JPS6340061B2 - - Google Patents

Info

Publication number
JPS6340061B2
JPS6340061B2 JP57161307A JP16130782A JPS6340061B2 JP S6340061 B2 JPS6340061 B2 JP S6340061B2 JP 57161307 A JP57161307 A JP 57161307A JP 16130782 A JP16130782 A JP 16130782A JP S6340061 B2 JPS6340061 B2 JP S6340061B2
Authority
JP
Japan
Prior art keywords
transmitting
receiving
level signal
circuit
loudspeaker telephone
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.)
Expired
Application number
JP57161307A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5951646A (ja
Inventor
Yozo Sudo
Hiroyuki Mori
Masaya Iguchi
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 JP16130782A priority Critical patent/JPS5951646A/ja
Publication of JPS5951646A publication Critical patent/JPS5951646A/ja
Publication of JPS6340061B2 publication Critical patent/JPS6340061B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
JP16130782A 1982-09-16 1982-09-16 拡声電話装置 Granted JPS5951646A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16130782A JPS5951646A (ja) 1982-09-16 1982-09-16 拡声電話装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16130782A JPS5951646A (ja) 1982-09-16 1982-09-16 拡声電話装置

Publications (2)

Publication Number Publication Date
JPS5951646A JPS5951646A (ja) 1984-03-26
JPS6340061B2 true JPS6340061B2 (US07368563-20080506-C00056.png) 1988-08-09

Family

ID=15732612

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16130782A Granted JPS5951646A (ja) 1982-09-16 1982-09-16 拡声電話装置

Country Status (1)

Country Link
JP (1) JPS5951646A (US07368563-20080506-C00056.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0461963U (US07368563-20080506-C00056.png) * 1990-10-06 1992-05-27

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148452A (en) * 1981-03-11 1982-09-13 Yuniden Kk Control system for transmitting and receiving line of hand-free telephone set

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57148452A (en) * 1981-03-11 1982-09-13 Yuniden Kk Control system for transmitting and receiving line of hand-free telephone set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0461963U (US07368563-20080506-C00056.png) * 1990-10-06 1992-05-27

Also Published As

Publication number Publication date
JPS5951646A (ja) 1984-03-26

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