Amplifier power supply controlled by audio signal

Audio transducer

Automatic microphone mixer

Automatic turn off system

Circuit and method for providing a light energy response to an e

Device for adjusting a movable electro-acoustic sound transducer

Dynamic allocation of power supplied by a power supply and...

External ear canal voice detection

Hand-free switch device for wireless intercom

Impulsive communication activated computer control device...

Interactive audio control system

Light sensitive switch with microphone

Method and apparatus for activating switches in response to diff

Method and apparatus for activating switches in response to diff

Method and apparatus for voice emulation

Method and apparatus to suspend speech

Method and system for controlling an external machine by a voice

Method for improving the reliability of voice controls of functi

Microphone attached remote controller

Multi-feature speech/music discrimination system