Voice activity detector based upon a detected change in energy levels between sub-frames and a method of operation
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United States of America Patent
Stats
-
Dec 9, 2014
Issued Date -
N/A
app pub date -
Jul 8, 2008
filing date -
Jul 10, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A voice activity detector (100) includes a frame divider (201) for dividing frames of an input signal into consecutive sub-frames, an energy level estimator (202) for estimating an energy level of the input signal in each of the consecutive sub-frames, a noise eliminator (203) for analyzing the estimated energy levels of sets of the sub-frames to detect and eliminate from enhancement noise sub-frames and to indicate remaining sub-frames as speech sub-frames, and an energy level enhancer (205) for enhancing the estimated energy level for each of the indicated speech sub-frames by an amount which relates to a detected change of the estimated energy level for a current speech sub-frame relative to that for neighboring speech sub-frames.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2008 Application Filing Year
- G10L Class
- 1058 Applications Filed
- 794 Patents Issued To-Date
- 75.05 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 5 Citation Count
- G10L Class
- 4.63 % this patent is cited more than
- 11 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 | Jun 9, 2026 |
