Lars Risbo
44Patents
13h-index
31Co-inventors
81Inventor score
Filing activity: Oct 22, 1998 → Sep 1, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8369973B2 | Efficient asynchronous sample rate conversion | Electricity | 53 | Active |
| US7078964B2 | Detection of DC output levels from a class D amplifier | Electricity | 43 | Expired |
| US7378904B2 | Soft transitions between muted and unmuted states in class D audio amplifiers | Electricity | 35 | Expired |
| US6518838B1 | Circuit for compensating noise and errors from an output state of a digital amplifier | Electricity | 33 | Expired |
| US7142050B2 | Recovery from clipping events in a class D amplifier | Electricity | 26 | Expired |
| US6657566B1 | Conversion of a PCM signal into a UPWM signal | Electricity | 23 | Expired |
| US6373336B1 | Method of attenuating zero crossing distortion and noise in an amplifier, an amplifier and uses of the method and the amplifier | Electricity | 23 | Expired |
| US7750731B2 | PWM loop filter with minimum aliasing error | Electricity | 22 | Active |
| US7279965B2 | Reduction of audible artifacts in an audio system | Electricity | 22 | Expired |
| US7002406B2 | Loop filter for class D amplifiers | Electricity | 16 | Expired |
| US7492217B2 | On-the-fly introduction of inter-channel delay in a pulse-width-modulation amplifier | Electricity | 16 | Expired |
| US7034609B2 | Switching circuits | Electricity | 13 | Expired |
| US7425874B2 | All-digital phase-locked loop for a digital pulse-width modulator | Electricity | 13 | Active |
| US8144043B2 | Shaping inter-symbol-interference in sigma delta converter | Electricity | 12 | Active |
| US6720825B2 | Method and circuit for reduction of audible turn-on and turn-off transients in switching amplifiers | Electricity | 11 | Expired |
| US7425864B2 | Recovery from clipping events in a class D amplifier | Electricity | 8 | Active |
| US8774419B2 | Thermal control of voice coils in loudspeakers | Electricity | 8 | Active |
| US7809346B2 | Digital audio receiver with reduced AM interference | Electricity | 8 | Active |
| US7894536B2 | Calibration model to mitigate data conversion errors | Electricity | 6 | Active |
| US7167056B2 | High performance analog charge pumped phase locked loop (PLL) architecture with process and temperature compensation in closed loop bandwidth | Electricity | 5 | Expired |
| US7773358B2 | Output current control and overload protection in digital audio amplifiers | Electricity | 5 | Active |
| US7903015B1 | Cascaded DAC architecture with pulse width modulation | Electricity | 4 | Active |
| US7626519B2 | Pulse-width modulation of pulse-code modulated signals at selectable or dynamically varying sample rates | Physics | 4 | Active |
| US7797065B2 | Automute detection in digital audio amplifiers | Electricity | 4 | Active |
| US7071752B2 | Amplifiers | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.