HK120894A - Control circuit - Google Patents

Control circuit

Info

Publication number
HK120894A
HK120894A HK120894A HK120894A HK120894A HK 120894 A HK120894 A HK 120894A HK 120894 A HK120894 A HK 120894A HK 120894 A HK120894 A HK 120894A HK 120894 A HK120894 A HK 120894A
Authority
HK
Hong Kong
Prior art keywords
disc
signal
delta
factor
pickup device
Prior art date
Application number
HK120894A
Other languages
English (en)
Inventor
Franz Bigge
Original Assignee
Thomson Brandt Gmbh
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 Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of HK120894A publication Critical patent/HK120894A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
    • 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
    • G11B19/24—Arrangements for providing constant relative speed between record carrier and head
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
    • H03D13/003—Circuits for comparing the phase or frequency of two mutually-independent oscillations in which both oscillations are converted by logic means into pulses which are applied to filtering or integrating means
    • H03D13/004—Circuits for comparing the phase or frequency of two mutually-independent oscillations in which both oscillations are converted by logic means into pulses which are applied to filtering or integrating means the logic means delivering pulses at more than one terminal, e.g. up and down pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)
  • Feedback Control In General (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Selective Calling Equipment (AREA)
  • Rotational Drive Of Disk (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Massaging Devices (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Electrotherapy Devices (AREA)
  • Control Of Velocity Or Acceleration (AREA)
HK120894A 1989-04-19 1994-11-03 Control circuit HK120894A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3912837A DE3912837A1 (de) 1989-04-19 1989-04-19 Regelschaltung
PCT/EP1990/000560 WO1990013172A1 (de) 1989-04-19 1990-04-10 Regelschaltung
SG121594A SG121594G (en) 1989-04-19 1994-08-23 Control circuit
SG138894A SG138894G (en) 1989-04-19 1994-09-30 Process for the production of dinitrotoluene using an inorganic salt as a phase separation agent

Publications (1)

Publication Number Publication Date
HK120894A true HK120894A (en) 1994-11-11

Family

ID=40386227

Family Applications (1)

Application Number Title Priority Date Filing Date
HK120894A HK120894A (en) 1989-04-19 1994-11-03 Control circuit

Country Status (15)

Country Link
US (1) US5298812A (xx)
EP (1) EP0468989B1 (xx)
JP (1) JP2877949B2 (xx)
KR (1) KR0151596B1 (xx)
CN (1) CN1019339B (xx)
AT (1) ATE91203T1 (xx)
AU (1) AU5402390A (xx)
DD (1) DD293906A5 (xx)
DE (2) DE3912837A1 (xx)
DK (1) DK0468989T3 (xx)
ES (1) ES2043368T3 (xx)
HK (1) HK120894A (xx)
SG (2) SG121594G (xx)
TR (1) TR25489A (xx)
WO (1) WO1990013172A1 (xx)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07176141A (ja) * 1993-12-15 1995-07-14 Nippon Columbia Co Ltd 光ディスク及び光ディスク記録装置
KR100329151B1 (ko) * 1995-04-27 2002-11-29 삼성전자 주식회사 디스크구동기록장치의스핀들모터구동제어회로
JP3637437B2 (ja) * 1998-11-19 2005-04-13 パイオニア株式会社 光学式記録媒体のドライブ装置
JP4480278B2 (ja) * 1999-01-25 2010-06-16 パナソニック株式会社 ディスク装置
TW544669B (en) * 2000-11-30 2003-08-01 Via Tech Inc Searching method and device for position of optical pick-up head
US20080007983A1 (en) * 2006-06-28 2008-01-10 Honeywell International, Inc. Frequency-to-voltage converter with analog multiplication
US8698414B2 (en) * 2009-04-13 2014-04-15 Microchip Technology Incorporated High resolution pulse width modulation (PWM) frequency control using a tunable oscillator
KR101004790B1 (ko) * 2009-07-13 2011-01-04 엘아이지넥스원 주식회사 신호 컨버팅 장치
FR2963510B1 (fr) * 2010-08-02 2012-10-05 Alstom Transport Sa Chaine de traction pour un vehicule de transport, notamment ferroviaire, et procede de commande d'une telle chaine
CN103813602B (zh) * 2014-02-24 2016-01-27 福州大学 无电极荧光灯调光方法
CN104360642B (zh) * 2014-11-17 2018-04-27 大族激光科技产业集团股份有限公司 一种激光切割机数控系统
CN109361379A (zh) * 2018-09-18 2019-02-19 天津大学 一种基于脉宽调制电路的电磁层析成像系统激励信号源

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2000907C3 (de) * 1970-01-09 1978-05-18 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Phasenvergleichsschaltung, z.B. für einen geregelten Oszillator in einem Fernsehgerät
US3711641A (en) * 1971-03-22 1973-01-16 Rca Corp Velocity adjusting system
DE2650822C3 (de) * 1976-11-06 1980-03-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Abstimmschaltung für einen Überlagerungsempfänger
US4167711A (en) * 1978-05-26 1979-09-11 Motorola, Inc. Phase detector output stage for phase locked loop
JPS5671856A (en) * 1979-11-15 1981-06-15 Sony Corp Playback device of disc
US4388713A (en) * 1979-12-27 1983-06-14 Victor Company Of Japan, Ltd. Rotation control system in a rotary recording medium reproducing apparatus
JPS5764371A (en) * 1980-09-30 1982-04-19 Toshiba Corp Rotation control system of disk recording medium
JPS583118A (ja) * 1981-06-30 1983-01-08 Sony Corp デイスク再生装置の波形変換回路
JPS58130631A (ja) * 1982-01-28 1983-08-04 Fujitsu Ltd フエイズロツクドル−プ
JPS58186385A (ja) * 1982-04-21 1983-10-31 Hitachi Ltd 周波数電圧変換装置
JPS59185071A (ja) * 1983-04-04 1984-10-20 Hitachi Ltd 情報記録デイスクの再生速度制御装置
FR2545970B1 (fr) * 1983-05-12 1988-10-07 Victor Company Of Japan Appareil de lecture de support d'enregistrement rotatif
US4745372A (en) * 1985-10-17 1988-05-17 Matsushita Electric Industrial Co., Ltd. Phase-locked-loop circuit having a charge pump
JPH0787362B2 (ja) * 1986-03-17 1995-09-20 日本電気株式会社 位相同期ル−プ
CA1284361C (en) * 1986-08-29 1991-05-21 Mitel Corporation Analog phase locked loop
JPS63154087A (ja) * 1986-12-16 1988-06-27 Canon Inc モ−タの制御装置
JPH02231989A (ja) * 1989-03-03 1990-09-13 Sharp Corp モータ制御方法
SE8903799D0 (sv) * 1989-11-13 1989-11-13 Ericsson Telefon Ab L M Foerfarande och anordning foer att variera slingbandbredden hos en faslaast slinga
US5081427A (en) * 1990-11-29 1992-01-14 Motorola, Inc. Fast lock time phase locked loop
US5121085A (en) * 1991-06-28 1992-06-09 Digital Equipment Corporation Dual-charge-pump bandwidth-switched phase-locked loop

Also Published As

Publication number Publication date
ES2043368T3 (es) 1993-12-16
AU5402390A (en) 1990-11-16
SG121594G (en) 1995-01-13
EP0468989B1 (de) 1993-06-30
US5298812A (en) 1994-03-29
TR25489A (tr) 1993-05-01
KR920702077A (ko) 1992-08-12
DK0468989T3 (da) 1993-08-30
CN1046633A (zh) 1990-10-31
JP2877949B2 (ja) 1999-04-05
CN1019339B (zh) 1992-12-02
DD293906A5 (de) 1991-09-12
DE59001894D1 (de) 1993-08-05
WO1990013172A1 (de) 1990-11-01
JPH04504798A (ja) 1992-08-20
KR0151596B1 (ko) 1998-12-15
EP0468989A1 (de) 1992-02-05
SG138894G (en) 1995-01-13
DE3912837A1 (de) 1990-10-25
ATE91203T1 (de) 1993-07-15

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Legal Events

Date Code Title Description
PF Patent in force
PE Patent expired

Effective date: 20100409