公开(公告)号：US11256362B2

公开(公告)日：2022-02-22

申请号：US17009671

申请日：2020-09-01

Applicant: Apple Inc.

Inventor： Karan Jain ,  Nandita Venugopal

IPC: G06F3/041 ,  B32B5/26 ,  G06F3/044 ,  G06F3/04886

Abstract: Fabric touch-sensitive layers provided for electronic devices can absorb moisture, liquids or chemicals, which can cause drift in measurements of touch nodes formed in the fabric layer. In some examples, reference nodes formed in a fabric layer can be used to account for drift due to the absorption of moisture, liquids or chemicals. The reference nodes can be isolated from the effects of proximate or touching objects and from absorption of moisture, liquids or chemicals. The reference nodes can also be formed in a fabric layer having the same or similar properties as the fabric touch-sensitive layers. When measurements of touch nodes drift due to changes in absorption, the measurements can be adjusted based on measurements of reference nodes.

公开(公告)号：US10788936B1

公开(公告)日：2020-09-29

申请号：US16036766

申请日：2018-07-16

Applicant: Apple Inc.

Inventor： Karan Jain ,  Nandita Venugopal

IPC: G06F3/041 ,  B32B5/26 ,  G06F3/044 ,  G06F3/0488

Abstract: Fabric touch-sensitive layers provided for electronic devices can absorb moisture, liquids or chemicals, which can cause drift in measurements of touch nodes formed in the fabric layer. In some examples, reference nodes formed in a fabric layer can be used to account for drift due to the absorption of moisture, liquids or chemicals. The reference nodes can be isolated from the effects of proximate or touching objects and from absorption of moisture, liquids or chemicals. The reference nodes can also be formed in a fabric layer having the same or similar properties as the fabric touch-sensitive layers. When measurements of touch nodes drift due to changes in absorption, the measurements can be adjusted based on measurements of reference nodes.

公开(公告)号：US11340716B2

公开(公告)日：2022-05-24

申请号：US16029489

申请日：2018-07-06

Applicant: Apple Inc.

Inventor： Blake R. Marshall ,  Reza Nasiri Mahalati ,  Wing Kong Low ,  Izhar Bentov ,  Ashwin Kumar Asoka Kumar Shenoi ,  Henry N. Tsao ,  Supratik Datta ,  Wesley W. Zuber ,  Nandita Venugopal ,  Karan S. Jain

IPC: G06F3/0354 ,  G06F3/038 ,  G06F3/044

Abstract: Touch-based input devices, such as a stylus, can receive tactile input from a user. The tactile input functions can be performed by a touch sensor, such as a capacitive sensing device. A touch sensor can be integrated into a stylus in a low profile form. Tactile input can be received at the user's natural grip location. Furthermore, the stylus can effectively distinguish between tactile inputs from a user and disregard sustained tactile inputs that are provided while the user simply holds the stylus at the user's natural grip location.

公开(公告)号：US11995272B2

公开(公告)日：2024-05-28

申请号：US18326743

申请日：2023-05-31

Applicant: Apple Inc.

Inventor： Santosh Pokhrel ,  Nandita Venugopal ,  Supratik Datta

IPC: G06F3/00 ,  G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04186 ,  G06F3/04164 ,  G06F3/0443 ,  G06F3/0446 ,  G06F2203/04107

Abstract: Touch sensor panels/screens can include negative temperature coefficient materials in the stack-up and routing traces with expanded areas to reduce thermal drift and minimize the detection of false touches. In some examples, the touch sensor panels/screens can include a plurality of touch electrodes in a first layer. In some examples, the sensor panels/screens can include one or more dielectric materials in a second layer, the one or more dielectric materials including a negative temperature coefficient material. In some examples, the touch sensor panels/screens can include a plurality of routing traces in a third layer, the plurality of routing traces routing the plurality of touch electrodes to a touch controller chip.

公开(公告)号：US11989358B2

公开(公告)日：2024-05-21

申请号：US17729908

申请日：2022-04-26

Applicant: Apple Inc.

Inventor： Blake R. Marshall ,  Reza Nasiri Mahalati ,  Wing Kong Low ,  Izhar Bentov ,  Ashwin Kumar Asoka Kumar Shenoi ,  Henry N. Tsao ,  Supratik Datta ,  Wesley W. Zuber ,  Nandita Venugopal ,  Karan S. Jain

IPC: G06F3/0354 ,  G06F3/038 ,  G06F3/044

CPC classification number: G06F3/03545 ,  G06F3/0383 ,  G06F3/044 ,  G06F2203/04102 ,  G06F2203/04105 ,  G06F2203/04107

Abstract: Touch-based input devices, such as a stylus, can receive tactile input from a user. The tactile input functions can be performed by a touch sensor, such as a capacitive sensing device. A touch sensor can be integrated into a stylus in a low profile form. Tactile input can be received at the user's natural grip location. Furthermore, the stylus can effectively distinguish between tactile inputs from a user and disregard sustained tactile inputs that are provided while the user simply holds the stylus at the user's natural grip location.

公开(公告)号：US20220253162A1

公开(公告)日：2022-08-11

申请号：US17729908

申请日：2022-04-26

Applicant: Apple Inc.

Inventor： Blake R. MARSHALL ,  Reza Nasiri Mahalati ,  Wing Kong Low ,  Izhar Bentov ,  Ashwin Kumar Asoka Kumar Shenoi ,  Henry N. Tsao ,  Supratik Datta ,  Wesley W. Zuber ,  Nandita Venugopal ,  Karan S. Jain

IPC: G06F3/0354 ,  G06F3/038 ,  G06F3/044

Abstract: Touch-based input devices, such as a stylus, can receive tactile input from a user. The tactile input functions can be performed by a touch sensor, such as a capacitive sensing device. A touch sensor can be integrated into a stylus in a low profile form. Tactile input can be received at the user's natural grip location. Furthermore, the stylus can effectively distinguish between tactile inputs from a user and disregard sustained tactile inputs that are provided while the user simply holds the stylus at the user's natural grip location.

公开(公告)号：US10594160B2

公开(公告)日：2020-03-17

申请号：US15474569

申请日：2017-03-30

Applicant: Apple Inc.

Inventor： Karan S. Jain ,  Supratik Datta ,  Nandita Venugopal ,  Asif Hussain

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J50/10 ,  H01F27/28 ,  H01F27/40 ,  H01F41/04 ,  H01F38/14 ,  H02J7/02

Abstract: A wireless power system includes an electrically-balanced inductor in a transmitter device and an electrically-balanced inductor in a receiver device. The electrically-balanced inductors can be formed by introducing crossovers between radially-adjacent portions of two separate turns of each inductor. The crossovers balance the electric field generated by the transmitter device when transferring power to the receiver device.

公开(公告)号：US20180198318A1

公开(公告)日：2018-07-12

申请号：US15474569

申请日：2017-03-30

Applicant: Apple Inc.

Inventor： Karan S. Jain ,  Supratik Datta ,  Nandita Venugopal ,  Asif Hussain

IPC: H02J50/10 ,  H02J7/02 ,  H01F38/14 ,  H01F27/28 ,  H01F41/04

Abstract: A wireless power system includes an electrically-balanced inductor in a transmitter device and an electrically-balanced inductor in a receiver device. The electrically-balanced inductors can be formed by introducing crossovers between radially-adjacent portions of two separate turns of each inductor. The crossovers balance the electric field generated by the transmitter device when transferring power to the receiver device.