CH285638A - Installation de communication radioélectrique. - Google Patents
Installation de communication radioélectrique.Info
- Publication number
- CH285638A CH285638A CH285638DA CH285638A CH 285638 A CH285638 A CH 285638A CH 285638D A CH285638D A CH 285638DA CH 285638 A CH285638 A CH 285638A
- Authority
- CH
- Switzerland
- Prior art keywords
- radio communication
- communication facility
- facility
- radio
- communication
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US34098A US2621251A (en) | 1948-06-19 | 1948-06-19 | High-frequency preemphasis for pulse code modulation |
Publications (1)
Publication Number | Publication Date |
---|---|
CH285638A true CH285638A (fr) | 1952-09-15 |
Family
ID=21874295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH285638D CH285638A (fr) | 1948-06-19 | 1949-06-18 | Installation de communication radioélectrique. |
Country Status (6)
Country | Link |
---|---|
US (1) | US2621251A (fr) |
BE (1) | BE489677A (fr) |
CH (1) | CH285638A (fr) |
FR (1) | FR988765A (fr) |
GB (1) | GB661554A (fr) |
NL (1) | NL147080B (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2857513A (en) * | 1953-07-21 | 1958-10-21 | Bell Telephone Labor Inc | Signal generator for testing telephotograph circuits |
GB1047366A (fr) * | 1964-07-22 | |||
BE754708A (fr) * | 1969-08-29 | 1971-01-18 | Thomson Csf | Perfectionnements aux dispositifs de transmission digitalisee de signaux de type telephonique |
US4700361A (en) * | 1983-10-07 | 1987-10-13 | Dolby Laboratories Licensing Corporation | Spectral emphasis and de-emphasis |
US4758805A (en) * | 1983-10-28 | 1988-07-19 | Nippondenso Co., Ltd. | High frequency interference prevention filter for electric instruments |
EP0169053B1 (fr) * | 1984-07-16 | 1990-10-10 | Nippondenso Co., Ltd. | Filtre HF pour instruments électroniques |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1743132A (en) * | 1928-01-28 | 1930-01-14 | American Telephone & Telegraph | Equalization of carrier systems |
GB497111A (en) * | 1936-11-27 | 1938-12-13 | Marconi Wireless Telegraph Co | Improvements in or relating to frequency modulated carrier wave systems |
US2212338A (en) * | 1938-04-28 | 1940-08-20 | Bell Telephone Labor Inc | Frequency modulation |
BE472015A (fr) * | 1940-02-19 | |||
US2362000A (en) * | 1941-12-20 | 1944-11-07 | Rca Corp | Reception of frequency modulated waves |
US2392546A (en) * | 1942-02-20 | 1946-01-08 | Rca Corp | Pulse modulation receiver |
US2397157A (en) * | 1943-02-12 | 1946-03-26 | Rca Corp | Wave length modulation system |
-
0
- BE BE489677D patent/BE489677A/xx unknown
- NL NL686800710A patent/NL147080B/xx unknown
-
1948
- 1948-06-19 US US34098A patent/US2621251A/en not_active Expired - Lifetime
-
1949
- 1949-06-17 FR FR988765D patent/FR988765A/fr not_active Expired
- 1949-06-18 CH CH285638D patent/CH285638A/fr unknown
- 1949-12-16 GB GB32297/49A patent/GB661554A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE489677A (fr) | |
FR988765A (fr) | 1951-08-31 |
GB661554A (en) | 1951-11-21 |
NL147080B (nl) | |
US2621251A (en) | 1952-12-09 |
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