Display mode selection method and display unit controller

Details Display mode selection method and display unit controller Display mode selection method and display unit controller

1998-07-24

2000-09-26

Saras, Steven J.

Computer graphics processing and selective visual display system

Display driving control circuitry

345132, 348545, G09G 500

Patent

active

061248509

ABSTRACT:
A display mode selection method for selecting one display mode with respect to an input display signal from a table which defines a horizontal scanning frequency, a vertical scanning frequency and a resolution for a plurality of display modes, includes the steps of storing the plurality of display modes in the table in a plurality of blocks so that display modes having mutually overlapping tolerable ranges of the horizontal scanning frequency are included in the same block, obtaining a block number with respect to the input display signal by substituting a horizontal scanning frequency of the input display signal into a calculation formula which describes the block number of the blocks as a function of the horizontal scanning frequency, and selecting a display mode with respect to the input display signal from a display mode of the obtained block number by making a reference to the table.

REFERENCES:
patent: 5031118 (1991-07-01), Morizot
patent: 5161012 (1992-11-01), Choi
patent: 5241281 (1993-08-01), Wilkes et al.
patent: 5963266 (1999-10-01), Fujimori
"Display Mode Detection for Multimode Monitors", IBM Technical Disclosure Bulletin, vol. 37, No. 4B, Apr. 1, 1994, pp. 255-257.
Vuketich, R.S. et al. "Multisync Color Monitor Design", Applications Notes, Boxton, May 19-21, 1992, vol. 23, May 19, 1992, pp. 72-74.

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