Patents Assigned to STMicroelectronics Ltd.
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Patent number: 12554363Abstract: 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.Type: GrantFiled: January 13, 2025Date of Patent: February 17, 2026Assignees: STMICROELECTRONICS (BEIJING) R&D CO. LTD, STMICROELECTRONICS LTD.Inventors: Pengcheng Wen, Yuan Yun Wang
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Patent number: 12229370Abstract: 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.Type: GrantFiled: August 31, 2023Date of Patent: February 18, 2025Assignees: STMICROELECTRONICS LTD., STMICROELECTRONICS (BEIJING) R&D CO., LTDInventors: Pengcheng Wen, Yuan Yun Wang
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Patent number: 12148778Abstract: A method of forming a device, the method including: depositing a first photoresist layer over a substrate, forming an array of seed lenses by patterning and reflowing the first photoresist layer, a dimension of the array of seed lenses varying across the substrate, forming a second photoresist layer over the array of seed lenses, and forming a microlens array by patterning and reflowing the second photoresist layer.Type: GrantFiled: April 28, 2021Date of Patent: November 19, 2024Assignee: STMICROELECTRONICS LTD.Inventor: Yu-Tsung Lin
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Patent number: 11775117Abstract: 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.Type: GrantFiled: July 7, 2022Date of Patent: October 3, 2023Assignees: STMicroelectronics (Beijing) R&D Co., Ltd., STMicroelectronics Ltd.Inventors: Pengcheng Wen, Yuan Yun Wang
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Patent number: 11720205Abstract: 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.Type: GrantFiled: December 27, 2021Date of Patent: August 8, 2023Assignees: STMICROELECTRONICS LTD., STMICROELECTRONICS (BEIJING) R&D CO. LTDInventors: Yuan Yun Wang, Pengcheng Wen, Yingying Sun, Yue Ding
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Patent number: 10719114Abstract: An embodiment is a circuit for use with a display device, the circuit including: a first input node configured to be operatively coupled to a first port of a data source device that provides the display device with data, to receive a first direct voltage used for a real-time display of the data on the display device; and at least one output node, configured to operatively provide the display device with at least one output voltage generated based on the first direct voltage, wherein the first port is isolated from a data port used to transmit the data.Type: GrantFiled: April 30, 2018Date of Patent: July 21, 2020Assignees: STMicroelectronics (Shenzhen) R&D Co. Ltd., STMicroelectronics Ltd.Inventors: Andy Lin, Johnny Yoon, Danny Sheng
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Patent number: 10642025Abstract: The method for controlling an angular position of a MEMS mirror, includes: applying a first driving moment to the MEMS mirror to generate a rotational scanning movement of the mirror; and, at a zooming instant, applying a second driving moment to the MEMS mirror, wherein the second driving moment is equal to the first driving moment plus an extra moment. The extra moment may be a DC offset. After a transient period of time from zooming instant, a third driving moment M2=k{dot over (?)}2t is applied. The first and third driving moment are variable linearly with time. The driving moments are applied to torsional springs of the mirror.Type: GrantFiled: September 29, 2016Date of Patent: May 5, 2020Assignee: STMICROELECTRONICS LTD.Inventors: Offir Duvdevany, Dadi Sharon, Sason Sourani
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Patent number: 10401616Abstract: Disclosed herein is a control circuit for a movable mirror. The control circuit includes driving circuitry configured to drive the movable mirror with a drive signal to effectuate oscillating of the movable mirror, opening angle determination circuitry configured to determine an opening angle of the movable mirror, and amplitude control circuitry. The amplitude control circuitry is configured to a) first cause the driving circuitry to generate the drive signal as having an upper threshold drive amplitude, and b) then later cause the driving circuitry to generate the drive signal as having a nominal drive amplitude, as a function of the opening angle of the movable mirror being equal to a desired opening angle.Type: GrantFiled: June 8, 2017Date of Patent: September 3, 2019Assignee: STMicroelectronics Ltd.Inventor: Elik Haran
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Patent number: 9958919Abstract: An embodiment is a circuit for use with a display device, the circuit including: a first input node configured to be operatively coupled to a first port of a data source device that provides the display device with data, to receive a first direct voltage used for a real-time display of the data on the display device; and at least one output node, configured to operatively provide the display device with at least one output voltage generated based on the first direct voltage, wherein the first port is isolated from a data port used to transmit the data.Type: GrantFiled: April 27, 2012Date of Patent: May 1, 2018Assignees: STMICROELECTRONICS (SHENZHEN) R&D CO., LTD., STMICROELECTRONICS LTD.Inventors: Danny Sheng, Andy Lin, Johnny Yoon
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Publication number: 20140295931Abstract: A touch controller is coupled to a touch screen and detects a first gesture at a first point on the touch screen. The first gesture includes physical contact of the touch screen by a user device at the first point. The touch controller detects a second gesture that is associated with movement of the user device from the first point to a second point on the touch screen. The second gesture includes detecting movement of the user device within a sensing range from the first point to the second point. The sensing range corresponds to an orthogonal distance from a surface of the touch screen. The touch controller detects a third gesture at the second touch point. The third gesture includes physical contact of the touch screen at the second touch point. Upon detecting the first, second and third gestures the touch controller performs a corresponding action.Type: ApplicationFiled: March 28, 2013Publication date: October 2, 2014Applicants: STMicroelectronics Ltd., STMicroelectronics Asia Pacific Pte Ltd.Inventors: Chee Yu Ng, Jo Wang, Ravi Bhatia
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Patent number: 8598962Abstract: Pins on an RFIC package carry RF signals between the package and a PCB. A first capacitor is coupled between a selected pin of the RFIC package near the pins carrying the RF signals and a radio-frequency ground on the PCB. A coupling between the RFIC package and the PCB is modeled, and includes modeling of the pins of interest and at least one parasitic element of the coupling. A capacitance of the first capacitor is selected based on the modeling to obtain desired performance at selected operational frequencies. A second capacitor may be coupled between the selected pin a radio frequency ground of the RFIC package. An inductor may be coupled in parallel across the first capacitor.Type: GrantFiled: December 30, 2009Date of Patent: December 3, 2013Assignee: STMicroelectronics Ltd.Inventor: Oleksandr Gorbachov
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Patent number: 8582702Abstract: An electronic device includes an analog-to-digital converter adapted to receive a radio-frequency signal and adapted to provide therefrom a digital signal, wherein the radio-frequency signal may include an interference signal. The electronic device has a controller adapted to perform a digital measure on the digital signal and adapted to generate therefrom a selection signal having a first value indicating a non-interference condition in the radio-frequency signal and having a second value indicating an interference-condition in the radio-frequency signal. A selector is adapted to transmit the digital signal in case the selection signal has the first value and to transmit a signal replacing the digital signal in case the selection signal has the second value.Type: GrantFiled: June 28, 2010Date of Patent: November 12, 2013Assignees: STMicroelectronics S.r.l., STMicroelectronics Ltd.Inventors: Giuseppe Avellone, Oleksandr Gorbachov, Antonino Calcagno, Salvatore Scaccianoce
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Publication number: 20130170820Abstract: A display controller integrated circuit (IC) is disclosed. The display controller IC includes a video interface that receives an image for real time display on a display. The display controller IC further includes means that is configured to store the image on a data storage device so that it can be displayed again at a later time. A display device including the display controller IC and a method of capturing and displaying images are also disclosed.Type: ApplicationFiled: December 29, 2011Publication date: July 4, 2013Applicant: STMicroelectronics Ltd.Inventors: Einstein CHENG, Louis FENG
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Patent number: 8464235Abstract: A system for providing an assembler for a microprocessor has a file which contains data describing the instruction set of the microprocessor. A translation device for translating into machine language accesses the instruction set descriptors to constrain the machine code output of the assembler to conform to the architecture of the instruction set.Type: GrantFiled: January 13, 2010Date of Patent: June 11, 2013Assignee: STMicroelectronics Ltd.Inventors: Richard Shann, Marian MacCormack
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Patent number: 8462114Abstract: An optical mouse includes an image sensor for providing image data via an analog-to-digital converter to a correlation circuit and a motion estimation circuit to provide output signals representative of motion of the mouse. The output signals may be disabled when the mouse is lifted away from the working surface. This may be achieved by high-pass filtering the signals, summing each frame in a summer to provide a single value, and comparing this to a threshold. If the filtered and summed value exceeds the threshold, this may indicate that the image contains in-focus objects, and that the mouse is on the working surface.Type: GrantFiled: June 30, 2005Date of Patent: June 11, 2013Assignees: STMicroelectronics Ltd., STMicroelectronics SAInventors: Jeffrey Raynor, Pascal Mellot
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Patent number: 8432927Abstract: A fixed-size data packet switch comprising: 1) N input ports for receiving incoming fixed-size data packets at a first data rate and outputting the fixed-size data packets at the first data rate; 2) N output ports for receiving fixed-size data packets at the first data rate and outputting the fixed-size data packets at the first data rate; and 3) a switch fabric interconnecting the N input ports and the N output ports.Type: GrantFiled: December 31, 2001Date of Patent: April 30, 2013Assignee: STMicroelectronics Ltd.Inventor: Ge Nong
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Patent number: 8416248Abstract: Methods and device for in-system firmware update in an information output device are provided. In one aspect, a method of firmware update in a display device receives a set of data in an image format through a video signal input channel of an input port of the display device. The set of data is converted from the image format to an instruction set format that is different from the image format. A first set of instructions that is used to operate the display device is updated with the set of data in the instruction set format.Type: GrantFiled: June 30, 2009Date of Patent: April 9, 2013Assignee: STMicroelectronics Ltd.Inventors: I-Hung Weng, Chih-Wei Cheng
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Publication number: 20120280960Abstract: An embodiment is a circuit for use with a display device, the circuit including: a first input node configured to be operatively coupled to a first port of a data source device that provides the display device with data, to receive a first direct voltage used for a real-time display of the data on the display device; and at least one output node, configured to operatively provide the display device with at least one output voltage generated based on the first direct voltage, wherein the first port is isolated from a data port used to transmit the data.Type: ApplicationFiled: April 27, 2012Publication date: November 8, 2012Applicants: STMICROELECTRONICS LTD., STMICROELECTRONICS (SHENZHEN) R&D CO., LTD.Inventors: Danny Sheng, Andy Lin, Johnny Yoon
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Patent number: 8301186Abstract: An enhanced sensitivity radio frequency (RF) front end circuit includes a transformer configured to convert a balanced transmit signal to an unbalanced transmit signal and to convert a second filtered receive signal to a balanced receive signal. A switch in a first state receives the unbalanced transmit signal from the transformer and transfers the unbalanced transmit signal to an amplifier circuit and receives an amplified transmit signal from the amplifier circuit and transfers the amplified transmit signal to a filter. In a second state, the switch receives a first filtered receive signal from the filter and transfers the first filtered receive signal to the amplifier circuit and receives a second filtered receive signal from the amplifier circuit and transfers the second filtered receive signal to the transformer.Type: GrantFiled: April 4, 2008Date of Patent: October 30, 2012Assignee: STMicroelectronics Ltd.Inventor: Oleksandr Gorbachov
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Patent number: 8155095Abstract: A WLAN communication system and algorithm that adaptively changes the data transmission rate of a communication channel based on changing channel conditions. The WLAN communication system or algorithm has two modes being a searching mode and a transmission mode. Furthermore, the WLAN communication system or algorithm incorporates an additive increase, multiplicative decrease (AIMD) function into the rate adaptation algorithm.Type: GrantFiled: December 3, 2008Date of Patent: April 10, 2012Assignee: STMicroelectronics Ltd.Inventor: Mounir Hamdi