公开(公告)号：ITMI20050131A1

公开(公告)日：2006-08-01

申请号：ITMI20050131

申请日：2005-01-31

Applicant: STMICROELECTRONICS LTD MALTA

Inventor： DALLI FRANK ,  MALLIA CHARLO ,  MONTEBELLO LOUIS

公开(公告)号：FR3122793B1

公开(公告)日：2024-09-27

申请号：FR2104852

申请日：2021-05-07

Applicant: STMICROELECTRONICS LTD

Inventor： GONTHIER LAURENT

IPC: H02M7/145

Abstract: Circuit électronique avec thyristor La présente description concerne un convertisseur comprenant un étage (10) de conversion alternatif-continu comprenant un premier thyristor (SCR_F1), un premier circuit d'alimentation (SHS) fournissant une première tension de référence (VDD_HS) entre un premier noeud (20) et un deuxième noeud et un deuxième circuit d'alimentation (30) fournissant une deuxième tension de référence (VC_FL1) entre des troisième et quatrième noeuds, la cathode du premier thyristor étant couplée au premier noeud du premier circuit d'alimentation par un premier commutateur (M_HS) et étant connectée au quatrième noeud, le deuxième circuit d'alimentation comprenant un premier élément redresseur (DFL) couplé au deuxième noeud du premier circuit d'alimentation et couplé au troisième noeud. Figure pour l'abrégé : Fig. 1

公开(公告)号：ITMI20061671A1

公开(公告)日：2008-03-02

申请号：ITMI20061671

申请日：2006-09-01

Applicant: STMICROELECTRONICS LTD MALTA

Inventor： MONTEBELLO JESMOND ,  ZAMMIT BRIAN

公开(公告)号：ITMI20050289A1

公开(公告)日：2006-08-25

申请号：ITMI20050289

申请日：2005-02-24

Applicant: STMICROELECTRONICS LTD MALTA

Inventor： CAUCHI CARMEL ,  VIGAR ADRIAN

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：US11758098B2

公开(公告)日：2023-09-12

申请号：US17987250

申请日：2022-11-15

Applicant: STMicroelectronics LTD

Inventor： Elik Haran

IPC: G02B26/08 ,  H04N9/31 ,  H04N5/06 ,  H03L7/08 ,  H03K21/40

CPC classification number: H04N9/3135 ,  H04N5/06 ,  H04N9/3155 ,  H04N9/3161 ,  H03K21/40 ,  H03L7/08

Abstract: A control system includes a mirror controller generating horizontal and vertical mirror synchronization signals for a mirror based upon a mirror clock signal. Laser modulation circuitry generates horizontal and vertical laser synchronization signals as a function of first and second laser clock signals and generates control signals for a laser that emits a laser beam that impinges on the mirror. First synchronization circuitry receives the horizontal mirror synchronization signal and the horizontal laser synchronization signal, and modifies generation of the first laser clock signal to achieve alignment between the horizontal mirror synchronization signal and horizontal laser synchronization signal. Second synchronization circuitry receives the vertical mirror synchronization signal and the vertical laser synchronization signal, and modifies generation of the second laser clock signal to achieve alignment between the vertical mirror synchronization signal and vertical laser synchronization signal.

公开(公告)号：US11706392B2

公开(公告)日：2023-07-18

申请号：US17479176

申请日：2021-09-20

Applicant: STMicroelectronics LTD ,  STMicroelectronics S.r.l.

Inventor： Massimo Ratti ,  Eli Yaser ,  Naomi Petrushevsky ,  Yotam Nachmias

IPC: H04N9/31 ,  G06T1/20

CPC classification number: H04N9/3182 ,  G06T1/20 ,  H04N9/3135

Abstract: A light projection system includes a MEMS mirror operating on a mirror drive signal to generate a mirror sense signal resulting from operation of the MEMS mirror based on the mirror drive signal. A mirror driver generates the mirror drive signal from a drive control signal. A controller receives the mirror sense signal from the MEMS mirror, obtains a first sample of the mirror sense signal at a first phase thereof, obtains a second sample of the mirror sense signal at a second phase thereof, wherein the first and second phases are separated by a half period of the mirror drive signal, with the second phase occurring after the first phase, and generates the drive control signal based on a difference between the first and second samples to keep the mirror drive signal separated in phase from the mirror sense signal by a desired amount of phase separation.

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：US11681140B2

公开(公告)日：2023-06-20

申请号：US16855301

申请日：2020-04-22

Applicant: STMicroelectronics Ltd

Inventor： Sivan Kinstlich ,  Offir Duvdevany

IPC: G02B26/08

CPC classification number: G02B26/0833

Abstract: Mirror control circuitry operates to control a movable mirror. The mirror control circuitry includes drive circuitry for providing a drive signal to the movable mirror, and a processor. The processor causes the drive circuitry to generate the drive signal so as to have pulses with leading edges occurring an offset period of time after a maximum opening angle of the movable mirror and trailing edges occurring an offset period of time before a zero crossing of the movable mirror. The processor may sample a mirror sense signal from the movable mirror at times at which a derivative of capacitance of the movable mirror with respect to time is zero, and then perform an action based upon the samples.

公开(公告)号：US11553164B2

公开(公告)日：2023-01-10

申请号：US17012938

申请日：2020-09-04

Applicant: STMicroelectronics Ltd ,  STMicroelectronics S.r.l.

Inventor： Massimo Ratti ,  Eli Yaser ,  Naomi Petrushevsky ,  Yotam Nachmias

IPC: H04N9/31 ,  G06T1/20

Abstract: A light projection system includes a microelectromechanical (MEMS) mirror configured to operate in response to a mirror drive signal and to generate a mirror sense signal as a result of the operation. A mirror driver is configured to generate the mirror drive signal in response to a drive control signal. A zero cross detector is configured to detect zero crosses of the mirror sense signal. A controller is configured to generate the drive control signal as a function of the detected zero crosses of the mirror sense signal.