Nippon Telegraph and Telephone had five patents in quantum computing during Q4 2023. The patent filed by Nippon Telegraph and Telephone Corp in Q4 2023 describes an optical computer with high scalability and noise reduction capabilities. It includes an input layer, reservoir layer with degenerate optical parametric oscillator pulses, and an output layer for processing signals efficiently. GlobalData’s report on Nippon Telegraph and Telephone gives a 360-degreee view of the company including its patenting strategy. Buy the report here.
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Nippon Telegraph and Telephone grant share with quantum computing as a theme is 20% in Q4 2023. Grant share is based on the ratio of number of grants to total number of patents.
Recent Patents
Application: Optical computing machine (Patent ID: US20230400876A1)
The patent filed by Nippon Telegraph and Telephone Corp. describes an optical computer designed for high scalability and noise reduction. The computer includes an input layer, a reservoir layer utilizing degenerate optical parametric oscillator (DOPO) pulses generated by an optical phase-sensitive amplifier (PSA) as nodes, and an output layer. The connection between nodes is determined by a measurement feedback method, and the output signal is based on the responses of the DOPO pulses to the input signal.
The optical computer further involves applying weights to the DOPO pulses for the output signal, adjusting weights through a learning algorithm based on the output, and determining the connection relationship between nodes as a random value. Additionally, the amplitudes of pump light pulses are independently determined, and the electric field amplitudes of the DOPO pulses are calculated using specific equations. This patent aims to provide a novel optical computing system with improved scalability and noise reduction capabilities through the unique configuration and operation of its layers and components.
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