Invention Grant
- Patent Title: Detecting interference between time-of-flight cameras using modified image sensor arrays
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Application No.: US16896103Application Date: 2020-06-08
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Publication No.: US11076085B2Publication Date: 2021-07-27
- Inventor: Gabor Becker
- Applicant: Amazon Technologies, Inc.
- Applicant Address: US WA Seattle
- Assignee: Amazon Technologies, Inc.
- Current Assignee: Amazon Technologies, Inc.
- Current Assignee Address: US WA Seattle
- Agency: Athorus, PLLC
- Main IPC: H04N5/232
- IPC: H04N5/232 ; B64C39/02 ; H04N5/225

Abstract:
Time-of-flight cameras may be synchronized where the fields of view of the time-of-flight cameras overlap. The time-of-flight cameras may be programmed within intervals of time for illuminating their respective fields of view that do not conflict with one another. When a first time-of-flight camera illuminates a first field of view that overlaps with a second field of view of a second time-of-flight camera, and the second time-of-flight camera detects reflected light from the illumination, the second time-of-flight camera may determine a time to illuminate the second field of view based on the reflected light. A time-of-flight camera may include an image sensor modified to include one or more modulated light sensors among an array of photoreceptors. A modulation frequency or illumination interval may be selected for the time-of-flight camera based on modulation frequencies or illumination intervals of other cameras, as determined based on data captured by the modulated light sensors.
Public/Granted literature
- US20200304720A1 DETECTING INTERFERENCE BETWEEN TIME-OF-FLIGHT CAMERAS USING MODIFIED IMAGE SENSOR ARRAYS Public/Granted day:2020-09-24
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