Title :
An Adaptive Delta Modulator with Overshoot Suppression for Video Signals
Author_Institution :
University College, London, England
fDate :
3/1/1973 12:00:00 AM
Abstract :
An adaptive delta modulator for television signals has been implemented in which the step magnitude depends on the four most recent sign bits. Overshoot limits the largest step size that can be used: to overcome this limitation an overshoot suppression scheme has been devised, considerably improving picture quality. An adaptive 2-bit differential pulse-code modulation (DPCM) system is also described.
Keywords :
Adaptive modulation; Bandwidth compression; Delta modulation; TV modulation; differential pulse-coded modulation (DPCM); Adaptive systems; Communications Society; Councils; Data communication; Delta modulation; Impedance matching; Physics; Pulse modulation; Signal to noise ratio; TV;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOM.1973.1091633
