TY - GEN
T1 - The acoustical design of slim size piezoelectric speakers for mobile phones
AU - Kuroda, Jun
AU - Onishi, Yasuharu
AU - Murara, Yukio
AU - Komoda, Motoyoshi
AU - Tsunoda, Kazuyuki
AU - Takahashi, Masatake
AU - Oikawa, Yasuhiro
AU - Yamasaki, Yoshio
PY - 2010/12/1
Y1 - 2010/12/1
N2 - Recently, market demand for slim mobile phones has been increasing. Speakers are an important device in mobile phones because they create an interface with the phone user. However, due to the thickness of conventional electrodynamic speakers, designers have been restricted in how they design the mobile phone case. Piezoelectric speakers could solve this problem, because they are no more than 1.0 mm thick. We therefore developed an ultra-thin piezoelectric speaker with a thickness of less than 0.9 mm. Piezoelectric speakers, however, differ from electrodynamic speakers in certain ways, requiring the formulation of guidelines for optimum design. In this study, we examined the relationship between design factors such as the acoustic structure, damping of phone case vibration, and electrical pass design and the acoustic characteristics in order to achieve high-quality sound in a slim mobile phone that uses our piezoelectric speaker. Copyright
AB - Recently, market demand for slim mobile phones has been increasing. Speakers are an important device in mobile phones because they create an interface with the phone user. However, due to the thickness of conventional electrodynamic speakers, designers have been restricted in how they design the mobile phone case. Piezoelectric speakers could solve this problem, because they are no more than 1.0 mm thick. We therefore developed an ultra-thin piezoelectric speaker with a thickness of less than 0.9 mm. Piezoelectric speakers, however, differ from electrodynamic speakers in certain ways, requiring the formulation of guidelines for optimum design. In this study, we examined the relationship between design factors such as the acoustic structure, damping of phone case vibration, and electrical pass design and the acoustic characteristics in order to achieve high-quality sound in a slim mobile phone that uses our piezoelectric speaker. Copyright
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UR - http://www.scopus.com/inward/citedby.url?scp=84869136535&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84869136535
SN - 9781617827457
T3 - 20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society
SP - 1170
EP - 1177
BT - 20th International Congress on Acoustics 2010, ICA 2010 - Incorporating Proceedings of the 2010 Annual Conference of the Australian Acoustical Society
T2 - 20th International Congress on Acoustics 2010, ICA 2010 - Incorporating the 2010 Annual Conference of the Australian Acoustical Society
Y2 - 23 August 2010 through 27 August 2010
ER -