Data compression rate control method and apparatus

Details Data compression rate control method and apparatus Data compression rate control method and apparatus

1995-03-24

1997-01-21

Bocure, Tesfaldet

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

375245, 375377, H04B 166, H04B 1406

Patent

active

055966020

ABSTRACT:
A data compression system can operate in a number of different configurations, and wherein the bit rate produced by a given configuration can be controlled over some finite range by a control signal from a rate controller for smoothly transitioning between the configurations so that discontinuous jumps in bit rate and distortion are minimized is provided by determining thresholds on the feedback control signals, the thresholds being used to determine when to switch in or out of each configuration; the thresholds furthermore being determined from the intersection points of the rate distortion curves for the available configurations.

REFERENCES:
patent: 4093962 (1978-06-01), Ishiguro et al.
patent: 4255763 (1981-03-01), Maxemchuk et al.
patent: 4821290 (1989-04-01), Hingorani et al.
patent: 4897855 (1990-01-01), Acampora
patent: 5506686 (1996-04-01), Auyeung et al.

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