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1. (WO2001029759) POSITION SENSOR
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/029759 International Application No.: PCT/GB2000/004030
Publication Date: 26.04.2001 International Filing Date: 19.10.2000
Chapter 2 Demand Filed: 18.05.2001
IPC:
G01L 5/00 (2006.01) ,G01D 5/20 (2006.01) ,G06F 3/0354 (2013.01) ,G06F 3/041 (2006.01) ,G06F 3/046 (2006.01) ,H04M 1/00 (2006.01)
G PHYSICS
01
MEASURING; TESTING
L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
5
Apparatus for, or methods of, measuring force, e.g. due to impact, work, mechanical power, or torque, adapted for special purposes
G PHYSICS
01
MEASURING; TESTING
D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5
Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12
using electric or magnetic means
14
influencing the magnitude of a current or voltage
20
by varying inductance, e.g. by a movable armature
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
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
01
Input arrangements or combined input and output arrangements for interaction between user and computer
03
Arrangements for converting the position or the displacement of a member into a coded form
033
Pointing devices displaced or positioned by the user; Accessories therefor
0354
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
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
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
01
Input arrangements or combined input and output arrangements for interaction between user and computer
03
Arrangements for converting the position or the displacement of a member into a coded form
041
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
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
01
Input arrangements or combined input and output arrangements for interaction between user and computer
03
Arrangements for converting the position or the displacement of a member into a coded form
041
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
046
by electromagnetic means
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
M
TELEPHONIC COMMUNICATION
1
Substation equipment, e.g. for use by subscribers
Applicants:
ELY, David, Thomas, Eliot [GB/GB]; GB (UsOnly)
SYNAPTICS (UK) LIMITED [GB/GB]; Harston Mill Harston Cambridgeshire CB2 5NH, GB (AllExceptUS)
Inventors:
ELY, David, Thomas, Eliot; GB
Agent:
BERESFORD, Keith, Denis, Lewis ; Beresford & Co. 2-5 Warwick Court High Holborn London WC1R 5DH, GB
Priority Data:
0013882.607.06.2000GB
9924846.020.10.1999GB
Title (EN) POSITION SENSOR
(FR) CAPTEUR DE POSITION
Abstract:
(EN) A low cost x-y digitising system is described for use in consumer electronic devices, such as portable digital assistants, mobile telephones, web browsers and the like. The digitizer includes a resonant stylus, an excitation winding for energising the resonant stylus and a set of sensor windings for sensing the signal generated by the stylus, from which the x-y position of the stylus is determined. The excitation signals applied to the excitation winding are designed to reduce the power drawn from the power supply which makes the digitising system particularly suited to battery operation.
(FR) L'invention concerne un système de numérisation x-y à faible coût, utilisé dans des appareils électroniques de consommateur, tels que des assistants numériques portables, des téléphones portables, des navigateurs Internet et d'autres appareils du même type. Le numériseur comporte un palpeur de résonance, un bobinage d'excitation, afin de fournir de l'énergie au palpeur de résonance et un ensemble de bobinages de capteur, utilisé pour capter le signal produit par le palpeur, à partir duquel la position x-y du palpeur est déterminée. Les signaux d'excitation appliqués au bobinage d'excitation sont conçus de manière à réduire l'énergie puisée à la source d'alimentation, ce qui rend le système de numérisation particulièrement adapté au fonctionnement sur batterie.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)