Communications: electrical – Continuously variable indicating – With meter reading
Patent
1985-12-02
1988-03-29
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
340825140, 370 84, H04J 316, H04Q 1104
Patent
active
047346965
ABSTRACT:
Parallel signals which are to be converted to serial form by successive time-multiplex sampling are divided into two sets, a low-priority set which change relatively infrequently and hence require resampling at only a relatively low rate, and a high-priority set which can change more rapidly and hence require more prompt sampling upon the occurrence of a change in signal value. The low-priority signals are normally sampled and transmitted sequentially at a suitable relatively low rate, but upon the occurrence of a significant change in any of the set of high-priority signals, the sampling and transmission of the low-priority signals is automativelly interrupted and the high-priority signals are sampled and transmitted instead, after which sampling and transmission reverts to the low-priority signals. The net result is that a smaller transmission channel bandwidth can be used than if all signals were transmitted at a regular rate suitable for the high-priority signals.
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Free Albert L.
Telenex Corporation
Yusko Donald J.
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