TW380348B - Isolation amplifier with hook switch control - Google Patents

Isolation amplifier with hook switch control Download PDF

Info

Publication number
TW380348B
TW380348B TW087109368A TW87109368A TW380348B TW 380348 B TW380348 B TW 380348B TW 087109368 A TW087109368 A TW 087109368A TW 87109368 A TW87109368 A TW 87109368A TW 380348 B TW380348 B TW 380348B
Authority
TW
Taiwan
Prior art keywords
circuit
amplifier
hook switch
bias
state
Prior art date
Application number
TW087109368A
Other languages
English (en)
Chinese (zh)
Inventor
Michael J Gambuzza
Original Assignee
Cp Clare 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 Cp Clare Corp filed Critical Cp Clare Corp
Application granted granted Critical
Publication of TW380348B publication Critical patent/TW380348B/zh

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Amplifiers (AREA)
  • Optical Communication System (AREA)
TW087109368A 1997-06-12 1998-06-12 Isolation amplifier with hook switch control TW380348B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/873,674 US5946394A (en) 1997-06-12 1997-06-12 Isolation amplifier with hook switch control

Publications (1)

Publication Number Publication Date
TW380348B true TW380348B (en) 2000-01-21

Family

ID=25362110

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087109368A TW380348B (en) 1997-06-12 1998-06-12 Isolation amplifier with hook switch control

Country Status (6)

Country Link
US (1) US5946394A (enExample)
EP (1) EP1002411B1 (enExample)
JP (1) JP4564109B2 (enExample)
AU (1) AU7838498A (enExample)
TW (1) TW380348B (enExample)
WO (1) WO1998057476A1 (enExample)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6192125B1 (en) * 1998-07-01 2001-02-20 Texas Instruments Incorporated Optical coupling circuit for a data access arrangement (DAA)
US6681012B1 (en) * 1999-09-23 2004-01-20 Nortel Networks Limited Directional receiver coupling arrangement with frequency selectivity and gain control for DSL
US6376933B1 (en) 1999-12-31 2002-04-23 Honeywell International Inc. Magneto-resistive signal isolator
US7110525B1 (en) 2001-06-25 2006-09-19 Toby Heller Agent training sensitive call routing system
JP4503890B2 (ja) 2001-08-06 2010-07-14 株式会社リコー ファクシミリ装置
US7139391B2 (en) * 2001-10-30 2006-11-21 Integration Associates, Inc. DAA hook switch
JP2003234623A (ja) * 2002-02-12 2003-08-22 Sharp Corp 受光アンプ回路及びこれを用いた光ピックアップ
US7023979B1 (en) 2002-03-07 2006-04-04 Wai Wu Telephony control system with intelligent call routing
US7372952B1 (en) 2002-03-07 2008-05-13 Wai Wu Telephony control system with intelligent call routing
US7277491B2 (en) * 2002-05-14 2007-10-02 Ess Technology, Inc. Data access arrangement using a high frequency transformer for electrical isolation
US7103175B2 (en) * 2003-01-08 2006-09-05 Vtech Telecommunications Limited Systems and methods for an electronic hook switch for customer premises equipment
US9818136B1 (en) 2003-02-05 2017-11-14 Steven M. Hoffberg System and method for determining contingent relevance
EP1447961A1 (en) * 2003-02-12 2004-08-18 Integration Associates Inc. Hook switch circuit and power circuit for electronic telephone line interface
US7676034B1 (en) 2003-03-07 2010-03-09 Wai Wu Method and system for matching entities in an auction
US8874477B2 (en) 2005-10-04 2014-10-28 Steven Mark Hoffberg Multifactorial optimization system and method
US8300798B1 (en) 2006-04-03 2012-10-30 Wai Wu Intelligent communication routing system and method
CA2896004A1 (en) * 2012-12-21 2014-06-26 Nathaniel J. Kemp Power-efficient optical buffering using optical switch
US9088282B2 (en) * 2013-01-25 2015-07-21 Apple Inc. Proximity sensors with optical and electrical sensing capabilities
WO2016073380A1 (en) 2014-11-03 2016-05-12 Genentech, Inc. Method and biomarkers for predicting efficacy and evaluation of an ox40 agonist treatment

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US3772514A (en) * 1971-11-08 1973-11-13 Capintec Inc Isolation amplifier
US4137428A (en) * 1977-10-27 1979-01-30 Bell Telephone Laboratories, Incorporated Optically actuated bidirectional semiconductor switch
JPS5555655A (en) * 1978-10-20 1980-04-23 Nippon Telegr & Teleph Corp <Ntt> Selection unit for telephone line
US4282604A (en) * 1979-04-04 1981-08-04 Jefferson William T Optical isolation circuit for bidirectional communication lines
US4310725A (en) * 1980-01-17 1982-01-12 Solid State Systems, Inc. Interface for private branch exchange
US4317964A (en) * 1980-07-30 1982-03-02 Bell Telephone Laboratories, Incorporated Off-hook/on-hook status check circuit
FR2548494B1 (fr) * 1983-06-30 1985-10-31 Horlogerie Photograph Fse Ensemble poste telephonique-terminal d'ordinateur a clavier decimal unique et alimentation locale commutable
US4558183A (en) * 1983-10-03 1985-12-10 Cellutron Corporation Opto-coupler interfacing circuit
US4591663A (en) * 1983-11-17 1986-05-27 Trad, Inc. Servo-linearized opto-electronic analog interface
USH118H (en) * 1984-10-11 1986-09-02 At&T Bell Laboratories Synthesized sound telephone alerting means
US4727535A (en) * 1985-04-08 1988-02-23 Rapitech System Inc. Telephone network coupler
US4723267A (en) * 1985-06-17 1988-02-02 Octocom Systems, Inc. Telephone line interface and dialer circuitry for telecommunications equipment
US4742538A (en) * 1985-07-05 1988-05-03 Melita Electronic Labs, Inc. Current source and off-hook detector
US4860345A (en) * 1986-12-22 1989-08-22 Protel, Inc. Telephone system and method operated from central office loop current
AU618651B2 (en) * 1989-02-02 1992-01-02 Alcatel Australia Limited Battery boosted dial memory
US5291545A (en) * 1990-10-02 1994-03-01 Intertex Data Ab Apparatus and method for determining the state of a telephone line
GB9102290D0 (en) * 1991-02-02 1991-03-20 Mixalloy Ltd Production of flat products
US5245654A (en) * 1991-10-10 1993-09-14 Cermetek Microelectronics, Inc. Solid state isolation device using opto-isolators
US5280526C1 (en) * 1992-05-26 2001-05-01 Paradyne Corp Transformer-less hybrid circuit
US5369687A (en) * 1992-12-17 1994-11-29 Practical Peripherals, Inc. Apparatus for electrically isolating a telephone line from a data device
US5734703A (en) * 1993-05-26 1998-03-31 Hitachi Maxell, Ltd. Hybrid circuit and data communication apparatus
ES2142897T3 (es) * 1993-09-30 2000-05-01 Siemens Microelectronics Inc Optoacoplador lineal bidireccional.
US5438210A (en) * 1993-10-22 1995-08-01 Worley; Eugene R. Optical isolation connections using integrated circuit techniques
EP0651541B1 (en) * 1993-10-29 2001-01-10 STMicroelectronics S.r.l. Telephone subscriber circuit with galvanic isolating element for driving the on/off states of a telephone line
DE19503164A1 (de) * 1994-02-04 1995-08-10 Siemens Comp Inc Optisch gekoppelte Datenanschalteanordnung und Gabelschaltung
WO1996005686A1 (en) * 1994-08-10 1996-02-22 Cp Clare Corporation Bilateral switch for modem applications
US5751803A (en) * 1995-11-08 1998-05-12 Shmuel Hershkovit Telephone line coupler
US5600715A (en) * 1996-02-28 1997-02-04 Lucent Technologies Inc. Integrated loop current detector apparatus for a PSTN modem

Also Published As

Publication number Publication date
JP2002504287A (ja) 2002-02-05
US5946394A (en) 1999-08-31
AU7838498A (en) 1998-12-30
EP1002411A4 (en) 2010-07-21
WO1998057476A1 (en) 1998-12-17
EP1002411A1 (en) 2000-05-24
EP1002411B1 (en) 2013-10-23
WO1998057476A8 (en) 1999-04-15
JP4564109B2 (ja) 2010-10-20

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Legal Events

Date Code Title Description
GD4A Issue of patent certificate for granted invention patent
MM4A Annulment or lapse of patent due to non-payment of fees