DE2460534B2 - Schaltungsanordnung zur decodierung von von magnetschichtspeichern gelieferten lesesignalen - Google Patents
Schaltungsanordnung zur decodierung von von magnetschichtspeichern gelieferten lesesignalenInfo
- Publication number
- DE2460534B2 DE2460534B2 DE19742460534 DE2460534A DE2460534B2 DE 2460534 B2 DE2460534 B2 DE 2460534B2 DE 19742460534 DE19742460534 DE 19742460534 DE 2460534 A DE2460534 A DE 2460534A DE 2460534 B2 DE2460534 B2 DE 2460534B2
- Authority
- DE
- Germany
- Prior art keywords
- pulse
- output
- circuit
- flip
- flop
- 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
- 238000005070 sampling Methods 0.000 claims description 27
- 230000008859 change Effects 0.000 claims description 15
- 230000005415 magnetization Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 230000015654 memory Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 230000001934 delay Effects 0.000 claims 1
- 230000003111 delayed effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 2
- 241000244514 Lymania Species 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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
-
- 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
- G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
- G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Manipulation Of Pulses (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Digital Magnetic Recording (AREA)
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742460534 DE2460534B2 (de) | 1974-12-20 | 1974-12-20 | Schaltungsanordnung zur decodierung von von magnetschichtspeichern gelieferten lesesignalen |
| AT848075A AT353515B (de) | 1974-12-20 | 1975-11-07 | Schaltungsanordnungen zur decordierung von magnetschichtspeichern gelieferten lesesignalen |
| CH1582475A CH597724A5 (enrdf_load_stackoverflow) | 1974-12-20 | 1975-12-05 | |
| IT3032275A IT1051045B (it) | 1974-12-20 | 1975-12-16 | Disposizione circuitale per decodificare segnali di lettura forni ti da memoria a strato magnetico |
| FR7538640A FR2295514A1 (fr) | 1974-12-20 | 1975-12-17 | Montage pour decoder des signaux de lecture delivres par des memoires a couche magnetique |
| GB5154175A GB1518700A (en) | 1974-12-20 | 1975-12-17 | Decoders for decoding read-out signals from magnetic stores |
| NL7514781A NL7514781A (nl) | 1974-12-20 | 1975-12-18 | Schakelinrichting voor het decoderen van door magneetlaaggeheugens geleverde leessignalen. |
| BE162942A BE836875A (fr) | 1974-12-20 | 1975-12-19 | Montage pour decoder des signaux de lecture delivres par des memoires a couche magnetique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742460534 DE2460534B2 (de) | 1974-12-20 | 1974-12-20 | Schaltungsanordnung zur decodierung von von magnetschichtspeichern gelieferten lesesignalen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2460534A1 DE2460534A1 (de) | 1976-07-01 |
| DE2460534B2 true DE2460534B2 (de) | 1977-12-01 |
| DE2460534C3 DE2460534C3 (enrdf_load_stackoverflow) | 1978-08-03 |
Family
ID=5934093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19742460534 Granted DE2460534B2 (de) | 1974-12-20 | 1974-12-20 | Schaltungsanordnung zur decodierung von von magnetschichtspeichern gelieferten lesesignalen |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT353515B (enrdf_load_stackoverflow) |
| BE (1) | BE836875A (enrdf_load_stackoverflow) |
| CH (1) | CH597724A5 (enrdf_load_stackoverflow) |
| DE (1) | DE2460534B2 (enrdf_load_stackoverflow) |
| FR (1) | FR2295514A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1518700A (enrdf_load_stackoverflow) |
| IT (1) | IT1051045B (enrdf_load_stackoverflow) |
| NL (1) | NL7514781A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU183139B (en) * | 1980-05-14 | 1984-04-28 | Magyar Optikai Muevek | Electronic decoding circuit arrangement for systems with self-synchronization |
-
1974
- 1974-12-20 DE DE19742460534 patent/DE2460534B2/de active Granted
-
1975
- 1975-11-07 AT AT848075A patent/AT353515B/de not_active IP Right Cessation
- 1975-12-05 CH CH1582475A patent/CH597724A5/xx not_active IP Right Cessation
- 1975-12-16 IT IT3032275A patent/IT1051045B/it active
- 1975-12-17 GB GB5154175A patent/GB1518700A/en not_active Expired
- 1975-12-17 FR FR7538640A patent/FR2295514A1/fr active Granted
- 1975-12-18 NL NL7514781A patent/NL7514781A/xx not_active Application Discontinuation
- 1975-12-19 BE BE162942A patent/BE836875A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2460534A1 (de) | 1976-07-01 |
| FR2295514A1 (fr) | 1976-07-16 |
| FR2295514B3 (enrdf_load_stackoverflow) | 1979-10-05 |
| IT1051045B (it) | 1981-04-21 |
| AT353515B (de) | 1979-11-26 |
| NL7514781A (nl) | 1976-06-22 |
| BE836875A (fr) | 1976-06-21 |
| GB1518700A (en) | 1978-07-19 |
| DE2460534C3 (enrdf_load_stackoverflow) | 1978-08-03 |
| CH597724A5 (enrdf_load_stackoverflow) | 1978-04-14 |
| ATA848075A (de) | 1979-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) | ||
| 8339 | Ceased/non-payment of the annual fee |