FR2171216B1 - - Google Patents

Info

Publication number
FR2171216B1
FR2171216B1 FR7304236A FR7304236A FR2171216B1 FR 2171216 B1 FR2171216 B1 FR 2171216B1 FR 7304236 A FR7304236 A FR 7304236A FR 7304236 A FR7304236 A FR 7304236A FR 2171216 B1 FR2171216 B1 FR 2171216B1
Authority
FR
France
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
FR7304236A
Other languages
French (fr)
Other versions
FR2171216A1 (en
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2171216A1 publication Critical patent/FR2171216A1/fr
Application granted granted Critical
Publication of FR2171216B1 publication Critical patent/FR2171216B1/fr
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
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
    • G11B27/13—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier the information being derived from movement of the record carrier, e.g. using tachometer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/18—Controlling the angular speed together with angular position or phase
    • H02P23/183—Controlling the angular speed together with angular position or phase of one shaft without controlling the prime mover
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/90—Tape-like record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Television Signal Processing For Recording (AREA)
  • Control Of Velocity Or Acceleration (AREA)
FR7304236A 1972-02-08 1973-02-07 Expired FR2171216B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7201609A NL7201609A (en) 1972-02-08 1972-02-08

Publications (2)

Publication Number Publication Date
FR2171216A1 FR2171216A1 (en) 1973-09-21
FR2171216B1 true FR2171216B1 (en) 1980-03-07

Family

ID=19815320

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7304236A Expired FR2171216B1 (en) 1972-02-08 1973-02-07

Country Status (8)

Country Link
JP (1) JPS4893307A (en)
AT (1) AT319353B (en)
BE (1) BE795157A (en)
CA (1) CA1021058A (en)
FR (1) FR2171216B1 (en)
GB (1) GB1416269A (en)
IT (1) IT978819B (en)
NL (1) NL7201609A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2747448A1 (en) * 1977-10-21 1979-04-26 Sony Corp SERVO DEVICE FOR REGULATING THE ROTATIONAL PHASE OF A CIRCULATING BODY
US4477750A (en) * 1982-05-17 1984-10-16 International Business Machines Corporation Multi-level disk drive motor speed control

Also Published As

Publication number Publication date
DE2305848B2 (en) 1976-04-22
AU5179673A (en) 1974-08-08
GB1416269A (en) 1975-12-03
AT319353B (en) 1974-12-27
JPS4893307A (en) 1973-12-03
IT978819B (en) 1974-09-20
NL7201609A (en) 1973-08-10
BE795157A (en) 1973-08-08
DE2305848A1 (en) 1973-08-16
FR2171216A1 (en) 1973-09-21
CA1021058A (en) 1977-11-15

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Legal Events

Date Code Title Description
ST Notification of lapse