Signal conversion apparatus for use in PCM signal processing sys

Details Signal conversion apparatus for use in PCM signal processing sys Signal conversion apparatus for use in PCM signal processing sys

1984-06-18

1986-02-11

Roskoski, Bernard

Communications: electrical

Audible indication

Percussion-type sound producer

340347SH, 340347DA, 370119, 328151, H04J 306

Patent

active

045701539

ABSTRACT:
A signal conversion apparatus for use in a PCM signal processing system in which a series of multi-bit digital signals is produced through sampling and quantization of a multi-channel analog signal. The series of multi-bit digital signals includes groups of multi-bit digital signals being representative of respective analog signal portions constituting the multi-channel analog signal. The apparatus comprises a translating section for producing substitutional multi-bit digital signals from at least one of the groups of digital signals corresponding to at least one analog signal portion, which substitutional digital signals represent amplitudes of the one analog signal portion at sampling points different from those at which the one analog signal was sampled to provide the one group of digital signals. The substitutional digital signals are substituted, in the translating section, for the one group of the digital signals to produce a corresponding group of sampling point-shifted multi-bit digital signals. The resulting PCM multi-bit digital signals are acceptable by digital-to-analog conversion processor requiring PCM digital signals generated through sampling at shifted or different sampling points as compared with the above-mentioned series of digital signals.

REFERENCES:
patent: 1772165 (1930-08-01), Taylor et al.
patent: 4005276 (1977-01-01), Abramson et al.
patent: 4271508 (1981-06-01), Schenk
patent: 4477900 (1984-10-01), Gruenberg

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