Title:
METHOD AND SYSTEM FOR GENERATION OF SOUND FIELDS
Document Type and Number:
WIPO Patent Application WO/2014/076707
Kind Code:
A3
Abstract:
A system and method are presented for generating a localized audible sound field at a designated spatial location. The method comprises: providing sound-data indicative of an audible sound to be produced and location-data indicative of a designated spatial location at which the audible sound is to be produced; and utilizing the sound-data and determining frequency content of at least two ultrasound beams to be transmitted by an acoustic transducer system including an arrangement of a plurality of ultrasound transducer elements for generating said audible sound. The at least two ultrasound beams include at least one primary audio modulated ultrasound beam, whose frequency contents includes at least two ultrasonic frequency components selected to produce the audible sound after undergoing non-linear interaction in a non linear medium, and one or more additional ultrasound beams each including one or more ultrasonic frequency components. The location-data is utilized for determining at least two focal points for the at least two ultrasound beams respectively such that focusing the at least two ultrasound beams on the at least two focal points enables generation of a localized sound field with the audible sound in the vicinity of the designated spatial location.
Inventors:
BABAYOFF NOAM (IL)
SHANI TOMER (IL)
SHANI TOMER (IL)
Application Number:
PCT/IL2013/050952
Publication Date:
August 14, 2014
Filing Date:
November 18, 2013
Export Citation:
Assignee:
NOVETO SYSTEMS LTD (IL)
International Classes:
H04B11/00; G10K15/02; H04R1/40
Domestic Patent References:
| WO2006005938A1 | 2006-01-19 |
Foreign References:
| EP0973152A2 | 2000-01-19 |
Other References:
TANAKA NOBUO ET AL: "Active noise control using a steerable parametric array loudspeaker", THE JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, AMERICAN INSTITUTE OF PHYSICS FOR THE ACOUSTICAL SOCIETY OF AMERICA, NEW YORK, NY, US, vol. 127, no. 6, 1 June 2010 (2010-06-01), pages 3526 - 3537, XP012135480, ISSN: 0001-4966, DOI: 10.1121/1.3409483
JAMES J CROFT ET AL: "Theory, History, and the Advancement of Parametric Loudspeakers - A Technology Overview", 31 December 2003 (2003-12-31), pages 1 - 28, XP055040011, Retrieved from the Internet [retrieved on 20121004]
JAMES J CROFT ET AL: "Theory, History, and the Advancement of Parametric Loudspeakers - A Technology Overview", 31 December 2003 (2003-12-31), pages 1 - 28, XP055040011, Retrieved from the Internet
Attorney, Agent or Firm:
REINHOLD COHN AND PARTNERS (61 Tel Aviv, IL)
Download PDF:
Previous Patent: PCR REACTION MIXTURES AND METHODS OF USING SAME
Next Patent: TRANSPARENT PROXIMITY SENSOR
Next Patent: TRANSPARENT PROXIMITY SENSOR