GB1376742A - Position resolvers - Google Patents

Position resolvers

Info

Publication number
GB1376742A
GB1376742A GB222371A GB222371A GB1376742A GB 1376742 A GB1376742 A GB 1376742A GB 222371 A GB222371 A GB 222371A GB 222371 A GB222371 A GB 222371A GB 1376742 A GB1376742 A GB 1376742A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
light
direction
member
embodiment
position
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
GB222371A
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.)
BAE Systems Electronics Ltd
Original Assignee
BAE Systems Electronics 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

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/0304Detection arrangements using opto-electronic means
    • G06F3/0317Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/0304Detection arrangements using opto-electronic means
    • G06F3/0317Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface
    • G06F3/0321Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface by optically sensing the absolute position with respect to a regularly patterned surface forming a passive digitiser, e.g. pen optically detecting position indicative tags printed on a paper sheet
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03542Light pens for emitting or receiving light

Abstract

1376742 Detecting position MARCONI CO Ltd 26 Oct 1971 [16 Jan 1971] 2223/71 Heading G4H The position of a member movable over a co-ordinate array of strips is determined by detecting movement of the member by an optical sensor. In the embodiment of Figs. 1 and 2, in which lines are painted, etched or scratched on or wires are positioned on or embedded in for example a glass plate 1, the member is a light pen 4 and the optical sensor comprises two photo-cells 5, 6; 7, 8 for each co-ordinate direction X, Y. The photo detectors are connected to circuits 10, 11, 14, 15 arranged to detect the direction of movement in accordance with which detector in each pair is first energized as a line is crossed by the pen, the circuits pulsing add or subtract inputs of X, Y counters to give binary coded counts representing the position of the member. In the embodiment of Fig. 3 (not shown) the lines comprise strips reflecting (for the X direction), blue and green light and (for the Y direction), green and red light. The pen comprises two bundles of light fibres, one leading to a light source and one to photo detectors responsive to blue, green and red light. The detectors are connected to logic circuitry so that as in the embodiment of Figs. 1 and 2, the amount and sense of movement may be represented by the count in two counters. In a modification of this embodiment the lines consist of strips reflecting green and all light and red and all light so that only two photo detectors are necessary. Instead of utilizing two bundles of light fibres, light may be transmitted from a source (20, Fig. 10, not -shown), through a semisilvered mirror (53) on to a light guide (18) connected to the movable member and light from the guide is reflected by the mirror to a photo detector assembly (21). The bundle may consist of a central fibre surrounded by six fibres placed at the corners of a hexagon, the six outer fibres being used for illumination and the inner fibre for carrying the reflected light to the detectors. Dichroic filter mirrors may be used to separate the colours in the reflected light. In an alternative embodiment (Fig. 13, not shown), each line is of coded form comprising a stripe (57) reflecting all light and a plurality of stripes (58-61) reflecting (for the X direction) red light and (for the Y direction) green light. The first and last stripes (47, 61) are wider than the rest. The strips may be so positioned that as they are scanned the pulses between the wide pulses represent the position of the member in binary form.
GB222371A 1971-10-26 1971-10-26 Position resolvers Expired GB1376742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB222371A GB1376742A (en) 1971-10-26 1971-10-26 Position resolvers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB222371A GB1376742A (en) 1971-10-26 1971-10-26 Position resolvers

Publications (1)

Publication Number Publication Date
GB1376742A true true GB1376742A (en) 1974-12-11

Family

ID=9735763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB222371A Expired GB1376742A (en) 1971-10-26 1971-10-26 Position resolvers

Country Status (1)

Country Link
GB (1) GB1376742A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0078809A1 (en) * 1981-05-18 1983-05-18 Steven T Kirsch Electro-optical mouse.
EP0148841A1 (en) * 1983-06-24 1985-07-24 Mouse Systems Corp Detector for electro-optical mouse.
US4687980A (en) * 1980-10-20 1987-08-18 Eaton Corporation X-Y addressable workpiece positioner and mask aligner using same
GB2208734A (en) * 1985-11-05 1989-04-12 Nat Res Dev Apparatus for capturing information in drawing or writing
EP0382351A2 (en) * 1989-02-10 1990-08-16 Hewlett-Packard Company Cursor control mechanism
US4963859A (en) * 1987-02-02 1990-10-16 National Research Development Corporation Method and apparatus for capturing information in drawing or writing
US4977361A (en) * 1978-06-26 1990-12-11 Eaton Corporation X-Y addressable workpiece positioner and mask aligner using same
EP0407734A1 (en) * 1989-06-28 1991-01-16 International Business Machines Corporation Optical stylus and passive digitizing tablet data input system
US5027414A (en) * 1987-01-20 1991-06-25 National Research Development Corporation Method and apparatus for capturing information in drawing or writing
US5107541A (en) * 1985-11-05 1992-04-21 National Research Development Corporation Method and apparatus for capturing information in drawing or writing
DE4034013A1 (en) * 1990-09-17 1992-04-30 Liou Kwang Wan Optical encoding method and associated apparatus
WO1999049304A1 (en) * 1998-03-25 1999-09-30 Lasor Ag Method and device for detecting faults in flat glass, especially drips, threads and lines
WO1999049303A1 (en) * 1998-03-25 1999-09-30 Lasor Ag Method and device for detecting faults in flat glass

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4977361A (en) * 1978-06-26 1990-12-11 Eaton Corporation X-Y addressable workpiece positioner and mask aligner using same
US4687980A (en) * 1980-10-20 1987-08-18 Eaton Corporation X-Y addressable workpiece positioner and mask aligner using same
EP0078809A1 (en) * 1981-05-18 1983-05-18 Steven T Kirsch Electro-optical mouse.
EP0078809A4 (en) * 1981-05-18 1985-10-14 Steven T Kirsch Electro-optical mouse.
EP0148841A4 (en) * 1983-06-24 1988-06-20 Mouse Systems Corp Detector for electro-optical mouse.
EP0148841A1 (en) * 1983-06-24 1985-07-24 Mouse Systems Corp Detector for electro-optical mouse.
GB2208734A (en) * 1985-11-05 1989-04-12 Nat Res Dev Apparatus for capturing information in drawing or writing
US5107541A (en) * 1985-11-05 1992-04-21 National Research Development Corporation Method and apparatus for capturing information in drawing or writing
GB2208734B (en) * 1985-11-05 1990-11-07 Nat Res Dev Apparatus for capturing information in drawing or writing
US5027414A (en) * 1987-01-20 1991-06-25 National Research Development Corporation Method and apparatus for capturing information in drawing or writing
US4963859A (en) * 1987-02-02 1990-10-16 National Research Development Corporation Method and apparatus for capturing information in drawing or writing
EP0382351A3 (en) * 1989-02-10 1991-06-19 Hewlett-Packard Company Cursor control mechanism
EP0382351A2 (en) * 1989-02-10 1990-08-16 Hewlett-Packard Company Cursor control mechanism
EP0407734A1 (en) * 1989-06-28 1991-01-16 International Business Machines Corporation Optical stylus and passive digitizing tablet data input system
DE4034013A1 (en) * 1990-09-17 1992-04-30 Liou Kwang Wan Optical encoding method and associated apparatus
WO1999049304A1 (en) * 1998-03-25 1999-09-30 Lasor Ag Method and device for detecting faults in flat glass, especially drips, threads and lines
WO1999049303A1 (en) * 1998-03-25 1999-09-30 Lasor Ag Method and device for detecting faults in flat glass

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee