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:
Mar. 22, 2022
Filed:
Aug. 28, 2018
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Miaolei Yan, Santa Clara, CA (US);
Roberto M. Ribeiro, San Jose, CA (US);
Richard Yeh, Los Altos, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 33/00 (2006.01); G01N 35/00 (2006.01); G01N 1/02 (2006.01);
U.S. Cl.
CPC ...
G01N 33/0031 (2013.01); G01N 33/004 (2013.01); G01N 33/0039 (2013.01); G01N 33/0062 (2013.01); G01N 33/0073 (2013.01); G01N 33/0037 (2013.01); G01N 33/0047 (2013.01); G01N 35/00871 (2013.01); G01N 2001/021 (2013.01); G01N 2033/0068 (2013.01); G01N 2035/00881 (2013.01);
Abstract
A portable communication device includes one or more miniature sensors to sense one or more environmental gases. A processor is coupled to the miniature sensors and is configured to enhance location detection by determining a sensor signal transition. The sensor signal transition is caused by subsequent exposures of at least one of the miniature sensors to environmental gases of a first air composition and a second air composition. The first air composition and the second air composition are respectively associated with a first location and a second location.