JPS55122216A - Magnetic card read/write control unit - Google Patents
Magnetic card read/write control unitInfo
- Publication number
- JPS55122216A JPS55122216A JP2824079A JP2824079A JPS55122216A JP S55122216 A JPS55122216 A JP S55122216A JP 2824079 A JP2824079 A JP 2824079A JP 2824079 A JP2824079 A JP 2824079A JP S55122216 A JPS55122216 A JP S55122216A
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- data
- write
- read
- gates
- 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
Links
Landscapes
- Digital Magnetic Recording (AREA)
Abstract
PURPOSE: To shorten the processing time by using effectively going and returning pathes of cards.
CONSTITUTION: When command 1 is set from a CPU to FF21, gates 9W12 and 13W16 are opened. Next, when a write signal is set from the CPU to timing control circuit 3, write data WD1 to WD8 pass through gates 9W12 and are written from shift register 4 to magnetic card read/write unit 1. Then, read data is converted to parallel data by shift register 2 in the operation of the returning path and has bit arrangement reversed by gates 13W16 and is transmitted to the CPU as read data RD1WRD8. In case that data read and write are performed in the going path and the returning path resectively, command 2 is given from the CPU to FF21.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2824079A JPS55122216A (en) | 1979-03-13 | 1979-03-13 | Magnetic card read/write control unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2824079A JPS55122216A (en) | 1979-03-13 | 1979-03-13 | Magnetic card read/write control unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55122216A true JPS55122216A (en) | 1980-09-19 |
Family
ID=12243058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2824079A Pending JPS55122216A (en) | 1979-03-13 | 1979-03-13 | Magnetic card read/write control unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55122216A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61240408A (en) * | 1985-04-17 | 1986-10-25 | Canon Inc | Recognising method for record information |
JPS6246469A (en) * | 1985-08-24 | 1987-02-28 | Tohoku Metal Ind Ltd | Magnetic card and its information recording system |
US5909418A (en) * | 1994-08-26 | 1999-06-01 | Nippon Conlux Co., Ltd. | Optical information recording device and method for detecting and verifying recorded information |
-
1979
- 1979-03-13 JP JP2824079A patent/JPS55122216A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61240408A (en) * | 1985-04-17 | 1986-10-25 | Canon Inc | Recognising method for record information |
JPS6246469A (en) * | 1985-08-24 | 1987-02-28 | Tohoku Metal Ind Ltd | Magnetic card and its information recording system |
US5909418A (en) * | 1994-08-26 | 1999-06-01 | Nippon Conlux Co., Ltd. | Optical information recording device and method for detecting and verifying recorded information |
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