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1. 发明公开

EP1944622A1 SPATIAL INFORMATION DETECTING DEVICE 有权转让
标题翻译： ERKENNUNGSGERÄTFÜRRAUMINFORMATION
公开(公告)号：EP1944622A1
公开(公告)日：2008-07-16
申请号：EP07829486.5
申请日：2007-10-10
申请人： MATSUSHITA ELECTRIC WORKS, LTD.
发明人： KUMAHARA, Minoru , HASHIMOTO, Yusuke , SAKAMOTO, Shinji , TAKADA, Yuji
IPC分类号： G01S17/36 , G01C3/06
CPC分类号： G01S17/36 , G01S7/4913 , G01S7/4915 , G01S7/493 , G01S7/497 , G01S17/89
摘要： In an apparatus using an intensity-modulated light for detection of spatial information based upon light intensity of light reflected from a target space, a timing synchronization circuit is provided to synchronize a phase of the intensity-modulated light from a light-emitting element with a timing of operating a light-receiving element receiving the intensity-modulated light. The light-receiving element is caused to operate for enabling the detection of intensity of the received light for each of a plurality of phase regions within one cycle of the intensity-modulated light. The timing synchronization circuit functions to compare a cyclic variation determining the operation of the light-receiving element with a cyclic variation associated with an output from a light-emitting element driving circuit in order to keep a constant phase difference between these two cyclic variations.
摘要翻译：在使用强度调制光用于基于从目标空间反射的光的光强度来检测空间信息的装置中，提供定时同步电路以使来自发光元件的强度调制光的相位与操作接收强度调制光的光接收元件的定时。导致光接收元件工作，以便能够在强度调制光的一个周期内检测多个相位区域中的每一个的接收光的强度。定时同步电路用于将确定光接收元件的操作的循环变化与与发光元件驱动电路的输出相关联的循环变化进行比较，以便在这两个循环变化之间保持恒定的相位差。

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