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BR7906214A - Dispositivo de tratamento dos sinais vocais de modulacao e emissor comportando um tal dispositivo - Google Patents

Dispositivo de tratamento dos sinais vocais de modulacao e emissor comportando um tal dispositivo

Info

Publication number
BR7906214A
BR7906214A BR7906214A BR7906214A BR7906214A BR 7906214 A BR7906214 A BR 7906214A BR 7906214 A BR7906214 A BR 7906214A BR 7906214 A BR7906214 A BR 7906214A BR 7906214 A BR7906214 A BR 7906214A
Authority
BR
Brazil
Prior art keywords
modulation
treatment
vocal signals
transmitter behavior
transmitter
Prior art date
Application number
BR7906214A
Other languages
English (en)
Inventor
Sadou Jean Claude Ben
Original Assignee
Thomson Csf
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 filed Critical Thomson Csf
Publication of BR7906214A publication Critical patent/BR7906214A/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/34—Muting amplifier when no signal is present or when only weak signals are present, or caused by the presence of noise signals, e.g. squelch systems
    • H03G3/345—Muting during a short period of time when noise pulses are detected, i.e. blanking
BR7906214A 1978-09-29 1979-09-27 Dispositivo de tratamento dos sinais vocais de modulacao e emissor comportando um tal dispositivo BR7906214A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7827922A FR2437744A1 (fr) 1978-09-29 1978-09-29 Dispositif de traitement des signaux vocaux de modulation et emetteur comportant un tel dispositif

Publications (1)

Publication Number Publication Date
BR7906214A true BR7906214A (pt) 1980-07-15

Family

ID=9213184

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7906214A BR7906214A (pt) 1978-09-29 1979-09-27 Dispositivo de tratamento dos sinais vocais de modulacao e emissor comportando um tal dispositivo

Country Status (8)

Country Link
US (1) US4286116A (pt)
EP (1) EP0010022A1 (pt)
JP (1) JPS5548799A (pt)
AR (1) AR219824A1 (pt)
AU (1) AU5106379A (pt)
BR (1) BR7906214A (pt)
CA (1) CA1160574A (pt)
FR (1) FR2437744A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL84948A0 (en) * 1987-12-25 1988-06-30 D S P Group Israel Ltd Noise reduction system
US5220610A (en) * 1990-05-28 1993-06-15 Matsushita Electric Industrial Co., Ltd. Speech signal processing apparatus for extracting a speech signal from a noisy speech signal
JPH07281689A (ja) * 1994-04-08 1995-10-27 Matsushita Electric Ind Co Ltd 音声信号伝送装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126449A (en) * 1964-03-24 Shirman
GB1427029A (en) * 1972-12-14 1976-03-03 Cunard Steam Ship Radio receiving apparatus
US3872250A (en) * 1973-02-28 1975-03-18 David C Coulter Method and system for speech compression
US3902123A (en) * 1973-11-30 1975-08-26 Cincinnati Electronics Corp Digital circuit for determining if signal source consists primarily of noise or contains information
US3947636A (en) * 1974-08-12 1976-03-30 Edgar Albert D Transient noise filter employing crosscorrelation to detect noise and autocorrelation to replace the noisey segment
US3952158A (en) * 1974-08-26 1976-04-20 Kyle Gordon L Ear protection and hearing device
DE2601940A1 (de) * 1976-01-20 1977-07-21 Ulrich Kraus Schaltungsanordnung fuer regelverstaerker
US4071695A (en) * 1976-08-12 1978-01-31 Bell Telephone Laboratories, Incorporated Speech signal amplitude equalizer
US4143325A (en) * 1976-08-20 1979-03-06 Kahn Leonard R Constant amplitude interference squelch system
US4143333A (en) * 1977-05-16 1979-03-06 David P. Misunas Impulse noise removing apparatus

Also Published As

Publication number Publication date
AU5106379A (en) 1981-04-02
AR219824A1 (es) 1980-09-15
FR2437744B1 (pt) 1981-08-14
FR2437744A1 (fr) 1980-04-25
EP0010022A1 (fr) 1980-04-16
JPS5548799A (en) 1980-04-08
US4286116A (en) 1981-08-25
CA1160574A (en) 1984-01-17

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