GB1334912A - Transmission control device for telephone signal transmitters - Google Patents

Transmission control device for telephone signal transmitters

Info

Publication number
GB1334912A
GB1334912A GB4199871A GB4199871A GB1334912A GB 1334912 A GB1334912 A GB 1334912A GB 4199871 A GB4199871 A GB 4199871A GB 4199871 A GB4199871 A GB 4199871A GB 1334912 A GB1334912 A GB 1334912A
Authority
GB
United Kingdom
Prior art keywords
gate
counter
transmission
pulse
signal
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
GB4199871A
Other languages
English (en)
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB1334912A publication Critical patent/GB1334912A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • H03G7/005—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers using discontinuously variable devices, e.g. switch-operated
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/17—Time-division multiplex systems in which the transmission channel allotted to a first user may be taken away and re-allotted to a second user if the first user becomes inactive, e.g. TASI
    • H04J3/175—Speech activity or inactivity detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Time-Division Multiplex Systems (AREA)
GB4199871A 1970-09-17 1971-09-08 Transmission control device for telephone signal transmitters Expired GB1334912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7033735A FR2105703A5 (enExample) 1970-09-17 1970-09-17

Publications (1)

Publication Number Publication Date
GB1334912A true GB1334912A (en) 1973-10-24

Family

ID=9061447

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4199871A Expired GB1334912A (en) 1970-09-17 1971-09-08 Transmission control device for telephone signal transmitters

Country Status (7)

Country Link
BE (1) BE772077A (enExample)
CH (1) CH546521A (enExample)
DE (1) DE2146604A1 (enExample)
FR (1) FR2105703A5 (enExample)
GB (1) GB1334912A (enExample)
IT (1) IT939399B (enExample)
NL (1) NL7112732A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2545301B1 (fr) * 1983-04-29 1986-07-25 Telephonie Ind Commerciale Procede de compression-decompression d'un signal de type vocal

Also Published As

Publication number Publication date
CH546521A (fr) 1974-02-28
BE772077A (fr) 1972-01-17
DE2146604A1 (de) 1972-03-23
FR2105703A5 (enExample) 1972-04-28
IT939399B (it) 1973-02-10
NL7112732A (enExample) 1972-03-21

Similar Documents

Publication Publication Date Title
GB1041496A (en) Improvements in or relating to transmission systems for transmitting pulses
GB1295625A (enExample)
ES8502301A1 (es) Metodo para el accionamiento a distancia de aparatos alejados de un puesto de mando adaptados para tratar senales y para registrarlas.
GB1334912A (en) Transmission control device for telephone signal transmitters
GB1451154A (en) Automatic gain control apparatus
US3603932A (en) Party line stations for selective calling systems
GB1502862A (en) Information transmission systems
GB983255A (en) Improvements in or relating to pulse code modulation systems
GB1499635A (en) Peak level detector circuit
GB844558A (en) Improvements in or relating to time division multiplex transmission systems
US3495176A (en) Ionosphere sounder system
IE802248L (en) Measurement of attenuation factor on signal transmission¹path - especially telephonic transmission
GB1116057A (en) Analog to digital conversion system
GB891959A (en) Improvements in or relating to time assignment speech interpolation systems
GB1503949A (en) Word commencement detector for a data transmission system
GB1390824A (en) Echo-sounding device
GB1017150A (en) Data transmission systems
GB1394077A (en) Multiplexer interval detector
SU607347A1 (ru) Устройство автоматического регулировани остаточного затухани в трактах звукового вещани
GB1247651A (en) Noise discriminating fault apparatus
SU756660A1 (ru) Устройство для приема информации • с подавлением помех 1
GB983185A (en) Pulse code signalling system
GB1096450A (en) Improvements in or relating to data transmission
GB1139077A (en) Apparatus for controlling the entry of information into a storage arrangement
SU708529A1 (ru) Устройство дл контрол телеграфных сигналов

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee