FR1582706A - - Google Patents
Info
- Publication number
- FR1582706A FR1582706A FR1582706DA FR1582706A FR 1582706 A FR1582706 A FR 1582706A FR 1582706D A FR1582706D A FR 1582706DA FR 1582706 A FR1582706 A FR 1582706A
- Authority
- FR
- France
- 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
- G11B20/10009—Improvement or modification of read or write signals
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Digital Magnetic Recording (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US66852967A | 1967-09-18 | 1967-09-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1582706A true FR1582706A (fr) | 1969-10-03 |
Family
ID=24682675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1582706D Expired FR1582706A (fr) | 1967-09-18 | 1968-09-18 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3581297A (fr) |
BE (1) | BE720994A (fr) |
DE (1) | DE1774835C3 (fr) |
FR (1) | FR1582706A (fr) |
GB (1) | GB1242724A (fr) |
NL (1) | NL157125B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2548425A1 (fr) * | 1983-06-30 | 1985-01-04 | Lepage Joseph | Appareil de certification de bandes magnetiques |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3711843A (en) * | 1970-04-27 | 1973-01-16 | Olivetti & Co Spa | Self-adapting synchronization system for reading information from a moving support |
US3778790A (en) * | 1970-12-07 | 1973-12-11 | Micromedic Systems Inc | Incremental recordation on test tube |
US3818501A (en) * | 1971-11-11 | 1974-06-18 | Ibm | Detection of digital data using integration techniques |
US3731293A (en) * | 1972-04-05 | 1973-05-01 | Pitney Bowes Inc | Automatic phase switching of phase-coded recordings |
US3810232A (en) * | 1972-10-18 | 1974-05-07 | Singer Co | Magnetic memory read system for digital recordings |
US3947876A (en) * | 1975-01-06 | 1976-03-30 | C. J. Kennedy Company | Dual density 800 bpi NRZI and 1600 bpi PE read circuit for a digital magnetic tape transport |
US4012785A (en) * | 1976-02-13 | 1977-03-15 | Shugart Associates, Inc. | Magnetic recording playback circuit |
IT1072341B (it) * | 1976-05-20 | 1985-04-10 | Olivetti & Co Spa | Circuito e metodo per la discriminazione in lettura di dati preregistrati con codici diversi |
US4074325A (en) * | 1977-02-22 | 1978-02-14 | Teac Corporation | System for sensing the peaks of an output from a magnetic head |
JPS6343625Y2 (fr) * | 1979-06-06 | 1988-11-14 | ||
JPS563421A (en) * | 1979-06-21 | 1981-01-14 | Canon Inc | Signal converting device |
US4306194A (en) * | 1979-10-11 | 1981-12-15 | International Business Machines Corporation | Data signal detection circuit |
US4382249A (en) * | 1980-12-22 | 1983-05-03 | Honeywell Information Systems Inc. | Apparatus and method for decoding information |
US4346411A (en) * | 1981-02-17 | 1982-08-24 | International Business Machines Corporation | Amplitude sensitive three-level detector for derivative read back channel of magnetic storage device |
JPS57176866A (en) * | 1981-04-24 | 1982-10-30 | Sony Corp | Encoder of binary signal |
EP0110105B1 (fr) * | 1982-12-01 | 1987-03-18 | International Business Machines Corporation | Systèmes pour la lecture d'enregistrements magnétiques |
US4536740A (en) * | 1984-02-24 | 1985-08-20 | Magnetic Peripherals | Doublet detector for data recording or transmission |
US5204513A (en) * | 1990-10-02 | 1993-04-20 | American Magnetics Corporation | Decoder for magnetic stripe recording |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2972735A (en) * | 1955-05-04 | 1961-02-21 | Lab For Electronics Inc | Data processing |
US3092814A (en) * | 1956-08-29 | 1963-06-04 | Ibm | Signal decoding system |
US3413625A (en) * | 1965-09-28 | 1968-11-26 | Siemens Ag | Apparatus for evaluating magnetic read signals |
-
1967
- 1967-09-18 US US668529A patent/US3581297A/en not_active Expired - Lifetime
-
1968
- 1968-09-17 GB GB44062/68A patent/GB1242724A/en not_active Expired
- 1968-09-17 DE DE1774835A patent/DE1774835C3/de not_active Expired
- 1968-09-17 BE BE720994D patent/BE720994A/xx not_active IP Right Cessation
- 1968-09-18 NL NL6813349.A patent/NL157125B/xx not_active IP Right Cessation
- 1968-09-18 FR FR1582706D patent/FR1582706A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2548425A1 (fr) * | 1983-06-30 | 1985-01-04 | Lepage Joseph | Appareil de certification de bandes magnetiques |
Also Published As
Publication number | Publication date |
---|---|
NL157125B (nl) | 1978-06-15 |
BE720994A (fr) | 1969-03-03 |
DE1774835B2 (de) | 1973-09-20 |
NL6813349A (fr) | 1969-03-20 |
GB1242724A (en) | 1971-08-11 |
US3581297A (en) | 1971-05-25 |
DE1774835A1 (de) | 1972-03-23 |
DE1774835C3 (de) | 1974-04-25 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |