Apple v. Samsung gets under way in a courtroom in Northern California today, where the parties will present their arguments in a long-running dispute over smartphone and tablet patents. There's a good reason for the deja vu you're sensing. The trial comes just a year and a half after what we'll call Apple v. Samsung I, a patent case in which a jury sided with Cupertino. The jurors found that Samsung had infringed on several key iPhone and iPad technology and design patents, and they rejected Samsung's claims against Apple -- awarding the US company $1 billion in damages. But the judge hearing the case, Lucy Koh of the federal district court in San Jose, denied Apple's motion to ban the Samsung devices from the market. Apple is seeking $2 billion in damages, but booting arch rival Samsung from the US market would be a far bigger prize. Apple asked for this in the first trial, but Judge Koh twice rejected the request.