David P. Rossum
43Patents
15h-index
28Co-inventors
81Inventor score
Filing activity: Oct 21, 1974 → Dec 20, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5763800A | Method and apparatus for formatting digital audio data | Physics | 106 | Expired |
| US5943427A | Method and apparatus for three dimensional audio spatialization | Electricity | 101 | Expired |
| US3969682A | Circuit for dynamic control of phase shift | Electricity | 89 | Expired |
| US5111727A | Digital sampling instrument for digital audio data | Physics | 55 | Expired |
| US5342990A | Digital sampling instrument employing cache-memory | Physics | 47 | Expired |
| US5864876A | DMA device with local page table | Physics | 41 | Expired |
| US3986423A | Polyphonic music synthesizer | Physics | 35 | Expired |
| US6324235A | Asynchronous sample rate tracker | Electricity | 33 | Expired |
| US5248845A | Digital sampling instrument | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5698807A | Digital sampling instrument | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5170369A | Dynamic digital IIR audio filter and method which provides dynamic digital filtering for audio signals | Electricity | 24 | Expired |
| US5928342A | Audio effects processor integrated on a single chip with a multiport memory onto which multiple asynchronous digital sound samples can be concurrently loaded | Physics | 20 | Expired |
| US6016522A | System for switching between buffers when receiving bursty audio by computing loop jump indicator plus loop start address for read operations in selected buffer | Physics | 19 | Expired |
| US5698803A | Digital sampling instrument employing cache memory | Physics | 17 | Expired |
| US7280878B1 | Sample rate converter having distributed filtering | Electricity | 16 | Expired |
| US5925841A | Digital sampling instrument employing cache memory | Physics | 14 | Expired |
| US9478234B1 | Microphone apparatus and method with catch-up buffer | Electricity | 13 | Active |
| US5144676A | Digital sampling instrument | Physics | 12 | Expired |
| US4987600A | Digital sampling instrument | Physics | 12 | Expired |
| US6092126A | Asynchronous sample rate tracker with multiple tracking modes | Physics | 11 | Expired |
| US4506579A | Electronic musical instrument | Physics | 11 | Expired |
| US5303309A | Digital sampling instrument | Physics | 10 | Expired |
| US6137043A | Digital sampling instrument employing cache memory | Physics | 10 | Expired |
| US8965942B1 | Systems and methods for sample rate tracking | Electricity | 9 | Active |
| US4404529A | Lowpass filter with electronic control of cutoff and resonance | Electricity | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.