Boots – shoes – and leggings
Patent
1977-07-13
1979-04-17
Chapnick, Melvin B.
Boots, shoes, and leggings
G06F 304
Patent
active
041504380
ABSTRACT:
An interface circuit for use in a data transmission system has a first port for connection to a 16 wire data highway of the type proposed by the I.E.C. (International Electrochemical Commission) for the interconnection of instruments, and a second port capable of being connected to an eight-wire or two-wire data link. The interface circuit includes an encoding circuit operative to encode at least some commands applied to the first port, and an enabling circuit for selectively enabling data applied to the data terminals of the first port and the encoded commands to pass to the second port. The interface circuit also includes status circuits for establishing statuses of the circuit in accordance with commands supplied thereto, including a status indicating that the interface has been addressed, and a circuit responsive to the absence of this "addressed" status to disable the enabling circuit, so as to prevent at least some of the encoded commands and the data received at the data terminals of the first port from being passed to the second port.
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patent: 4065662 (1977-12-01), Garczynski et al.
Cooke Robert J.
Dorey Howard A.
Spooner Michael I.
Chapnick Melvin B.
Manzo Edward
Novack Martin
Sherman W. R.
The Solartron Electronic Group Ltd.
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