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:
Nov. 28, 2022
Filed:
Dec. 01, 2020
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Patrick Kevin Holub, Novi, MI (US);
John Robert Van Wiemeersch, Novi, MI (US);
Adil Nizam Siddiqui, Farmington Hills, MI (US);
Jeffrey Allen Greenberg, Ann Arbor, MI (US);
Brad Alan Ignaczak, Canton, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/33 (2017.12); H04M 1/72457 (2020.12); H04W 4/02 (2017.12); H04M 1/60 (2005.12);
U.S. Cl.
CPC ...
H04W 4/33 (2018.01); H04M 1/72457 (2020.12); H04W 4/023 (2012.12); H04M 1/6008 (2012.12);
Abstract
A plurality of transducers positioned at respective specified locations in a vehicle are actuated to generate a plurality of respective tones. A plurality of respective time differences are determined between times that each respective tone is generated by the respective transducer and the tone is detected by a portable device. A location of the portable device is determined based at least in part on the time differences.