KR970004332A - 보간 장치 - Google Patents

보간 장치 Download PDF

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Publication number
KR970004332A
KR970004332A KR1019960022735A KR19960022735A KR970004332A KR 970004332 A KR970004332 A KR 970004332A KR 1019960022735 A KR1019960022735 A KR 1019960022735A KR 19960022735 A KR19960022735 A KR 19960022735A KR 970004332 A KR970004332 A KR 970004332A
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KR
South Korea
Prior art keywords
input
adder
interpolator
subtractor
port
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KR1019960022735A
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KR100433113B1 (ko
Inventor
칼 피터슨 에릭
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에릭 피. 헤르만
톰슨 컨슈머 일렉트로닉스 인코포레이티드
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Publication of KR970004332A publication Critical patent/KR970004332A/ko
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/16—Modifications for eliminating interference voltages or currents
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/04—Recursive filters
    • H03H17/0416—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
    • H03H17/0427—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
    • H03H17/0438—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
    • H03H17/0444—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
    • 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

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Complex Calculations (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

보간 필터는 감산기(14), 가중치 회로(15) 및 가산기(22)를 포함하고, 상기 감산기는 인접한 원래의 샘플의 차이값을 형성하도록 조정되고, 상기 가중치 회로는 상기 차이값에 소정의 값의 가중치를 더한다. 상기 가산기는 a) 원래의 샘플을 통과시키고, b) 원래의 샘플에 가중치가 더해진 차이값(20)을 더하고, c) 연속적인 샘플을 생성하기 위해 가중치가 더해진 차이값을 이전에 생성된 (18,22,24) 샘플에 연속적으로 더하도록 배치된다(18).

Description

보간 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명을 채용한 보간기의 블록도.

Claims (9)

  1. 보간기에 있어서, 입력 샘플 원(Source)과, 두개의 입력 샘플을 동시에 제공하도록 배열된 지연 회로(10,12)와, 상기 두개의 입력 샘플을 수신하도록 접속된 제1 및 제2의 입력 포트를 갖는 감산기(14)와, 보간된 샘플을 생성하기 위해 상기 감산기에 의해 제공된 가중치가 더해진 차이값(15)을 상기 두개의 입력 샘플중 하나에 더하도록 조정되고, 추가의 보간된 샘플을 생성하기 위해 상기 가중치가 더해진 차이값을 상기 보간된 샘플에 더하도록 조정된 가산 회로(18∼24)를 특징으로 하는 보간기.
  2. 제1항에 있어서, 상기 가산 회로는, 제1 및 제2의 입력 포트와 하나의 출력 포트를 갖는 가산기(22)와, 상기 가산기의 제1의 입력 포트에 접속된 하나의 출력 포트, 상기 가산기의 출력 포트에 접속된 제1의 입력 포트, 및 상기 지연 회로(10,12)에 접속된 제2의 입력 포트를 갖는 멀티플렉서(18)와, 상기 가산기의 상기 제2의 입력 포트에 접속된 출력 포트와 상기 감산기에 접속된 입력 포트를 갖고 차이값의 신호 또는 0의 값을 상기 가산기에 접속하도록 조정된 추가의 회로(20)를 포함하는 것을 특징으로 하는 보간기.
  3. 제2항에 있어서, 상기 추가의 회로는 추가의 멀티플렉서(20)를 포함하는 것을 특징으로 하는 보간기.
  4. 제2항에 있어서, 상기 추가의 회로는 AND 게이트를 포함하는 것을 특징으로 하는 보간기.
  5. 제1항에 있어서, 상기 감산기는, 상기 감산기에 의해 제공된 차이값의 분수값을 생성하기 위해, 가중치회로(15)를 포함하는 것을 특징으로 하는 보간기.
  6. 제5항에 있어서, 상기 가중치 회로와 상치 추가의 회로 사이에 접속된 하나의 래치(16)를 특징으로 하는 보간기.
  7. 제1항에 있어서, 상기 감산기의 상기 가산 회로 사이에 접속된 하나의 래치(16)를 특징으로 하는 보간기.
  8. 제2항에 있어서, 상기 가산기의 출력 포트와 상기 멀티플렉서의 제1의 입력 포트 사이에 접속된 하나의 래치(24)를 특징으로 하는 보간기.
  9. 보간기에 있어서, 입력 샘플을 수신하기 위한 하나의 입력 포트와 두개의 입력 샘플을 동시에 제공하기 위한 제1 및 제2의 출력 포트를 갖는 지연 회로(10,12)와, 상기 지연 회로의 제1 및 제2의 출력 포트에 접속된 제1 및 제2의 입력 포트와, 가중치가 더해진 차이값이 제공되는 출력 포트를 갖는 감산기(14,15)와, 상기 가중치가 더해진 차이값을 수신하기 위해 접속된 제1의 입력 포트와, 보간된 샘플을 제공하기 위한 하나의 출력 포트를 갖고, 가중치가 더해진 각각의 차이값을 각각의 보간된 샘플에 더하도록 조정된 누산기(Accumulator)(40∼44)를 특징으로 하는 보간기.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960022735A 1995-06-29 1996-06-21 보간기 Expired - Fee Related KR100433113B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/496,779 US5694345A (en) 1995-06-29 1995-06-29 Hardware efficient interpolation filter
US496,779 1995-06-29

Publications (2)

Publication Number Publication Date
KR970004332A true KR970004332A (ko) 1997-01-29
KR100433113B1 KR100433113B1 (ko) 2004-09-04

Family

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Family Applications (1)

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KR1019960022735A Expired - Fee Related KR100433113B1 (ko) 1995-06-29 1996-06-21 보간기

Country Status (7)

Country Link
US (1) US5694345A (ko)
EP (1) EP0751618B1 (ko)
JP (1) JPH0934604A (ko)
KR (1) KR100433113B1 (ko)
CN (1) CN1110135C (ko)
DE (1) DE69623871T2 (ko)
MX (1) MX9602531A (ko)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5850227A (en) * 1996-12-20 1998-12-15 Compaq Computer Corporation Bit map stretching using operand routing and operation selective multimedia extension unit
US5931892A (en) * 1996-12-20 1999-08-03 Compaq Computer Corporation Enhanced adaptive filtering technique
US6006245A (en) * 1996-12-20 1999-12-21 Compaq Computer Corporation Enhanced fast fourier transform technique on vector processor with operand routing and slot-selectable operation
US5862063A (en) * 1996-12-20 1999-01-19 Compaq Computer Corporation Enhanced wavetable processing technique on a vector processor having operand routing and slot selectable operations
US6215504B1 (en) 1996-12-20 2001-04-10 Compaq Computer Corporation Line drawing using operand routing and operation selective multimedia extension unit
US5991865A (en) * 1996-12-31 1999-11-23 Compaq Computer Corporation MPEG motion compensation using operand routing and performing add and divide in a single instruction
EP0889587B1 (de) * 1997-07-02 2005-11-16 Micronas Semiconductor Holding AG Einrichtung zur Reduktion der Datenrate
US6073151A (en) * 1998-06-29 2000-06-06 Motorola, Inc. Bit-serial linear interpolator with sliced output
US7002997B2 (en) * 2001-06-22 2006-02-21 Winbond Electronics Corp. Interpolation filter structure
US6978288B1 (en) * 2002-08-08 2005-12-20 Young Chang Akki Co., Ltd Coefficient update unit
JP2006140825A (ja) * 2004-11-12 2006-06-01 Sanyo Electric Co Ltd トラップフィルタ

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US4313173A (en) * 1980-06-10 1982-01-26 Bell Telephone Laboratories, Incorporated Linear interpolator
JPS5856181A (ja) * 1981-09-30 1983-04-02 Fujitsu Ltd 補間演算回路
EP0199192B1 (en) * 1985-04-12 1995-09-13 Yamaha Corporation Tone signal generation device
JPH0732345B2 (ja) * 1985-09-13 1995-04-10 株式会社日立製作所 デイジタル補間フイルタ回路
JP2766662B2 (ja) * 1989-03-15 1998-06-18 株式会社河合楽器製作所 楽音発生装置の波形データ読み出し装置及び波形データ読み出し方法
DE3916256A1 (de) * 1989-05-18 1990-11-22 Ant Nachrichtentech Digitalfilter mit daempfungs- und phasengangentzerrung
US5111727A (en) * 1990-01-05 1992-05-12 E-Mu Systems, Inc. Digital sampling instrument for digital audio data
JPH03209918A (ja) * 1990-01-11 1991-09-12 Zero Eng:Kk Ｐｃｍ変復調装置の積分補間装置
US5177698A (en) * 1990-07-09 1993-01-05 Eastman Kodak Company Selectable power of two coefficient signal combining circuit

Also Published As

Publication number Publication date
DE69623871T2 (de) 2003-02-20
DE69623871D1 (de) 2002-10-31
JPH0934604A (ja) 1997-02-07
US5694345A (en) 1997-12-02
KR100433113B1 (ko) 2004-09-04
MX9602531A (es) 1998-04-30
EP0751618A1 (en) 1997-01-02
CN1110135C (zh) 2003-05-28
EP0751618B1 (en) 2002-09-25
CN1141535A (zh) 1997-01-29

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