[go: up one dir, main page]

JPS55163409A - Production of magnetic recording rotary encoder - Google Patents

Production of magnetic recording rotary encoder

Info

Publication number
JPS55163409A
JPS55163409A JP7126379A JP7126379A JPS55163409A JP S55163409 A JPS55163409 A JP S55163409A JP 7126379 A JP7126379 A JP 7126379A JP 7126379 A JP7126379 A JP 7126379A JP S55163409 A JPS55163409 A JP S55163409A
Authority
JP
Japan
Prior art keywords
pattern
head
magnetic
written
track
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
JP7126379A
Other languages
Japanese (ja)
Inventor
Minoru Ikeda
Toshio Katsumori
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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7126379A priority Critical patent/JPS55163409A/en
Publication of JPS55163409A publication Critical patent/JPS55163409A/en
Pending legal-status Critical Current

Links

Landscapes

  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

PURPOSE: To obtain a magnetization inverting pattern with a high accuracy than the standard rotary encoder by repeating recording and reproduction mutually between two recording tracks provided with a plurality of magnetic heads.
CONSTITUTION: A magnetic film 3 is applied on the surface of the drum 2 mounted on the shaft so that the magnetic inverting signal 7 is written thereinto with the head 6. Then, the reproducing magnetic head 9 and the writing head 6 combines to generate the magnetizing inverting pattern 7 and the signals of the two devices are added to drive the transfer amplifier 10 whereby the magnetization inverting pattern 12 is written with the writing head 11 provided on the other track. Then, the magnetization inverting pattern 7 on the other track is read out on the writing head 11. The signal of the head drives the inverted transfer amplifier and the magnetization inverting pattern is written into the former track. The pattern is read out with the magnetic heads 6 and 9. In this manner, the transferring is repeated between the two tracks.
COPYRIGHT: (C)1980,JPO&Japio
JP7126379A 1979-06-08 1979-06-08 Production of magnetic recording rotary encoder Pending JPS55163409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7126379A JPS55163409A (en) 1979-06-08 1979-06-08 Production of magnetic recording rotary encoder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7126379A JPS55163409A (en) 1979-06-08 1979-06-08 Production of magnetic recording rotary encoder

Publications (1)

Publication Number Publication Date
JPS55163409A true JPS55163409A (en) 1980-12-19

Family

ID=13455655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7126379A Pending JPS55163409A (en) 1979-06-08 1979-06-08 Production of magnetic recording rotary encoder

Country Status (1)

Country Link
JP (1) JPS55163409A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5884519U (en) * 1981-12-03 1983-06-08 松下電器産業株式会社 Signal generator for magnetic scale
JPS6315114A (en) * 1986-07-07 1988-01-22 Emupaiya Eapooto Service:Kk Rotary encoder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5884519U (en) * 1981-12-03 1983-06-08 松下電器産業株式会社 Signal generator for magnetic scale
JPS6315114A (en) * 1986-07-07 1988-01-22 Emupaiya Eapooto Service:Kk Rotary encoder

Similar Documents

Publication Publication Date Title
JPS57117106A (en) Optical magnetic recording and reproducing method
JPS56124103A (en) Digital magnetic recording and/or reproducing method
EP0183412A3 (en) Apparatus for recording and reproducing data on a magnetic recording medium
JPS5424008A (en) Magnetic recording and photo reproducing system
ES8103427A1 (en) Tape speed control device
SE8502828D0 (en) DIGITAL VIDEO RECORDER
JPS56134365A (en) Recording system for head positioning information
JPS55163409A (en) Production of magnetic recording rotary encoder
JPS57158041A (en) Magnetic transfer recorder
JPS567243A (en) Magnetic transfer recording system
JPS52129221A (en) Magnetic reproducing unit
JPS57158040A (en) Magnetic transfer recorder
JPS5266338A (en) Pattern information record/play system
JPS5215307A (en) Data reader
JPS54138414A (en) Rotary head type magnetic recorder-reproducer
JPS54105508A (en) Magnetic recorder-reproducer
JPS52152712A (en) Magnetic recording and reproducing apparatus
JPS5654676A (en) Digital magnetic record/reproduction system
JPS54160116A (en) Information signal reproducer
JPS57103172A (en) Magnetic disk device
JPS5698709A (en) Magnetic disk device
JPS55163627A (en) Information recorder/reproducer
JPS6419516A (en) Servotrack writing device
JPS55108918A (en) Recording system
JPS53115209A (en) Magnetic recording method