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Patents Grants
last 30 patents
Information
Patent Grant
Speaker calibration method, apparatus and program
Patent number
12,192,711
Issue date
Jan 7, 2025
Nippon Telegraph and Telephone Corporation
Kazunori Kobayashi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Call environment generation method, call environment generation app...
Patent number
12,183,317
Issue date
Dec 31, 2024
Nippon Telegraph and Telephone Corporation
Kazunori Kobayashi
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Filter coefficient optimization apparatus, filter coefficient optim...
Patent number
12,120,490
Issue date
Oct 15, 2024
Nippon Telegraph and Telephone Corporation
Ryotaro Sato
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
SOUND SYSTEM
Publication number
20240236559
Publication date
Jul 11, 2024
Nippon Telegraph and Telephone Corporation
Masahiro FUKUI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CANCELLATION APPARATUS
Publication number
20240185828
Publication date
Jun 6, 2024
Nippon Telegraph and Telephone Corporation
Ryotaro SATO
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
SOUND SYSTEM
Publication number
20240137694
Publication date
Apr 25, 2024
Nippon Telegraph and Telephone Corporation
Masahiro FUKUI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SOUND SYSTEM
Publication number
20240129663
Publication date
Apr 18, 2024
Nippon Telegraph and Telephone Corporation
Masahiro FUKUI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
SOUND SYSTEM
Publication number
20240129664
Publication date
Apr 18, 2024
Nippon Telegraph and Telephone Corporation
Masahiro FUKUI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DETECTION METHOD, DETECTION APPARATUS, AND PROGRAM
Publication number
20230306260
Publication date
Sep 28, 2023
Nippon Telegraph and Telephone Corporation
Ryotaro SATO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CALL ENVIRONMENT GENERATION METHOD, CALL ENVIRONMENT GENERATION APP...
Publication number
20230230570
Publication date
Jul 20, 2023
Nippon Telegraph and Telephone Corporation
Kazunori KOBAYASHI
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Application
SPEAKER CALIBRATION METHOD, APPARATUS AND PROGRAM
Publication number
20230171555
Publication date
Jun 1, 2023
Nippon Telegraph and Telephone Corporation
Kazunori KOBAYASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
REPRODUCTION APPARATUS, METHOD AND PROGRAM FOR THE SAME
Publication number
20230108565
Publication date
Apr 6, 2023
Nippon Telegraph and Telephone Corporation
Kazunori KOBAYASHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
FILTER COEFFICIENT OPTIMIZATION APPARATUS, FILTER COEFFICIENT OPTIM...
Publication number
20230088204
Publication date
Mar 23, 2023
Nippon Telegraph and Telephone Corporation
Ryotaro SATO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
FILTER COEFFICIENT OPTIMIZATION APPARATUS, LATENT VARIABLE OPTIMIZA...
Publication number
20230083284
Publication date
Mar 16, 2023
Nippon Telegraph and Telephone Corporation
Ryotaro SATO
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
NEURAL NETWORK LEARNING APPARATUS, NEURAL NETWORK LEARNING METHOD,...
Publication number
20220327379
Publication date
Oct 13, 2022
Nippon Telegraph and Telephone Corporation
Yuma KOIZUMI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
LATENT VARIABLE OPTIMIZATION APPARATUS, FILTER COEFFICIENT OPTIMIZA...
Publication number
20220141584
Publication date
May 5, 2022
Nippon Telegraph and Telephone Corporation
Ryotaro SATO
G06 - COMPUTING CALCULATING COUNTING