System for analog-digital-analog conversion

Details System for analog-digital-analog conversion System for analog-digital-analog conversion

1989-07-14

1991-10-22

Smith, Jerry

Boots, shoes, and leggings

341110, G06J 712

Patent

active

050601784

ABSTRACT:
Control circuit, which is connected to a data processor, a D-A converter, such as a current integration type adaptive delta demodulator, and a data processing mode change command terminal, attenuates output from the data processor in response to a data processing mode change command from the data processing mode change command terminal while delaying the data processing mode change command by a first prescribed time to supply the command to the D-A converter and releasing the attenuation of the output of the data processor after a lapse of a second prescribed time which is longer than the first prescribed time. Thus, no instable output data from the data processor appear at the output of the D-A converter so that no noise is caused.

REFERENCES:
patent: 4087754 (1978-05-01), Song
patent: 4355304 (1982-10-01), Kasuga et al.
patent: 4542369 (1985-09-01), Kasuga
patent: 4811019 (1989-03-01), Julstrom et al.
patent: 4811097 (1989-03-01), Ritter et al.
patent: 4839923 (1989-06-01), Kotzin
patent: 4843391 (1989-06-01), Lernout
patent: 4851842 (1989-07-01), Iwamatsu
patent: 4901077 (1990-02-01), Christopher
patent: 4931796 (1990-06-01), Hasegawa et al.
patent: 5001480 (1991-03-01), Ferry et al.

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