By PAUL ELIAS

Associated Press

SAN JOSE, Calif. - A Silicon Valley jury is set to begin deciding how much Samsung Electronics owes Apple for copying key features of the iPhone and iPad.

Apple is demanding $380 million. Samsung counters that it only owes $52 million for using features such as "pinch-to-zoom" in 13 older-generation products. The jury is expected to begin deliberations today after closing arguments and jury instructions.

The one-week trial was held to determine damages.

An earlier jury found Samsung had infringed Apple's patents in making and selling 26 products and awarded Apple $1.05 billion. But U.S. District Judge Lucy Koh ruled that the jury miscalculated damages for 13 products. The two companies have each won and lost legal skirmishes over the past couple of years, and analysts predict litigation for months to come.