| 摘要 |
<p>An apparatus and method for protecting a display from fault conditions. An oscillator independent of a display clock of a display to be protected is formed on a substrate with the display. The oscillator generates a periodic signal which is used to define a period during which a register collects indicators of normal system operation. Combinational logic is used to determine if the set of indicators collected matches the set of indicators expected during the time period. If the set matches, operation is deemed normal and no action is taken. If an indicator is missing, the combinational logic generates a signal that causes the display to be driven into a safe state until such time as all indicators are again collected within the defined time period.</p> |
