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:
Mar. 28, 2006
Filed:
Aug. 20, 2001
Dan Raphaeli, Kfar Saba, IL;
Evgeny Bassin, Beer Sheva, IL;
Mordechai Mushkin, Nirit, IL;
Oren Kaufman, Beer Sheva, IL;
Tanya Rosing, Beer Sheva, IL;
Dan Raphaeli, Kfar Saba, IL;
Evgeny Bassin, Beer Sheva, IL;
Mordechai Mushkin, Nirit, IL;
Oren Kaufman, Beer Sheva, IL;
Tanya Rosing, Beer Sheva, IL;
Yitran Communications Ltd., Beer Sheva, IL;
Abstract
A novel and useful mechanism for detecting intrusion and jamming attempts by an imposter node. A time window defined as an emergency window is reserved after the end of a packet and before an acknowledgement window. Nodes that detect the presence of an intruder transmit an emergency packet during the emergency time window to inform the receive node that the packet it received was sent from an imposter node. Attempts to jam the transmission of the emergency packet from the victim node to the receive node are detected by listening during the emergency window time period for carrier signal that indicates that an emergency packet is trying to be sent. An emergency packet request message is sent by the receive node in response which causes the victim node to resend the emergency packet.