JPS6167356A - 拡声電話装置 - Google Patents

拡声電話装置

Info

Publication number
JPS6167356A
JPS6167356A JP59189912A JP18991284A JPS6167356A JP S6167356 A JPS6167356 A JP S6167356A JP 59189912 A JP59189912 A JP 59189912A JP 18991284 A JP18991284 A JP 18991284A JP S6167356 A JPS6167356 A JP S6167356A
Authority
JP
Japan
Prior art keywords
attenuation
circuit
transmission
handset
reception
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
JP59189912A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0242266B2 (enrdf_load_stackoverflow
Inventor
Shinichi Sekiguchi
慎一 関口
Kenzaburo Nakajima
中島　健三郎
Hiroyuki Fukuda
福田　博幸
Toshiro Sanhongi
三本木　俊郎
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP59189912A priority Critical patent/JPS6167356A/ja
Publication of JPS6167356A publication Critical patent/JPS6167356A/ja
Publication of JPH0242266B2 publication Critical patent/JPH0242266B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/10—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP59189912A 1984-09-11 1984-09-11 拡声電話装置 Granted JPS6167356A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59189912A JPS6167356A (ja) 1984-09-11 1984-09-11 拡声電話装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59189912A JPS6167356A (ja) 1984-09-11 1984-09-11 拡声電話装置

Publications (2)

Publication Number Publication Date
JPS6167356A true JPS6167356A (ja) 1986-04-07
JPH0242266B2 JPH0242266B2 (enrdf_load_stackoverflow) 1990-09-21

Family

ID=16249287

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59189912A Granted JPS6167356A (ja) 1984-09-11 1984-09-11 拡声電話装置

Country Status (1)

Country Link
JP (1) JPS6167356A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0242266B2 (enrdf_load_stackoverflow) 1990-09-21

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