This paper outlines the GPS receiver developed by JRC. A custom IC which integrates in one chip most of the circuits required for the GPS receiver was developed, and is also introduced in this report. The GPS receiver developed by JRC is not only for car and ship navigation which was the original application, but is also equipped with functions allowing its use in mobile devices, digital cameras, etc. These functions have been evaluated highly. The GPS receiver is also equipped with hardware to support the "Galileo" and "QZSS" GNSS.