GB1340522A - Apparatus for converting graphical information into co-ordinate data - Google Patents

Apparatus for converting graphical information into co-ordinate data

Info

Publication number
GB1340522A
GB1340522A GB1340522DA GB1340522A GB 1340522 A GB1340522 A GB 1340522A GB 1340522D A GB1340522D A GB 1340522DA GB 1340522 A GB1340522 A GB 1340522A
Authority
GB
United Kingdom
Prior art keywords
graphical information
ordinate data
converting graphical
jan
probe
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
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.)
QUEST AUTOMATION
Quest Automation Ltd
Original Assignee
QUEST AUTOMATION
Quest Automation Ltd
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 QUEST AUTOMATION, Quest Automation Ltd filed Critical QUEST AUTOMATION
Publication of GB1340522A publication Critical patent/GB1340522A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Abstract

1340522 Stylus QUEST AUTOMATION Ltd 14 Jan 1971 [8 Jan 1970] 995/70 Heading B6P [Also in Divisions G4 H4 and H1] A probe 4 comprises a hollow, non-metallic body 5 in which is located a core 11 biased towards the tip of the probe by a spring 18. Downward pressure on the body 5 causes a pencil lead 16 to move inwardly of the body thus compressing the spring 18 and allowing a magnet 12 to reach a position in which it closes a switch 8.
GB1340522D 1971-01-14 1971-01-14 Apparatus for converting graphical information into co-ordinate data Expired GB1340522A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB99570 1971-01-14

Publications (1)

Publication Number Publication Date
GB1340522A true GB1340522A (en) 1973-12-12

Family

ID=9714175

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1340522D Expired GB1340522A (en) 1971-01-14 1971-01-14 Apparatus for converting graphical information into co-ordinate data

Country Status (1)

Country Link
GB (1) GB1340522A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2298080A1 (en) * 1975-01-20 1976-08-13 Ceskoslovenska Akademie Ved PR
DE2622941A1 (en) * 1975-05-23 1976-12-09 Seiko Instr & Electronics DEVICE FOR SCANNING THE COORDINATES OF A FONT IMAGE
EP0012138A1 (en) * 1978-12-13 1980-06-25 Control Tele-Systems Limited Position sensing apparatus
US4240065A (en) * 1978-12-13 1980-12-16 Wigmore Professional Data Services Ltd. Position sensing apparatus
GB2140562A (en) * 1983-04-22 1984-11-28 Robert John Collins Current-ratio digitisers
EP0587200A1 (en) * 1986-09-12 1994-03-16 Wacom Company, Ltd. Position detecting apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2298080A1 (en) * 1975-01-20 1976-08-13 Ceskoslovenska Akademie Ved PR
DE2622941A1 (en) * 1975-05-23 1976-12-09 Seiko Instr & Electronics DEVICE FOR SCANNING THE COORDINATES OF A FONT IMAGE
FR2312012A1 (en) * 1975-05-23 1976-12-17 Seiko Instr & Electronics AUTOMATIC DEVICE DETERMINING POSITION COORDINATES
EP0012138A1 (en) * 1978-12-13 1980-06-25 Control Tele-Systems Limited Position sensing apparatus
US4240065A (en) * 1978-12-13 1980-12-16 Wigmore Professional Data Services Ltd. Position sensing apparatus
GB2140562A (en) * 1983-04-22 1984-11-28 Robert John Collins Current-ratio digitisers
EP0587200A1 (en) * 1986-09-12 1994-03-16 Wacom Company, Ltd. Position detecting apparatus

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee