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By Dan Levine SAN JOSE, California (Reuters) – Apple Inc and Samsung faced off once again in their long-running courtroom battle, with the iPhone maker asking jurors to award more than $2 billion for patent violations and Samsung trying to cast its rival as a sore loser in the smartphone market. Apple marketing chief Philip Schiller also testified about his shock at how similar Samsungs smartphones were to the iPhone. Jurors awarded the iPhone maker about $930 million after a 2012 trial in San Jose, California, but Apple failed to persuade U.S. District Judge Lucy Koh to issue a permanent injunction against the sale of Samsung phones. A sales ban would be a far more serious threat to Samsung, which earned $7.7 billion in the quarter that ended in December.