NL34797C - - Google Patents
Info
- Publication number
- NL34797C NL34797C NL54620A NL54620A NL34797C NL 34797 C NL34797 C NL 34797C NL 54620 A NL54620 A NL 54620A NL 54620 A NL54620 A NL 54620A NL 34797 C NL34797 C NL 34797C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/08—Transmission systems not characterised by the medium used for transmission characterised by the use of a sub-carrier
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/002—Transmission systems not characterised by the medium used for transmission characterised by the use of a carrier modulation
- H04B14/004—Amplitude modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/005—Control of transmission; Equalising
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Noise Elimination (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1930609540D DE609540C (de) | 1930-01-02 | 1930-11-11 | Anlage fuer Hochfrequenznachrichtenuebermittlung mit gespreizten Seitenbaendern |
NL54620A NL34797C (fr) | 1930-01-02 | 1930-12-03 | |
US501825A US1907109A (en) | 1930-01-02 | 1930-12-12 | Radio signaling system |
FR733626D FR733626A (fr) | 1930-01-02 | 1931-06-15 | Perfectionnements aux systèmes de signalisation utilisant des ondes modulées |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1907109X | 1930-01-02 | ||
NL54620A NL34797C (fr) | 1930-01-02 | 1930-12-03 | |
FR733626T | 1931-06-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL34797C true NL34797C (fr) | 1935-03-15 |
Family
ID=10893335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL54620A NL34797C (fr) | 1930-01-02 | 1930-12-03 |
Country Status (4)
Country | Link |
---|---|
US (1) | US1907109A (fr) |
DE (1) | DE609540C (fr) |
FR (1) | FR733626A (fr) |
NL (1) | NL34797C (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE767200C (de) * | 1932-12-23 | 1952-02-14 | Siemens & Halske A G | Mehrfachtraegerfrequenzuebertragungssystem fuer Sprache unter Anwendung einer zwei- oder mehrfachen Modulation, insbesondere ueber Kabelleitungen |
DE763148C (de) * | 1937-10-26 | 1954-08-02 | Telefunken Gmbh | Anordnung zur Traegerfrequenzuebertragung eines auch sehr niedrige Frequenzen enthaltenden Fernsehfrequenzbandes |
DE889903C (de) * | 1939-11-17 | 1953-09-14 | Fernseh Gmbh | Fernsehuebertragungsverfahren |
BE445078A (fr) * | 1941-04-03 | |||
GB556079A (en) * | 1942-03-12 | 1943-09-20 | Standard Telephones Cables Ltd | Improvements relating to multi-channel electrical communication systems |
GB595712A (en) * | 1943-08-02 | 1947-12-15 | Comm Engineering Pty Ltd | Multi-channel telephone systems |
BE459652A (fr) * | 1944-05-08 | 1945-09-29 | ||
US2621325A (en) * | 1946-08-20 | 1952-12-09 | Radio Electr Soc Fr | Plural modulation multiplex system |
US2502955A (en) * | 1947-03-25 | 1950-04-04 | Hartford Nat Bank & Trust Co | Apparatus for deriving from a recurrent wave, a voltage of relatively low fundamental frequency but of the same shape |
BE484646A (fr) * | 1947-09-03 | |||
US2662933A (en) * | 1951-04-26 | 1953-12-15 | Bell Telephone Labor Inc | Multiplex carrier telegraph system |
FR1234095A (fr) * | 1958-09-16 | 1960-10-14 | Fernseh Gmbh | Procédé et dispositifs pour enregistrer des signaux de télévision sur un ruban magnétique |
US3678390A (en) * | 1968-10-11 | 1972-07-18 | Tokyo Shibaura Electric Co | Frequency modulation communication system |
-
1930
- 1930-11-11 DE DE1930609540D patent/DE609540C/de not_active Expired
- 1930-12-03 NL NL54620A patent/NL34797C/xx active
- 1930-12-12 US US501825A patent/US1907109A/en not_active Expired - Lifetime
-
1931
- 1931-06-15 FR FR733626D patent/FR733626A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE609540C (de) | 1935-02-20 |
US1907109A (en) | 1933-05-02 |
FR733626A (fr) | 1932-10-08 |