Pulse or digital communications – Transceivers – Loopback mode
Patent
1995-12-04
1999-02-09
Pham, Chi H.
Pulse or digital communications
Transceivers
Loopback mode
370249, H04B 138, H04L 516
Patent
active
058704280
ABSTRACT:
An adaptive digital data unit (600) initiates and successfully completes a remote loop back test. The adaptive digital data unit (600) has a controller (610), a local transmitter (620), a local receiver (640) a timer (622) and a detector (634). When a remote adaptive digital data unit (600) transmits a first data sequence and a second data sequence, the local adaptive digital data unit (600) receives the second data sequence from the remote digital data unit and determines if the second data sequence matches one of two predetermined data sequences. If so, a test successful flag is generated.
REFERENCES:
patent: 4686668 (1987-08-01), Koseki et al.
patent: 5115451 (1992-05-01), Furlong
patent: 5347522 (1994-09-01), Ohmori
Barrett Robert A.
Miller David E.
Wilder David E.
Motorola Inc.
Pham Chi H.
Powell John
Webster Bryan
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