If you are speaking of this article, the article incorrectly states the next quarterly dividend amount at thirty (30) cents per share when it should be thiry-five (35) cents per share. I stopped reading after that.
The calculation does not take into account Huawei revenue last year that did not show up in earnings due to a change in Revenue Recognition GAAP standards.
Full year 2018 recurring revenue was $280 million. Under ASC 605, recurring revenue for full year 2018 would have been $365.
That's $85 million of "earnings" that were not included in that calculation.
The headline should be ... Interdigital dividends last year were roughly 40% of earnings under ASC 605.