InterDigital Inc., a King of Prussia telecommunications company, today forecast revenue of $58.5 million to $59.5 million for the second quarter.

In the same quarter last year, InterDigital posted revenue of $55.01 million.

The company said its forecast range for the 2008 period does not include any new contracts it may win during the rest of the quarter or any additional royalties. The quarter ends June 30.

Most of the revenue - $56.2 million to $56.7 million - will come from recurring patent licensing revenue.

InterDigital provides advanced wireless technologies and products for voice and data communications.

Its shares were up 47 cents to $23.73 in afternoon Nasdaq trading.