WO2001000003A3 - An improved touchpad - Google Patents

An improved touchpad Download PDF

Info

Publication number
WO2001000003A3
WO2001000003A3 PCT/US2000/017396 US0017396W WO0100003A3 WO 2001000003 A3 WO2001000003 A3 WO 2001000003A3 US 0017396 W US0017396 W US 0017396W WO 0100003 A3 WO0100003 A3 WO 0100003A3
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
touchpad
input
improved
enabling
Prior art date
Application number
PCT/US2000/017396
Other languages
French (fr)
Other versions
WO2001000003A2 (en
Inventor
George Gerpheide
Brian Taylor
Daniel Lee
Original Assignee
Cirque Corp
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 Cirque Corp filed Critical Cirque Corp
Priority to AU61999/00A priority Critical patent/AU6199900A/en
Publication of WO2001000003A2 publication Critical patent/WO2001000003A2/en
Publication of WO2001000003A3 publication Critical patent/WO2001000003A3/en

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
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer

Abstract

An improved touchpad and measurement circuitry for enabling input to a computer or other electronic device. The system includes an X electrode (1), and Y electrode (2), a common sensing electrode (3), and a water electrode (4), wherein these four separate electrodes can be implemented in various physical configurations to obtain the desired effects, wherein moisture and water droplets can be identified and compensated for so as not to interfere with the input of data, wherein noise rejection is achieved by using a time aperture filtering method, wherein an improved scanning technique focuses scanning around an identified input object, wherein an adaptive motion filter responds to the speed and acceleration of an object being tracked, and wherein the measurement circuitry has an increased dynamic ranged enabling the touchpad to operate with greater tolerances to manufacturing variances.
PCT/US2000/017396 1999-06-22 2000-06-22 An improved touchpad WO2001000003A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU61999/00A AU6199900A (en) 1999-06-22 2000-06-22 An improved touchpad having increased noise rejection, decreased moisture sensitivity, and improved tracking

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14037999P 1999-06-22 1999-06-22
US60/140,379 1999-06-22

Publications (2)

Publication Number Publication Date
WO2001000003A2 WO2001000003A2 (en) 2001-01-04
WO2001000003A3 true WO2001000003A3 (en) 2001-03-08

Family

ID=22490974

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/017396 WO2001000003A2 (en) 1999-06-22 2000-06-22 An improved touchpad

Country Status (2)

Country Link
AU (1) AU6199900A (en)
WO (1) WO2001000003A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4383683B2 (en) * 2001-03-12 2009-12-16 アルプス電気株式会社 Input device
JP4163054B2 (en) * 2003-06-23 2008-10-08 アルプス電気株式会社 Input device
FR2857113B1 (en) * 2003-07-01 2005-09-02 Tokheim Services France SECURE BOX COMPRISING A KEYBOARD FOR INTRODUCING CONFIDENTIAL DATA
KR102125605B1 (en) * 2006-06-09 2020-06-22 애플 인크. Touch screen liquid crystal display
CN104720913B (en) * 2013-12-19 2017-07-18 高露洁-棕榄公司 Electric toothbrush
US20150242115A1 (en) * 2014-02-21 2015-08-27 Qualcomm Incorporated Systems and methods for improved signal to noise ratio in touch systems

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327161A (en) * 1989-08-09 1994-07-05 Microtouch Systems, Inc. System and method for emulating a mouse input device with a touchpad input device
US5861583A (en) * 1992-06-08 1999-01-19 Synaptics, Incorporated Object position detector
US5880441A (en) * 1997-11-12 1999-03-09 National Presto Industries, Inc. Microwave beverage maker apparatus and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327161A (en) * 1989-08-09 1994-07-05 Microtouch Systems, Inc. System and method for emulating a mouse input device with a touchpad input device
US5861583A (en) * 1992-06-08 1999-01-19 Synaptics, Incorporated Object position detector
US5880441A (en) * 1997-11-12 1999-03-09 National Presto Industries, Inc. Microwave beverage maker apparatus and method

Also Published As

Publication number Publication date
AU6199900A (en) 2001-01-31
WO2001000003A2 (en) 2001-01-04

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