NL2001666C2 - Multiple simultaneous frequency detection. - Google Patents
Multiple simultaneous frequency detection. Download PDFInfo
- Publication number
- NL2001666C2 NL2001666C2 NL2001666A NL2001666A NL2001666C2 NL 2001666 C2 NL2001666 C2 NL 2001666C2 NL 2001666 A NL2001666 A NL 2001666A NL 2001666 A NL2001666 A NL 2001666A NL 2001666 C2 NL2001666 C2 NL 2001666C2
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- Netherlands
- Prior art keywords
- frequencies
- sensor panel
- touch sensor
- touch
- demodulation
- Prior art date
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- 230000000638 stimulation Effects 0.000 claims description 45
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Classifications
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- G—PHYSICS
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- 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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/13338—Input devices, e.g. touch panels
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- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing 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
- G06F3/03547—Touch pads, in which fingers can move on a surface
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- 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
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- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
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- G06F3/0412—Digitisers structurally integrated in a display
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- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- 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
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- 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
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- G—PHYSICS
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- 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
- G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
-
- 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
- G06F3/047—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using sets of wires, e.g. crossed wires
Claims (20)
1. Een werkwijze voor het verkrijgen van een aantal waarden dat wordt gebruikt om een aanrakingsbeeld te genereren van een aanraaksensor 5 paneel, omvattend: het simultaan toepassen van een aantal stimulatie frequenties omvattende zowel positieve en negatieve fases van tenminste een van de stimulatie frequenties op een aantal aandrijflijnen van het aanraaksensor paneel volgens een bepaalde verdeling; 10 het ontvangen van een signaal van ieder van een aantal waamemingslijnen van het aanraaksensor paneel in een ander waarnemingskanaal; het demoduleren van het in ieder waarnemingskanaal ontvangen signaal met een aantal demodulatie frequenties, waarbij de demodulatie 15 frequenties dezelfde frequenties zijn als de stimulatie frequenties, maar in fase; het accumuleren van de signalen die gedemoduleerd zijn met het aantal demodulatie frequenties in ieder waarnemingskanaal om een aantal waarden te genereren dat de geaccumuleerde gedemoduleerde 20 signalen representeert voor ieder waarnemingskanaal; en het opslaan van het aantal waarden voor alle waarnemingskanalen.
2. De werkwijze van conclusie 1, die verder het selecteren en gelijktijdig toepassen van meerdere unieke verdelingen van de veelheid van 25 stimulatiesignalen aan een meervoud van aandrijflijnen en het opslaan van meerdere aantallen waarden na het toepassen van elk van de meerdere unieke verdelingen.
3. De werkwijze van conclusie 2, die verder, voor iedere van het aantal 30 waamemingslijnen omvat, het berekenen en opslaan van een aandrijflijn resultaat voor iedere aandrijflijn en iedere van het aantal demodulatie 2001666 frequenties, waarbij meerdere aantallen waarden die zijn opgeslagen, worden gebruikt.
4. De werkwijze van conclusie 2, waarbij het aantal demodulatie frequenties, 5 geselecteerde lage ruis frequenties zijn.
5. De werkwijze van conclusie 1, die verder het verkrijgen van het aantal waarden omvat gedurende een verticale onderdrukkingsfase van een liquid crystal display (LCD), dat aan het aanraaksensor paneel grenst. 10
6. In een systeem dat een sensor paneel omvat met een aantal aandrijflijnen dat simultaan wordt aangedreven met een aantal stimulatie frequenties omvattende zowel positieve en negatieve fases van tenminste een van de stimulatie frequenties volgens een bepaalde verdeling, en waarin een 15 werkwijze voor het verkrijgen van een aantal waarden wordt gebruikt om een aanrakingsbeeld te genereren, omvat de werkwijze: het demoduleren van een waarnemingssignaal, dat op iedere waarnemingslijn van het sensor paneel wordt ontvangen, met een aantal demodulatie frequenties, waarbij de demodulatie frequenties dezelfde 20 frequenties zijn als de stimulatie frequenties, maar in fase; en het accumuleren van ieder van het aantal gedemoduleerde waamemingssignalen voor iedere waarnemingslijn, om het aantal waarden te genereren dat de geaccumuleerde gedemoduleerde waamemingssignalen representeert. 25
7. De werkwijze van conclusie 6, waarbij het aantal aandrijflijnen op het aanraaksensor paneel simultaan wordt aangedreven met een aantal stimulatie frequenties volgens meerdere unieke verdelingen in volgorde, waarbij de werkwijze verder omvat: het opslaan van meerdere aantallen waarden na het simultaan toepassen van het aantal stimulatie frequenties op het aantal aandrijflijnen van het aanraaksensor paneel, volgens meerdere unieke verdelingen. 5
8. De werkwijze van conclusie 7, die verder voor iedere van het aantal waamemingslijnen omvat, het berekenen en opslaan van een aandrijflijn resultaat voor iedere aandrijflijn en iedere van het aantal demodulatie frequenties, waarbij de opgeslagen meerdere aantallen waarden worden 10 gebruikt.
9. De werkwijze van conclusie 7, waarbij het aantal demodulatie frequenties, geselecteerde lage ruis frequenties zijn.
10. De werkwijze van conclusie 6, die verder het verkrijgen van het aantal waarden omvat, gedurende de verticale onderdrukkingsfase van een liquid crystal display (LCD), dat aan het aanraaksensor paneel grenst.
11. Een apparaat om een aantal waarden te verkrijgen dat wordt gebruikt om 20 een aanrakingsbeeld van een aanraaksensor paneel te genereren, omvattend: een aantal waarnemingskanalen, waarbij ieder waarnemingskanaal omvat een ladingsversterker die is geconfigureerd om een signaal te 25 ontvangen van een andere waamemingslijn van het aanraaksensor paneel, een aantal mixers dat is gekoppeld aan een output van de multiplexer, één frequentiegenerator circuit dat is gekoppeld aan iedere van 30 het aantal mixers om een demodulatie frequentie te genereren, en één accumulator, die is gekoppeld aan iedere van het aantal mixers om een waarde te genereren, die een geaccumuleerde mixer uitvoer representeert; waarbij ieder frequentie generator circuit in ieder 5 waarnemingskanaal, een andere demodulatie frequentie genereert, waarbij de verschillende demodulatie frequenties corresponderen met verschillende stimulatie frequenties omvattende zowel positieve en negatieve fases van tenminste een van de stimulatie frequenties die simultaan worden toegepast op aandrijflijnen van het aanraaksensor 10 paneel.
12. Het apparaat van conclusie 11, waarbij één of meer frequentiegenerator circuits een numeriek gecontroleerde oscillator (NCO) omvatten.
13. Het apparaat van conclusie 11, dat verder geheugen omvat om het aantal waarden op te slaan, dat gegenereerd is door ieder waarnemingskanaal.
14. Het apparaat van conclusie 13, dat verder een processor omvat voor het berekenen en opslaan van, voor ieder van het aantal waarnemingslijnen, 20 een aandrijflijn resultaat voor iedere aandrijflijn en ieder van het aantal demodulatie frequenties, waarbij het opgeslagen aantal waarden wordt gebruikt.
15. Een rekensysteem, dat het apparaat van conclusie 11 omvat. 25
16. Een mobiele telefoon, die het rekensysteem van conclusie 15 omvat.
17. Een digitale audio speler, die het rekensysteem van conclusie 15 omvat.
18. Een werkwijze voor het laten werken van een aanraakscherm, waarbij het aanraakscherm een aanraaksensor paneel en een display inrichting omvat, de werkwijze omvattend: het updaten van de display inrichting gedurende een actieve 5 periode van de display inrichting; en het verkrijgen van een aanrakingsbeeld van het aanraaksensor paneel gedurende een verticale onderdrukkingsfase van de display inrichting door gelijktijdig toepassen van een meervoud van stimulatiefrequenties op het aanraaksensor paneel, omvattende zowel 10 positieve als negatieve fases van tenminste één van de stimulatiefrequenties.
19. De werkwijze, van conclusie 18, waarbij de display inrichting een liquid crystal display (LCD) is. 15
32. Een mobiele telefoon, die een apparaat omvat om een aantal waarden te verkrijgen, dat wordt gebruikt om een aanrakingsbeeld van een aanraaksensor paneel te genereren, waarbij het apparaat omvat: een aantal waarnemingskanalen, waarbij ieder 20 waamemingskanaal omvat een ladingsversterker die is geconfigureerd om een signaal van een andere waarnemingslijn van het aanraaksensor paneel te ontvangen, een aantal mixers dat is gekoppeld aan een output van de 25 multiplexer, één frequentiegenerator circuit, dat is gekoppeld aan iedere van het aantal mixers om een demodulatie frequentie te genereren, en één accumulator, die is gekoppeld aan iedere van het aantal mixers om een waarde te genereren, die een geaccumuleerde mixer 30 uitvoer representeert; waarbij ieder frequentiegenerator circuit in ieder waarnemingskanaal een verschillende demodulatie frequentie genereert, en de verschillende demodulatie frequenties corresponderen met verschillende stimulatie frequenties omvattende zowel positieve 5 als negatieve fases van ten minste een van de stimulatie frequenties, die simultaan worden toegepast op aandrijflijnen van het aanraaksensor paneel. 2001666
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2003543A NL2003543C2 (en) | 2007-06-13 | 2009-09-25 | Multiple simultaneous frequency detection. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81834507 | 2007-06-13 | ||
US11/818,345 US8493331B2 (en) | 2007-06-13 | 2007-06-13 | Touch detection using multiple simultaneous frequencies |
Publications (2)
Publication Number | Publication Date |
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NL2001666A1 NL2001666A1 (nl) | 2008-12-16 |
NL2001666C2 true NL2001666C2 (nl) | 2009-10-05 |
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Family Applications (2)
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NL2001666A NL2001666C2 (nl) | 2007-06-13 | 2008-06-11 | Multiple simultaneous frequency detection. |
NL2003543A NL2003543C2 (en) | 2007-06-13 | 2009-09-25 | Multiple simultaneous frequency detection. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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NL2003543A NL2003543C2 (en) | 2007-06-13 | 2009-09-25 | Multiple simultaneous frequency detection. |
Country Status (12)
Country | Link |
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US (8) | US8493331B2 (nl) |
JP (3) | JP4938734B2 (nl) |
KR (1) | KR101009792B1 (nl) |
CN (2) | CN101324822B (nl) |
AU (1) | AU2008100548B4 (nl) |
CA (1) | CA2633408C (nl) |
DE (2) | DE102008028225A1 (nl) |
FR (1) | FR2917517B1 (nl) |
GB (1) | GB2450396B (nl) |
NL (2) | NL2001666C2 (nl) |
TW (1) | TWM363639U (nl) |
WO (1) | WO2008157245A2 (nl) |
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