JPS5296840A - Color television receiver pif surface wave filter - Google Patents

Color television receiver pif surface wave filter

Info

Publication number
JPS5296840A
JPS5296840A JP1280976A JP1280976A JPS5296840A JP S5296840 A JPS5296840 A JP S5296840A JP 1280976 A JP1280976 A JP 1280976A JP 1280976 A JP1280976 A JP 1280976A JP S5296840 A JPS5296840 A JP S5296840A
Authority
JP
Japan
Prior art keywords
pif
television receiver
wave filter
surface wave
color television
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
JP1280976A
Other languages
Japanese (ja)
Other versions
JPS5847089B2 (en
Inventor
Sadao Takahashi
Riichi Kodama
Koji Sato
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
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 filed Critical Toshiba Corp
Priority to JP1280976A priority Critical patent/JPS5847089B2/en
Publication of JPS5296840A publication Critical patent/JPS5296840A/en
Publication of JPS5847089B2 publication Critical patent/JPS5847089B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02881—Means for compensation or elimination of undesirable effects of diffraction of wave beam
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14517—Means for weighting
    • H03H9/1452—Means for weighting by finger overlap length, apodisation

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

PURPOSE:To prevent the occurrence of sprious radiation, by making the length of opening for the output electrode 1.05 to 1.70 times the active maximum length of the input electrode and by setting two trap levels to the specified level.
JP1280976A 1976-02-10 1976-02-10 Color television receiver PIF surface wave filter Expired JPS5847089B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1280976A JPS5847089B2 (en) 1976-02-10 1976-02-10 Color television receiver PIF surface wave filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1280976A JPS5847089B2 (en) 1976-02-10 1976-02-10 Color television receiver PIF surface wave filter

Publications (2)

Publication Number Publication Date
JPS5296840A true JPS5296840A (en) 1977-08-15
JPS5847089B2 JPS5847089B2 (en) 1983-10-20

Family

ID=11815705

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1280976A Expired JPS5847089B2 (en) 1976-02-10 1976-02-10 Color television receiver PIF surface wave filter

Country Status (1)

Country Link
JP (1) JPS5847089B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57127321A (en) * 1981-01-30 1982-08-07 Fujitsu Ltd Surface acoustic wave filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57127321A (en) * 1981-01-30 1982-08-07 Fujitsu Ltd Surface acoustic wave filter
EP0057598A2 (en) * 1981-01-30 1982-08-11 Fujitsu Limited Acoustic surface wave device

Also Published As

Publication number Publication date
JPS5847089B2 (en) 1983-10-20

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