WO2009092837A4 - Method and apparatus for digital filtering of signals - Google Patents

Method and apparatus for digital filtering of signals Download PDF

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Publication number
WO2009092837A4
WO2009092837A4 PCT/ES2009/000027 ES2009000027W WO2009092837A4 WO 2009092837 A4 WO2009092837 A4 WO 2009092837A4 ES 2009000027 W ES2009000027 W ES 2009000027W WO 2009092837 A4 WO2009092837 A4 WO 2009092837A4
Authority
WO
WIPO (PCT)
Prior art keywords
filtering
digital signal
digital
signal filtering
input
Prior art date
Application number
PCT/ES2009/000027
Other languages
Spanish (es)
French (fr)
Other versions
WO2009092837A1 (en
Inventor
José Javier LOPEZ MONFORT
German Ramos Peinado
Original Assignee
Universidad Politecnica De Valencia
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Universidad Politecnica De Valencia filed Critical Universidad Politecnica De Valencia
Publication of WO2009092837A1 publication Critical patent/WO2009092837A1/en
Publication of WO2009092837A4 publication Critical patent/WO2009092837A4/en

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/06—Non-recursive filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0261—Non linear filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0283—Filters characterised by the filter structure
    • H03H17/0286—Combinations of filter structures

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Nonlinear Science (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Filters That Use Time-Delay Elements (AREA)

Abstract

Method and apparatus for digital filtering of signals that combines linear digital filters with warped linear filters.

Claims

REIVINDICACIONES MODIFICADAS recibidas por Ia oficina Internacional el 17 agosto 2009 (17.08.09) MODIFIED CLAIMS received by the International Office on August 17, 2009 (08/17/09)
1. Procedimiento de filtrado digital de señales caracterizado porque comprende aplicar a una señal de respuesta de un sistema una combinación en cascada o en paralelo de un filtrado digital lineal con, al menos, un filtrado digital deformado para obtener una respuesta objetivo, y donde ta combinación de filtros no incluye ningún retardo.A digital signal filtering method characterized in that it comprises applying to a response signal of a system a cascade or parallel combination of linear digital filtering with at least one deformed digital filtering to obtain an objective response, and where Filter combination does not include any delay.
2. Procedimiento de filtrado digital de señates de acuerdo con ta reivindicación 1 , caracterizado porque el sistema es un sistema acústico.2. Digital signal filtering method according to claim 1, characterized in that the system is an acoustic system.
3. Procedimiento de filtrado digital de señales de acuerdo con la reivindicación 2, caracterizado porque el sistema acústico es un altavoz.Method for digital signal filtering according to claim 2, characterized in that the acoustic system is a loudspeaker.
4, Procedimiento de filtrado digital de señales de acuerdo con Ia reivindicación 2, caracterizado porque el sistema acústico es un audífono.4, Digital signal filtering method according to claim 2, characterized in that the acoustic system is a hearing aid.
5. Programa de ordenador que comprende instrucciones de programa que provocan que un ordenador lleve a cabo las operaciones del procedimiento de acuerdo con cualquiera de las reivindicaciones anteriores.5. A computer program comprising program instructions that cause a computer to perform the operations of the method according to any of the preceding claims.
6. Programa de ordenador de acuerdo con la reivindicación 5, caracterizado porque está almacenado en unos medios de almacenamiento.6. Computer program according to claim 5, characterized in that it is stored in storage means.
7. Programa de ordenador de acuerdo con Ia reivindicación 5, caracterizado porque se transmite a través de una señal portadora.7. Computer program according to claim 5, characterized in that it is transmitted through a carrier signal.
8. Aparato (1) para el filtrado digital de señales, caracterizado porque comprende:8. Apparatus (1) for digital signal filtering, characterized in that it comprises:
un medio de entrada (11), que transmite una señal de entrada a un medio de procesamiento (6); un medio de procesamiento {6), que recibe Ia señal cíe entrada del medio de entrada (11) y Ie aplica un filtrado digital que combina un filtrado lineal con, a! menos, un filtrado deformado, obteniendo una señal objetivoan input means (11), which transmits an input signal to a processing means (6); a processing means {6), which receives the input signal from the input means (11) and applies a digital filtering that combines a linear filtering with, a! less, a deformed filtering, obtaining a target signal
9. Aparato (1) para el filtrado digital de señales de acuerdo con Ia reivindicación 8, caracterizado porque el medio de procesamiento (6) se elige de entre Ia siguiente lista: un ordenador, un DSP, una FPGA, un ASIC, un micro procesador y un microcontrolador.9. Apparatus (1) for digital signal filtering according to claim 8, characterized in that the processing means (6) is chosen from the following list: a computer, a DSP, an FPGA, an ASIC, a micro processor and a microcontroller.
10, Aparato (1 ) para el filtrado digitaí de señales de acuerdo con cualquiera de las reivindicaciones 8 ó 9, caracterizado porque comprende además un medio de salida (12), que transmite al exterior Ia señal objetivo desde eí medio de procesamiento (β).10, Apparatus (1) for digital signal filtering according to any of claims 8 or 9, characterized in that it also comprises an output means (12), which transmits the target signal to the outside from the processing means (β) .
11 Aparato (1) para et filtrado digital de señales de acuerdo con cualquiera de las reivindicaciones 8-10, caracterizado porque los medios de entrada y salida (11, 12) comprenden, respectivamente, medios de conversión analógico-digital (4) y digitai-analógico (5) y/o un receptor (2) y un transmisor (3) de datos digitales.Apparatus (1) for digital signal filtering according to any of claims 8-10, characterized in that the input and output means (11, 12) comprise, respectively, analog-digital conversion means (4) and digitai -analogical (5) and / or a receiver (2) and a transmitter (3) of digital data.
12. Aparato (1) para el filtrado digitaí de señaíes de acuerdo con cualquiera de las reivindicaciones 8-11 , caracterizado porque comprende además un medio de comunicaciones (8).12. Apparatus (1) for digital filtering of signals according to any of claims 8-11, characterized in that it also comprises a communications means (8).
13. Aparato (1) para el filtrado digital de señales de acuerdo con cualquiera de las reivindicaciones 8-12, caracterizado porque comprende además un medio de interfaz (10) con ios usuarios.Apparatus (1) for digital signal filtering according to any of claims 8-12, characterized in that it also comprises an interface means (10) with the users.
14. Aparato (1) para el filtrado digital de señaíes de acuerdo con cualquiera de las reivindicaciones 8-13, caracterizado porque además comprende un medio de almacenamiento (7). 14. Apparatus (1) for digital signal filtering according to any of claims 8-13, characterized in that it also comprises a storage means (7).
15. Aparato (1) para el filtrado digital de señales de acuerdo con cualquiera de ías reivindicaciones 8-14, caracterizado porque además comprende un microcontrolador (9). Apparatus (1) for digital signal filtering according to any of claims 8-14, characterized in that it further comprises a microcontroller (9).
PCT/ES2009/000027 2008-01-23 2009-01-21 Method and apparatus for digital filtering of signals WO2009092837A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200800229 2008-01-23
ES200800229A ES2341200B2 (en) 2008-01-23 2008-01-23 PROCEDURE AND APPLIANCE FOR DIGITAL SIGNAL FILTERING.

Publications (2)

Publication Number Publication Date
WO2009092837A1 WO2009092837A1 (en) 2009-07-30
WO2009092837A4 true WO2009092837A4 (en) 2009-10-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2009/000027 WO2009092837A1 (en) 2008-01-23 2009-01-21 Method and apparatus for digital filtering of signals

Country Status (2)

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ES (1) ES2341200B2 (en)
WO (1) WO2009092837A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800003311A1 (en) * 2018-03-06 2019-09-06 Outline S R L METHOD AND DEVICE FOR ADJUSTING THE FREQUENCY RESPONSE OF A DIGITAL FILTER
IT201800004143A1 (en) 2018-03-30 2019-09-30 Outline S R L DEVICE FOR MANAGING DIGITAL AUDIO SIGNALS

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843583A (en) * 1985-10-15 1989-06-27 Rockwell International Corporation Nonlinear adaptive filter
US6664460B1 (en) * 2001-01-05 2003-12-16 Harman International Industries, Incorporated System for customizing musical effects using digital signal processing techniques
WO2004079901A2 (en) * 2003-03-04 2004-09-16 Oticon A/S Digital filter and listening device

Also Published As

Publication number Publication date
WO2009092837A1 (en) 2009-07-30
ES2341200B2 (en) 2011-06-01
ES2341200A1 (en) 2010-06-16

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