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:
Dec. 30, 2014
Filed:
Apr. 11, 2012
Karthik Yogeeswaran, Santa Monica, CA (US);
Yael Maguire, Somerville, MA (US);
Charles Gillen-o'neel, Los Angeles, CA (US);
Ameet V. Joshi, Playa Vista, CA (US);
Stacy Tantum, Durham, NC (US);
Matthew S. Reynolds, Seattle, WA (US);
Shwetak N. Patel, Seattle, WA (US);
Karthik Yogeeswaran, Santa Monica, CA (US);
Yael Maguire, Somerville, MA (US);
Charles Gillen-O'Neel, Los Angeles, CA (US);
Ameet V. Joshi, Playa Vista, CA (US);
Stacy Tantum, Durham, NC (US);
Matthew S. Reynolds, Seattle, WA (US);
Shwetak N. Patel, Seattle, WA (US);
Belkin International, Inc., Playa Vista, CA (US);
Abstract
Some embodiments concern a method of detecting usage of one or more electrical devices coupled to an electrical power line. An electrical power signal with a predetermined period is on the electrical power line. The one or more electrical devices place one or more noise signals on the electrical power line. The electrical power signal comprises the one or more noise signals. The method can include: using a data acquisition device to acquire first data about the electrical power signal on the electrical power line such that the acquiring of the first data is synchronized with the predetermined period of the electrical power signal; processing the first data to create frequency domain data; and applying a feature extraction algorithm to the frequency domain data to determine a transition of an electrical state of at least a first one of the one or more electrical devices. Other embodiments are disclosed.