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:
Aug. 12, 2025
Filed:
Jan. 17, 2022
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Nurul Taimur Islam, Cupertino, CA (US);
Helen H. Liang, Los Gatos, CA (US);
Jack E. Graves, Sunnyvale, CA (US);
Malcolm J. Northcott, Santa Cruz, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01C 3/08 (2006.01); G01S 7/4912 (2020.01); G01S 17/34 (2020.01); G01S 17/58 (2006.01);
U.S. Cl.
CPC ...
G01S 7/4917 (2013.01); G01S 17/34 (2020.01); G01S 17/58 (2013.01);
Abstract
A range sensing apparatus includes a modulator that applies a frequency chirp to a light source, causing a nonlinear variation in a frequency of an outgoing beam towards a target. A detector receives both a portion of the outgoing beam and a reflection of the outgoing beam from the target. A processor, which linearizes the frequency chirp, extracts characteristic signals with and without linearization of the chirps to identify a range and velocity of the target.