CH248972A - Electrical signal transmission system with means for at least approximately eliminating echo signals. - Google Patents

Electrical signal transmission system with means for at least approximately eliminating echo signals.

Info

Publication number
CH248972A
CH248972A CH248972DA CH248972A CH 248972 A CH248972 A CH 248972A CH 248972D A CH248972D A CH 248972DA CH 248972 A CH248972 A CH 248972A
Authority
CH
Switzerland
Prior art keywords
electrical signal
signal transmission
transmission system
echo signals
eliminating echo
Prior art date
Application number
Other languages
German (de)
Inventor
Bell Telephone Manufac Anonyme
Original Assignee
Bell Telephone Mfg
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 Bell Telephone Mfg filed Critical Bell Telephone Mfg
Publication of CH248972A publication Critical patent/CH248972A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • 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
    • H03H7/30—Time-delay networks
    • H03H7/32—Time-delay networks with lumped inductance and capacitance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/12—Frequency diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
CH248972D 1952-10-17 1939-01-25 Electrical signal transmission system with means for at least approximately eliminating echo signals. CH248972A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR63409T 1952-10-17

Publications (1)

Publication Number Publication Date
CH248972A true CH248972A (en) 1947-05-31

Family

ID=8696659

Family Applications (1)

Application Number Title Priority Date Filing Date
CH248972D CH248972A (en) 1952-10-17 1939-01-25 Electrical signal transmission system with means for at least approximately eliminating echo signals.

Country Status (6)

Country Link
US (1) US2236134A (en)
BE (1) BE432307A (en)
CH (1) CH248972A (en)
FR (2) FR842357A (en)
GB (1) GB523434A (en)
NL (1) NL69923C (en)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563245A (en) * 1944-05-12 1951-08-07 Cossor Ltd A C Voltage combining circuits
BE461981A (en) * 1944-12-23
BE482153A (en) * 1945-04-09
US2537090A (en) * 1945-08-06 1951-01-09 Riebman Leon System for maintaining maximum pulse definition on high q networks
US2556713A (en) * 1946-05-16 1951-06-12 Stewart Warner Corp Electronic control circuit
BE475554A (en) * 1946-08-23
US2553572A (en) * 1947-11-10 1951-05-22 Int Standard Electric Corp Cross talk reduction in pulse multiplex receiver systems
US2565486A (en) * 1947-11-10 1951-08-28 Int Standard Electric Corp Pulse duration separation system
US2552160A (en) * 1947-11-14 1951-05-08 Gen Electric Co Ltd Electrical network for the suppression of echoes and the like in electrical signalingsystems
US2703364A (en) * 1948-10-18 1955-03-01 Birnbaum Milton Filter system
US2579285A (en) * 1949-08-13 1951-12-18 Bell Telephone Labor Inc Transmission line distortion corrector
US2645712A (en) * 1949-12-01 1953-07-14 Rca Corp Reading circuit for storage tubes
US2654835A (en) * 1950-01-30 1953-10-06 Lightning & Transients Res Ins Apparatus for static pulse rejection
US2728911A (en) * 1950-04-11 1955-12-27 Cutler Phil Frequency selective device
US2701274A (en) * 1950-06-29 1955-02-01 Bell Telephone Labor Inc Signal predicting apparatus
US2719955A (en) * 1952-01-02 1955-10-04 Du Mont Allen B Lab Inc Transmission system
US2800584A (en) * 1952-02-28 1957-07-23 Richard F Blake Pulse position decoder
US2755459A (en) * 1952-03-29 1956-07-17 Bell Telephone Labor Inc Code translator
DE1004667B (en) * 1952-03-29 1957-03-21 Iapatelholdia Patentverwertung Device for compensating for distortions occurring in a transmission system
US2874279A (en) * 1952-08-06 1959-02-17 Itt Pulse selector circuit
US2776410A (en) * 1953-03-26 1957-01-01 Radio Patents Company Means for and method of compensating signal distortion
US2775698A (en) * 1953-04-10 1956-12-25 Persa R Bell Multichannel pulse analyzer
US2871292A (en) * 1953-10-12 1959-01-27 Esther Marion Armstrong Noise reduction in phase shift modulation
US2915601A (en) * 1955-05-24 1959-12-01 Raytheon Co Phase distortion controls
GB833454A (en) * 1955-06-13 1960-04-27 Kienzle Apparate Gmbh Process and apparatus for generating series of electrical pulses
US3105955A (en) * 1956-03-28 1963-10-01 Sperry Rand Corp Error checking device
US2982853A (en) * 1956-07-02 1961-05-02 Research Corp Anti-multipath receiving system
GB959316A (en) * 1961-03-14 1964-05-27 Standard Telephones Cables Ltd Improvements in or relating to signal transmission apparatus
US3323080A (en) * 1964-08-24 1967-05-30 Northern Electric Co Fine attenuator and phase shifter
US3569845A (en) * 1967-02-02 1971-03-09 Trw Inc Wide band frequency discriminator utilizing a constant amplitude equalizer network
US3434343A (en) * 1967-04-03 1969-03-25 Blh Electronics Low frequency damping circuit for strain gage transducers
US3492579A (en) * 1967-11-27 1970-01-27 Automatic Elect Lab Fm system with pilot signal to measure group delay
US3492583A (en) * 1968-03-06 1970-01-27 Automatic Elect Lab Fm system with pilot signal to measure group delay
US3593041A (en) * 1968-09-27 1971-07-13 Rca Corp Differential phase distortion compensator for color television equipment
US3996419A (en) * 1975-05-27 1976-12-07 Westinghouse Electric Corporation Technique for minimizing multi-path distortion effects in video transmission
US4128848A (en) * 1976-10-22 1978-12-05 Hitachi, Ltd. Automatic ghost-suppression system
FR2525050B1 (en) * 1982-04-08 1986-04-04 Jeumont Schneider METHOD AND DEVICE FOR TRANSMITTING SIGNALS ON A LINK EQUIPPED WITH REPEATER STATIONS
JPH06779B2 (en) * 1985-06-10 1994-01-05 武田薬品工業株式会社 Thiazolidione derivative and pharmaceutical composition comprising the same
EP0212839B2 (en) * 1985-07-16 1994-10-19 Matsushita Electric Industrial Co., Ltd. Ghost cancelling reference signal transmission/reception system

Also Published As

Publication number Publication date
US2236134A (en) 1941-03-25
FR63409E (en) 1955-09-13
BE432307A (en)
GB523434A (en) 1940-07-15
FR842357A (en) 1939-06-12
NL69923C (en)

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