公开(公告)号：US20240012518A1

公开(公告)日：2024-01-11

申请号：US18459249

申请日：2023-08-31

Applicant: STMICROELECTRONICS (BEIJING) R&D CO., LTD ,  STMICROELECTRONICS LTD

Inventor： Pengcheng Wen ,  Yuan Yun Wang

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/3233

CPC classification number: G06F3/04184 ,  G06F3/04166 ,  G06F3/0443 ,  G09G3/3233 ,  G09G2330/023 ,  G09G2320/0247 ,  G09G2354/00

Abstract: A method of operating a display includes performing a non-synchronized touch scan pattern on a display with a controller coupled to the display. The non-synchronized touch scan pattern schedules touch scans independent of a refresh rate of the display. Upon the controller detecting a first synchronization pulse from a display controller coupled to the controller and the display, a first pulse-checking timer is started. Upon detecting a second synchronization pulse from the display controller and before the first pulse-checking timer expires, a first display refresh rate for the display is obtained from an interval between the first synchronization pulse and the second synchronization pulse. A synchronized touch scan pattern is performed with the controller, and is scheduled to avoid touch scans coinciding with refreshes of the display performed at the first display refresh rate.

公开(公告)号：US20230400904A1

公开(公告)日：2023-12-14

申请号：US17806813

申请日：2022-06-14

Applicant: STMicroelectronics, Inc. ,  STMICROELECTRONICS (BEIJING) R&D CO. LTD ,  STMicroelectronics (Grenoble 2) SAS

Inventor： Arnaud Deleule ,  Kalyan-Kumar Vadlamudi-Reddy ,  Darin K Winterton ,  Jihong Chen ,  Olivier Lemarchand

IPC: G06F1/3231 ,  G06F1/3234 ,  G01S13/08

CPC classification number: G06F1/3231 ,  G06F1/3265 ,  G01S13/08

Abstract: A method for operating an electronic device includes while a display is in low power mode, detecting based on data collected by a time of flight (ToF) sensor, a movable object within a field of view of the electronic device; in response to the detecting initiating a period of detection having a plurality of frames, the period of detection being a time period over which a distance value indicative of a distance between the movable object and the display is detected; for each of the plurality of frames, changing the distance value to reflect whether the movable object is moving near or further from the electronic device; detecting that the distance value after the period of detection is less than a threshold distance value indicative of the movable object approaching the display; if the distance value is less than the threshold distance value, waking up the display.

公开(公告)号：US20230266845A1

公开(公告)日：2023-08-24

申请号：US17677119

申请日：2022-02-22

Applicant: STMicroelectronics (BEIJING) R&D Co., LTD ,  STMicroelectronics (Shenzhen) R&D Co., Ltd.

Inventor： Bowei Chen ,  Yue Ding ,  Guodong Sun

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0446 ,  G06F3/0412 ,  G06F3/0447

Abstract: A method for operating an electronic device includes detecting, by a touchscreen controller, a touch point on a touchscreen; determining, by the touchscreen controller, coordinates of the touch point; scaling, by the touchscreen controller, up the coordinates of the touch point to obtain scaled up coordinates by overwriting a reserved portion of a touch event protocol with additional information corresponding to the coordinates of the touch point; reporting, by the touchscreen controller, the scaled up coordinates of the touch point to an application processor; and determining, by the application processor, the coordinates of the touch point with an increased resolution by converting the scaled up coordinates into a floating point value.

公开(公告)号：US20230205359A1

公开(公告)日：2023-06-29

申请号：US17562552

申请日：2021-12-27

Applicant: STMICROELECTRONICS LTD. ,  STMICROELECTRONICS (BEIJING) R&D CO. LTD

Inventor： Yuan Yun Wang ,  Pengcheng Wen ,  Yingying Sun ,  Yue Ding

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04166 ,  G06F3/0446

Abstract: A method for reporting touch on a touchscreen includes detecting first touch data from the touchscreen corresponding to a first touch on the touchscreen; determining coordinates of the first touch from the first touch data; reporting the coordinates of the first touch at a first time; determining predicted coordinates of a second touch based on a linear regression of historical touch data; and reporting the predicted coordinates of the second touch at a second time, where the second time occurs after the first time.

公开(公告)号：US11416095B2

公开(公告)日：2022-08-16

申请号：US15151247

申请日：2016-05-10

Applicant: STMicroelectronics Asia Pacific Pte Ltd ,  STMicroelectronics (Beijing) R&D Co. Ltd

Inventor： Tae-gil Kang ,  Hang Yin ,  Cam Chung La

IPC: G06F3/041 ,  G06F3/044

Abstract: An electronic device described herein includes a touch screen for a touch sensitive display carried by a portable housing. The electronic device is configured to operate in a high detection threshold mode to determine whether an object is in contact with the touch sensitive display, and operate in a low detection threshold mode to determine whether the object is adjacent to the touch sensitive display, based on lack of detection of the object being in contact with the touch sensitive display. The electronic device is further configured to determine whether the object is in contact with a peripheral edge of the portable housing by determining whether the object is adjacent opposite sides of the touch sensitive display, based on detection of the object being adjacent to the touch sensitive display.

公开(公告)号：US10970192B2

公开(公告)日：2021-04-06

申请号：US16368742

申请日：2019-03-28

Applicant: STMICROELECTRONICS (BEIJING) R&D CO. LTD

Inventor： Xiao Kang Jiao ,  PengFei Zhu

IPC: G06F11/00 ,  G06F11/36 ,  G06F11/22

Abstract: A debug-enabled processing device includes a processor, a communication transceiver circuit, and a debug support unit. The debug support unit has a plurality of dedicated debug registers to facilitate debugging a software program under execution by the processor. One of the plurality of debug registers is a control register having at least four bits, which are used to enable/disable a plurality of debugging operations. Others of the debug registers include a set of index registers that may be configured to pass data to and from the processor.

公开(公告)号：US20190113999A1

公开(公告)日：2019-04-18

申请号：US15803054

申请日：2017-11-03

Applicant: STMicroelectronics (Beijing) R&D Co. Ltd ,  STMicroelectronics Asia Pacific Pte Ltd

Inventor： Hank Yin ,  Cam Chung La ,  Janet Sun

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

Abstract: A method includes upon sensing a touch to a first location on a touch display, reporting first coordinates of the touch. After sensing movement of the touch along a first path from the first location to a second location more than a tolerance distance away, intermediate coordinates of the touch along the first path that are not more than a cutoff distance away are reported such that there is a first gap between a last reported intermediate coordinate and the second location. After sensing movement of the touch along a second path from the second location to a third location more, second coordinates of the touch are reported, the second reported coordinates of the touch being a point along the first path that is calculated by subtracting the first gap from a distance between the first location and the third location, and then adding a first compensation difference thereto.

公开(公告)号：US09813051B2

公开(公告)日：2017-11-07

申请号：US15052170

申请日：2016-02-24

Applicant: STMicroelectronics (Beijing) R&D Co. Ltd

Inventor： Zhenghao Cui

IPC: H03K17/04 ,  H03K17/041 ,  H03K17/16

CPC classification number: H03K17/04106 ,  H03K17/165

Abstract: An electronic circuit is for switching a power transistor having a drain coupled to a drain node, a source coupled to a lower voltage supply, and a gate coupled to a gate node. The electronic circuit includes first current generation circuitry to generate a first current to flow into the gate node in response to assertion off an ON signal, the first current being substantially constant. Second current generation circuitry generates a second current to flow into the gate node in response to deassertion of an OFF signal, the second current being inversely proportional to a gate to source voltage of the power transistor. First comparison circuitry compares a drain voltage at the drain node to a reference voltage, and activates third current generation circuitry to generate a third current to flow into the gate node when the drain voltage is less than the reference voltage.

公开(公告)号：US08681742B2

公开(公告)日：2014-03-25

申请号：US13167228

申请日：2011-06-23

Applicant: Guobin Sun ,  Hongfei Zhu ,  Yanling Yao

Inventor： Guobin Sun ,  Hongfei Zhu ,  Yanling Yao

IPC: H04W4/00 ,  H04J3/16 ,  H04W36/00

CPC classification number: H04L1/187 ,  H04L1/1607 ,  H04W36/0011

Abstract: A mobile device includes a communications protocol stack including a MAC layer and TCP layer separated by an IP layer. A cross-layer coordination module parallel to the communications protocol stack is coupled to both the MAC layer and TCP layer. The MAC layer generates a message sent to the cross-layer coordination module indicating that the mobile device is about to engage in a communications handover from a first base station to a second base station. The cross-layer coordination module passes handover information to the TCP layer so as to inform the TCP layer of the communications handover. If the mobile device is operating as a TCP sender, the TCP layer freezes its connection and state during the communications handover. If the mobile device is operating as a TCP receiver, the TCP layer sends a TCP ACK message to a TCP sender having an advertised window size set to a zero value so as to cause the TCP sender to freeze a connection and state during communications handover.

Abstract translation: 移动设备包括通信协议栈，其包括由IP层分隔的MAC层和TCP层。 与通信协议栈并行的跨层协调模块耦合到MAC层和TCP层。 MAC层产生发送到跨层协调模块的消息，指示移动设备即将从第一基站到第二基站进行通信切换。 跨层协调模块将切换信息传递给TCP层，以通知TCP层通信切换。 如果移动设备作为TCP发送者运行，则TCP层在通信切换期间冻结其连接和状态。 如果移动设备作为TCP接收器操作，则TCP层向广播窗口大小设置为零值的TCP发送器发送TCP ACK消息，以使TCP发送者在通信切换期间冻结连接和状态。

公开(公告)号：US08583901B2

公开(公告)日：2013-11-12

申请号：US12700638

申请日：2010-02-04

Applicant: Peng Fei Zhu ,  Hong-Xia Sun ,  Yong Qiang Wu

Inventor： Peng Fei Zhu ,  Hong-Xia Sun ,  Yong Qiang Wu

IPC: G06F9/30

CPC classification number: G06F9/3012 ,  G06F9/384

Abstract: Embodiments of a processor architecture utilizing multi-bank implementation of physical register mapping table are provided. A register renaming system to correlate architectural registers to physical registers includes a physical register mapping table and a renaming logic. The physical register mapping table has a plurality of entries each indicative of a state of a respective physical register. The mapping table has a plurality of non-overlapping sections each of which having respective entries of the mapping table. The renaming logic is coupled to search a number of the sections of the mapping table in parallel to identify entries that indicate the respective physical registers have a first state. The renaming logic selectively correlates each of a plurality of architectural registers to a respective physical register identified as being in the first state. Methods of utilizing the multi-bank implementation of physical register mapping table are also provided.

Abstract translation: 提供了利用多库实现物理寄存器映射表的处理器架构的实施例。 将结构寄存器与物理寄存器相关联的寄存器重命名系统包括物理寄存器映射表和重命名逻辑。 物理寄存器映射表具有多个表示每个物理寄存器的状态的条目。 映射表具有多个非重叠部分，每个部分具有映射表的相应条目。 重命名逻辑被耦合以并行地搜索映射表的多个部分以识别指示相应物理寄存器具有第一状态的条目。 重命名逻辑选择性地将多个体系结构寄存器中的每一个相关于被识别为处于第一状态的相应物理寄存器。 还提供了利用多库实现物理寄存器映射表的方法。