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Patent Searching and Data


Title:
SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND STORAGE MEDIUM FOR STORING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2019/008625
Kind Code:
A1
Abstract:
The present invention provides a signal processing technique that allows information to be acquired about an object signal component that is modelled at low memory cost even with a large variance in object signals. A signal processing device 700 comprises: a feature extraction unit 101 that extracts, from a target signal, a feature amount representing the feature of the target signal; an analysis unit 103 that calculates a weight representing each intensity for a plurality of the object signals included in the target signal on the basis of a signal element basis that represents a plurality of types of the object signals by linear combination and the information about the linear combination; a processing unit 704 that produces the information about a target object signal that is at least one type of the object signal included in the target signal on the basis of the weight; and an output unit 106 that outputs the information about the target object signal.

Inventors:
KOMATSU TATSUYA (JP)
KONDO REISHI (JP)
Application Number:
JP2017/024330
Publication Date:
January 10, 2019
Filing Date:
July 03, 2017
Export Citation:
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Assignee:
NEC CORP (JP)
International Classes:
G10L15/02
Foreign References:
JP2012163918A2012-08-30
Other References:
NAKAJIMA, HIROAKI ET AL.: "Analysis on Degree of Freedom for Supervised NMF with All-Pole-Model-Based Basis Deformation", IEICE TECHNICAL REPORT, vol. 115, no. 359, 4 December 2015 (2015-12-04), pages 13 - 18, ISSN: 0913-5685
SAWADA, HIROSHI: "Nonnegative Matrix Factorization and Its Applications to Data/Signal Analysis", THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS, vol. 95, no. 9, 1 September 2012 (2012-09-01), pages 829 - 833, ISSN: 0913-5693
KAMEOKA, HIROKAZU: "Non-negative Matrix Factorization", JOURNAL OF THE SOCIETY OF INSTRUMENT AND CONTROL ENGINEERS, vol. 51, no. 9, 10 September 2012 (2012-09-10), pages 835 - 844, ISSN: 0453-4662
Attorney, Agent or Firm:
SHIMOSAKA Naoki (JP)
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