GB1348378A - Apparatus providing signals corresponding to the position of points on a surface - Google Patents

Apparatus providing signals corresponding to the position of points on a surface

Info

Publication number
GB1348378A
GB1348378A GB1348378DA GB1348378A GB 1348378 A GB1348378 A GB 1348378A GB 1348378D A GB1348378D A GB 1348378DA GB 1348378 A GB1348378 A GB 1348378A
Authority
GB
United Kingdom
Prior art keywords
ordinates
pair
points
signals corresponding
elements
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.)
Pullan B R
Original Assignee
Pullan B R
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 Pullan B R filed Critical Pullan B R
Publication of GB1348378A publication Critical patent/GB1348378A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/004—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring coordinates of points
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/22—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using plotters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

1348378 Determining co-ordinates electrically B R PULLAN and C J TAYLOR 13 Dec 1971 [18 Sept 1970] 44581/70 Heading G1N An electrographic tablet comprises a sheet exhibiting high resistivity bonded by conductive elements 4/1, 4/2, 4/3, 4/4, and means for supplying a potential difference alternately between the pair 4/1, 4/2, and the pair 4/3, 4/4. As shown the four elements are in the form of a square, and the supply is switched by relays 7/1, 7/2 so that substantially equipotential parallel lines 8, 9 are alternately obtained. A stylus 11 contacting the tablet provides a two-level output signal whose two levels are indicative of the co-ordinates of the point of contact. This signal is fed to a computer 13. The conductive sheet may be tin oxide on glass or Teledeltos (RTM) paper.
GB1348378D 1970-09-18 1970-09-18 Apparatus providing signals corresponding to the position of points on a surface Expired GB1348378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4458170 1970-09-18

Publications (1)

Publication Number Publication Date
GB1348378A true GB1348378A (en) 1974-03-13

Family

ID=10433952

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1348378D Expired GB1348378A (en) 1970-09-18 1970-09-18 Apparatus providing signals corresponding to the position of points on a surface

Country Status (1)

Country Link
GB (1) GB1348378A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132770A (en) * 1982-12-10 1984-07-11 Peter Verschoor Method and device for measuring sets from a drawing
GB2273163A (en) * 1992-12-03 1994-06-08 John Reuben Marshall Cursor control device
DE19643495A1 (en) * 1996-10-22 1998-04-30 Peter Dr Ing Scholz Angular position determination, or its change, for direction indicator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132770A (en) * 1982-12-10 1984-07-11 Peter Verschoor Method and device for measuring sets from a drawing
GB2273163A (en) * 1992-12-03 1994-06-08 John Reuben Marshall Cursor control device
DE19643495A1 (en) * 1996-10-22 1998-04-30 Peter Dr Ing Scholz Angular position determination, or its change, for direction indicator
DE19643495C2 (en) * 1996-10-22 2000-04-27 Peter Scholz Device for detecting an angular position of a direction indicator

Similar Documents

Publication Publication Date Title
GB1362166A (en) Electrographic sensor for determining planar coordinates
GB1311122A (en) Electrographic imaging apparatus
ES375112A1 (en) Graphic data transcription system
GB1278029A (en) Position transducing system
GB1348378A (en) Apparatus providing signals corresponding to the position of points on a surface
ES8102360A1 (en) Method and apparatus for measuring the resistivity of fluids in a borehole.
JPS564885A (en) Coordinate input unit
GB1043298A (en) Electrostatic paper holding arrangements
GB910492A (en) Improvements in interpolation devices
GB1279984A (en) Improvements in and relating to capacitive transducers
GB1073347A (en) Improvements in or relating to elasto-resistive elements
GB1331030A (en) Printer
GB1410015A (en) Record transcription devices
JPS63278284A (en) Two-dimensional light-position detection device
GB1180016A (en) Method and Apparatus for Improving Moisture Gauge Response.
GB1306099A (en)
GB1232987A (en)
GB1092913A (en) Apparatus for electrostatic printing
CH463826A (en) Measuring arrangement for measuring electrical potential differences in an electrically conductive liquid
GB1396114A (en) Stylus
GB1321831A (en) Positional transducers
JPS5533290A (en) Handwriting information input tablet and coordinate detecting method
GB1359137A (en) Developing machine
GB1120526A (en) Improvements in or relating to electrical position resolvers and arrangements incorporating the same
JPS5433725A (en) Electrostatic recording system

Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PLNP Patent lapsed through nonpayment of renewal fees