Multiplex communications – Diagnostic testing – Loopback
Patent
1996-08-21
2000-09-12
Hsu, Alpus H.
Multiplex communications
Diagnostic testing
Loopback
370420, 370465, 370524, 370535, 348 12, 379 9306, 455 51, H04J 300, H04M 1106
Patent
active
061187666
ABSTRACT:
High-speed digital transmission can be achieved with existing phone lines and HDSL chipsets. Two original ISDN signals [4,5] at a rate of 160 kbps are multiplexed by a MICS card [6] of a signal provider [1]. The resulting digital signal is transported over a twisted cable pair [2] which has an approximate maximum length of 16 kft. At a receiving end, the signal is demultiplexed and regenerated by a subscriber's MICS card [7]. The subscriber's MICS card is line-powered via the cable [2] to avoid dependence upon local power. The regenerated signals are transmitted over two ISDN cables to remote premises which can be as far as 18 kft away.
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GoDigital Networks Corporation
Hsu Alpus H.
Oh Seong-Kun
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