Electrical computers and digital data processing systems: input/ – Input/output data processing – Input/output access regulation
Patent
1999-02-04
2000-08-29
Dinh, Dung C.
Electrical computers and digital data processing systems: input/
Input/output data processing
Input/output access regulation
345113, 345327, 348589, G06F 1314, G06F 3153
Patent
active
061122645
ABSTRACT:
A computerized switching system for coupling a workstation to a remotely located computer. A signal conditioning unit receives keyboard and mouse signals generated by a workstation and generates a data packet which is transmitted to a central crosspoint switch. The packet is routed through a crosspoint switch to another signal conditioning unit located at a remotely located computer. The second signal conditioning unit applies the keyboard and mouse commands to the keyboard and mouse connectors of the computer as if the keyboard and mouse were directly coupled to the remote computer. Video signals produced by the remote computer are transmitted through the crosspoint switch to the workstation. Horizontal and vertical sync signals are encoded on to the video signals to reduce the number of cables that extend between the workstation and the remote computer. The signal conditioning units connected to the workstations include an onscreen programming circuit that produces menus for the user on a video display of the workstation.
REFERENCES:
patent: 5721842 (1998-02-01), Beasley et al.
patent: 5884096 (1999-03-01), Beasley et al.
Beasley Danny L.
Greene Thomas
Hafer Kevin J.
Huffington James C.
Lacrampe Paul
Apex PC Solutions Inc.
Dinh Dung C.
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