Abstract
Speech is coded using an orthogonal search by calculating a search reference value. An adaptive codevector representing a pitch component is generated. A random codevector representing a random component is also generated. The orthogonal search further includes generating a synthetic speech signal by a synthesis filter being excited by the adaptive codevector and the random codevector. A distortion between the input speech signal and the synthetic speech signal is calculated. One random codevector that minimizes the distortion is selected.
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | |||||||
| US6415254B1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 | Yes | Basis Patent | ||||
| US6415254B1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| EP1746582B1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| EP1746582B1 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
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| EP1734512A2 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| EP1734512A3 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| EP1734512A3 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
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| EP1734512B1 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
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| EP1752968A3 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| EP1752968B1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| EP1755227A3 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| EP1760695B1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| EP1760695B1 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
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| EP2224597A1 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| EP2224597B1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| EP2224597B1 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| HK1025417A1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| HK1025417A1 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| HK1090161A1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| HK1090161A1 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| HK1090465A1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| HK1097637A1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| HK1097637A1 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| HK1099138A1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| HK1099138A1 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| HK1099117A1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| HK1099117A1 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| HK1103843A1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| HK1103843A1 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| KR20050090026A | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| KR20050090026A | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| KR100886062B1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| KR100886062B1 | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| KR20070087151A | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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No | Family Member | |||
| KR20070087151A | 5G,4G,3G,2G | 08/12/2005 | ISLD-200601-003 | PANASONIC CORP | No | Family Member | ||||
| KR100938018B1 | 5G,4G,3G,2G | 14/10/2020 | ISLD-202010-001 | GODO KAISHA IP BRIDGE 1 |
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Information | |||||||||
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Technologies
Signal Processing
Product
Not Available
Use Cases
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Services
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Claim
1. An orthogonal search method for use in a speech coding, by calculating a search reference value, the orthogonal search method comprising:
generating an adaptive codevector representing a pitch component;
generating a random codevector representing a random component;
generating a synthetic speech signal by a synthesis filter being excited by the adaptive codevector and the random codevector;
calculating a distortion between the input speech signal and the synthetic speech signal; and
selecting one random codevector that minimizes the distortion,
wherein the search reference value is calculated by:
computing the power, α=ptHtHp, of a signal, Hp, obtained by synthesis in the synthesis filter using the adaptive codevector;
computing an auto-correlation matrix, A=HtH, of filter coefficients of the synthesis filter;
calculating a matrix, M, by providing a time reverse synthesis, rt=ptHtH, to the signal, Hp, obtained by syntheses in the synthesis filter using the adaptive codevector and by taking an outer product, M=rrt, of the resultant signal by the time reverse synthesis;
calculating a value, 1/D=1/{ct(αAâx88x92M)c}, by using the power α, the auto-correlation matrix A, the matrix M and the random codevector c; and
calculating the search reference value using the value 1/D,
where
p is the adaptive codevector,
c is the random codevector,
H is the synthesis filter coefficient matrix, and
t denotes transpose.', 'generating an adaptive codevector representing a pitch component;', 'generating a random codevector representing a random component;', 'generating a synthetic speech signal by a synthesis filter being excited by the adaptive codevector and the random codevector;', 'calculating a distortion between the input speech signal and the synthetic speech signal; and', 'selecting one random codevector that minimizes the distortion,', 'wherein the search reference value is calculated by:
computing the power, α=ptHtHp, of a signal, Hp, obtained by synthesis in the synthesis filter using the adaptive codevector;
computing an auto-correlation matrix, A=HtH, of filter coefficients of the synthesis filter;
calculating a matrix, M, by providing a time reverse synthesis, rt=ptHtH, to the signal, Hp, obtained by syntheses in the synthesis filter using the adaptive codevector and by taking an outer product, M=rrt, of the resultant signal by the time reverse synthesis;
calculating a value, 1/D=1/{ct(αAâx88x92M)c}, by using the power α, the auto-correlation matrix A, the matrix M and the random codevector c; and
calculating the search reference value using the value 1/D,', 'computing the power, α=ptHtHp, of a signal, Hp, obtained by synthesis in the synthesis filter using the adaptive codevector;', 'computing an auto-correlation matrix, A=HtH, of filter coefficients of the synthesis filter;', 'calculating a matrix, M, by providing a time reverse synthesis, rt=ptHtH, to the signal, Hp, obtained by syntheses in the synthesis filter using the adaptive codevector and by taking an outer product, M=rrt, of the resultant signal by the time reverse synthesis;', 'calculating a value, 1/D=1/{ct(αAâx88x92M)c}, by using the power α, the auto-correlation matrix A, the matrix M and the random codevector c; and', 'calculating the search reference value using the value 1/D,', 'where', 'p is the adaptive codevector,', 'c is the random codevector,', 'H is the synthesis filter coefficient matrix, and', 't denotes transpose.
2. A speech coder using an orthogonal search, by calculating a search reference value, the speech coder comprising:
an adaptive codebook that generates an adaptive codevector representing a pitch component;
a random codebook that generates a random codevector representing a random component;
a synthesis filter that generates a synthetic speech signal by the synthesis filter being excited by the adaptive codevector and the random codevector; and
a distortion calculator that calculates a distortion between the input speech signal and the synthetic speech signal, and selects one random codevector that minimizes the distortion,
wherein the distortion calculator that calculates the search reference value comprises:
a system that computes the power, α=ptHtHp, of a signal, Hp, obtained by synthesis in the synthesis filter using the adaptive codevector, and computes an auto-correlation matrix, A=HtH, of filter coefficients of the synthesis filter;
a system that calculates a matrix, M, by providing a time reverse synthesis, rt=ptHtH, to the signal, Hp, obtained by syntheses in the synthesis filter using the adaptive codevector and taking an outer product, M=rrt, of the resultant signal by the time reverse synthesis; and
a system that calculates a value, 1/D=1/{ct(αAâx88x92M)c}, by using the power α, the auto-correlation matrix A, the matrix M and the random codevector c;
wherein the distortion calculator calculates the search reference value using the value 1/D,
where
p is the adaptive codevector,
c is the random codevector,
H is the synthesis filter coefficient matrix, and
t denotes transpose.', 'an adaptive codebook that generates an adaptive codevector representing a pitch component;', 'a random codebook that generates a random codevector representing a random component;', 'a synthesis filter that generates a synthetic speech signal by the synthesis filter being excited by the adaptive codevector and the random codevector; and', 'a distortion calculator that calculates a distortion between the input speech signal and the synthetic speech signal, and selects one random codevector that minimizes the distortion,', 'wherein the distortion calculator that calculates the search reference value comprises:
a system that computes the power, α=ptHtHp, of a signal, Hp, obtained by synthesis in the synthesis filter using the adaptive codevector, and computes an auto-correlation matrix, A=HtH, of filter coefficients of the synthesis filter;
a system that calculates a matrix, M, by providing a time reverse synthesis, rt=ptHtH, to the signal, Hp, obtained by syntheses in the synthesis filter using the adaptive codevector and taking an outer product, M=rrt, of the resultant signal by the time reverse synthesis; and
a system that calculates a value, 1/D=1/{ct(αAâx88x92M)c}, by using the power α, the auto-correlation matrix A, the matrix M and the random codevector c;
wherein the distortion calculator calculates the search reference value using the value 1/D,', 'a system that computes the power, α=ptHtHp, of a signal, Hp, obtained by synthesis in the synthesis filter using the adaptive codevector, and computes an auto-correlation matrix, A=HtH, of filter coefficients of the synthesis filter;', 'a system that calculates a matrix, M, by providing a time reverse synthesis, rt=ptHtH, to the signal, Hp, obtained by syntheses in the synthesis filter using the adaptive codevector and taking an outer product, M=rrt, of the resultant signal by the time reverse synthesis; and', 'a system that calculates a value, 1/D=1/{ct(αAâx88x92M)c}, by using the power α, the auto-correlation matrix A, the matrix M and the random codevector c;', 'wherein the distortion calculator calculates the search reference value using the value 1/D,', 'where', 'p is the adaptive codevector,', 'c is the random codevector,', 'H is the synthesis filter coefficient matrix, and', 't denotes transpose.']
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