Patents by Inventor SHINSAKU SAIJO

SHINSAKU SAIJO 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).

  • Patent number: 12003945
    Abstract: To provide an audio reproduction device including: a signal processing circuit that generates multi-channel audio data; an attenuation amount control unit that is connected to the signal processing circuit and controls an attenuation amount of audio data of each channel; and a speaker device that is driven by a multi-channel audio signal from the attenuation amount control unit and has multi-channel speakers including a woofer, in which the attenuation amount control unit estimates, from an audio data value of each channel, a total value of currents flowing through the speaker device, and controls the attenuation amount in such a way that the estimated total value of currents does not exceed a predetermined value that has been set in advance, and the attenuation amount is controlled in accordance with a priority that has been set in advance in such a way that relationships between the channels are maintained.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: June 4, 2024
    Assignee: SONY GROUP CORPORATION
    Inventor: Shinsaku Saijo
  • Publication number: 20210385603
    Abstract: To provide an audio reproduction device including: a signal processing circuit that generates multi-channel audio data; an attenuation amount control unit that is connected to the signal processing circuit and controls an attenuation amount of audio data of each channel; and a speaker device that is driven by a multi-channel audio signal from the attenuation amount control unit and has multi-channel speakers including a woofer, in which the attenuation amount control unit estimates, from an audio data value of each channel, a total value of currents flowing through the speaker device, and controls the attenuation amount in such a way that the estimated total value of currents does not exceed a predetermined value that has been set in advance, and the attenuation amount is controlled in accordance with a priority that has been set in advance in such a way that relationships between the channels are maintained.
    Type: Application
    Filed: October 9, 2019
    Publication date: December 9, 2021
    Inventor: SHINSAKU SAIJO