JP5127345B2 - ディジタルフィルタ - Google Patents
ディジタルフィルタ Download PDFInfo
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- JP5127345B2 JP5127345B2 JP2007195649A JP2007195649A JP5127345B2 JP 5127345 B2 JP5127345 B2 JP 5127345B2 JP 2007195649 A JP2007195649 A JP 2007195649A JP 2007195649 A JP2007195649 A JP 2007195649A JP 5127345 B2 JP5127345 B2 JP 5127345B2
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Description
この発明の実施の形態1に係るディジタルフィルタについて図1から図4までを参照しながら説明する。図1は、この発明の実施の形態1に係るディジタルフィルタの構成を示す回路図である。なお、以降では、各図中、同一符号は同一又は相当部分を示す。
Claims (1)
- シリアル入力から時分割分離されたp(pは並列展開数)個のパラレル入力を出力する時分割分離回路と、
前記p個のパラレル入力に単位時間をそれぞれ与えるp個の遅延素子と、
各々がルックアップテーブルの1アドレスに相当するフィルタ演算結果のデータを保持するr(タップ数がkである場合、r=2^k)個の記憶素子と、
前記p個のパラレル入力及び前記p個の遅延素子の出力を並べた信号の中からkビット分を、1ビットずつずらしたものを選択信号として用い、前記r個の記憶素子の出力から分岐された信号を選択してp個のパラレル出力をそれぞれ出力するp個のセレクタと、
前記p個のパラレル出力を時分割多重してシリアル出力として出力する時分割多重回路と
を備えたことを特徴とするディジタルフィルタ。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007195649A JP5127345B2 (ja) | 2007-07-27 | 2007-07-27 | ディジタルフィルタ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2007195649A JP5127345B2 (ja) | 2007-07-27 | 2007-07-27 | ディジタルフィルタ |
Publications (2)
Publication Number | Publication Date |
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JP2009033502A JP2009033502A (ja) | 2009-02-12 |
JP5127345B2 true JP5127345B2 (ja) | 2013-01-23 |
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Application Number | Title | Priority Date | Filing Date |
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JP2007195649A Active JP5127345B2 (ja) | 2007-07-27 | 2007-07-27 | ディジタルフィルタ |
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JP (1) | JP5127345B2 (ja) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5014708B2 (ja) * | 2006-08-28 | 2012-08-29 | 三菱電機株式会社 | 並列化ルックアップテーブル方式 |
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JP2009033502A (ja) | 2009-02-12 |
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