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JPS5567219A - Equalizer unit - Google Patents

Equalizer unit

Info

Publication number
JPS5567219A
JPS5567219A JP14084478A JP14084478A JPS5567219A JP S5567219 A JPS5567219 A JP S5567219A JP 14084478 A JP14084478 A JP 14084478A JP 14084478 A JP14084478 A JP 14084478A JP S5567219 A JPS5567219 A JP S5567219A
Authority
JP
Japan
Prior art keywords
information
digital
equalized
peak
memory
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.)
Pending
Application number
JP14084478A
Other languages
Japanese (ja)
Inventor
Tadamichi Kawasaki
Koji Iwasaki
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.)
Toshiba Corp
EMI Music Japan Inc
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Toshiba Emi Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd, Toshiba Emi Ltd filed Critical Toshiba Corp
Priority to JP14084478A priority Critical patent/JPS5567219A/en
Publication of JPS5567219A publication Critical patent/JPS5567219A/en
Pending 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

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To make it possible to equalize digital signals with a simple constitution by processing input signals on a basis of delay control information and constant multiplication control information. CONSTITUTION:Digital signals are equalized by a biquad digital filter. The equalizer transfer characteristic is determined by noticing two peak and dip points. At this time, peak and dip characteristics are determined by 48 kinds of basic paramer information in respect to center frequency omegao, sampling frequency T, gain g and Q value. These basic parameters are stored in memory 4 previously, and they are read from memory 4 and are synthesized and are made into coefficient information b for delay and constant multiplication to control an adder circuit, so that input signals can be equalized as a digital quantity as they are.
JP14084478A 1978-11-15 1978-11-15 Equalizer unit Pending JPS5567219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14084478A JPS5567219A (en) 1978-11-15 1978-11-15 Equalizer unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14084478A JPS5567219A (en) 1978-11-15 1978-11-15 Equalizer unit

Publications (1)

Publication Number Publication Date
JPS5567219A true JPS5567219A (en) 1980-05-21

Family

ID=15278023

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14084478A Pending JPS5567219A (en) 1978-11-15 1978-11-15 Equalizer unit

Country Status (1)

Country Link
JP (1) JPS5567219A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6093165U (en) * 1983-11-30 1985-06-25 日本電気ホームエレクトロニクス株式会社 Digital audio playback device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6093165U (en) * 1983-11-30 1985-06-25 日本電気ホームエレクトロニクス株式会社 Digital audio playback device

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