JPH0446076B2 - - Google Patents

Info

Publication number
JPH0446076B2
JPH0446076B2 JP56212086A JP21208681A JPH0446076B2 JP H0446076 B2 JPH0446076 B2 JP H0446076B2 JP 56212086 A JP56212086 A JP 56212086A JP 21208681 A JP21208681 A JP 21208681A JP H0446076 B2 JPH0446076 B2 JP H0446076B2
Authority
JP
Japan
Prior art keywords
signal
phase
circuit
pulse
rotor
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 - Lifetime
Application number
JP56212086A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58117459A (ja
Inventor
Mitsuo Uzuka
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP56212086A priority Critical patent/JPS58117459A/ja
Publication of JPS58117459A publication Critical patent/JPS58117459A/ja
Publication of JPH0446076B2 publication Critical patent/JPH0446076B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
JP56212086A 1981-12-30 1981-12-30 映像信号記録再生装置 Granted JPS58117459A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56212086A JPS58117459A (ja) 1981-12-30 1981-12-30 映像信号記録再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56212086A JPS58117459A (ja) 1981-12-30 1981-12-30 映像信号記録再生装置

Publications (2)

Publication Number Publication Date
JPS58117459A JPS58117459A (ja) 1983-07-13
JPH0446076B2 true JPH0446076B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-07-28

Family

ID=16616635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56212086A Granted JPS58117459A (ja) 1981-12-30 1981-12-30 映像信号記録再生装置

Country Status (1)

Country Link
JP (1) JPS58117459A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2530118B2 (ja) * 1984-08-13 1996-09-04 セイコーエプソン株式会社 磁気記録再生装置
JPS6161253A (ja) * 1984-08-31 1986-03-29 Seiko Epson Corp 回転ヘツドドラム
US5148070A (en) * 1991-08-30 1992-09-15 Platt Saco Lowell Corporation Apparatus for commutation of an electric motor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5683812A (en) * 1979-12-11 1981-07-08 Matsushita Electric Ind Co Ltd Video tape recorder

Also Published As

Publication number Publication date
JPS58117459A (ja) 1983-07-13

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