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公开(公告)号：NL2003543C
公开(公告)日：2011-01-25
申请号：NL2003543
申请日：2009-09-25
Applicant: APPLE INC
CPC classification number: G06F3/0416 , G02F1/13338 , G06F3/041 , G06F3/0412 , G06F3/0418 , G06F3/044 , G06F2203/04104
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公开(公告)号：NL2001670C2
公开(公告)日：2009-09-24
申请号：NL2001670
申请日：2008-06-11
Applicant: APPLE INC
Inventor： HOTELLING STEVE PORTER
IPC: G06F3/048
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公开(公告)号：HK1126557A1
公开(公告)日：2009-09-04
申请号：HK09104751
申请日：2009-05-26
Applicant: APPLE INC
Inventor： HOTELLING STEVE PORTER , LAND BRIAN RICHARDS
IPC: G06F20060101
Abstract: A multi-touch capacitive touch sensor panel can be created using a substrate with column and row traces formed on either side of the substrate. To shield the column (sense) traces from the effects of capacitive coupling from a modulated Vcom layer in an adjacent liquid crystal display (LCD) or any source of capacitive coupling, the row traces can be widened to shield the column traces, and the row traces can be placed closer to the LCD. In particular, the rows can be widened so that there is spacing of about 30 microns between adjacent row traces. In this manner, the row traces can serve the dual functions of driving the touch sensor panel, and also the function of shielding the more sensitive column (sense) traces from the effects of capacitive coupling.
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公开(公告)号：GB2451973A
公开(公告)日：2009-02-18
申请号：GB0819490
申请日：2007-04-05
Applicant: APPLE INC
Inventor： HOTELLING STEVE PORTER , HUPPI BRIAN QUENTIN , KRAH CHRISTOPH HORST
IPC: G06F3/044
Abstract: A multipoint touch surface controller is disclosed herein. The controller includes an integrated circuit including output circuitry for driving a capacitive multi-touch sensor and input circuitry for reading the sensor. Also disclosed herein are various noise rejection and dynamic range enhancement techniques that permit the controller to be used with various sensors in various conditions without reconfiguring hardware.
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公开(公告)号：DE102008028225A1
公开(公告)日：2008-12-18
申请号：DE102008028225
申请日：2008-06-13
Applicant: APPLE INC
Abstract: The use of multiple stimulation signals having one or more frequencies and one or more phases to generate an image of touch on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a column in a touch sensor panel and can have one or more mixers. Each mixer in the sense channel can utilize a circuit capable generating a demodulation frequency of a particular frequency. At each of multiple steps, various phases of one or more selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the one or more mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the one or more selected frequencies. After all steps have been completed, the demodulated signals from the one or more mixers can be used in calculations to determine an image of touch for the touch sensor panel at each of the one or more frequencies.
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Patent Agency Ranking
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公开(公告)号：CA2633408C
公开(公告)日：2013-08-13
申请号：CA2633408
申请日：2008-06-04
Applicant: APPLE INC
Abstract: The use of multiple stimulation frequencies and phases to generate an image of touch on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a column in a touch sensor panel and can have multiple mixers. Each mixer in the sense channel can utilize a circuit capable generating a demodulation frequency of a particular frequency. At each of multiple steps, various phases of selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the multiple mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the selected frequencies. After all steps have been completed, the demodulated signals from the multiple mixers can be used in calculations to determine an image of touch for the touch sensor panel at each frequency.
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38.发明专利
公开(公告)号：GB2490765A
公开(公告)日：2012-11-14
申请号：GB201206528
申请日：2008-05-15
Applicant: APPLE INC
Inventor： HOTELLING STEVE PORTER , LAND BRIAN RICHARDS
Abstract: A touch panel, comprises a plurality of transparent conductive material traces 410, 420 on a first surface of the touch panel; a plurality of metal traces 415a connected to the plurality of transparent conductive material traces; a plurality of low pass filters, each low pass filter comprising: a resistance 416a formed by a transparent conductive material resistor distinct from the plurality of transparent conductive material traces; and a capacitance (840) formed by an input capacitance of capacitance sensing circuitry (850) and a capacitance of a conductor connecting the transparent conductive material resistor to the capacitance sensing circuitry. Each transparent conductive material resistor is connected to at least one of the plurality of metal traces and in an electrical path between the at least one metal trace and the conductor connected to the capacitance sensing circuitry. The metal traces on the surface of the touch screen may be subject to radio-frequency interference (RFI) that can adversely affect the performance of the touch screen. The transparent conductive material resistors inserted within the metal trace paths form low-pass filters reduce the effect of the RFI.
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公开(公告)号：NL2003543C2
公开(公告)日：2011-01-25
申请号：NL2003543
申请日：2009-09-25
Applicant: APPLE INC
Abstract: The use of multiple stimulation signals having one or more frequencies and one or more phases to generate an image of touch on a touch sensor panel is disclosed. Each of a plurality of sense channels can be coupled to a column in a touch sensor panel and can have one or more mixers. Each mixer in the sense channel can utilize a circuit capable generating a demodulation frequency of a particular frequency. At each of multiple steps, various phases of one or more selected frequencies can be used to simultaneously stimulate the rows of the touch sensor panel, and the one or more mixers in each sense channel can be configured to demodulate the signal received from the column connected to each sense channel using the one or more selected frequencies. After all steps have been completed, the demodulated signals from the one or more mixers can be used in calculations to determine an image of touch for the touch sensor panel at each of the one or more frequencies.
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公开(公告)号：HK1140033A1
公开(公告)日：2010-09-30
申请号：HK10106237
申请日：2010-06-24
Applicant: APPLE INC
Inventor： HOTELLING STEVE PORTER , CHANG SHIH CHANG , HUANG LILI , ZHONG JOHN Z
IPC: G06F20060101
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