JPS5671324A - Transversal filter - Google Patents

Transversal filter

Info

Publication number
JPS5671324A
JPS5671324A JP14746979A JP14746979A JPS5671324A JP S5671324 A JPS5671324 A JP S5671324A JP 14746979 A JP14746979 A JP 14746979A JP 14746979 A JP14746979 A JP 14746979A JP S5671324 A JPS5671324 A JP S5671324A
Authority
JP
Japan
Prior art keywords
input
time
operated
switch
tau
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.)
Granted
Application number
JP14746979A
Other languages
Japanese (ja)
Other versions
JPS6252968B2 (en
Inventor
Norio Ueno
Seiji Kato
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
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP14746979A priority Critical patent/JPS5671324A/en
Publication of JPS5671324A publication Critical patent/JPS5671324A/en
Publication of JPS6252968B2 publication Critical patent/JPS6252968B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H15/00—Transversal filters

Landscapes

  • Filters That Use Time-Delay Elements (AREA)

Abstract

PURPOSE:To give an input signal, to select the charging time in T-tau time with the order according to transversal constitution, and to synthesize it and output, by giving a signal every other T time per electrostatic capacity to the input side in tau (<T) time by the switch. CONSTITUTION:Input signals are input from an input terminal 11, and switches S11-S1n are connected to the input side, then the input signals charge up electrostatic capacity rows C11-C1n for tau time (<T). Next, after the time T, switches S12-S2n are operated and capacit rows C21-C2n are connected to charge up the input signals. The capacity each row is charged in the interval of T by the input signal, switch Sj(n-j+2) is operated after T/2, switch Sj(n-j+3) is operated after T+T/2 and switch Sj(n-j+4) is operated after 2T+T/2 respectively for the connection to output side, and the input signal charged up by T-T/2=T/2, is output. Thus, a transversal filter not using operational amplifiers is made for capacitor switching.
JP14746979A 1979-11-14 1979-11-14 Transversal filter Granted JPS5671324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14746979A JPS5671324A (en) 1979-11-14 1979-11-14 Transversal filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14746979A JPS5671324A (en) 1979-11-14 1979-11-14 Transversal filter

Publications (2)

Publication Number Publication Date
JPS5671324A true JPS5671324A (en) 1981-06-13
JPS6252968B2 JPS6252968B2 (en) 1987-11-09

Family

ID=15431080

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14746979A Granted JPS5671324A (en) 1979-11-14 1979-11-14 Transversal filter

Country Status (1)

Country Link
JP (1) JPS5671324A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59161117A (en) * 1983-03-04 1984-09-11 Nec Corp Switched capacitor type cable equalizer
WO2007116974A1 (en) * 2006-04-07 2007-10-18 Panasonic Corporation Filter device
WO2007142341A1 (en) * 2006-06-08 2007-12-13 Panasonic Corporation Discrete filter, sampling mixer, and radio device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59161117A (en) * 1983-03-04 1984-09-11 Nec Corp Switched capacitor type cable equalizer
JPH0311567B2 (en) * 1983-03-04 1991-02-18 Nippon Denki Kk
WO2007116974A1 (en) * 2006-04-07 2007-10-18 Panasonic Corporation Filter device
JP2009147401A (en) * 2006-04-07 2009-07-02 Panasonic Corp Filter device
US7664811B2 (en) 2006-04-07 2010-02-16 Panasonic Corporation Apparatus using sampling capacitors
WO2007142341A1 (en) * 2006-06-08 2007-12-13 Panasonic Corporation Discrete filter, sampling mixer, and radio device
US8032094B2 (en) 2006-06-08 2011-10-04 Panasonic Corporation Discrete filter, sampling mixer, and radio device
JP5258559B2 (en) * 2006-06-08 2013-08-07 パナソニック株式会社 Discrete filter, sampling mixer and radio apparatus

Also Published As

Publication number Publication date
JPS6252968B2 (en) 1987-11-09

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