Communications: directive radio wave systems and devices (e.g. – Combined with diverse type radiant energy system – With radio voice communication
Reexamination Certificate
2005-05-10
2005-05-10
Sotomayor, John B. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Combined with diverse type radiant energy system
With radio voice communication
C342S057000, C342S159000, C455S296000
Reexamination Certificate
active
06891496
ABSTRACT:
Radar Pulse detection and radar signal length detection are used to detect and provide information for identifying radar signals. Pulse detection estimates a radar pulse size when it is too short for meaningful measurement. Pulse detection identifies a radar by identification of an in-band pulse without a communication or data packet encoded therein, or a communication error is detected with the in-band pulse. Signal length detection counts the length of a received signal after the received signal exceeds a radar threshold. The count identifies the received signal length upon drop of the power. The signal is identified as a radar when the power drops before a PHY error occurs, or when the power drop occurs after a PHY error and a delay time equivalent to the shortest radar signal. A radar signal is also identified upon a timeout wait for a power drop after a PHY error.
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Husted Paul
McFarland William J.
Thompson John
Zhang Xiaoru
Alsomiri Isam
Atheros Communications Inc.
Carpenter John W.
Reed Smith LLP
Sotomayor John B.
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