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Patent Granted

  • Singapore Patent

    METHOD AND APPARATUS FOR ENHANCING THE SOUND QUALITY OF AN ULTRASONIC LOUDSPEAKER SYSTEM

    Singapore Patent filed on 31 Aug 2001, granted on 31 July 2007, Singapore Patent No. 113393.

  • Singapore Patent

    METHOD AND APPARATUS FOR GENERATING DIRECTIONAL SOUND USING AN ULTRASONIC CARRIER WAVE

    Singapore Patent filed on 31 Aug 2001, granted on 30 Dec 2005, Singapore Patent No. 114498.

  • Singapore Patent

    STEERING OF DIRECTIONAL SOUND BEAMS

    Singapore Patent filed on 25 Jan 2002, granted on 31 Mar 2006, Singapore Patent No. 11929.

  • Singapore Patent

    A SYSTEM AND METHOD FOR PROCESSING AN INPUT SIGNAL TO PRODUCE 3D AUDIO EFFECTS

    Singapore Patent granted on 6 May 2015, Singapore Patent No. 181675.

  • Singapore Patent

    AA DIRECTIONAL SOUND SYSTEM

    Singapore Patent granted on 9 October 2014, Singapore Patent No. 178241.

  • Japan Patent

    A DIRECTIONAL SOUND SYSTEM

    Japan Patent granted on 10 Januaty 2014, Japan Patent No. 56450820.

  • Japan Patent

    A SYSTEM AND METHOD FOR PROCESSING AN INPUT SIGNAL TO PRODUCE 3D AUDIO EFFECTS

    Japan Patent granted with Patent No. 56121216.

  • US Patent

    STEERING OF DIRECTIONAL SOUND BEAMS

    Patent filed in PCT on Aug 2002. Filed in USPTO and granted on 5 Dec 2006, US Patent No. 7,146,011.

  • US Patent

    MULTI-BAND AUDIO BEAMING: NEW METHOD IN DISTORTION REDUCTION AND ITS SUITABILITY FOR DIFFERENT ULTRASONIC EMITTERS

    Filed as a US provisional patent application (2009), and filed as PCT patent on Aug 2010 (PCT/SG2010/000312)(Ref: TD/037/09).

  • US Patent

    A SYSTEM AND METHOD FOR PROCESSING AN INPUT SIGNAL TO PRODUCE 3D AUDIO EFFECTS

    Filed as a US provisional patent application (2010), and filed as PCT patent on 31 Jan 2011 (PAT/091/09/10/PCT)(Ref: TD/091/09).

  • US Patent

    3D- AUDIO HEADPHONES USING CONCHA AND VIBRATION EXCITATIONS / DIGITAL 3D MEDIA

    Filed as a US provisional patent application (2011) application number 61/470,135. Awarded PCT patents( PCT/SG2012/000116) (WO2012134399 A1) on 4 Oct 2012.

  • US Patent

    A METHOD OF ESTIMATING TIME DIFFERENCE OF ARRIVAL

    Filed as a US provisional patent application (2012) application number PCT/SG2012/000250. Awarded PCT patents WO2013009264 on 17 Jan 2013.

  • US Patent

    NOISE CANCELLATION DEVICE RETROFITTED ON OPENABLE FAÇADE OPENINGS

    Filed as a US provisional patent application (2020) Ref No: 2020-165-01-SG PRV.

  • Singapore Patent

    LOW COST, SCALABLE AND MULTIPLE CHANNEL ACTIVE NOISE CONTROL FOR OPEN WINDOWS

    Filed as a Singapore provisional patent application number 10201802277R.