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Summary Box: Oracle mulled expansion into phones

The Associated Press

Oracle CEO Larry Ellison arrives for a court appearance at a federal building in San Francisco, Tuesday, April 17, 2012. Oracle intends to rely heavily on Google's own internal emails to prove Google's top executives knew they were stealing a popular piece of technology to build the Android software that now powers more than 300 million smartphones and tablet computers. (AP Photo/Paul Sakuma)

THE TESTIMONY: Oracle CEO Larry Ellison says the company wanted to compete against Google's Android software before deciding instead to sue his potential rival for copyright and patent infringement.

WHAT HAPPENED: Ellison says the company explored it and "decided it was a bad idea."

ABOUT THE CASE: It's the second day of a trial pitting two high-tech bellwethers. The dispute is over whether Google built its widely used Android software by improperly taking some of the technology from Java, now owned by Oracle.