On-screen display system

Details On-screen display system On-screen display system

2006-04-05

2010-06-15

Tran, Henry N (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C345S156000, C345S204000, C345S629000, C348S705000, C348S706000, C710S005000, C710S064000, C715S716000, C715S748000, C725S098000, C725S150000

Reexamination Certificate

active

07737964

ABSTRACT:
An on-screen display system is located externally a KVM switch. The on-screen display system includes a first end, an on-screen display circuit, a switch circuit and a second end. The first end receives a video signal from a computer. The on-screen display circuit generates an on-screen display menu signal. The switch circuit receives the video signal from the computer and the on-screen display menu signal from the on-screen display circuit. The on-screen display system combines the video signal and the on-screen display menu signal, or overlaps the on-screen display menu signal on the video signal to be displayed on the display according to a control signal.

REFERENCES:
patent: 5721842 (1998-02-01), Beasley et al.
patent: 6112264 (2000-08-01), Beasley et al.
patent: 6557170 (2003-04-01), Wilder et al.
patent: 6671756 (2003-12-01), Thomas et al.
patent: 7167372 (2007-01-01), Mori et al.
patent: 7441063 (2008-10-01), Tseng et al.

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