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. 02, 2008
Filed:
Nov. 07, 2005
Bruce B. Roesner, San Diego, CA (US);
Bruce B. Roesner, San Diego, CA (US);
ClarIDy Solutions, Inc., San Diego, CA (US);
Abstract
The present disclosure includes systems and techniques relating to fluid level detection. In general, in some implementations, a fluid level detector includes a radio frequency transmitter, and a plurality of radio frequency detectors arranged to receive radio frequency signals from the radio frequency transmitter when above a fluid level. The radio frequency transmitter and one or more multiple transmitting antennas can be configured to transmit ultra high frequency (UHF) RF signals. The radio frequency detectors can be radio frequency antennas, and the fluid level detector can include circuitry configured to receive signals from the radio frequency antennas. For example, the circuitry can include a decode array (e.g., a two dimensional diode array) coupled with the antennas, and a decoder (e.g., digital logic) coupled with the decode array.