JPS55151210A - Detector for movement of magnetic medium - Google Patents
Detector for movement of magnetic mediumInfo
- 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
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
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)
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 |
-
1979
- 1979-05-15 JP JP5991679A patent/JPS55151210A/en active Pending
Cited By (3)
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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