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公开(公告)号：US20140092052A1
公开(公告)日：2014-04-03
申请号：US13631226
申请日：2012-09-28
Applicant: APPLE INC.
Inventor： Martin P. Grunthaner , Peter W. Richards , Romain A. Teil , Steven P. Hotelling
CPC classification number: G06F3/044 , G06F3/0416 , G06F3/0421 , G06F2203/04105 , G06F2203/04106 , G06F2203/04109
Abstract: Detecting force and touch using FTIR and capacitive location. FTIR determines applied force by the user's finger within infrared transmit lines on a touch device. A pattern of such lines determine optical coupling with the touch device. Capacitive sensing can determine (A) where the finger actually touches, so the touch device more accurately infers applied force; (B) whether finger touches shadow each other; (C) as a baseline for applied force; or (D) whether attenuated reflection is due to a current optical coupling, or is due to an earlier optical coupling, such as a smudge on the cover glass. If there is attenuated reflection without actual touching, the touch device can reset a baseline for applied force for the area in which that smudge remains. Infrared transmitters and receivers are positioned where they are not visible to a user, such as below a frame or mask for the cover glass.
Abstract translation: 使用FTIR和电容位置检测力和触摸。 FTIR确定用户手指在触摸设备上的红外传输线内施加的力。 这种线的图案决定了与触摸装置的光耦合。 电容感测可以确定（A）手指实际触摸的位置，因此触摸设备更准确地推断施加的力; （B）手指是否触碰彼此; （C）作为施加力的基准; 或者（D）是否衰减的反射是由于当前的光耦合引起的，或者是由于较早的光耦合，如盖玻片上的污迹。 如果在没有实际触摸的情况下存在衰减反射，则触摸装置可以重置针对该污迹保留的区域的施加力的基线。 红外发射器和接收器位于用户不可见的位置，例如用于盖玻片的框架或掩模下方。
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22.发明申请公开(公告)号：US20210124460A1
公开(公告)日：2021-04-29
申请号：US17141658
申请日：2021-01-05
Applicant: Apple Inc.
Inventor： Daniel J. Bechstein , Collin R. Petty , Martin P. Grunthaner , Andrew W. Joyce , John R. Matthews , Pavan O. Gupta , Albert Lin
IPC: G06F3/044
Abstract: A compliant material, such as a conductive foam, is positioned in the dielectric or capacitive gap between drive and sense electrodes and/or other conductive elements of a capacitive and/or other force sensor, such as a TFT or other display element and a sensor assembly. The compliant material prevents damage by preventing and/or cushioning contact. The compliant material may be conductive. By being conductive and being positioned between the electrodes while still being separated from one or more of the electrodes, the compliant material also shortens the effective electrical distance between the electrodes. As a result, the force sensor may be more sensitive than would otherwise be possible while being less vulnerable to damage.
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公开(公告)号：US10817096B2
公开(公告)日：2020-10-27
申请号：US14616059
申请日：2015-02-06
Applicant: Apple Inc.
Inventor： Charley T. Ogata , Martin P. Grunthaner , Michael B. Wittenberg , Peter W. Richards , Romain A. Teil , Steven P. Hotelling
IPC: G06F3/041 , G06F1/16 , G06F3/0354 , G06F3/044
Abstract: A force-sensitive device for electronic device. The force inputs may be detected by measuring changes in capacitance, as measured by surface flex of a device having a flexible touchable surface, causing flex at a compressible gap within the device. A capacitive sensor responsive to changes in distance across the compressible gap. The sensor can be positioned above or below, or within, a display element, and above or below, or within, a backlight unit. The device can respond to bending, twisting, or other deformation, to adjust those zero force measurements. The device can use measure of surface flux that appear at positions on the surface not directly the subject of applied force, such as when the user presses on a part of the frame or a surface without capacitive sensors.
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公开(公告)号：US20190361560A1
公开(公告)日：2019-11-28
申请号：US16538724
申请日：2019-08-12
Applicant: Apple Inc.
Inventor： Sinan Filiz , Martin P. Grunthaner , John Stephen Smith , Charley T. Ogata , Christian M. Sauer , Shin John Choi , Christopher J. Butler , Steven J. Martisauskas
Abstract: A device configured to sense a touch on a surface of the device. The device includes a cover and a force-sensing structure disposed below the cover. The force-sensing structure may be positioned below a display and used in combination with other force-sensing elements to estimate the force of a touch on the cover of a device.
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公开(公告)号：US20180024687A1
公开(公告)日：2018-01-25
申请号：US15722999
申请日：2017-10-02
Applicant: Apple Inc.
Inventor： Bingrui Yang , Martin P. Grunthaner , Steven P. Hotelling
CPC classification number: G06F3/0414 , G01L1/22 , G01L1/2262 , G06F3/0418 , G06F3/044 , G06F3/045 , G06F3/047 , G06F2203/04102 , G06F2203/04105 , H03K17/9625 , H04M1/0266 , H04M1/7258 , H04M1/72583
Abstract: An electronic device may have a housing in which components such as a display are mounted. A strain gauge may be mounted on a layer of the display such as a cover layer or may be mounted on a portion of the housing or other support structure. The layer of material on which the strain gauge is mounted may be configured to flex in response to pressure applied by a finger of a user. The strain gauge may serve as a button for the electronic device or may form part of other input circuitry. A differential amplifier and analog-to-digital converter circuit may be used to gather and process strain gauge signals. The strain gauge may be formed form variable resistor structures that make up part of a bridge circuit that is coupled to the differential amplifier. The bridge circuit may be configured to reduce the impact of capacitively coupled noise.
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Patent Agency Ranking
公开(公告)号：US20170285746A1
公开(公告)日：2017-10-05
申请号：US15087306
申请日：2016-03-31
Applicant: Apple Inc.
Inventor： Sora Kim , Martin P. Grunthaner , Rui Jin , Michael B. Wittenberg , Michael K. McCord , Henric Larsson , Giovanni Gozzini , Lucy Browning , Scott A. Myers
CPC classification number: G06F3/016 , G06F3/041 , G06F3/044 , G06F21/32 , G06F2203/04105 , G06K9/00006 , G06K9/00013 , H03K17/9625 , H03K17/964 , H03K17/975 , H03K2217/960755
Abstract: An input device can be integrated within an electronic device and/or operably connected to an electronic device through a wired or wireless connection. The input device can include one or more force sensors positioned below a cover element of the input device or an input surface of the electronic device. The input device can include other components and/or functionality, such as a biometric sensor and/or a switch element.
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公开(公告)号：US09772721B2
公开(公告)日：2017-09-26
申请号：US14730370
申请日：2015-06-04
Applicant: Apple Inc.
Inventor： Brian Q. Huppi , Martin P. Grunthaner , John G. Elias , Sinan Filiz , Steven P. Hotelling
IPC: G06F3/043 , G06F3/041 , G06F3/044 , G06F3/0488
CPC classification number: G06F3/043 , G06F3/0414 , G06F3/044 , G06F3/04883 , G06F2203/04104 , G06F2203/04106 , G06F2203/04808
Abstract: An input/output device for a computing device including one or more touch sensors and one or more force sensors. The touch sensors sense data including one or more locations at which a contact or near-contact occurs. The force sensor sense data including a measure of an amount of force presented at the one or more locations at which a contact occurs. The touch sensors and the force sensors responsive to signals occurring in response to whether the signals are in response to contact or in response to an amount of force. The input/output device also includes one or more circuits coupled to the touch sensors and to the force sensors, and capable of combining information from both sensors.
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公开(公告)号：US09575588B2
公开(公告)日：2017-02-21
申请号：US15005732
申请日：2016-01-25
Applicant: Apple Inc.
Inventor： Bingrui Yang , Martin P. Grunthaner , Steven P. Hotelling
CPC classification number: G06F3/0414 , G01L1/22 , G01L1/2262 , G06F3/0418 , G06F3/044 , G06F3/045 , G06F3/047 , G06F2203/04102 , G06F2203/04105 , H03K17/9625 , H04M1/0266 , H04M1/7258 , H04M1/72583
Abstract: An electronic device may have a housing in which components such as a display are mounted. A strain gauge may be mounted on a layer of the display such as a cover layer or may be mounted on a portion of the housing or other support structure. The layer of material on which the strain gauge is mounted may be configured to flex in response to pressure applied by a finger of a user. The strain gauge may serve as a button for the electronic device or may form part of other input circuitry. A differential amplifier and analog-to-digital converter circuit may be used to gather and process strain gauge signals. The strain gauge may be formed form variable resistor structures that make up part of a bridge circuit that is coupled to the differential amplifier. The bridge circuit may be configured to reduce the impact of capacitively coupled noise.
Abstract translation: 电子设备可以具有其中安装诸如显示器的部件的壳体。 应变计可以安装在诸如覆盖层的显示器的层上，或者可以安装在壳体或其他支撑结构的一部分上。 应变仪安装在其上的材料层可以被配置为响应于用户的手指施加的压力而弯曲。 应变计可以用作电子设备的按钮或者可以形成其他输入电路的一部分。 差分放大器和模数转换器电路可用于收集和处理应变计信号。 应变计可以形成为构成耦合到差分放大器的桥式电路的一部分的可变电阻器结构。 桥接电路可以被配置为减少电容耦合噪声的影响。
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公开(公告)号：US20160306481A1
公开(公告)日：2016-10-20
申请号：US15032038
申请日：2014-10-28
Applicant: APPLE INC.
Inventor： Sinan Filiz , Brian Q. Huppi , Christopher J. Butler , Martin P. Grunthaner , Shahrooz Shahpamia , Sunggu Kang , Kai Wang
CPC classification number: G06F3/0414 , G01L1/144 , G01L1/146 , G01L1/16 , G06F3/0416 , G06F3/044 , G06F2203/04106 , H01L41/1132 , H03K17/962 , H03K17/964 , H03K17/9643 , H03K2017/9602 , H03K2217/96031 , H03K2217/960735 , H03K2217/960755
Abstract: Systems for detecting an amount and/or location of a force applied to a device using a piezoelectric film are provided. One example system can include a transparent piezoelectric film for generating an electric charge in response to a deformation of the film. Electrodes positioned on opposite surfaces of the piezoelectric film can be used to detect the generated electric charge and determine an amount and/or location of force applied to the film based on the generated electric charge. In another embodiment, the system can include a capacitive touch sensor for determining a location of a touch event on the device.
Abstract translation: 提供了用于检测施加到使用压电膜的装置的力的量和/或位置的系统。 一个示例性系统可以包括用于响应于膜的变形而产生电荷的透明压电膜。 可以使用位于压电膜的相对表面上的电极来检测所产生的电荷，并且基于产生的电荷确定施加到膜的力的量和/或位置。 在另一个实施例中，系统可以包括用于确定设备上的触摸事件的位置的电容式触摸传感器。
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30.发明申请公开(公告)号：US20160147352A1
公开(公告)日：2016-05-26
申请号：US14729508
申请日：2015-06-03
Applicant: Apple Inc.
Inventor： Sinan Filiz , James E. Pedder , Charley T. Ogata , John Stephen Smith , Dhaval Chandrakant Patel , Shin John Choi , Brian Q. Huppi , Christopher J. Butler , Martin P. Grunthaner
IPC: G06F3/041
CPC classification number: G06F3/0414 , G01L1/005 , G01L1/16 , G01L1/18 , G01L1/20 , G01L1/205 , G06F3/0412 , G06F3/0416 , G06F3/044 , G06F3/045 , G06F2203/04103 , G06F2203/04105 , G06F2203/04111
Abstract: An optically transparent force sensor that may compensate for environmental effects, including, for example, variations in temperature of the device or the surroundings. In some examples, two force-sensitive layers are separated by a compliant layer. The relative electrical response of the two force-sensitive layers may be used to compute an estimate of the force of a touch that reduces the effect of variations in temperature. In some examples, piezoelectric films having anisotropic strain properties are used to reduce the effects of temperature.
Abstract translation: 可以补偿环境影响的光学透明的力传感器，包括例如装置或周围环境的温度变化。 在一些示例中，两个力敏感层由柔顺层分开。 可以使用两个力敏感层的相对电响应来计算降低温度变化影响的触摸力的估计。 在一些实例中，使用具有各向异性应变特性的压电膜来降低温度的影响。
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