СПИСОК патентов США - подгруппа МПК16 H04R3/06
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| № п/п | Номер патента | Название патента | |||
2017 | |||||
| 1 | 9602924 | Microphone with programmable frequency response | |||
| 2 | 9590570 | Impedance converter circuit for condenser microphone | |||
| 3 | 9584931 | Middle ear implantable microphone | |||
2016 | |||||
| 4 | 9471090 | Method and apparatus for synchronizing hearing instruments via wireless communication | |||
| 5 | 9414165 | Acoustic sensor resonant peak reduction | |||
| 6 | 9357296 | Switchable attenuation circuit for MEMS microphone systems | |||
| 7 | 9344805 | Micro-electromechanical system microphone | |||
| 8 | 9332342 | Microphone amplifier circuit | |||
2015 | |||||
| 9 | 9148729 | Microphone with programmable frequency response | |||
| 10 | 9084048 | Audio systems and methods employing an array of transducers optimized for particular sound frequencies | |||
1993 | |||||
| 11 | 5184331 | Transducer circuit for removing reactive component of transducer signal | |||
1984 | |||||
| 12 | 4461931 | Frequency response equalizing network for an electrostatic loudspeaker | |||
1982 | |||||
| 13 | 4361735 | Electret microphone circuit | |||
| 14 | 4323736 | Step-up circuit for driving full-range-element electrostatic loudspeakers | |||
1977 | |||||
| 15 | 4002859 | Multi-mode electrostatic microphone construction | |||
1976 | |||||
| 16 | 3961202 | Power supply circuit for use with an electrostatic transducer | |||
| 17 | 3956716 | Pulse width modulated signal amplifier | |||
| 18 | 3944756 | Electret microphone | |||
| © 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017 | |||||