Invention Grant
- Patent Title: Phase compensation in a time of flight system
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Application No.: US16855287Application Date: 2020-04-22
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Publication No.: US11543504B2Publication Date: 2023-01-03
- Inventor: Bharath Patil , Anjana Sharma , Subhash Chandra Venkata Sadhu , Ravishankar Ayyagari
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent John R. Pessetto; Frank D. Cimino
- Priority: IN1200/CHE/2014 20140310
- Main IPC: G01S7/497
- 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.
Public/Granted literature
- US20200249331A1 Phase Compensation in a Time of Flight System Public/Granted day:2020-08-06
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