Code conversion system

Details Code conversion system Code conversion system

1983-11-14

1985-08-06

Kemeny, E. S Matt

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

G10L 100

Patent

active

045340552

ABSTRACT:
In a code conversion system comprising an encoder and a decoder in combination, the encoder comprises an input terminal for receiving a multi-level time series signal having at least three signal levels subject to a variation of occurrence frequency of levels, a circuit for detecting the highest occurrence frequency signal ("HOFS") level of said multi-level time series signal and generating a first code representative of the run-lengths of said HOFS level, a circuit for generating a second code representative of the individual levels of said multi-level time series signal, and a circuit for combining said codes from said first and second code generation circuits on the time series, and wherein the decoder comprises a circuit for separating the first and second codes and decoding the separated first and second codes into the original multi-level time series signal.

REFERENCES:
patent: 4053930 (1977-11-01), Ogawa
patent: 4121259 (1978-10-01), Preuss et al.
patent: 4136363 (1979-01-01), Saran
patent: 4270148 (1981-05-01), Adachi

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