The patent largely describes a camera that can “capture, compress, and store video image data in a memory of the video camera, but really it pertains more to Rawcode, Red’s format for holding RAW footage, unprocessed imaging data from the sensor. Apple believes that some of the claims of the patent are “unpatentable,” and that the patent itself should be invalidated.

Apple’s arguments start with how the patent does not provide “written description support” for some claims, such as the disclosure of “outputting the raw mosaiced image data at a resolution of at least 2k and at a frame rate of at least about 23 frames per second.” While the patent describes decompression and demosaicing algorithms, it “does not disclose image resolution or frame rate parameters, let alone a camera system capable of meeting such parameters.”

I don’t know about this patent in particular, but other patents have been intentionally vague so they cover as much as possible.