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公开(公告)号：US10061449B2
公开(公告)日：2018-08-28
申请号：US14869980
申请日：2015-09-29
Applicant: Apple Inc.
Inventor： Vivek Pant , Shahrooz Shahparnia , Marduke Yousefpor , Christoph H. Krah
CPC classification number: G06F3/044 , G06F1/3215 , G06F1/3262 , G06F3/0416 , G06F2203/04101
Abstract: Power consumption of touch sensing operations for touch sensitive devices can be reduced by implementing a coarse scan (e.g., banked common mode scan) to coarsely detect the presence or absence of an object touching or proximate to a touch sensor panel and the results of the coarse scan can be used to dynamically adjust the operation of the touch sensitive device to perform or not perform a fine scan (e.g., targeted active mode scan). In some examples, the results of the coarse scan can be used to program a touch controller for the next touch sensing frame to idle when no touch event is detected or to perform a fine scan when one or more touch events are detected. In some examples, the results of the coarse scan can be used to abort a scheduled fine scan during the current touch sensing frame when no touch event is detected.
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公开(公告)号：US10042472B2
公开(公告)日：2018-08-07
申请号：US15658314
申请日：2017-07-24
Applicant: Apple Inc.
CPC classification number: G06F3/0416 , G06F3/044 , G06F2203/04104 , G09G5/18
Abstract: A multi-stimulus controller for a multi-touch sensor is formed on a single integrated circuit (single-chip). The multi-stimulus controller includes a transmit oscillator, a transmit signal section that generates a plurality of drive signals based on a frequency of the transmit oscillator, a plurality of transmit channels that transmit the drive signals simultaneously to drive the multi-touch sensor, a receive channel that receives a sense signal resulting from the driving of the multi-touch sensor, a receive oscillator, and a demodulation section that demodulates the received sense signal based on a frequency of the receive oscillator to obtain sensing results, the demodulation section including a demodulator and a vector operator.
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公开(公告)号：US09996175B2
公开(公告)日：2018-06-12
申请号：US14550686
申请日：2014-11-21
Applicant: Apple Inc.
Inventor： Steven P. Hotelling , Marduke Yousefpor , Shih Chang Chang
CPC classification number: G06F3/041 , G06F1/3218 , G06F3/0412 , G06F3/0416 , G06F3/044 , G09G3/3648 , G09G3/3666 , G09G2300/0809
Abstract: A circuit for switching an LCD between display and touch modes is disclosed. The circuit can include one or more switches configured to switch one or more drive, sense, and data lines in LCD pixels according to the mode. During touch mode, the circuit switches can be configured to switch one or more drive lines to receive stimulation signals, one or more sense lines to transmit touch signals, and one or more data lines to transmit residual data signals. During display mode, the circuit switches can be configured to switch one or more drive lines and sense lines to receive common voltage signals and one or more data lines to receive data signals. The circuit can be formed around the border of the LCD chip or partially or fully on a separate chip.
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公开(公告)号：US20180025694A1
公开(公告)日：2018-01-25
申请号：US15708795
申请日：2017-09-19
Applicant: Apple Inc.
Inventor： Ahmad Al-Dahle , Yingxuan Li , Marduke Yousefpor , Weijun Yao
CPC classification number: G09G3/3648 , G06F3/0412 , G06F3/044 , G06F2203/04105 , G06F2203/04106 , G06F2203/04107 , G09G2354/00
Abstract: Systems and method of performing touch and force sensing in an electronic device. The device includes a cover and an array of touch-sensor electrodes disposed below the cover. The first array of electrodes may be configured to sense a touch on the cover using a capacitive sensing scheme. The device also includes a force-sensor drive electrode disposed below the first array of electrodes and a force-sensor sense electrode disposed below the force-sensor drive electrode. The force-sensor drive and sense electrode may be configured to sense a force on the cover. The device also includes a shared drive circuit having an output that is operatively coupled to the array of touch-sensor electrodes and the force-sensor drive electrode.
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公开(公告)号：US09779676B2
公开(公告)日：2017-10-03
申请号：US14639406
申请日：2015-03-05
Applicant: APPLE INC.
Inventor： Ahmad Al-Dahle , Yingxuan Li , Marduke Yousefpor , Weijun Yao
CPC classification number: G09G3/3648 , G06F3/0412 , G06F3/044 , G06F2203/04105 , G06F2203/04106 , G06F2203/04107 , G09G2354/00
Abstract: Systems and method of performing touch and force sensing in an electronic device. The device includes a cover and an array of touch-sensor electrodes disposed below the cover. The first array of electrodes may be configured to sense a touch on the cover using a capacitive sensing scheme. The device also includes a force-sensor drive electrode disposed below the first array of electrodes and a force-sensor sense electrode disposed below the force-sensor drive electrode. The force-sensor drive and sense electrode may be configured to sense a force on the cover. The device also includes a shared drive circuit having an output that is operatively coupled to the array of touch-sensor electrodes and the force-sensor drive electrode.
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Patent Agency Ranking
公开(公告)号：US20140327632A1
公开(公告)日：2014-11-06
申请号：US14226710
申请日：2014-03-26
Applicant: Apple Inc.
Inventor： Abbas Jamshidi Roudbari , Cheng-Ho Yu , Marduke Yousefpor , Shih Chang Chang , Ting-Kuo Chang , Yu-Cheng Chen
IPC: G06F3/041
CPC classification number: G06F3/0412 , G02F1/13338 , G02F2201/40 , G06F3/041 , G06F3/044 , G06F2203/04103
Abstract: A display may be provided with integral touch functionality. The display may include a common electrode layer having row electrodes arranged in rows and column electrodes interposed between the row electrodes of each row. The row electrodes may be electrically coupled by conductive paths. The row and column electrodes may be coupled to touch sensor circuitry that uses the row and column electrodes to detect touch events. Each electrode of the common electrode layer may cover a respective portion of an array of pixels. Each pixel of the display may have a respective aperture. The conductive paths that electrically couple row electrodes of the common electrode layer may cover or otherwise block some light from passing through pixels, resulting in reduced apertures. Dummy structures may be provided for other pixels that modify the apertures of the other pixels to match the reduced apertures associated with the conductive paths.
Abstract translation: 可以提供具有整体触摸功能的显示器。 显示器可以包括具有排列成行和列电极的行电极的公共电极层，其插入在每行的行电极之间。 行电极可以通过导电路径电耦合。 行和列电极可以耦合到使用行电极和列电极的触摸传感器电路来检测触摸事件。 公共电极层的每个电极可以覆盖像素阵列的相应部分。 显示器的每个像素可以具有相应的孔径。 电耦合公共电极层的行电极的导电路径可以覆盖或以其它方式阻挡通过像素的一些光，导致减小的孔径。 可以为修改其他像素的孔径以匹配与导电路径相关联的缩小的孔的其他像素提供虚拟结构。
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公开(公告)号：US20130176281A1
公开(公告)日：2013-07-11
申请号：US13784714
申请日：2013-03-04
Applicant: Apple Inc.
Inventor： Steven Porter HOTELLING , Marduke Yousefpor , Shih Chang Chang , John Z. Zhong
IPC: G06F3/044
CPC classification number: G06F3/044 , G06F3/0412
Abstract: Displays with integrated touch sensing circuitry are provided. An integrated touch screen can include multi-function circuit elements that form part of the display circuitry of the display system that generates an image on the display, and also form part of the touch sensing circuitry of a touch sensing system that senses one or more touches on or near the display. The multi-function circuit elements can be, for example, capacitors in display pixels of an LCD that are configured to operate as display circuitry in the display system, and that may also be configured to operate as touch circuitry of the touch sensing system. For example, one or more circuit elements of the display pixel stackup can form a conductive portion of the touch sensing system, such as a charge collector, which can be operated with switches and conductive lines to sense touch.
Abstract translation: 提供带集成触摸感应电路的显示器。 集成触摸屏可以包括形成显示系统的显示电路的一部分的多功能电路元件，其在显示器上产生图像，并且还形成感测一个或多个触摸的触摸感测系统的触摸感测电路的一部分 在显示器上或附近。 多功能电路元件可以是例如LCD的显示像素中的电容器，其被配置为作为显示系统中的显示电路工作，并且还可以被配置为作为触摸感测系统的触摸电路来操作。 例如，显示像素堆叠的一个或多个电路元件可以形成触摸感测系统的导电部分，例如电荷收集器，其可以用开关和导电线来操作以感测触摸。
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公开(公告)号：US12260045B2
公开(公告)日：2025-03-25
申请号：US17933808
申请日：2022-09-20
Applicant: Apple Inc.
Inventor： Sagar R. Vaze , Marduke Yousefpor
Abstract: Differential driving and/or differential sensing can reduce noise in the touch and/or display systems of a touch screen. In some examples, the touch sensor panel can include column and row electrodes routed vertically to a first edge of the touch sensor panel. In some examples, a touch sensor panel can be divided into banks. In some examples, the routing traces for rows can be implemented using four routing tracks per column for three banks. In some examples, the arrangement of routing traces within routing tracks can improve optical characteristics and/or reduce routing trace resistances and loading. In some examples, interconnections between routing traces and row electrodes can have a chevron pattern, an S-shape pattern, or a hybrid pattern. In some examples, differential sense routing can reduce cross-coupling within the touch sensor panel. In some examples, staggering differential drive signals can reduce parasitic signal loss.
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公开(公告)号：US12124291B2
公开(公告)日：2024-10-22
申请号：US18242870
申请日：2023-09-06
Applicant: Apple Inc.
Inventor： Manohar B. Srikanth , Marduke Yousefpor , Ting Sun , Kathrin Berkner-Cieslicki , Mohammad Yeke Yazdandoost , Ricardo J. Motta
CPC classification number: G06F1/1605 , G06F1/1626 , G06F1/1637 , H04N23/63
Abstract: In one implementation, an apparatus includes a display having a front surface and a back surface. The display includes a plurality of pixel regions that emit light from the front surface to display a displayed image and a plurality of apertures that transmit light from the front surface to the back surface. The apparatus includes a camera disposed on a side of the back surface of the display. The camera is configured to capture a captured image. The apparatus includes a processor coupled to the display and the camera. The processor is configured to receive the captured image and apply a first digital filter to a first portion of the captured image and a second digital filter, different than the first digital filter, to a second portion of the captured image to reduce image distortion caused by the display.
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公开(公告)号：US11687192B2
公开(公告)日：2023-06-27
申请号：US16953303
申请日：2020-11-19
Applicant: Apple Inc.
Inventor： Shahrooz Shahparnia , Marduke Yousefpor
IPC: G06F3/041 , G06F3/044 , G06F3/0354 , G09G3/36
CPC classification number: G06F3/041661 , G06F3/03545 , G06F3/041 , G06F3/044 , G06F3/0416 , G06F3/0441 , G06F3/0442 , G06F3/04162 , G06F3/0443 , G09G3/3648
Abstract: A touch controller that can configure touch circuitry according to a scan plan, which can define a sequence of scan events to be performed on a touch panel is disclosed. The touch controller can include a configurable transmit section to generate stimulation signals to drive the panel, a configurable receive section to receive and process touch signals from the panel, and a configurable memory to store the touch signals. The touch controller can also include a programmable scan engine to configure the transmit section, the receive section, and the memory according to the scan plan. The touch controller advantageously provides more robust and flexible touch circuitry to handle various types of touch events at the panel. An active stylus that can generate stimulation signals that can be detected by the touch controller during various touch events at the panel is also disclosed.
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