Walter Kellermann
23Patents
8h-index
31Co-inventors
75Inventor score
Filing activity: Mar 7, 1978 → Jan 24, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5602962A | Mobile radio set comprising a speech processing arrangement | Electricity | 117 | Expired |
| US7747001B2 | Speech signal processing with combined noise reduction and echo compensation | Physics | 50 | Active |
| US5835607A | Mobile radiotelephone with handsfree device | Electricity | 29 | Expired |
| US5500880A | Transmission system comprising a sub-band echo canceller which includes a sub-band coding arrangement | Electricity | 19 | Expired |
| US5457711A | Channel selector arrangement | Electricity | 10 | Expired |
| US8290189B2 | Blind source separation method and acoustic signal processing system for improving interference estimation in binaural wiener filtering | Electricity | 9 | Active |
| US4146436A | Electrochemical determination of heavy metals in water and apparatus therefor | Physics | 9 | Expired |
| US8009840B2 | Microphone calibration with an RGSC beamformer | Electricity | 9 | Active |
| US9807534B2 | Device and method for decorrelating loudspeaker signals | Electricity | 4 | Active |
| US8090111B2 | Signal separator, method for determining output signals on the basis of microphone signals, and computer program | Electricity | 4 | Active |
| US8218774B2 | Apparatus and method for processing continuous wave fields propagated in a room | Electricity | 3 | Active |
| US9277333B2 | Method for adjusting the useful signal in binaural hearing aid systems and hearing aid system | Electricity | 3 | Active |
| US10375503B2 | Apparatus and method for driving an array of loudspeakers with drive signals | Electricity | 1 | Active |
| US8909523B2 | Method and acoustic signal processing system for interference and noise suppression in binaural microphone configurations | Electricity | 1 | Active |
| US9326055B2 | Apparatus and method for providing a loudspeaker-enclosure-microphone system description | Electricity | 1 | Active |
| US10284993B2 | Apparatus and method for driving an array of loudspeakers | Electricity | 0 | Active |
| USRE47820E1 | Apparatus and method for providing a loudspeaker-enclosure-microphone system description | General | 0 | Active |
| US10659901B2 | Rendering system | Electricity | 0 | Active |
| US11984965B2 | Audio processing apparatus and method for localizing an audio source | Electricity | 0 | Active |
| US9736599B2 | Method for evaluating a useful signal and audio device | Electricity | 0 | Active |
| US9349363B2 | Audio signal processing system and echo signal removing method thereof | Electricity | 0 | Active |
| US9338576B2 | Apparatus and method for listening room equalization using a scalable filtering structure in the wave domain | Electricity | 0 | Active |
| US11921198B2 | Apparatus for determining spatial positions of multiple audio sources | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.