IT1057562B - Ricetrasmettitore con circuito perfezionato a portante aziona ta a voce e di soppressione dell ecc - Google Patents

Ricetrasmettitore con circuito perfezionato a portante aziona ta a voce e di soppressione dell ecc

Info

Publication number
IT1057562B
IT1057562B IT21126/76A IT2112676A IT1057562B IT 1057562 B IT1057562 B IT 1057562B IT 21126/76 A IT21126/76 A IT 21126/76A IT 2112676 A IT2112676 A IT 2112676A IT 1057562 B IT1057562 B IT 1057562B
Authority
IT
Italy
Prior art keywords
voice
ecc
suppression
transceiver
carrier circuit
Prior art date
Application number
IT21126/76A
Other languages
English (en)
Original Assignee
California Microwa E 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 California Microwa E Inc filed Critical California Microwa E Inc
Application granted granted Critical
Publication of IT1057562B publication Critical patent/IT1057562B/it

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
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H04B1/46—Transmit/receive switching by voice-frequency signals; by pilot signals
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Radio Relay Systems (AREA)
  • Transceivers (AREA)
IT21126/76A 1975-03-13 1976-03-01 Ricetrasmettitore con circuito perfezionato a portante aziona ta a voce e di soppressione dell ecc IT1057562B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/558,170 US3942116A (en) 1975-03-13 1975-03-13 Transceiver having improved voice actuated carrier and echo suppression circuit

Publications (1)

Publication Number Publication Date
IT1057562B true IT1057562B (it) 1982-03-30

Family

ID=24228478

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21126/76A IT1057562B (it) 1975-03-13 1976-03-01 Ricetrasmettitore con circuito perfezionato a portante aziona ta a voce e di soppressione dell ecc

Country Status (8)

Country Link
US (1) US3942116A (it)
BR (1) BR7601552A (it)
CA (1) CA1054680A (it)
DE (1) DE2616791A1 (it)
FR (1) FR2304227A1 (it)
GB (1) GB1497957A (it)
IT (1) IT1057562B (it)
NL (1) NL7602665A (it)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063220A (en) * 1975-03-31 1977-12-13 Xerox Corporation Multipoint data communication system with collision detection
FR2363247A1 (fr) * 1976-08-24 1978-03-24 Cit Alcatel Equipement terminal pour un systeme multiplex telephonique a courants porteurs
JPS6050092B2 (ja) * 1977-11-08 1985-11-06 ケイディディ株式会社 適応制御型反響阻止装置
US4165449A (en) * 1978-01-03 1979-08-21 Storage Technology Corporation Echo suppressor circuit
FR2451676A1 (fr) * 1979-03-12 1980-10-10 Soumagne Joel Detecteur d'echo notamment pour systeme de communication a interpolation de parole
US4282512A (en) * 1980-02-04 1981-08-04 Xerox Corporation Data communication system
US4380761A (en) * 1980-02-04 1983-04-19 Xerox Corporation Digital phase decoder with collision detection
DE3301351A1 (de) * 1983-01-18 1984-07-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verfahren zur digitalen sprachuebertragung ueber einen einzigen funkkanal
GB2137055B (en) * 1983-03-12 1986-11-12 Marconi Avionics Voice communication system
GB2139054B (en) * 1983-04-22 1986-09-24 Gen Electric Co Plc Loudspeaking telephone instruments
GB2174578B (en) * 1985-05-04 1988-11-09 Stc Plc Loud speaking telephone
JP2569917B2 (ja) * 1989-07-24 1997-01-08 日本電気株式会社 拡声電話システム
US5212722A (en) * 1989-07-24 1993-05-18 Nec Corporation Hands-free telephone having a handset volume attenuator for controlling speaker volume in a hands-free adaptor
GB2256351B (en) * 1991-05-25 1995-07-05 Motorola Inc Enhancement of echo return loss
FI89848C (fi) * 1991-09-25 1993-11-25 Nokia Mobile Phones Ltd Generering av saendningssignalen i en mobiltelefon
GB2271247B (en) * 1992-10-05 1997-02-19 Motorola Israel Ltd A radio telephone for a vehicle
CN107394420B (zh) * 2017-06-16 2020-07-24 深圳市共进电子股份有限公司 有源单频天线系统

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1691076A (en) * 1924-03-11 1928-11-13 Western Electric Co Two-way radio signaling system
NL85819C (it) * 1953-06-30
FR1273918A (fr) * 1960-09-05 1961-10-20 Détecteur de parole
US3145269A (en) * 1962-05-16 1964-08-18 Bell Telephone Labor Inc Control of dynamic range and sensitivity of echo suppressor circuits
US3283074A (en) * 1962-12-31 1966-11-01 Gen Electric Voice-controlled communication system
US3351720A (en) * 1964-08-31 1967-11-07 Bell Telephone Labor Inc Echo suppressor for communication system having transmission delay
US3397401A (en) * 1966-05-27 1968-08-13 Hughes Aircraft Co Voice operated communication system
US3560669A (en) * 1969-02-25 1971-02-02 Wescom Echo suppressor
US3896273A (en) * 1971-01-08 1975-07-22 Communications Satellite Corp Digital echo suppressor
GB1510162A (en) * 1974-07-24 1978-05-10 Siemens Ag Echo traps

Also Published As

Publication number Publication date
NL7602665A (nl) 1976-09-15
DE2616791A1 (de) 1977-10-27
BR7601552A (pt) 1976-09-14
FR2304227B1 (it) 1980-10-03
FR2304227A1 (fr) 1976-10-08
CA1054680A (en) 1979-05-15
US3942116A (en) 1976-03-02
GB1497957A (en) 1978-01-12

Similar Documents

Publication Publication Date Title
IT1057562B (it) Ricetrasmettitore con circuito perfezionato a portante aziona ta a voce e di soppressione dell ecc
IT1062996B (it) Procedimento per produrre destrosio e destrine di amidi contenenti albumina
IT1061555B (it) Cannone elettronico
SE7809160L (sv) Adhesivt festorgan
IT1064756B (it) Insiemi di pellicole rivestiti
IT1065884B (it) Perfezionamento ai laminati plastici con rivestimento metallico
IT1067357B (it) Tastiera perfezionata
SE7601702L (sv) Forfarande for pletering av metaller
DK146833C (da) Trykbeholder af metal
NO143551C (no) Ledningsgjennomfoering for trykkar i atomreaktorer
FR2330191A1 (fr) Convertisseur statique perfectionne
IT1060567B (it) Chetoni fluorurati
BR7607175A (pt) Relogio eletronico
SE402489B (sv) Piezooptisk metomvandlare
SE7809158L (sv) Adhesivt festorgan
BE839209A (fr) Agent antiviral
IT1073834B (it) Cronometro elettronico
FR2322632A1 (fr) Telephone jouet
NO145595C (no) Batericid og fungicid middel inneholdende minst en diorganotinnforbindelse
SE7609317L (sv) Bad for fornickling
SE7510374L (sv) Impulsomvandlare
IT1074924B (it) Orologgio eletronico con meccanismo di allarme
BR7606833A (pt) Relogio eletronico digital
IT1053997B (it) Chiusura per braccialetto flessibile da polso
BR7606831A (pt) Relogio eletronico