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:
May. 31, 2016
Filed:
May. 02, 2014
Applicant:
At&t Intellectual Property I, L.p., Atlanta, GA (US);
Inventors:
Assignee:
AT&T INTELLECTUAL PROPERTY I, L.P., Atlanta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); G06F 17/00 (2006.01); H04W 4/14 (2009.01);
U.S. Cl.
CPC ...
H04W 4/14 (2013.01);
Abstract
A method and system for identifying short message service (SMS) spammers identifies senders as spammers by determining that the senders are sending SMS messages to devices included in a grey phone space. Devices in the grey phone space are identified using various methods including an analysis of call detail records. A grey ratio for a sender is determined as a ratio of messages sent to grey phone numbers by the sender to messages sent to all phone numbers by the sender. A sender is identified based on a difference between the grey ratio for the sender and a second grey ratio being above a threshold.