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Video Transmission by Delta Modulation Using Tunnel Diodes

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2 Author(s)
Balder, J.C. ; Philips Research Laboratories, N. V. Philips'' Gloeilampenfabrieken, Eindhoven, The Netherlands ; Kramer, C.

A method is described which enables video signals to be transmitted by the pulse code modulation system known as delta-modulation. A tunnel-diode balanced pair (Goto pair) is used for converting the video signal into a binary signal. With a new and very simple circuit, operating at a bit rate of 100 Mc, a ratio of signal-to-quantizing noise of 42 db is obtained. A more conventional circuit, that combines tunnel-diodes with transistors, makes an even lower quantizing noise possible.

Published in:

Proceedings of the IRE  (Volume:50 ,  Issue: 4 )