Inventor · West Linn, OR, US

Xiaofen Chen

15Patents
7h-index
16Co-inventors
63Inventor score

Filing activity: Apr 3, 1998 → Jul 10, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US6701265B2 Calibration for vector network analyzer Physics 96 Expired
US6671334B1 Measurement receiver demodulator Electricity 67 Expired
US6246717A Measurement test set and method for in-service measurements of phase noise Electricity 62 Expired
US6366629B1 Method of estimating timing phase and rate offsets in digital data Electricity 30 Expired
US6275523A In-service measurement of transmitter nonlinearities Electricity 18 Expired
US6636722B1 Broadband receiver amplitude/phase normalization using a broadband temperature compensated noise source and a pseudo random sequence generator Electricity 10 Expired
US6366621B1 Method of estimating pilot signal phase in a digitally modulated RF signal Electricity 8 Expired
US6384589B1 Reference frequency spur cancellation in synthesized measurement receivers Electricity 6 Expired
US6542112B1 Interference cancellation in antenna test Physics 4 Expired
US9176213B2 Adaptive coded modulation in low earth orbit satellite communication system Electricity 2 Active
US7184406B2 Visualization of active codes, their spreading factors and power levels, in a code domain power display Electricity 1 Expired
USD1036114S1 Purse General 1 Active
US7373282B2 Fault severity check and source identification Electricity 1 Expired
US6741642B1 Enhanced constellation display for VSB television signals Electricity 1 Expired
US12339539B1 Display module and display device Physics 0 Active

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