Piezoelectric Earphone for ANC with Built-In Microphone

Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F03%3A03086206" target="_blank" >RIV/68407700:21230/03:03086206 - isvavai.cz</a>
Výsledek na webu
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DOI - Digital Object Identifier
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Jazyk výsledku
angličtina
Název v původním jazyce
Piezoelectric Earphone for ANC with Built-In Microphone
Popis výsledku v původním jazyce
Electrodynamic acoustic transducer in headset/earphone with active noise control (ANC) system has some features which complicate design of ANC system. Its higher power demand challenges usage of power amplifier, its bigger group delay causes bigger geometry of the ANC system in respect to keep causality. Wide frequency transfer function of acoustic transducer brings on necessity to use an interpolation filter adding delay and makes ANC headset system larger. Piezoelectric transducer in newly designed earphone with built-in microphone was solution.
Název v anglickém jazyce
Piezoelectric Earphone for ANC with Built-In Microphone
Popis výsledku anglicky
Electrodynamic acoustic transducer in headset/earphone with active noise control (ANC) system has some features which complicate design of ANC system. Its higher power demand challenges usage of power amplifier, its bigger group delay causes bigger geometry of the ANC system in respect to keep causality. Wide frequency transfer function of acoustic transducer brings on necessity to use an interpolation filter adding delay and makes ANC headset system larger. Piezoelectric transducer in newly designed earphone with built-in microphone was solution.

Projekt
<a href="/cs/project/GA102%2F00%2F1661" target="_blank" >GA102/00/1661: Elektroakustické měniče s elektrickým polem</a><br>
Návaznosti
Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění
2003
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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