Title:
信号波を検出して処理する方法およびデバイス
Document Type and Number:
Japanese Patent JP4189906
Kind Code:
B2
Abstract:
The invention relates to a method for detecting and processing the amplitude and phase of signal waves. A Modulated signal source generates the signal waves which are modified by transmission medium or by reflection and scattering by at least one object. The modified signal waves are received and demodulated using a modulation signal. The amplitude of the modulated signal waves and their phase relationship to the modulation signal are measured and evaluated. The demodulated signal wave is converted into an electrical charge or charge displacement in the receiving medium and is distributed in accordance with a modulation signal to at least two readout outputs and fed to an evaluation unit. The evaluation unit produces the sum and difference of the output signals thus applying the value of the intensity and the phase position of the signal wave that has been scattered, reflected or delayed by the object.
Inventors:
Schwarterdorf
Application Number:
JP2002536797A
Publication Date:
December 03, 2008
Filing Date:
October 16, 2001
Export Citation:
Assignee:
Schwarterdorf
International Classes:
H01L27/14; H01L31/108; G01S7/4914; G02F2/00; H01L31/10; H01L31/107; H03D1/00; H03D9/06; H04L27/00; G01S17/894
Foreign References:
| WO1998010255A2 |
Other References:
Neuartige 3D-Visionsysteme auf der Basis Layout-optimierter PMD-Strukturen,tm-Technisches Messen,ドイツ,Vol.65(1998), 7-8,pp.264-271
Attorney, Agent or Firm:
Kazuo Shigenobu
Hideo Shimizu
Yuichi Takagi
Hideo Shimizu
Yuichi Takagi