Nonuniform translation between analog and digital signals by a p

Details Nonuniform translation between analog and digital signals by a p Nonuniform translation between analog and digital signals by a p

1974-07-15

1979-03-06

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

H03K 1302

Patent

active

041433637

ABSTRACT:
A weighted resistance network under control of combinational and sequential logic circuits provides a separate reference voltage at each of the digit times of the pulse code for comparison with an amplitude sample at the coder input. The difference voltage is used to derive the pulse code which is compressed in a piece-wise manner because of the use of a weighted resistance network. A decoder operates in a similar manner to produce a quantized output from a weighted network under control of a logic circuit responsive to the incoming uniform pulse code.

REFERENCES:
patent: 3016528 (1962-01-01), Villars
patent: 3180939 (1965-04-01), Hall
patent: 3234544 (1966-02-01), Marenholtz
patent: 3487304 (1969-12-01), Kennedy
patent: 3510868 (1970-05-01), Chatelon
patent: 3544993 (1970-12-01), Gabriel
patent: 3573795 (1971-04-01), Bowers
patent: 3573802 (1971-04-01), Kawashima
patent: 3582941 (1971-06-01), Le Maout

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