Jump to content

Talk:Pulse-code modulation/Old history

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia
This is an old revision of this page, as edited by 217.162.168.2 (talk) at 01:48, 16 May 2002 (*</b>). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Pulse-code modulation (PCM): Modulation in which a signal is sampled, and the magnitude (with respect to a fixed reference) of each sample is quantized and digitized for transmission over a common transmission medium.

Note 1: In conventional PCM, before being digitized, the analog data may be processed (e.g., compressed), but once digitized, the PCM signal is not subjected to further processing (e.g., digital compaction) before being multiplexed into the aggregate data stream.

Note 2: PCM pulse trains may be interleaved with pulse trains from other channels.

Source: from Federal Standard 1037C and from MIL-STD-188