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| 9985595 | Loudness-based audio-signal compensation | Jan 25, 17 | May 29, 18 | GUOGUANG ELECTRIC COMPANY LIMITED |
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| 9948256 | Speaker volume preference learning | Mar 27, 17 | Apr 17, 18 | International Business Machine Corporation |
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| 9921801 | Control method and control device | Jul 01, 16 | Mar 20, 18 | PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA |
| 9923536 | Volume leveler controller and controlling method | Oct 04, 16 | Mar 20, 18 | DOLBY LABORATORIES LICENSING CORPORATION |
| 9923534 | Automatic volume control for land mobile radio | Jul 31, 15 | Mar 20, 18 | E.F. JOHNSON COMPANY |
| 9923535 | Noise control method and device | Dec 29, 14 | Mar 20, 18 | BEIJING ZHIGU RUI TUO TECH CO., LTD |
| 9917564 | System and method to monitor audio loudness and provide audio automatic gain control | Aug 07, 17 | Mar 13, 18 | THE DIRECTV GROUP, INC. |
| 9911404 | Combined active noise cancellation and noise compensation in headphone | Sep 30, 15 | Mar 06, 18 | DOLBY LABORATORIES LICENSING CORPORATION |
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| 9905242 | Signal analysis device, signal control device, its system, method, and program | Jun 26, 08 | Feb 27, 18 | NEC CORPORATION |
| 9899980 | Situation responsive audio system | Feb 07, 17 | Feb 20, 18 | BELL HELICOPTER TEXTRON INC. |
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| 9870678 | Dynamic alarm system for reducing alarm fatigue | Aug 04, 16 | Jan 16, 18 | VANDERBILT UNIVERSITY |