Sequential analog/digital data multiplexing system and method

Details Sequential analog/digital data multiplexing system and method Sequential analog/digital data multiplexing system and method

1991-03-14

1992-12-01

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With calculation

34082554, 34082508, 340505, G08B 2600

Patent

active

051682737

ABSTRACT:
An analog and digital data-gathering system where the data gathering remote device or sequencer units are serially connected such that initially only the device closest to a control unit is powered and other data-gathering devices in the system are sequentially switched into circuit as each such remote device or sequencer unit responds to polling signals from the control unit. The system initially measures the signal from the wiring to a remote device or sequencer unit without the device being activated in order to determine the noise level present in the circuit wiring. The corresponding remote device is then activated by being interrogated or polled after that noise level has been determined.

REFERENCES:
patent: 4603318 (1986-07-01), Philp
patent: 4612534 (1986-09-01), Buehler
patent: 4727359 (1988-02-01), Yuchi
patent: 4742335 (1988-05-01), Vogt
patent: 5045851 (1991-09-01), Davis, III

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