SAN DIEGO (AP) -- Cell-phone chip maker Qualcomm said Thursday it has acquired patents once owned by smart phone maker Palm from Hewlett-Packard (HPQ) for an undisclosed amount.

Qualcomm says the purchase covers 1,400 U.S. patents and about 1,000 more foreign patients for the company's mobile computing technology. Terms of Thursday's transaction were not disclosed.

Hewlett-Packard paid $1 billion for Palm in 2010 as part of its first foray into tablet computers and smartphones, which ran on Palm's operating system. The effort flopped and Hewlett now sells tablets using Android and a recently introduced version of Windows. The Palo Alto-based company hasn't re-entered the smartphone market.

The company later wrote down the deal and sold the WebOS operating system's code to LG Electronics last year.

The Palm acquisition was one of three major purchases that have haunted HP, including technology consulting service EDS and business software maker Autonomy. In November of 2012, Hewlett took an $8.8 billion writedown on the Autonomy acquisition, saying it was the victim of a multibillion-dollar fraud at the hands of the British company. Autonomy's former CEO said HP's allegations were false.

The Qualcomm deal also includes technology from Hewlett-Packard's iPaq mobile devices, and HP's 2007 acquisition of Bitfone, a maker of device- management software.

Qualcomm, the world's largest maker of mobile-phone chips, which gets the majority of its profit from technology licensing, said it will use the patents to "offer even more value to current and future licensees." The chipmaker charges royalties to handset makers and rival semiconductor companies for the use of its code division multiple access, or CDMA, wireless technology, which has become part of most high-speed mobile data systems.

Qualcomm shares rose less than 1 percent to $75.87 at the close in New York. Hewlett-Packard shares fell 1.6 percent to $29.37.

Bloomberg News contrubuted to this report.