JPS55157150A - Recording method of periodic magnetic signal - Google Patents

Recording method of periodic magnetic signal

Info

Publication number
JPS55157150A
JPS55157150A JP6424679A JP6424679A JPS55157150A JP S55157150 A JPS55157150 A JP S55157150A JP 6424679 A JP6424679 A JP 6424679A JP 6424679 A JP6424679 A JP 6424679A JP S55157150 A JPS55157150 A JP S55157150A
Authority
JP
Japan
Prior art keywords
magnetic signal
magnetic
recording
signal
motor
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.)
Pending
Application number
JP6424679A
Other languages
Japanese (ja)
Inventor
Tsunehiro Maruo
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 JP6424679A priority Critical patent/JPS55157150A/en
Publication of JPS55157150A publication Critical patent/JPS55157150A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make an expensive magnetic scale plate needless, by recording the magnetic signal of a wave length approximately equal to a prescribed wave length onto a part of the recording part of the periodic magnetic signal and by reproducing the recorded magnetic signal by the reproducing head and by applying the reproduced signal to the recording head.
CONSTITUTION: Rotation axis 6 is provided rotatably in motor case 23 of the recording part of the magnetic signal of a magnetic body by bearing 24, and rotor disc 8, ring 9, yoke member 25, and magnets 26 and 27 are fixed to rotation axis 6 in one body to constitute a rotor. Coils 28 and 29 constituting a stator are provided oppositely to magnets 26 and 27 in the upper part of motor case 23. By this constitution, when a current is flowed to coils 28 and 29 to drive the motor, the above- mentioned rotor rotates, and therefore, not only the driving motor but also expensive master magnetic scale plate 4 can be omitted, so that the cost can be reduced.
COPYRIGHT: (C)1980,JPO&Japio
JP6424679A 1979-05-24 1979-05-24 Recording method of periodic magnetic signal Pending JPS55157150A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6424679A JPS55157150A (en) 1979-05-24 1979-05-24 Recording method of periodic magnetic signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6424679A JPS55157150A (en) 1979-05-24 1979-05-24 Recording method of periodic magnetic signal

Publications (1)

Publication Number Publication Date
JPS55157150A true JPS55157150A (en) 1980-12-06

Family

ID=13252594

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6424679A Pending JPS55157150A (en) 1979-05-24 1979-05-24 Recording method of periodic magnetic signal

Country Status (1)

Country Link
JP (1) JPS55157150A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63163214A (en) * 1986-12-26 1988-07-06 Inoue Japax Res Inc Position and length detecting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63163214A (en) * 1986-12-26 1988-07-06 Inoue Japax Res Inc Position and length detecting device

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