SiRF Files Patent Complaint With ITC

SAN JOSE, Calif. (AP) -- A unit of SiRF Technology Holdings Inc., a maker of global positioning system location technology, said Friday it asked trade officials to see if Global Locate Inc. is violating its patents.

SiRF said its SiRF Technology Inc. unit filed a complaint in the U.S. International Trade Commission that seeks to prevent Global Locate from importing GPS devices that use technology SiRF says is patented.

The move comes eight weeks after SiRF filed a patent infringement suit against Global Locate and its U.S. distributor, Innovation Sales Southern California, in the U.S. District Court for the Central District of California.

SiRF shares rose 32 cents on the Nasdaq in morning trading to $31.18.