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公开(公告)号：US20200211988A1
公开(公告)日：2020-07-02
申请号：US16706594
申请日：2019-12-06
Applicant: STMICROELECTRONICS LTD
Inventor： Endruw JAHJA , Cheng-Yang SU
IPC: H01L23/00
Abstract: A fan-out wafer level package includes a semiconductor die with a redistribution layer on a sidewall of the semiconductor die. A redistribution layer positioned over the die includes an extended portion that extends along the sidewall. The semiconductor die is encapsulated in a molding compound layer. The molding compound layer is positioned between the extended portion of the redistribution layer and the sidewall of the semiconductor die. Solder contacts, for electrically connecting the semiconductor device to an electronic circuit board, are positioned on the redistribution layer. The solder contacts and the sidewall of the redistribution layer can provide electrical contact on two different locations. Accordingly, the package can be used to improve interconnectivity by providing vertical and horizontal connections.
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42.发明授权公开(公告)号：US10602029B2
公开(公告)日：2020-03-24
申请号：US15941717
申请日：2018-03-30
Applicant: STMicroelectronics LTD , STMicroelectronics S.r.l.
Inventor： Eli Yaser , Massimo Ratti , Naomi Petrushevsky
Abstract: Described herein is a video projection system including an optical module with at least one collimated light source to generate a light beam and at least one movable mirror to reflect the light beam. The video projection system also includes a video source producing a digital video stream in accordance with a clock signal and a movement synchronization signal, as well as a projector system. The projector system includes mirror control circuitry configured to control movement of the at least one movable mirror in accordance with the clock signal and the movement synchronization signal, a light source controller configured to control generation of collimated light by the at least one collimated light source, and processing circuitry configured to receive the digital video stream, and to generate control signals for the light source controller based upon the received digital video stream.
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公开(公告)号：US20190174092A1
公开(公告)日：2019-06-06
申请号：US16266208
申请日：2019-02-04
Applicant: STMicroelectronics Ltd
Inventor： Gilad ADLER , Sason SOURANI
CPC classification number: H04N7/0127 , G02B26/0833 , G02B26/101 , G02B26/105 , G09G3/02 , G09G2310/0224 , H04N9/3129 , H04N9/3161 , H04N9/3164 , H04N9/3188
Abstract: A projector includes a first laser source projecting a first laser beam, a second laser source projecting a second laser beam at an angle with respect to the first laser beam, and a mirror reflecting the first and second laser beams. Circuitry controls the mirror to simultaneously reflect the first and second laser beams in a first scan pattern to form a first image having a number of scan lines greater than two times a horizontal resonance frequency of the mirror divided by a desired frame rate of the first image. The first laser beam forms a first angle of incidence with the mirror and the second laser beam forms a second angle of incidence with the mirror, the second angle of incidence being equal to the first angle of incidence summed with the angle of the second laser beam with respect to the first laser beam.
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44.发明授权公开(公告)号：US10288990B1
公开(公告)日：2019-05-14
申请号：US15850667
申请日：2017-12-21
Applicant: STMicroelectronics S.r.l. , STMicroelectronics Ltd
Inventor： Massimo Ratti , Eli Yaser , Naomi Petrushevsky , Massimiliano Barone
Abstract: Disclosed herein is a laser projection system including a laser projector emitting a laser beam, a movable mirror apparatus reflecting the laser beam toward a surface, and a graphics processing unit (GPU). The GPU is configured to receive video data, estimate a varying speed of movement of the movable mirror apparatus for different positions of the laser beam across the surface, and process the video data based upon the estimated varying speed of movement. An application specific integrated circuit (ASIC) receives the processed video data, and to generate a beam position control signal based upon required or desired movement of the movable mirror apparatus. A laser driver controls the laser projector as a function of the processed video data, and a mirror controller controls the movable mirror apparatus as a function of the beam position control signal.
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公开(公告)号：US10237515B2
公开(公告)日：2019-03-19
申请号：US15471333
申请日：2017-03-28
Applicant: STMicroelectronics Ltd
Inventor： Gilad Adler , Sason Sourani
Abstract: Disclosed herein is an electronic device including a first laser source configured to project a first laser beam, and a second laser source configured to project a second laser beam in alignment with the first laser beam in a first direction but at an angle with respect to the first laser beam in a second direction. A mirror apparatus is positioned so as to reflect the first and second laser beams. Control circuitry is configured to control the mirror apparatus to simultaneously reflect the first and second laser beams in a first scan pattern to form an first image, the first image formed from the first scan pattern having a number of scan lines greater than two times a horizontal resonance frequency at which the mirror apparatus oscillates divided by a desired frame rate of the first image.
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Patent Agency Ranking
公开(公告)号：US20180348506A1
公开(公告)日：2018-12-06
申请号：US15613455
申请日：2017-06-05
Applicant: STMicroelectronics Ltd
Inventor： Offir Duvdevany , Naomi Petrushevsky
CPC classification number: G02B26/0833 , G02B26/10 , G02B26/105 , H03L1/00 , H03L7/0814 , H04N9/3129 , H04N9/3135 , H04N9/3194
Abstract: Disclosed herein is a mirror controller for an oscillating mirror. The mirror controller includes a processor configured to receive a mirror sense signal from the oscillating mirror and to determine a phase error between the mirror sense signal and a mirror drive signal. The processor determines the phase error by sampling the mirror sense signal at a first time, sampling the mirror sense signal at a second time at which the mirror sense signal is expected to be equal to the mirror sense signal as sampled at the first time, and generating the phase error as a function of a difference between the sample of the mirror sense signal at the second time and the sample of the mirror sense signal at the first time.
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公开(公告)号：US20180321483A1
公开(公告)日：2018-11-08
申请号：US15589542
申请日：2017-05-08
Applicant: STMicroelectronics Ltd
Inventor： Elik Haran
CPC classification number: G02B26/085 , B81B7/008 , G02B26/101 , G02B26/105
Abstract: An electronic device disclosed herein includes a mirror controller configured to generate a drive control signal, with a drive circuit configured to generate a drive signal for a movable mirror based upon the drive control signal. A sensing circuit is configured to sense the drive signal. The mirror controller is further configured to adjust the drive control signal as a function of the sensed drive signal.
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公开(公告)号：US09942531B2
公开(公告)日：2018-04-10
申请号：US15458192
申请日：2017-03-14
Applicant: STMicroelectronics Ltd
Inventor： Sason Sourani
CPC classification number: H04N9/3194 , G02B27/141 , H04N9/3129 , H04N9/3158 , H04N9/3161 , H04N9/3182 , H04N9/3185
Abstract: A color calibration device for a laser scanning apparatus includes a compensation unit configured to electronically compensate for positional errors of the three-color laser source. The compensation unit includes an emitted light detector configured to measure a power of an emitted light beam. A calibration unit coupled to the emitted light detector has a controller configured to generate a quantity correction value for the three-color laser source. A laser source control element is configured to generate a control quantity for the three-color laser source, based on the quantity correction value. A dominant color detector is configured to detect any dominant color in the light beam being projected and actuate the controller for the dominant color.
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公开(公告)号：US20180067303A1
公开(公告)日：2018-03-08
申请号：US15256909
申请日：2016-09-06
Applicant: STMicroelectronics Ltd
Inventor： Sason Sourani
IPC: G02B26/08
CPC classification number: G02B26/0841 , B81B2201/042 , B81B2203/0136 , G09G3/346 , H02P25/032
Abstract: The present disclosure provides a system and method for controlling operation of a resonance MEMS mirror. The system and method includes activating either an in-plane or staggered MEMS mirror via sets of activation pulses applied to the MEMS mirror, detecting current at the MEMS mirror, generating a window for detecting a change in a direction of the current at the MEMS mirror, and terminating the window and the activation pulse if a change in the current direction is detected during the window. In some embodiments, two sets of activation pulses are applied to the MEMS mirror.
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公开(公告)号：US20170363506A1
公开(公告)日：2017-12-21
申请号：US15188455
申请日：2016-06-21
Applicant: STMicroelectronics LTD
Inventor： Sason Sourani
CPC classification number: G01M11/005 , B81B3/00 , B81B7/008 , B81B2201/042 , G02B26/0833 , G02B26/0841 , G08B21/185
Abstract: Disclosed herein is a circuit for determining failure of a movable MEMS mirror. The circuit includes an integrator receiving an opening angle signal representing an opening angle of the movable MEMS mirror, and a differentiator receiving the opening angle signal. A summing circuit is configured to sum the integrator output and the differentiator output. A comparison circuit is configured to determine whether the sum of the integrator output and differentiator output is not within a threshold window. An indicator circuit is configured to generate an indicator signal indicating that the movable MEMS mirror has failed based on the comparison circuit indicating that the sum of the integrator output and differentiator output is not within the threshold window.
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