Power management for hearing aid device

Power supply for microphone

Power supply noise immunity for audio amplifier

Power-off noise suppression circuit and associated methods...

Power-saving mode for hearing aids

Powered volume control for distributed audio system

Pre-formed speaker grille cloth

Preamplifier arrangement for a drum microphone

Precise amplitude correction circuit

Precisely stabilized piezoelectric receiver

Precision low jitter oscillator circuit

Precision micro-hole for extended life batteries

Precision micro-hole for extended life batteries

Predictive protection arrangement for electroacoustic transducer

Predictive scanning input system for rapid selection of visual i

Predictive signal coding with partitioned quantization

Predistorted AM stereo transmission

Preprocessing method for nonlinear acoustic system

Preprocessing system for speech recognition

Preprogrammed hearing assistance device with program...