220265 ⎘
Gain control in amplifiers or frequency changers without distortion of the input signal; Automatic control in amplifiers having semiconductor devices; Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems Muting when no signals or only weak signals are present
RADIO SQUELCH CONTROL SYSTEM
#2Electronic Headset Accessory
#3GAMING HEADSET WITH PROGRAMMABLE AUDIO PATHS
#4ROBUST VOICE ACTIVITY DETECTOR SYSTEM FOR USE WITH AN EARPHONE
#5Gaming headset with programmable audio paths
#6Method and device for acute sound detection and reproduction
#7Modular signal conversion apparatus and method
#8Electronic headset accessory
#9Apparatus for discarding power noise, and apparatus for converting audio signal
#10Audio signal muting apparatus, and digital signal conversion apparatus equipped with same
#11Robust voice activity detector system for use with an earphone
#12Adjustable compact line output converter with amplifier trigger
#13Circuit arrangement for compensating for signal attenuation during the transmission of signals from or to a mobile communications device, and associated method
#14Systems and methods for handling silence in audio streams
#15Systems and methods for handling silence in audio streams
#16Clamping audio signal paths
#17Wireless receiver
#18Music reproducing device with active control ground mode
#19Robust voice activity detector system for use with an earphone
#20Inverter- and-switched-capacitor-based squelch detector apparatus and method
#21Information processing apparatus, method for processing information, and program
#22Electronic headset accessory
#23Gaming headset with programmable audio paths
#24Systems and methods to suppress noise and idle tones
#25Inverter-and-switched-capacitor-based squelch detector apparatus and method
#26Dynamic volume control and multi-spatial processing protection
#27Apparatus and method of enhancing quality of speech codec
#28Apparatus and method of enhancing quality of speech codec
#29Efficiency optimizer of an audio power amplifier for car radio
#30AUDIO DRIVER CIRCUIT
#31Noise control circuit and audio receiving system using the same
#32Squelch detection circuit and method
#33Gaming headset with programmable audio paths
#34Compressor Based Dynamic Bass Enhancement with EQ
#35Infrared receiving unit
#36PROGRAMMABLE NOISE GATE FOR AUDIO AMPLIFIER EMPLOYING A COMBINATION OF LOW-NOISE AND NOISE-REJECTING ANALOG AND DIGITAL SIGNAL PROCESSING
#37VOLUME ADJUSTING METHOD FOR DIGITAL AUDIO SIGNAL
#38Amplification apparatus
#39Methods for voice communication through personal emergency response system
#40High perceived audio quality class D amplifier
#41DYNAMIC VOLUME CONTROL AND MULTI-SPATIAL PROCESSING PROTECTION
#42Dynamic volume control and multi-spatial processing protection
#43Apparatus and method of enhancing quality of speech codec
#44Apparatus and method for controlling audio output, and mobile terminal system using the same
#45Power amplifier
#46Sound effect circuit and processing method
#47OOB (out of band) detection circuit and serial ATA system
#48Method and system for reducing effects of noise producing artifacts in a speech signal
#49Audio control method and audio processing system
#50Radio with automatic voice enhancement
#51Squelch detector
#52Method and system for reducing effects of noise producing artifacts in a voice codec
#53Audio muting circuit and audio muting method
#54Automute detection in digital audio amplifiers