JPS55160386A - Bubble memory unit - Google Patents
Bubble memory unitInfo
- Publication number
- JPS55160386A JPS55160386A JP6560879A JP6560879A JPS55160386A JP S55160386 A JPS55160386 A JP S55160386A JP 6560879 A JP6560879 A JP 6560879A JP 6560879 A JP6560879 A JP 6560879A JP S55160386 A JPS55160386 A JP S55160386A
- Authority
- JP
- Japan
- Prior art keywords
- memory unit
- access
- bubble memory
- driving circuit
- circuit
- 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 make it possible to make sure easily that access to a bubble memory unit is in process, by putting an access display method into operation by making use of a revolving-magnetic-field driving signal.
CONSTITUTION: Each bubble memory unit is provided with revolving-magnetic- field driving circuit 1, inverter 2 and display circuit 3. Now, when access to a bubble memory unit is attained, FF12 is set by drive start signal 10 of corresponding driving circuit 1 and its output makes light emitting diode 30 of display circuit 3 come on via inverter 2, showing that the access is in process. On the end of data transfer, FF12 is reset by drive stop signal 11 from driving circuit 1 and diode 30 goes off. The simple display circuit like this is attached so as to make sure easily of the access to the buffer memory unit.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6560879A JPS55160386A (en) | 1979-05-29 | 1979-05-29 | Bubble memory unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6560879A JPS55160386A (en) | 1979-05-29 | 1979-05-29 | Bubble memory unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55160386A true JPS55160386A (en) | 1980-12-13 |
JPS6161196B2 JPS6161196B2 (en) | 1986-12-24 |
Family
ID=13291887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6560879A Granted JPS55160386A (en) | 1979-05-29 | 1979-05-29 | Bubble memory unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55160386A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5835786A (en) * | 1981-08-26 | 1983-03-02 | Hitachi Ltd | Magnetic bubble memory system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4976673U (en) * | 1972-10-20 | 1974-07-03 | ||
JPS5197416U (en) * | 1975-02-04 | 1976-08-05 | ||
JPS5297528U (en) * | 1976-01-21 | 1977-07-22 | ||
JPS53139948A (en) * | 1977-05-13 | 1978-12-06 | Fujitsu Ltd | Data collector using magnetic bubble cassette |
JPS5549309U (en) * | 1978-09-19 | 1980-03-31 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5383631A (en) * | 1976-12-29 | 1978-07-24 | Matsushita Electric Ind Co Ltd | Printer |
-
1979
- 1979-05-29 JP JP6560879A patent/JPS55160386A/en active Granted
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4976673U (en) * | 1972-10-20 | 1974-07-03 | ||
JPS5197416U (en) * | 1975-02-04 | 1976-08-05 | ||
JPS5297528U (en) * | 1976-01-21 | 1977-07-22 | ||
JPS53139948A (en) * | 1977-05-13 | 1978-12-06 | Fujitsu Ltd | Data collector using magnetic bubble cassette |
JPS5549309U (en) * | 1978-09-19 | 1980-03-31 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5835786A (en) * | 1981-08-26 | 1983-03-02 | Hitachi Ltd | Magnetic bubble memory system |
Also Published As
Publication number | Publication date |
---|---|
JPS6161196B2 (en) | 1986-12-24 |
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