DE68927120T2 - Interpolator und Verfahren zur Interpolierung von digitalen Signalmustern - Google Patents

Interpolator und Verfahren zur Interpolierung von digitalen Signalmustern

Info

Publication number
DE68927120T2
DE68927120T2 DE68927120T DE68927120T DE68927120T2 DE 68927120 T2 DE68927120 T2 DE 68927120T2 DE 68927120 T DE68927120 T DE 68927120T DE 68927120 T DE68927120 T DE 68927120T DE 68927120 T2 DE68927120 T2 DE 68927120T2
Authority
DE
Germany
Prior art keywords
interpolator
digital signal
signal patterns
interpolating digital
interpolating
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
DE68927120T
Other languages
English (en)
Other versions
DE68927120D1 (de
Inventor
Cecil William Farrow
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.)
AT&T Corp
Original Assignee
AT&T 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 AT&T Corp filed Critical AT&T Corp
Application granted granted Critical
Publication of DE68927120D1 publication Critical patent/DE68927120D1/de
Publication of DE68927120T2 publication Critical patent/DE68927120T2/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
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/028—Polynomial filters
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/17—Function evaluation by approximation methods, e.g. inter- or extrapolation, smoothing, least mean square method
    • 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
DE68927120T 1988-02-04 1989-01-27 Interpolator und Verfahren zur Interpolierung von digitalen Signalmustern Expired - Fee Related DE68927120T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/152,281 US4866647A (en) 1988-02-04 1988-02-04 Continuously variable digital delay circuit

Publications (2)

Publication Number Publication Date
DE68927120D1 DE68927120D1 (de) 1996-10-17
DE68927120T2 true DE68927120T2 (de) 1997-01-30

Family

ID=22542251

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68927120T Expired - Fee Related DE68927120T2 (de) 1988-02-04 1989-01-27 Interpolator und Verfahren zur Interpolierung von digitalen Signalmustern

Country Status (5)

Country Link
US (1) US4866647A (de)
EP (1) EP0327268B1 (de)
JP (1) JP2724188B2 (de)
CA (1) CA1298354C (de)
DE (1) DE68927120T2 (de)

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DE19606357A1 (de) * 1996-02-12 1997-08-14 Gmd Gmbh Bildverarbeitungsverfahren zur Darstellung von spiegelnden Objekten und zugehörige Vorrichtung
US6819514B1 (en) 1996-04-30 2004-11-16 Cirrus Logic, Inc. Adaptive equalization and interpolated timing recovery in a sampled amplitude read channel for magnetic recording
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US6359878B1 (en) 1998-07-20 2002-03-19 Wirless Facilities, Inc. Non-data-aided maximum likelihood based feedforward timing synchronization method
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US6295325B1 (en) 1997-11-14 2001-09-25 Agere Systems Guardian Corp. Fixed clock based arbitrary symbol rate timing recovery loop
US6452948B1 (en) * 1998-06-10 2002-09-17 Sicom, Inc. Method for baud-clock phase synchronization in a TDMA digital communications system and apparatus therefor
US6282248B1 (en) 1998-07-14 2001-08-28 Agere Systems Guardian Corp. Variable baud rate demodulator
US6233598B1 (en) * 1998-09-11 2001-05-15 International Business Machines Corporation Interleaved finite impulse response (FIR) filter functions for servo and data detection in a direct access storage device (DASD)
US6430235B1 (en) 1998-11-05 2002-08-06 Wireless Facilities, Inc. Non-data-aided feedforward timing synchronization method
US6487672B1 (en) 1998-12-24 2002-11-26 Stmicroelectronics, N.V. Digital timing recovery using baud rate sampling
US6591283B1 (en) * 1998-12-24 2003-07-08 Stmicroelectronics N.V. Efficient interpolator for high speed timing recovery
US6307694B1 (en) 1999-02-24 2001-10-23 Cirrus Logic, Inc. Error signal biasing for an adaptive filter in a disk drive read channel
US6381085B1 (en) 1999-07-12 2002-04-30 Cirrus Logic, Inc. Zero forcing adaptive equalization in a disk drive read channel
US6396788B1 (en) 1999-07-13 2002-05-28 Cirrus Logic, Inc. Re-timing and up-sampling a sub-sampled user data signal from in an optical disk
KR100696333B1 (ko) * 1999-08-31 2007-03-21 유티스타콤코리아 유한회사 디지털 라디오 시스템에서의 다양한 인터폴레이션 레이트를 지원하는 안티이미징 필터
US6600495B1 (en) 2000-01-10 2003-07-29 Koninklijke Philips Electronics N.V. Image interpolation and decimation using a continuously variable delay filter and combined with a polyphase filter
DE10042930B4 (de) * 2000-08-31 2005-07-14 Infineon Technologies Ag Digitales Filter
FR2832568A1 (fr) * 2001-11-20 2003-05-23 Koninkl Philips Electronics Nv Convertisseur numerique de frequence d'echantillonnage
US20030103166A1 (en) * 2001-11-21 2003-06-05 Macinnis Alexander G. Method and apparatus for vertical compression and de-compression of progressive video data
US7003027B2 (en) * 2001-12-10 2006-02-21 Agere Systems Inc. Efficient PCM modem
FR2837647B1 (fr) * 2002-03-25 2006-11-24 Canon Kk Emetteur sans fil a consommation de puissance reduite
DE60325672D1 (de) * 2002-06-10 2009-02-26 Kao Corp Ein absorbierender Kern und Verfahren zu dessen Herstellung
US7098821B2 (en) * 2003-02-14 2006-08-29 Atheros Communications, Inc. Receiving and transmitting signals having multiple modulation types using sequencing interpolator
US7738736B2 (en) * 2003-05-09 2010-06-15 Inphase Technologies, Inc. Methods and systems for holographic data recovery
JP4143703B2 (ja) * 2004-01-30 2008-09-03 テクトロニクス・インターナショナル・セールス・ゲーエムベーハー デジタル演算処理方法
US20060045173A1 (en) * 2004-08-31 2006-03-02 Ittiam Systems (P) Ltd. Method and apparatus for improving upstream pulse code modulation connect rates of an analog modem
US20060045174A1 (en) * 2004-08-31 2006-03-02 Ittiam Systems (P) Ltd. Method and apparatus for synchronizing a transmitter clock of an analog modem to a remote clock
EP1886502A2 (de) * 2005-04-13 2008-02-13 Universität Hannover Verfahren und vorrichtung zur verbesserten videocodierung
US20070061390A1 (en) * 2005-09-09 2007-03-15 Leo Bredehoft Interpolator using splines generated from an integrator stack seeded at input sample points
US7528844B2 (en) * 2005-11-10 2009-05-05 Harris Corporation Interpolation of plotted points between sample values
US20080309524A1 (en) * 2007-06-18 2008-12-18 Texas Instruments Incorporated Second-Order Polynomial, Interpolation-Based, Sampling Rate Converter and Method and Transmitters Employing the Same
US7515073B2 (en) * 2007-08-17 2009-04-07 Infineon Technologies Ag Digital sample rate conversion
US7522074B2 (en) * 2007-09-17 2009-04-21 Samplify Systems, Inc. Enhanced control for compression and decompression of sampled signals
US8346021B2 (en) * 2009-05-05 2013-01-01 Analog Devices, Inc. Content adaptive scaler based on a farrow structure
US8244142B2 (en) * 2009-10-28 2012-08-14 Opnext Subsystems, Inc. Optical receiver having fractional sampling
US20110236025A1 (en) * 2010-03-25 2011-09-29 Opnext Subsystems, Inc. Sub-rate sampling in coherent optical receivers
US20110298972A1 (en) 2010-06-04 2011-12-08 Stmicroelectronics Asia Pacific Pte. Ltd. System and process for image rescaling using adaptive interpolation kernel with sharpness and de-ringing control
JP6362363B2 (ja) * 2014-03-10 2018-07-25 キヤノン株式会社 画像推定方法、プログラム、記録媒体および画像推定装置
US9660625B1 (en) 2016-05-03 2017-05-23 International Business Machines Corporation Continuously tunable delay line
US9947362B1 (en) * 2016-06-25 2018-04-17 Seagate Technology Llc Asynchronous interference cancellation
DE102022210929A1 (de) 2022-10-17 2024-04-18 Aktiebolaget Skf Vorrichtung und Verfahren zum Verarbeiten eines digitalen Signals

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US4460890A (en) * 1982-01-21 1984-07-17 Sony Corporation Direct digital to digital sampling rate conversion, method and apparatus
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US4780892A (en) * 1984-10-05 1988-10-25 Willi Studer Ag Scanning frequency synchronization method and apparatus
JPH07118703B2 (ja) * 1985-09-11 1995-12-18 日本電気株式会社 クロツク制御回路
JPS621312A (ja) * 1985-06-27 1987-01-07 Toshiba Corp デイジタルフイルタ

Also Published As

Publication number Publication date
JPH027710A (ja) 1990-01-11
EP0327268A3 (de) 1992-08-05
EP0327268B1 (de) 1996-09-11
JP2724188B2 (ja) 1998-03-09
US4866647A (en) 1989-09-12
CA1298354C (en) 1992-03-31
EP0327268A2 (de) 1989-08-09
DE68927120D1 (de) 1996-10-17

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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