DE69413548T2 - Verbessertes rom filter - Google Patents

Verbessertes rom filter

Info

Publication number
DE69413548T2
DE69413548T2 DE69413548T DE69413548T DE69413548T2 DE 69413548 T2 DE69413548 T2 DE 69413548T2 DE 69413548 T DE69413548 T DE 69413548T DE 69413548 T DE69413548 T DE 69413548T DE 69413548 T2 DE69413548 T2 DE 69413548T2
Authority
DE
Germany
Prior art keywords
rom filter
improved rom
improved
filter
rom
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69413548T
Other languages
English (en)
Other versions
DE69413548D1 (de
Inventor
Dennis Rose
Daniel Fague
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Semiconductor Corp
Original Assignee
National Semiconductor Corp
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 National Semiconductor Corp filed Critical National Semiconductor Corp
Application granted granted Critical
Publication of DE69413548D1 publication Critical patent/DE69413548D1/de
Publication of DE69413548T2 publication Critical patent/DE69413548T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H03H17/06—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
    • H03H17/06—Non-recursive filters
    • H03H17/0607—Non-recursive filters comprising a ROM addressed by the input data signals
    • 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
    • H03H17/0225—Measures concerning the multipliers
    • H03H17/0226—Measures concerning the multipliers comprising look-up tables
    • 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
    • H03H17/0621—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
    • H03H17/0635—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
    • H03H17/065—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer
    • H03H17/0657—Non-recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer where the output-delivery frequency is higher than the input sampling frequency, i.e. interpolation
DE69413548T 1993-09-01 1994-07-20 Verbessertes rom filter Expired - Fee Related DE69413548T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/115,491 US5379242A (en) 1993-09-01 1993-09-01 ROM filter
PCT/US1994/008161 WO1995006978A1 (en) 1993-09-01 1994-07-20 An improved rom filter

Publications (2)

Publication Number Publication Date
DE69413548D1 DE69413548D1 (de) 1998-10-29
DE69413548T2 true DE69413548T2 (de) 1999-05-20

Family

ID=22361750

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69413548T Expired - Fee Related DE69413548T2 (de) 1993-09-01 1994-07-20 Verbessertes rom filter

Country Status (6)

Country Link
US (1) US5379242A (de)
EP (1) EP0716785B1 (de)
JP (1) JPH09502066A (de)
KR (1) KR960705403A (de)
DE (1) DE69413548T2 (de)
WO (1) WO1995006978A1 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0608664B1 (de) * 1993-01-29 1999-05-06 STMicroelectronics S.r.l. Verfahren zur Filterung digitaler Signale mit hoher Auslösung und entsprechendem Aufbau digitaler Filter
US5586068A (en) * 1993-12-08 1996-12-17 Terayon Corporation Adaptive electronic filter
US5530661A (en) * 1994-10-05 1996-06-25 Winnov Data bit-slicing apparatus and method for computing convolutions
US5768317A (en) * 1995-05-08 1998-06-16 National Semiconductor Corporation Equalization filter compensating for distortion in a surface acoustic wave device
US5512865A (en) * 1995-05-08 1996-04-30 National Semiconductor Corporation Digital oversampled quadrature modulator
KR0181165B1 (ko) * 1995-06-29 1999-04-01 김광호 유한장 임펄스응답 필터 및 그 필터링 방법
US6487190B1 (en) * 1996-06-27 2002-11-26 Interdigital Technology Corporation Efficient multichannel filtering for CDMA modems
US7123600B2 (en) * 1995-06-30 2006-10-17 Interdigital Technology Corporation Initial power control for spread-spectrum communications
US6816473B2 (en) 1995-06-30 2004-11-09 Interdigital Technology Corporation Method for adaptive forward power control for spread-spectrum communications
US7072380B2 (en) * 1995-06-30 2006-07-04 Interdigital Technology Corporation Apparatus for initial power control for spread-spectrum communications
ZA965340B (en) * 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US7929498B2 (en) * 1995-06-30 2011-04-19 Interdigital Technology Corporation Adaptive forward power control and adaptive reverse power control for spread-spectrum communications
US6697350B2 (en) 1995-06-30 2004-02-24 Interdigital Technology Corporation Adaptive vector correlator for spread-spectrum communications
US6940840B2 (en) 1995-06-30 2005-09-06 Interdigital Technology Corporation Apparatus for adaptive reverse power control for spread-spectrum communications
US6885652B1 (en) * 1995-06-30 2005-04-26 Interdigital Technology Corporation Code division multiple access (CDMA) communication system
US6788662B2 (en) 1995-06-30 2004-09-07 Interdigital Technology Corporation Method for adaptive reverse power control for spread-spectrum communications
US7020111B2 (en) * 1996-06-27 2006-03-28 Interdigital Technology Corporation System for using rapid acquisition spreading codes for spread-spectrum communications
KR100237380B1 (ko) * 1997-06-16 2000-01-15 이계철 고속 롬 기반 나이퀴스트 유한 임펄스 응답 필터
US20020051434A1 (en) * 1997-10-23 2002-05-02 Ozluturk Fatih M. Method for using rapid acquisition spreading codes for spread-spectrum communications
US6272509B1 (en) * 1997-12-12 2001-08-07 Matsushita Electric Industrial Co., Ltd. Filter device
FR2777145B1 (fr) * 1998-04-02 2000-04-28 Alsthom Cge Alcatel Modulateur multiporteuses large bande et procede de programmation correspondant
JP3703083B2 (ja) * 2001-01-10 2005-10-05 松下電器産業株式会社 波形発生装置
US6489908B2 (en) * 2001-04-30 2002-12-03 Texas Instruments Incorporated Wireless local loop terminal and system having high speed, high resolution, digital-to-analog converter with off-line sigma-delta conversion and storage
US6515605B2 (en) * 2001-04-30 2003-02-04 Texas Instruments Incorporated Base station having high speed, high resolution, digital-to-analog converter with off-line sigma delta conversion and storage
US6518902B2 (en) * 2001-04-30 2003-02-11 Texas Instruments Incorporated PC card and WLAN system having high speed, high resolution, digital-to analog converter with off-line sigma delta conversion and storage
US7129753B2 (en) * 2004-05-26 2006-10-31 Infineon Technologies Ag Chip to chip interface
US7307570B2 (en) * 2005-07-20 2007-12-11 M/A-Com, Inc. Method and apparatus to emulate a filter
US7436339B2 (en) * 2005-07-20 2008-10-14 M/A-Com, Inc. Method and apparatus to emulate a filter using digital elements
US9037102B1 (en) * 2012-07-10 2015-05-19 Marvell International Ltd. Method and apparatus for envelope tracking

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61186012A (ja) * 1985-02-13 1986-08-19 Sony Corp 伝送装置の波形整形回路
US4835723A (en) * 1987-04-03 1989-05-30 Tektronix, Inc. Phase coordinated multistage digital filter
JPH01245607A (ja) * 1988-03-25 1989-09-29 Ricoh Co Ltd 合成型良限インパルス応答デジタルフィルタ
US5140613A (en) * 1990-05-25 1992-08-18 Hewlett-Packard Company Baseband modulation system with improved ROM-based digital filter
US5097433A (en) * 1990-07-11 1992-03-17 General Electric Company Stack filter with one stage per bit
US5230008A (en) * 1991-01-18 1993-07-20 Motorola, Inc. Multi-amplitude sample generating apparatus and method

Also Published As

Publication number Publication date
EP0716785A1 (de) 1996-06-19
WO1995006978A1 (en) 1995-03-09
US5379242A (en) 1995-01-03
KR960705403A (ko) 1996-10-09
JPH09502066A (ja) 1997-02-25
EP0716785B1 (de) 1998-09-23
DE69413548D1 (de) 1998-10-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee