Oracle and Google (News - Alert) are preparing for a trial over claims that Google’s popular smartphone OS violates Oracle’s patents, the Associated Press reported.

The trial, scheduled to start April 16, hinges on whether Android (News - Alert) infringes on Oracle’s patents on Java it acquired when it acquired Sun Microsystems in 2010. The Redwood City, CA-based Oracle seeks hundreds of millions of dollars in damages.

Google, the Mountain View, CA (News - Alert)-based search engine, believes it won’t have to pay nearly that much, only a relatively cheap amount of a few million dollars.

“Google has been aware of Sun's patent portfolio, including the patents at issue, since the middle of this decade, when Google hired certain former Sun Java engineers,” Oracle’s original complaint said.

Both companies released a joint statement. Google holds that it could shorten the time required for a trial by appearing before U.S. District Judge William Alsup, instead of a jury trial. The current trial is scheduled to run eight weeks.

Oracle, on the other hand, wants to make its case before a jury.

Google believes it only owes money for two patents, one of which is scheduled to expire this year. In their view, the company is liable for only $2.8 million. Google is prepared to pay a royalty of 0.5 percent for the patent expiring this year and 0.015 percent for another patent expiring in 2018 on future revenues from Android.

While Google does not sell Android itself, it does sell advertising.

This suit is not the only one Google faces. BT (News - Alert) is also suing Google in regard to patents the British telecom company says they infringe on in Android. Google Maps, Google Music and Android Market as well as location-based advertising all allegedly violate BT’s patents and Google is required to pay them royalties, according to the complaint.

Google is also facing suits from Microsoft, Apple, eBay and security company Gemalto (News - Alert) over Android.

A Google representative said the complaints were without merit.