FR957756A - - Google Patents
Info
- Publication number
- FR957756A FR957756A FR957756DA FR957756A FR 957756 A FR957756 A FR 957756A FR 957756D A FR957756D A FR 957756DA FR 957756 A FR957756 A FR 957756A
- 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
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C1/00—Amplitude modulation
- H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
- H03C1/60—Modulators in which carrier or one sideband is wholly or partially suppressed with one sideband wholly or partially suppressed
-
- 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)
- Transmitters (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US545934A US2424971A (en) | 1944-07-21 | 1944-07-21 | Frequency-shift radio telegraph transmitting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR957756A true FR957756A (da) | 1950-02-25 |
Family
ID=24178130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR957756D Expired FR957756A (da) | 1944-07-21 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2424971A (da) |
| BE (1) | BE480495A (da) |
| CH (1) | CH265359A (da) |
| FR (1) | FR957756A (da) |
| GB (1) | GB645436A (da) |
| NL (1) | NL67418C (da) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2596612A (en) * | 1943-06-12 | 1952-05-13 | Hartford Nat Bank & Trust Co | Signal receiver for carrier-wave telephony systems |
| BE483326A (da) * | 1946-11-02 | |||
| US2483271A (en) * | 1946-11-30 | 1949-09-27 | Frederick W Frink | Frequency modulation transmitter |
| US3274591A (en) * | 1947-05-08 | 1966-09-20 | Torrence H Chambers | Phase rotation system for use in velocity cancellation moving target radar systems |
| US2635226A (en) * | 1950-01-20 | 1953-04-14 | Collins Radio Co | Phase modulation system and apparatus |
| US2576429A (en) * | 1950-01-31 | 1951-11-27 | Jr Oswald G Villard | Single side-band signal generator |
| US2797313A (en) * | 1951-03-27 | 1957-06-25 | Hoffman Electronics Corp | Radio communication by neutral frequency deviation |
| US2678385A (en) * | 1951-04-16 | 1954-05-11 | Rca Corp | Diversity receiver |
| US2659051A (en) * | 1952-04-29 | 1953-11-10 | John F Honey | Carrier insertion |
| US2726368A (en) * | 1952-08-16 | 1955-12-06 | Bell Telephone Labor Inc | Broad-band phase-shifting circuit |
| US2935692A (en) * | 1954-03-08 | 1960-05-03 | Nathaniel L Cohen | Phase control system |
| DE961718C (de) * | 1954-04-02 | 1957-04-11 | Siemens Ag | Verfahren zur Frequenzumtastung fuer die UEbertragung zweier Nachrichten, insbesondere fuer die Zweifach-F 1-Modulation von Funksendern |
| US2927159A (en) * | 1955-05-03 | 1960-03-01 | Lab For Electronics Inc | Frequency-shift keying |
| NL269883A (da) * | 1956-11-08 | |||
| DE1221667B (de) * | 1963-01-03 | 1966-07-28 | Telefunken Patent | Verfahren zur Erzeugung eines Farbtraegers |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1666206A (en) * | 1925-01-15 | 1928-04-17 | Western Electric Co | Modulation system |
| US1831516A (en) * | 1928-01-10 | 1931-11-10 | Ralph B Stewart | Modulating system and method |
| US1773116A (en) * | 1928-01-24 | 1930-08-19 | American Telephone & Telegraph | Single-side-band system |
| US1935776A (en) * | 1929-05-18 | 1933-11-21 | Jr John Hays Hammond | Side band reversal transmission system |
| FR39312E (fr) * | 1930-05-06 | 1931-10-12 | Radio Electr Soc Fr | Perfectionnements aux méthodes de radio-communication |
| US2198248A (en) * | 1936-09-01 | 1940-04-23 | Rca Corp | Method of and means for communication |
| US2118917A (en) * | 1936-09-03 | 1938-05-31 | William G H Finch | Dual tone telegraphy system |
-
0
- FR FR957756D patent/FR957756A/fr not_active Expired
- BE BE480495D patent/BE480495A/xx unknown
- NL NL67418D patent/NL67418C/xx active
-
1944
- 1944-07-21 US US545934A patent/US2424971A/en not_active Expired - Lifetime
-
1947
- 1947-12-30 CH CH265359D patent/CH265359A/de unknown
-
1948
- 1948-02-20 GB GB5100/48A patent/GB645436A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL67418C (da) | |
| GB645436A (en) | 1950-11-01 |
| BE480495A (da) | |
| US2424971A (en) | 1947-08-05 |
| CH265359A (de) | 1949-11-30 |