JPS53144707A - Signal detecting system by variable thresholds - Google Patents
Signal detecting system by variable thresholdsInfo
- Publication number
- JPS53144707A JPS53144707A JP5934977A JP5934977A JPS53144707A JP S53144707 A JPS53144707 A JP S53144707A JP 5934977 A JP5934977 A JP 5934977A JP 5934977 A JP5934977 A JP 5934977A JP S53144707 A JPS53144707 A JP S53144707A
- Authority
- JP
- Japan
- Prior art keywords
- detecting system
- signal detecting
- variable thresholds
- retrial
- threshold
- 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 relieve errors of information owing to noise on a recording media through retrial by. detecting signal at a constant threshold in ordinary reading and while changing the threshold in the case of retrial.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5934977A JPS53144707A (en) | 1977-05-24 | 1977-05-24 | Signal detecting system by variable thresholds |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5934977A JPS53144707A (en) | 1977-05-24 | 1977-05-24 | Signal detecting system by variable thresholds |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS53144707A true JPS53144707A (en) | 1978-12-16 |
JPS6232546B2 JPS6232546B2 (en) | 1987-07-15 |
Family
ID=13110712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5934977A Granted JPS53144707A (en) | 1977-05-24 | 1977-05-24 | Signal detecting system by variable thresholds |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53144707A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5682976A (en) * | 1979-12-10 | 1981-07-07 | Nippon Telegr & Teleph Corp <Ntt> | Mark read system |
JPS59221814A (en) * | 1983-05-30 | 1984-12-13 | Maitetsuku:Kk | Digital signal reproducing device for cassette tape |
JPS62178103A (en) * | 1986-01-31 | 1987-08-05 | Fujitsu Ltd | Controlling system for commodity carrying system |
JPS6446202A (en) * | 1987-08-13 | 1989-02-20 | Omron Tateisi Electronics Co | Magnetic card reader |
JPH04348488A (en) * | 1990-02-07 | 1992-12-03 | Internatl Business Mach Corp <Ibm> | Method and apparatus for decoding two-freqeuncy data signal |
JPH05500721A (en) * | 1989-09-22 | 1993-02-12 | ザ・ガバナー・アンド・カンパニー・オブ・ザ・バンク・オブ・イングランド | Magnetic code reader with adjustable threshold |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04107853A (en) * | 1990-08-28 | 1992-04-09 | Nec Corp | External lead correcting method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5319014A (en) * | 1976-08-04 | 1978-02-21 | Fujitsu Ltd | Magnetically recording and reproducing system |
-
1977
- 1977-05-24 JP JP5934977A patent/JPS53144707A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5319014A (en) * | 1976-08-04 | 1978-02-21 | Fujitsu Ltd | Magnetically recording and reproducing system |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5682976A (en) * | 1979-12-10 | 1981-07-07 | Nippon Telegr & Teleph Corp <Ntt> | Mark read system |
JPS6223915B2 (en) * | 1979-12-10 | 1987-05-26 | Nippon Telegraph & Telephone | |
JPS59221814A (en) * | 1983-05-30 | 1984-12-13 | Maitetsuku:Kk | Digital signal reproducing device for cassette tape |
JPS62178103A (en) * | 1986-01-31 | 1987-08-05 | Fujitsu Ltd | Controlling system for commodity carrying system |
JPS6446202A (en) * | 1987-08-13 | 1989-02-20 | Omron Tateisi Electronics Co | Magnetic card reader |
JPH05500721A (en) * | 1989-09-22 | 1993-02-12 | ザ・ガバナー・アンド・カンパニー・オブ・ザ・バンク・オブ・イングランド | Magnetic code reader with adjustable threshold |
JPH04348488A (en) * | 1990-02-07 | 1992-12-03 | Internatl Business Mach Corp <Ibm> | Method and apparatus for decoding two-freqeuncy data signal |
Also Published As
Publication number | Publication date |
---|---|
JPS6232546B2 (en) | 1987-07-15 |
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