SE8100701L - Tongenerator for en med tidsuppdelning arbetande telefonvexel - Google Patents

Tongenerator for en med tidsuppdelning arbetande telefonvexel

Info

Publication number
SE8100701L
SE8100701L SE8100701A SE8100701A SE8100701L SE 8100701 L SE8100701 L SE 8100701L SE 8100701 A SE8100701 A SE 8100701A SE 8100701 A SE8100701 A SE 8100701A SE 8100701 L SE8100701 L SE 8100701L
Authority
SE
Sweden
Prior art keywords
transmission path
transistors
tone generator
collectors
conductor
Prior art date
Application number
SE8100701A
Other languages
English (en)
Swedish (sv)
Inventor
A Sbuelz
Original Assignee
Italtel Spa
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 Italtel Spa filed Critical Italtel Spa
Publication of SE8100701L publication Critical patent/SE8100701L/

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
SE8100701A 1980-02-29 1981-01-30 Tongenerator for en med tidsuppdelning arbetande telefonvexel SE8100701L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8020253A IT1209311B (it) 1980-02-29 1980-02-29 Generatore di toni per centrali telefoniche a divisione di tempo.

Publications (1)

Publication Number Publication Date
SE8100701L true SE8100701L (sv) 1981-08-30

Family

ID=11165170

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8100701A SE8100701L (sv) 1980-02-29 1981-01-30 Tongenerator for en med tidsuppdelning arbetande telefonvexel

Country Status (10)

Country Link
US (1) US4383313A ( )
AR (1) AR227909A1 ( )
BR (1) BR8101065A ( )
DE (1) DE3107637A1 ( )
ES (1) ES8201797A1 ( )
FR (1) FR2477347A1 ( )
GB (1) GB2073548A ( )
IT (1) IT1209311B ( )
PT (1) PT72584B ( )
SE (1) SE8100701L ( )

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4995054A (en) * 1987-07-08 1991-02-19 Eckersley Gregory P Data transmission using switched resonance
US5825781A (en) * 1995-12-20 1998-10-20 Hubbell, Inc. Pulse amplitude modulated tone generator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE524024A ( ) * 1952-11-07
DE1281400B (de) * 1958-03-26 1968-10-24 Dr Phil Helmut Pichler Verfahren zur kontinuierlichen Trennung von Gasen nach dem Prinzip der Gas-Elutions-Chromatographie
NL289607A ( ) * 1962-03-02
US3519747A (en) * 1967-09-15 1970-07-07 Ibm Signal insertion and conferencing in a resonant transfer integrated time division switching and frequency division multiplexing communication system
FR2009623A1 ( ) * 1968-05-30 1970-02-06 Sits Soc It Telecom Siemens
DE2000832C3 (de) * 1970-01-09 1979-11-22 Standard Elektrik Lorenz Ag, 7000 Stuttgart Rufverfahren und Rufeinrichtung für Zeitmultiplex-Vermittlungsanlagen
US4028628A (en) * 1975-12-05 1977-06-07 Bell Telephone Laboratories, Incorporated Transceivers for single channel carrier telephone systems

Also Published As

Publication number Publication date
DE3107637A1 (de) 1982-06-09
IT1209311B (it) 1989-07-16
IT8020253A0 (it) 1980-02-29
AR227909A1 (es) 1982-12-30
BR8101065A (pt) 1981-09-01
GB2073548A (en) 1981-10-14
US4383313A (en) 1983-05-10
FR2477347A1 (fr) 1981-09-04
ES499684A0 (es) 1982-01-01
PT72584A (fr) 1981-03-01
ES8201797A1 (es) 1982-01-01
PT72584B (fr) 1982-03-12

Similar Documents

Publication Publication Date Title
IE802395L (en) Bias voltage generator
US4541112A (en) Electroacoustic transducer system
SE8100701L (sv) Tongenerator for en med tidsuppdelning arbetande telefonvexel
ES8103623A1 (es) Perfeccionamientos en los circuitos interfase para teclados electronicos de aparatos telefonicos
CA1057844A (en) Transducer drive circuit for remote control transmitter
US3984705A (en) High power remote control ultrasonic transmitter
ATE162022T1 (de) Switched-capacitor-netzwerk
KR910010856A (ko) 주파수 변환기용 전원스위칭 회로
JPS6113857A (ja) 電話回路
US4230912A (en) Dial pulse sensor and repeater circuit
IT1209219B (it) Circuito a specchio di corrente ad alta impedenza di uscita a bassa 'perdita di tensione'.
EP0724308A3 (en) Antenna arrangement
NO881198L (no) Koblingsanordning for aa frembringe et anropssignal for etterminalapparat i et digitalt telefonnett.
SE9504591D0 (sv) Kopplingsanordning för amplitudmätning
CA1105626A (en) Carrier subscriber telephone station terminal loop current booster
FI61978C (fi) Vaeljaranordning speciellt foer en noedtelefonanordning
KR810000765Y1 (ko) 전화기의 푸시버튼식 다이얼 장치
DE3483962D1 (de) Hochfrequenz-verteileinrichtung.
RU2195073C1 (ru) Устройство сопряжения двухпроводного и четырехпроводного трактов
SU758481A1 (ru) Устройство дл передачи потенциала с гальванической разв зкой
KR950002107Y1 (ko) 전화기의 기생펄스 방지회로
SU1725333A1 (ru) Устройство дл управлени мощным полевым транзистором
GB2129243A (en) A circuit for providing a source of pulses for an electronic suppression of pain
SU1398741A1 (ru) Ключевое устройство
SU702496A1 (ru) Импульсный генератор

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8100701-5