Sol Friedman
9Patents
6h-index
9Co-inventors
52Inventor score
Filing activity: Apr 21, 1995 → Oct 5, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5943427A | Method and apparatus for three dimensional audio spatialization | Electricity | 101 | Expired |
| US7514620B2 | Method for shifting pitches of audio signals to a desired pitch relationship | Physics | 14 | Active |
| US7189913B2 | Method and apparatus for time compression and expansion of audio data with dynamic tempo change during playback | Physics | 12 | Expired |
| US7603623B1 | User interface to automatically correct timing in playback for audio recordings | Physics | 10 | Active |
| US7425674B2 | Method and apparatus for time compression and expansion of audio data with dynamic tempo change during playback | Physics | 8 | Active |
| US7250566B2 | Evaluating and correcting rhythm in audio data | Physics | 6 | Active |
| US7148415B2 | Method and apparatus for evaluating and correcting rhythm in audio data | Physics | 5 | Expired |
| US7233832B2 | Method and apparatus for expanding audio data | Physics | 4 | Expired |
| US8635532B2 | User interface to automatically correct timing in playback for audio recordings | Physics | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.