BE476344A - - Google Patents
Info
- Publication number
- BE476344A BE476344A BE476344DA BE476344A BE 476344 A BE476344 A BE 476344A BE 476344D A BE476344D A BE 476344DA BE 476344 A BE476344 A BE 476344A
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Selective Calling Equipment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB18576/46A GB619878A (en) | 1946-06-20 | 1946-06-20 | Improvements in or relating to communicatioin systems and to signal receivers therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE476344A true BE476344A (it) |
Family
ID=27799778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE476344D BE476344A (it) | 1946-06-20 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2515553A (it) |
| BE (1) | BE476344A (it) |
| CH (1) | CH298702A (it) |
| FR (1) | FR951198A (it) |
| GB (1) | GB619878A (it) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1098648A (fr) * | 1954-01-22 | 1955-08-16 | Lignes Telegraph Telephon | Dispositif de réception de signaux télégraphiques |
| US2913711A (en) * | 1954-10-15 | 1959-11-17 | Itt | Signal control system |
| FR2455827A1 (fr) * | 1979-05-03 | 1980-11-28 | Ibm France | Dispositif de diagnostic et d'alarme pour un reseau de communication de donnees |
| DE2923716A1 (de) * | 1979-06-12 | 1980-12-18 | Fuss Fritz Kg | Verfahren zur uebertragung binaerer signale ueber ein fremdes drahtnetz |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1696274A (en) * | 1926-11-30 | 1928-12-25 | Bell Telephone Labor Inc | Substation circuits |
| US2205142A (en) * | 1937-02-03 | 1940-06-18 | Holtzer Cabot Electric Co | Loudspeaking telephone system |
| BE464853A (it) * | 1939-08-14 | |||
| USRE23057E (en) * | 1942-01-29 | 1948-12-14 | atkins | |
| US2370338A (en) * | 1944-05-11 | 1945-02-27 | James C White | Notebook leaf elevating and turning device |
-
0
- BE BE476344D patent/BE476344A/xx unknown
-
1946
- 1946-06-20 GB GB18576/46A patent/GB619878A/en not_active Expired
-
1947
- 1947-07-02 US US758641A patent/US2515553A/en not_active Expired - Lifetime
- 1947-07-29 CH CH298702D patent/CH298702A/fr unknown
- 1947-08-07 FR FR951198D patent/FR951198A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2515553A (en) | 1950-07-18 |
| GB619878A (en) | 1949-03-16 |
| FR951198A (fr) | 1949-10-18 |
| CH298702A (fr) | 1954-05-15 |