IL27449A - Telephone system with added main line subscriber facilities - Google Patents

Telephone system with added main line subscriber facilities

Info

Publication number
IL27449A
IL27449A IL27449A IL2744967A IL27449A IL 27449 A IL27449 A IL 27449A IL 27449 A IL27449 A IL 27449A IL 2744967 A IL2744967 A IL 2744967A IL 27449 A IL27449 A IL 27449A
Authority
IL
Israel
Prior art keywords
subscriber
circuit
central office
pair
cable
Prior art date
Application number
IL27449A
Other languages
English (en)
Original Assignee
Ped Inc
Superior Continental Corp
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 Ped Inc, Superior Continental Corp filed Critical Ped Inc
Publication of IL27449A publication Critical patent/IL27449A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/08—Current supply arrangements for telephone systems with current supply sources at the substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
    • H04Q5/245—Circuit arrangements in which for one subscriber low frequency speech and/or signalling signals proceed on the line, while for the other subscriber the low frequency speech and/or signalling signals are modulated upon a high frequency carrier signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Dc-Dc Converters (AREA)
IL27449A 1966-05-11 1967-02-16 Telephone system with added main line subscriber facilities IL27449A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US54939966A 1966-05-11 1966-05-11
US66016567A 1967-08-02 1967-08-02

Publications (1)

Publication Number Publication Date
IL27449A true IL27449A (en) 1972-02-29

Family

ID=27069121

Family Applications (1)

Application Number Title Priority Date Filing Date
IL27449A IL27449A (en) 1966-05-11 1967-02-16 Telephone system with added main line subscriber facilities

Country Status (13)

Country Link
US (1) US3510584A (de)
AT (4) AT308843B (de)
BE (2) BE698326A (de)
CH (2) CH474928A (de)
DE (1) DE1512892C3 (de)
ES (2) ES337847A1 (de)
FI (1) FI53052C (de)
FR (2) FR1522794A (de)
GB (2) GB1185678A (de)
IL (1) IL27449A (de)
MY (1) MY7200057A (de)
NL (2) NL6703380A (de)
SE (1) SE318622C (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601538A (en) * 1969-02-24 1971-08-24 Stromberg Carlson Corp Carrier and voice-frequency telephone system
US3700817A (en) * 1970-10-16 1972-10-24 Itt Single channel carrier telephone system
US3686444A (en) * 1971-03-01 1972-08-22 Robert Andrew Stevenson Telephone instruments
US3780228A (en) * 1972-03-01 1973-12-18 Gte Automatic Electric Lab Inc Automatic disconnect circuit for reducing dial pulse distortion caused by subscriber carrier equipment
US3932712A (en) * 1972-06-14 1976-01-13 Stromberg-Carlson Corporation Telephone transmission system
US3822366A (en) * 1972-10-10 1974-07-02 Garrett J One channel carrier intercom system
US3886321A (en) * 1973-11-05 1975-05-27 Seismograph Service Corp Ringing generator for telephone station terminal
US3903367A (en) * 1974-01-25 1975-09-02 Gte Automatic Electric Lab Inc Power control circuitry for subscriber carrier telephone systems
US3902017A (en) * 1974-01-25 1975-08-26 Gte Automatic Electric Lab Inc Ringer guard circuitry for subscriber carrier telephone system
US4048551A (en) * 1975-12-05 1977-09-13 Bell Telephone Laboratories, Incorporated Battery charging circuit
US4105867A (en) * 1977-02-07 1978-08-08 H. R. Electronics Company Control circuit for pay telephones and the like
US4152546A (en) * 1977-08-25 1979-05-01 Gte Automatic Electric Laboratories, Inc. Ringer power generator circuit for carrier subscriber station terminal
FR2516726A1 (fr) * 1981-11-13 1983-05-20 Cit Alcatel Quadripole limiteur de parasites pour systemes de transmission telephonique de type 1 + 1
US4653046A (en) * 1984-06-18 1987-03-24 Brand-Rex Company Single channel subscriber carrier system
US5459729C1 (en) * 1989-07-25 2002-03-19 Raychem Corp Digital added main line system
US5668814A (en) * 1995-03-20 1997-09-16 Raychem Corporation Dual DDS data multiplexer
US6282204B1 (en) 1997-12-19 2001-08-28 Terayon Communication Systems, Inc. ISDN plus voice multiplexer system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2654804A (en) * 1949-05-27 1953-10-06 Bell Telephone Labor Inc Power line carrier telephone system
US2744958A (en) * 1951-07-30 1956-05-08 Ellsworth A Hosmer Carrier telephone system
US2857464A (en) * 1954-08-16 1958-10-21 Bell Telephone Labor Inc Carrier operation of multistation telephone lines
US2932694A (en) * 1954-09-10 1960-04-12 Bell Telephone Labor Inc Rural carrier telephone transmission system
US2829204A (en) * 1954-11-26 1958-04-01 Bell Telephone Labor Inc Battery charging over subscriber telephone line
US2917580A (en) * 1955-04-29 1959-12-15 Chen Li-Yen Carrier telephone system
US3029312A (en) * 1957-11-13 1962-04-10 W C Dillon & Company Inc Communication system

Also Published As

Publication number Publication date
DE1512892B2 (de) 1970-03-26
BE705630A (de) 1968-04-25
BE698326A (de) 1967-11-13
DE1512892A1 (de) 1969-10-16
DE1537838A1 (de) 1970-02-12
GB1195341A (en) 1970-06-17
CH487559A (de) 1970-03-15
SE318622B (sv) 1969-12-15
DE1537838B2 (de) 1976-01-22
FI53052B (de) 1977-09-30
NL6703380A (de) 1967-11-13
AT309539B (de) 1973-08-27
MY7200057A (en) 1972-12-31
ES346305A2 (es) 1969-03-01
ES337847A1 (es) 1968-03-01
NL6712498A (de) 1969-02-04
AT303131B (de) 1972-11-10
FR1522794A (fr) 1968-04-26
AT327994B (de) 1976-02-25
US3510584A (en) 1970-05-05
GB1185678A (en) 1970-03-25
FR93398E (fr) 1969-03-21
AT308843B (de) 1973-07-25
FI53052C (de) 1978-01-10
CH474928A (de) 1969-06-30
DE1512892C3 (de) 1975-07-03
SE318622C (sv) 1974-09-23

Similar Documents

Publication Publication Date Title
IL27449A (en) Telephone system with added main line subscriber facilities
US2510273A (en) Power line carrier frequency telephone system
US4103114A (en) Variable delay ringing detector
US4310728A (en) Ringing device for a private automatic branch exchange
US3601538A (en) Carrier and voice-frequency telephone system
US3626201A (en) Polarity responsive circuit for telephone systems
US2801287A (en) Control of regular and distant talking subscribers sets
US4015091A (en) Telephone ringing generators
US3757053A (en) Time multiplexed sampled data telephone system
US3639692A (en) Subscriber terminal unit for telephone carrier system
US3886321A (en) Ringing generator for telephone station terminal
US3624300A (en) Central office terminal unit for telephone carrier system
US2967911A (en) Telephone bell ringing circuits
US4025729A (en) Telephone ringing control circuits
US2857464A (en) Carrier operation of multistation telephone lines
US3927266A (en) Ringer power generator circuit for subscriber carrier station terminal
US3703611A (en) Telephone system
CA1206646A (en) Loop-circuit for telephone line
GB948929A (en) Improvements in or relating to communication systems
US4310723A (en) Party line apparatus
US3752924A (en) Telephone subscriber line ring-trip detection circuit
CA1176771A (en) Arrangement for extending digital signaling to telephone subscribers' substations
US2829204A (en) Battery charging over subscriber telephone line
US3941941A (en) Relayless switching circuit for application of ringing signals
US2837605A (en) Subscriber-loop carrier telephone ringing systems