Patents by Inventor Udeni SANGAKKARA

Udeni SANGAKKARA 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).

  • Speaker system, sound processing device, sound processing method, and recording medium
    Patent number: 11682375
    Abstract: A speaker system includes a wearable speaker capable of outputting a first sound which is a voice of a communication partner of a talker and a second sound, a microphone, and a sound processing device which processes a sound output from the wearable speaker and a sound picked up by the microphone. The sound processing device generates a reference signal by synthesizing a first signal indicating the first sound and a second signal indicating the second sound, outputs the first signal and the second signal to the wearable speaker, obtains a sound pickup signal including the voice of the talker from the microphone, performs, on the sound pickup signal, a process of cancelling the sound component output from the wearable speaker by using the reference signal, and outputs the sound pickup signal on which the cancellation process has been performed.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: June 20, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Udeni Sangakkara, Takuto Takizawa, Eiji Saitou, Yukiharu Wakiguchi, Minoru Umesako
  • SPEAKER SYSTEM, SOUND PROCESSING DEVICE, SOUND PROCESSING METHOD, AND RECORDING MEDIUM
    Publication number: 20220068251
    Abstract: A speaker system includes a wearable speaker capable of outputting a first sound which is a voice of a communication partner of a talker and a second sound, a microphone, and a sound processing device which processes a sound output from the wearable speaker and a sound picked up by the microphone. The sound processing device generates a reference signal by synthesizing a first signal indicating the first sound and a second signal indicating the second sound, outputs the first signal and the second signal to the wearable speaker, obtains a sound pickup signal including the voice of the talker from the microphone, performs, on the sound pickup signal, a process of cancelling the sound component output from the wearable speaker by using the reference signal, and outputs the sound pickup signal on which the cancellation process has been performed.
    Type: Application
    Filed: August 6, 2019
    Publication date: March 3, 2022
    Inventors: Udeni SANGAKKARA, Takuto TAKIZAWA, Eiji SAITOU, Yukiharu WAKIGUCHI, Minoru UMESAKO