GB1213310A - A method of and apparatus for writing digital data on magnetic tape with uniform packing density - Google Patents

A method of and apparatus for writing digital data on magnetic tape with uniform packing density

Info

Publication number
GB1213310A
GB1213310A GB5257067A GB5257067A GB1213310A GB 1213310 A GB1213310 A GB 1213310A GB 5257067 A GB5257067 A GB 5257067A GB 5257067 A GB5257067 A GB 5257067A GB 1213310 A GB1213310 A GB 1213310A
Authority
GB
United Kingdom
Prior art keywords
packing density
digital data
magnetic tape
uniform packing
writing digital
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
GB5257067A
Inventor
John Stanley Smith
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB5257067A priority Critical patent/GB1213310A/en
Publication of GB1213310A publication Critical patent/GB1213310A/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
    • G06K1/00—Methods or arrangements for marking the record carrier in digital fashion

Abstract

1,213,310. Magnetic tape data storage. J. S. SMITH. 10 Feb., 1969 [18 Nov., 1967], No. 52570/67. Heading G4C. Digital data is recorded on tape (e.g. magnetic) when a voltage proportional to tape speed has integrated to a predetermined level, the integrator being reset, for uniform packing density. The level may be adjustable, or an adjustable attenuator may precede the integrator, for packing density selection.
GB5257067A 1967-11-18 1967-11-18 A method of and apparatus for writing digital data on magnetic tape with uniform packing density Expired GB1213310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5257067A GB1213310A (en) 1967-11-18 1967-11-18 A method of and apparatus for writing digital data on magnetic tape with uniform packing density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5257067A GB1213310A (en) 1967-11-18 1967-11-18 A method of and apparatus for writing digital data on magnetic tape with uniform packing density

Publications (1)

Publication Number Publication Date
GB1213310A true GB1213310A (en) 1970-11-25

Family

ID=10464431

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5257067A Expired GB1213310A (en) 1967-11-18 1967-11-18 A method of and apparatus for writing digital data on magnetic tape with uniform packing density

Country Status (1)

Country Link
GB (1) GB1213310A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2208158A1 (en) * 1972-11-30 1974-06-21 Bertin & Cie

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2208158A1 (en) * 1972-11-30 1974-06-21 Bertin & Cie

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees