Abstract: A method for detecting a single event functional interrupt for an electronic circuit is provided. The method involves periodically generating a refresh signal for the electronic circuit, and generating a single event functional interrupt indicator signal in the electronic circuit that is responsive to the refresh signal. The method also involves monitoring the single event functional interrupt indicator signal for a state that indicates a failed refresh attempt.

Abstract: Methods and systems for processing digital video data are provided. In one embodiment, a method comprises capturing one or more video images and generating serial digital video signals of the one or more video images. The method further comprises filtering one or more of color, sound, and control symbols from the serial digital video signals. The method further comprises storing the serial digital video signals as a memory mapped image in one or more memories; performing one or more image enhancement operations on the memory mapped image, including one or more of digital filtering, edge detection, image cropping and image magnification; and generating second serial digital video signals of the transmitted memory mapped images by one or more of, restoring control symbols, inserting blank color data samples, inserting blank sound data samples.

Abstract: Methods and systems for assembling spacecraft in space are provided. A modular spacecraft comprises a plurality of spacecraft modules, wherein each spacecraft module includes one or more of bonding posts and receiving plates mounted to an exterior surface each spacecraft module, wherein the one or more bonding posts and receiving plates are adapted to form one or more of, an electro-weld bond and an adhesive bond, with the one or more receiving plates.