GB1536123A - Position sensing apparatus - Google Patents

Position sensing apparatus

Info

Publication number
GB1536123A
GB1536123A GB4817375A GB4817375A GB1536123A GB 1536123 A GB1536123 A GB 1536123A GB 4817375 A GB4817375 A GB 4817375A GB 4817375 A GB4817375 A GB 4817375A GB 1536123 A GB1536123 A GB 1536123A
Authority
GB
United Kingdom
Prior art keywords
pen
ordinates
coils
eye
piece
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
GB4817375A
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 GB4817375A priority Critical patent/GB1536123A/en
Publication of GB1536123A publication Critical patent/GB1536123A/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)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

1536123 Measuring co-ordinates electrically E HOWBROOK 22 Feb 1977 [24 Nov 1975] 48173/75 Heading G1N Apparatus for determining the co-ordinates of points on a writing surface comprises an A.C.- energized circular coil 10, Fig. 4, carried by an eye-piece 20 or a pen and two groups 22, 23 of elongate pick-up coils 11, located under the writing surface 21, whose induced voltages form phase-characterized signals representing the x, y co-ordinates of the eye-piece 20 or pen. A writing pen 30 (Fig. 6) may carry two coils 10A, 10B at known distances R A , R B along the pen, energized alternatively, and the pick-up signals combined to compensate for tilt of the pen.
GB4817375A 1977-02-22 1977-02-22 Position sensing apparatus Expired GB1536123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4817375A GB1536123A (en) 1977-02-22 1977-02-22 Position sensing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4817375A GB1536123A (en) 1977-02-22 1977-02-22 Position sensing apparatus

Publications (1)

Publication Number Publication Date
GB1536123A true GB1536123A (en) 1978-12-20

Family

ID=10447655

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4817375A Expired GB1536123A (en) 1977-02-22 1977-02-22 Position sensing apparatus

Country Status (1)

Country Link
GB (1) GB1536123A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012138A1 (en) * 1978-12-13 1980-06-25 Control Tele-Systems Limited Position sensing apparatus
GB2117154A (en) * 1982-03-17 1983-10-05 Nigel Geoffrey Ley Hand-written character recognition device
GB2148041A (en) * 1983-10-26 1985-05-22 Sharp Kk Display systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012138A1 (en) * 1978-12-13 1980-06-25 Control Tele-Systems Limited Position sensing apparatus
GB2117154A (en) * 1982-03-17 1983-10-05 Nigel Geoffrey Ley Hand-written character recognition device
GB2148041A (en) * 1983-10-26 1985-05-22 Sharp Kk Display systems

Similar Documents

Publication Publication Date Title
IT1121025B (en) MAGNETIC BASE FOR THE SUPPORT OF A MEASURING INSTRUMENT SUCH AS AN EXTENSIMETER
IT7829878A0 (en) SELF-STAINING PLATFORM INCLUDING AT LEAST ONE MAGNETIC TRANSDUCER FOR READING/WRITING OF AN INFORMATION MEDIA.
EP0145836A3 (en) Distance measuring interferometer and method of use
EP0166510A3 (en) A method for determining the far field signature of a marine seismic source from near-field measurements
ATA176882A (en) DEVICE FOR PLAYING AN INFORMATION SIGNAL
AT367915B (en) MEASURING PROBE FOR MEASURING AN EXTERNAL MAGNETIC FIELD
ATA657879A (en) DEVICE FOR REGISTERING INFORMATION AND TRACKING SIGNALS GUIDING THIS METHOD
GB2179147A (en) Improvements relating to eye-gaze-direction controlled apparatus
FR2339231A1 (en) PNEUMATIC DRIVE DEVICE FOR EDDY CURRENT MEASURING PROBES
GB552675A (en) Improvements in or relating to apparatus for measuring or indicating the shape of a surface or the degree of roughness thereof
GB2060839B (en) Device for increasing the tracking accuracy of an aiming system
DK0532604T3 (en) Sub-audio magnetic instrument
GB1536123A (en) Position sensing apparatus
ATE116431T1 (en) POSITION COMPENSATION WINCH FOR TRANSDUCERS.
ES8609737A1 (en) Color display of related parameters.
GB2009409A (en) Measuring and recording surface profile
DE3363586D1 (en) Apparatus for determining a coordinate position on an information display surface
ATA484577A (en) DEVICE FOR RECORDING AN INFORMATION SIGNAL
ATE76189T1 (en) MEASUREMENT ARRANGEMENT.
JPS55109977A (en) Detecting method for underground body
JPS5333595A (en) Standard range position for distance measuring system
IT1129630B (en) FOUCAULT LINEAR CURRENT DIFFERENTIAL SENSOR FOR MEASURING SMALL MOVEMENTS OF A METAL BODY
DD136307A5 (en) DEVICE FOR ADJUSTING (LEVELING) A SEARCH SCOPE
SU693283A1 (en) Device for continuously measuring magnetic susceptibility
SU712645A1 (en) Device for checking the thickness of etched metal layer at making wedge-shaped articles

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)
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)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19970221