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:
Jul. 07, 1992
Filed:
Nov. 26, 1990
Applicant:
Inventors:
Tomoaki Ueda, Kyoto, JP;
Koei Obata, Kusatsu, JP;
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375-1 ; 342458 ; 380 48 ; 364717 ;
Abstract
A distance measurement apparatus receives pseudo noise reflected from a target object. The apparatus then obtains a cross-correlation value from cross-correlation of the received pseudo noise with pseudo noise which has been convoluted with expected measurement values. The apparatus measures a distance to the target object based upon the cross-correlation value. Also, a relative position measurement apparatus measures distances to an operator from plural points on the apparatus and then measures a relative position of the operator with respect to the apparatus based upon the plural distances.