기록반송자로 부터 판독한 정보신호를 구형파 신호로 변환시키기 위한 회로장치에 있어서, 드랍아웃 감지기는 판독한 정보신호에서 드랍아웃을 감지하며, 드랍아웃 감지기에 접속되는 스위칭 장치는 초기 드랍아웃에서 사실상 기준 신호치로 임계치 회로에 인가되는 기준 신호를 드랍아웃 동안 유지시키는 것을 특징으로 하는 회로장치.
  2. 청구범위 1항에 따른 회로장치에 있어서, 드랍아웃 감지기는 재트리거 가능한 단안정 멀티바이브레이터를 포함하여 임계치 회로의 출력단에 접속되는 것을 특징으로 하는 회로장치.
  3. 청구범위 1항에 따른 회로 장치에 있어서, 제7장치는 임계치 회로의 출력단에 접속되는 적분기를 포함하며, 스위칭 장치는 드랍아웃이 발생되는 동안 적분기의 입력을 차단시키는 것을 특징으로 하는 회로장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR8205028A 1981-11-11 1982-11-08 레코드 캐리어로부터 판독된 정보 신호를 구형 신호로 변환시키는 회로장치 KR900008413B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8105095 1981-11-11
NL8105095A NL8105095A (nl) 1981-11-11 1981-11-11 Schakeling voor het omzetten van een informatiesignaal in een rechthoekvormig signaal.

Publications (2)

Publication Number Publication Date
KR840002546A true KR840002546A (ko) 1984-07-02
KR900008413B1 KR900008413B1 (ko) 1990-11-20

Family

ID=19838350

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8205028A KR900008413B1 (ko) 1981-11-11 1982-11-08 레코드 캐리어로부터 판독된 정보 신호를 구형 신호로 변환시키는 회로장치

Country Status (13)

Country Link
US (1) US4499570A (ko)
JP (1) JPS5891514A (ko)
KR (1) KR900008413B1 (ko)
AU (1) AU552685B2 (ko)
BE (1) BE894961A (ko)
CA (1) CA1188798A (ko)
CH (1) CH659926A5 (ko)
DE (1) DE3240853C2 (ko)
ES (1) ES8308187A1 (ko)
FR (1) FR2516323B1 (ko)
GB (1) GB2109187B (ko)
NL (1) NL8105095A (ko)
SE (1) SE452936B (ko)

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JPS58205911A (ja) * 1982-05-26 1983-12-01 Hitachi Ltd デ−タスライス回路
JPS5914108A (ja) * 1982-07-13 1984-01-25 Sanyo Electric Co Ltd 基準レベル設定回路
JPS6087469A (ja) * 1983-10-19 1985-05-17 Hitachi Ltd ドロップアウト補償装置
JP2534988B2 (ja) * 1986-04-30 1996-09-18 株式会社リコー 情報信号再生方法
JPS6329362A (ja) * 1986-07-22 1988-02-08 Hitachi Ltd 映像信号再生装置の時間軸変動補正回路
US4680651A (en) * 1986-08-19 1987-07-14 Eastman Kodak Company Timing signal dropout compensation circuit
DE3633768A1 (de) * 1986-10-03 1988-04-14 Endress Hauser Gmbh Co Verfahren und anordnung zur erzeugung eines mittelwertfreien binaeren signals
JPH083945B2 (ja) * 1987-01-17 1996-01-17 日本ビクター株式会社 高速エラー検査システム用の波形変換回路
JP2619381B2 (ja) * 1987-03-20 1997-06-11 株式会社日立製作所 光学的情報再生装置
JPS63305686A (ja) * 1987-06-08 1988-12-13 Sony Corp ドロップアウト検出回路
JPH03219426A (ja) * 1988-12-26 1991-09-26 Canon Inc 光学的情報記録媒体及び光学的情報記録再生装置及び方法
JPH04212723A (ja) * 1990-07-31 1992-08-04 Toshiba Corp 情報記録再生装置
BE1007029A3 (nl) * 1993-04-22 1995-02-21 Koninkl Philips Electronics Nv Werkwijze voor het afleiden van een kwaliteitssignaal uit een uitgelezen signaal, alsmede een optekeninrichting en een uitleesinrichting waarin een dergelijke werkwijze wordt toegepast.
US5790495A (en) * 1994-05-06 1998-08-04 Discovision Associates Data generator assembly for retrieving stored data by comparing threshold signal with preprocessed signal having DC component
US5894468A (en) * 1994-05-06 1999-04-13 Discovision Associates Data recovery with differentiation and partial integration stages to eliminate noises and DC offset level
DE19756664C2 (de) * 1997-12-19 1999-11-25 Mtu Muenchen Gmbh Verfahren und elektrische Schaltung zur Totzeitregelung bei variierenden Impulsfolgefrequenzen
GB0029121D0 (en) * 2000-11-29 2001-01-10 Lsi Logic Europ Ltd Apparatus and method providing a mirror averaging function to generate a mirror signal from optical data on an optical disc

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3483542A (en) * 1962-09-13 1969-12-09 Litton Business Systems Inc Variable threshold playback amplifier
FR1602249A (ko) * 1968-12-20 1970-10-26
US3761905A (en) * 1971-08-20 1973-09-25 Information Storage Systems Disc pack defect detection system
US3772604A (en) * 1972-05-12 1973-11-13 Coulter Electronics Non-rectifying clamps
US3990108A (en) * 1972-08-02 1976-11-02 Matsushita Electric Industrial Co., Ltd. Magnetic tape speed control system
DE2451800C3 (de) * 1973-11-09 1978-12-14 N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) Spitzendetektion mit konstantem Teiloffset-Betrieb
US3947873A (en) * 1974-09-19 1976-03-30 Basf Aktiengesellschaft Method and circuit for detecting and compensating for drop-out and distortion of frequency modulated video signals
FR2358797A1 (fr) * 1976-07-16 1978-02-10 Thomson Brandt Systeme de correction automatique du facteur de forme de l'onde porteuse issue de la lecture d'un support d'information
US4119918A (en) * 1977-05-02 1978-10-10 Helm Instrument Company Auto zero circuit
JPS5757025A (en) * 1980-09-24 1982-04-06 Sony Corp Waveform converting circuit
JPS57176520A (en) * 1981-04-20 1982-10-29 Akai Electric Co Ltd Pcm reproducer

Also Published As

Publication number Publication date
FR2516323A1 (fr) 1983-05-13
SE8206312L (sv) 1983-05-12
JPH0516103B2 (ko) 1993-03-03
SE8206312D0 (sv) 1982-11-08
JPS5891514A (ja) 1983-05-31
CH659926A5 (de) 1987-02-27
US4499570A (en) 1985-02-12
GB2109187B (en) 1985-03-13
SE452936B (sv) 1987-12-21
AU9027782A (en) 1983-05-19
NL8105095A (nl) 1983-06-01
KR900008413B1 (ko) 1990-11-20
AU552685B2 (en) 1986-06-12
ES517188A0 (es) 1983-08-01
DE3240853C2 (de) 1994-04-28
DE3240853A1 (de) 1983-05-19
FR2516323B1 (fr) 1985-07-12
BE894961A (fr) 1983-05-09
ES8308187A1 (es) 1983-08-01
GB2109187A (en) 1983-05-25
CA1188798A (en) 1985-06-11

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