Invention Grant
- Patent Title: Calibrating method for calibrating measured distance of a measured object measured by a distance-measuring device according to ambient temperature and related device
- Patent Title (中): 用于校准由距离测量装置根据环境温度和相关装置测量的被测物体的测量距离的校准方法
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Application No.: US13045529Application Date: 2011-03-11
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Publication No.: US08718962B2Publication Date: 2014-05-06
- Inventor: En-Feng Hsu , Chi-Chieh Liao , Ming-Tsan Kao
- Applicant: En-Feng Hsu , Chi-Chieh Liao , Ming-Tsan Kao
- Applicant Address: TW Science-Based Industrial Park, Hsin-Chu
- Assignee: PixArt Imaging Inc.
- Current Assignee: PixArt Imaging Inc.
- Current Assignee Address: TW Science-Based Industrial Park, Hsin-Chu
- Agent Winston Hsu; Scott Margo
- Priority: TW99119474A 20100615
- Main IPC: G06F19/00
- IPC: G06F19/00 ; G01C25/00
Abstract:
A calibrating method of calibrating a measured distance of a measured object measured by a distance-measuring device according to an ambient temperature includes providing a temperature sensor for measuring the ambient temperature of the distance-measuring device, calculating a calibrated imaging location of the measured object according to the ambient temperature and an imaging location of the measured object, and calibrating the measured distance according to the calibrated imaging location. In this way, when the distance-measuring device measures the measured object, the error due to the variation of the ambient temperature is avoided according to the calibrating method.
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