JPS55151210A - Detector for movement of magnetic medium - Google Patents

Detector for movement of magnetic medium

Info

Publication number
JPS55151210A
JPS55151210A JP5991679A JP5991679A JPS55151210A JP S55151210 A JPS55151210 A JP S55151210A JP 5991679 A JP5991679 A JP 5991679A JP 5991679 A JP5991679 A JP 5991679A JP S55151210 A JPS55151210 A JP S55151210A
Authority
JP
Japan
Prior art keywords
magnetic field
magnet roller
magnetic
input
detector
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
JP5991679A
Other languages
Japanese (ja)
Inventor
Shuhei Tsuchimoto
Shunichi Matsukawa
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP5991679A priority Critical patent/JPS55151210A/en
Publication of JPS55151210A publication Critical patent/JPS55151210A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the degree of freedom as to the arrangement relation between a magnet roller and magnetic field detector by detecting a magnetic medium moving by detecting a magnetic field leaking from the magnetic medium by a detector making use of thin-film magnetic rsistance effect elements.
CONSTITUTION: Magnetic field detection part 16 with magnetic resistance effect elements 1a and 1b arranged corresponding to magnetic field generation part 15 in which magnet roller 2 is arranged detects a leakage magnetic field and the detection signal is amplified, input to waveform shaping circuit 18 and then input to AND gate circuit 20 via phase discriminating circuit 19 to obtain output signals 21 and 22. Output signals 21 and 22 accord with the turning direction of magnet roller 2 and those are input to up/down counter, so that count results obtained by adding and subtracting according to the turning direction of magnet roller 2 can be displayed.
COPYRIGHT: (C)1980,JPO&Japio
JP5991679A 1979-05-15 1979-05-15 Detector for movement of magnetic medium Pending JPS55151210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5991679A JPS55151210A (en) 1979-05-15 1979-05-15 Detector for movement of magnetic medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5991679A JPS55151210A (en) 1979-05-15 1979-05-15 Detector for movement of magnetic medium

Publications (1)

Publication Number Publication Date
JPS55151210A true JPS55151210A (en) 1980-11-25

Family

ID=13126925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5991679A Pending JPS55151210A (en) 1979-05-15 1979-05-15 Detector for movement of magnetic medium

Country Status (1)

Country Link
JP (1) JPS55151210A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5868615A (en) * 1981-10-20 1983-04-23 Sharp Corp Output circuit of magnetic type rotary encoder
JPS5879113A (en) * 1981-11-05 1983-05-12 Matsushita Electric Ind Co Ltd Rotation detecting device
US5730310A (en) * 1993-10-01 1998-03-24 Yoshihara; Hiroshi Lid opening mechanism system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5868615A (en) * 1981-10-20 1983-04-23 Sharp Corp Output circuit of magnetic type rotary encoder
JPS5879113A (en) * 1981-11-05 1983-05-12 Matsushita Electric Ind Co Ltd Rotation detecting device
US5730310A (en) * 1993-10-01 1998-03-24 Yoshihara; Hiroshi Lid opening mechanism system

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