GB990137A - Improvements in or relating to communications systems - Google Patents
Improvements in or relating to communications systemsInfo
- Publication number
- GB990137A GB990137A GB36040/64A GB3604064A GB990137A GB 990137 A GB990137 A GB 990137A GB 36040/64 A GB36040/64 A GB 36040/64A GB 3604064 A GB3604064 A GB 3604064A GB 990137 A GB990137 A GB 990137A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- communications systems
- frequency control
- systems
- arendt
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/10—Artificial satellites; Systems of such satellites; Interplanetary vehicles
- B64G1/1007—Communications satellites
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/145—Passive relay systems
-
- 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
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Radio Relay Systems (AREA)
- Radio Transmission System (AREA)
- Transceivers (AREA)
- Mobile Radio Communication Systems (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Transmitters (AREA)
Abstract
990,137. Signalling systems; automatic frequency control systems. H. P. HUTCHINSON, and P. R. ARENDT. May 8, 1961 [May 13, 1960], No. 36040/64. Drawings to Specification. Divided out of 990,134. Headings H3A and H4L. The subject-matter of this Specification is disclosed in Specification 990,134, but the claims relate only to the frequency control arrangements described therein for compensating for Doppler shift.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2911160A | 1960-05-13 | 1960-05-13 | |
US338179A US3262116A (en) | 1964-01-16 | 1964-01-16 | Satellite and space communications systems |
US05/060,779 USRE28725E (en) | 1960-05-13 | 1970-07-31 | Satellite and space communications systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB990137A true GB990137A (en) | 1965-04-28 |
Family
ID=27363411
Family Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36039/64A Expired GB990136A (en) | 1960-05-13 | 1961-05-08 | Improvements in or relating to communications systems |
GB36038/64A Expired GB990135A (en) | 1960-05-13 | 1961-05-08 | Improvements in or relating to communications systems |
GB36040/64A Expired GB990137A (en) | 1960-05-13 | 1961-05-08 | Improvements in or relating to communications systems |
GB36041/64A Expired GB990138A (en) | 1960-05-13 | 1961-05-08 | Improvements in or relating to communications systems |
GB16741/61A Expired GB990134A (en) | 1960-05-13 | 1961-05-08 | Improvements in satellite and space communications systems |
GB36042/64A Expired GB990139A (en) | 1960-05-13 | 1961-05-08 | Improvements in or relating to communications systems |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36039/64A Expired GB990136A (en) | 1960-05-13 | 1961-05-08 | Improvements in or relating to communications systems |
GB36038/64A Expired GB990135A (en) | 1960-05-13 | 1961-05-08 | Improvements in or relating to communications systems |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36041/64A Expired GB990138A (en) | 1960-05-13 | 1961-05-08 | Improvements in or relating to communications systems |
GB16741/61A Expired GB990134A (en) | 1960-05-13 | 1961-05-08 | Improvements in satellite and space communications systems |
GB36042/64A Expired GB990139A (en) | 1960-05-13 | 1961-05-08 | Improvements in or relating to communications systems |
Country Status (3)
Country | Link |
---|---|
US (1) | USRE28725E (en) |
DE (1) | DE1286594B (en) |
GB (6) | GB990136A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2229608A (en) * | 1986-08-01 | 1990-09-26 | Bbc Brown Boveri & Cie | Method and circuit for the frequency regulation of signals |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2124060A (en) * | 1982-07-12 | 1984-02-08 | Spt Video Limited | Improvements in or relating to circuit arrangements for automatic selection of television sound frequency |
US5645248A (en) * | 1994-08-15 | 1997-07-08 | Campbell; J. Scott | Lighter than air sphere or spheroid having an aperture and pathway |
GB2318482B (en) * | 1996-10-16 | 2001-06-13 | Ico Services Ltd | Communication system |
US6226494B1 (en) * | 1997-09-23 | 2001-05-01 | Teledesic Llc | System and method for intermittent satellite communication with a fixed antenna |
US6771627B1 (en) | 1997-10-15 | 2004-08-03 | Ico Services Limited | Method of operating a mobile station for diversity communication |
US6628941B2 (en) | 1999-06-29 | 2003-09-30 | Space Data Corporation | Airborne constellation of communications platforms and method |
US7356390B2 (en) * | 1999-06-29 | 2008-04-08 | Space Data Corporation | Systems and applications of lighter-than-air (LTA) platforms |
WO2002087112A2 (en) * | 2001-04-18 | 2002-10-31 | Space Data Corporation | Unmanned lighter-than-air safe termination and recovery methods |
US6714521B2 (en) * | 2000-12-29 | 2004-03-30 | Space Resources International Ltd. | System and method for implementing a constellation of non-geostationary satellites that provides simplified satellite tracking |
US9643706B2 (en) | 2001-04-18 | 2017-05-09 | Space Data Corporation | Systems and applications of lighter-than-air (LTA) platforms |
US9632503B2 (en) | 2001-04-18 | 2017-04-25 | Space Data Corporation | Systems and applications of lighter-than-air (LTA) platforms |
US9908608B2 (en) | 2001-04-18 | 2018-03-06 | Space Data Corporation | Systems and applications of lighter-than-air (LTA) platforms |
BR112017013836B1 (en) | 2014-12-24 | 2022-05-24 | Space Data Corporation | Detachment of a platform by pending collision |
MX2017008552A (en) | 2014-12-24 | 2018-03-15 | Space Data Corp | Techniques for intelligent balloon/airship launch and recovery window location. |
US10059421B2 (en) | 2014-12-30 | 2018-08-28 | Space Data Corporation | Multifunctional balloon membrane |
US10418702B2 (en) * | 2016-09-09 | 2019-09-17 | Viasat, Inc. | Methods and systems for performing antenna pointing to overcome effects of atmospheric scintillation |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2140130A (en) * | 1934-05-05 | 1938-12-13 | Western Electric Co | Radio system |
DE877325C (en) * | 1940-04-04 | 1953-05-21 | Telefunken Gmbh | Transmission device with changed directionality of the transmitter depending on the transmission conditions |
US2929056A (en) * | 1947-11-05 | 1960-03-15 | Robert M Page | Simultaneous lobe comparison, pulse echo locator system |
US2627021A (en) * | 1949-07-07 | 1953-01-27 | Rca Corp | Airborne transoceanic radio relay system |
US2966583A (en) * | 1955-12-12 | 1960-12-27 | Karl F Ross | Diversity transmission system for beyond-the-horizon signaling |
US3035169A (en) * | 1956-10-03 | 1962-05-15 | Gen Electric Co Ltd | Radio relay system with automatic channel selection based upon signal strength |
GB830021A (en) * | 1957-04-02 | 1960-03-09 | Standard Telephones Cables Ltd | Improvements in or relating to radio communication systems |
US3036210A (en) * | 1959-11-02 | 1962-05-22 | Space General Corp | Electronically scanning antenna empolying plural phase-locked loops to produce optimum directivity |
-
1961
- 1961-05-08 GB GB36039/64A patent/GB990136A/en not_active Expired
- 1961-05-08 GB GB36038/64A patent/GB990135A/en not_active Expired
- 1961-05-08 GB GB36040/64A patent/GB990137A/en not_active Expired
- 1961-05-08 GB GB36041/64A patent/GB990138A/en not_active Expired
- 1961-05-08 GB GB16741/61A patent/GB990134A/en not_active Expired
- 1961-05-08 GB GB36042/64A patent/GB990139A/en not_active Expired
- 1961-05-12 DE DEA37417A patent/DE1286594B/en active Pending
-
1970
- 1970-07-31 US US05/060,779 patent/USRE28725E/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2229608A (en) * | 1986-08-01 | 1990-09-26 | Bbc Brown Boveri & Cie | Method and circuit for the frequency regulation of signals |
Also Published As
Publication number | Publication date |
---|---|
GB990136A (en) | 1965-04-28 |
GB990138A (en) | 1965-04-28 |
GB990135A (en) | 1965-04-28 |
GB990139A (en) | 1965-04-28 |
USRE28725E (en) | 1976-02-24 |
GB990134A (en) | 1965-04-28 |
DE1286594B (en) | 1969-01-09 |
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