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:
Nov. 06, 1990
Filed:
Nov. 25, 1988
Armas C Markkula, Jr, Woodside, CA (US);
Wendell B Sander, Los Gatos, CA (US);
Shabtai Evan, Saratoga, CA (US);
Stephen B Smith, Scotts Valley, CA (US);
William B Twitty, Santa Cruz, CA (US);
Echelon Systems Corporation, Palo Alto, CA (US);
Abstract
A network for sensing, communicating and controlling employing a plurality of cells which communicate through packets. First cells are assigned an announcer function, others a listener function with at least one announcer or listener cell also performing the function of repeating at least some of the packets. The cells are organized into groups, each group being assigned a group function. Group identification numbers are included in the packets to allow the cells for a particular group to identify packets intended for it.