MX9707599A - Filtro digital eficiente y metodo que utiliza la precombinacion de coeficientes. - Google Patents

Filtro digital eficiente y metodo que utiliza la precombinacion de coeficientes.

Info

Publication number
MX9707599A
MX9707599A MX9707599A MX9707599A MX9707599A MX 9707599 A MX9707599 A MX 9707599A MX 9707599 A MX9707599 A MX 9707599A MX 9707599 A MX9707599 A MX 9707599A MX 9707599 A MX9707599 A MX 9707599A
Authority
MX
Mexico
Prior art keywords
digital filter
coefficients
precombining
precombined
coefficient
Prior art date
Application number
MX9707599A
Other languages
English (en)
Other versions
MXPA97007599A (es
Inventor
Christopher P Larosa
Tracie A Schirtzinger
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of MXPA97007599A publication Critical patent/MXPA97007599A/es
Publication of MX9707599A publication Critical patent/MX9707599A/es

Links

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
    • H03H17/0223—Computation saving measures; Accelerating measures
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

Un filtro digital (200) adecuado para utilizarse en un dispositivo de comunicacion de acceso multiple de division de codigo o en otro dispositivo de comunicacion en modo de ráfaga (100) emplea la precombinacion de coeficientes de filtro para reducir la complejidad del filtro y la disipacion de energía. El filtro digital (200) incluye un circuito de almacenamiento de coeficientes (216) para almacenar los coeficientes previamente combinados, un circuito de seleccion (212) para seleccionar los coeficientes previamente combinados apropiados en respuesta a la señal de entrada, y un circuito de combinacion (214) para combinar los coeficiente previamente combinados apropiados para producir una señal filtrada.
MX9707599A 1996-10-04 1997-10-03 Filtro digital eficiente y metodo que utiliza la precombinacion de coeficientes. MX9707599A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08726018 1996-10-04
US08/726,018 US5784419A (en) 1996-10-04 1996-10-04 Efficient digital filter and method using coefficient precombing

Publications (2)

Publication Number Publication Date
MXPA97007599A MXPA97007599A (es) 1998-04-01
MX9707599A true MX9707599A (es) 1998-04-30

Family

ID=24916881

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9707599A MX9707599A (es) 1996-10-04 1997-10-03 Filtro digital eficiente y metodo que utiliza la precombinacion de coeficientes.

Country Status (8)

Country Link
US (1) US5784419A (es)
JP (1) JPH10126219A (es)
KR (1) KR100260279B1 (es)
CN (1) CN1114287C (es)
BR (1) BR9704950A (es)
CA (1) CA2216128C (es)
GB (1) GB2318005B (es)
MX (1) MX9707599A (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100388980B1 (ko) * 1998-11-26 2003-10-10 엘지정보통신주식회사 시디엠에이통신시스템의데이터송신장치및방법
JP3414336B2 (ja) * 1999-11-04 2003-06-09 日本電気株式会社 Ｆｉｒフィルタ、ランプアップ・ランプダウン回路
US6650688B1 (en) * 1999-12-20 2003-11-18 Intel Corporation Chip rate selectable square root raised cosine filter for mobile telecommunications
US6983012B1 (en) 2000-08-03 2006-01-03 Golden Bridge Technology Incorporated Implementation of digital filter with reduced hardware
DE10045547A1 (de) * 2000-09-14 2002-04-04 Infineon Technologies Ag Verfahren zur systemunabhängigen digitalen Erzeugung von Mobilkommunikations-Sendesignalen verschiedener Mobilfunkstandards
EP1519602A1 (en) * 2002-06-28 2005-03-30 Mitsubishi Denki Kabushiki Kaisha Radio communication apparatus and common control channel reception method
US6737999B2 (en) * 2002-09-03 2004-05-18 Analog Devices, Inc. Mismatch-shaping for a quadrature digital-to-analog converter
US7463871B2 (en) * 2005-12-09 2008-12-09 Broadcom Corporation Processing received digital data signals based on a received digital data format

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872290A (en) * 1973-09-24 1975-03-18 Sperry Rand Corp Finite impulse response digital filter with reduced storage
GB2095067B (en) * 1981-03-12 1984-10-03 Standard Telephones Cables Ltd Digital filter arrangement
GB2108736B (en) * 1981-10-27 1984-12-12 Standard Telephones Cables Ltd Sum of products multiplier
US4494214A (en) * 1983-02-03 1985-01-15 Rca Corporation Apparatus for generating scaled weighting coefficients for sampled data filters
US4811262A (en) * 1986-09-19 1989-03-07 Rockwell International Corporation Distributed arithmetic realization of second-order normal-form digital filter
US5157693A (en) * 1991-04-01 1992-10-20 Motorola, Inc. Digital modulation circuit
US5487089A (en) * 1992-02-17 1996-01-23 Matsushita Electric Industrial Co., Ltd. Nyquist filter for digital modulation
US5515402A (en) * 1992-08-14 1996-05-07 Harris Corporation Quadrature filter with real conversion
US5353026A (en) * 1992-12-15 1994-10-04 Analog Devices, Inc. Fir filter with quantized coefficients and coefficient quantization method
JP3576573B2 (ja) * 1993-04-16 2004-10-13 キヤノン株式会社 撮像装置
US5535150A (en) * 1993-04-20 1996-07-09 Massachusetts Institute Of Technology Single chip adaptive filter utilizing updatable weighting techniques
JP2541128B2 (ja) * 1993-11-16 1996-10-09 日本電気株式会社 マルチキャリアロ―ルオフフィルタ
KR970001314B1 (ko) * 1994-04-14 1997-02-05 엘지반도체 주식회사 디지탈 필터

Also Published As

Publication number Publication date
GB9720004D0 (en) 1997-11-19
CA2216128C (en) 2000-04-11
BR9704950A (pt) 1998-12-01
CA2216128A1 (en) 1998-04-04
GB2318005B (en) 2001-02-21
GB2318005A (en) 1998-04-08
CN1180268A (zh) 1998-04-29
US5784419A (en) 1998-07-21
KR100260279B1 (ko) 2000-07-01
KR19980032516A (ko) 1998-07-25
CN1114287C (zh) 2003-07-09
JPH10126219A (ja) 1998-05-15

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