FR1107894A - Appareil d'enregistrement magnétique - Google Patents
Appareil d'enregistrement magnétiqueInfo
- Publication number
- FR1107894A FR1107894A FR1107894DA FR1107894A FR 1107894 A FR1107894 A FR 1107894A FR 1107894D A FR1107894D A FR 1107894DA FR 1107894 A FR1107894 A FR 1107894A
- Authority
- FR
- France
- Prior art keywords
- magnetic recording
- recording device
- 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.)
- Expired
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
- G11B20/1488—Digital recording or reproducing using self-clocking codes characterised by the use of three levels
- G11B20/1492—Digital recording or reproducing using self-clocking codes characterised by the use of three levels two levels are symmetric, in respect of the sign to the third level which is "zero"
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US357502A US2764463A (en) | 1953-05-26 | 1953-05-26 | Magnetic recording system |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1107894A true FR1107894A (fr) | 1956-01-05 |
Family
ID=23405888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1107894D Expired FR1107894A (fr) | 1953-05-26 | 1954-05-25 | Appareil d'enregistrement magnétique |
Country Status (3)
Country | Link |
---|---|
US (1) | US2764463A (fr) |
FR (1) | FR1107894A (fr) |
GB (1) | GB759089A (fr) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB785879A (en) * | 1954-02-25 | 1957-11-06 | Standard Telephones Cables Ltd | Improvements in or relating to apparatus for the storage of intelligence signals |
US2922144A (en) * | 1954-03-01 | 1960-01-19 | Smith Corona Marchant Inc | Read-record circuits |
US2864077A (en) * | 1954-03-10 | 1958-12-09 | Turk John E De | Means for distinguishing positive and negative pulses in magnetic tape recording |
US2896192A (en) * | 1954-08-09 | 1959-07-21 | Lab For Electronics Inc | Data processing apparatus |
US2917726A (en) * | 1955-03-25 | 1959-12-15 | Underwood Corp | Magnetic recording system |
US2972735A (en) * | 1955-05-04 | 1961-02-21 | Lab For Electronics Inc | Data processing |
US2941189A (en) * | 1955-07-19 | 1960-06-14 | Automatic Elect Lab | Magnetic memory apparatus |
US2937371A (en) * | 1955-07-26 | 1960-05-17 | Curtiss Wright Corp | Information transfer system |
NL130689C (fr) * | 1955-10-17 | |||
US2954441A (en) * | 1955-12-13 | 1960-09-27 | Ampex | Wide band magnetic system |
US2903677A (en) * | 1956-01-13 | 1959-09-08 | Hughes Aircraft Co | Timing track recording apparatus |
US3008124A (en) * | 1956-02-23 | 1961-11-07 | Philco Corp | System for transmission and reception of binary digital information |
US3024445A (en) * | 1956-10-18 | 1962-03-06 | Rca Corp | Information transferring system |
US3064242A (en) * | 1957-04-11 | 1962-11-13 | Sperry Rand Corp | Magnetic record sensing apparatus |
US2942184A (en) * | 1957-07-15 | 1960-06-21 | Gen Motors Corp | Vehicle accelerometer |
US3108265A (en) * | 1957-08-14 | 1963-10-22 | Time Inc | Magnetic data recording system |
US3108260A (en) * | 1957-12-05 | 1963-10-22 | Bell Telephone Labor Inc | Magnetic recording and reproducing system |
US2952008A (en) * | 1957-12-26 | 1960-09-06 | Ibm | Record actuated timing and checking means |
US3038148A (en) * | 1958-04-25 | 1962-06-05 | Ibm | Apparatus for increasing the storage capacity of a magnetic drum |
US2954267A (en) * | 1958-06-05 | 1960-09-27 | Olivetti Corp Of America | Modified return-to-zero digital recording system |
US2994853A (en) * | 1958-07-07 | 1961-08-01 | Ibm | Information record reading system |
NL132966C (fr) * | 1958-11-26 | |||
US3067422A (en) * | 1958-12-24 | 1962-12-04 | Ibm | Phase distortion correction for high density magnetic recording |
US3031646A (en) * | 1959-01-26 | 1962-04-24 | Gen Precision Inc | Checking circuit for digital computers |
US3159840A (en) * | 1960-11-14 | 1964-12-01 | Honeywell Inc | Pattern sensitivity compensation in high pulse density recording |
NL262775A (fr) * | 1961-03-24 | |||
NO300692B1 (no) | 1994-04-29 | 1997-07-07 | Biotec Mackzymal As | Solubilisert forgrenet ß-1,3-glukan og anvendelse derav samt anvendelse av usolubilisert forgrenet ß-1,3-glukan |
-
1953
- 1953-05-26 US US357502A patent/US2764463A/en not_active Expired - Lifetime
-
1954
- 1954-05-21 GB GB14968/54A patent/GB759089A/en not_active Expired
- 1954-05-25 FR FR1107894D patent/FR1107894A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB759089A (en) | 1956-10-10 |
US2764463A (en) | 1956-09-25 |
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