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:
Apr. 07, 2009
Filed:
Jun. 22, 2006
Mark K. Cornwall, Spokane, WA (US);
Bruce N. Weyrauch, Spokane Valley, WA (US);
Mark K. Cornwall, Spokane, WA (US);
Bruce N. Weyrauch, Spokane Valley, WA (US);
Itron, Inc., Liberty Lake, WA (US);
Abstract
The present disclosure introduces a simple method for an Automated Meter Reading (AMR) system for determining quantities of a consumed utility product including electric, gas, and water service, using wireless data transfer. To compensate for the frequency drifts of the transmitters, the embodiments of this invention, with minimum pre-processing of the received data, allow for on-the-fly adjustability of the receiver bandwidth by merely changing a pre-calculated weighting function. As such, it is possible to use a fixed size Discrete Fourier Transform (DFT), or in particular a fixed N-point Fast Fourier Transform, for signals of different bandwidths.