Rockwell Collins, Inc.

Russ D Uthe

Matthew P Corbett

Jason R Owen

Eric N Anderson

Timothy R Fannin

A system-on-chip may include application processing cores which execute safety critical applications and an integrity application. The system-on-chip may also include integrity processing cores which execute an integrity monitor. The integrity monitor may compare integrity application outputs and integrity monitor outputs to detect if the processing cores have experienced a common mode fault. The integrity processing cores may perform temporal monitoring to accommodate time-asynchronization's between the application processing cores and the integrity processing cores.

Temporal buffering of integrity comparison data

A system and method for integrity monitoring on a heterogeneous system-on-a-chip (SoC) processing environment provides sets of dynamic input data to integrity applications running on one or more application cores (e.g., where safety critical applications are hosted) which generate an integrity output according to function/instruction sets. The dynamic input data is also provided to an integrity monitor running on a dissimilar integrity core (e.g., different architecture and/or other core type than the application cores) which receives the integrity output from the application cores and generates its own integrity result based on the same function sets and the same dynamic input data. The integrity monitor compares the local integrity result to the integrity outputs received from the application cores. If the integrity outputs deviate from the integrity result, the integrity core initiates a fault response, which may include resetting the deviant application core, all application cores, or the full SoC environment.

System and method for integrity monitoring of heterogeneous system-on-a-chip (SoC) based systems

An LCD is described. The LCD includes an LCD panel and a backlight. The LCD panel includes a plurality of LCD elements arranged in an array, each element configured to change its light transmission based on a voltage applied to the LCD element. The backlight is configured to provide light to the LCD elements of the LCD panel. The backlight includes one or more visible light elements providing visible light to the LCD panel, and includes one or more non-visible light elements, different from the visible light elements, providing non-visible light to the LCD panel at a wavelength such that the non-visible light increases the photoconductivity of the LCD elements.

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Ely, IA, United States of America

Russ D Uthe