Pulse or digital communications – Repeaters – Testing
Patent
1991-06-28
1994-09-13
Chin, Stephen
Pulse or digital communications
Repeaters
Testing
455143, H04L 2549
Patent
active
053475429
ABSTRACT:
In a system where 2-level modulation and 4-level modulation of communication signals exist, an apparatus (107) demodulates either modulation scheme by demodulating (301) a received signal under the presumption that it is a 4-level signal, and if the received signal is detected (309) to be a 2-level signal, the signal is then demodulated (319) as a 2-level signal.
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Beyer Donald R.
Davies-Walsh Anne P.
Fluharty Kevin L.
Kurby Christopher N.
Miller Matthew R.
Chin Stephen
Egan Wayne J.
Lukasik Susan L.
Motorola Inc.
Parmelee Steven G.
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