DE3272034D1 - Digital player for reproducing a digital signal sequence - Google Patents

Digital player for reproducing a digital signal sequence

Info

Publication number
DE3272034D1
DE3272034D1 DE8282109467T DE3272034T DE3272034D1 DE 3272034 D1 DE3272034 D1 DE 3272034D1 DE 8282109467 T DE8282109467 T DE 8282109467T DE 3272034 T DE3272034 T DE 3272034T DE 3272034 D1 DE3272034 D1 DE 3272034D1
Authority
DE
Germany
Prior art keywords
digital
reproducing
signal sequence
player
digital signal
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE8282109467T
Other languages
English (en)
Inventor
Hiromichi Tanaka
Hiroyuki Kimura
Tsutomu Noda
Takao Arai
Masaharu Kobayashi
Shigeki Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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
Priority claimed from JP16283481A external-priority patent/JPS5863856A/ja
Priority claimed from JP2601082A external-priority patent/JPS58143626A/ja
Priority claimed from JP8792982A external-priority patent/JPS58205911A/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE3272034D1 publication Critical patent/DE3272034D1/de
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/28—Speed controlling, regulating, or indicating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/02—Measuring characteristics of individual pulses, e.g. deviation from pulse flatness, rise time or duration
    • G01R29/027—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values
    • G01R29/0273—Indicating that a pulse characteristic is either above or below a predetermined value or within or beyond a predetermined range of values the pulse characteristic being duration, i.e. width (indicating that frequency of pulses is above or below a certain limit)
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/912—Pulse or frequency counter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S388/00—Electricity: motor control systems
    • Y10S388/907—Specific control circuit element or device
    • Y10S388/916—Threshold circuit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Rotational Drive Of Disk (AREA)
DE8282109467T 1981-10-14 1982-10-13 Digital player for reproducing a digital signal sequence Expired DE3272034D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP16283481A JPS5863856A (ja) 1981-10-14 1981-10-14 パルス巾検出回路
JP2601082A JPS58143626A (ja) 1982-02-22 1982-02-22 デ−タ判別回路
JP8792982A JPS58205911A (ja) 1982-05-26 1982-05-26 デ−タスライス回路

Publications (1)

Publication Number Publication Date
DE3272034D1 true DE3272034D1 (en) 1986-08-21

Family

ID=27285234

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282109467T Expired DE3272034D1 (en) 1981-10-14 1982-10-13 Digital player for reproducing a digital signal sequence

Country Status (3)

Country Link
US (1) US4562549A (de)
EP (1) EP0077075B1 (de)
DE (1) DE3272034D1 (de)

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NL8303563A (nl) * 1983-10-17 1985-05-17 Philips Nv Inrichting voor het weergeven van digitale informatie via een overdrachtsmedium.
US4882721A (en) * 1984-02-08 1989-11-21 Laser Magnetic Storage International Company Offset for protection against amorphous pips
EP0300581A3 (en) * 1984-02-08 1989-04-12 Laser Magnetic Storage International Company Amorphous pip protection apparatus for use in an optical recording apparatus
JPS60187934A (ja) * 1984-03-07 1985-09-25 Toshiba Corp 光学的記録媒体の再生方式
EP0202773B1 (de) * 1985-04-22 1991-01-16 Csk Corporation Binäres Kodierverfahren für Daten, welche von einer optischen Platte gelesen werden und Gerät dafür
JPS61273776A (ja) * 1985-05-29 1986-12-04 Nippon Kogaku Kk <Nikon> 再生サ−ボ装置
US4680479A (en) * 1985-07-29 1987-07-14 New England Digital Corporation Method of and apparatus for providing pulse trains whose frequency is variable in small increments and whose period, at each frequency, is substantially constant from pulse to pulse
US4809248A (en) * 1986-03-05 1989-02-28 Mitsubishi Denki Kabushiki Kaisha Memory device including a rotating disk and means for detecting change in frictional resistance between the disk and a read/record head
DE3766902D1 (de) * 1986-07-10 1991-02-07 Studer Willi Ag Verfahren und vorrichtung zur verarbeitung von impulsen eines signals, das durch vorausgehende uebertragung verzerrt ist.
JP2650354B2 (ja) * 1988-09-08 1997-09-03 ヤマハ株式会社 Ｅｆｍ信号用波形整形回路
JPH02159989A (ja) * 1988-12-09 1990-06-20 Sharp Corp タイミング信号発生回路
JPH0652181B2 (ja) * 1989-08-11 1994-07-06 株式会社富士製作所 異常診断装置
US5081409A (en) * 1989-11-13 1992-01-14 Performance Controls, Inc. Pulse-width modulated circuit for driving a load
US5070292A (en) * 1989-11-13 1991-12-03 Performance Controls, Inc. Pulse-width modulated circuit for driving a load
US5241251A (en) * 1990-05-21 1993-08-31 Asahi Kogaku Kogyo Kabushiki Kaisha Drive signal generating device
FR2662808B1 (fr) * 1990-05-30 1992-08-21 France Etat Procede d'analyse automatique de signaux par segmentation et classification.
US5222028A (en) * 1990-10-12 1993-06-22 Westinghouse Electric Corp. Pulse analysis system and method
JP2550772B2 (ja) * 1990-10-26 1996-11-06 日本ビクター株式会社 光学的情報記録媒体円盤の再生装置
US5623376A (en) * 1991-04-03 1997-04-22 Canon Kabushiki Kaisha Digital information restoring device including period detector
JPH0528063A (ja) * 1991-07-24 1993-02-05 Nec Corp マイクロコンピユータ
GB2271232B (en) * 1992-10-03 1997-05-07 Motorola Inc Pulse generation/sensing arrangement for use in a microprocessor system
JP3333248B2 (ja) * 1992-11-10 2002-10-15 株式会社東芝 デューティ検出回路
KR950006841B1 (ko) * 1992-11-27 1995-06-23 삼성전자주식회사 디스크 구동장치의 데이타 검출레벨 조정회로
FR2707814B1 (fr) * 1993-07-02 1995-09-01 Commissariat Energie Atomique Dispositif de mesure de la durée d'un intervalle de temps.
JP2885650B2 (ja) * 1993-11-11 1999-04-26 株式会社東芝 ディスク再生装置
US5835676A (en) * 1994-04-06 1998-11-10 Brother Kogyo Kabushiki Kaisha Motor driving apparatus
US5554948A (en) * 1994-05-31 1996-09-10 Delco Electronics Corporation Adaptive threshold circuit with deceleration compensation
US5475312A (en) * 1994-06-07 1995-12-12 Iris Power Engineering Inc. Method and device for distinguishing between partial discharge and electrical noise
JP3468592B2 (ja) * 1994-08-10 2003-11-17 富士通株式会社 クロック信号発生回路
US5805460A (en) * 1994-10-21 1998-09-08 Alliedsignal Inc. Method for measuring RF pulse rise time, fall time and pulse width
US5563980A (en) * 1994-12-14 1996-10-08 Industrial Technology Research Institute Brushless DC motor speed controller
KR100282936B1 (ko) * 1994-12-24 2001-03-02 윤종용 디스크 구동장치에 있어서 신호처리를 위한 데이타 검출레벨 조정회로
US5581204A (en) * 1995-06-02 1996-12-03 International Business Machines Corporation Pulse width measurement circuit
WO1997038321A1 (en) * 1996-04-10 1997-10-16 Lecroy Corporation Optical recording measurement package
EP1152248B1 (de) * 1996-04-10 2003-07-23 Lecroy Corporation Messverfahren für optische Aufzeichnungsverfahren
KR0182501B1 (ko) * 1996-06-12 1999-04-15 김광호 하드디스크드라이버의 채널특성 파라메타 측정장치
JP3199027B2 (ja) * 1998-05-11 2001-08-13 日本電気株式会社 デューティ測定回路、データ識別システム、データ信号再生システム、デューティ測定方法、データ識別方法、及びデータ信号再生方法
US6353354B1 (en) 1999-09-28 2002-03-05 Mts Systems Corporation Pulse-width modulated bridge circuit within a second bridge circuit
TWI444628B (zh) * 2012-03-23 2014-07-11 Univ Nat Chiao Tung 數位讀出模組、數位感測裝置
US10693684B1 (en) * 2019-03-14 2020-06-23 Rohde & Schwarz Gmbh & Co. Kg Symbol rate determination method and measurement instrument

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US3568071A (en) * 1968-10-21 1971-03-02 Singer Co Digital filter
BE755662A (fr) * 1969-09-17 1971-02-15 Burroughs Corp Procede et appareil d'enregistrement et de detection magnetiques par modulation de frequence
US3720927A (en) * 1971-01-25 1973-03-13 Redactron Corp Speed insensitive reading and writing apparatus for digital information
US3736582A (en) * 1972-03-20 1973-05-29 Leach Corp Galloping base line compensating circuit
US3940556A (en) * 1972-08-29 1976-02-24 Rca Corporation Timing error detecting and speed control system
US3969613A (en) * 1975-02-03 1976-07-13 International Business Machines Corporation Two frequency coded data interpreting method and apparatus
US3980960A (en) * 1975-10-09 1976-09-14 Computer Identics Corporation Signal width and width ratio determining apparatus
US4321632A (en) * 1979-06-01 1982-03-23 Digital Equipment Corporation Positioning system and formatting scheme for magnetic tape media
JPS567259A (en) * 1979-06-26 1981-01-24 Olympus Optical Co Ltd Speed switching circuit
CA1165825A (en) * 1979-10-26 1984-04-17 Masato Tanaka Data extracting circuit
JPS577627A (en) * 1980-06-17 1982-01-14 Sony Corp Waveform shaping circuit for code signal
DE3140432C2 (de) * 1980-10-13 1985-10-10 Hitachi, Ltd., Tokio/Tokyo Drehzahlregelschaltung
US4481615A (en) * 1981-02-02 1984-11-06 Sanyo Electric Co., Ltd. Motor controlling circuit of reproducing apparatus and method of controlling

Also Published As

Publication number Publication date
EP0077075B1 (de) 1986-07-16
US4562549A (en) 1985-12-31
EP0077075A1 (de) 1983-04-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee