Apparatus for controlling an operation of a display data channel

Details Apparatus for controlling an operation of a display data channel Apparatus for controlling an operation of a display data channel

1996-11-04

1999-06-29

Zimmerman, Mark K.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345204, 345214, G09G 500

Patent

active

059174684

ABSTRACT:
An apparatus for controlling the operation of a display data channel part of a monitor so that a personal computer (PC) with DDC function is compatible with a personal computer without DDC function and a method thereof. The apparatus includes a voltage switch for controlling the voltage supplied to the IC, a microcomputer for controlling the voltage switch, an electrically erasable programmable read only memory for storing information in relation to the operation of the DDC part, which is performed by the microcomputer and for providing the stored information to the microcomputer, a key input part connected to the microcomputer and to which selection data for selecting whether or not the operation of DDC part is performed is applied, an on screen display (OSD) processor receiving the selection data from the microcomputer to produce OSD data in response to the selection data, an image display for changing data outputted from the OSD processor to a video signal and a color picture tube(CPT) receiving the result of the image display.

REFERENCES:
patent: 5270821 (1993-12-01), Samuels
patent: 5315695 (1994-05-01), Saito et al.
patent: 5396593 (1995-03-01), Mori et al.
patent: 5457473 (1995-10-01), Arai et al.
patent: 5465106 (1995-11-01), Keech et al.
patent: 5602567 (1997-02-01), Kanno
patent: 5675364 (1997-10-01), Stedman et al.

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