RU97114804A - METHOD AND DEVICE FOR CARRYING OUT SEARCH IN THE CODE DIRECTORY FOR CODING OF THE AUDIO SIGNAL AND CELLULAR COMMUNICATION SYSTEM - Google Patents
METHOD AND DEVICE FOR CARRYING OUT SEARCH IN THE CODE DIRECTORY FOR CODING OF THE AUDIO SIGNAL AND CELLULAR COMMUNICATION SYSTEMInfo
- Publication number
- RU97114804A RU97114804A RU97114804/09A RU97114804A RU97114804A RU 97114804 A RU97114804 A RU 97114804A RU 97114804/09 A RU97114804/09 A RU 97114804/09A RU 97114804 A RU97114804 A RU 97114804A RU 97114804 A RU97114804 A RU 97114804A
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- Prior art keywords
- amplitude
- positions
- amplitudes
- pulses
- combinations
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- 230000005236 sound signal Effects 0.000 title claims 12
- 230000001413 cellular Effects 0.000 title claims 6
- 230000000875 corresponding Effects 0.000 claims 4
- 230000000694 effects Effects 0.000 claims 3
- 238000010606 normalization Methods 0.000 claims 3
- 230000001702 transmitter Effects 0.000 claims 1
Claims (27)
с остаточным сигналом R' с удаленным основным тоном в нормированном виде
для получения вектора В оценки амплитуды в виде
где β - фиксированная константа.4. The method according to claim 3, characterized in that the step of calculating the amplitude estimation vector B includes adding the inverse-filtered vector D in a normalized form
with a residual signal R 'with the removed pitch in normalized form
to obtain the vector B estimates of the amplitude in the form
where β is a fixed constant.
где знаменатель
является коэффициентом нормировки, представляющим максимальную амплитуду импульсов ненулевой амплитуды.6. The method according to claim 3, characterized in that for each of the mentioned positions p, the quantization step includes quantizing the estimate B p normalized by the maximum amplitude of the vector B using the following expression:
where is the denominator
is the normalization coefficient representing the maximum amplitude of the pulses of nonzero amplitude.
U'(p1,p1)
+ U'(p2,p2) + 2U'(p1,p2)
+ U'(p3,p3) + 2U'(p1,p3) + 2U'(p2,p3)
... ... .... ...8. The method according to claim 3, characterized in that each of the mentioned combinations of amplitudes and positions of the pulses contains the number N of pulses of nonzero amplitude, and the search step includes maximizing a given fraction, the denominator which is calculated by N nested cycles in accordance with the following relation:
U '(p 1 , p 1 )
+ U '(p 2 , p 2 ) + 2U' (p 1 , p 2 )
+ U '(p 3 , p 3 ) + 2U' (p 1 , p 3 ) + 2U '(p 2 , p 3 )
... ... .... ...
где вычисление для каждого цикла записано в отдельную строку от крайнего внешнего цикла до крайнего внутреннего цикла из N вложенных циклов, где рn - позиция n-го импульса ненулевой амплитуды комбинации, и где U'(px,py)- функция, зависящая от амплитуды Spx, предварительно присвоенной позиции рx из числа позиций р, и амплитуды Spy, предварительно присвоенной позиции рy из числа позиций р.+ U '(p N , p N ) + 2U' (p 1 , p N ) + 2U '(p 2 , p N ) + ... + 2U' (p N-1 , p N ),
where the calculation for each cycle is written in a separate line from the outermost loop to the outermost loop of N nested cycles, where p n is the position of the nth pulse of nonzero amplitude of the combination, and where U '(p x , p y ) is a function that depends from the amplitude S px previously assigned to the position p x from the number of positions p, and the amplitude S py previously assigned to the position p y from the number of positions p.
где Spn - амплитуда, предварительно присвоенная позиции рn, Dpn-рn-ая составляющая целевого вектора D, ТD - пороговое значение, соответствующее обратно отфильтрованному целевому вектору D.9. The method according to p. 8, characterized in that the step of maximizing said predetermined fraction includes skipping at least the last inner loop of N nested cycles whenever the following inequality holds:
where S pn is the amplitude previously assigned to the position p n , D pn is the p n -th component of the target vector D, T D is the threshold value corresponding to the back-filtered target vector D.
с остаточным сигналом R' с удаленным основным тоном в нормированном виде
для получения вектора В оценки амплитуды в виде
где β - фиксированная константа.13. The device according to p. 12, characterized in that the said means for calculating the amplitude estimation vector B comprises a means for adding the back-filtered target vector D in a normalized form
with a residual signal R 'with the removed pitch in normalized form
to obtain the vector B estimates of the amplitude in the form
where β is a fixed constant.
где знаменатель
является коэффициентом нормировки, представляющим максимальную амплитуду импульсов ненулевой амплитуды.15. The device according to p. 12, characterized in that the said quantization means comprises a quantization means, for each of the mentioned positions p, the estimate B p normalized by the maximum values of the amplitude of the vector B using the following expression
where is the denominator
is the normalization coefficient representing the maximum amplitude of the pulses of nonzero amplitude.
U'(p1,p1)
+ U'(p2,p2) + 2U'(p1,p2)
+ U'(p3,p3) + 2U'(p1,p3) + 2U'(p2,p3)
.... .... .... ....17. The device according to p. 12, characterized in that each of the mentioned combinations of amplitudes and positions of the pulses contains the number N of pulses of nonzero amplitude, and the search tool contains means for maximizing a given fraction having a denominator and means for computing said denominator by N nested loops in accordance with the following relationship:
U '(p 1 , p 1 )
+ U '(p 2 , p 2 ) + 2U' (p 1 , p 2 )
+ U '(p 3 , p 3 ) + 2U' (p 1 , p 3 ) + 2U '(p 2 , p 3 )
.... .... .... ....
где вычисление в каждом цикле записано в отдельную строку от крайнего внешнего цикла до крайнего внутреннего цикла из N вложенных циклов, где рn - позиция n-го импульса ненулевой амплитуды комбинации, и где U'(px, py)-функция, зависящая от амплитуды Spx, предварительно присвоенной позиции рx из числа позиций р, и амплитуды Spy, предварительно присвоенной позиции рy из числа позиций р.+ U '(p N , p N ) + 2U' (p 1 , p N ) + 2U '(p 2 , p N ) + .... + 2U' (p N-1 , p N ),
where the calculation in each cycle is written in a separate line from the outermost loop to the outermost loop of N nested cycles, where p n is the position of the nth pulse of nonzero amplitude of the combination, and where U '(p x , p y ) is a function that depends from the amplitude Sp x previously assigned to the position p x from the number of positions p, and the amplitude Sp y previously assigned to the position p y from the number of positions p.
где Spn - амплитуда, предварительно присвоенная позиции рn, Dpn - рn-ая составляющая целевого вектора D, а TD - пороговое значение, относящееся к обратно отфильтрованному целевому вектору D.18. The device according to 17, characterized in that the said means of calculating the denominator contains a means of skipping at least the outermost loop of N nested loops whenever the following inequality holds:
where Sp n is the amplitude previously assigned to the position p n , D pn is the p n- th component of the target vector D, and T D is the threshold value related to the back-filtered target vector D.
с остаточным сигналом R' с удаленным основным тоном в нормированном виде
для получения вектора В оценки амплитуды в виде
где β - фиксированная константа.22. The system according to item 21, wherein said means for calculating the amplitude estimation vector B comprises means for adding the back-filtered target vector D in a normalized form
with a residual signal R 'with the removed pitch in normalized form
to obtain the vector B estimates of the amplitude in the form
where β is a fixed constant.
где знаменатель
является коэффициентом нормировки, представляющим максимальную амплитуду импульсов ненулевой амплитуды.24. The system of claim 23, wherein said quantization means comprises a quantization means, for each of said positions p, the estimate B p normalized by the maximum amplitude of the vector B using the following expression
where is the denominator
is the normalization coefficient representing the maximum amplitude of the pulses of nonzero amplitude.
U'(р1,р1)
+ U'(p2,p2) + 2U'(p1,p2)
+ U'(р3,p3) + 2 U'(p1,p3) + 2U'(p2,p3)
... ... ... ...26. The system according to item 22, wherein each of the mentioned combinations of amplitudes and positions of the pulses contains the number N of pulses of nonzero amplitude, while the search tool contains means for maximizing a given fraction having a denominator and means for computing said denominator by N nested loops in accordance with the following relationship:
U '(p 1 , p 1 )
+ U '(p 2 , p 2 ) + 2U' (p 1 , p 2 )
+ U '(p 3 , p 3 ) + 2 U' (p 1 , p 3 ) + 2U '(p 2 , p 3 )
... ... ... ...
где вычисление в каждом цикле записано в отдельную строку от крайнего внешнего цикла до крайнего внутреннего цикла из N вложенных циклов, где рn - позиция n-го импульса ненулевой амплитуды комбинации, и где U'(px,py) - функция, зависящая от амплитуды Spx, предварительно присвоенной позиции рx из числа позиций р, и амплитуды Spy, предварительно присвоенной позиции рy из числа позиций р.+ U '(p N , p N ) + 2U' (p 1 , p N ) + 2U '(p 2 , p N ) + ... + 2U' (p N-1 , p N ),
where the calculation in each cycle is written in a separate line from the outermost loop to the outermost loop of N nested loops, where p n is the position of the nth pulse of non-zero amplitude of the combination, and where U '(p x , p y ) is a function that depends from the amplitude S px previously assigned to the position p x from the number of positions p, and the amplitude S py previously assigned to the position p y from the number of positions p.
где Spn -амплитуда, предварительно присвоенная позиции рn, Dpn - рn-ая составляющая целевого вектора D, а ТD - пороговое значение, относящееся к обратно отфильтрованному целевому вектору D.27. The system of claim 26, wherein said denominator calculation means contains a means of skipping at least the outermost loop of N nested loops whenever the following inequality holds:
where S pn is the amplitude previously assigned to the position p n , D pn is the p nth component of the target vector D, and T D is the threshold value related to the inverse filtered target vector D.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38396895A | 1995-02-06 | 1995-02-06 | |
US08/383,968 | 1995-02-06 | ||
US08/508,801 US5754976A (en) | 1990-02-23 | 1995-07-28 | Algebraic codebook with signal-selected pulse amplitude/position combinations for fast coding of speech |
US08/508,801 | 1995-07-28 | ||
PCT/CA1996/000069 WO1996024925A1 (en) | 1995-02-06 | 1996-02-02 | Algebraic codebook with signal-selected pulse amplitudes for fast coding of speech |
Publications (2)
Publication Number | Publication Date |
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RU97114804A true RU97114804A (en) | 1999-08-20 |
RU2142166C1 RU2142166C1 (en) | 1999-11-27 |
Family
ID=27010408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU97114804A RU2142166C1 (en) | 1995-02-06 | 1996-02-02 | Method and device for searching code directory to encode voice signal, and cellular communication system |
Country Status (26)
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US (1) | US5754976A (en) |
EP (2) | EP0808496B1 (en) |
JP (2) | JP3430175B2 (en) |
KR (2) | KR100388751B1 (en) |
CN (2) | CN1198262C (en) |
AR (1) | AR000871A1 (en) |
AT (2) | ATE230888T1 (en) |
AU (1) | AU708392C (en) |
BR (1) | BR9607026A (en) |
CA (1) | CA2210765C (en) |
DE (1) | DE19604273C5 (en) |
DK (2) | DK1225568T3 (en) |
ES (1) | ES2112807B1 (en) |
FI (2) | FI117994B (en) |
FR (1) | FR2730336B1 (en) |
GB (1) | GB2297671B (en) |
HK (2) | HK1002492A1 (en) |
IN (1) | IN187453B (en) |
IT (1) | IT1305724B1 (en) |
MX (1) | MX9705997A (en) |
MY (2) | MY130529A (en) |
NO (1) | NO318595B1 (en) |
PT (1) | PT1225568E (en) |
RU (1) | RU2142166C1 (en) |
SE (1) | SE520553C2 (en) |
WO (1) | WO1996024925A1 (en) |
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1995
- 1995-07-28 US US08/508,801 patent/US5754976A/en not_active Expired - Lifetime
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1996
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- 1996-02-02 DK DK02075797T patent/DK1225568T3/en active
- 1996-02-02 IT IT1996UD000012A patent/IT1305724B1/en active
- 1996-02-02 AU AU44796/96A patent/AU708392C/en not_active Expired
- 1996-02-02 AT AT96900816T patent/ATE230888T1/en active
- 1996-02-02 WO PCT/CA1996/000069 patent/WO1996024925A1/en active IP Right Grant
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- 1996-02-02 RU RU97114804A patent/RU2142166C1/en active
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