JPS53144707A - Signal detecting system by variable thresholds - Google Patents

Signal detecting system by variable thresholds

Info

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
Application number
JP5934977A
Other languages
Japanese (ja)
Other versions
JPS6232546B2 (en
Inventor
Masahiro Shimauji
Hideaki Uchikura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5934977A priority Critical patent/JPS53144707A/en
Publication of JPS53144707A publication Critical patent/JPS53144707A/en
Publication of JPS6232546B2 publication Critical patent/JPS6232546B2/ja
Granted legal-status Critical Current

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
JP5934977A 1977-05-24 1977-05-24 Signal detecting system by variable thresholds Granted JPS53144707A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04107853A (en) * 1990-08-28 1992-04-09 Nec Corp External lead correcting method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5319014A (en) * 1976-08-04 1978-02-21 Fujitsu Ltd Magnetically recording and reproducing system

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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