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SG113393A1 - Method and apparatus for enhancing the sound quality of an ultrasonic loudspeaker system - Google Patents

Method and apparatus for enhancing the sound quality of an ultrasonic loudspeaker system

Info

Publication number
SG113393A1
SG113393A1 SG200105345A SG200105345A SG113393A1 SG 113393 A1 SG113393 A1 SG 113393A1 SG 200105345 A SG200105345 A SG 200105345A SG 200105345 A SG200105345 A SG 200105345A SG 113393 A1 SG113393 A1 SG 113393A1
Authority
SG
Singapore
Prior art keywords
enhancing
sound quality
loudspeaker system
ultrasonic loudspeaker
ultrasonic
Prior art date
Application number
SG200105345A
Inventor
Gan Woon-Seng
Er Meng-Hwa
Hin Liew Yew
Lee Chee-Mun
Andi Karnapi Furi
Original Assignee
Univ Nanyang
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Nanyang filed Critical Univ Nanyang
Priority to SG200105345A priority Critical patent/SG113393A1/en
Priority to PCT/SG2002/000195 priority patent/WO2003019125A1/en
Priority to US10/789,243 priority patent/US7146011B2/en
Publication of SG113393A1 publication Critical patent/SG113393A1/en

Links

SG200105345A 2001-08-31 2001-08-31 Method and apparatus for enhancing the sound quality of an ultrasonic loudspeaker system SG113393A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SG200105345A SG113393A1 (en) 2001-08-31 2001-08-31 Method and apparatus for enhancing the sound quality of an ultrasonic loudspeaker system
PCT/SG2002/000195 WO2003019125A1 (en) 2001-08-31 2002-08-28 Steering of directional sound beams
US10/789,243 US7146011B2 (en) 2001-08-31 2004-02-28 Steering of directional sound beams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SG200105345A SG113393A1 (en) 2001-08-31 2001-08-31 Method and apparatus for enhancing the sound quality of an ultrasonic loudspeaker system

Publications (1)

Publication Number Publication Date
SG113393A1 true SG113393A1 (en) 2005-08-29

Family

ID=35125810

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200105345A SG113393A1 (en) 2001-08-31 2001-08-31 Method and apparatus for enhancing the sound quality of an ultrasonic loudspeaker system

Country Status (1)

Country Link
SG (1) SG113393A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU647797B2 (en) * 1990-06-26 1994-03-31 Ericsson - Ge Mobile Communications Holding Inc. A method and device for processing an analog signal
WO1998002976A1 (en) * 1996-07-17 1998-01-22 American Technology Corporation Directed radiator with modulated ultrasonic sound
JP2000209691A (en) * 1999-01-12 2000-07-28 Mk Seiko Co Ltd Parametric speaker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU647797B2 (en) * 1990-06-26 1994-03-31 Ericsson - Ge Mobile Communications Holding Inc. A method and device for processing an analog signal
WO1998002976A1 (en) * 1996-07-17 1998-01-22 American Technology Corporation Directed radiator with modulated ultrasonic sound
JP2000209691A (en) * 1999-01-12 2000-07-28 Mk Seiko Co Ltd Parametric speaker

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