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. 05, 2006
Filed:
Jul. 24, 2003
Rolf J. Flen, Pequot Lakes, MN (US);
Stuart L. Haug, Hackensack, MN (US);
Matthew David Ruohoniemi, Pine River, MN (US);
Rolf J. Flen, Pequot Lakes, MN (US);
Stuart L. Haug, Hackensack, MN (US);
Matthew David Ruohoniemi, Pine River, MN (US);
Hunt Technologies, Inc., Peguot Lakes, MN (US);
Abstract
An endpoint processor includes a processor block, a timer block, a memory block, and analog-to-digital converter. The timer block is arranged to provide a time based signal to the processor block. The memory block cooperates with the processor block. The analog-to-digital converter is arranged to provide an interface between an analog signal and the processor block. The analog signal includes encoded data from a power signal. The processor block is arranged to control a sampling rate that is associated with the analog-to-digital converter such that the analog signal is down-converted as an under-sampled signal. The processor block is arranged to extract the encoded data from the down-converted signal by executing a digital signal processing algorithm that is stored in the memory block. The digital signal processing algorithm is arranged to reject fundamental and harmonic frequencies that are associated with a power-line frequency that is associated with the power signal.