JPS5392633A - Read only memory unit - Google Patents
Read only memory unitInfo
- Publication number
- JPS5392633A JPS5392633A JP737077A JP737077A JPS5392633A JP S5392633 A JPS5392633 A JP S5392633A JP 737077 A JP737077 A JP 737077A JP 737077 A JP737077 A JP 737077A JP S5392633 A JPS5392633 A JP S5392633A
- Authority
- JP
- Japan
- Prior art keywords
- read
- memory unit
- memory element
- memory
- pbs
- 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
- Read Only Memory (AREA)
- For Increasing The Reliability Of Semiconductor Memories (AREA)
- Detection And Correction Of Errors (AREA)
- Techniques For Improving Reliability Of Storages (AREA)
Abstract
PURPOSE: To raise a use efficiency of the memory element up to 100% and reduce the cost and improve reliability by storing PBs, which correspond to the memory capacity of a parity bit PB memory element, in PB memory element.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP737077A JPS5392633A (en) | 1977-01-25 | 1977-01-25 | Read only memory unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP737077A JPS5392633A (en) | 1977-01-25 | 1977-01-25 | Read only memory unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5392633A true JPS5392633A (en) | 1978-08-14 |
Family
ID=11664075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP737077A Pending JPS5392633A (en) | 1977-01-25 | 1977-01-25 | Read only memory unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5392633A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5545110A (en) * | 1978-09-25 | 1980-03-29 | Toshiba Corp | Error detection system |
JPS5917642A (en) * | 1982-07-22 | 1984-01-28 | Meidensha Electric Mfg Co Ltd | Device for reading out parity data |
JPS59112400U (en) * | 1983-12-08 | 1984-07-28 | 富士通株式会社 | memory device |
JP2008108297A (en) * | 2006-10-23 | 2008-05-08 | Toshiba Corp | Nonvolatile semiconductor memory device |
-
1977
- 1977-01-25 JP JP737077A patent/JPS5392633A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5545110A (en) * | 1978-09-25 | 1980-03-29 | Toshiba Corp | Error detection system |
JPS5917642A (en) * | 1982-07-22 | 1984-01-28 | Meidensha Electric Mfg Co Ltd | Device for reading out parity data |
JPS59112400U (en) * | 1983-12-08 | 1984-07-28 | 富士通株式会社 | memory device |
JPS6117480Y2 (en) * | 1983-12-08 | 1986-05-28 | ||
JP2008108297A (en) * | 2006-10-23 | 2008-05-08 | Toshiba Corp | Nonvolatile semiconductor memory device |
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