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. 29, 2013
Filed:
Apr. 10, 2008
Wallace A. Pratt, Jr., Pflugerville, TX (US);
Mark J. Nixon, Round Rock, TX (US);
Eric D. Rotvold, West St. Paul, MN (US);
Robin S. Pramanik, Karlsruhe, DE;
Tomas P. Lennvall, Vasteras, SE;
Wallace A. Pratt, Jr., Pflugerville, TX (US);
Mark J. Nixon, Round Rock, TX (US);
Eric D. Rotvold, West St. Paul, MN (US);
Robin S. Pramanik, Karlsruhe, DE;
Tomas P. Lennvall, Vasteras, SE;
Hart Communication Foundation, Austin, TX (US);
Abstract
A method of providing a wireless extension to a wired protocol for transferring data to and from a field device operating in a process control environment via a wired connection, wherein the wired protocol and the wireless extension to the wired protocol have at least one protocol layer in common includes associating a unique address consistent with an addressing scheme of the wired protocol with each of a plurality of wireless devices operating in the process control environment and forming a wireless network, such that a data packet is routed between two of the plurality of wireless devices based on the unique address; associating a network identifier with the plurality of wireless devices; forming, for each of the plurality of wireless devices, a global address including the respective unique address and the network identifier in accordance with a second addressing scheme; and providing access to an external host operating outside the wireless network to each of the plurality of wireless devices based on the global address associated with the wireless device specified at the external host.