FR960757A - - Google Patents
Info
- Publication number
- FR960757A FR960757A FR960757DA FR960757A FR 960757 A FR960757 A FR 960757A FR 960757D A FR960757D A FR 960757DA FR 960757 A FR960757 A FR 960757A
- Authority
- FR
- France
- Legal status (The legal status 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 status listed.)
- Expired
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
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/446—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency
- H04Q1/4465—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using one signalling frequency the same frequency being used for all signalling information, e.g. A.C. nr.9 system
-
- 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
- H04Q1/442—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies
- H04Q1/4423—Signalling arrangements; Manipulation of signalling currents using alternate current with out-of-voice band signalling frequencies using one signalling frequency
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
- Electrotherapy Devices (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2498723X | 1944-01-07 | ||
| FR636253X | 1944-01-08 | ||
| FR2462144X | 1945-03-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR960757A true FR960757A (US06486227-20021126-C00005.png) | 1950-04-25 |
Family
ID=32233873
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR960757D Expired FR960757A (US06486227-20021126-C00005.png) | 1944-01-07 | ||
| FR54628D Expired FR54628E (fr) | 1944-01-07 | 1945-03-27 | Systèmes récepteurs et répétiteurs d'impulsions pour réseaux de télécommunication |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR54628D Expired FR54628E (fr) | 1944-01-07 | 1945-03-27 | Systèmes récepteurs et répétiteurs d'impulsions pour réseaux de télécommunication |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US2498723A (US06486227-20021126-C00005.png) |
| BE (1) | BE477477A (US06486227-20021126-C00005.png) |
| FR (2) | FR54628E (US06486227-20021126-C00005.png) |
| GB (1) | GB636253A (US06486227-20021126-C00005.png) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2579530A (en) * | 1947-04-29 | 1951-12-25 | Int Standard Electric Corp | Four-wire to two-wire connecting circuit |
| US2914615A (en) * | 1952-10-09 | 1959-11-24 | Int Standard Electric Corp | Electric signal repeaters |
| NL287044A (US06486227-20021126-C00005.png) * | 1961-12-21 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB323804A (en) * | 1928-10-11 | 1930-01-13 | Western Electric Y | Improvements in impulse controlling arrangements for use in electrical signalling systems |
| NL215077A (US06486227-20021126-C00005.png) * | 1931-07-02 | |||
| US2047729A (en) * | 1933-09-29 | 1936-07-14 | Bell Telephone Labor Inc | Transmission control in two-way signaling systems |
| US2029693A (en) * | 1934-09-07 | 1936-02-04 | Bell Telephone Labor Inc | Telephone system |
| US2045402A (en) * | 1935-01-17 | 1936-06-23 | Bell Telephone Labor Inc | Signaling system |
| US2056235A (en) * | 1935-05-22 | 1936-10-06 | Bell Telephone Labor Inc | Resetting circuit for trigger devices |
| US2091551A (en) * | 1935-06-22 | 1937-08-31 | Bell Telephone Labor Inc | Signaling system |
| US2222248A (en) * | 1939-04-18 | 1940-11-19 | Bell Telephone Labor Inc | Ringing system |
| US2253621A (en) * | 1940-04-05 | 1941-08-26 | Bell Telephone Labor Inc | Signaling system |
-
0
- FR FR960757D patent/FR960757A/fr not_active Expired
- BE BE477477D patent/BE477477A/xx unknown
-
1945
- 1945-03-27 FR FR54628D patent/FR54628E/fr not_active Expired
-
1946
- 1946-04-06 US US660269A patent/US2498723A/en not_active Expired - Lifetime
- 1946-04-12 US US661493A patent/US2462144A/en not_active Expired - Lifetime
- 1946-10-04 GB GB29660/46A patent/GB636253A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2462144A (en) | 1949-02-22 |
| GB636253A (en) | 1950-04-26 |
| BE477477A (US06486227-20021126-C00005.png) | |
| FR54628E (fr) | 1950-07-07 |
| US2498723A (en) | 1950-02-28 |
