Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Thermal response to – or generation of – sound vibration
Reexamination Certificate
2009-07-02
2011-11-29
Kuntz, Curtis (Department: 2614)
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Thermal response to, or generation of, sound vibration
C381S423000
Reexamination Certificate
active
08068626
ABSTRACT:
An apparatus, the apparatus includes an electromagnetic signal device; a medium; and a sound wave generator. The sound wave generator includes a carbon nanotube structure. The carbon nanotube structure includes one or more carbon nanotube films. Each carbon nanotube film includes a plurality of carbon nanotubes substantially parallel to each other and joined side by side via van der Waals attractive force. The electromagnetic signal device transmits an electromagnetic signal to the carbon nanotube structure. The carbon nanotube structure converts the electromagnetic signal into heat. The heat transfers to the medium causing a thermoacoustic effect.
REFERENCES:
patent: 1528774 (1925-03-01), Kranz
patent: 4334321 (1982-06-01), Edelman
patent: 4503564 (1985-03-01), Edelman et al.
patent: 4641377 (1987-02-01), Rush et al.
patent: 4766607 (1988-08-01), Feldman
patent: 5694477 (1997-12-01), Kole
patent: 6473625 (2002-10-01), Williams et al.
patent: 6803116 (2004-10-01), Ikeda
patent: 6808746 (2004-10-01), Dai et al.
patent: 6921575 (2005-07-01), Horiuchi et al.
patent: 7045108 (2006-05-01), Jiang et al.
patent: 7393428 (2008-07-01), Huang et al.
patent: 7723684 (2010-05-01), Haddon et al.
patent: 7799163 (2010-09-01), Mau et al.
patent: 2001/0005272 (2001-06-01), Buchholz
patent: 2005/0040371 (2005-02-01), Watanabe et al.
patent: 2005/0201575 (2005-09-01), Koshida et al.
patent: 2006/0104451 (2006-05-01), Browning et al.
patent: 2006/0147081 (2006-07-01), Mango et al.
patent: 2007/0166223 (2007-07-01), Jiang et al.
patent: 2008/0095694 (2008-04-01), Nakayama et al.
patent: 2008/0170982 (2008-07-01), Zhang et al.
patent: 2009/0016951 (2009-01-01), Kawabata et al.
patent: 2009/0145686 (2009-06-01), Watabe et al.
patent: 2787870 (2006-06-01), None
patent: 1821048 (2006-08-01), None
patent: 2003198281 (2003-07-01), None
patent: 2004229250 (2004-08-01), None
patent: 2005189322 (2005-07-01), None
patent: 2005333601 (2005-12-01), None
patent: WO0073204 (2000-12-01), None
patent: WO2007099975 (2007-09-01), None
Arnold, H.D., Crandall I.B.; “The Thermophone as a Precision Source of Sound”; Jul. 31, 1917; The American Physical Society Rev.; vol. 10, pp. 22-38.
Kaili Jiang, Qunqing Li, Shoushan Fan, Spinning continuous carbon nanotube yarns, Nature, Oct. 24, 2002, pp. 801, vol. 419.
Yang Wei, Kaili Jiang, Xiaofeng Feng, Peng Liu et al., Comparative studies of multiwalled carbon nanotube sheets before and after shrinking, Physical Review B, Jul. 25, 2007, vol. 76, 045423.
Lina Zhang, Chen Feng, Zhuo Chen, Liang Liu et al., Superaligned Carbon Nanotube Grid for High Resolution Transmission Electron Microscopy of Nanomaterials, Nano Letters, 2008, pp. 2564-2569, vol. 8, No. 8.
Strutt John William, Rayleigh Baron, The Theory of Sound, 1926, pp. 226-235, vol. 2.
William Henry Preece, On Some Thermal Effects of Electric Currents, Proceedings of the Royal Society of London, 1879-1880, pp. 408-411, vol. 30.
Braun Ferdinand, Notiz uber Thermophonie, Ann. Der Physik, Apr. 1898, pp. 358-360,vol. 65.
Frank P. Incropera, David P. Dewitt et al., Fundamentals of Heat and Mass Transfer, 6th ed., 2007, pp. A-5, Wiley:Asia.
Lin Xiao, Zhuo Chen, Chen Feng, Liang Liu et al., Flexible, Stretchable, Transparent Carbon Nanotube Thin Film Loudspeakers, Nano Letters, 2008, pp. 4539-4545, vol. 8, No. 12, US.
Kai Liu, Yinghui Sun, Lei Chen, Chen Feng, Xiaofeng Feng, Kaili Jiang et al., Controlled Growth of Super-Aligned Carbon Nanotube Arrays for Spinning Continuous Unidirectional Sheets with Tunable Physical Properties, Nano Letters, 2008, pp. 700-705, vol. 8, No. 2.
Swift Gregory W., Thermoacoustic Engines and Refrigerators, Physics Today, Jul. 1995, pp. 22-28, vol. 48.
H.D. Arnold, I.B. Crandall, The Thermophone as a Precision Source of Sound, Physical Review, 1917, pp. 22-38, vol. 10.
W. Yi, L.Lu, Zhang Dianlin et al., Linear Specific Heat of Carbon Nanotubes, Physical Review B, Apr. 1, 1999, vol. 59, No. 14, R9015-9018.
Zhuangchun Wu, Zhihong Chen, Xu Du et al.,Transparent, Conductive Carbon Nanotube Films, Science, Aug. 27, 2004, pp. 1273-1276, vol. 305.
Mei Zhang, Shaoli Fang, Anvar A. Zakhidov, Sergey B. Lee et al., Strong, Transparent, Multifunctional, Carbon Nanotube Sheets, Science, Aug. 19, 2005, pp. 1215-1219, vol. 309.
Edward C. Wente, The Thermophone, Physical Review, 1922, pp. 333-345,vol. 19.
J.J.Hopfield, Spectra of Hydrogen, Nitrogen and Oxygen in the Extreme Ultraviolet, Physical Review, 1922, pp. 573-588,vol. 20.
P. De Lange, On Thermophones, Proceedings of the Royal Society of London. Series A, Apr. 1, 1915, pp. 239-241, vol. 91, No. 628.
Xiaobo Zhang, Kaili Jiang, Chen Feng, Peng Liu et al., Spinning and Processing Continuous Yarns from 4-Inch Wafer Scale Super-Aligned Carbon Nanotube Arrays, Advanced Materials, 2006, pp. 1505-1510, vol. 18.
Amos, S.W.; “Principles of Transistor Circuits”; 2000; Newnes-Butterworth-Heinemann; 9th ed.;p. 114.
Lee et al., Photosensitization of nonlinear scattering and photoacoustic emission from single-walled carbon nanotubes, Applied Physics Letters, Mar. 13, 2008, 92, 103122.
Alexander Graham Bell, Selenium and the Photophone, Nature, Sep. 23, 1880, pp. 500-503.
Silvanus P. Thompson, The Photophone, Nature, Sep. 23, 1880, vol. XXII, No. 569, pp. 481.
Chen Zhuo
Fan Shou-Shan
Feng Chen
Jiang Kai-Li
Xiao Lin
Altis Law Group, Inc.
Beijing FUNATE Innovation Technology Co., Ltd.
Hon Hai Precision Industry Co. Ltd.
Kuntz Curtis
Robinson Ryan
LandOfFree
Thermoacoustic device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermoacoustic device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermoacoustic device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4298047