JPH07120924B2 - 標本化周波数変換装置 - Google Patents

標本化周波数変換装置

Info

Publication number
JPH07120924B2
JPH07120924B2 JP2186981A JP18698190A JPH07120924B2 JP H07120924 B2 JPH07120924 B2 JP H07120924B2 JP 2186981 A JP2186981 A JP 2186981A JP 18698190 A JP18698190 A JP 18698190A JP H07120924 B2 JPH07120924 B2 JP H07120924B2
Authority
JP
Japan
Prior art keywords
sampling frequency
sampling
output
coefficient
filter coefficient
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
JP2186981A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0372711A (ja
Inventor
アージェイ・ケイ・ルースラ
ガネッシュ・ラージャン
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.)
Tektronix Inc
Original Assignee
Tektronix 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 Tektronix Inc filed Critical Tektronix Inc
Publication of JPH0372711A publication Critical patent/JPH0372711A/ja
Publication of JPH07120924B2 publication Critical patent/JPH07120924B2/ja
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
    • H03H17/0223—Computation saving measures; Accelerating measures
    • H03H17/0227—Measures concerning the coefficients
    • 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
    • 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
    • H03H17/0664—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 lower than the input sampling frequency, i.e. decimation
    • 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
    • H03H17/0685—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 rational
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0135—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving interpolation processes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Picture Signal Circuits (AREA)
  • Television Signal Processing For Recording (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
JP2186981A 1989-07-14 1990-07-13 標本化周波数変換装置 Expired - Fee Related JPH07120924B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37985089A 1989-07-14 1989-07-14
US379850 1989-07-14

Publications (2)

Publication Number Publication Date
JPH0372711A JPH0372711A (ja) 1991-03-27
JPH07120924B2 true JPH07120924B2 (ja) 1995-12-20

Family

ID=23498974

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2186981A Expired - Fee Related JPH07120924B2 (ja) 1989-07-14 1990-07-13 標本化周波数変換装置

Country Status (3)

Country Link
JP (1) JPH07120924B2 (cs)
DE (1) DE4022387A1 (cs)
GB (1) GB2236452B (cs)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236452B (en) 1989-07-14 1993-12-08 Tektronix Inc Coefficient reduction in a low ratio sampling rate converter
GB2244887A (en) * 1990-04-11 1991-12-11 Rank Cintel Ltd Spatial transformation of video images
JP3066241B2 (ja) * 1993-12-28 2000-07-17 株式会社エフ・エフ・シー ディジタルフィルタ及び同ディジタルフィルタを用いたオーバサンプリング型アナログ／ディジタル変換器
GB2315625B (en) * 1996-07-17 2001-02-21 Roke Manor Research Improvements in or relating to interpolating filters
US6927826B2 (en) 1997-03-26 2005-08-09 Semiconductor Energy Labaratory Co., Ltd. Display device
JPH11307782A (ja) 1998-04-24 1999-11-05 Semiconductor Energy Lab Co Ltd 半導体装置およびその作製方法
GB2356506A (en) * 1999-09-25 2001-05-23 Eastman Kodak Co Multiple dimension interpolator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236452A (en) 1989-07-14 1991-04-03 Tektronix Inc Determining interpolation weighting coefficients for low ratio sampling rate converter
US5023825A (en) 1989-07-14 1991-06-11 Tektronix, Inc. Coefficient reduction in a low ratio sampling rate converter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59105712A (ja) * 1982-12-09 1984-06-19 Fujitsu Ltd デイジタルフイルタ
JPH0793548B2 (ja) * 1987-08-31 1995-10-09 三洋電機株式会社 標本化周波数変換回路
US4837619A (en) * 1987-10-28 1989-06-06 North American Philips Corporation Scan rate conversion apparatus and method
JP2600236B2 (ja) * 1987-12-29 1997-04-16 ソニー株式会社 サンプリング周波数変換回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236452A (en) 1989-07-14 1991-04-03 Tektronix Inc Determining interpolation weighting coefficients for low ratio sampling rate converter
US5023825A (en) 1989-07-14 1991-06-11 Tektronix, Inc. Coefficient reduction in a low ratio sampling rate converter

Also Published As

Publication number Publication date
JPH0372711A (ja) 1991-03-27
GB2236452B (en) 1993-12-08
DE4022387A1 (de) 1991-01-24
DE4022387C2 (cs) 1992-11-19
GB9015252D0 (en) 1990-08-29
GB2236452A (en) 1991-04-03

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees