JPH0228942B2 - - Google Patents

Info

Publication number
JPH0228942B2
JPH0228942B2 JP56130620A JP13062081A JPH0228942B2 JP H0228942 B2 JPH0228942 B2 JP H0228942B2 JP 56130620 A JP56130620 A JP 56130620A JP 13062081 A JP13062081 A JP 13062081A JP H0228942 B2 JPH0228942 B2 JP H0228942B2
Authority
JP
Japan
Prior art keywords
telephone
handset
magnetic field
coil
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.)
Expired - Lifetime
Application number
JP56130620A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5831647A (ja
Inventor
Kohei Gomi
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.)
Rion Co Ltd
Original Assignee
Rion 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 Rion Co Ltd filed Critical Rion Co Ltd
Priority to JP13062081A priority Critical patent/JPS5831647A/ja
Publication of JPS5831647A publication Critical patent/JPS5831647A/ja
Publication of JPH0228942B2 publication Critical patent/JPH0228942B2/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
    • H04M1/02—Constructional features of telephone sets
    • H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
    • H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
JP13062081A 1981-08-20 1981-08-20 電話機 Granted JPS5831647A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13062081A JPS5831647A (ja) 1981-08-20 1981-08-20 電話機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13062081A JPS5831647A (ja) 1981-08-20 1981-08-20 電話機

Publications (2)

Publication Number Publication Date
JPS5831647A JPS5831647A (ja) 1983-02-24
JPH0228942B2 true JPH0228942B2 (cs) 1990-06-27

Family

ID=15038579

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13062081A Granted JPS5831647A (ja) 1981-08-20 1981-08-20 電話機

Country Status (1)

Country Link
JP (1) JPS5831647A (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61278247A (ja) * 1985-06-04 1986-12-09 Matsushita Electric Ind Co Ltd ハンドセツト
US6925179B2 (en) 2000-04-07 2005-08-02 New World Sounds, Inc. Method and apparatus for a hearing aid coupling system
US7106874B2 (en) * 2004-07-13 2006-09-12 Motorola, Inc. Method and system for selective coupling of a communication unit to a hearing enhancement device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6336797Y2 (cs) * 1980-09-17 1988-09-29

Also Published As

Publication number Publication date
JPS5831647A (ja) 1983-02-24

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