JPS5488754A - Digital filter - Google Patents

Digital filter

Info

Publication number
JPS5488754A
JPS5488754A JP15686777A JP15686777A JPS5488754A JP S5488754 A JPS5488754 A JP S5488754A JP 15686777 A JP15686777 A JP 15686777A JP 15686777 A JP15686777 A JP 15686777A JP S5488754 A JPS5488754 A JP S5488754A
Authority
JP
Japan
Prior art keywords
signal
delay
input
output
phase
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
JP15686777A
Other languages
Japanese (ja)
Inventor
Takashi Usami
Kensaku Fujii
Takeo Koinuma
Kazuo Saito
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.)
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Nippon Telegraph and Telephone 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 Fujitsu Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP15686777A priority Critical patent/JPS5488754A/en
Publication of JPS5488754A publication Critical patent/JPS5488754A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/04—Frequency selective two-port networks

Landscapes

  • Processing Of Color Television Signals (AREA)
  • Filters That Use Time-Delay Elements (AREA)

Abstract

PURPOSE:To obtain filter effect, by eliminating signal with the subtraction or addition between the input signal and the delay signal, through the delay of the signal having the frequency to be eliminated so that it is in-phase or opposite phase between the input and output of the delay circuit. CONSTITUTION:The signal having angular frequency of (2N+1)omegao (N=0,1,2...) is opposite phase at the output of the delay circuit DL in comparision with the input through the delay in (2N+1)pi radian. The signal having the angular frequency omega= 2Nomegao(N=0,1,2...) receives delay in 2Npi radian with the input and output of the delay circuit DL and becomes in-phase. That is, by combinating the basic filters as shown in Fig., the filter having various frequency performance can be synthesized.
JP15686777A 1977-12-26 1977-12-26 Digital filter Pending JPS5488754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15686777A JPS5488754A (en) 1977-12-26 1977-12-26 Digital filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15686777A JPS5488754A (en) 1977-12-26 1977-12-26 Digital filter

Publications (1)

Publication Number Publication Date
JPS5488754A true JPS5488754A (en) 1979-07-14

Family

ID=15637112

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15686777A Pending JPS5488754A (en) 1977-12-26 1977-12-26 Digital filter

Country Status (1)

Country Link
JP (1) JPS5488754A (en)

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