Invention Grant
US07907258B2 Method of detecting a light pulse reflected on an object to determine the distance from the object, sensor and device for implementing same
有权
检测在物体上反射的光脉冲的方法，以确定与物体，传感器和用于实现其的装置的距离
- Patent Title: Method of detecting a light pulse reflected on an object to determine the distance from the object, sensor and device for implementing same
- Patent Title (中): 检测在物体上反射的光脉冲的方法，以确定与物体，传感器和用于实现其的装置的距离
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Application No.: US12261420Application Date: 2008-10-30
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Publication No.: US07907258B2Publication Date: 2011-03-15
- Inventor: Johan Rothman , Eric De Borniol
- Applicant: Johan Rothman , Eric De Borniol
- Applicant Address: FR Paris
- Assignee: Commissariat a l'Energie Atomique
- Current Assignee: Commissariat a l'Energie Atomique
- Current Assignee Address: FR Paris
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR0707723 20071102
- Main IPC: G01C3/08
- IPC: G01C3/08
Abstract:
A method of detecting a light pulse reflected on an object, including steps of: emitting a light pulse of known intensity and duration towards the object; detecting a reflection signal of the light pulse on the object during a first integration time, wherein, the detecting is carried out with at least one gain sensor that amplifies the reflection signal; on detection during the first integration time, varying an amplification gain of the at least one sensor in a controlled manner so that the amplification gain at each instant of the first integration time is known; and determining a time of return of the reflection signal by evaluating the amplification gain of the reflection signal.
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