US 12,244,775 B2
Sound diagnosis system, information processing apparatus, and computer-readable storage medium
Yohei Suzuki, Shizuoka (JP); Seiji Hara, Shizuoka (JP); and Hiroshi Hagiwara, Shizuoka (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 10, 2023, as Appl. No. 18/181,681.
Claims priority of application No. 2022-042776 (JP), filed on Mar. 17, 2022.
Prior Publication US 2023/0300258 A1, Sep. 21, 2023
Int. Cl. G03G 15/00 (2006.01); H04N 1/00 (2006.01)
CPC H04N 1/00055 (2013.01) [G03G 15/50 (2013.01); G03G 15/55 (2013.01); G03G 2215/00637 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A sound diagnosis system comprising:
a microphone configured to receive a sound wave in an apparatus including one or more actuators; and
one or more processors configured to:
process a signal indicating the sound wave in a predetermined period received by the microphone, and generate sound data indicating a sound wave level in each of a plurality of time sections and an operation status of the one or more actuators in each of the plurality of time sections, each of the plurality of time sections being a division of the predetermined period;
classify the sound data into a plurality of groups including a first group based on a difference of operation status of the one or more actuators in each of the plurality of time sections of the sound data;
generate a threshold value for each of the plurality of time sections, the threshold value being calculated using a sound wave level in each of the plurality of time sections of a plurality of first sound data classified in the first group;
calculate a comparison value for each of the plurality of time sections based on the sound wave level in each of the plurality of time sections of one or more second sound data classified in the first group; and
determine whether or not the comparison value for each of the plurality of time sections is greater than the threshold value of a corresponding time section of the first group.