JPS6041360A - 拡声会議電話装置 - Google Patents

拡声会議電話装置

Info

Publication number
JPS6041360A
JPS6041360A JP2307584A JP2307584A JPS6041360A JP S6041360 A JPS6041360 A JP S6041360A JP 2307584 A JP2307584 A JP 2307584A JP 2307584 A JP2307584 A JP 2307584A JP S6041360 A JPS6041360 A JP S6041360A
Authority
JP
Japan
Prior art keywords
amplifier
output
conference
unit
units
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
JP2307584A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0427746B2 (https=
Inventor
Yozo Sudo
須藤　洋三
Hiroyuki Mori
宏之 森
Atsuya Murai
村井　厚也
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
Original Assignee
Fujitsu 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 filed Critical Fujitsu Ltd
Priority to JP2307584A priority Critical patent/JPS6041360A/ja
Publication of JPS6041360A publication Critical patent/JPS6041360A/ja
Publication of JPH0427746B2 publication Critical patent/JPH0427746B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
JP2307584A 1984-02-10 1984-02-10 拡声会議電話装置 Granted JPS6041360A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2307584A JPS6041360A (ja) 1984-02-10 1984-02-10 拡声会議電話装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2307584A JPS6041360A (ja) 1984-02-10 1984-02-10 拡声会議電話装置

Publications (2)

Publication Number Publication Date
JPS6041360A true JPS6041360A (ja) 1985-03-05
JPH0427746B2 JPH0427746B2 (https=) 1992-05-12

Family

ID=12100279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2307584A Granted JPS6041360A (ja) 1984-02-10 1984-02-10 拡声会議電話装置

Country Status (1)

Country Link
JP (1) JPS6041360A (https=)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5639667A (en) * 1979-09-08 1981-04-15 Nec Corp Directional transmission-reception unit
JPS56128062A (en) * 1980-03-13 1981-10-07 Nec Corp Branch and coupling amplifier circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5639667A (en) * 1979-09-08 1981-04-15 Nec Corp Directional transmission-reception unit
JPS56128062A (en) * 1980-03-13 1981-10-07 Nec Corp Branch and coupling amplifier circuit

Also Published As

Publication number Publication date
JPH0427746B2 (https=) 1992-05-12

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