| US 7,518,709 B2 | ||
| Processing apparatus for pulsed signal and processing method for pulsed signal and program therefor | ||
| Masahiro Oishi, Tokyo (Japan); and Yoshikatsu Tokuda, Tokyo (Japan) | ||
| Assigned to Kabushiki Kaisha Topcon, Tokyo (Japan) | ||
| Filed on Jan. 28, 2005, as Appl. No. 11/46,349. | ||
| Claims priority of application No. 2004-021467 (JP), filed on Jan. 29, 2004. | ||
| Prior Publication US 2005/0171712 A1, Aug. 04, 2005 | ||
| Int. Cl. G01C 3/08 (2006.01) | ||
| U.S. Cl. 356—4.01 [356/5.01; 356/5.1] | 17 Claims |
| 1. A processing apparatus for a pulsed signal comprising:
a sampling portion for sampling one pulsed signal;
a converting portion for converting the sampled one pulsed signal to a response signal having a periodicity responding to
the signal at a predetermined timing;
an adding portion for combining a plurality of the sampled sampling data by utilizing the periodicity of the response signal
and aligning phases thereof; and
a memory portion for storing the combined data in a predetermined address,
wherein the data stored in the memory portion is constituted by a data enhancing a level of the pulsed signal.
|