JPS5742242A - Two-wire type bidirectional amplifier system - Google Patents

Two-wire type bidirectional amplifier system

Info

Publication number
JPS5742242A
JPS5742242A JP11795580A JP11795580A JPS5742242A JP S5742242 A JPS5742242 A JP S5742242A JP 11795580 A JP11795580 A JP 11795580A JP 11795580 A JP11795580 A JP 11795580A JP S5742242 A JPS5742242 A JP S5742242A
Authority
JP
Japan
Prior art keywords
amount
circuit
erasion
echo
loss
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
JP11795580A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6223936B2 (enrdf_load_stackoverflow
Inventor
Yoshiji Furuya
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11795580A priority Critical patent/JPS5742242A/ja
Publication of JPS5742242A publication Critical patent/JPS5742242A/ja
Publication of JPS6223936B2 publication Critical patent/JPS6223936B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Amplifiers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP11795580A 1980-08-27 1980-08-27 Two-wire type bidirectional amplifier system Granted JPS5742242A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11795580A JPS5742242A (en) 1980-08-27 1980-08-27 Two-wire type bidirectional amplifier system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11795580A JPS5742242A (en) 1980-08-27 1980-08-27 Two-wire type bidirectional amplifier system

Publications (2)

Publication Number Publication Date
JPS5742242A true JPS5742242A (en) 1982-03-09
JPS6223936B2 JPS6223936B2 (enrdf_load_stackoverflow) 1987-05-26

Family

ID=14724371

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11795580A Granted JPS5742242A (en) 1980-08-27 1980-08-27 Two-wire type bidirectional amplifier system

Country Status (1)

Country Link
JP (1) JPS5742242A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57129542A (en) * 1981-02-04 1982-08-11 Nippon Telegr & Teleph Corp <Ntt> Two-way repeater
JPS59205833A (ja) * 1983-05-09 1984-11-21 Nec Corp 廻り込み信号抑圧装置
JPS6070830A (ja) * 1983-09-28 1985-04-22 Hitachi Ltd 鳴音制御方式
JPS61194958A (ja) * 1985-02-22 1986-08-29 Nippon Telegr & Teleph Corp <Ntt> エコ−キヤンセラ形拡声電話回路
JPS62283722A (ja) * 1985-06-13 1987-12-09 ジ−メンス・アクチエンゲゼルシヤフト 増幅器付伝送回路装置
US4782525A (en) * 1985-11-25 1988-11-01 Northern Telecom Limited Echo cancellation in two-wire transmission path repeaters
US4942314A (en) * 1987-09-18 1990-07-17 Sanyo Electric Co., Ltd. Peak holding circuit for a color television receiver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5742241A (en) * 1980-08-27 1982-03-09 Nec Corp Echo erasion type two-wire bidirectional amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5742241A (en) * 1980-08-27 1982-03-09 Nec Corp Echo erasion type two-wire bidirectional amplifier

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57129542A (en) * 1981-02-04 1982-08-11 Nippon Telegr & Teleph Corp <Ntt> Two-way repeater
JPS59205833A (ja) * 1983-05-09 1984-11-21 Nec Corp 廻り込み信号抑圧装置
JPS6070830A (ja) * 1983-09-28 1985-04-22 Hitachi Ltd 鳴音制御方式
JPS61194958A (ja) * 1985-02-22 1986-08-29 Nippon Telegr & Teleph Corp <Ntt> エコ−キヤンセラ形拡声電話回路
JPS62283722A (ja) * 1985-06-13 1987-12-09 ジ−メンス・アクチエンゲゼルシヤフト 増幅器付伝送回路装置
US4782525A (en) * 1985-11-25 1988-11-01 Northern Telecom Limited Echo cancellation in two-wire transmission path repeaters
US4942314A (en) * 1987-09-18 1990-07-17 Sanyo Electric Co., Ltd. Peak holding circuit for a color television receiver

Also Published As

Publication number Publication date
JPS6223936B2 (enrdf_load_stackoverflow) 1987-05-26

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