SG48270A1 - Alternating sequential half duplex communication system - Google Patents
Alternating sequential half duplex communication systemInfo
- Publication number
- SG48270A1 SG48270A1 SG1996008554A SG1996008554A SG48270A1 SG 48270 A1 SG48270 A1 SG 48270A1 SG 1996008554 A SG1996008554 A SG 1996008554A SG 1996008554 A SG1996008554 A SG 1996008554A SG 48270 A1 SG48270 A1 SG 48270A1
- Authority
- SG
- Singapore
- Prior art keywords
- communication
- transceiver
- duty cycle
- communication signal
- terminals
- Prior art date
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
- H04B1/69—Spread spectrum techniques
- H04B1/713—Spread spectrum techniques using frequency hopping
- H04B1/7136—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
- G02B6/29305—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating as bulk element, i.e. free space arrangement external to a light guide
- G02B6/2931—Diffractive element operating in reflection
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
- G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
- G02B6/29325—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide of the slab or planar or plate like form, i.e. confinement in a single transverse dimension only
- G02B6/29328—Diffractive elements operating in reflection
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
- G02B6/29382—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM including at least adding or dropping a signal, i.e. passing the majority of signals
- G02B6/29383—Adding and dropping
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4246—Bidirectionally operating package structures
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4249—Packages, e.g. shape, construction, internal or external details comprising arrays of active devices and fibres
- G02B6/425—Optical features
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08004—Construction or shape of optical resonators or components thereof incorporating a dispersive element, e.g. a prism for wavelength selection
- H01S3/08009—Construction or shape of optical resonators or components thereof incorporating a dispersive element, e.g. a prism for wavelength selection using a diffraction grating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/14—External cavity lasers
- H01S5/141—External cavity lasers using a wavelength selective device, e.g. a grating or etalon
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/506—Multiwavelength transmitters
-
- 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
- H04B7/212—Time-division multiple access [TDMA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/16—Half-duplex systems; Simplex/duplex switching; Transmission of break signals non-automatically inverting the direction of transmission
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29331—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by evanescent wave coupling
- G02B6/29332—Wavelength selective couplers, i.e. based on evanescent coupling between light guides, e.g. fused fibre couplers with transverse coupling between fibres having different propagation constant wavelength dependency
- G02B6/29334—Grating-assisted evanescent light guide couplers, i.e. comprising grating at or functionally associated with the coupling region between the light guides, e.g. with a grating positioned where light fields overlap in the coupler
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
- H01S5/4031—Edge-emitting structures
- H01S5/4062—Edge-emitting structures with an external cavity or using internal filters, e.g. Talbot filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
- H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar
- H01S5/4087—Array arrangements, e.g. constituted by discrete laser diodes or laser bar emitting more than one wavelength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Plasma & Fusion (AREA)
- Radio Relay Systems (AREA)
- Mobile Radio Communication Systems (AREA)
- Bidirectional Digital Transmission (AREA)
- Optical Communication System (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Amplifiers (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/145,176 US4979170A (en) | 1988-01-19 | 1988-01-19 | Alternating sequential half duplex communication system |
Publications (1)
Publication Number | Publication Date |
---|---|
SG48270A1 true SG48270A1 (en) | 1998-04-17 |
Family
ID=22511938
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG1996008554A SG48270A1 (en) | 1988-01-19 | 1988-12-21 | Alternating sequential half duplex communication system |
Country Status (10)
Country | Link |
---|---|
US (1) | US4979170A (fr) |
EP (1) | EP0417099B1 (fr) |
JP (1) | JP2974350B2 (fr) |
AT (1) | ATE152559T1 (fr) |
AU (2) | AU3059789A (fr) |
CA (1) | CA1310696C (fr) |
DE (1) | DE3855894T2 (fr) |
HK (1) | HK1008130A1 (fr) |
SG (1) | SG48270A1 (fr) |
WO (1) | WO1989006883A1 (fr) |
Families Citing this family (168)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5303286A (en) * | 1991-03-29 | 1994-04-12 | Space Systems/Loral, Inc. | Wireless telephone/satellite roaming system |
US4928274A (en) * | 1988-01-19 | 1990-05-22 | Qualcomm, Inc. | Multiplexed address control in a TDM communication system |
US5638375A (en) * | 1988-11-30 | 1997-06-10 | Motorola, Inc. | AGC isolation of information in TDMA systems |
US5274836A (en) * | 1989-08-08 | 1993-12-28 | Gde Systems, Inc. | Multiple encoded carrier data link |
WO1991013502A1 (fr) * | 1990-02-27 | 1991-09-05 | Motorola, Inc. | Sauts entre frequences porteuses partagees |
US5327572A (en) * | 1990-03-06 | 1994-07-05 | Motorola, Inc. | Networked satellite and terrestrial cellular radiotelephone systems |
US5073900A (en) * | 1990-03-19 | 1991-12-17 | Mallinckrodt Albert J | Integrated cellular communications system |
US5446756A (en) * | 1990-03-19 | 1995-08-29 | Celsat America, Inc. | Integrated cellular communications system |
US6749122B1 (en) * | 1990-05-25 | 2004-06-15 | Broadcom Corporation | Multi-level hierarchial radio-frequency system communication system |
JP3190660B2 (ja) * | 1990-06-13 | 2001-07-23 | ソニー株式会社 | メッセージ伝送システム |
US5303393A (en) * | 1990-11-06 | 1994-04-12 | Radio Satellite Corporation | Integrated radio satellite response system and method |
US5402413A (en) | 1991-04-08 | 1995-03-28 | Omnipoint Corporation | Three-cell wireless communication system |
US5694414A (en) * | 1991-05-13 | 1997-12-02 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5796772A (en) * | 1991-05-13 | 1998-08-18 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5790587A (en) * | 1991-05-13 | 1998-08-04 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5887020A (en) * | 1991-05-13 | 1999-03-23 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5815525A (en) * | 1991-05-13 | 1998-09-29 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
US5285469A (en) | 1991-06-03 | 1994-02-08 | Omnipoint Data Corporation | Spread spectrum wireless telephone system |
US5526404A (en) * | 1991-10-10 | 1996-06-11 | Space Systems/Loral, Inc. | Worldwide satellite telephone system and a network coordinating gateway for allocating satellite and terrestrial gateway resources |
CN1038174C (zh) * | 1991-11-12 | 1998-04-22 | 美国西塞特公司 | 综合蜂窝状通信网系统 |
WO1993012597A1 (fr) * | 1991-12-16 | 1993-06-24 | Omnipoint Corporation | Systeme de publication de donnes a etalement de spectre |
US5737685A (en) * | 1992-02-25 | 1998-04-07 | Motorola, Inc. | Co-located subscriber unit to subscriber unit communication within a satellite communication system |
US5444762A (en) * | 1993-03-08 | 1995-08-22 | Aircell, Inc. | Method and apparatus for reducing interference among cellular telephone signals |
US5878346A (en) * | 1992-03-06 | 1999-03-02 | Aircell Incorporated | Nonterrestrial cellular mobile telecommunication network |
US5878345A (en) * | 1992-03-06 | 1999-03-02 | Aircell, Incorporated | Antenna for nonterrestrial mobile telecommunication system |
US5884166A (en) * | 1992-03-06 | 1999-03-16 | Aircell, Incorporated | Multidimensional cellular mobile telecommunication system |
US5832380A (en) * | 1992-03-06 | 1998-11-03 | Aircell Incorporated | Nonterrestrial cellular mobile telecommunication system |
US5263047A (en) * | 1992-07-02 | 1993-11-16 | Motorola, Inc. | Multiple cavity tuning of a transmitter output in a communication system |
US5410315A (en) * | 1992-12-08 | 1995-04-25 | Texas Instruments Incorporated | Group-addressable transponder arrangement |
US5708679A (en) * | 1993-03-11 | 1998-01-13 | Southern California Edison Company | Hitless ultra small aperture terminal satellite communication network |
US6366244B1 (en) | 1993-03-11 | 2002-04-02 | Southern California Edison Company | Planar dual band microstrip or slotted waveguide array antenna for all weather applications |
US5594936A (en) * | 1993-04-16 | 1997-01-14 | Trans Video Electronics, Inc. | Global digital video news distribution system |
US6175717B1 (en) | 1993-04-16 | 2001-01-16 | Trans Video Electronics, Inc. | Global mobile video communications system |
US7397363B2 (en) * | 1993-06-08 | 2008-07-08 | Raymond Anthony Joao | Control and/or monitoring apparatus and method |
US6005856A (en) * | 1993-11-01 | 1999-12-21 | Omnipoint Corporation | Communication protocol for spread spectrum wireless communication system |
US6094575A (en) * | 1993-11-01 | 2000-07-25 | Omnipoint Corporation | Communication system and method |
JP3692140B2 (ja) * | 1993-11-01 | 2005-09-07 | オムニポイント・コーポレイション | 2つのスペクトル拡散周波数帯を有するデュアルモード無線装置 |
US5666379A (en) * | 1993-11-01 | 1997-09-09 | Omnipoint Corporation | Best-of-M pulse position modulation detector |
US5654978A (en) * | 1993-11-01 | 1997-08-05 | Omnipoint Corporation | Pulse position modulation with spread spectrum |
US6088590A (en) * | 1993-11-01 | 2000-07-11 | Omnipoint Corporation | Method and system for mobile controlled handoff and link maintenance in spread spectrum communication |
US5594720A (en) * | 1993-11-24 | 1997-01-14 | Lucent Technologies Inc. | Multiple access cellular communication with dynamic slot allocation and reduced co-channel interferences |
US5602836A (en) * | 1993-11-24 | 1997-02-11 | Lucent Technologies Inc. | Multiple access cellular communication with circular interleaving and reduced dropped-packet runlengths |
US5420851A (en) * | 1993-11-24 | 1995-05-30 | At&T Corp. | Method of multiple access |
US5434548A (en) * | 1994-03-28 | 1995-07-18 | Qualcomm Incorporated | Coaxial-waveguide rotary coupling assemblage |
WO1995027964A1 (fr) * | 1994-04-12 | 1995-10-19 | Qualcomm Incorporated | Procede et dispositif de transport de fret au moyen d'un systeme de navigation par satellite |
US5610906A (en) * | 1994-06-29 | 1997-03-11 | Interdigital Technology Corporation | Spread-spectrum changeable base station |
JP2606145B2 (ja) * | 1994-08-15 | 1997-04-30 | 日本電気株式会社 | 衛星通信方式 |
EP0728383B1 (fr) | 1994-09-14 | 2007-08-22 | Ericsson Inc. | Adaptateur de telecommunications par satellite pour combine cellulaire |
US5625640A (en) * | 1994-09-16 | 1997-04-29 | Hughes Electronics | Apparatus for and method of broadcast satellite network return-link signal transmission |
AU706242B2 (en) * | 1994-12-12 | 1999-06-10 | Ericsson Inc. | Diversity-oriented channel allocation in a mobile communications system |
WO1996019786A1 (fr) * | 1994-12-19 | 1996-06-27 | Qualcomm Incorporated | Procede et appareil d'affichage de messages dans des systemes de communications pour vehicules |
US5734966A (en) * | 1995-01-20 | 1998-03-31 | Diablo Research Corporation | Wireless communication system for adapting to frequency drift |
US5745484A (en) | 1995-06-05 | 1998-04-28 | Omnipoint Corporation | Efficient communication system using time division multiplexing and timing adjustment control |
US5802046A (en) * | 1995-06-05 | 1998-09-01 | Omnipoint Corporation | Efficient time division duplex communication system with interleaved format and timing adjustment control |
US5689502A (en) * | 1995-06-05 | 1997-11-18 | Omnipoint Corporation | Efficient frequency division duplex communication system with interleaved format and timing adjustment control |
US5959980A (en) | 1995-06-05 | 1999-09-28 | Omnipoint Corporation | Timing adjustment control for efficient time division duplex communication |
US7929498B2 (en) | 1995-06-30 | 2011-04-19 | Interdigital Technology Corporation | Adaptive forward power control and adaptive reverse power control for spread-spectrum communications |
ZA965340B (en) | 1995-06-30 | 1997-01-27 | Interdigital Tech Corp | Code division multiple access (cdma) communication system |
US7123600B2 (en) | 1995-06-30 | 2006-10-17 | Interdigital Technology Corporation | Initial power control for spread-spectrum communications |
US7020111B2 (en) | 1996-06-27 | 2006-03-28 | Interdigital Technology Corporation | System for using rapid acquisition spreading codes for spread-spectrum communications |
US6885652B1 (en) | 1995-06-30 | 2005-04-26 | Interdigital Technology Corporation | Code division multiple access (CDMA) communication system |
JPH0918378A (ja) * | 1995-07-03 | 1997-01-17 | Matsushita Electric Ind Co Ltd | 無線回路 |
US6041046A (en) * | 1995-07-14 | 2000-03-21 | Omnipoint Corporation | Cyclic time hopping in time division multiple access communication system |
US5592175A (en) * | 1995-08-25 | 1997-01-07 | Motorola, Inc. | Location determination method and apparatus for a communication unit |
US5652750A (en) * | 1995-08-28 | 1997-07-29 | Ericsson Inc. | Optical satellite feeder links |
US5768254A (en) * | 1995-09-29 | 1998-06-16 | Lucent Technologies Inc. | Multiple access cellular communication with signal cancellation to reduce co-channel interference |
JP3212854B2 (ja) * | 1995-11-30 | 2001-09-25 | 三菱電機株式会社 | アンテナ初期値設定装置及び初期値設定方法及び衛星通信システム |
US7590083B2 (en) * | 1995-12-07 | 2009-09-15 | Transcore Link Logistics Corp. | Wireless packet data distributed communications system |
WO1997021281A1 (fr) * | 1995-12-08 | 1997-06-12 | Amsc Subsidiary Corporation | Terminal mobile de communications pour systeme de communications par satellite |
US6100792A (en) * | 1996-05-20 | 2000-08-08 | Alpine Electronics, Inc. | Car security apparatus and car security system |
US6084870A (en) * | 1996-07-22 | 2000-07-04 | Qualcomm Incorporated | Method and apparatus for the remote monitoring and configuration of electronic control systems |
US5918158A (en) * | 1996-07-24 | 1999-06-29 | Lucent Technologies Inc. | Two-way wireless messaging system |
US5937332A (en) * | 1997-03-21 | 1999-08-10 | Ericsson, Inc. | Satellite telecommunications repeaters and retransmission methods |
US6243366B1 (en) * | 1997-06-20 | 2001-06-05 | At&T Corp. | Method and apparatus for providing interactive two-way communications using a single one-way channel in satellite systems |
US6073007A (en) | 1997-07-24 | 2000-06-06 | Qualcomm Incorporated | Wireless fleet communications system for providing separable communications services |
JPH1141132A (ja) * | 1997-07-24 | 1999-02-12 | Toshiba Corp | 無線通信装置 |
US6026292A (en) * | 1997-08-19 | 2000-02-15 | Qualcomm Incorporated | Truck communication system |
US5991615A (en) * | 1997-08-18 | 1999-11-23 | Transcommunications, Inc. | Truck communication system |
US5940739A (en) * | 1997-10-24 | 1999-08-17 | Conrad; Charles | Multiple access satellite communications network |
US7006788B1 (en) | 1997-12-11 | 2006-02-28 | Dyncorp Information Systems Llc | Method and system for preventing sun transit outages in point-to-multipoint satellite systems |
US7020103B1 (en) * | 1998-03-26 | 2006-03-28 | Ericsson Inc. | Broadband communication system using point and shoot approach |
US6515976B1 (en) * | 1998-04-06 | 2003-02-04 | Ericsson Inc. | Demodulation method and apparatus in high-speed time division multiplexed packet data transmission |
US6181931B1 (en) * | 1998-08-28 | 2001-01-30 | Qualcomm Inc. | Method and apparatus for dynamic address allocation in a wireless communication system |
EP0989525A3 (fr) * | 1998-08-31 | 2001-09-19 | Kabushiki Kaisha Kobe Seiko Sho | Système de gestion pour machines de chantier |
US6124810A (en) | 1998-09-15 | 2000-09-26 | Qualcomm Incorporated | Method and apparatus for automatic event detection in a wireless communication system |
GB9826665D0 (en) * | 1998-12-03 | 1999-01-27 | Nokia Telecommunications Oy | A receiver and method of receiving |
FR2786937B1 (fr) * | 1998-12-04 | 2001-02-16 | Photonetics | Source multi-longueur d'onde |
US7215954B1 (en) | 1999-03-18 | 2007-05-08 | The Directv Group, Inc. | Resource allocation method for multi-platform communication system |
US6920309B1 (en) | 1999-03-18 | 2005-07-19 | The Directv Group, Inc. | User positioning technique for multi-platform communication system |
GB9909196D0 (en) * | 1999-04-21 | 1999-06-16 | Texas Instruments Ltd | Transfer controller with hub and ports architecture |
US6947469B2 (en) | 1999-05-07 | 2005-09-20 | Intel Corporation | Method and Apparatus for wireless spread spectrum communication with preamble processing period |
US6422628B1 (en) * | 1999-05-10 | 2002-07-23 | Veridian Erim International, Inc. | Transportable satellite communication station including double-expandable trailer |
FR2793631B1 (fr) * | 1999-05-10 | 2001-07-27 | Centre Nat Etd Spatiales | Terminal de communication bidirectionnel multmedia |
US7356494B2 (en) * | 1999-05-19 | 2008-04-08 | I.D. Systems, Inc. | Robust wireless communications system architecture and asset management applications performed thereon |
WO2000070530A1 (fr) * | 1999-05-19 | 2000-11-23 | I.D. Systems, Inc. | Systeme de location de vehicule totallement informatise |
US7656271B2 (en) * | 2002-01-09 | 2010-02-02 | I.D. Systems, Inc. | System and method for managing a remotely located asset |
US20080015955A1 (en) * | 1999-05-19 | 2008-01-17 | I.D. Systems, Inc. | Mobile asset data management system |
US6628941B2 (en) | 1999-06-29 | 2003-09-30 | Space Data Corporation | Airborne constellation of communications platforms and method |
US7203491B2 (en) | 2001-04-18 | 2007-04-10 | Space Data Corporation | Unmanned lighter-than-air safe termination and recovery methods |
US7356390B2 (en) | 1999-06-29 | 2008-04-08 | Space Data Corporation | Systems and applications of lighter-than-air (LTA) platforms |
US7215650B1 (en) | 1999-08-16 | 2007-05-08 | Viasat, Inc. | Adaptive data rate control for narrowcast networks |
US7068147B2 (en) * | 1999-12-07 | 2006-06-27 | Denso Corporation | Control information rewriting system |
US7339520B2 (en) * | 2000-02-04 | 2008-03-04 | The Directv Group, Inc. | Phased array terminal for equatorial satellite constellations |
WO2001065876A1 (fr) * | 2000-02-29 | 2001-09-07 | Qualcomm Incorporated | Terminal de communications mobile programmable avec transmissions aleatoires pendant les heures creuses |
US20010043573A1 (en) * | 2000-04-14 | 2001-11-22 | Frank Kelly | System and method for providing control of a two-way satellite system |
US6963548B1 (en) | 2000-04-17 | 2005-11-08 | The Directv Group, Inc. | Coherent synchronization of code division multiple access signals |
US6756937B1 (en) | 2000-06-06 | 2004-06-29 | The Directv Group, Inc. | Stratospheric platforms based mobile communications architecture |
US6388615B1 (en) * | 2000-06-06 | 2002-05-14 | Hughes Electronics Corporation | Micro cell architecture for mobile user tracking communication system |
US6859652B2 (en) | 2000-08-02 | 2005-02-22 | Mobile Satellite Ventures, Lp | Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis |
CA2381811C (fr) | 2000-08-02 | 2007-01-30 | Mobile Satellite Ventures Lp | Reutilisation de frequence terrestre satellite coordonnee |
US7092803B2 (en) * | 2000-08-18 | 2006-08-15 | Idsc Holdings, Llc | Remote monitoring, configuring, programming and diagnostic system and method for vehicles and vehicle components |
US6771615B1 (en) * | 2000-08-18 | 2004-08-03 | Hughes Electronics Corporation | Synchronization apparatus and method for a return link power control for satellite systems |
US6763242B1 (en) | 2000-09-14 | 2004-07-13 | The Directv Group, Inc. | Resource assignment system and method for determining the same |
US7792488B2 (en) | 2000-12-04 | 2010-09-07 | Atc Technologies, Llc | Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength |
US7181162B2 (en) | 2000-12-12 | 2007-02-20 | The Directv Group, Inc. | Communication system using multiple link terminals |
US6891813B2 (en) | 2000-12-12 | 2005-05-10 | The Directv Group, Inc. | Dynamic cell CDMA code assignment system and method |
US7103317B2 (en) * | 2000-12-12 | 2006-09-05 | The Directv Group, Inc. | Communication system using multiple link terminals for aircraft |
US6952580B2 (en) | 2000-12-12 | 2005-10-04 | The Directv Group, Inc. | Multiple link internet protocol mobile communications system and method therefor |
US7400857B2 (en) | 2000-12-12 | 2008-07-15 | The Directv Group, Inc. | Communication system using multiple link terminals |
US6559797B1 (en) | 2001-02-05 | 2003-05-06 | Hughes Electronics Corporation | Overlapping subarray patch antenna system |
US7068733B2 (en) * | 2001-02-05 | 2006-06-27 | The Directv Group, Inc. | Sampling technique for digital beam former |
US9908608B2 (en) | 2001-04-18 | 2018-03-06 | Space Data Corporation | Systems and applications of lighter-than-air (LTA) platforms |
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 |
US7155321B2 (en) | 2001-08-06 | 2006-12-26 | Idsc Holdings Llc | System, method and computer program product for remote vehicle diagnostics, monitoring, configuring and reprogramming |
US7068704B1 (en) * | 2001-09-26 | 2006-06-27 | Itt Manufacturing Enterpprises, Inc. | Embedded chirp signal for position determination in cellular communication systems |
US7212984B2 (en) * | 2001-10-29 | 2007-05-01 | Qualcomm Incorporated | Method and apparatus for providing virtual capacity to a provider of services |
US7765297B2 (en) * | 2001-11-13 | 2010-07-27 | Qualcomm Incorporated | System for providing online service reports |
KR100450815B1 (ko) * | 2002-02-01 | 2004-10-01 | 삼성전자주식회사 | 조명계 및 이를 채용한 프로젝션 디스플레이 장치 |
US20030162523A1 (en) * | 2002-02-27 | 2003-08-28 | Michael Kapolka | Vehicle telemetry system and method |
US7730208B2 (en) * | 2002-05-09 | 2010-06-01 | Hughes Network Systems, Inc. | Method and system for centrally exchanging terminal information over a meshed network |
US20040114625A1 (en) * | 2002-10-25 | 2004-06-17 | Roundy Larry Lee | Method and apparatus for simultaneous incoming digital call processing using H.221 protocol |
US20050029872A1 (en) * | 2003-08-08 | 2005-02-10 | Ehrman Kenneth S. | Universal power supply |
US7667573B2 (en) | 2005-03-01 | 2010-02-23 | I.D. Systems, Inc. | Mobile portal for RFID applications |
CA2600896A1 (fr) * | 2005-03-01 | 2006-09-08 | I.D. Systems, Inc. | Portail mobile pour applications d'identification par radiofrequence (rfid) |
KR100677481B1 (ko) * | 2005-08-04 | 2007-02-02 | 엘지전자 주식회사 | Rfid 기능을 내장한 이동 단말기의 안테나 공유 장치및 방법 |
US20070120664A1 (en) * | 2005-11-30 | 2007-05-31 | Syncro Corporation | Fire hydrant locating system |
DE102006021100A1 (de) * | 2006-05-05 | 2007-11-08 | Benq Mobile Gmbh & Co. Ohg | Verfahren zum Übertragen von Daten in einem Funknetzwerk, Funknetzwerk und Empfänger |
US8508352B2 (en) | 2006-09-07 | 2013-08-13 | Qualcomm Incorporated | Hardware continuity loop for preventing vehicle misappropriation |
US7760077B2 (en) * | 2007-06-05 | 2010-07-20 | Qualcomm Incorporated | Establishing and securing a unique wireless RF link between a tractor and a trailer using a wired connection |
US9305405B2 (en) * | 2007-06-26 | 2016-04-05 | Omnitracs, Llc | Reefer fuel tax reporting for the transport industry |
US7881753B2 (en) * | 2007-09-28 | 2011-02-01 | Broadcom Corporation | Method and system for sharing multiple antennas between TX and RX in a repeat field of polarization isolation |
US8023886B2 (en) * | 2007-09-28 | 2011-09-20 | Broadcom Corporation | Method and system for repeater with gain control and isolation via polarization |
US20090128291A1 (en) * | 2007-11-19 | 2009-05-21 | Broadcom Corporation | Method and apparatus of rfid communication during device assembly |
FR2936674B1 (fr) | 2008-09-26 | 2010-11-05 | Centre Nat Etd Spatiales | Procede d'acces de transmission sans duplexeur frequentiel |
US8682956B2 (en) * | 2011-06-09 | 2014-03-25 | Gm Global Technology Operations, Inc | Systems and methods for determining recommended media content for exchange between vehicles |
US8909641B2 (en) | 2011-11-16 | 2014-12-09 | Ptc Inc. | Method for analyzing time series activity streams and devices thereof |
US9576046B2 (en) | 2011-11-16 | 2017-02-21 | Ptc Inc. | Methods for integrating semantic search, query, and analysis across heterogeneous data types and devices thereof |
US9098312B2 (en) | 2011-11-16 | 2015-08-04 | Ptc Inc. | Methods for dynamically generating an application interface for a modeled entity and devices thereof |
CN102843178B (zh) * | 2012-07-27 | 2014-12-17 | 航天东方红卫星有限公司 | 一种兼容标准统一s波段测控体制的扩频中继测控系统 |
WO2014145084A1 (fr) | 2013-03-15 | 2014-09-18 | Ptc Inc. | Procédés de gestion d'applications à l'aide d'une modélisation et d'un étiquetage sémantiques, et dispositifs associés |
US9762637B2 (en) | 2014-03-21 | 2017-09-12 | Ptc Inc. | System and method of using binary dynamic rest messages |
US10025942B2 (en) | 2014-03-21 | 2018-07-17 | Ptc Inc. | System and method of establishing permission for multi-tenancy storage using organization matrices |
US9961058B2 (en) | 2014-03-21 | 2018-05-01 | Ptc Inc. | System and method of message routing via connection servers in a distributed computing environment |
US9350791B2 (en) | 2014-03-21 | 2016-05-24 | Ptc Inc. | System and method of injecting states into message routing in a distributed computing environment |
US10313410B2 (en) | 2014-03-21 | 2019-06-04 | Ptc Inc. | Systems and methods using binary dynamic rest messages |
US9350812B2 (en) | 2014-03-21 | 2016-05-24 | Ptc Inc. | System and method of message routing using name-based identifier in a distributed computing environment |
US9560170B2 (en) | 2014-03-21 | 2017-01-31 | Ptc Inc. | System and method of abstracting communication protocol using self-describing messages |
US9462085B2 (en) | 2014-03-21 | 2016-10-04 | Ptc Inc. | Chunk-based communication of binary dynamic rest messages |
US9467533B2 (en) | 2014-03-21 | 2016-10-11 | Ptc Inc. | System and method for developing real-time web-service objects |
WO2015143416A1 (fr) | 2014-03-21 | 2015-09-24 | Ptc Inc. | Systèmes et procédés permettant de développer et d'utiliser des applications de données en temps réel |
WO2016105522A1 (fr) | 2014-12-24 | 2016-06-30 | Space Data Corporation | Séparation de plate-forme en cas de collision imminente |
CA2972381A1 (fr) | 2014-12-24 | 2016-06-30 | Space Data Corporation | Techniques de lancement de ballon/dirigeable intelligent emplacement de fenetre de recuperation |
US10059421B2 (en) | 2014-12-30 | 2018-08-28 | Space Data Corporation | Multifunctional balloon membrane |
WO2016196142A1 (fr) * | 2015-05-31 | 2016-12-08 | Hughes Network Systems, Llc | Communications en semi-duplex pour un terminal à très petite ouverture (vsat) qui fonctionne sur un flux continu |
KR102324960B1 (ko) | 2015-06-25 | 2021-11-12 | 삼성전자 주식회사 | 통신 장치 및 이를 포함하는 전자 장치 |
US11280880B2 (en) | 2019-11-21 | 2022-03-22 | Rockwell Collins, Inc. | Single channel dual orthogonal linear polarization array |
AU2021219662A1 (en) * | 2020-02-11 | 2022-12-15 | Ast & Science, Llc | Geolocation of radio frequency devices using spaceborne phased arrays |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4009343A (en) * | 1974-12-30 | 1977-02-22 | International Business Machines Corporation | Switching and activity compression between telephone lines and digital communication channels |
DE2615198C3 (de) * | 1976-04-08 | 1979-08-16 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Nachrichtenübertragungssystem zum zweiseitig gerichteten Nachrichtenverkehr zwischen einer Hauptstation und mehreren Unterstationen über einen Satelliten |
US4172214A (en) * | 1977-03-25 | 1979-10-23 | Trw Inc. | Integrated message accounting system |
US4288862A (en) * | 1977-12-21 | 1981-09-08 | Nippon Telegraph And Telephone Public Corp. | Memory circuit |
NL7806618A (nl) * | 1978-06-20 | 1979-12-27 | Philips Nv | Satellietcommunicatiestelsel voor spraak en telegrafie. |
US4287588A (en) * | 1979-04-12 | 1981-09-01 | The United States Of America As Represented By The Secretary Of The Army | Multiple access, time-division multiplex, satellite communications system |
US4309764A (en) * | 1979-06-22 | 1982-01-05 | Bell Telephone Laboratories, Incorporated | Technique for increasing the rain margin of a satellite communication system |
US4408322A (en) * | 1980-11-07 | 1983-10-04 | Satellite Business Systems | Method and apparatus for measuring signal to noise ratio in a TDMA communications system |
AU555694B2 (en) * | 1982-02-09 | 1986-10-02 | Nippon Electric Co. Ltd. | Pager receiver |
US4504946A (en) * | 1982-06-11 | 1985-03-12 | Rca Corporation | Time division multiple access communication systems |
US4625308A (en) * | 1982-11-30 | 1986-11-25 | American Satellite Company | All digital IDMA dynamic channel allocated satellite communications system and method |
US4686672A (en) * | 1983-10-13 | 1987-08-11 | Nec Corporation | TDMA communications apparatus having adaptive burst duration |
US4549303A (en) * | 1983-12-27 | 1985-10-22 | The United States Of America As Represented By The Secretary Of The Army | Multichannel time division multiplexed trunk transmission link |
US4686673A (en) * | 1984-02-15 | 1987-08-11 | Toshinori Hotta | Synchronizing burst transmission phase control system |
US4608684A (en) * | 1984-03-26 | 1986-08-26 | Itt Corporation | Digital switching systems employing multi-channel frame association apparatus |
US4581749A (en) * | 1984-07-02 | 1986-04-08 | Motorola, Inc. | Data frequency modulator with deviation control |
JPS61120538A (ja) * | 1984-11-15 | 1986-06-07 | Nec Corp | 多方向多重通信装置 |
US4713808A (en) * | 1985-11-27 | 1987-12-15 | A T & E Corporation | Watch pager system and communication protocol |
US4675863A (en) * | 1985-03-20 | 1987-06-23 | International Mobile Machines Corp. | Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
US4617658A (en) * | 1985-04-17 | 1986-10-14 | Bell Communications Research, Inc. | Frame arrangement for multiplexing a plurality of subchannels onto a fixed rate channel |
NL8502023A (nl) * | 1985-07-15 | 1987-02-02 | Philips Nv | Werkwijze voor het schakelen van tijdsloten in een tdm-signaal en inrichting voor het uitvoeren van de werkwijze. |
DE3527330A1 (de) * | 1985-07-31 | 1987-02-05 | Philips Patentverwaltung | Digitales funkuebertragungssystem mit verbindungsbegleitenden organisationskanal im zeitmultiplexrahmen |
US4646294A (en) * | 1985-08-02 | 1987-02-24 | Gte Laboratories Incorporated | High-speed queue sequencer for a burst-switching communications system |
US4644529A (en) * | 1985-08-02 | 1987-02-17 | Gte Laboratories Incorporated | High-speed switching processor for a burst-switching communications system |
CA1261080A (fr) * | 1985-12-30 | 1989-09-26 | Shunichiro Tejima | Systeme de communication par satellite a acces multiple aleatoire et a reservation de tranches de temps |
US4928274A (en) * | 1988-01-19 | 1990-05-22 | Qualcomm, Inc. | Multiplexed address control in a TDM communication system |
-
1988
- 1988-01-19 US US07/145,176 patent/US4979170A/en not_active Expired - Lifetime
- 1988-12-21 SG SG1996008554A patent/SG48270A1/en unknown
- 1988-12-21 AT AT89902364T patent/ATE152559T1/de not_active IP Right Cessation
- 1988-12-21 WO PCT/US1988/004621 patent/WO1989006883A1/fr active IP Right Grant
- 1988-12-21 EP EP89902364A patent/EP0417099B1/fr not_active Expired - Lifetime
- 1988-12-21 JP JP1502240A patent/JP2974350B2/ja not_active Expired - Lifetime
- 1988-12-21 DE DE3855894T patent/DE3855894T2/de not_active Expired - Lifetime
- 1988-12-21 AU AU30597/89A patent/AU3059789A/en active Granted
- 1988-12-29 CA CA000587200A patent/CA1310696C/fr not_active Expired - Lifetime
-
1992
- 1992-03-17 AU AU12957/92A patent/AU640561B2/en not_active Expired
-
1998
- 1998-06-26 HK HK98107081A patent/HK1008130A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0417099A1 (fr) | 1991-03-20 |
EP0417099B1 (fr) | 1997-05-02 |
DE3855894D1 (de) | 1997-06-05 |
US4979170A (en) | 1990-12-18 |
EP0417099A4 (en) | 1991-07-31 |
AU1295792A (en) | 1992-05-21 |
ATE152559T1 (de) | 1997-05-15 |
WO1989006883A1 (fr) | 1989-07-27 |
JPH01502619A (ja) | 1989-09-07 |
DE3855894T2 (de) | 1997-12-11 |
AU640561B2 (en) | 1993-08-26 |
HK1008130A1 (en) | 1999-04-30 |
JP2974350B2 (ja) | 1999-11-10 |
CA1310696C (fr) | 1992-11-24 |
AU3059789A (en) | 1989-08-11 |
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