Ruby equivalent of Geo::Coder::US for geocoding purposes

I downloaded the Tiger data from the US Census website and then imported it into a Berkeley database using the instructions on the following page:

http://www.developer.com/tech/print.php/3557171

The instructions above show how to use Perl to get the data from the database via Geo::Coder::US;.  Does anyone know if there's a Ruby equivalent to Geo::Coder::US that would allow me to accomplish the same thing?

Here's the Perl code for reference:
#!/usr/bin/perl -w
Use Geo::Coder::US;
Geo::Coder::US->set_db("geocoder.db");
my ($stadium) = Geo::Coder::US->geocode
                ("411 Woody Hayes Dr, Columbus, OH");
print "The Ohio State University stadium coordinates:
       Latitude ($stadium->{lat}) Longitude($stadium->{long})";