USRE32905E - Satellite communications system and apparatus - Google Patents
Satellite communications system and apparatus Download PDFInfo
- Publication number
- USRE32905E USRE32905E US07/229,737 US22973788A USRE32905E US RE32905 E USRE32905 E US RE32905E US 22973788 A US22973788 A US 22973788A US RE32905 E USRE32905 E US RE32905E
- Authority
- US
- United States
- Prior art keywords
- data
- antenna
- satellite
- station
- spread spectrum
- 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 - Lifetime
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- 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
- H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radio Relay Systems (AREA)
Abstract
Description
M=G.sub.p -(L.sub.sys +(S/N).sub.out).
chip rate÷number of chips per bit=data rate.
Claims (22)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07229737 USRE32905F1 (en) | 1980-10-20 | 1988-08-03 | Satellite communications system and apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/198,296 US4455651A (en) | 1980-10-20 | 1980-10-20 | Satellite communications system and apparatus |
US07229737 USRE32905F1 (en) | 1980-10-20 | 1988-08-03 | Satellite communications system and apparatus |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US06/198,296 Reissue US4455651A (en) | 1980-10-20 | 1980-10-20 | Satellite communications system and apparatus |
US06795868 Continuation | 1985-11-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
USRE32905E true USRE32905E (en) | 1989-04-11 |
USRE32905F1 USRE32905F1 (en) | 1992-11-10 |
Family
ID=26893646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07229737 Expired - Lifetime USRE32905F1 (en) | 1980-10-20 | 1988-08-03 | Satellite communications system and apparatus |
Country Status (1)
Country | Link |
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US (1) | USRE32905F1 (en) |
Cited By (87)
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US5063571A (en) | 1989-12-27 | 1991-11-05 | Nynex Corporation | Method and apparatus for increasing the data rate for a given symbol rate in a spread spectrum system |
US5073900A (en) * | 1990-03-19 | 1991-12-17 | Mallinckrodt Albert J | Integrated cellular communications system |
US5077754A (en) * | 1989-04-24 | 1991-12-31 | Kabushiki Kaisha Kenwood | Tau-dither circuit |
EP0493904A2 (en) * | 1990-12-31 | 1992-07-08 | AT&T Corp. | Method and apparatus for reducing effects of multiple access interference in a radio receiver in a code division multiple access communication system |
US5274626A (en) * | 1989-02-03 | 1993-12-28 | Nec Corporation | Earth station capable of carrying out communication without a control station |
EP0584617A2 (en) * | 1992-08-26 | 1994-03-02 | Siemens Aktiengesellschaft | Data transmission system by satellite |
US5297162A (en) * | 1993-06-04 | 1994-03-22 | Motorola, Inc. | System and method for bit timing synchronization in an adaptive direct sequence CDMA communication system |
US5301354A (en) * | 1989-11-30 | 1994-04-05 | Motorola, Inc. | Satellite based global paging system |
US5343305A (en) * | 1990-10-25 | 1994-08-30 | Oki Electric Industry Co., Ltd. | Multiple addressing facsimile system |
US5359624A (en) * | 1993-06-07 | 1994-10-25 | Motorola, Inc. | System and method for chip timing synchronization in an adaptive direct sequence CDMA communication system |
WO1994029985A1 (en) * | 1993-06-04 | 1994-12-22 | Motorola Inc. | A communication method for an adaptive direct sequence cdma communication system |
US5454009A (en) * | 1994-01-13 | 1995-09-26 | Scientific-Atlanta, Inc. | Method and apparatus for providing energy dispersal using frequency diversity in a satellite communications system |
US5537397A (en) * | 1994-06-07 | 1996-07-16 | Aloha Networks, Inc. | Spread aloha CDMA data communications |
US5594780A (en) * | 1991-10-10 | 1997-01-14 | Space Systems/Loral, Inc. | Satellite communication system that is coupled to a terrestrial communication network and method |
US5619525A (en) * | 1995-06-06 | 1997-04-08 | Globalstar L.P. | Closed loop power control for low earth orbit satellite communications system |
US5623269A (en) * | 1993-05-07 | 1997-04-22 | Space Systems/Loral, Inc. | Mobile communication satellite payload |
US5625639A (en) * | 1993-10-22 | 1997-04-29 | Nec Corporation | Spread spectrum method for transmitting an information signal as a radio signal at a high speed |
US5634190A (en) * | 1995-06-06 | 1997-05-27 | Globalstar L.P. | Low earth orbit communication satellite gateway-to-gateway relay system |
US5640386A (en) * | 1995-06-06 | 1997-06-17 | Globalstar L.P. | Two-system protocol conversion transceiver repeater |
US5649318A (en) * | 1995-03-24 | 1997-07-15 | Terrastar, Inc. | Apparatus for converting an analog c-band broadcast receiver into a system for simultaneously receiving analog and digital c-band broadcast television signals |
US5657323A (en) * | 1995-07-24 | 1997-08-12 | Motorola, Inc. | Method and apparatus for signal transmission in a communication system |
US5664006A (en) * | 1995-06-07 | 1997-09-02 | Globalstar L.P. | Method for accounting for user terminal connection to a satellite communications system |
US5697050A (en) * | 1995-08-23 | 1997-12-09 | Globalstar L.P. | Satellite beam steering reference using terrestrial beam steering terminals |
US5734962A (en) * | 1996-07-17 | 1998-03-31 | General Electric Company | Satellite communications system utilizing parallel concatenated coding |
US5745485A (en) * | 1995-06-19 | 1998-04-28 | Aloha Networks, Inc. | Dual code multiple access for wireless data networks |
US5745084A (en) * | 1994-06-17 | 1998-04-28 | Lusignan; Bruce B. | Very small aperture terminal & antenna for use therein |
US5787336A (en) * | 1994-11-08 | 1998-07-28 | Space Systems/Loral, Inc. | Satellite communication power management system |
US5797082A (en) * | 1994-06-17 | 1998-08-18 | Terrastar, Inc. | Communication receiver for receiving satellite broadcasts |
US5802445A (en) * | 1995-07-13 | 1998-09-01 | Globalstar L.P. | Methods and apparatus for providing user RF exposure monitoring and control in a satellite communications system |
US5812932A (en) * | 1995-11-17 | 1998-09-22 | Globalstar L.P. | Mobile satellite user information request system and methods |
US5812538A (en) * | 1995-06-06 | 1998-09-22 | Globalstar L.P. | Multiple satellite repeater capacity loading with multiple spread spectrum gateway antennas |
US5859874A (en) * | 1994-05-09 | 1999-01-12 | Globalstar L.P. | Multipath communication system optimizer |
US5867109A (en) * | 1995-06-06 | 1999-02-02 | Globalstar L.P. | Satellite repeater diversity resource management system |
US5875180A (en) * | 1997-02-06 | 1999-02-23 | Globalstar L.P. | Satellite telephone interference avoidance system |
US5884142A (en) * | 1997-04-15 | 1999-03-16 | Globalstar L.P. | Low earth orbit distributed gateway communication system |
US5896558A (en) * | 1996-12-19 | 1999-04-20 | Globalstar L.P. | Interactive fixed and mobile satellite network |
US5918157A (en) * | 1997-03-18 | 1999-06-29 | Globalstar L.P. | Satellite communications system having distributed user assignment and resource assignment with terrestrial gateways |
WO1999038336A2 (en) * | 1998-01-21 | 1999-07-29 | Globalstar, L.P. | Multiple vocoder mobile satellite telephone system |
US6021309A (en) | 1997-05-22 | 2000-02-01 | Globalstar L.P. | Channel frequency allocation for multiple-satellite communication network |
CN1049314C (en) * | 1993-06-25 | 2000-02-09 | Cd无线电公司 | Radio frequency broadcasting systems and methods using two low-cost geosynchronous satellites |
US6064857A (en) | 1997-04-15 | 2000-05-16 | Globalstar L.P. | Dual mode satellite telephone with hybrid battery/capacitor power supply |
US6072768A (en) | 1996-09-04 | 2000-06-06 | Globalstar L.P. | Automatic satellite/terrestrial mobile terminal roaming system and method |
US6201961B1 (en) | 1996-09-13 | 2001-03-13 | Globalstar L. P. | Use of reference phone in point-to-point satellite communication system |
US6240124B1 (en) | 1995-06-06 | 2001-05-29 | Globalstar L.P. | Closed loop power control for low earth orbit satellite communications system |
US6243409B1 (en) | 1997-07-15 | 2001-06-05 | Novatel, Inc. | Global navigation satellite system receiver with blanked-PRN code correlation |
US6253080B1 (en) | 1999-07-08 | 2001-06-26 | Globalstar L.P. | Low earth orbit distributed gateway communication system |
US6272325B1 (en) | 1995-07-13 | 2001-08-07 | Globalstar L.P. | Method and apparatus for considering user terminal transmitted power during operation in a plurality of different communication systems |
US6272339B1 (en) | 1997-04-15 | 2001-08-07 | Globalstar L.P. | Global mobile paging system |
US6272316B1 (en) | 1995-11-17 | 2001-08-07 | Globalstar L.P. | Mobile satellite user information request system and methods |
US6301476B1 (en) | 1997-10-09 | 2001-10-09 | Globalstar L.P. | Satellite communication service with non-congruent sub-beam coverage |
US6304996B1 (en) | 1999-03-08 | 2001-10-16 | General Electric Company | High-speed turbo decoder |
US20020089956A1 (en) * | 1995-12-07 | 2002-07-11 | Hans-Christian Haugli | Wireless packet data distributed communications system |
US20020122468A1 (en) * | 2001-01-12 | 2002-09-05 | Terion, Inc. | Quasi orthogonal hybrid walsh-PN codes for CDMA application in HF modems |
US6463279B1 (en) | 1999-11-17 | 2002-10-08 | Globalstar L.P. | Channel frequency allocation for multiple-satellite communication network |
US6473597B1 (en) | 2000-04-12 | 2002-10-29 | Thomas M. Johnson | Method and apparatus for modeling transmitter bandwidth for telecommunications analysis |
US6516437B1 (en) | 2000-03-07 | 2003-02-04 | General Electric Company | Turbo decoder control for use with a programmable interleaver, variable block length, and multiple code rates |
US6535544B1 (en) * | 1997-09-15 | 2003-03-18 | Andrzej Partyka | Frequency hopping system for intermittent transmission |
US20030115533A1 (en) * | 1998-08-21 | 2003-06-19 | Asada Haruhiko H. | Source coding for interference reduction |
US6587687B1 (en) | 1996-10-21 | 2003-07-01 | Globalstar L.P. | Multiple satellite fade attenuation control system |
US6590889B1 (en) | 1997-08-11 | 2003-07-08 | Gte Internetworking Incorporated | Data communications system and hybrid time-code multiplexing method |
US6594792B1 (en) | 1999-04-30 | 2003-07-15 | General Electric Company | Modular turbo decoder for expanded code word length |
US6625204B1 (en) | 1998-04-24 | 2003-09-23 | Aloha Networks, Inc. | Synchronization and bit detection in a single spreading sequence SAMA receiver |
US20030224798A1 (en) * | 2002-05-31 | 2003-12-04 | Serge Willenegger | Dynamic channelization code allocation |
US6661996B1 (en) | 1998-07-14 | 2003-12-09 | Globalstar L.P. | Satellite communication system providing multi-gateway diversity to a mobile user terminal |
US20040028411A1 (en) * | 2002-08-07 | 2004-02-12 | Ses-Americom, Incorporated | System and method for transmitting high-bandwidth signals over a satellite communications system |
US6715120B1 (en) | 1999-04-30 | 2004-03-30 | General Electric Company | Turbo decoder with modified input for increased code word length and data rate |
US6728293B1 (en) | 1999-09-14 | 2004-04-27 | Andrzej Partyka | Hopping pattern generation method in frequency hopping system for intermittent transmission |
US6731223B1 (en) | 2000-01-15 | 2004-05-04 | Andrzej Partyka | Meshed telemetry system |
US20040092228A1 (en) * | 2002-11-07 | 2004-05-13 | Force Charles T. | Apparatus and method for enabling use of low power satellites, such as C-band, to broadcast to mobile and non-directional receivers, and signal design therefor |
US6870875B1 (en) | 1999-09-30 | 2005-03-22 | Andrzej Partyka | Transmission of urgent messages in frequency hopping system for intermittent transmission |
US6894975B1 (en) | 2000-01-15 | 2005-05-17 | Andrzej Partyka | Synchronization and access of the nodes in a communications network |
US6925105B1 (en) | 2000-05-01 | 2005-08-02 | Andrzej Partyka | Overhead reduction in system for intermittent transmission |
US6940452B2 (en) | 2003-09-29 | 2005-09-06 | Northrop Grumman Corporation | Reducing co-channel interference in satellite communications systems by antenna re-pointing |
US6967974B1 (en) | 1999-09-30 | 2005-11-22 | Andrzej Partyka | Transmission of urgent messages in telemetry system |
US20060268738A1 (en) * | 2003-04-23 | 2006-11-30 | Goerke Thomas E | Radio network assignment and access system |
US20070008916A1 (en) * | 1995-12-07 | 2007-01-11 | Hans-Christian Haugli | Wireless packet data distributed communications system |
US7209495B2 (en) | 2000-09-28 | 2007-04-24 | Andrzej Partyka | Urgent messages and power-up in frequency hopping system for intemittent transmission |
US7224713B2 (en) | 1998-04-09 | 2007-05-29 | Andrzej Partyka | Telemetry system with authentication |
US20070122162A1 (en) * | 1999-12-29 | 2007-05-31 | Nortel Networks Limited | Method and apparatus for encoding optical power and non-payload data in an optical signal |
US7236508B2 (en) * | 2001-02-05 | 2007-06-26 | The Directv Group, Inc. | Application of complex codes to maximize feeder link utilization |
US20070286272A1 (en) * | 2000-03-29 | 2007-12-13 | Alereon, Inc. | Method and system for fast acquisition of ultra-wideband signals |
US20120002701A1 (en) * | 2010-06-30 | 2012-01-05 | Comtech Ef Data Corp. | Method and System for Transmission of Identification via Metadata for Repeating Relays using Spread-Spectrum Technology |
US20120002760A1 (en) * | 2010-07-01 | 2012-01-05 | Intelleflex Corporation | Variable length correlator |
US8913647B2 (en) | 2010-04-08 | 2014-12-16 | Comtech Ef Data Corp. | Embedded meta-carrier with code progression message reassembly |
US9088346B2 (en) | 2010-06-30 | 2015-07-21 | Comtech Ef Data Corp. | System and method for a broadcast recovery carrier channel for static and dynamic carrier systems |
CN108957489B (en) * | 2018-05-29 | 2022-04-05 | 中国科学院光电研究院 | Ground test verification system and method for low-earth-orbit satellite navigation enhancement signals |
US11647478B2 (en) * | 2014-01-22 | 2023-05-09 | Maxlinear, Inc. | Network discovery in an autoconfigured backhaul transceiver |
Citations (9)
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US3596002A (en) * | 1968-10-24 | 1971-07-27 | Telefunken Patent | System for transmitting binary-coded data |
US3761813A (en) * | 1971-04-06 | 1973-09-25 | Thomson Csf | Method of telecommunication via satellite and systems using this method |
US4030033A (en) * | 1975-06-13 | 1977-06-14 | Lowell Technological Institute Research Foundation | Method and apparatus for transmitting messages to and from remote locations |
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US4135156A (en) * | 1974-06-20 | 1979-01-16 | Sanders Associates, Inc. | Satellite communications system incorporating ground relay station through which messages between terminal stations are routed |
US4164628A (en) * | 1977-06-06 | 1979-08-14 | International Telephone And Telegraph Corporation | Processor for multiple, continuous, spread spectrum signals |
US4172257A (en) * | 1976-07-20 | 1979-10-23 | Siemens Aktiengesellschaft | Ground station antenna for satellite communication systems |
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-
1988
- 1988-08-03 US US07229737 patent/USRE32905F1/en not_active Expired - Lifetime
Patent Citations (9)
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US3596002A (en) * | 1968-10-24 | 1971-07-27 | Telefunken Patent | System for transmitting binary-coded data |
US3761813A (en) * | 1971-04-06 | 1973-09-25 | Thomson Csf | Method of telecommunication via satellite and systems using this method |
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