Apparatus, method, and computer program product for separating time series signals
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 24, 2016
Grant Date -
Feb 27, 2014
app pub date -
Aug 15, 2013
filing date -
Aug 23, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
According to an embodiment, a signal processing apparatus includes an estimation unit and an updating unit. The estimation unit is configured to estimate an auxiliary variable of a target section including first and second sections of input signals by using an approximating auxiliary function for approximating an auxiliary function having an auxiliary variable as an argument. The auxiliary function is determined according to an objective function that outputs a function value that is smaller as a statistical independence of separated signals into which input signals in time-series are separated by a demixing matrix is higher. The estimation unit is configured to estimate a value of the auxiliary variable of the target section based on the estimated auxiliary variable. The updating unit is configured to update the demixing matrix such that a function value of the approximating auxiliary function is minimized.
First Claim
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Family
International Classification(s)
- 2013 Application Filing Year
- G10L Class
- 1745 Applications Filed
- 1596 Patents Issued To-Date
- 91.47 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- G10L Class
- 11.65 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 24, 2027 |
