Invention Grant
US07791715B1 Method and system for lossless dealiasing in time-of-flight (TOF) systems
有权
飞行时间（TOF）系统中无损去空的方法和系统
- Patent Title: Method and system for lossless dealiasing in time-of-flight (TOF) systems
- Patent Title (中): 飞行时间（TOF）系统中无损去空的方法和系统
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Application No.: US11906609Application Date: 2007-10-02
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Publication No.: US07791715B1Publication Date: 2010-09-07
- Inventor: Cyrus Bamji
- Applicant: Cyrus Bamji
- Applicant Address: US CA Sunnyvale
- Assignee: Canesta, Inc.
- Current Assignee: Canesta, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Canesta, Inc.
- Agent Michael A. Kaufman
- Main IPC: G01C3/08
- IPC: G01C3/08
Abstract:
Time-of-flight (TOF) phase-derived data is dealiased by operating the TOF system using at least two close-together modulation frequencies f1 and f2 that are close to the TOF system maximum modulation frequency fm. On one hand, phase data acquired by the TOF is associated with a desirably long aliasing interval range ZAIR normally associated with a rather low modulation frequency. On the other hand, phase data acquired by the TOF system is also associated with the high precision certainty as to Z value normally associated with high modulation frequency. Preferably the TOF system operates always close to fm such that TOF operating efficiency is high, and system signal/noise ratio is not substantially degraded using the present invention.
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