SAN FRANCISCO — As it approaches trial in San Jose federal court, a suit over Apple technology that slices up streams of video data may itself be suffering death from a thousand cuts.

Tel Aviv-based Emblaze Ltd. has sued Apple Inc. over its HTTP Live Streaming technology, which Apple uses to improve audio and video streaming in iPhones, iPads and other mobile devices. U.S. Magistrate Judge Paul Grewal, who is presiding over the case, has compared the technology to the Veg-o-Matic once touted on late-night TV for slicing and dicing. “But rather than carrots or celery, this contraption chops up streams of data for upload and download,” the judge wrote in an order earlier this year.