Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1991-01-07
1993-05-25
Sikes, William L.
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
328 56, 333 20, H03K 3335, H04B 304
Patent
active
052143180
ABSTRACT:
A semiconductor integrated circuit device has, in one embodiment, a pair of signal transmission lines formed over and insulated from a semiconductor substrate, a first circuit formed in the semiconductor substrate and electrically connected with one end of the pair of signal transmission lines for sending an electric signal, and a second circuit formed in the semiconductor substrate and electrically connected with the other end of the pair of signal transmission lines for receiving the electric signal propagating over the transmission line pair. A control resistance is electrically connected between the pair of transmission lines at the above-mentioned other end for controlling a delay time of the signal propagating over the pair of signal transmission lines between the opposite ends of the pair of signal transmission lines.
REFERENCES:
patent: 4593211 (1986-06-01), Belforte
patent: 4626889 (1986-12-01), Yamamoto et al.
patent: 4980580 (1990-12-01), Ghoshal
patent: 5027013 (1991-06-01), Coy et al.
Sedra et al., "Microelectronic Circuits", CBS College Publishing, 1987, p. 946.
Masaki Akira
Nakanishi Keiichirou
Osanai Mararu
Usami Mitsuo
Yamada Minoru
Hitachi , Ltd.
Sikes William L.
Tran Toan
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