IT1005154B - Dispositivo per rilevare l occupazione di una via di tele comunicazione ad esempio una linea telefonica - Google Patents

Dispositivo per rilevare l occupazione di una via di tele comunicazione ad esempio una linea telefonica

Info

Publication number
IT1005154B
IT1005154B IT12677/73A IT1267773A IT1005154B IT 1005154 B IT1005154 B IT 1005154B IT 12677/73 A IT12677/73 A IT 12677/73A IT 1267773 A IT1267773 A IT 1267773A IT 1005154 B IT1005154 B IT 1005154B
Authority
IT
Italy
Prior art keywords
employment
detect
telephone
communication route
telephone line
Prior art date
Application number
IT12677/73A
Other languages
English (en)
Italian (it)
Original Assignee
Telecommunications 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 Telecommunications Sa filed Critical Telecommunications Sa
Application granted granted Critical
Publication of IT1005154B publication Critical patent/IT1005154B/it

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/78—Detection of presence or absence of voice signals
    • 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
    • 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)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Mobile Radio Communication Systems (AREA)
IT12677/73A 1973-01-12 1973-06-19 Dispositivo per rilevare l occupazione di una via di tele comunicazione ad esempio una linea telefonica IT1005154B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7301049A FR2214214B1 (enrdf_load_stackoverflow) 1973-01-12 1973-01-12

Publications (1)

Publication Number Publication Date
IT1005154B true IT1005154B (it) 1976-08-20

Family

ID=9113201

Family Applications (1)

Application Number Title Priority Date Filing Date
IT12677/73A IT1005154B (it) 1973-01-12 1973-06-19 Dispositivo per rilevare l occupazione di una via di tele comunicazione ad esempio una linea telefonica

Country Status (4)

Country Link
JP (1) JPS5241124B2 (enrdf_load_stackoverflow)
DE (1) DE2325239A1 (enrdf_load_stackoverflow)
FR (1) FR2214214B1 (enrdf_load_stackoverflow)
IT (1) IT1005154B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5887774U (ja) * 1981-12-10 1983-06-14 ナショナル住宅産業株式会社 吊り具
JPS63190280U (enrdf_load_stackoverflow) * 1987-05-27 1988-12-07
JPH0667479U (ja) * 1993-03-08 1994-09-22 栄 五島 鋼製覆工板用安全吊りフック
JPH06319827A (ja) * 1993-05-14 1994-11-22 Kooatsu:Kk ホースリール式消火設備

Also Published As

Publication number Publication date
FR2214214A1 (enrdf_load_stackoverflow) 1974-08-09
JPS49105411A (enrdf_load_stackoverflow) 1974-10-05
FR2214214B1 (enrdf_load_stackoverflow) 1981-07-24
JPS5241124B2 (enrdf_load_stackoverflow) 1977-10-17
DE2325239A1 (de) 1974-07-25

Similar Documents

Publication Publication Date Title
SE399743B (sv) Festanordning
BR7406897D0 (pt) Esquema de transmissao telefonica
DK147988C (da) Fordeler til telekommunikationsanlaeg, isaer telefonianlaeg
SE398576B (sv) Linjeskyddsdon for kommunikationskrets
SE391115B (sv) Festanordning
SE387811B (sv) Bidtelefonanleggning for privata telefonvexlar
IT1005154B (it) Dispositivo per rilevare l occupazione di una via di tele comunicazione ad esempio una linea telefonica
NL7500501A (nl) Telefoonkiessysteem.
NL7503734A (nl) Lijnkiezertelefoonstelsel.
NL7415585A (nl) Telefoontoestel.
BR7403020D0 (pt) Aparelho telefonico
AT336694B (de) Nebenstellen-fernsprechanlage
IT1019772B (it) Multiplexatore per vie telefoniche
BE813395A (fr) Interconnecteur pour elements telephoniques
IT1010893B (it) Centralino telefonico privato
NL169809C (nl) Luidsprekend telefoontoestel.
NL177547C (nl) Telefoonstelsel.
NL7410772A (nl) Telefoontoestel.
NL7515049A (nl) Telefoonverbindingsinrichting.
NL166167C (nl) Telefoonverbindingsstelsel.
BR7400666D0 (pt) Dispositivo para discagem de aparelho telefonico
AT327299B (de) Fernsprechhandapparat
ES187576Y (es) Muneca telefonista.
IT978099B (it) Apparecchio telefonico di abbonato
IT1009628B (it) Disposizione per la compartecipa zione ad una scneria telefonica