GB1368441A - Storing means for use with a magnetic tape for storing digital information - Google Patents

Storing means for use with a magnetic tape for storing digital information

Info

Publication number
GB1368441A
GB1368441A GB3295071A GB3295071A GB1368441A GB 1368441 A GB1368441 A GB 1368441A GB 3295071 A GB3295071 A GB 3295071A GB 3295071 A GB3295071 A GB 3295071A GB 1368441 A GB1368441 A GB 1368441A
Authority
GB
United Kingdom
Prior art keywords
perforations
marks
regions
spaces
data
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
Application number
GB3295071A
Inventor
K Schlickeiser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BUHMANN ELEKTRO APP WALTER
Original Assignee
BUHMANN ELEKTRO APP WALTER
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BUHMANN ELEKTRO APP WALTER filed Critical BUHMANN ELEKTRO APP WALTER
Publication of GB1368441A publication Critical patent/GB1368441A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/01—Details
    • G06K7/016—Synchronisation of sensing process
    • G06K7/0163—Synchronisation of sensing process by means of additional timing marks on the record-carrier
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/18—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier being longitudinally extended, e.g. punched tape
    • 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
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/20—Moving record carrier backwards or forwards by finite amounts, i.e. backspacing, forward spacing
    • 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
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed
    • G11B15/52—Controlling, regulating, or indicating speed by using signals recorded on, or derived from, record carrier
    • 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
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

1368441 Recording and playback; data storage WALTER BUHMANN ELEKTROAPPARATEBAU GmbH 14 July 1971 [14 July 1970] 32950/71 Headings G4C and G5R In an intermittent drive system employing a tape bearing a series of elongate marks in a control track, data is selectively stored in track areas either alongside the marks or alongside spaces between marks. In the arrangement shown, the marks are perforations 28 and data is stored either in constant tape speed regions B, Fig. 4, adjacent the perforations and between starting regions A and stopping regions C, or in constant speed regions B<SP>1</SP> adjacent spaces 36 and between starting/stopping regions A<SP>1</SP>, C<SP>1</SP>. The perforations are sensed by an optical system 29, and the heads 25 are enabled/disabled during the required periods by gating circuitry (Fig. 5, not shown), an inverting unit (54) effectively inverting the output of system 29 to make the perforations 28 appear to lie in the spaces 36 whenever recording in areas B<SP>1</SP> is required.
GB3295071A 1970-07-14 1971-07-14 Storing means for use with a magnetic tape for storing digital information Expired GB1368441A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702034836 DE2034836A1 (en) 1970-07-14 1970-07-14 Storage arrangement for digital information

Publications (1)

Publication Number Publication Date
GB1368441A true GB1368441A (en) 1974-09-25

Family

ID=5776703

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3295071A Expired GB1368441A (en) 1970-07-14 1971-07-14 Storing means for use with a magnetic tape for storing digital information

Country Status (7)

Country Link
US (1) US3772664A (en)
CH (1) CH530692A (en)
DE (1) DE2034836A1 (en)
FR (1) FR2101664A5 (en)
GB (1) GB1368441A (en)
NL (1) NL147557B (en)
SE (1) SE377506B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025957A (en) * 1974-10-15 1977-05-24 Kokusai Denshin Denwa Kabushiki Kaisha Magnetic recording system using magnetic tape
DE2841106B1 (en) * 1978-09-21 1979-11-29 Siemens Ag Method and circuit arrangement for shortening the information block gaps on the magnetic tape or for reducing the load on the drive system in magnetic tape devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3614757A (en) * 1961-06-28 1971-10-19 Photocircuits Corp Displacing apparatus
US3332084A (en) * 1963-01-07 1967-07-18 Cook Electric Co Incrementally driven recording apparatus
US3275208A (en) * 1964-09-14 1966-09-27 Potter Instrument Co Inc Incremental tape drive system
US3465128A (en) * 1964-09-21 1969-09-02 Potter Instrument Co Inc Readout system in incremental tape transport
US3617651A (en) * 1969-08-05 1971-11-02 Beltronix Systems Inc Device for recording on cardboard and like magnetic record media
US3631427A (en) * 1969-12-30 1971-12-28 Teletype Corp Incremental tape drive controlled by prerecorded clock track

Also Published As

Publication number Publication date
NL147557B (en) 1975-10-15
DE2034836A1 (en) 1972-01-20
NL7109231A (en) 1972-01-18
FR2101664A5 (en) 1972-03-31
CH530692A (en) 1972-11-15
US3772664A (en) 1973-11-13
SE377506B (en) 1975-07-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees