JPS5076911A - - Google Patents
Info
- Publication number
- JPS5076911A JPS5076911A JP49125323A JP12532374A JPS5076911A JP S5076911 A JPS5076911 A JP S5076911A JP 49125323 A JP49125323 A JP 49125323A JP 12532374 A JP12532374 A JP 12532374A JP S5076911 A JPS5076911 A JP S5076911A
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/208—Frequency-division multiple access [FDMA]
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/411,541 US3942115A (en) | 1973-10-31 | 1973-10-31 | Dual pilot redundant AFC system for satellite communications system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5076911A true JPS5076911A (enExample) | 1975-06-24 |
| JPS5654096B2 JPS5654096B2 (enExample) | 1981-12-23 |
Family
ID=23629358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12532374A Expired JPS5654096B2 (enExample) | 1973-10-31 | 1974-10-30 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3942115A (enExample) |
| JP (1) | JPS5654096B2 (enExample) |
| CA (1) | CA1033416A (enExample) |
| DE (1) | DE2450860C2 (enExample) |
| FR (1) | FR2250242B1 (enExample) |
| GB (1) | GB1444488A (enExample) |
| NL (1) | NL7414177A (enExample) |
| SE (1) | SE409797B (enExample) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5732145A (en) * | 1980-08-04 | 1982-02-20 | Nec Corp | Pilot control system |
| JPH0244928A (ja) * | 1988-08-05 | 1990-02-14 | Nec Corp | 衛星通信地球局送信電力制御方式 |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1583342A (en) * | 1976-07-30 | 1981-01-28 | Marconi Co Ltd | Satellite communication systems |
| US4105973A (en) * | 1976-10-15 | 1978-08-08 | Bell Telephone Laboratories, Incorporated | Multibeam, digitally modulated, time division, switched satellite communications system |
| AU549343B2 (en) * | 1981-06-08 | 1986-01-23 | British Telecommunications Public Limited Company | Phase locking |
| CA1196961A (en) * | 1981-11-16 | 1985-11-19 | Goro Oshima | Earth station transmission power control system for keeping an eirp of down link signals constant irrespective of weather |
| JPS6033746A (ja) * | 1983-08-04 | 1985-02-21 | Nec Corp | 衛星回線監視方式 |
| US4638315A (en) * | 1984-06-20 | 1987-01-20 | Westinghouse Electric Corp. | Rotor tip synthetic aperture radar |
| US4688257A (en) * | 1984-07-17 | 1987-08-18 | General Electric Company | Secure wireless communication system utilizing locally synchronized noise signals |
| US4790009A (en) * | 1984-10-29 | 1988-12-06 | Victor Company Of Japan, Ltd. | Scrambler system |
| GB2229874B (en) * | 1989-02-04 | 1992-09-16 | Plessey Co Plc | Improvements relating to communication systems |
| US5036523A (en) * | 1989-10-03 | 1991-07-30 | Geostar Corporation | Automatic frequency control of satellite transmitted spread spectrum signals |
| US5390348A (en) * | 1992-02-12 | 1995-02-14 | Creative Digital Inc. | System for tracking and correcting drift and dispersion in satellite transmission signals |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3065420A (en) * | 1960-09-15 | 1962-11-20 | Cutler Hammer Inc | Signal translation system with interconnected channels |
| US3418579A (en) * | 1964-09-08 | 1968-12-24 | Comm And Systems Inc | Satellite communication synchronizing system |
-
1973
- 1973-10-31 US US05/411,541 patent/US3942115A/en not_active Expired - Lifetime
-
1974
- 1974-10-25 DE DE2450860A patent/DE2450860C2/de not_active Expired
- 1974-10-28 SE SE7413501A patent/SE409797B/xx unknown
- 1974-10-30 NL NL7414177A patent/NL7414177A/xx not_active Application Discontinuation
- 1974-10-30 JP JP12532374A patent/JPS5654096B2/ja not_active Expired
- 1974-10-31 GB GB4724074A patent/GB1444488A/en not_active Expired
- 1974-10-31 CA CA212,756A patent/CA1033416A/en not_active Expired
- 1974-10-31 FR FR7436510A patent/FR2250242B1/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5732145A (en) * | 1980-08-04 | 1982-02-20 | Nec Corp | Pilot control system |
| JPH0244928A (ja) * | 1988-08-05 | 1990-02-14 | Nec Corp | 衛星通信地球局送信電力制御方式 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2450860C2 (de) | 1984-10-31 |
| CA1033416A (en) | 1978-06-20 |
| SE409797B (sv) | 1979-09-03 |
| JPS5654096B2 (enExample) | 1981-12-23 |
| GB1444488A (enExample) | 1976-07-28 |
| SE7413501L (enExample) | 1975-05-02 |
| US3942115A (en) | 1976-03-02 |
| NL7414177A (nl) | 1975-05-02 |
| FR2250242B1 (enExample) | 1978-04-14 |
| DE2450860A1 (de) | 1975-05-15 |
| FR2250242A1 (enExample) | 1975-05-30 |