公开(公告)号：US12207214B1

公开(公告)日：2025-01-21

申请号：US18400621

申请日：2023-12-29

Applicant: GOOGLE LLC

Inventor： Chengliang Qian ,  Premal Parekh ,  Hu-Chi Chang ,  Yung-Tsung Chen

IPC: H04W56/00 ,  G06F3/0354 ,  G06F3/038 ,  G06F3/041 ,  G06F3/044

Abstract: A method, apparatus, and computer-readable medium for determining a tolerance specification of a clock synchronization between a touch display device (TDD) and a stylus. In the method, an accumulated timing error between the TDD and the stylus is determined based on crystal inaccuracies of the TDD and the stylus, connection interval of Bluetooth communication between the TDD and the stylus, and a number of consecutive failed transmissions of the Bluetooth communication. A total processing delay is determined based on a first processing delay and a second processing delay. The first processing delay is a time delay of sending a synchronization signal from touch driving circuitry of the TDD to Bluetooth circuitry of the TDD. The second processing delay is a time delay of sending a Bluetooth packet from the TDD to the stylus. The tolerance specification is determined based on the accumulated timing error and the total processing delay.

公开(公告)号：US20250028403A1

公开(公告)日：2025-01-23

申请号：US18773080

申请日：2024-07-15

Applicant: Google LLC

Inventor： Chun-Yen Liu ,  Ion Bita ,  Young Seok Oh ,  Premal Parekh ,  Chiaching Chu

IPC: G06F3/041 ,  G06F1/16

Abstract: This document describes systems and techniques directed to touch sensor integration with enlarged active area displays. In aspects, a display includes a cover layer, an array of pixels, and a plurality of transistors that control an electrical activation of one or more pixels of the array of pixels. The plurality of transistors define a smaller area than the array of pixels such that at least one pixel of the array of pixels extends beyond the area defined by the plurality of transistors and above driving circuitry (“extended emitting area”). Variable pixel and/or transistor densities can support the extended emitting area. A touch sensor is integrated between the cover layer and the array of pixels and is operatively coupled to one or more touch trace routings that are, at least partially, disposed between the cover layer and one or more pixels within the extended emitting area.

公开(公告)号：US11631934B2

公开(公告)日：2023-04-18

申请号：US17382861

申请日：2021-07-22

Applicant: Google LLC

Inventor： Premal Parekh

IPC: H01Q1/38 ,  H01Q1/27 ,  H01Q1/42 ,  H01Q1/22

Abstract: The present disclosure provides for an example stack of components for a display of a wearable device. The stack may include a first metal layer, a second metal layer, and an insulation layer separating the first and second metal layers. The first metal layer may be configured to be a touch screen and the second metal layer may be configured to be a near field communication antenna. The first metal layer may be connected to a first integrated circuit chip and the second layer may be connected to a second integrated circuit chip such that the touch sensor and the NFC antenna are on different circuits.

公开(公告)号：US10216335B1

公开(公告)日：2019-02-26

申请号：US15787424

申请日：2017-10-18

Applicant: GOOGLE LLC

Inventor： Premal Parekh ,  Amy Lai Wong

IPC: G06F3/041 ,  G06F3/045 ,  G06F3/044

Abstract: An apparatus can comprise a display, a first plurality of electrodes, a second plurality of electrodes, a dummy electrode, and a processor. The processor can cause the apparatus to recognize a contact in response to receiving input on at least one of the first plurality of electrodes and at least one of the second plurality of electrodes and receiving no input on the dummy electrode, and ignore a contact in response to receiving input on the dummy electrode, at least one of the first plurality of electrodes, and at least one of the second plurality of electrodes.

公开(公告)号：US20240152242A1

公开(公告)日：2024-05-09

申请号：US18275240

申请日：2021-06-08

Applicant: Google LLC

Inventor： Premal Parekh ,  Young Seok Oh

IPC: G06F3/044 ,  G04G17/04 ,  G04G21/08 ,  H10K59/40 ,  H10K102/00

CPC classification number: G06F3/0448 ,  G04G17/045 ,  G04G21/08 ,  H10K59/40 ,  G06F2203/04102 ,  G06F2203/04103 ,  H10K2102/311

Abstract: The present disclosure provides an electronic device utilizing a flexible display panel having a plurality of bendable flaps formed in a periphery bending portion of the flexible display panel. The flexible display panel may have a circular shape utilized in a wearable device. An active and touch sensitive area for displaying images and receiving touch input may extend to the periphery bending portion of the flexible display panel, thus providing a wide viewing range and extending touch sensitive area of utilization as well as enhancing an overall aesthetic appearance of the electronic device.