CA951445A - Combined voice frequency transmission and dc signaling circuit - Google Patents

Combined voice frequency transmission and dc signaling circuit

Info

Publication number
CA951445A
CA951445A CA146,494,A CA146494A CA951445A CA 951445 A CA951445 A CA 951445A CA 146494 A CA146494 A CA 146494A CA 951445 A CA951445 A CA 951445A
Authority
CA
Canada
Prior art keywords
frequency transmission
voice frequency
signaling circuit
combined voice
combined
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
CA146,494,A
Other languages
English (en)
Other versions
CA146494S (en
Inventor
Russell W. Collins
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Application granted granted Critical
Publication of CA951445A publication Critical patent/CA951445A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/30—Reducing interference caused by unbalanced currents in a normally balanced line
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
CA146,494,A 1971-12-27 1972-07-06 Combined voice frequency transmission and dc signaling circuit Expired CA951445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21236471A 1971-12-27 1971-12-27

Publications (1)

Publication Number Publication Date
CA951445A true CA951445A (en) 1974-07-16

Family

ID=22790695

Family Applications (1)

Application Number Title Priority Date Filing Date
CA146,494,A Expired CA951445A (en) 1971-12-27 1972-07-06 Combined voice frequency transmission and dc signaling circuit

Country Status (11)

Country Link
US (1) US3731234A (fr)
JP (1) JPS538442B2 (fr)
AU (1) AU471232B2 (fr)
BE (1) BE793240A (fr)
CA (1) CA951445A (fr)
DE (1) DE2262237C3 (fr)
FR (1) FR2167103A5 (fr)
GB (1) GB1360364A (fr)
IT (1) IT976152B (fr)
NL (1) NL7217546A (fr)
SE (1) SE376136B (fr)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL167816C (nl) * 1974-11-07 1982-01-18 Philips Nv Hoogfrequente signaaloverdrachtsinrichting.
NL7810504A (nl) * 1978-10-20 1980-04-22 Philips Nv Voedingsbrug voor een abonneestroomloop.
US4766402A (en) * 1987-08-06 1988-08-23 3Com Corporation Apparatus for matching unbalanced R. F. baseband signals to balanced signals on a twisted two-wire line
US4888675A (en) * 1987-08-26 1989-12-19 Harris Corporation Switching power supply filter
US5113159A (en) * 1990-02-22 1992-05-12 At&T Bell Laboratories Communications transmission system including facilities for suppressing electromagnetic interference
US5321372A (en) * 1993-01-08 1994-06-14 Synoptics Communications, Inc. Apparatus and method for terminating cables to minimize emissions and susceptibility
DE4429452A1 (de) * 1994-08-19 1996-02-22 Urenco Deutschland Gmbh Optisch stabiler Laserresonator
DE19640172A1 (de) * 1996-09-28 1998-04-23 Daimler Benz Ag Übertrager-Leistungskopplung
US6097262A (en) * 1998-04-27 2000-08-01 Nortel Networks Corporation Transmission line impedance matching apparatus
NZ511144A (en) * 2001-04-12 2004-01-30 Invensys Energy Systems Nz Ltd Low output noise switched mode power supply
WO2003103091A2 (fr) * 2002-05-31 2003-12-11 Polyphaser Corporation Circuit de derivation de surtensions et d'impulsions transitoires
US6765811B1 (en) * 2003-06-17 2004-07-20 Arima Computer Corporation Method in the design for a power supply for suppressing noise and signal interference in equipment
US7554423B2 (en) * 2006-10-24 2009-06-30 Virginia Tech Intellectual Properties, Inc. Cancellation of inductor winding capacitance
US8027136B2 (en) * 2007-10-18 2011-09-27 Transtector Systems, Inc. Surge suppression device having one or more rings
CN101836341B (zh) * 2007-10-30 2013-07-03 特兰斯泰克塔系统公司 用于传递dc和rf信号的浪涌保护电路
US8599528B2 (en) * 2008-05-19 2013-12-03 Transtector Systems, Inc. DC and RF pass broadband surge suppressor
CN102742101A (zh) * 2009-10-02 2012-10-17 特兰斯泰克塔系统公司 带有非线性保护装置的rf共轴浪涌保护器
US8400760B2 (en) * 2009-12-28 2013-03-19 Transtector Systems, Inc. Power distribution device
WO2011119723A2 (fr) * 2010-03-26 2011-09-29 Transtector Systems, Inc. Dispositif de protection contre les surtensions ethernet
US20110271802A1 (en) 2010-05-04 2011-11-10 Edward Honig Double handle tool
US8441795B2 (en) 2010-05-04 2013-05-14 Transtector Systems, Inc. High power band pass RF filter having a gas tube for surge suppression
WO2011143320A2 (fr) 2010-05-11 2011-11-17 Transtector Systems, Inc. Protecteur rf laissant passer le continu et muni d'un module limiteur de surcharge
US8611062B2 (en) 2010-05-13 2013-12-17 Transtector Systems, Inc. Surge current sensor and surge protection system including the same
WO2011150087A2 (fr) 2010-05-26 2011-12-01 Transtector Systems, Inc. Dispositifs coaxiaux rf de filtrage d'ordre zéro
US8730637B2 (en) 2010-12-17 2014-05-20 Transtector Systems, Inc. Surge protection devices that fail as an open circuit
WO2013120101A1 (fr) 2012-02-10 2013-08-15 Transtector Systems, Inc. Circuit suppresseur ou de protection contre les surtensions à tension résiduelle transitoire réduite
US9048662B2 (en) 2012-03-19 2015-06-02 Transtector Systems, Inc. DC power surge protector
US9190837B2 (en) 2012-05-03 2015-11-17 Transtector Systems, Inc. Rigid flex electromagnetic pulse protection device
US9124093B2 (en) 2012-09-21 2015-09-01 Transtector Systems, Inc. Rail surge voltage protector with fail disconnect
US10129993B2 (en) 2015-06-09 2018-11-13 Transtector Systems, Inc. Sealed enclosure for protecting electronics
US9924609B2 (en) 2015-07-24 2018-03-20 Transtector Systems, Inc. Modular protection cabinet with flexible backplane
US10356928B2 (en) 2015-07-24 2019-07-16 Transtector Systems, Inc. Modular protection cabinet with flexible backplane
US10588236B2 (en) 2015-07-24 2020-03-10 Transtector Systems, Inc. Modular protection cabinet with flexible backplane
WO2017075286A1 (fr) 2015-10-27 2017-05-04 Transtector Systems, Inc. Parasurtenseur radiofréquence avec forme de cavité piston-vérin adaptée
US9991697B1 (en) 2016-12-06 2018-06-05 Transtector Systems, Inc. Fail open or fail short surge protector

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1942488A (en) * 1931-09-16 1934-01-09 Bell Telephone Labor Inc Electric wave filter
GB413656A (en) * 1932-11-12 1934-07-12 Edouard Jean Aubort Improvements in and relating to the protection of electrical communication lines from interference
US2026308A (en) * 1933-12-21 1935-12-31 Bell Telephone Labor Inc Balanced inductance device
NL46503C (fr) * 1936-09-26
BE442075A (fr) * 1940-01-18
BE442706A (fr) * 1941-01-03
US2272452A (en) * 1941-05-08 1942-02-10 Bell Telephone Labor Inc Transformer
NL62888C (fr) * 1944-04-13
US2934721A (en) * 1956-11-05 1960-04-26 Collins Radio Co Unbalanced to balanced network means
US3223920A (en) * 1961-01-09 1965-12-14 Sasaki Shiro Noise suppressing transformer
US3551858A (en) * 1967-06-14 1970-12-29 Ibm High current feed-through filter system

Also Published As

Publication number Publication date
GB1360364A (en) 1974-07-17
FR2167103A5 (fr) 1973-08-17
IT976152B (it) 1974-08-20
NL7217546A (fr) 1973-06-29
JPS4874709A (fr) 1973-10-08
DE2262237A1 (de) 1973-07-12
JPS538442B2 (fr) 1978-03-29
BE793240A (fr) 1973-04-16
US3731234A (en) 1973-05-01
AU5039772A (en) 1974-06-27
SE376136B (fr) 1975-05-05
AU471232B2 (en) 1974-06-27
DE2262237C3 (de) 1974-07-11
DE2262237B2 (de) 1973-12-20

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