Pulse or digital communications – Repeaters – Testing
Patent
1991-06-11
1993-08-10
Kuntz, Curtis
Pulse or digital communications
Repeaters
Testing
375 36, 307270, H04L 2534
Patent
active
052356175
ABSTRACT:
A transmission media driving system for receiving high data rate serial binary data signal, dividing the signal into two or more lower data rate signal paths, modified duobinary encoding the signals and transmitting the signals on respective two-conductor transmission lines. The system includes ample encoding circuits for generating control signals and a line driver circuit, associated with each encoding circuit, that is responsive to the control signals to drive one of the transmission lines with the modified duobinary encoded signal through a transformer. The driver circuit includes multiple current sources that are switched to conducting or nonconducting states in response to the control signals to drive currents through a primary winding of the transformer to achieve appropriate levels of the encoded signal.
REFERENCES:
patent: 3456206 (1969-07-01), Kwartiroff et al.
patent: 3465101 (1969-09-01), Christian et al.
patent: 3733550 (1973-05-01), Tazaki et al.
patent: 3836904 (1974-09-01), Cross
patent: 3969639 (1976-07-01), Granberg et al.
patent: 3980826 (1976-09-01), Widmer
patent: 3993953 (1976-11-01), Lender et al.
patent: 4083005 (1978-04-01), Looscher
patent: 4101734 (1978-07-01), Dao
patent: 4271526 (1981-06-01), Flora
patent: 4437021 (1984-03-01), Sumi et al.
patent: 4606046 (1986-08-01), Ludwick
patent: 4627073 (1986-12-01), Shepperd et al.
patent: 4748346 (1988-05-01), Emori
patent: 4945258 (1990-07-01), Picard et al.
patent: 5077756 (1991-12-01), Christophersen
"A Survey of Coding Schemes for Transmission or Recording of Digital Data" by Kobayashi, IEEE Transactions on Communication Technology, vol. COM-19, No. 6, Dec. 1971, pp. 1087-1100.
"Corrective Data Transmission with Coherent Recovery Using Absolute Reference" by Lender, IEEE Transactions on Communication Technology, vol. COM-16, No. 1, Feb. 1968, pp. 108-115.
"Sequence-State Coding for Digital Transmission" by Franaszek, The Bell System Technical Journal, Nov. 1967, pp. 143-157.
"Digital Communications: Microwave Applications" by Feher, Chapter 7, p. 150.
Digital Equipment Corporation
Ghebretinsae T.
Johnston A. Sidney
Kuntz Curtis
Young Barry N.
LandOfFree
Transmission media driving system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Transmission media driving system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission media driving system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1731716