H - Electricity – 04 – L
Patent
H - Electricity
04
L
340/168
H04L 25/49 (2006.01)
Patent
CA 1163345
1 PHN 9425 ABSTRACT: A transmission system for the transmission of binary data symbols. It is known to use bi-phase modu- lations for the transmission by way of cables in a fre- quency band from 0 Hz to twice the bit rate. This method is not optimum as regards the intersymbol interference and the signal-to-noise ratio. Described is a so-called "crankshaft code" which, in combination with a receiver having a special filter characteristic enables a more optimum signal detection, independent of the cable char- acteristic. The system is used for digital transmission over cables in the local telephone network.
349583
Gerwen Petrus J. Van
Snijders Wilfred A.m.
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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