公开(公告)号：US10863272B2

公开(公告)日：2020-12-08

申请号：US16418579

申请日：2019-05-21

申请人： NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY ,  RION Co., Ltd.

发明人： Kiyoshi Nishiyama ,  Masahiro Sunohara ,  Nobuhiko Hiruma ,  Chiho Haruta ,  Makoto Tateno

IPC分类号： H04R3/00 ,  H04R3/04 ,  G10L21/0232 ,  G10L21/0208

摘要： A system identification device for performing fast real-time identification for a system from input/output data includes a filter robust to disturbance, by setting the maximum energy gain from the disturbance to a filter error, as an evaluation criterion, smaller than a given upper limit. The filter estimates a state estimation value of a state of the system.

公开(公告)号：US10410640B2

公开(公告)日：2019-09-10

申请号：US15663019

申请日：2017-07-28

申请人： RION Co., Ltd. ,  Inter-University Research Institute Corporation Research Organization of Information and Systems

发明人： Nobutaka Ono ,  Masahiro Sunohara ,  Chiho Haruta

IPC分类号： G10L19/008 ,  G10L21/0272 ,  H03H21/00 ,  H04R3/00 ,  H04R1/40 ,  H04R25/00 ,  G01S3/808

摘要： A sound source separation apparatus includes: a separation-matrix processor that transforms a plurality of observation signals corresponding to sounds being propagated from a plurality of sound sources into a frequency-domain signal group the separation-matrix processor updating a separation matrix based on the frequency-domain signal group and transforming the updated separation matrix into time-series filter coefficients to output; a filter-coefficient transformer that partially removes non-causal components from the filter coefficients to transform the filter coefficients, and a separator that supplies the filter coefficients to a filter group, the separator generating a plurality of separation signals separated from the plurality of observation signals corresponding to the separation matrix.