JPH0758880A - モデム用炭素マイクロホンインタフェース装置 - Google Patents

モデム用炭素マイクロホンインタフェース装置

Info

Publication number
JPH0758880A
JPH0758880A JP6146799A JP14679994A JPH0758880A JP H0758880 A JPH0758880 A JP H0758880A JP 6146799 A JP6146799 A JP 6146799A JP 14679994 A JP14679994 A JP 14679994A JP H0758880 A JPH0758880 A JP H0758880A
Authority
JP
Japan
Prior art keywords
modem
circuit
line
carbon microphone
impedance
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.)
Pending
Application number
JP6146799A
Other languages
English (en)
Japanese (ja)
Inventor
Steven P Weir
ピー． ウィアー スティーヴン
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.)
Harris Corp
Original Assignee
Harris Corp
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 Harris Corp filed Critical Harris Corp
Publication of JPH0758880A publication Critical patent/JPH0758880A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Function (AREA)
  • Telephone Set Structure (AREA)
JP6146799A 1993-06-30 1994-06-28 モデム用炭素マイクロホンインタフェース装置 Pending JPH0758880A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8351393A 1993-06-30 1993-06-30
US08/083513 1993-06-30

Publications (1)

Publication Number Publication Date
JPH0758880A true JPH0758880A (ja) 1995-03-03

Family

ID=22178817

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6146799A Pending JPH0758880A (ja) 1993-06-30 1994-06-28 モデム用炭素マイクロホンインタフェース装置

Country Status (7)

Country Link
US (1) US5559869A (OSRAM)
JP (1) JPH0758880A (OSRAM)
KR (1) KR950001464A (OSRAM)
CN (1) CN1064502C (OSRAM)
GB (1) GB2287376B (OSRAM)
MY (1) MY110609A (OSRAM)
TW (1) TW240366B (OSRAM)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007531159A (ja) * 2004-03-29 2007-11-01 ローズマウント インコーポレイテッド Ｃａｎ出力を絶縁した２線式トランスミッタ

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29605537U1 (de) * 1996-03-14 1997-07-10 Elmeg Gmbh Kommunikationstechnik, 31228 Peine Telekommunikationsanlage

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4367374A (en) * 1981-02-17 1983-01-04 Novation, Inc. Modem telephone interface circuit
GB8528843D0 (en) * 1985-11-22 1985-12-24 British Telecomm Codec
DE3718742A1 (de) * 1987-06-04 1988-12-22 Rutenbeck Wilhelm Gmbh & Co Elektrische schaltungsanordnung fuer die ankopplung von telekommunikationsfunktionseinheiten an das fernsprechnetz
US4825465A (en) * 1987-12-10 1989-04-25 Telecommunication Concepts, Inc. Exclusionary device for coupling plural telephonic devices to a single central office trunk
US4864567A (en) * 1988-05-04 1989-09-05 The United States Of America As Represented By The Secretary Of The Navy High throughput data communication system
US4907267A (en) * 1988-06-16 1990-03-06 Gutzmer Howard A Modem interface device
KR910009672B1 (ko) * 1988-10-14 1991-11-25 삼성전자 주식회사 모뎀의 송출신호 레벨 자동 보상회로 및 방법
US5001746A (en) * 1988-10-29 1991-03-19 Shirohato Yakuhin Co., Ltd. Transmission control unit
JPH03232357A (ja) * 1989-12-27 1991-10-16 Ricoh Denshi Co Ltd 音響カプラ装置の接続装置
US5185789A (en) * 1990-05-30 1993-02-09 Plantronics, Inc. Universal telephone handset interface
US5133006A (en) * 1990-10-31 1992-07-21 Seiscor Technologies Inc. Combination interface circuit for coupling a digital loop carrier telephone system
DE69026096T2 (de) * 1990-12-05 1996-10-02 International Business Machines Corp., Armonk, N.Y. Kopplungseinrichtung zum Anschluss einer Datenübertragungsanschlu-einrichtung an das öffentliche Fernsprechwahlnetz, die eine lokale Versorgungsschaltung zur Speisung eines lokalen Fernsprechers beinhaltet sowie eine Datenübertragungsanschlu-einrichtung und eine Arbeitsstation mit einer solchen Kopplungseinrichtung
DE69332602T2 (de) * 1992-10-14 2003-11-13 Sagem S.A., Paris Modem enthaltender Fernsprecher

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007531159A (ja) * 2004-03-29 2007-11-01 ローズマウント インコーポレイテッド Ｃａｎ出力を絶縁した２線式トランスミッタ
JP4926041B2 (ja) * 2004-03-29 2012-05-09 ローズマウント インコーポレイテッド Ｃａｎ出力を絶縁した２線式トランスミッタ

Also Published As

Publication number Publication date
CN1101473A (zh) 1995-04-12
CN1064502C (zh) 2001-04-11
US5559869A (en) 1996-09-24
GB2287376A (en) 1995-09-13
MY110609A (en) 1998-08-29
KR950001464A (ko) 1995-01-03
TW240366B (OSRAM) 1995-02-11
GB9412973D0 (en) 1994-08-17
GB2287376B (en) 1997-06-04

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