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Patent Agency Ranking
公开(公告)号：US20180129036A1
公开(公告)日：2018-05-10
申请号：US15348087
申请日：2016-11-10
Applicant: STMicroelectronics Ltd
Inventor： Elik Haran , Gilad Adler
CPC classification number: G02B26/085 , B81B3/0059 , B81B2201/042 , G01R31/2829 , G01R31/44 , G02B26/105
Abstract: Disclosed herein is a circuit for determining failure of a movable MEMS mirror. The circuit includes a mirror position sensor associated with the movable MEMS mirror and that generates an analog output as a function of angular position of the movable MEMS mirror. An analog to digital converter converts the analog output from the mirror position sensor to a digital mirror sense signal. Failure detection circuitry calculates a difference between the digital mirror sense signal at a first instant in time and the digital mirror sense signal at a second instant in time, determines whether the difference exceeds a threshold, and indicates failure of the movable MEMS mirror as a function of the difference failing to exceed the threshold.
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公开(公告)号：US10778940B2
公开(公告)日：2020-09-15
申请号：US16266208
申请日：2019-02-04
Applicant: STMicroelectronics Ltd
Inventor： Gilad Adler , Sason Sourani
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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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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公开(公告)号：US20180288366A1
公开(公告)日：2018-10-04
申请号：US15471333
申请日：2017-03-28
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: 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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公开(公告)号：US10048488B2
公开(公告)日：2018-08-14
申请号：US15348087
申请日：2016-11-10
Applicant: STMicroelectronics Ltd
Inventor： Elik Haran , Gilad Adler
Abstract: Disclosed herein is a circuit for determining failure of a movable MEMS mirror. The circuit includes a mirror position sensor associated with the movable MEMS mirror and that generates an analog output as a function of angular position of the movable MEMS mirror. An analog to digital converter converts the analog output from the mirror position sensor to a digital mirror sense signal. Failure detection circuitry calculates a difference between the digital mirror sense signal at a first instant in time and the digital mirror sense signal at a second instant in time, determines whether the difference exceeds a threshold, and indicates failure of the movable MEMS mirror as a function of the difference failing to exceed the threshold.
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