Automatic phase adjustment for display
AssigneeGateway, Inc.
InventorCorwyn R. Meyer
Life of this patent
Estimating the term…
Abstract
Autophase adjustment is initiated in a display device that digitally displays analog video signals. The autophase adjustment is initiated based on monitoring of at least one of the horizontal and vertical synchronization signal pulse rates and polarity. When a change is detected in either of the horizontal and vertical synchronization pulses, an autophase adjustment is automatically initiated. Correct phase settings are obtained from a table of settings cross referenced by the horizontal and vertical synchronization pulse rates and polarity.
Claims33
A system for displaying video signals, the system comprising:
- a controller that monitors synchronization signals and provides phase adjustment signals based on the monitored synchronization signals;
- a converter that receives video signals and uses the phase adjustment signals to convert the video signals to a digital signal;
- and
- a display that receives the digital signal and displays images represented therein.
A monitor for displaying video signals, the system comprising:
- a controller that receives synchronization signal polarity and pulse rates and provides a phase adjustment signal based on the monitored synchronization signal polarity and pulse rates;
- a converter that receives video signals and uses the phase adjustment signals to convert the video signals to a digital signal;
- and
- a display that receives the digital signal and displays images represented therein.
A system for displaying video signals, the system comprising:
- a monitor that monitors synchronization signal polarity and pulse rates for an analog video signal;
- an autophase adjustment mechanism responsive to a signal provided by the monitor to automatically adjust a phase;
- and,
- a converter that receives the analog video signal and the adjusted phase to convert the analog video signal to a digital signal suitable for display on a display having individually addressable pixel elements.
A method of displaying analog video signals, the method comprising:
- monitoring synchronization signal polarity and pulse rates for an analog video signal;
- initiating autophase adjustment mechanism responsive to a signal provided by the monitoring of the synchronization signal polarity and pulse rates to automatically adjust a phase;
- and,
- converting the analog video signal to a digital signal suitable for display on a display having individually addressable pixel elements.
A method of automatically adjusting phase for a LCD display, comprising:
- monitoring at least one horizontal and vertical synchronization signals;
- detecting an alteration in said at least one of the horizontal and vertical synchronization signals;
- and
- adjusting a phase of the LCD display in accordance with the alteration such that the phase is adjusted for optimal viewing of the LCD display.
A computer system comprising:
- a processor;
- a memory coupled to the processor;
- an analog video port providing analog video signals;
- a controller that receives synchronization signal polarity and pulse rates from the video port and provides a phase adjustment signal based on the monitored synchronization signal polarity and pulse rates;
- a converter that receives video signals from the video port and uses the phase adjustment signals to convert the video signals to a digital signal;
- and
- a display that receives the digital signal and displays images represented therein.
Dependencies are inferred from the claim text.