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:
Jan. 04, 2022
Filed:
Jan. 02, 2020
The Boeing Company, Chicago, IL (US);
John E. Rogers, Owens Cross Roads, AL (US);
Robert A. Smith, Huntsville, AL (US);
The Boeing Company, Chicago, IL (US);
Abstract
A method and apparatus for identifying a location of a radio-frequency identification tag. A hand-held locator device is configured to transmit a first signal and a second signal. A frequency of the first signal changes through a first range of frequencies and is transmitted in a range of directions corresponding to the first range of frequencies. A frequency of the second signal changes through a second range of frequencies and is transmitted in the range of directions corresponding to the second range of frequencies. A difference frequency signal, having a frequency that is a difference between the frequency of the first signal and the frequency of the second signal, is received from the radio-frequency identification tag. The difference frequency signal is processed to determine and display a direction of the radio-frequency identification tag from the locator device.