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:
Feb. 21, 2012
Filed:
Sep. 28, 2007
Sherman Chih Lo, San Mateo, CA (US);
Per Enge, Mountain View, CA (US);
C. O. Lee Boyce, Jr., Studio City, CA (US);
Nicolai V. Alexeev, San Carlos, CA (US);
Dan Boneh, Palo Alto, CA (US);
Sherman Chih Lo, San Mateo, CA (US);
Per Enge, Mountain View, CA (US);
C. O. Lee Boyce, Jr., Studio City, CA (US);
Nicolai V. Alexeev, San Carlos, CA (US);
Dan Boneh, Palo Alto, CA (US);
The Board of Trustees of the Leland Stanford Junior University, Palo Alto, CA (US);
Abstract
Location systems and methods are implemented using a variety of arrangements and methods. Using one such system location information is provided in response to a utility-line arrangement propagating signals that represent a wireless radio-frequency (RF) communication originating from one or more remote transmitters. The system includes a receiver circuit communicatively coupled and responsive to the utility-line arrangement. The system also includes a signal-processing logic circuit, communicatively coupled and responsive to the utility-line arrangement. The signal processing logic circuit is arranged to derive location information from characteristics of the signals that are indicative of a location of the receiver circuit relative to the remote transmitters.