BR7400524A - Aparelho e processo para modificar as caracteristicas de transmissao de uma linha de transmissao telefonica ou semelhante - Google Patents

Aparelho e processo para modificar as caracteristicas de transmissao de uma linha de transmissao telefonica ou semelhante

Info

Publication number
BR7400524A
BR7400524A BR7400524/74A BR52474A BR7400524A BR 7400524 A BR7400524 A BR 7400524A BR 7400524/74 A BR7400524/74 A BR 7400524/74A BR 52474 A BR52474 A BR 52474A BR 7400524 A BR7400524 A BR 7400524A
Authority
BR
Brazil
Prior art keywords
telephone
modify
transmission line
similar
transmission characteristics
Prior art date
Application number
BR7400524/74A
Other languages
English (en)
Inventor
C Chambers
F Kiko
Original Assignee
Lorain Prod 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 Lorain Prod Corp filed Critical Lorain Prod Corp
Publication of BR7400524A publication Critical patent/BR7400524A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/62—Two-way amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Interface Circuits In Exchanges (AREA)
BR7400524/74A 1973-01-26 1974-01-24 Aparelho e processo para modificar as caracteristicas de transmissao de uma linha de transmissao telefonica ou semelhante BR7400524A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00326785A US3818151A (en) 1973-01-26 1973-01-26 Method and apparatus for amplifying signal transmission through transmission lines

Publications (1)

Publication Number Publication Date
BR7400524A true BR7400524A (pt) 1975-12-16

Family

ID=23273712

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7400524/74A BR7400524A (pt) 1973-01-26 1974-01-24 Aparelho e processo para modificar as caracteristicas de transmissao de uma linha de transmissao telefonica ou semelhante

Country Status (14)

Country Link
US (1) US3818151A (pt)
JP (1) JPS49107122A (pt)
AR (1) AR203275A1 (pt)
BE (1) BE810104A (pt)
BR (1) BR7400524A (pt)
CA (1) CA986631A (pt)
DE (1) DE2404103A1 (pt)
ES (1) ES422597A1 (pt)
FR (1) FR2215758B1 (pt)
GB (1) GB1454041A (pt)
IL (1) IL44020A (pt)
IT (1) IT1018618B (pt)
NL (1) NL7401087A (pt)
SE (1) SE397759B (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032726A (en) * 1975-03-20 1977-06-28 Lorain Products Corporation Repeater for transmission lines of differing lengths
US4037066A (en) * 1975-03-20 1977-07-19 Lorain Products Corporation Repeater for transmission lines
US3989907A (en) * 1975-03-20 1976-11-02 Lorain Products Corporation Repeater for transmission lines of differing lengths
US3989906A (en) * 1975-03-20 1976-11-02 Lorain Products Corporation Repeater for transmission lines
US4004102A (en) * 1975-08-08 1977-01-18 Bell Telephone Laboratories, Incorporated Automatic impedance modification of transmission lines
US4192974A (en) * 1978-03-20 1980-03-11 Lorain Products Corporation Multi-section apparatus for improving signal transmission through telephone transmission lines
US4472529A (en) * 1983-01-17 1984-09-18 Uop Inc. Hydrocarbon conversion catalyst and use thereof
GB2137057B (en) * 1983-03-18 1986-07-02 Telspec Ltd Improvements in and relating to signal transmission devices
US5195132B1 (en) * 1990-12-03 1996-03-19 At & T Bell Lab Telephone network speech signal enhancement
US5471527A (en) 1993-12-02 1995-11-28 Dsc Communications Corporation Voice enhancement system and method
US5802164A (en) * 1995-12-22 1998-09-01 At&T Corp Systems and methods for controlling telephone sound enhancement on a per call basis
JP3060993B2 (ja) * 1997-05-15 2000-07-10 日本電気株式会社 オーダワイヤ収容方式
AU3681499A (en) * 1999-06-25 2001-01-04 Alcatel A bidirectional loss/slope equalizer arrangement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706862A (en) * 1971-06-28 1972-12-19 Lorain Prod Corp Amplifier circuit for transmission lines

Also Published As

Publication number Publication date
GB1454041A (en) 1976-10-27
AR203275A1 (es) 1975-08-29
IT1018618B (it) 1977-10-20
FR2215758A1 (pt) 1974-08-23
JPS49107122A (pt) 1974-10-11
DE2404103A1 (de) 1974-08-15
IL44020A (en) 1976-09-30
BE810104A (fr) 1974-07-24
FR2215758B1 (pt) 1978-06-02
US3818151A (en) 1974-06-18
NL7401087A (pt) 1974-07-30
ES422597A1 (es) 1976-09-16
AU6453974A (en) 1975-07-17
IL44020A0 (en) 1974-05-16
CA986631A (en) 1976-03-30
SE397759B (sv) 1977-11-14

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