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. 10, 2016
Filed:
Sep. 30, 2015
Scott Stapleford, Londonderry, NH (US);
Scott Stapleford, Londonderry, NH (US);
PICA Product Development LLC, Derry, NH (US);
Abstract
A detector for detecting the presence of Direct Sequence Spread Spectrum (DSSS) signals transmitted in the 2.4 GHz band by a drone aircraft controller to control the flight of a drone aircraft. The detector has a microprocessor that performs autocorrelation analysis of multiple samples of the received DSSS signals and noise present in multiple spaced channels within the 2.4 GHz band to detect consistent correlation peaks which indicate the presence of DSSS signals. The microprocessor also determines the relative strength of the correlation peaks and energizes LEDs generally indicating how close the drone aircraft controller is to the drone aircraft detector. The detector has a first antenna means, a second antenna means, and a receiver and the microprocessor performs time difference of arrival measurements between the signals received by the first antenna means and the second antenna means to determine the general direction of the drone aircraft controller with respect to the drone aircraft detector and the processor displays this general direction utilizing other LEDs on the detector.