The patent would create a system to compare the track record and credibility of different news sources, New Scientist magazine has reported.
The database would weigh up a series of variables, including story length, number of staff employed and amount of traffic to its website.
Currently Google News will provide thousands of results, based on relevance to the keyword entered.
More recent stories will rank highest.
The system means a news story written by trusted sources such as the BBC or CNN could be outranked by a more obscure publication if the latter is a more current story.
May 3, 2005
Google patents quality
From the BBC:
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