JPS5255415A - Anti-side tone circuit - Google Patents

Anti-side tone circuit

Info

Publication number
JPS5255415A
JPS5255415A JP13112175A JP13112175A JPS5255415A JP S5255415 A JPS5255415 A JP S5255415A JP 13112175 A JP13112175 A JP 13112175A JP 13112175 A JP13112175 A JP 13112175A JP S5255415 A JPS5255415 A JP S5255415A
Authority
JP
Japan
Prior art keywords
input terminal
reception signal
side tone
amplifier
tone circuit
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
JP13112175A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5426446B2 (2
Inventor
Koichi Ooyama
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.)
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
Original Assignee
Iwatsu Electric Co Ltd
Iwasaki Tsushinki KK
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 Iwatsu Electric Co Ltd, Iwasaki Tsushinki KK filed Critical Iwatsu Electric Co Ltd
Priority to JP13112175A priority Critical patent/JPS5255415A/ja
Publication of JPS5255415A publication Critical patent/JPS5255415A/ja
Publication of JPS5426446B2 publication Critical patent/JPS5426446B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits
    • H04M1/585—Anti-side-tone circuits implemented without inductive element

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP13112175A 1975-10-31 1975-10-31 Anti-side tone circuit Granted JPS5255415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13112175A JPS5255415A (en) 1975-10-31 1975-10-31 Anti-side tone circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13112175A JPS5255415A (en) 1975-10-31 1975-10-31 Anti-side tone circuit

Publications (2)

Publication Number Publication Date
JPS5255415A true JPS5255415A (en) 1977-05-06
JPS5426446B2 JPS5426446B2 (2) 1979-09-04

Family

ID=15050466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13112175A Granted JPS5255415A (en) 1975-10-31 1975-10-31 Anti-side tone circuit

Country Status (1)

Country Link
JP (1) JPS5255415A (2)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57109450A (en) * 1980-12-26 1982-07-07 Masao Uchiumi Howling preventing circuit for telephone set callable by loudspeaker
US4414432A (en) * 1981-09-21 1983-11-08 Zenith Radio Corporation Pseudo-full duplex television/telephone loudspeaker system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57109450A (en) * 1980-12-26 1982-07-07 Masao Uchiumi Howling preventing circuit for telephone set callable by loudspeaker
US4414432A (en) * 1981-09-21 1983-11-08 Zenith Radio Corporation Pseudo-full duplex television/telephone loudspeaker system

Also Published As

Publication number Publication date
JPS5426446B2 (2) 1979-09-04

Similar Documents

Publication Publication Date Title
GB1423577A (en) Loudspeaking telephone station circuit
ES422597A1 (es) Aparato para modificar las caracteristicas de transmision de una linea de transmision telefonica o parecida.
JPS5255415A (en) Anti-side tone circuit
JPS5252514A (en) 2-frequency mixer circuit
JPS5323254A (en) Amplifier equipment
JPS57145500A (en) Reverberation sound adder
JPS5245804A (en) Telephone memo recording method
ES8204893A1 (es) Una disposicion amplificadora de senales
JPS5422811A (en) Amplifier
JPS5367305A (en) Receiver circuit
JPS53138261A (en) Integrated circuit device
JPS5325338A (en) Aural amplifier
JPS5436156A (en) Hybrid junction circuit
JPS5298451A (en) Parametric amplifier
JPS5746551A (en) Communication device
JPS5320714A (en) Radio receiver
JPS51113402A (en) Receiving amplification circuit for telephone
JPS54152414A (en) Squelch system of fm mobile radio equipment
GB1350142A (en) Controllable attenuator
JPS5483735A (en) Coupled circuit
JPS5244105A (en) Stereo demodulator circuit
JPS5252613A (en) Sound signal regenerating device
SU1840676A1 (ru) Имитатор подводной лодки
JPS5244106A (en) Multi-frequency signal receiver
JPS5353203A (en) Amplifier