Patents by Inventor Junhui LAW

Junhui LAW has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Audio-effect-activated scent generation method and system
    Patent number: 11409980
    Abstract: Time-varying scent determined by audio-meaningful events, such as gun firing, in an audio signal is generated by first computing a spectrogram thereof. A fingerprint, each having feature points, can be extracted from the spectrogram over a time window. The plurality of feature points is hashed to give a hash code. A sequence of hash codes obtained over multiple time windows is correlated with predetermined hash-code segments of known audio-meaningful events stored in a database. A matched audio-meaningful event having a highest correlation is identified. The scent-generating recipe corresponding to the matched audio-meaningful event is retrieved. Atomizers are used to vaporize scent-generating substances to generate the time-variant scent. Since the hash code has a fixed length and a smaller size than the plurality of feature points, storage requirements of the database and computation requirements of correlation calculation are reduced by using the hash code rather than the plurality of feature points.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: August 9, 2022
    Assignee: Acoustic Arc International Limited
    Inventors: Ho-Yin Chan, Ka Wai Kong, Junhui Law, Meng Chen, Wen Jung Li, Boa Fung Chau, Kak Man Chan
  • Audio-Effect-Activated Scent Generation Method and System
    Publication number: 20200202102
    Abstract: Time-varying scent determined by audio-meaningful events, such as gun firing, in an audio signal is generated by first computing a spectrogram thereof. A fingerprint, each having feature points, can be extracted from the spectrogram over a time window. The plurality of feature points is hashed to give a hash code. A sequence of hash codes obtained over multiple time windows is correlated with predetermined hash-code segments of known audio-meaningful events stored in a database. A matched audio-meaningful event having a highest correlation is identified. The scent-generating recipe corresponding to the matched audio-meaningful event is retrieved. Atomizers are used to vaporize scent-generating substances to generate the time-variant scent. Since the hash code has a fixed length and a smaller size than the plurality of feature points, storage requirements of the database and computation requirements of correlation calculation are reduced by using the hash code rather than the plurality of feature points.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 25, 2020
    Inventors: Ho-Yin CHAN, Ka Wai KONG, Junhui LAW, Meng CHEN, Wen Jung LI, Boa Fung CHAU, Kak Man CHAN