SE318622C - Telefonanläggning innefattande en telefonstation, försedd med en gemensam strömkälla - Google Patents
Telefonanläggning innefattande en telefonstation, försedd med en gemensam strömkällaInfo
- Publication number
- SE318622C SE318622C SE649367A SE649367A SE318622C SE 318622 C SE318622 C SE 318622C SE 649367 A SE649367 A SE 649367A SE 649367 A SE649367 A SE 649367A SE 318622 C SE318622 C SE 318622C
- Authority
- SE
- Sweden
- Prior art keywords
- telephone
- power source
- system including
- common power
- telephone system
- Prior art date
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)
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 (2)
Publication Number | Publication Date |
---|---|
SE318622B SE318622B (sv) | 1969-12-15 |
SE318622C true SE318622C (sv) | 1974-09-23 |
Family
ID=27069121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE649367A SE318622C (sv) | 1966-05-11 | 1967-05-09 | Telefonanläggning innefattande en telefonstation, försedd med en gemensam strömkälla |
Country Status (13)
Country | Link |
---|---|
US (1) | US3510584A (xx) |
AT (4) | AT308843B (xx) |
BE (2) | BE698326A (xx) |
CH (2) | CH474928A (xx) |
DE (1) | DE1512892C3 (xx) |
ES (2) | ES337847A1 (xx) |
FI (1) | FI53052C (xx) |
FR (2) | FR1522794A (xx) |
GB (2) | GB1185678A (xx) |
IL (1) | IL27449A (xx) |
MY (1) | MY7200057A (xx) |
NL (2) | NL6703380A (xx) |
SE (1) | SE318622C (xx) |
Families Citing this family (17)
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)
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 |
-
1967
- 1967-02-16 IL IL27449A patent/IL27449A/en unknown
- 1967-02-28 NL NL6703380A patent/NL6703380A/xx unknown
- 1967-03-10 ES ES337847A patent/ES337847A1/es not_active Expired
- 1967-05-01 GB GB09926/67A patent/GB1185678A/en not_active Expired - Lifetime
- 1967-05-09 CH CH652467A patent/CH474928A/de not_active IP Right Cessation
- 1967-05-09 SE SE649367A patent/SE318622C/xx unknown
- 1967-05-11 DE DE1512892A patent/DE1512892C3/de not_active Expired - Lifetime
- 1967-05-11 AT AT1166869A patent/AT308843B/de not_active Expired
- 1967-05-11 BE BE698326D patent/BE698326A/xx not_active IP Right Cessation
- 1967-05-11 FR FR106148A patent/FR1522794A/fr not_active Expired
- 1967-05-11 AT AT445567A patent/AT303131B/de not_active IP Right Cessation
- 1967-08-02 US US660165A patent/US3510584A/en not_active Expired - Lifetime
- 1967-09-13 NL NL6712498A patent/NL6712498A/xx unknown
- 1967-09-19 AT AT852167A patent/AT309539B/de not_active IP Right Cessation
- 1967-10-12 FI FI2738/67A patent/FI53052C/fi active
- 1967-10-21 ES ES346305A patent/ES346305A2/es not_active Expired
- 1967-10-25 BE BE705630D patent/BE705630A/xx not_active IP Right Cessation
- 1967-11-14 CH CH1587767A patent/CH487559A/de not_active IP Right Cessation
- 1967-11-29 FR FR130228A patent/FR93398E/fr not_active Expired
-
1968
- 1968-02-15 GB GB7469/68A patent/GB1195341A/en not_active Expired - Lifetime
-
1969
- 1969-12-15 AT AT1166969A patent/AT327994B/de not_active IP Right Cessation
-
1972
- 1972-12-31 MY MY197257A patent/MY7200057A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
SE318622B (sv) | 1969-12-15 |
US3510584A (en) | 1970-05-05 |
GB1185678A (en) | 1970-03-25 |
DE1537838B2 (de) | 1976-01-22 |
BE705630A (xx) | 1968-04-25 |
CH474928A (de) | 1969-06-30 |
ES337847A1 (es) | 1968-03-01 |
ES346305A2 (es) | 1969-03-01 |
AT327994B (de) | 1976-02-25 |
AT309539B (de) | 1973-08-27 |
NL6712498A (xx) | 1969-02-04 |
NL6703380A (xx) | 1967-11-13 |
DE1512892C3 (de) | 1975-07-03 |
AT308843B (de) | 1973-07-25 |
FR93398E (fr) | 1969-03-21 |
GB1195341A (en) | 1970-06-17 |
BE698326A (xx) | 1967-11-13 |
DE1537838A1 (de) | 1970-02-12 |
MY7200057A (en) | 1972-12-31 |
CH487559A (de) | 1970-03-15 |
FI53052C (xx) | 1978-01-10 |
IL27449A (en) | 1972-02-29 |
FI53052B (xx) | 1977-09-30 |
FR1522794A (fr) | 1968-04-26 |
AT303131B (de) | 1972-11-10 |
DE1512892A1 (de) | 1969-10-16 |
DE1512892B2 (de) | 1970-03-26 |
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