JPS5273794A - Magnetic detection circuit for bank notes, etc. - Google Patents
Magnetic detection circuit for bank notes, etc.Info
- Publication number
- JPS5273794A JPS5273794A JP50150403A JP15040375A JPS5273794A JP S5273794 A JPS5273794 A JP S5273794A JP 50150403 A JP50150403 A JP 50150403A JP 15040375 A JP15040375 A JP 15040375A JP S5273794 A JPS5273794 A JP S5273794A
- Authority
- JP
- Japan
- Prior art keywords
- detection circuit
- magnetic detection
- bank notes
- elements
- parallel
- 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.)
- Granted
Links
Abstract
PURPOSE: To improve the S/N of detection output by connecting in series two magnetoresistive elements disposed parallel in proximity in a bias magnetic field, biasing the leements with a constant current and applying the output via the connection point of the elements and the mid-point of a 1/2 voltage dividing circuit connected in parallel to the elements to a differnetial amplifier.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50150403A JPS5843794B2 (en) | 1975-12-16 | 1975-12-16 | Shiheitouno Jikikenshiyutsu Cairo |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50150403A JPS5843794B2 (en) | 1975-12-16 | 1975-12-16 | Shiheitouno Jikikenshiyutsu Cairo |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5273794A true JPS5273794A (en) | 1977-06-21 |
JPS5843794B2 JPS5843794B2 (en) | 1983-09-29 |
Family
ID=15496200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50150403A Expired JPS5843794B2 (en) | 1975-12-16 | 1975-12-16 | Shiheitouno Jikikenshiyutsu Cairo |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5843794B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS603086A (en) * | 1983-06-21 | 1985-01-09 | 富士電機株式会社 | Authenticity identifier for paper money or the like |
JPS603085A (en) * | 1983-06-21 | 1985-01-09 | 富士電機株式会社 | Authenticity identification system for paper money |
JPS629503A (en) * | 1985-07-08 | 1987-01-17 | Nippon Telegr & Teleph Corp <Ntt> | Signal reproducing device for magnetic resistance head |
-
1975
- 1975-12-16 JP JP50150403A patent/JPS5843794B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS603086A (en) * | 1983-06-21 | 1985-01-09 | 富士電機株式会社 | Authenticity identifier for paper money or the like |
JPS603085A (en) * | 1983-06-21 | 1985-01-09 | 富士電機株式会社 | Authenticity identification system for paper money |
JPS629503A (en) * | 1985-07-08 | 1987-01-17 | Nippon Telegr & Teleph Corp <Ntt> | Signal reproducing device for magnetic resistance head |
Also Published As
Publication number | Publication date |
---|---|
JPS5843794B2 (en) | 1983-09-29 |
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