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.

Date of Patent:
Jan. 17, 2023

Filed:

Aug. 08, 2019
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Vijendrakumar K. Ashiwal, San Jose, CA (US);

Sireesha Ramisetti, Sunnyvale, CA (US);

Chia-Chi Chen, Milpitas, CA (US);

Vusthla Sunil Reddy, Cupertino, CA (US);

Peter M. Agboh, Burlingame, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 22/00 (2006.01); G01N 33/00 (2006.01); G01S 13/88 (2006.01);
U.S. Cl.
CPC ...
G01N 22/00 (2013.01); G01N 33/0027 (2013.01); G01S 13/887 (2013.01);
Abstract

Embodiments are disclosed for terahertz spectroscopy and imaging in dynamic environments. In an embodiment, a method comprises using a sensor of an electronic device to determine an orientation of the electronic device. A transmitter of the electronic device emits an electromagnetic (EM) wave in a terahertz (THz) frequency band into a dynamic environment according to a power duty cycle that is determined at least in part by the orientation. A receiver of the electronic device receives a reflected EM wave from the environment. A spectral response of the reflected EM wave is determined that includes absorption spectra that is indicative of the transmission medium in the environment. The absorption spectra are compared with known absorption spectra of target transmission mediums. Based on the comparing, a particular target transmission medium is identified as being the transmission medium in the environment, and a concentration level of the identified target transmission medium in the environment is determined.


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