BE548371A - - Google Patents
Info
- Publication number
- BE548371A BE548371A BE548371DA BE548371A BE 548371 A BE548371 A BE 548371A BE 548371D A BE548371D A BE 548371DA BE 548371 A BE548371 A BE 548371A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/12—Modulator circuits; Transmitter circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electrophonic Musical Instruments (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2929874X | 1955-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE548371A true BE548371A (en) |
Family
ID=11436319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE548371D BE548371A (en) | 1955-06-10 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2929874A (en) |
| BE (1) | BE548371A (en) |
| DE (1) | DE1024553B (en) |
| FR (1) | FR1154154A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3181081A (en) * | 1957-06-25 | 1965-04-27 | Texaco Inc | Gated multivibrators |
| GB1021915A (en) * | 1962-09-11 | 1966-03-09 | Standard Telephones Cables Ltd | A frequency switching device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE873401C (en) * | 1944-02-03 | 1953-04-13 | Telefunken Gmbh | Circuit for alternating keying of two frequencies for double-tone telegraphy |
| US2461456A (en) * | 1944-02-11 | 1949-02-08 | Rca Corp | Frequency shift keying |
| US2448336A (en) * | 1944-12-14 | 1948-08-31 | Rca Corp | Frequency shift keyer |
| US2494321A (en) * | 1945-06-27 | 1950-01-10 | Rca Corp | Frequency shift keying stage |
| US2536330A (en) * | 1945-07-28 | 1951-01-02 | Rca Corp | Signaling system |
-
0
- BE BE548371D patent/BE548371A/xx unknown
-
1956
- 1956-05-09 US US583830A patent/US2929874A/en not_active Expired - Lifetime
- 1956-05-30 DE DEC13112A patent/DE1024553B/en active Pending
- 1956-06-04 FR FR1154154D patent/FR1154154A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1024553B (en) | 1958-02-20 |
| FR1154154A (en) | 1958-04-03 |
| US2929874A (en) | 1960-03-22 |