Inventor · Cupertino, CA, US

Qinfang Sun

40Patents
9h-index
34Co-inventors
75Inventor score

Filing activity: Oct 1, 2002 → Apr 25, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US7616698B2 Multiple-input multiple output system and method Electricity 71 Active
US7418042B2 Repetition coding for a wireless system Electricity 38 Expired
US7039004B2 Decision feedback channel estimation and pilot tracking for OFDM systems Electricity 38 Expired
US8018379B1 Automatic gain control in system simultaneously receiving GPS and GLONASS signals Physics 20 Active
US8335283B1 Weak signal detection in wireless communication systems Electricity 15 Active
US7623467B1 Wireless channel estimation Electricity 14 Active
US8144683B1 High throughput fine timing Electricity 12 Active
US8538682B1 Systems and methods for satellite navigation using locally generated ephemeris data Physics 10 Active
US7826521B1 Rate adaptation using error vector magnitude Electricity 10 Active
US8405546B1 Engines in system simultaneously receiving GPS and GLONASS signals Physics 8 Active
US7800531B2 High precision positioning system Physics 8 Active
US8018378B2 Satellite navigation receiver having a configurable acquisition engine Physics 8 Active
US8824606B2 Multiple correlators for communication device detection Electricity 7 Active
US8755472B2 High sensitivity GPS receiver Physics 7 Active
US8059734B1 MIMO equalization for wireless communication systems Electricity 5 Active
US8587477B2 Analog front end for system simultaneously receiving GPS and GLONASS signals Physics 5 Active
US8410979B2 Digital front end in system simultaneously receiving GPS and GLONASS signals Physics 4 Active
US8270457B2 High sensitivity GPS receiver Physics 4 Active
US7705778B2 Satellite navigation receiver having configurable acquisition and tracking engines Physics 4 Active
US9065686B2 Spur detection, cancellation and tracking in a wireless signal receiver Electricity 4 Active
US8989294B2 Multiple-input multiple-output system and method Electricity 3 Active
US8073072B2 Multiple-input multiple-output system and method Electricity 3 Active
US8207890B2 Providing ephemeris data and clock corrections to a satellite navigation system receiver Physics 3 Active
US8884818B1 Calibration and blanking in system simultaneously receiving GPS and GLONASS signals Physics 2 Active
US8754809B2 High sensitivity GLONASS/GPS automatic frequency control Physics 2 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.