JPS5481732A - Control system of magnetic card reader/writer - Google Patents

Control system of magnetic card reader/writer

Info

Publication number
JPS5481732A
JPS5481732A JP14969477A JP14969477A JPS5481732A JP S5481732 A JPS5481732 A JP S5481732A JP 14969477 A JP14969477 A JP 14969477A JP 14969477 A JP14969477 A JP 14969477A JP S5481732 A JPS5481732 A JP S5481732A
Authority
JP
Japan
Prior art keywords
data
magnetic card
cpu
recorded
recording
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
JP14969477A
Other languages
Japanese (ja)
Other versions
JPS5715417B2 (en
Inventor
Atsushi Takenaka
Riichi Yano
Tsuneo Yamaga
Kiichi Tsurunaga
Manabu Higashiyama
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP14969477A priority Critical patent/JPS5481732A/en
Publication of JPS5481732A publication Critical patent/JPS5481732A/en
Publication of JPS5715417B2 publication Critical patent/JPS5715417B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE: To prevent the existing recording data from being destroyed, by storing the data to be recorded to the buffer register and reading in the condition of the output terminal of data with CPU.
CONSTITUTION: The data recording and reproduction are made to the magnetic card, and even at the data reqroduction, if the recording data or similar signal is inputted from the interface I/O INT, it is recorded in the magnetic card. In this case, ahead the data reproduction, the data to be recorded in the interface I/O INT is read in from the C bus by every 3-bit and is stored to the buffer address register 18 and checked with CPU with a suitable method. Thus, the condition of the output terminal of data is read in with CPU, and the data of existing recording destruction can be prevented by judging the propriety of data reproduction with the result.
COPYRIGHT: (C)1979,JPO&Japio
JP14969477A 1977-12-13 1977-12-13 Control system of magnetic card reader/writer Granted JPS5481732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14969477A JPS5481732A (en) 1977-12-13 1977-12-13 Control system of magnetic card reader/writer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14969477A JPS5481732A (en) 1977-12-13 1977-12-13 Control system of magnetic card reader/writer

Publications (2)

Publication Number Publication Date
JPS5481732A true JPS5481732A (en) 1979-06-29
JPS5715417B2 JPS5715417B2 (en) 1982-03-30

Family

ID=15480761

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14969477A Granted JPS5481732A (en) 1977-12-13 1977-12-13 Control system of magnetic card reader/writer

Country Status (1)

Country Link
JP (1) JPS5481732A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51114044A (en) * 1975-03-31 1976-10-07 Tokyo Electric Co Ltd Electronic register

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51114044A (en) * 1975-03-31 1976-10-07 Tokyo Electric Co Ltd Electronic register

Also Published As

Publication number Publication date
JPS5715417B2 (en) 1982-03-30

Similar Documents

Publication Publication Date Title
MY114253A (en) Disc data reproducing apparatus and signal processing circuit.
EP0654288A4 (en) Collection processor for repetitively usable recording medium.
JPS55115121A (en) Input and output control unit possible for duplicated recording
JPS5680872A (en) Buffer memory control system
JPS567216A (en) Protecting method for card recording content
JPS5481732A (en) Control system of magnetic card reader/writer
JPS5640946A (en) Reading device of magnetic recording medium
JPS54146618A (en) Writing protective method
JPS57109055A (en) Readout control system for microinstruction
JPS53136811A (en) Magnetic card rerecorder
JPS57131166A (en) Partial read and record control device
EP0293238A3 (en) Text processing system
JPS5494847A (en) Read-in system for result of parity check to reproducing data with magnetic card reader/writer
JPS6435777A (en) Data storage device
JPS554757A (en) Error control system of memory unit
JPS5264233A (en) Magnetic recording medium control system of optical character reading unit
JPS5797171A (en) Word processor
JPS57212606A (en) Magnetic card recording system
JPS57763A (en) External memory device
JPS53141518A (en) Storing system
JPS5562515A (en) Medium write error processing system
JPS5634120A (en) Magnetic tape unit
JPS5447446A (en) Magnetic disc control unit
JPS5589911A (en) Recording system of digital magnetic tape
JPS5567985A (en) Information processor