Electrical transmission or interconnection systems – Personnel safety or limit control features – Interlock
Patent
1992-01-08
1994-03-01
Sikes, William L.
Electrical transmission or interconnection systems
Personnel safety or limit control features
Interlock
370 6, 361784, 361785, H03K 508
Patent
active
052910725
ABSTRACT:
In a transmission device having a first transmission path which is provided on a first printed circuit board and is connected to a connector, and over which a signal which does not vary with time is transmitted, and a second transmission path which is provided on a second printed circuit board and is connected to a second connector, and over which the above-mentioned signal is transmitted, a first resistor is connected to couple the second transmission path with a power supply of the second printed circuit board, and a first capacitor connected to couple the second transmission path with the ground. The first transmission path may also be grounded via a capacitor. The capacitive coupling to the ground will effectively ground the transmission path, and the crosstalk from another transmission path over which a signal which varies with time is transmitted is reduced.
REFERENCES:
patent: 2681384 (1954-06-01), Guanella
patent: 3980973 (1976-09-01), Hecken
patent: 4352179 (1982-09-01), Dabney
patent: 4508981 (1985-04-01), Dorler et al.
patent: 4937466 (1990-06-01), Osterkamp et al.
Mitsubishi Denki & Kabushiki Kaisha
Ouellette Scott A.
Sikes William L.
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