Toa Corporation

Yuma Kawai

Koji Kawaguchi

An AI control device, which identifies individual users from a plurality of users to receive input data, and is connectable to a server device that generates a trained model based on input data for each user, includes a control unit, and a communication unit connected to the server device. The control unit acquires input data, associates acquired input data and identifying information used to identify the user of the AI control device, and sends the data and information to the server device via the communication unit. The control unit uses the sent acquired input data to execute a trained model that is generated separately from trained models of other users by the server device, and that learns characteristics of acquired input data and detects input data having the same characteristics from unknown input data.

AI control device, server device connected to AI control device, and AI control method

[Object] To downsize a power amplifier, while keeping isolation between a transmission line and ground potential. [Means to Realize Object] Two terminals () of an audio signal source () are connected to an input of an isolation input circuit (). An audio signal developed, being isolated from the input-side, between two output-side terminals () of the isolation input circuit () are inputted to a power amplifying stage (). The power amplifying stage () amplifies the audio signal and outputs it at a high voltage from two output terminals () to a plurality of loudspeakers () without using an insulation transformer. Operating power is supplies to the power amplifying stage () from two power supply terminals () of a DC power supply (). One () of the terminals of the insulation input circuit (), one () of the output terminals of the power amplifying stage () and one () of the power supply terminals of the DC power supply () are connected together to provide a common potential point different from the ground potential.

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Kobe, Japan

Yuma Kawai