JPS5899061A - 同相雑音抑圧回路 - Google Patents

同相雑音抑圧回路

Info

Publication number
JPS5899061A
JPS5899061A JP19695081A JP19695081A JPS5899061A JP S5899061 A JPS5899061 A JP S5899061A JP 19695081 A JP19695081 A JP 19695081A JP 19695081 A JP19695081 A JP 19695081A JP S5899061 A JPS5899061 A JP S5899061A
Authority
JP
Japan
Prior art keywords
pair
circuit
mode noise
current mirror
current
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
JP19695081A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0370429B2 (enExample
Inventor
Toshiyuki Tawara
俊幸 田原
Mutsuo Kataoka
片岡　睦雄
Toshio Hayashi
林　敏夫
Isamu Ueki
植木　勇
Junjiro Kitano
北野　純二郎
Kenzo Takada
高田　健三
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
Hitachi Ltd
NEC Corp
Oki Electric Industry Co Ltd
NTT Inc
Original Assignee
Fujitsu Ltd
Hitachi Ltd
NEC Corp
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Nippon 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 Fujitsu Ltd, Hitachi Ltd, NEC Corp, Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd, Nippon Electric Co Ltd filed Critical Fujitsu Ltd
Priority to JP19695081A priority Critical patent/JPS5899061A/ja
Publication of JPS5899061A publication Critical patent/JPS5899061A/ja
Publication of JPH0370429B2 publication Critical patent/JPH0370429B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/001—Current supply source at the exchanger providing current to substations
    • H04M19/003—Arrangements for compensation of the DC flux in line transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
JP19695081A 1981-12-09 1981-12-09 同相雑音抑圧回路 Granted JPS5899061A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19695081A JPS5899061A (ja) 1981-12-09 1981-12-09 同相雑音抑圧回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19695081A JPS5899061A (ja) 1981-12-09 1981-12-09 同相雑音抑圧回路

Publications (2)

Publication Number Publication Date
JPS5899061A true JPS5899061A (ja) 1983-06-13
JPH0370429B2 JPH0370429B2 (enExample) 1991-11-07

Family

ID=16366350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19695081A Granted JPS5899061A (ja) 1981-12-09 1981-12-09 同相雑音抑圧回路

Country Status (1)

Country Link
JP (1) JPS5899061A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952087A (en) * 1987-12-15 1990-08-28 Citizen Watch Co., Ltd. Printer for use with continuous form

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5654160A (en) * 1979-10-11 1981-05-14 Oki Electric Ind Co Ltd Interface circuit for subscribing line

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5654160A (en) * 1979-10-11 1981-05-14 Oki Electric Ind Co Ltd Interface circuit for subscribing line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4952087A (en) * 1987-12-15 1990-08-28 Citizen Watch Co., Ltd. Printer for use with continuous form

Also Published As

Publication number Publication date
JPH0370429B2 (enExample) 1991-11-07

Similar Documents

Publication Publication Date Title
JP2734265B2 (ja) エレクトレット・コンデンサ・マイクロフォン用増幅回路
EP0415080A2 (en) Device for converting unbalanced analog electric signals into fully-differential signals
WO1983001163A1 (en) Balanced current multiplier circuit for a subscriber loop interface circuit
JPS6292559A (ja) 電話回路
US6538502B2 (en) High bandwidth switched capacitor input receiver
JPH05267944A (ja) トランス駆動回路
JPS5899061A (ja) 同相雑音抑圧回路
JPH0327141B2 (enExample)
PL131701B1 (en) Differential amplifier
CN100372243C (zh) 双向通信系统
US1779380A (en) Negative impedance circuits
JPS5941627B2 (ja) 加入者線インタ−フエイス回路
JP2659357B2 (ja) ハンドフリー型電話機
JPS6230544B2 (enExample)
JP3260098B2 (ja) Ｂｔｌ増幅装置
JP2934647B2 (ja) データ伝送方法
JPS5947508B2 (ja) 防側音回路
JP2894887B2 (ja) 電話機給電回路
JPS6243998A (ja) 全電子化加入者回路における加入者線終端回路
JPS59110259A (ja) ダイヤル信号送出回路
JPH10322403A (ja) 信号送信回路
JPH0847077A (ja) スピーカ駆動回路
JPH0813152B2 (ja) 加入者回路
JPS59161193A (ja) ２線−４線変換回路
JPS62155692A (ja) 加入者回路