Communications: electrical – Digital comparator systems
Patent
1977-09-26
1979-07-03
Pitts, Harold I.
Communications: electrical
Digital comparator systems
340168R, 340147SY, 340163, H04Q 1104
Patent
active
041602382
ABSTRACT:
A plurality of receivers which can be respectively addressed by addressing pulses provide reply pulses on a separate reply signal bus indicative of a single digit, or multi-digit binary response condition. To permit extended indication, the central station includes a holding stage which holds the output received from the reply receivers for the duration of a selection cycle during which the plurality of loads can be addressed, for example during a predetermined counted number of such cycles or during a predetermined counted number of pulses to permit averaging-type instruments to respond to said number of pulses --if present--or to permit extended indication of single digit binary output--if present.
REFERENCES:
patent: 3804986 (1974-04-01), Wakamatsu
patent: 4085403 (1978-04-01), Meier
Haubner Georg
Meier Werner
Weckenmann Albert
Wesemeyer Jurgen
Zobl Hartmut
Pitts Harold I.
Robert & Bosch GmbH
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