Boots – shoes – and leggings
Patent
1986-07-24
1989-02-21
Lall, Parshotam S.
Boots, shoes, and leggings
34082504, H04Q 914
Patent
active
048071498
ABSTRACT:
The measuring units of a measuring system are combined in groups each with a respective selecting unit. A cable, into which the measuring and selecting units are integrated, connects these one with the other and with a central control unit which, by emission of encoded selecting unit setting and address signals activates the selecting units individually so that these prepare the measuring units of their group for the reception of measuring unit setting and address signals from the cental control unit. The address signals each consist of respective pulse sequences which are decoded by programmed reception circuits. The pulses for the measuring units differ from the pulses for the selecting units by their pulse width. Employed as measuring sensors are current sources which on activation of their measuring unit are connected to a voltage supply and thereupon impress a measurement current, which varies with the magnitude to be measured, into a measurement line wire of the cable leading to the central control unit. The measuring and selecting units comprise current-limiting and buffer curcuits, which limit short-circuit currents and enven out the current loading of the cable. Signal-shaping circuits in the selecting units prepare the pulses and feed them into the next line portions.
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Lall Parshotam S.
Melnick S. A.
MITEC Moderne Industrietechnik GmbH
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