FI990865A - Signal processor for noise suppression system - has canceller for subtracting protected noise from frequency analyser signal - Google Patents
Signal processor for noise suppression system - has canceller for subtracting protected noise from frequency analyser signal Download PDFInfo
- Publication number
- FI990865A FI990865A FI990865A FI990865A FI990865A FI 990865 A FI990865 A FI 990865A FI 990865 A FI990865 A FI 990865A FI 990865 A FI990865 A FI 990865A FI 990865 A FI990865 A FI 990865A
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- Prior art keywords
- signal
- noise
- frequency
- canceller
- subtracting
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Abstract
The processor includes frequency analyser for inputting a signal containing a noise to perform frequency analysis, a signal detector and noise predictor for inputting the frequency-analysed signal to predict the noise of the signal portion on the basis of a past noise information. A canceller is provided for subtracting the predicted noise from the frequency-analysed signal, and signal compositor for performing signal composition on the noise-cancelled signal. The frequency-analysed output of the frequency analyser and a cancel coefficient signal are provided to cancel the noise component considering the cancel coefficient from the frequency-analysed output. The signal compositor composes the cancelled-output of the canceller.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI990865A FI118022B (en) | 1990-01-18 | 1999-04-16 | Signal processor for noise suppression system - has canceller for subtracting protected noise from frequency analyser signal |
Applications Claiming Priority (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008593A JPH03212697A (en) | 1990-01-18 | 1990-01-18 | Signal processor |
JP859390 | 1990-01-18 | ||
JP859490 | 1990-01-18 | ||
JP2008594A JP2830276B2 (en) | 1990-01-18 | 1990-01-18 | Signal processing device |
JP3320990 | 1990-02-13 | ||
JP3321290 | 1990-02-13 | ||
JP3321290 | 1990-02-13 | ||
JP2033209A JP2836889B2 (en) | 1990-02-13 | 1990-02-13 | Signal processing device |
FI910292A FI104663B (en) | 1990-01-18 | 1991-01-18 | signal Processing device |
FI910292 | 1991-01-18 | ||
FI990865A FI118022B (en) | 1990-01-18 | 1999-04-16 | Signal processor for noise suppression system - has canceller for subtracting protected noise from frequency analyser signal |
FI990865 | 1999-04-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI990865A true FI990865A (en) | 1999-04-16 |
FI990865A0 FI990865A0 (en) | 1999-04-16 |
FI118022B FI118022B (en) | 2007-05-31 |
Family
ID=27514634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI990865A FI118022B (en) | 1990-01-18 | 1999-04-16 | Signal processor for noise suppression system - has canceller for subtracting protected noise from frequency analyser signal |
Country Status (1)
Country | Link |
---|---|
FI (1) | FI118022B (en) |
-
1999
- 1999-04-16 FI FI990865A patent/FI118022B/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
FI118022B (en) | 2007-05-31 |
FI990865A0 (en) | 1999-04-16 |
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