Abstract: An apparatus for controlling aging, cathode ray tube aging including a microcontroller generating brightness level data for aging of the cathode to a video input signal; a video preamplifier connected to the microcontroller receiving the brightness level data by the video input signal and mixing a host video signal to generate a video output signal wherein the brightness level of the video output signal being controlled by the microcontroller; a cutoff control coupled to the video preamplifier receiving brightness data of the video output signal and setting a proper brightness level of a cathode; and a voltage control not coupled to the microcontroller preset for a an initial brightness level of the cathode during aging.

Abstract: An apparatus for controlling aging, cathode ray tube aging including a microcontroller generating brightness level data for aging of the cathode to a video input signal; a video preamplifier connected to the microcontroller receiving the brightness level data by the video input signal and mixing a host video signal to generate a video output signal wherein the brightness level of the video output signal being controlled by the microcontroller; a cutoff control coupled to the video preamplifier receiving brightness data of the video output signal and setting a proper brightness level of a cathode; and a voltage control not coupled to the microcontroller preset for a an initial brightness level of the cathode during aging.

Abstract: The present invention is a method and apparatus for generating auto sizing and position data on a video monitor in response to a plurality of video signals. Basic parameters are determined based on the video signals; and derived parameters are calculated using a standardized formula from the basic parameters. The basic and derived parameters provide the auto sizing and positioning data.

Abstract: A system for processing a video signal is described. Components of the video signal, such as the horizontal sync signal, undergo time delays as the signal propagates and is processed by circuit elements. In order to properly align the components of the video signal for further processing, compensation for the different time delays is introduced.

Abstract: A moiré adjustment circuit receives a horizontal synchronization signal having a horizontal scanning frequency and a moiré adjustment signal substantially proportional to a horizontal spatial offset of alternate display lines on the display to correct the moiré effect. The moiré adjustment circuit generates a horizontal position signal having a first frequency proportional to the horizontal scanning frequency and a position value substantially proportional to the moiré adjustment signal and the horizontal scanning frequency. A horizontal position control circuit, coupled to the moiré adjustment circuit, generates a horizontal reference signal having a second frequency substantially equal to the horizontal scanning frequency and a reference phase that is shifted from a synchronization phase of the horizontal synchronization signal substantially in proportion to the horizontal position signal.

Abstract: The present invention is a method and apparatus for selecting a capacitor value corresponding to a horizontal frequency in a video monitor. The technique determines the horizontal frequency and creates a limit on a default capacitor value which is obtained from the determined horizontal frequency. An updated value is compared with the limit to generate a comparison result. The capacitor value between the default capacitor value and the updated value is selected based on the comparison result.

Abstract: In a display monitor, a horizontal synchronization signal having a horizontal scanning frequency is received by a first circuit. A vertical synchronization signal having a vertical scanning frequency is received by a second circuit. A moire correction signal that is proportional to a horizontal resolution of the displayed image is generated by dividing the horizontal scanning frequency by the vertical scanning frequency.

Abstract: A display apparatus for displaying adjustment data for a video display on an on-screen display includes video signal processing circuitry, input circuitry for entering user adjustment data, a microcomputer for receiving the user adjustment data and for controlling the video signal processing circuitry based on the user adjustment data, a memory connected to the microcomputer for storing the user adjustment data and factory preset data for the video display, a display screen connected to the video signal processing circuitry, and an on-screen display portion for displaying the user adjustment data and the factory preset data simultaneously on the display screen.

Abstract: A display apparatus for displaying a representation of adjustment data for a video display in a multi-frequency video display apparatus includes circuitry for processing video signals having synchronization signals of various frequencies, circuitry for providing input adjustment data, a microcomputer receiving the adjustment data and controlling the video signal processing based on the adjustment data, a display connected with the video signal processing circuitry, on-screen display circuitry for displaying a representation of the adjustment data on the display, and circuitry for controlling the on-screen display so that the representation of the adjustment data is displayed at substantially the same position on the display across different frequency modes of the multi-frequency video display apparatus.