Multiplex communications – Communication over free space – Combining or distributing information via frequency channels
Reexamination Certificate
2005-07-15
2010-11-30
Phan, Huy (Department: 2617)
Multiplex communications
Communication over free space
Combining or distributing information via frequency channels
C370S330000, C370S332000, C370S331000
Reexamination Certificate
active
07843894
ABSTRACT:
After a user device unsuccessfully attempts to establish upstream communication with a central network equipment downstream frequency to which it has tuned, an identifier corresponding to the tuned-to downstream frequency is removed from a cache of the user device. The frequency identifier stored in the cache typically corresponds to a frequency to which the user device has previously successfully tuned. The frequency identifier is removed from the cache after a predetermined attempt period, which may be determined by the number of attempts to establish communication that are made after previous unsuccessful attempts.
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ARRIS Group, Inc.
Phan Huy
Starr Robert J.
Van Aacken Troy A.
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