| 9966910 | Power control method of amplifying module | Feb 17, 16 | May 08, 18 | Airoha Technology Corp. |
| 9948257 | Phantom-powered inline preamplifier with variable impedance loading and adjustable interface | Apr 04, 16 | Apr 17, 18 | Not available |
| 9948258 | Volume interactions for connected subwoofer device | Aug 26, 16 | Apr 17, 18 | Sonos Inc. |
| 9941846 | Power supplies | Nov 03, 16 | Apr 10, 18 | Sonos Inc. |
| 9929701 | LNA with programmable linearity | Sep 21, 16 | Mar 27, 18 | pSemi Corporation |
| 9917556 | Transmitter, transmission system, and transmission method | Aug 03, 15 | Mar 13, 18 | NEC CORPORATION |
| 9875078 | External amplifier interface | Dec 07, 16 | Jan 23, 18 | Metra Electronics Corporation |
| 9837963 | Signal processing device, and driving method and program thereof | Jun 08, 16 | Dec 05, 17 | Semiconductor Energy Laboratory Co., Ltd. |
| 9800216 | Bias circuitry for power amplifiers | Oct 01, 15 | Oct 24, 17 | SKYWORKS SOLUTIONS, INC. |
| 9729115 | Intelligently increasing the sound level of player | Apr 27, 12 | Aug 08, 17 | SONOS, INC. |
| 9729116 | Electronic device and audio output control method thereof | Jul 09, 15 | Aug 08, 17 | SAMSUNG ELECTRONICS CO., LTD. |
| 9685855 | Amplifier circuit and methods of operation thereof | Mar 30, 16 | Jun 20, 17 | CIRRUS LOGIC, INC. |
| 9686606 | Smart-line in processing | Feb 23, 15 | Jun 20, 17 | SONOS, INC. |
| 9681223 | Smart line-in processing in a group | Dec 05, 14 | Jun 13, 17 | SONOS, INC. |
| 9673700 | Amplifier circuit and methods of operation thereof | Jul 28, 16 | Jun 06, 17 | CIRRUS LOGIC, INC. |
| 9584083 | Loudness modification of multichannel audio signals | Mar 31, 14 | Feb 28, 17 | DOLBY LABORATORIES LICENSING CORPORATION |
| 9520850 | Power supplies | Sep 17, 14 | Dec 13, 16 | SONOS, INC. |
| 9484862 | Device and method for bias control of class A power RF amplifier | Sep 04, 14 | Nov 01, 16 | EFFICIENT POWER CONVERSION CORPORATION |
| 9479117 | Radio-frequency amplifier circuit and control voltage setting method for radio-frequency amplifier circuit | Oct 29, 15 | Oct 25, 16 | MURATA MANUFACTURING CO., LTD. |
| 9466300 | User profile based audio adjustment techniques | Mar 11, 15 | Oct 11, 16 | SONY CORPORATION, SONY NETWORK ENTERTAINMENT INTERNATIONAL LLC, |