FR988494A - Système de transmission radiophonique - Google Patents
Système de transmission radiophoniqueInfo
- Publication number
- FR988494A FR988494A FR988494DA FR988494A FR 988494 A FR988494 A FR 988494A FR 988494D A FR988494D A FR 988494DA FR 988494 A FR988494 A FR 988494A
- Authority
- FR
- France
- Prior art keywords
- transmission system
- radio transmission
- radio
- transmission
- Prior art date
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/68—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for wholly or partially suppressing the carrier or one side band
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/038—Seam welding; Backing means; Inserts using moulding means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2693577X | 1947-09-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR988494A true FR988494A (fr) | 1951-08-28 |
Family
ID=19875350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR988494D Expired FR988494A (fr) | 1947-09-03 | 1948-09-01 | Système de transmission radiophonique |
Country Status (4)
Country | Link |
---|---|
US (1) | US2693577A (fr) |
BE (1) | BE484646A (fr) |
FR (1) | FR988494A (fr) |
NL (1) | NL134559C (fr) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1745415A (en) * | 1926-10-29 | 1930-02-04 | American Telephone & Telegraph | Carrier amplitude control system |
DE609540C (de) * | 1930-01-02 | 1935-02-20 | Int Standard Electric Corp | Anlage fuer Hochfrequenznachrichtenuebermittlung mit gespreizten Seitenbaendern |
US1984451A (en) * | 1931-09-15 | 1934-12-18 | American Telephone & Telegraph | Short wave radio signaling |
US2070666A (en) * | 1934-12-29 | 1937-02-16 | Bell Telephone Labor Inc | Modulating system |
GB454954A (en) * | 1935-04-10 | 1936-10-12 | Marconi Wireless Telegraph Co | Improvements in or relating to modulated carrier wave receivers |
-
0
- NL NL134559D patent/NL134559C/xx active
- BE BE484646D patent/BE484646A/xx unknown
-
1948
- 1948-09-01 FR FR988494D patent/FR988494A/fr not_active Expired
-
1950
- 1950-09-22 US US186192A patent/US2693577A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2693577A (en) | 1954-11-02 |
NL134559C (fr) | |
BE484646A (fr) |
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