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:
May. 08, 2012
Filed:
May. 25, 2006
Cheol-hyo Lee, Daejon, KR;
Jae-young Kim, Bucheon-si, KR;
Cheol-Hyo Lee, Daejon, KR;
Jae-Young Kim, Bucheon-si, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
An apparatus for measuring a range based on a chaotic ultra wideband (UWB) wireless communication technology is disclosed. The Apparatus includes a chaotic signal generating/modulating unit, a transceiving unit, a detecting unit, a transform unit, a comparison unit, and a range measurement unit. The transform unit converts the analog voltage signal from the detecting unit into digital signals based on a first sampling period. The comparison unit compares the analog voltage signal from the detecting unit with a predetermined threshold value and to output a comparison signal. The range measurement unit is configured to calculate a time point corresponding to a leading edge, which is a moment when initial data of a packet payload arrive, by using the digital signals based on the threshold value and by using the comparison signal, and to perform a range measurement calculation based on the time point corresponding to the leading edge.