Video display adjustment and on-screen menu system
DCFirst Claim
1. An apparatus for adjusting video display controls in a multi-frequency video display, comprising:
- input control means for providing user input;
microcontroller means for receiving user input from said input control means and for controlling said adjusting of said video display controls;
memory means for storing parameters of adjusted video display controls, said memory means electrically connected to said microcontroller means;
display adjustment means for providing said parameters of said adjusted video display controls to said multi-frequency video display, said display adjustment means controlled by said microcontroller means; and
on-screen display means for displaying visual representations of said adjustment of said video display controls on a screen of said video display, across different frequency modes of said multi-frequency video display.
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Abstract
An EEPROM stores multiple sets of video display parameters for a multi-frequency video display. A microcontroller receives input from a user, changes the stored display parameters and outputs changes in the parameters to the video display. The microcontroller also controls video display apparatus that displays on-screen menus and value indicator graphs for facilitating user input. The video display apparatus incorporates a video clock synchronized to the horizontal synchronization signal of the multi-frequency display, to keep the displayed menus synchronized regardless of the current frequency. In addition, the video display apparatus elongates displayed characters at higher frequencies to control the absolute size of displayed characters across frequencies. The present invention provides for changes to video display parameters, and for resetting the display parameters to factory standards, without manipulating electromechanical devices such as potentiometers.
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Citations
16 Claims
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1. An apparatus for adjusting video display controls in a multi-frequency video display, comprising:
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input control means for providing user input; microcontroller means for receiving user input from said input control means and for controlling said adjusting of said video display controls; memory means for storing parameters of adjusted video display controls, said memory means electrically connected to said microcontroller means; display adjustment means for providing said parameters of said adjusted video display controls to said multi-frequency video display, said display adjustment means controlled by said microcontroller means; and on-screen display means for displaying visual representations of said adjustment of said video display controls on a screen of said video display, across different frequency modes of said multi-frequency video display. - View Dependent Claims (2, 3, 4, 5, 6)
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7. Apparatus for adjusting video display video display controls in a multi-frequency video display, comprising:
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an input control block for providing user input; a microcontroller capable of receiving said user input from said input control block, said microcontroller capable of controlling said adjusting of said video display controls; a memory block capable of storing parameters of the adjusted video display controls, said memory block electrically connected to said microcontroller, a display adjustment block capable of providing said parameters of said adjusted video display controls to said multi-frequency video display, said display adjustment block coupled to and controlled by said microcontroller; and an on-screen display block capable of displaying visual representations of said adjusted video display controls on a screen of said video display, across different frequency modes of said multi-frequency video display. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method for adjusting video display controls in a multi-frequency video display comprising the steps of:
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A) displaying visual representations of adjustments of said video display controls on a screen of said video display, across different frequency modes of said multi-frequency video display; B) receiving adjustment inputs from a user; C) adjusting a set of video display parameters stored in a memory, said adjusting corresponding to said adjustment inputs; and D) providing said adjusted video display parameters to said multi-frequency video display, said adjusted video display parameters adjusting said video display controls. - View Dependent Claims (14, 15, 16)
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Specification