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公开(公告)号：US20200249331A1
公开(公告)日：2020-08-06
申请号：US16855287
申请日：2020-04-22
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Bharath Patil , Anjana Sharma , Subhash Chandra Venkata Sadhu , Ravishankar Ayyagari
Abstract: Systems and methods are provided for imaging a surface via time of flight measurement. An illumination system includes an illumination driver and an illumination source and is configured to project modulated electromagnetic radiation to a point on a surface of interest. A sensor system includes a sensor driver and is configured to receive and demodulate electromagnetic radiation reflected from the surface of interest. A temperature sensor is configured to provide a measured temperature representing a temperature at one of the illumination driver and the sensor driver and located at a position remote from the one of the illumination driver and the sensor driver. A compensation component is configured to calculate a phase offset between the illumination system and the sensor system from at least the measured temperature and a model representing transient heat flow within the system.
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公开(公告)号：US11543504B2
公开(公告)日：2023-01-03
申请号：US16855287
申请日：2020-04-22
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Bharath Patil , Anjana Sharma , Subhash Chandra Venkata Sadhu , Ravishankar Ayyagari
IPC: G01S7/497 , G01S17/36 , G01S17/894
Abstract: Systems and methods are provided for imaging a surface via time of flight measurement. An illumination system includes an illumination driver and an illumination source and is configured to project modulated electromagnetic radiation to a point on a surface of interest. A sensor system includes a sensor driver and is configured to receive and demodulate electromagnetic radiation reflected from the surface of interest. A temperature sensor is configured to provide a measured temperature representing a temperature at one of the illumination driver and the sensor driver and located at a position remote from the one of the illumination driver and the sensor driver. A compensation component is configured to calculate a phase offset between the illumination system and the sensor system from at least the measured temperature and a model representing transient heat flow within the system.
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公开(公告)号：US10663566B2
公开(公告)日：2020-05-26
申请号：US15729060
申请日：2017-10-10
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Bharath Patil , Anjana Sharma , Subhash Chandra Venkata Sadhu , Ravishankar Ayyagari
Abstract: Systems and methods are provided for imaging a surface via time of flight measurement. An illumination system includes an illumination driver and an illumination source and is configured to project modulated electromagnetic radiation to a point on a surface of interest. A sensor system includes a sensor driver and is configured to receive and demodulate electromagnetic radiation reflected from the surface of interest. A temperature sensor is configured to provide a measured temperature representing a temperature at one of the illumination driver and the sensor driver and located at a position remote from the one of the illumination driver and the sensor driver. A compensation component is configured to calculate a phase offset between the illumination system and the sensor system from at least the measured temperature and a model representing transient heat flow within the system.
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公开(公告)号：US20180031682A1
公开(公告)日：2018-02-01
申请号：US15729060
申请日：2017-10-10
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Bharath Patil , Anjana Sharma , Subhash Chandra Venkata Sadhu , Ravishankar Ayyagari
Abstract: Systems and methods are provided for imaging a surface via time of flight measurement. An illumination system includes an illumination driver and an illumination source and is configured to project modulated electromagnetic radiation to a point on a surface of interest. A sensor system includes a sensor driver and is configured to receive and demodulate electromagnetic radiation reflected from the surface of interest. A temperature sensor is configured to provide a measured temperature representing a temperature at one of the illumination driver and the sensor driver and located at a position remote from the one of the illumination driver and the sensor driver. A compensation component is configured to calculate a phase offset between the illumination system and the sensor system from at least the measured temperature and a model representing transient heat flow within the system.
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