CN2043029U - 可用做声藕合器的电话机 - Google Patents

可用做声藕合器的电话机 Download PDF

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Publication number
CN2043029U
CN2043029U CN88209627U CN88209627U CN2043029U CN 2043029 U CN2043029 U CN 2043029U CN 88209627 U CN88209627 U CN 88209627U CN 88209627 U CN88209627 U CN 88209627U CN 2043029 U CN2043029 U CN 2043029U
Authority
CN
China
Prior art keywords
telephone set
telephone
transmitter
receiver
acoustic coupler
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.)
Withdrawn
Application number
CN88209627U
Other languages
English (en)
Chinese (zh)
Inventor
今川泰希
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.)
Nichihoshiopt Co Ltd
Nissei Opto Co Ltd
Original Assignee
Nichihoshiopt 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 Nichihoshiopt Co Ltd filed Critical Nichihoshiopt Co Ltd
Publication of CN2043029U publication Critical patent/CN2043029U/zh
Withdrawn legal-status Critical Current

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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
    • H04M1/2155—Acoustic coupling

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
CN88209627U 1987-07-09 1988-07-09 可用做声藕合器的电话机 Withdrawn CN2043029U (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP105728/87 1987-07-09
JP1987105728U JPS6411046U (US07642317-20100105-C00010.png) 1987-07-09 1987-07-09

Publications (1)

Publication Number Publication Date
CN2043029U true CN2043029U (zh) 1989-08-16

Family

ID=14415359

Family Applications (1)

Application Number Title Priority Date Filing Date
CN88209627U Withdrawn CN2043029U (zh) 1987-07-09 1988-07-09 可用做声藕合器的电话机

Country Status (4)

Country Link
US (1) US4901345A (US07642317-20100105-C00010.png)
JP (1) JPS6411046U (US07642317-20100105-C00010.png)
CN (1) CN2043029U (US07642317-20100105-C00010.png)
GB (1) GB2206766A (US07642317-20100105-C00010.png)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03120803U (US07642317-20100105-C00010.png) * 1990-03-22 1991-12-11
JPH04296156A (ja) * 1991-03-25 1992-10-20 Tokyo Electric Co Ltd ファクシミリ装置
US5995599A (en) * 1998-08-07 1999-11-30 Pocketscience, Inc. Coupler for an acoustic coupled communications device
DE19853899C2 (de) * 1998-11-23 2001-11-22 Horst Spanyar Vorrichtung zur elektrischen Verbindung eines Handys mit einer Tastatur
GB0124323D0 (en) * 2001-10-10 2001-11-28 Nokia Corp Setting mode of communication
US7747828B2 (en) * 2004-11-17 2010-06-29 Integrated Device Technology, Inc. Systems and methods for monitoring and controlling binary state devices using a memory device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3976840A (en) * 1975-07-14 1976-08-24 Spencer Cleveland Portable securities selector system
GB1507246A (en) * 1976-10-26 1978-04-12 Joannou C Device for graphic communication
JPS6037970B2 (ja) * 1976-11-12 1985-08-29 富士写真フイルム株式会社 磁気記録媒体の製法
JPS5913603A (ja) * 1982-07-10 1984-01-24 Nasa:Kk 塩素及び／又は二酸化塩素発生剤組成物
JPS59100659A (ja) * 1982-11-30 1984-06-09 Sharp Corp ワイヤレスフオン
JPS6065648A (ja) * 1983-09-20 1985-04-15 Matsushita Electric Ind Co Ltd 音響カプラ

Also Published As

Publication number Publication date
GB8816430D0 (en) 1988-08-17
US4901345A (en) 1990-02-13
GB2206766A (en) 1989-01-11
JPS6411046U (US07642317-20100105-C00010.png) 1989-01-20

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C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee