Patents
Sitemap › H03 - Basic electronic circuitry › H03G - Control of amplification › H03G 7 - Volume compression or expansion in amplifiers
Patents for H03G 7 - Volume compression or expansion in amplifiers (2,243)
06/2013
06/19/2013EP2605403A2 Sound output device and method of adjusting sound volume
06/18/2013US8467547 Audio compressor with feedback
06/12/2013EP2602933A2 Analog signal transfer system, variable compressor and variable expander
06/05/2013CN103138697A Volume control method
05/2013
05/29/2013CN202957790U Bass intensifier and sounding device
05/29/2013CN202957789U Audio distortion adjusting and controlling apparatus
05/29/2013CN101764586B Sound volume correcting device, sound volume correcting method, sound volume correcting program, and electronic apparatus
05/16/2013DE102011118479A1 Method for transmitting data sent from transmitter to receiver, involves transmitting preamble signal for gain adjustment on transmission channel attenuation, and determining signal portion with applied gain theoretically existing amplitude
05/07/2013US8437482 Method, apparatus and computer program for calculating and adjusting the perceived loudness of an audio signal
04/2013
04/25/2013WO2013030572A3 Hearing dose management
04/17/2013CN103051301A Bass boosting device, bass boosting method and sound production equipment
04/10/2013CN103036518A Volume adjustment control module without transmission distortion
04/03/2013CN103023438A Audio distortion adjustment control equipment and audio distortion adjusting method
03/2013
03/28/2013WO2013041875A2 Dynamic range control
03/27/2013CN202841067U 放大器电路 Amplifier circuit
03/26/2013US8407059 Method and apparatus of audio matrix encoding/decoding
03/26/2013US8407045 Enhancing the intelligibility of received speech in a noisy environment
03/21/2013WO2013016325A3 Audio dynamics processing control system with exponential release response
03/07/2013WO2013030572A2 Hearing dose management
02/2013
02/19/2013US8379880 Methods and systems for determining audio loudness levels in programming
02/19/2013US8379869 Method and system for acoustic shock protection
02/06/2013CN102915741A Equal loudness contour based method for automatically recovering tone of voice signal according to volume adjustment
02/06/2013CN101807894B Volume correction device, volume correction method, and electronic equipment
02/05/2013CA2648237C Audio gain control using specific-loudness-based auditory event detection
01/2013
01/16/2013EP2546982A1 A variable gain amplifier circuit
01/08/2013US8351621 System and method for excursion limiting
01/02/2013CN101208742B Adapted audio response
12/2012
12/27/2012US20120328115 System for combining loudness measurements in a single playback mode
12/26/2012EP2538555A1 Control of a loudspeaker output
12/26/2012CN102843634A Control of loudspeaker output
12/26/2012CN101790843B Variable automatic limit control (alc) threshold for any desired compression curve
12/20/2012WO2012172109A1 Method for normalizing the power of a sound signal, and associated processing device
12/19/2012EP2534656A1 System and method for non-destructively normalizing loudness of audio signals within portable devices
12/19/2012CN101606316B Hierarchical control method for dynamic characteristic processing
12/04/2012US8326444 Method and apparatus for performing audio ducking
11/2012
11/29/2012DE10350475B4 Mehrkanalaudiosignalbegrenzer mit gemeinsamer Beschneidungserfassung Mehrkanalaudiosignalbegrenzer common with clipping detection
11/28/2012CN102804598A Method and circuit for controlling an output of an audio signal of a battery-powered device
11/22/2012US20120293228 Level control circuit, level control method, and level control system
11/20/2012US8315411 Dynamic volume control and multi-spatial processing protection
11/20/2012US8314893 Remote control and method for automatically adjusting the volume output of an audio device
11/14/2012EP2522156A1 Compressor based dynamic bass enhancement with eq
11/08/2012DE112011100216T5 Dynamische Bassverbesserung auf Kompressionsvorrichtungsbasis mit EQ Dynamic bass enhancement on compression device base with EQ
11/07/2012CN102771145A Compressor based dynamic bass enhancement with EQ
11/07/2012CN101183859B Audio compressor and audio compression method
10/2012
10/31/2012EP2518897A2 Signal processing device, method thereof, program, and data recording medium
10/31/2012CN102761312A Signal processing device, method thereof, program, and data recording medium
10/30/2012US8300849 Perceptually weighted digital audio level compression
10/24/2012EP1569350B1 Power limit device and digital radio transmitter using the same
10/24/2012CN102754151A System and method for non-destructively normalizing loudness of audio signals within portable devices
10/23/2012US8295499 Audio information processing and attack detection apparatus and method
10/18/2012US20120264481 Mobile Terminal, and Volume Adjusting Method and Device Thereof
10/17/2012CN102739178A Mixed signal dynamic range compression
10/11/2012WO2012138594A1 Automatic configuration of metadata for use in mixing audio programs from two encoded bitstreams
10/09/2012US8284960 User adjustable volume control that accommodates hearing
10/09/2012US8284959 Method and an apparatus for processing an audio signal
10/09/2012US8284954 BTSC encoder
10/02/2012US8280076 System and method for audio system configuration
09/2012
09/13/2012US20120230496 Scaling a plurality of signals to prevent amplitude clipping
09/12/2012EP2498401A1 Passive sound pressure level limiter with balancing circuit
09/12/2012CN102668374A Adaptive dynamic range enhancement of audio recordings
09/11/2012US8265301 Audio signal processing apparatus, audio signal processing method, program, and input apparatus
08/2012
08/29/2012EP2493071A1 Multiband compressor
08/28/2012US8254595 System and method of companding an input signal of an energy detecting receiver
08/15/2012EP2487792A1 Automatic gain control circuit and method for automatic gain control
08/15/2012EP2487791A1 Multiband compressor and adjustment method of same
08/15/2012EP2486654A1 Adaptive dynamic range enhancement of audio recordings
08/08/2012EP2485395A1 Audio Mixing Console avoiding Signal Level Overload
08/08/2012CN202374015U Rocking rechargeable mobile phone
08/07/2012US8238578 Electroacoustical transducing with low frequency augmenting devices
07/2012
07/25/2012CN102611402A Dynamic range compression circuit and class d amplifier
07/18/2012EP2477418A1 Signal processing method
07/18/2012CN102598505A Signal processing device and method, program, and data recording medium
07/11/2012CN102577114A Multiband compressor
07/11/2012CN102577113A Multiband compressor and adjustment method of same
07/11/2012CN102571015A Audio-signal processing apparatus and method, and program
07/04/2012CN1973434B Method for correcting metadata affecting the playback loudness and dynamic range of audio information
07/04/2012CN101694987B Loudness control system and control method thereof
07/04/2012CN101432965B Audio gain control using specific-loudness-based auditory event detection
06/2012
06/27/2012EP2469708A1 Amplifier current consumption control
06/26/2012US8208659 Method and apparatus for scaling signals to prevent amplitude clipping
06/26/2012US8208656 Array microphone system including omni-directional microphones to receive sound in cone-shaped beam
06/20/2012EP2466917A2 Audio-signal processing apparatus and method, and program
06/19/2012US8204255 Method of distortion-free signal compression
06/13/2012EP1813026B1 Transmitter and receiver for a wireless audio transmission system
06/12/2012US8199936 Signal converter, output amplifying device, audio apparatus, and transmitting and receiving system
05/2012
05/23/2012CN101529721B Audio dynamics processing using a reset
05/16/2012CN102461207A Voice reproduction device, voice reproduction method, and program
05/09/2012EP1145451B1 Improvements in or relating to polyphase receivers
05/08/2012US8175288 User interface for mixing sounds in a media application
04/2012
04/26/2012US20120101816 Enhancing the intelligibility of received speech in a noisy environment
04/25/2012EP2443744A1 Method and circuit for controlling an output of an audio signal of a battery-powered device
04/25/2012CN1898988B Audio output apparatus
04/11/2012CN102412799A 音频放大器匹配声音负载的方法及装置 Audio amplifier matching method and apparatus for loading a sound
04/11/2012CN101378250B Audio-signal processing apparatus and method
03/2012
03/28/2012EP1869765B1 Compander system
03/28/2012CN101501988B Audio-peak limiting in slow and fast stages
03/21/2012CN101635561B Audio play device and volume control method
03/15/2012WO2012033099A1 Signal processing device and method, program, and data recording medium
03/15/2012DE102010040689A1 Audio system for use in motor car, has processor device coupled with audio sources and audio compressor, which compresses audio signal based on audio source change from one source to another source based on audio compressor threshold value
03/15/2012CA2778776A1 Signal processing apparatus and method, program, and data recording medium
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