The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 2000
Filed:
Mar. 18, 1997
Yasutaka Katayama, Tokyo, JP;
Kazuaki Kimura, Tokyo, JP;
Jun Sasagawa, Tokyo, JP;
Kazushige Koshikawa, Tokyo, JP;
Kabushiki Kaisha Topcon, Tokyo, JP;
Abstract
A surveying system comprises a surveying machine (11) which is disposed at a reference point (A) and a reflecting mirror (5) which is disposed on the side of a target point (B). In this surveying system, a signal-light projecting device (16) for projecting a beam of signal light (P3) onto the surveying machine (11) is disposed on the side of the target point (B), and a rough-direction detecting device (20) for detecting roughly a direction in which the signal-light projecting device (16) is located by receiving the beam of signal light (P8), and a precise-direction detecting device (21) for detecting precisely the direction in which the signal-light projecting device (16) is located by receiving the beam of signal light (P3) are disposed on the side of the surveying machine (11).