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:
Sep. 29, 2015
Filed:
Jun. 30, 2012
Richard D. Roberts, Hillsboro, OR (US);
Praveen Gopalakrishnan, Hillsboro, OR (US);
Mathys C. Walma, Hillsboro, OR (US);
Lei T. Yang, Hillsboro, OR (US);
Richard D. Roberts, Hillsboro, OR (US);
Praveen Gopalakrishnan, Hillsboro, OR (US);
Mathys C. Walma, Hillsboro, OR (US);
Lei T. Yang, Hillsboro, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Embodiments may communicate via an electromagnetic radiator, or light source, that can be amplitude modulated such as light emitting diode lighting via receivers that can determine data from light received from the radiator. Some embodiments decode data of a packet transmitted from modulated lighting by means of a device with a low sampling frequency such as a relatively inexpensive camera. Many embodiments determine locations of start frame delimiters in packets. Several embodiments implement repeat decoding on packets of the same data to reduce packet error rates. Some embodiments are intended for indoor navigation via photogrammetry using self-identifying light anchors. In many embodiments, the data signal may be communicated via the light source at frequencies causing flicker that is not perceivable to the human eye.