Coded data generation or conversion – Analog to or from digital conversion – Multiplex
Patent
1994-08-22
1997-12-30
Young, Brian K.
Coded data generation or conversion
Analog to or from digital conversion
Multiplex
H03M 112
Patent
active
057035849
ABSTRACT:
An analog data acquisition system in an integrated circuit automatically processes and stores analog data without sequencing support from a processor. The analog data acquisition system converts each analog input signal into digital data. The digital data are stored in registers in the integrated circuit that are directly readable by a digital signal processor without data moves and are directly usable by the digital signal processor without further processing or conversion. Consequently, the analog data acquisition system minimizes the use of both the digital signal processor and the digital signal processor program memory and leaves capacity, i.e., both processing time and instruction memory locations, for use in other activities. The analog data acquisition system includes an analog input multiplexer and an analog-to-digital (A/D) converter that has an input line that is connected to the analog input multiplexer output line. An acquisition sequencer provides signals to the analog input multiplexer so that a signal on one of the plurality of input lines to the analog input multiplexer is applied to the A/D converter.
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Adaptec, Inc.
Gunnison Forrest E.
Young Brian K.
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