JPS6446202A - Magnetic card reader - Google Patents

Magnetic card reader

Info

Publication number
JPS6446202A
JPS6446202A JP20247287A JP20247287A JPS6446202A JP S6446202 A JPS6446202 A JP S6446202A JP 20247287 A JP20247287 A JP 20247287A JP 20247287 A JP20247287 A JP 20247287A JP S6446202 A JPS6446202 A JP S6446202A
Authority
JP
Japan
Prior art keywords
data
circuits
cpu
mode
switching signal
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
JP20247287A
Other languages
Japanese (ja)
Inventor
Yuji Tanaka
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.)
Omron Corp
Original Assignee
Omron Tateisi Electronics Co
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 Omron Tateisi Electronics Co filed Critical Omron Tateisi Electronics Co
Priority to JP20247287A priority Critical patent/JPS6446202A/en
Publication of JPS6446202A publication Critical patent/JPS6446202A/en
Pending legal-status Critical Current

Links

Landscapes

  • Digital Magnetic Recording (AREA)

Abstract

PURPOSE:To enable reading with media in any magnetization state by switching a reference value adapted to a flawed medium and a reference value adapted to a low level medium during operation. CONSTITUTION:A mode switching signal RMCH switches a mode which enables a variable length demodulating circuit 7 and a mode which enables a fixed length demodulating circuit 27. The clock signal RCP and bit data RDP outputted from AND circuits 8, 9 or 28, 29 are inputted via OR circuits 10, 11 to a serial-parallel conversion circuit 12. The serial bit data is converted to 8-bit parallel data in said part and the parallel data is inputted to a CPU 13 which is a control part. The CPU 13 judges whether the data is right or wrong and transmits the data to a main control circuit. The CPU outputs the mode switching signal AMCH to the AND circuits 5, 25 and outputs the mode switching signal RMCH to the AND circuits 8, 9, 28, 29. The reading is thus executed with the media in any magnetization state.
JP20247287A 1987-08-13 1987-08-13 Magnetic card reader Pending JPS6446202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20247287A JPS6446202A (en) 1987-08-13 1987-08-13 Magnetic card reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20247287A JPS6446202A (en) 1987-08-13 1987-08-13 Magnetic card reader

Publications (1)

Publication Number Publication Date
JPS6446202A true JPS6446202A (en) 1989-02-20

Family

ID=16458086

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20247287A Pending JPS6446202A (en) 1987-08-13 1987-08-13 Magnetic card reader

Country Status (1)

Country Link
JP (1) JPS6446202A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5039915A (en) * 1973-08-15 1975-04-12
JPS53144707A (en) * 1977-05-24 1978-12-16 Nec Corp Signal detecting system by variable thresholds
JPS58128010A (en) * 1982-01-27 1983-07-30 Hitachi Ltd Data separation circuit
JPS62180565A (en) * 1986-02-04 1987-08-07 Fujitsu Ltd Magnetic card reader
JPS6366770A (en) * 1986-09-08 1988-03-25 Olympus Optical Co Ltd Recording and/or reproducing device for optical card

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5039915A (en) * 1973-08-15 1975-04-12
JPS53144707A (en) * 1977-05-24 1978-12-16 Nec Corp Signal detecting system by variable thresholds
JPS58128010A (en) * 1982-01-27 1983-07-30 Hitachi Ltd Data separation circuit
JPS62180565A (en) * 1986-02-04 1987-08-07 Fujitsu Ltd Magnetic card reader
JPS6366770A (en) * 1986-09-08 1988-03-25 Olympus Optical Co Ltd Recording and/or reproducing device for optical card

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