JPS57181421A - Magnetic recorder and reproducer - Google Patents
Magnetic recorder and reproducerInfo
- Publication number
- JPS57181421A JPS57181421A JP6520681A JP6520681A JPS57181421A JP S57181421 A JPS57181421 A JP S57181421A JP 6520681 A JP6520681 A JP 6520681A JP 6520681 A JP6520681 A JP 6520681A JP S57181421 A JPS57181421 A JP S57181421A
- Authority
- JP
- Japan
- Prior art keywords
- gaps
- magnetic
- output
- recording medium
- magnetic 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
- G11B20/1419—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Digital Magnetic Recording (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6520681A JPS57181421A (en) | 1981-05-01 | 1981-05-01 | Magnetic recorder and reproducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6520681A JPS57181421A (en) | 1981-05-01 | 1981-05-01 | Magnetic recorder and reproducer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57181421A true JPS57181421A (en) | 1982-11-08 |
Family
ID=13280204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6520681A Pending JPS57181421A (en) | 1981-05-01 | 1981-05-01 | Magnetic recorder and reproducer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57181421A (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49115306A (ja) * | 1973-03-05 | 1974-11-05 | ||
JPS5062418A (ja) * | 1973-10-02 | 1975-05-28 | ||
JPS5199007A (ja) * | 1975-01-31 | 1976-09-01 | Denki Onkyo Co Ltd | Jikyomitorihetsudo |
JPS51104312A (ja) * | 1975-03-11 | 1976-09-16 | Denki Onkyo Co Ltd | Shingokeiseikairo |
JPS51114912A (en) * | 1975-04-02 | 1976-10-09 | Denki Onkyo Co Ltd | F.2f signal processing circuit |
-
1981
- 1981-05-01 JP JP6520681A patent/JPS57181421A/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49115306A (ja) * | 1973-03-05 | 1974-11-05 | ||
JPS5062418A (ja) * | 1973-10-02 | 1975-05-28 | ||
JPS5199007A (ja) * | 1975-01-31 | 1976-09-01 | Denki Onkyo Co Ltd | Jikyomitorihetsudo |
JPS51104312A (ja) * | 1975-03-11 | 1976-09-16 | Denki Onkyo Co Ltd | Shingokeiseikairo |
JPS51114912A (en) * | 1975-04-02 | 1976-10-09 | Denki Onkyo Co Ltd | F.2f signal processing circuit |
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