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:
Oct. 27, 2009
Filed:
Jun. 12, 2007
Fritz Heistermann, Hauppauge, NY (US);
Fritz Heistermann, Hauppauge, NY (US);
DGI Creations, LLC, Raleigh, NC (US);
Abstract
An apparatus and method for use by a receiver in decoding information sent by phase-shift keying over a carrier frequency for use with power line carrier (PLC) applications as it is adapted to appropriately position the sampling window based on a zero crossing of one of the phases of the power line. The method allows for receipt and processing of information on more than one carrier frequency and from transmitters operating on a phase of the power line that is different than the phase used by alternating current at the power grid frequency on the receiver to detect the zero crossings of the power line. Optionally, a threshold parameter may be dynamically adjusted in reaction to the underlying level of noise so as to reduce the number of bursts carrying actual data that are discarded as having only noise. A number of alternative embodiments are included.