The principles involved in producing a Pulse Code Modulation communications system are explained. Topics include sampling, quantising, and regeneration, plus a useful outline of digital hierarchies that have evolved on both sides of the Atlantic and in Japan.
Hewlett-Packard Media Solutions, 3000 Hanover St., Palo Alto, CA 94304-1185, Phone: (650)857-1501, Fax: (650)857-5518
Available on VHS
Running time 38 minutes.
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