Digital code converter formed of a decreased number of circuit e

Details Digital code converter formed of a decreased number of circuit e Digital code converter formed of a decreased number of circuit e

1988-10-31

1990-05-08

Shoop, Jr., William M.

Coded data generation or conversion

Digital code to digital code converters

Byte length changed

341102, 341122, H03M 730

Patent

active

049242237

ABSTRACT:
A code converter includes a signal converter converting an input digital signal into an intermediate digital signal of two's complement. A subtracter has a minuend input node, receiving lower bits of the intermediate digital signal, and a subtrahend input node. A digital integrator receives an output from the subtracter, a digital comparator receives an output from the digital integrator, a delay unit receives an output from the digital comparator to execute a one-sampling period delay. An output from the delay unit is applied to the subtrahend input node of the subtracter, and an adder receives the remaining upper bits of the intermediate digital signal and the output from the digital comparator, a converted output digital signal being produced from the adder.

REFERENCES:
patent: 4520347 (1985-05-01), Cambell, Jr.
patent: 4623874 (1986-11-01), Thoma
patent: 4704600 (1987-11-01), Uchimura et al.
patent: 4706265 (1987-11-01), Furukawa

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