JPS6135661A - 電話機回路 - Google Patents

電話機回路

Info

Publication number
JPS6135661A
JPS6135661A JP15815684A JP15815684A JPS6135661A JP S6135661 A JPS6135661 A JP S6135661A JP 15815684 A JP15815684 A JP 15815684A JP 15815684 A JP15815684 A JP 15815684A JP S6135661 A JPS6135661 A JP S6135661A
Authority
JP
Japan
Prior art keywords
voltage
current
amplifier
circuit
constant
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
JP15815684A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0342825B2 (OSRAM
Inventor
Yasuo Shirai
康夫 白井
Koji Nishio
西尾　晃司
Hideyuki Seki
秀行 関
Chiharu Ozawa
小沢　千春
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
Taiko Electric Works Ltd
Original Assignee
Toshiba Corp
Taiko Electric Works 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, Taiko Electric Works Ltd filed Critical Toshiba Corp
Priority to JP15815684A priority Critical patent/JPS6135661A/ja
Publication of JPS6135661A publication Critical patent/JPS6135661A/ja
Publication of JPH0342825B2 publication Critical patent/JPH0342825B2/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
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6025—Substation equipment, e.g. for use by subscribers including speech amplifiers implemented as integrated speech networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP15815684A 1984-07-28 1984-07-28 電話機回路 Granted JPS6135661A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15815684A JPS6135661A (ja) 1984-07-28 1984-07-28 電話機回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15815684A JPS6135661A (ja) 1984-07-28 1984-07-28 電話機回路

Publications (2)

Publication Number Publication Date
JPS6135661A true JPS6135661A (ja) 1986-02-20
JPH0342825B2 JPH0342825B2 (OSRAM) 1991-06-28

Family

ID=15665486

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15815684A Granted JPS6135661A (ja) 1984-07-28 1984-07-28 電話機回路

Country Status (1)

Country Link
JP (1) JPS6135661A (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796295A (en) * 1985-10-07 1989-01-03 Motorola, Inc. Telephone circuits
FR2686757A1 (fr) * 1992-01-29 1993-07-30 Sgs Thomson Microelectronics Modulateur du courant d'une ligne telephonique.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494213A (en) * 1978-01-10 1979-07-25 Nec Corp Amplifier for transmitter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494213A (en) * 1978-01-10 1979-07-25 Nec Corp Amplifier for transmitter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796295A (en) * 1985-10-07 1989-01-03 Motorola, Inc. Telephone circuits
FR2686757A1 (fr) * 1992-01-29 1993-07-30 Sgs Thomson Microelectronics Modulateur du courant d'une ligne telephonique.

Also Published As

Publication number Publication date
JPH0342825B2 (OSRAM) 1991-06-28

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