BE465609A - - Google Patents
Info
- Publication number
- BE465609A BE465609A BE465609DA BE465609A BE 465609 A BE465609 A BE 465609A BE 465609D A BE465609D A BE 465609DA BE 465609 A BE465609 A BE 465609A
- Authority
- BE
- Belgium
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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Devices For Supply Of Signal Current (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2539/44A GB582942A (en) | 1944-02-11 | 1944-02-11 | Improvements in or relating to electric signalling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE465609A true BE465609A (nl) |
Family
ID=27799322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE465609D BE465609A (nl) | 1944-02-11 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2510062A (nl) |
| BE (1) | BE465609A (nl) |
| CH (1) | CH265982A (nl) |
| FR (1) | FR970484A (nl) |
| GB (1) | GB582942A (nl) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR973819A (nl) * | 1947-10-29 | 1951-02-15 | ||
| US2686841A (en) * | 1950-10-13 | 1954-08-17 | Itt | Block coupler |
| US20080316784A1 (en) * | 2007-06-22 | 2008-12-25 | Cebry George L | Isolated radiation hardened electronics on/off control circuit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2059562A (en) * | 1936-11-03 | Gas-filled tube telegraph | ||
| US2038199A (en) * | 1935-01-26 | 1936-04-21 | Bell Telephone Labor Inc | Signal transmission circuit |
| US2022030A (en) * | 1935-02-16 | 1935-11-26 | Bell Telephone Labor Inc | Signaling system |
| US2229125A (en) * | 1937-07-06 | 1941-01-21 | Pray George Emerson | Electronic high speed keyer |
| US2287926A (en) * | 1938-03-04 | 1942-06-30 | Rca Corp | Signal actuated alarm circuit |
| US2361845A (en) * | 1938-05-07 | 1944-10-31 | Gen Electric | Electric valve circuit |
| GB560132A (en) * | 1942-09-17 | 1944-03-21 | Automatic Telephone & Elect | Improvements in or relating to telephone systems |
| US2424999A (en) * | 1943-03-13 | 1947-08-05 | Standard Telephones Cables Ltd | Pulse generating system |
-
0
- BE BE465609D patent/BE465609A/xx unknown
-
1944
- 1944-02-11 GB GB2539/44A patent/GB582942A/en not_active Expired
-
1945
- 1945-01-29 US US575118A patent/US2510062A/en not_active Expired - Lifetime
- 1945-09-19 CH CH265982D patent/CH265982A/de unknown
-
1946
- 1946-03-08 FR FR970484D patent/FR970484A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR970484A (fr) | 1951-01-04 |
| GB582942A (en) | 1946-12-03 |
| CH265982A (de) | 1949-12-31 |
| US2510062A (en) | 1950-06-06 |