Inventor · Knivsta, SE

Per Ahgren

21Patents
5h-index
8Co-inventors
54Inventor score

Filing activity: Nov 29, 2007 → Oct 11, 2016

Most-cited inventions

PatentTitleAreaCited byStatus
US8824693B2 Processing audio signals Electricity 43 Active
US9111543B2 Processing signals Electricity 33 Active
US9591123B2 Echo cancellation Electricity 32 Active
US9031257B2 Processing signals Physics 9 Active
US9913026B2 Reversed echo canceller Electricity 7 Active
US9042573B2 Processing signals Electricity 5 Active
US9167342B2 Echo suppression Emerging Cross-Sectional Technologies 3 Active
US8538034B2 Method and arrangement for echo cancellation of voice signals Electricity 3 Active
US9264804B2 Noise suppressing method and a noise suppressor for applying the noise suppressing method Electricity 3 Active
US9277059B2 Echo removal Electricity 3 Active
US9172816B2 Echo suppression Electricity 2 Active
US9467571B2 Echo removal Electricity 1 Active
US9521264B2 Echo removal Electricity 1 Active
US8756055B2 Systems and methods for improving the intelligibility of speech in a noisy environment Physics 1 Active
US9420390B2 Estimation and suppression of harmonic loudspeaker nonlinearities Electricity 1 Active
US10129408B1 Residual echo detection based on non-causality Electricity 1 Active
US8983058B2 Echo canceller and a method thereof Electricity 0 Active
US9154873B2 Echo suppression Electricity 0 Active
US8688758B2 Systems and methods for filtering a signal Electricity 0 Active
US9177566B2 Noise suppression method and apparatus Physics 0 Active
US8971522B2 Noise reduction Electricity 0 Active

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