Patent ID: 11863367
Assignee: nan
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 0:
1. A method of additional processing applied to multimedia
codecs, audio, image and video compression methods,
based solely on FFT, Fast Fourier Transform,
using the largest points, the foreground,
and the most energetic bands, the background,
being able to use only a the largest local peaks field with or without phases,
and being able to ignore the phases in the background,
comprising:
adding phases and using them to transport the values of the displacements of the local points and peaks in order to reduce the bandwidths, by generating a very narrow bandwidth signal;
creating and transmitting UNB (Ultra Narrow Bandwidth) frames;
adding phases in the background and using them to transport the points of the foreground in order to reduce the crest factor, by transporting the data directly into the reintroduced phases associated with the points;
implementing the virtual decimation in the background bands and transmitting the entire frame with background bands.