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. 16, 2004
Filed:
Feb. 28, 2001
Applicant:
Inventor:
Michael P. Spratt, Bristol, GB;
Assignee:
Hewlett-Packard Development Company L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04H 1/14 ;
U.S. Cl.
CPC ...
H04H 1/14 ;
Abstract
Information with local relevance is diffused locally using mobile devices equipped with non-wired short-range communication means, the information being propagated from an originating point in messages passed from device to device in an unstructured way. The devices implement measures for limiting message propagation. For a device that is arranged to propagate a received message multiple times, these measures include increasing (75) the interval between retransmissions in dependence on how many times the same message has been received by the device either in total or during a recent period.