JPS60200677A - 保留音送出機能付電話機回路 - Google Patents

保留音送出機能付電話機回路

Info

Publication number
JPS60200677A
JPS60200677A JP59056170A JP5617084A JPS60200677A JP S60200677 A JPS60200677 A JP S60200677A JP 59056170 A JP59056170 A JP 59056170A JP 5617084 A JP5617084 A JP 5617084A JP S60200677 A JPS60200677 A JP S60200677A
Authority
JP
Japan
Prior art keywords
circuit
hold
call
speaker
amplifier
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
JP59056170A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0357669B2 (enrdf_load_stackoverflow
Inventor
Yutaka Nishino
豊 西野
Akihiro Kobayashi
小林　暁洋
Tadashi Murayama
村山　正
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
Iwatsu Electric Co Ltd
Nippon Telegraph and Telephone Corp
Iwasaki Tsushinki KK
Original Assignee
Toshiba Corp
Iwatsu Electric Co Ltd
Nippon Telegraph and Telephone Corp
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 Toshiba Corp, Iwatsu Electric Co Ltd, Nippon Telegraph and Telephone Corp, Iwasaki Tsushinki KK filed Critical Toshiba Corp
Priority to JP59056170A priority Critical patent/JPS60200677A/ja
Publication of JPS60200677A publication Critical patent/JPS60200677A/ja
Publication of JPH0357669B2 publication Critical patent/JPH0357669B2/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
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
JP59056170A 1984-03-26 1984-03-26 保留音送出機能付電話機回路 Granted JPS60200677A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59056170A JPS60200677A (ja) 1984-03-26 1984-03-26 保留音送出機能付電話機回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59056170A JPS60200677A (ja) 1984-03-26 1984-03-26 保留音送出機能付電話機回路

Publications (2)

Publication Number Publication Date
JPS60200677A true JPS60200677A (ja) 1985-10-11
JPH0357669B2 JPH0357669B2 (enrdf_load_stackoverflow) 1991-09-02

Family

ID=13019621

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59056170A Granted JPS60200677A (ja) 1984-03-26 1984-03-26 保留音送出機能付電話機回路

Country Status (1)

Country Link
JP (1) JPS60200677A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6455115A (en) * 1987-10-09 1989-03-02 Komatsu Zenoa Kk Apparatus for supporting cutter-fixing shaft of mower
JPH0294948A (ja) * 1988-09-30 1990-04-05 Nec Corp 受話回路

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6455115A (en) * 1987-10-09 1989-03-02 Komatsu Zenoa Kk Apparatus for supporting cutter-fixing shaft of mower
JPH0294948A (ja) * 1988-09-30 1990-04-05 Nec Corp 受話回路

Also Published As

Publication number Publication date
JPH0357669B2 (enrdf_load_stackoverflow) 1991-09-02

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