PREDICTION ENCODING DEVICE - MATSUSHITA ELECTRIC IND CO LTD

Title:

PREDICTION ENCODING DEVICE

Document Type and Number:

Japanese Patent JPS6471391

Kind Code:

A

Abstract:

PURPOSE:To reset a prediction loop so that a prediction error after the reset may be reduced by providing a selective input circuit to select one out of plural input signals by a pulsing signal. CONSTITUTION:When the pulsing signal to select an input value X is outputted from a selective control line 11, a selecting circuit 9 selectively outputs the input value X, and a selecting circuit 10 also outputs the input value X. When both decoding and encoding devices are reset, one out of two input lines 1 are set at the identical value for transmission and receiving. The identical value is made into the expected value to be inputted after the reset. The reset is realized by selecting the identical value set by a selective input circuit 2 and designating the input value X with the control line 11. Due to the reset, data to excellently predict the input value of a next time are entered both on a encoding side and a decoding side in a prediction group, prediction accuracy after the reset is improved, and transmission with high quality is attained.

Inventors:

YOKOTA HIROSHI
TANAKA TSUTOMU

Application Number:

JP22900387A

Publication Date:

March 16, 1989

Filing Date:

September 11, 1987

Export Citation:

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