GB1037633A - Improvements in information stores - Google Patents

Improvements in information stores

Info

Publication number
GB1037633A
GB1037633A GB2650362A GB2650362A GB1037633A GB 1037633 A GB1037633 A GB 1037633A GB 2650362 A GB2650362 A GB 2650362A GB 2650362 A GB2650362 A GB 2650362A GB 1037633 A GB1037633 A GB 1037633A
Authority
GB
United Kingdom
Prior art keywords
drive
lines
capacitive
july
sense lines
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
GB2650362A
Inventor
Antony Proudman
Stanley William Draper
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Priority to GB2650362A priority Critical patent/GB1037633A/en
Priority to DEJ24000A priority patent/DE1230465B/en
Priority to FR940770A priority patent/FR1375074A/en
Publication of GB1037633A publication Critical patent/GB1037633A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
    • G11C17/04—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using capacitive elements

Landscapes

  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Facsimile Heads (AREA)
  • Dot-Matrix Printers And Others (AREA)

Abstract

1,037,633. Permanent data stores. INTERNATIONAL BUSINESS MACHINES CORPORATION.. July 4, 1963 [July 10, 1962], No. 26503/62. Heading G4A. In a read-only memory capacitive couplings are formed between drive lines D1 to Dn and sense lines CP to CZ produced by photographic techniques on a sheet of epoxy-glass or paper. The sense lines are broad and where a capacitive connection is wanted the drive lines are broadened as at C1 to form the other electrode. The Specification also describes selection circuitry which is such that a drive line presents the same impedance to a drive pulse for any number of capacitive connections.
GB2650362A 1962-07-10 1962-07-10 Improvements in information stores Expired GB1037633A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2650362A GB1037633A (en) 1962-07-10 1962-07-10 Improvements in information stores
DEJ24000A DE1230465B (en) 1962-07-10 1963-07-03 Storage matrix with capacitors
FR940770A FR1375074A (en) 1962-07-10 1963-07-09 Permanent memories

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2650362A GB1037633A (en) 1962-07-10 1962-07-10 Improvements in information stores

Publications (1)

Publication Number Publication Date
GB1037633A true GB1037633A (en) 1966-08-03

Family

ID=10244688

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2650362A Expired GB1037633A (en) 1962-07-10 1962-07-10 Improvements in information stores

Country Status (2)

Country Link
DE (1) DE1230465B (en)
GB (1) GB1037633A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983000255A1 (en) * 1981-07-10 1983-01-20 Meyer, Peter A surface-bound digital information capacitive store and procedure for reading and re-coding the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3506969A (en) * 1967-04-04 1970-04-14 Ibm Balanced capacitor read only storage using a single balance line for the two drive lines and slotted capacitive plates to increase fringing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983000255A1 (en) * 1981-07-10 1983-01-20 Meyer, Peter A surface-bound digital information capacitive store and procedure for reading and re-coding the same

Also Published As

Publication number Publication date
DE1230465B (en) 1966-12-15

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