Electrical transmission or interconnection systems – Switching systems – Switch actuation
Patent
1991-10-23
1993-11-02
Gaffin, Jeffrey A.
Electrical transmission or interconnection systems
Switching systems
Switch actuation
307 39, 307 40, 307125, H01H 900
Patent
active
052586553
ABSTRACT:
The apparatus allows the connection of two peripherals to a host device through one port and switching between them. The apparatus includes a sensor for sensing a data signal from the second peripheral device and a switch responsive to the sensor. The switch in a default, first state connects the first peripheral device to the host device and in a second state disconnects the first peripheral device therefrom. If a second peripheral device is connected to the apparatus, the sensor senses a data signal from the device and communicates this sensing to the switch. The switch responds by disconnecting the first device from the host device, leaving the second device solely connected to the host device. If the second peripheral device is disconnected from the apparatus, the switch reconnects the first peripheral device to the host device.
REFERENCES:
patent: 4674031 (1987-06-01), Siska, Jr.
patent: 4682294 (1987-07-01), Duc et al.
patent: 4956561 (1990-09-01), Tamer
"Smart Switches save money, boost productivity & make your job easier." INMAC.RTM., Jun. 1991 catalog. pp. 60 and 61.
Harper Steven L.
May Gregory J.
Gaffin Jeffrey A.
Hewlett--Packard Company
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