JPS558653A - Error detection unit of recording device - Google Patents
Error detection unit of recording deviceInfo
- Publication number
- JPS558653A JPS558653A JP8118578A JP8118578A JPS558653A JP S558653 A JPS558653 A JP S558653A JP 8118578 A JP8118578 A JP 8118578A JP 8118578 A JP8118578 A JP 8118578A JP S558653 A JPS558653 A JP S558653A
- Authority
- JP
- Japan
- Prior art keywords
- information
- circuit
- head
- bus
- recorded
- 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 improve the reliability of recorded information by comparing directly information prior to writing with information recorded on a medium.
CONSTITUTION: When recording information is sent to bus 2 from I/O interface IF1, information is recorded on a medium through modulator circuit 4, bus 5, device IF6 and head 7, and simultaneously, information on bus 2 are stored in 3 successively. Then, reproducing information dependent upon head 8 is supplied to comparison circuit 13 through IF6 and demodulator circuit 10 and is compared with information from circuit 3, and the disagreement output as the comparison result is reported to IF1. Then, circuit 3 covers the time delay between head 7 and head 8.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8118578A JPS558653A (en) | 1978-07-04 | 1978-07-04 | Error detection unit of recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8118578A JPS558653A (en) | 1978-07-04 | 1978-07-04 | Error detection unit of recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS558653A true JPS558653A (en) | 1980-01-22 |
Family
ID=13739402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8118578A Pending JPS558653A (en) | 1978-07-04 | 1978-07-04 | Error detection unit of recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS558653A (en) |
-
1978
- 1978-07-04 JP JP8118578A patent/JPS558653A/en active Pending
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