Patent · US Active

Loop powered current-loop wireless transmitter

US7684768B1 · kind B1 · utility

6Cited by

6References

20Claims

0Family size

Inventors

Otto P. Fest · Tucson, US
Noel Smith · Tucson, US

Key dates

Filing date	Jun 19, 2007
Grant date	Mar 23, 2010
Priority date	—
Expiry date	Oct 30, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH04B1/04
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A self-powered current loop transmitter transmits a process variable over a wireless link, deriving operating power from the current which drives the loop. A storage capacitor is connected across the system input terminals through a switch to provide the operating power for the system components.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.