Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Adaptive prediction differential PCM-type transmission apparatus and process with shaping of the quantization noise

Adaptive prediction differential PCM-type transmission apparatus and process with shaping of the quantization noise

US Patent 4385393 · Granted May 24, 1983

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method of eliminating ground echoes for a meteorological radar2012
Method of determining the velocity field of an air mass by high resolution doppl2009
Method and system of correcting spectral deformations in the voice, introduced b2008
Device for digital processing with frequency filtering and reduced computation c2005
Method of measuring the error rate of an optical transmission system and apparat2004
Method for cancelling multi-channel acoustic echo and multi-channel acoustic ech2003
Method and device for the optimized processing of a disturbing signal during a s2000
Echo cancelling device with frequency sub-band filtering1990
Adaptive predicting circuit using a lattice filter and a corresponding different1983
Device for following and estimating the local state of picture contours1982
Adaptive prediction differential-PCM transmission method and circuit using filte1982