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1. 发明授权

EP0574400B1 A METHOD TO REDUCE THE POWER CONSUMATION OF A DIGITAL FILTER BANK BY REDUCING THE NUMBER OF MULTIPLICATIONS 失效
标题翻译：一种用于降低数字滤波器组的功耗的乘法的减少数量
公开(公告)号：EP0574400B1
公开(公告)日：1996-11-27
申请号：EP92901314.2
申请日：1991-12-13
申请人： LUNNER, Thomas , HELLGREN, Johan
发明人： LUNNER, Thomas , HELLGREN, Johan
IPC分类号： H03H17/02
CPC分类号： H03H17/0266 , H03H17/0223
摘要： A digital filter bank for reducing power consumption by decreasing the number of multiplications carried out therein. There is particularly proposed a filter bank for use in battery-operated applications. The digital filter bank includes a zero-filled digital basic filter [H1 (z)] having a complementary output, and downstream, parallel part-filter banks [HD1, HD2]. In the present context, a zero-filled filter pertains to a filter which may be based on an LP-filter which is expanded with a number of zero-value filter coefficients between each coefficient in the original filter. The part-filter bank [HD1] connected to the normal output of the basic filter [H1 (z)] is intended to filter-out those filter-bank bands which are pass bands to the basic filter, so that only one of the filter-bank bands is found on each output signal from said one part-filter bank [HD1]. The other part-filter bank [HD2] connected to the complementary output of the basic filter [H1 (z)] is intended to filter-out those filter-bank bands which are pass bands to the complementary output of the basic filter, so that only one filter-bank band is found on each output signal from the second part-filter bank [HD2].

2. 发明公开

EP0574400A1 A METHOD TO REDUCE THE POWER CONSUMATION OF A DIGITAL FILTER BANK BY REDUCING THE NUMBER OF MULTIPLICATIONS 失效
标题翻译：一种用于降低数字滤波器组的功耗乘法的减小数目。
公开(公告)号：EP0574400A1
公开(公告)日：1993-12-22
申请号：EP92901314.0
申请日：1991-12-13
申请人： LUNNER, Thomas , HELLGREN, Johan
发明人： LUNNER, Thomas , HELLGREN, Johan
IPC分类号： H03H17
CPC分类号： H03H17/0266 , H03H17/0223
摘要： Batterie de filtres numériques dont on réduit la consommation de puissance en réduisant le nombre de multiplications qu'elle effectue. On a prévu notamment une batterie de filtres fonctionnant sur piles. La batterie de filtres numériques comprend un filtre numérique de base garni de zéros [H1 (z)] possédant une sortie complémentaire et, en aval de celui-ci, des batteries de filtres partiels parallèles [HD1, HD2]. Dans ce contexte, le filtre garni de zéros se rapporte à un filtre pouvant être fondé sur un filtre passe-bas agrandi par un certain nombre de coefficients de filtre à valeur zéro entre chaque coefficient du filtre initial. La batterie de filtres partiels [HD1] raccordée à la sortie normale du fitre de base [H1 (z)] est destinée à éliminer par filtrage les bandes de batterie de filtres qui sont des bandes passantes au filtre de base, de sorte qu'une seule des bandes de la batterie de filtres se trouve sur chaque signal en sortie de ladite batterie de filtres partiels [HD1]. L'autre batterie de filtres partiels [HD2] raccordée à la sortie complémentaire du filtre de base [H1 (z)] est destinée à éliminer par filtrage les bandes de batterie de filtres qui sont des bandes passantes à la sortie complémentaire du filtre de base, de sorte qu'une seule bande de la batterie de filtres se trouve sur chaque signal en sortie de la seconde batterie de filtres partiels [HD2].

3. 发明专利

CA2098711C METHOD TO REDUCE THE POWER CONSUMATION OF A DIGITAL FILTER BANK BY REDUCING THE NUMBER OF MULTIPLICATIONS 未知
公开(公告)号：CA2098711C
公开(公告)日：2000-11-14
申请号：CA2098711
申请日：1991-12-13
申请人： LUNNER THOMAS , HELLGREN JOHAN
发明人： LUNNER THOMAS , HELLGREN JOHAN
IPC分类号： H03H17/00 , H03H17/02 , H03H17/06
摘要： digital filter bank for reducing power consumption by decreasing the number of multiplications carried out therein. There is particularly proposed a filter bank far use in battery-operated applications. The digital filter bank includes a zero-filled digital basic filter ¢H1 (z)! having a complementary output, and downstream, parallel part-filter banks ¢H D1; H D2!. In the present context, a zero-filled filter pertains to a filter which maybe based on an LP-filter which is expanded with a number of zero-value filter coefficients between each coefficient in the original filter. The part-filter bank¢H D1! connected to the normal output of the basic filter ¢H1 (z)! is intended to filter-out those filter-bank bands which are pass bands to the basic filter, so that only one of the, filter-bank bands is found on each output signal from said one part-filter bank ¢H D1!. The other part-filter bank ¢H D2! connected to the complementary output of the basic filter ¢H1 (z)! is intended to filter-out those filter-bank bands which are pass bands to the complementary output of the basic filter, so that only one filter-bank band is found on each output signal from he second part-filter bank ¢HD2!.

4. 发明专利

DE69123365D1 未知
公开(公告)号：DE69123365D1
公开(公告)日：1997-01-09
申请号：DE69123365
申请日：1991-12-13
申请人： LUNNER THOMAS , HELLGREN JOHAN
发明人： LUNNER THOMAS , HELLGREN JOHAN
IPC分类号： H03H17/00 , H03H17/02 , H03H17/06
摘要： PCT No. PCT/SE91/00860 Sec. 371 Date Mar. 17, 1994 Sec. 102(e) Date Mar. 17, 1994 PCT Filed Dec. 13, 1991 PCT Pub. No. WO92/11696 PCT Pub. Date Jul. 9, 1992.A digital filter bank analyzer for reducing power consumption by decreasing the number of multiplications carried out therein. There is particularly provided a filter bank analyzer for use in battery-operated applications. The digital filter bank analyzer includes a zero-filled expanded digital basic filter [H1(z)] having a complementary output, and downstream, parallel part-filter banks [HD1,HD2]. In the present context, a zero-filled filter pertains to a filter which may be used on an LP-filter that which is expanded with a number of zero-filter coefficients between each coefficient in the original filter. The part-filter bank [HD1] connected to the normal output of the basic filter [H1(z)] is intended to filter-out those filter-bank bands which are pass bands to the basic filter, so that only one of the filter-bank bands is found on each output signal from said one part-filter bank [HD1]. The other part-filter bank [HD2] connected to the complementary output of the basic filter [H1(z)] is intended to filter-out those filter-bank bands which are pass bands to the complementary output of the basic filter, so that only one filter-bank band is found on each output signal from the second part-filter bank [HD2].

5. 发明专利

AT145772T 未知
公开(公告)号：AT145772T
公开(公告)日：1996-12-15
申请号：AT92901314
申请日：1991-12-13
申请人： LUNNER THOMAS , HELLGREN JOHAN
发明人： LUNNER THOMAS , HELLGREN JOHAN
IPC分类号： H03H17/00 , H03H17/02 , H03H17/06
摘要： PCT No. PCT/SE91/00860 Sec. 371 Date Mar. 17, 1994 Sec. 102(e) Date Mar. 17, 1994 PCT Filed Dec. 13, 1991 PCT Pub. No. WO92/11696 PCT Pub. Date Jul. 9, 1992.A digital filter bank analyzer for reducing power consumption by decreasing the number of multiplications carried out therein. There is particularly provided a filter bank analyzer for use in battery-operated applications. The digital filter bank analyzer includes a zero-filled expanded digital basic filter [H1(z)] having a complementary output, and downstream, parallel part-filter banks [HD1,HD2]. In the present context, a zero-filled filter pertains to a filter which may be used on an LP-filter that which is expanded with a number of zero-filter coefficients between each coefficient in the original filter. The part-filter bank [HD1] connected to the normal output of the basic filter [H1(z)] is intended to filter-out those filter-bank bands which are pass bands to the basic filter, so that only one of the filter-bank bands is found on each output signal from said one part-filter bank [HD1]. The other part-filter bank [HD2] connected to the complementary output of the basic filter [H1(z)] is intended to filter-out those filter-bank bands which are pass bands to the complementary output of the basic filter, so that only one filter-bank band is found on each output signal from the second part-filter bank [HD2].

6. 发明申请

WO2007006658A1 A SYSTEM AND METHOD FOR ELIMINATING FEEDBACK AND NOISE IN A HEARING DEVICE 审中-公开
标题翻译：用于消除听觉设备中的反馈和噪声的系统和方法
公开(公告)号：WO2007006658A1
公开(公告)日：2007-01-18
申请号：PCT/EP2006/063688
申请日：2006-06-29
申请人： OTICON A/S , LUNNER, Thomas
发明人： LUNNER, Thomas
IPC分类号： H04R25/00
CPC分类号： H04R25/453
摘要： This invention relates to a system (100) and method for synthesizing an audio input signal of a hearing device. The system (100) comprises a microphone unit (102) for converting the audio input signal to an electric signal, a filter unit (110) for removing a selected frequency band of the electric signal and pass a filtered signal, a synthesizer unit (118) for synthesizing the selected frequency band of the electric signal based on the filtered signal thereby generating a synthesized signal, a combiner unit (120) for combining the filtered signal and the synthesized signal so as to generate a combined signal, and finally an output unit (122, 124, 126) for converting the combined signal to an audio output signal.
摘要翻译：本发明涉及一种用于合成听觉装置的音频输入信号的系统（100）和方法。该系统（100）包括用于将音频输入信号转换为电信号的麦克风单元（102），用于去除电信号的所选频带并通过滤波信号的滤波器单元（110），合成器单元），用于基于经滤波的信号合成所选择的电信号频带，从而产生合成信号;组合器单元（120），用于组合滤波后的信号和合成信号，以产生组合信号;最后输出单元（122,124,126），用于将组合的信号转换成音频输出信号。

7. 发明专利

SE9101758L 未知
公开(公告)号：SE9101758L
公开(公告)日：1992-09-07
申请号：SE9101758
申请日：1991-06-10
申请人： HELLGREN JOHAN , STIG ARLINGER , LUNNER THOMAS
发明人： HELLGREN JOHAN , ARLINGER STIG , LUNNER THOMAS
IPC分类号： H04R25/00

8. 发明专利

SE467680B 未知
公开(公告)号：SE467680B
公开(公告)日：1992-08-24
申请号：SE9004055
申请日：1990-12-19
申请人： HELLGREN JOHAN , LUNNER THOMAS
发明人： HELLGREN JOHAN , LUNNER THOMAS
IPC分类号： H03H17/00 , H03H17/02 , H03H17/06
摘要： PCT No. PCT/SE91/00860 Sec. 371 Date Mar. 17, 1994 Sec. 102(e) Date Mar. 17, 1994 PCT Filed Dec. 13, 1991 PCT Pub. No. WO92/11696 PCT Pub. Date Jul. 9, 1992.A digital filter bank analyzer for reducing power consumption by decreasing the number of multiplications carried out therein. There is particularly provided a filter bank analyzer for use in battery-operated applications. The digital filter bank analyzer includes a zero-filled expanded digital basic filter [H1(z)] having a complementary output, and downstream, parallel part-filter banks [HD1,HD2]. In the present context, a zero-filled filter pertains to a filter which may be used on an LP-filter that which is expanded with a number of zero-filter coefficients between each coefficient in the original filter. The part-filter bank [HD1] connected to the normal output of the basic filter [H1(z)] is intended to filter-out those filter-bank bands which are pass bands to the basic filter, so that only one of the filter-bank bands is found on each output signal from said one part-filter bank [HD1]. The other part-filter bank [HD2] connected to the complementary output of the basic filter [H1(z)] is intended to filter-out those filter-bank bands which are pass bands to the complementary output of the basic filter, so that only one filter-bank band is found on each output signal from the second part-filter bank [HD2].

9. 发明专利

SE9004055L 未知
公开(公告)号：SE9004055L
公开(公告)日：1992-06-20
申请号：SE9004055
申请日：1990-12-19
申请人： HELLGREN JOHAN , LUNNER THOMAS
发明人： HELLGREN JOHAN , LUNNER THOMAS
IPC分类号： H03H17/00 , H03H17/02 , H03H17/06
摘要： PCT No. PCT/SE91/00860 Sec. 371 Date Mar. 17, 1994 Sec. 102(e) Date Mar. 17, 1994 PCT Filed Dec. 13, 1991 PCT Pub. No. WO92/11696 PCT Pub. Date Jul. 9, 1992.A digital filter bank analyzer for reducing power consumption by decreasing the number of multiplications carried out therein. There is particularly provided a filter bank analyzer for use in battery-operated applications. The digital filter bank analyzer includes a zero-filled expanded digital basic filter [H1(z)] having a complementary output, and downstream, parallel part-filter banks [HD1,HD2]. In the present context, a zero-filled filter pertains to a filter which may be used on an LP-filter that which is expanded with a number of zero-filter coefficients between each coefficient in the original filter. The part-filter bank [HD1] connected to the normal output of the basic filter [H1(z)] is intended to filter-out those filter-bank bands which are pass bands to the basic filter, so that only one of the filter-bank bands is found on each output signal from said one part-filter bank [HD1]. The other part-filter bank [HD2] connected to the complementary output of the basic filter [H1(z)] is intended to filter-out those filter-bank bands which are pass bands to the complementary output of the basic filter, so that only one filter-bank band is found on each output signal from the second part-filter bank [HD2].

10. 发明专利

CA2098711A1 METHOD TO REDUCE THE POWER CONSUMATION OF A DIGITAL FILTER BANK BY REDUCING THE NUMBER OF MULTIPLICATIONS 未知
公开(公告)号：CA2098711A1
公开(公告)日：1992-06-20
申请号：CA2098711
申请日：1991-12-13
申请人： LUNNER THOMAS , HELLGREN JOHAN
发明人： LUNNER THOMAS , HELLGREN JOHAN
IPC分类号： H03H17/00 , H03H17/02 , H03H17/06
摘要： PCT No. PCT/SE91/00860 Sec. 371 Date Mar. 17, 1994 Sec. 102(e) Date Mar. 17, 1994 PCT Filed Dec. 13, 1991 PCT Pub. No. WO92/11696 PCT Pub. Date Jul. 9, 1992.A digital filter bank analyzer for reducing power consumption by decreasing the number of multiplications carried out therein. There is particularly provided a filter bank analyzer for use in battery-operated applications. The digital filter bank analyzer includes a zero-filled expanded digital basic filter [H1(z)] having a complementary output, and downstream, parallel part-filter banks [HD1,HD2]. In the present context, a zero-filled filter pertains to a filter which may be used on an LP-filter that which is expanded with a number of zero-filter coefficients between each coefficient in the original filter. The part-filter bank [HD1] connected to the normal output of the basic filter [H1(z)] is intended to filter-out those filter-bank bands which are pass bands to the basic filter, so that only one of the filter-bank bands is found on each output signal from said one part-filter bank [HD1]. The other part-filter bank [HD2] connected to the complementary output of the basic filter [H1(z)] is intended to filter-out those filter-bank bands which are pass bands to the complementary output of the basic filter, so that only one filter-bank band is found on each output signal from the second part-filter bank [HD2].

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