IT1163604B - Commutatore centrale elettronico - Google Patents

Commutatore centrale elettronico

Info

Publication number
IT1163604B
IT1163604B IT21806/83A IT2180683A IT1163604B IT 1163604 B IT1163604 B IT 1163604B IT 21806/83 A IT21806/83 A IT 21806/83A IT 2180683 A IT2180683 A IT 2180683A IT 1163604 B IT1163604 B IT 1163604B
Authority
IT
Italy
Prior art keywords
central switch
electronic central
electronic
switch
central
Prior art date
Application number
IT21806/83A
Other languages
English (en)
Other versions
IT8321806A0 (it
Inventor
Gary Grantland
Original Assignee
Gte Automatic Electric 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 Gte Automatic Electric Inc filed Critical Gte Automatic Electric Inc
Publication of IT8321806A0 publication Critical patent/IT8321806A0/it
Application granted granted Critical
Publication of IT1163604B publication Critical patent/IT1163604B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
IT21806/83A 1982-07-07 1983-06-27 Commutatore centrale elettronico IT1163604B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/395,885 US4442322A (en) 1982-07-07 1982-07-07 Electronic common switch having an improved receiver mating arrangement

Publications (2)

Publication Number Publication Date
IT8321806A0 IT8321806A0 (it) 1983-06-27
IT1163604B true IT1163604B (it) 1987-04-08

Family

ID=23564946

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21806/83A IT1163604B (it) 1982-07-07 1983-06-27 Commutatore centrale elettronico

Country Status (4)

Country Link
US (1) US4442322A (it)
JP (1) JPS5923665A (it)
CA (1) CA1193775A (it)
IT (1) IT1163604B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01141451A (ja) * 1987-11-27 1989-06-02 Sharp Corp 電話機
JP2658270B2 (ja) * 1988-09-30 1997-09-30 日本電気株式会社 ダイヤル確認音出力回路
US5191606A (en) * 1990-05-08 1993-03-02 Industrial Technology Research Institute Electrical telephone speech network
KR0138189B1 (ko) * 1995-05-31 1998-07-01 김광호 디지탈키폰전화기에서 스피커폰 사용시 톤신호 노이즈 제거방법

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4315108A (en) * 1975-09-29 1982-02-09 Mostek Corporation Integrated circuit chip telephone communication system
US4087638A (en) * 1976-10-01 1978-05-02 Telaris Telecommunications Inc. DTMF Communication system
US4332984A (en) * 1979-12-13 1982-06-01 Bell Telephone Laboratories, Incorporated Active speech network circuit for a telephone set

Also Published As

Publication number Publication date
JPS5923665A (ja) 1984-02-07
IT8321806A0 (it) 1983-06-27
US4442322A (en) 1984-04-10
CA1193775A (en) 1985-09-17

Similar Documents

Publication Publication Date Title
IT8368209A0 (it) Interruttore elettrico
KR850002890U (ko) 회로차단기
PT73668B (de) Leitungsschutzschalter
FR2569304B1 (fr) Interrupteur de circuit
AT377136B (de) Elektronischer schalter
KR890011709U (ko) 회로차단기
AT378622B (de) Elektrisches schaltgeraet
FI830659A0 (fi) Kopplingsanordning
IT1163604B (it) Commutatore centrale elettronico
KR840006424U (ko) 개폐기
DK77384A (da) Elektronisk installationsafbryder
FI833024A (fi) Kopplingsanordning
KR830003364U (ko) 회로 차단기
AT383905B (de) Leitungsschutzschalteranordnung
KR840007866U (ko) 절환기
DK65283A (da) Elektrisk gaffelkontakt
KR880018598U (ko) 회로 차단기
DK189885A (da) Elektronisk afbryder
KR840006422U (ko) 개폐기
KR840006423U (ko) 개폐기
KR840006432U (ko) 회로차단기
BR6101538U (pt) Multchave eletronica
KR850005503U (ko) 스위칭 회로
ATA27184A (de) Elektronischer schalter
DD251906A3 (de) Elektronischer umschalter