DE699830C - system - Google Patents
systemInfo
- Publication number
- DE699830C DE699830C DE1936D0072613 DED0072613D DE699830C DE 699830 C DE699830 C DE 699830C DE 1936D0072613 DE1936D0072613 DE 1936D0072613 DE D0072613 D DED0072613 D DE D0072613D DE 699830 C DE699830 C DE 699830C
- Authority
- DE
- Germany
- Prior art keywords
- channel
- channels
- frequency
- carrier
- pair
- 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
- H04J—MULTIPLEX COMMUNICATION
- H04J1/00—Frequency-division multiplex systems
- H04J1/02—Details
- H04J1/04—Frequency-transposition arrangements
- H04J1/045—Filters applied to frequency transposition
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL456270X | 1935-04-30 | ||
DES0123063 | 1936-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE699830C true DE699830C (de) | 1940-12-07 |
Family
ID=25998937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1936D0072613 Expired DE699830C (de) | 1935-04-30 | 1936-04-28 | system |
Country Status (6)
Country | Link |
---|---|
US (1) | US2156278A (no) |
BE (1) | BE415104A (no) |
DE (1) | DE699830C (no) |
FR (2) | FR810818A (no) |
GB (2) | GB456270A (no) |
NL (1) | NL42529C (no) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE928110C (de) * | 1943-02-12 | 1955-05-23 | Aeg | Vierdraht-Traegerfrequenzuebertragungssystem |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2479701A (en) * | 1944-02-07 | 1949-08-23 | William C De Vry | Transmitting system |
BE459652A (no) * | 1944-05-08 | 1945-09-29 | ||
GB615922A (en) * | 1945-05-02 | 1949-01-13 | Philips Nv | Improvements in multiplex carrier-wave telephony |
US2621325A (en) * | 1946-08-20 | 1952-12-09 | Radio Electr Soc Fr | Plural modulation multiplex system |
US2574326A (en) * | 1947-12-02 | 1951-11-06 | Rca Corp | Generating groups of currents |
US7447436B2 (en) * | 1999-12-29 | 2008-11-04 | Forster Energy Llc | Optical communications using multiplexed single sideband transmission and heterodyne detection |
-
0
- BE BE415104D patent/BE415104A/xx unknown
- NL NL42529D patent/NL42529C/xx active
-
1936
- 1936-04-16 GB GB11004/36A patent/GB456270A/en not_active Expired
- 1936-04-25 US US76382A patent/US2156278A/en not_active Expired - Lifetime
- 1936-04-28 DE DE1936D0072613 patent/DE699830C/de not_active Expired
- 1936-04-29 FR FR810818D patent/FR810818A/fr not_active Expired
-
1937
- 1937-06-15 FR FR823061D patent/FR823061A/fr not_active Expired
- 1937-06-16 GB GB16756/37A patent/GB474021A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE928110C (de) * | 1943-02-12 | 1955-05-23 | Aeg | Vierdraht-Traegerfrequenzuebertragungssystem |
Also Published As
Publication number | Publication date |
---|---|
US2156278A (en) | 1939-05-02 |
FR810818A (fr) | 1937-03-31 |
GB456270A (en) | 1936-11-05 |
FR823061A (fr) | 1938-01-13 |
NL42529C (no) | |
GB474021A (en) | 1937-10-25 |
BE415104A (no) |
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