Cryptography – Equipment test or malfunction indication
Patent
1994-10-05
1997-03-25
Gregory, Bernarr E.
Cryptography
Equipment test or malfunction indication
380 23, 380 25, 380 49, H04L 900
Patent
active
056152612
ABSTRACT:
Detection of illicit radio frequency (RF) data transmissions is accomplished by employing an RF security monitor (120) positioned within the transmission range of a wireless communication system (101). As a first RF node (109) communicates data to a second RF node (111 ) via an RF communication path (115), the RF security monitor (120) monitors this communication to determine whether it is an illicit RF data communication. Illicit RF data communications may include, but are not limited to, a particular data type that should not be transmitted over a wireless channel, or data transmitted with an improper security level. When an illicit RF data communication occurs, the RF security monitor (120) sends a message to a data distributor (104) informing the data distributor (104) of the illicit RF transmission. Typically, the data distributor (104) will respond with an instruction as to how this and subsequent illicit RF transmissions are to be handled.
REFERENCES:
patent: 4672572 (1987-06-01), Alsberg
patent: 5204897 (1993-04-01), Wyman
patent: 5388211 (1995-02-01), Hornbuckle
Grube Gary W.
Markison Timothy W.
Rybicki Mathew A.
Gregory Bernarr E.
Moreno Christopher P.
Motorola Inc.
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