IT8049603A0 - Perfezionamento nei sistemi di registrazione di dati a nastro magnetico e nastro da impiegare in essi - Google Patents
Perfezionamento nei sistemi di registrazione di dati a nastro magnetico e nastro da impiegare in essiInfo
- Publication number
- IT8049603A0 IT8049603A0 IT8049603A IT4960380A IT8049603A0 IT 8049603 A0 IT8049603 A0 IT 8049603A0 IT 8049603 A IT8049603 A IT 8049603A IT 4960380 A IT4960380 A IT 4960380A IT 8049603 A0 IT8049603 A0 IT 8049603A0
- Authority
- IT
- Italy
- Prior art keywords
- tape
- improvement
- data recording
- recording systems
- magnetic tape
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/026—Control of operating function, e.g. switching from recording to reproducing by using processor, e.g. microcomputer
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/005—Programmed access in sequence to indexed parts of tracks of operating tapes, by driving or guiding the tape
-
- 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
- G11B27/107—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating tapes
-
- 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
- G11B27/11—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
- G11B27/13—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier the information being derived from movement of the record carrier, e.g. using tachometer
-
- 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
-
- 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
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5504—Track change, selection or acquisition by displacement of the head across tape tracks
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B2220/00—Record carriers by type
- G11B2220/90—Tape-like record carriers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Digital Magnetic Recording (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US7222979A | 1979-09-04 | 1979-09-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8049603A0 true IT8049603A0 (it) | 1980-09-03 |
IT1148267B IT1148267B (it) | 1986-11-26 |
Family
ID=22106345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT49603/80A IT1148267B (it) | 1979-09-04 | 1980-09-03 | Perfezionamento nei sistemi di registrazione di dati a nastro magnetico e nastro da impiegare in essi |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0035539B1 (it) |
JP (2) | JPH0666108B2 (it) |
BR (1) | BR8008815A (it) |
DE (1) | DE3072191D1 (it) |
IT (1) | IT1148267B (it) |
WO (1) | WO1981000782A1 (it) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4646175A (en) * | 1984-04-05 | 1987-02-24 | Irwin Magnetic Systems, Inc. | Method and apparatus for positioning transducers by digital conversion of analog-type signals |
US5452150A (en) * | 1994-06-27 | 1995-09-19 | Minnesota Mining And Manufacturing Company | Data cartridge with magnetic tape markers |
TW304261B (en) * | 1996-03-12 | 1997-05-01 | Ibm | Tape pre-formatting with uniform data storage segments selectively mapped to fixed or variable sized independently addressable data storage partitions |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2668059A (en) * | 1947-04-26 | 1954-02-02 | Int Electronics Co | Equipment for use with multitrack magnetic tape records |
US3088101A (en) * | 1957-11-07 | 1963-04-30 | Honeywell Regulator Co | Electrical apparatus for certifying magnetic tape |
US3192509A (en) * | 1961-05-16 | 1965-06-29 | Honeywell Inc | Zone indicating and identification storing apparatus for recording tape |
JPS438994Y1 (it) * | 1964-11-21 | 1968-04-19 | ||
US3423743A (en) * | 1964-11-27 | 1969-01-21 | Daniel Silverman | Random access magnetic tape memory system |
US3541271A (en) * | 1967-10-30 | 1970-11-17 | Chester Electronic Lab Inc | Dial operated search control for tape recorder |
US3587180A (en) * | 1969-08-04 | 1971-06-28 | Sueddeutche Mechanische Werkst | Educational device for programmed instruction |
US3623039A (en) * | 1970-05-08 | 1971-11-23 | James E Barham | Magnetic tape system having mark code in the form of coincident absence of clock and presence of data pulses |
US3692255A (en) * | 1971-06-17 | 1972-09-19 | Minnesota Mining & Mfg | Belt driven tape cartridge |
US3804993A (en) * | 1972-07-03 | 1974-04-16 | Bell Telephone Labor Inc | Logic controlled audio tape information system |
US3869719A (en) * | 1973-03-23 | 1975-03-04 | Int Tapetronics Corp | Automatic sequence control for reproducing apparatus |
US3916440A (en) * | 1974-12-23 | 1975-10-28 | Ibm | Resynchronizable phase-encoded recording |
US3994014A (en) * | 1975-12-10 | 1976-11-23 | Corning Glass Works | Circuit for rewriting blocks of phase encoded data |
US4054926A (en) * | 1976-02-11 | 1977-10-18 | Paul Jeffries Haynes | Device for automatic program selection on prerecorded magnetic tape |
US4081844A (en) * | 1976-08-02 | 1978-03-28 | International Business Machines Corporation | Interleaved synch and beginning of data indicators |
JPS5482217A (en) * | 1977-12-13 | 1979-06-30 | Mitsubishi Electric Corp | Pcm recorder and reproducer |
DE2756610A1 (de) * | 1977-12-19 | 1979-06-21 | Stoeckigt Gerhard Dipl Wirtsch | Anordnung zum auffinden beliebiger positionen auf einem magnetband |
US4200893A (en) * | 1978-05-17 | 1980-04-29 | Dictaphone Corporation | Instruction indicating apparatus for a record and/or playback device |
US4321632A (en) * | 1979-06-01 | 1982-03-23 | Digital Equipment Corporation | Positioning system and formatting scheme for magnetic tape media |
-
1980
- 1980-08-22 DE DE8080901782T patent/DE3072191D1/de not_active Expired - Lifetime
- 1980-08-22 WO PCT/US1980/001086 patent/WO1981000782A1/en active IP Right Grant
- 1980-08-22 JP JP55502102A patent/JPH0666108B2/ja not_active Expired - Lifetime
- 1980-08-22 BR BR8008815A patent/BR8008815A/pt not_active IP Right Cessation
- 1980-09-03 IT IT49603/80A patent/IT1148267B/it active
-
1981
- 1981-03-23 EP EP80901782A patent/EP0035539B1/en not_active Expired - Lifetime
-
1987
- 1987-08-21 JP JP62208039A patent/JPS6379224A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
EP0035539A4 (en) | 1982-01-26 |
DE3072191D1 (de) | 1991-04-18 |
IT1148267B (it) | 1986-11-26 |
JPH0346886B2 (it) | 1991-07-17 |
WO1981000782A1 (en) | 1981-03-19 |
JPH0666108B2 (ja) | 1994-08-24 |
EP0035539B1 (en) | 1991-03-13 |
JPS6379224A (ja) | 1988-04-09 |
BR8008815A (pt) | 1981-06-23 |
EP0035539A1 (en) | 1981-09-16 |
JPS56501221A (it) | 1981-08-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT1090438B (it) | Perfezionamento nei sistemi elaboratori di dati | |
IT1083494B (it) | Perfezionamento nei sistemi di registrazione e riproduzione di dati in particolare nelle disposizioni di posizionamento dei trasduttori sui supporti di registrazione | |
IT1128170B (it) | Perfezionamento nei registratori di dati su nastro magnetico cartuccia in particolare nei meccanismi di posizionamento della testina | |
FR2539542B1 (fr) | Tete magnetique de lecture | |
IT1080035B (it) | Perfezionamento nei sistemi per la registrazione e la riproduzione di dati su nastro magnetico in particolare per regolare la posizione del trasduttore rispetto alla traccia | |
AU3020977A (en) | Information recording and recognition | |
BR8003374A (pt) | Aparelho de gravacao e/ou reproducao em fita magnetica | |
JPS5580807A (en) | Multiple track magnetic reading head | |
DK149355C (da) | Registrerings- og/eller gengivelsesapparat til magnetbaandkassette | |
IT8147672A0 (it) | Apparecchio di compensazione di caduta del segnale in sistemi di registrazione e riproduzione di informazioni | |
GB2020858B (en) | Record track identification and following | |
DE3164649D1 (en) | Magnetic head with variable track-width for writing or reading magnetic data | |
IT1080017B (it) | Perfezionamento nei sistemi per la trasmissione di dati | |
IT8049604A0 (it) | Perfezionamento nelle testine magnetiche composite di registrazione e lettura | |
GB2021837B (en) | Read/write magnetic head with compound-foil | |
IT7947852A0 (it) | Perfezionamento nei sistemi di trascinamento in apparecchi di registrazione e riproduzione a nastro | |
GB1549191A (en) | Data handling and storage | |
IT1083488B (it) | Perfezionamento nei sistemi di registrazione/riproduzione in particolare in dispositivi di alineamento fra trasduttore e supporto di registrazione | |
DE3382456D1 (de) | Spulenservosystem in einem aufzeichnungs- und/oder wiedergabegeraet. | |
GB2035659B (en) | Reading secure magnetic documents | |
GB2077987B (en) | Magnetic card recording and/or reproducing apparatus | |
IT8049603A0 (it) | Perfezionamento nei sistemi di registrazione di dati a nastro magnetico e nastro da impiegare in essi | |
GB2014347B (en) | Recording methods for magnetic tapes attached to cards and such cards | |
GB2039194B (en) | Data recovery in magnetic tape reader | |
ATA291978A (de) | In querrichtung abtastender magnetischer band- aufnahme-und/oder bandwiedergabeapparat |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19940928 |