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. 12, 2016
Filed:
Mar. 19, 2009
Avi Zohar, Rosh Haain, IL;
Sharon Zohar, San Jose, CA (US);
Avi Zohar, Rosh Haain, IL;
Sharon Zohar, San Jose, CA (US);
Other;
Abstract
A locator includes a base unit and a handheld unit. The base unit, which is typically stationary, includes an FSK transceiver and printed circuit antennas. The handheld unit, which is typically mobile, also includes an FSK transceiver and printed circuit antennas. The handheld unit computes at least one bearing to the base unit over multiple frequencies and transmitting antennas, processes statistics of bearing results, determines a cyclic average of the bearing results, calculates an overall variance, assesses quality of a computed bearing result based on the overall variance, and upon assessing, either displays the computed bearing result or disqualifies the computed bearing. The handheld unit computes a height difference between the base unit and the handheld unit. The height difference is calculated using altimeters within the units. Alternatively, the height difference is calculated using GPS.