FR2424601B1 - - Google Patents
Info
- Publication number
- FR2424601B1 FR2424601B1 FR7812118A FR7812118A FR2424601B1 FR 2424601 B1 FR2424601 B1 FR 2424601B1 FR 7812118 A FR7812118 A FR 7812118A FR 7812118 A FR7812118 A FR 7812118A FR 2424601 B1 FR2424601 B1 FR 2424601B1
- 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
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
- G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
-
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
- G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
- G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/027—Analogue recording
- G11B5/035—Equalising
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/20—Disc-shaped record carriers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Digital Magnetic Recording (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Manipulation Of Pulses (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7812118A FR2424601A1 (fr) | 1978-04-25 | 1978-04-25 | Procede d'asservissement du signal de lecture d'un support d'informations et dispositif pour le mettre en oeuvre |
GB7911976A GB2022886B (en) | 1978-04-25 | 1979-04-05 | Method of processing the read signal from a data carrier and arrangement for putting the method into practice |
IT22080/79A IT1112524B (it) | 1978-04-25 | 1979-04-23 | Procedimento d'asservimento del segnale di lettura d'un supporto d'informazioni,e dispositivo per attuarlo |
JP4918979A JPS54143611A (en) | 1978-04-25 | 1979-04-23 | Method of and device for tracting and controlling signal read from a data carrier |
DE19792916473 DE2916473A1 (de) | 1978-04-25 | 1979-04-24 | Regelverfahren fuer das auslesesignal eines informationstraegers und vorrichtung zur durchfuehrung des verfahrens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7812118A FR2424601A1 (fr) | 1978-04-25 | 1978-04-25 | Procede d'asservissement du signal de lecture d'un support d'informations et dispositif pour le mettre en oeuvre |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2424601A1 FR2424601A1 (fr) | 1979-11-23 |
FR2424601B1 true FR2424601B1 (enrdf_load_stackoverflow) | 1980-09-19 |
Family
ID=9207527
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7812118A Granted FR2424601A1 (fr) | 1978-04-25 | 1978-04-25 | Procede d'asservissement du signal de lecture d'un support d'informations et dispositif pour le mettre en oeuvre |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS54143611A (enrdf_load_stackoverflow) |
DE (1) | DE2916473A1 (enrdf_load_stackoverflow) |
FR (1) | FR2424601A1 (enrdf_load_stackoverflow) |
GB (1) | GB2022886B (enrdf_load_stackoverflow) |
IT (1) | IT1112524B (enrdf_load_stackoverflow) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4495528A (en) * | 1981-07-10 | 1985-01-22 | Victor Company Of Japan, Ltd. | Magnetic reproducing system for a digital signal |
JPS5963005A (ja) * | 1982-10-04 | 1984-04-10 | Toshiba Corp | 磁気記録方式 |
EP0219037B1 (en) * | 1985-10-08 | 1993-09-15 | Sharp Kabushiki Kaisha | Waveform processing circuit |
JPH02137169A (ja) * | 1988-11-17 | 1990-05-25 | Mitsubishi Electric Corp | 信号処理回路 |
JPH02166670A (ja) * | 1988-12-20 | 1990-06-27 | Tokico Ltd | 磁気ディスク装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4912645B1 (enrdf_load_stackoverflow) * | 1969-04-21 | 1974-03-26 | ||
US3593333A (en) * | 1969-11-26 | 1971-07-13 | Ibm | Position detection for a track following servo system |
US3660821A (en) * | 1970-06-17 | 1972-05-02 | Burroughs Corp | Disc file agc circuit |
US3691543A (en) * | 1971-02-08 | 1972-09-12 | Ibm | Positioning system including servo track configuration and associated demodulator |
US3840756A (en) * | 1973-02-05 | 1974-10-08 | Honeywell Inf Systems | Gain control circuit using sample and hold feedback |
US3902190A (en) * | 1973-11-23 | 1975-08-26 | Rca Corp | Programmable test of read/write circuitry by varying clipping levels |
US3879674A (en) * | 1973-12-27 | 1975-04-22 | Burroughs Corp | Automatic gain control circuit |
DE2601437A1 (de) * | 1976-01-16 | 1977-07-21 | Licentia Gmbh | Schaltung zur gewinnung einer regelspannung aus der ausgangsspannung eines tonfrequenz-verstaerkers fuer eine automatische verstaerkungsregelung |
FR2346806A1 (fr) * | 1976-03-31 | 1977-10-28 | Honeywell Bull Soc Ind | Mode d'ecriture d'adresses sur un support d'enregist rement magnetique |
-
1978
- 1978-04-25 FR FR7812118A patent/FR2424601A1/fr active Granted
-
1979
- 1979-04-05 GB GB7911976A patent/GB2022886B/en not_active Expired
- 1979-04-23 JP JP4918979A patent/JPS54143611A/ja active Granted
- 1979-04-23 IT IT22080/79A patent/IT1112524B/it active
- 1979-04-24 DE DE19792916473 patent/DE2916473A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
IT1112524B (it) | 1986-01-20 |
GB2022886B (en) | 1983-02-02 |
JPS54143611A (en) | 1979-11-09 |
DE2916473A1 (de) | 1979-10-31 |
IT7922080A0 (it) | 1979-04-23 |
DE2916473C2 (enrdf_load_stackoverflow) | 1988-08-11 |
JPH0135421B2 (enrdf_load_stackoverflow) | 1989-07-25 |
FR2424601A1 (fr) | 1979-11-23 |
GB2022886A (en) | 1979-12-19 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |