WO2002011319A1 - Method and apparatus for tone tracking in wireless optical communication systems - Google Patents
Method and apparatus for tone tracking in wireless optical communication systems Download PDFInfo
- Publication number
- WO2002011319A1 WO2002011319A1 PCT/US2001/041193 US0141193W WO0211319A1 WO 2002011319 A1 WO2002011319 A1 WO 2002011319A1 US 0141193 W US0141193 W US 0141193W WO 0211319 A1 WO0211319 A1 WO 0211319A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- signal
- tracking
- modulated
- light signal
- receiver
- Prior art date
Links
Classifications
-
- 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
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/112—Line-of-sight transmission over an extended range
- H04B10/1121—One-way transmission
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01956155A EP1312173A1 (en) | 2000-07-28 | 2001-06-26 | Method and apparatus for tone tracking in wireless optical communication systems |
JP2002515731A JP4920859B2 (en) | 2000-07-28 | 2001-06-26 | Method and apparatus for tone tracking in a wireless optical communication system |
AU2001278183A AU2001278183A1 (en) | 2000-07-28 | 2001-06-26 | Method and apparatus for tone tracking in wireless optical communication systems |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/627,819 | 2000-07-28 | ||
US09/627,819 US6483621B1 (en) | 2000-07-28 | 2000-07-28 | Method and apparatus for tone tracking in wireless optical communication systems |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002011319A1 true WO2002011319A1 (en) | 2002-02-07 |
Family
ID=24516270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2001/041193 WO2002011319A1 (en) | 2000-07-28 | 2001-06-26 | Method and apparatus for tone tracking in wireless optical communication systems |
Country Status (6)
Country | Link |
---|---|
US (1) | US6483621B1 (en) |
EP (1) | EP1312173A1 (en) |
JP (1) | JP4920859B2 (en) |
CN (1) | CN1466827A (en) |
AU (1) | AU2001278183A1 (en) |
WO (1) | WO2002011319A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017200726A1 (en) * | 2016-05-17 | 2017-11-23 | Google Llc | Acquisition and tracking apparatus for free space optical communications |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6584245B1 (en) * | 1996-05-06 | 2003-06-24 | Teracomm Research, Inc | High speed data link including a superconductive plate assembly for use in a data transmission scheme and method |
US6674974B1 (en) | 2000-07-28 | 2004-01-06 | Terabeam Corporation | Method and apparatus for tracking in an optical communications system |
US6768876B1 (en) * | 2000-07-28 | 2004-07-27 | Terabeam Corporation | Method and apparatus for tracking an optical communications system |
US20020071160A1 (en) * | 2000-10-16 | 2002-06-13 | Andrew Pavelchek | Establishment and maintenance of optical links between optical transceiver nodes in free-space optical communications networks |
US6941076B1 (en) * | 2001-05-16 | 2005-09-06 | Terabeam Corporation | Tone modulation for out-of-band communication in a free-space optical communication link |
US7680364B2 (en) * | 2001-10-09 | 2010-03-16 | Infinera Corporation | Wavelength locking and power control systems for multi-channel photonic integrated circuits (PICS) |
US7389052B2 (en) * | 2002-01-30 | 2008-06-17 | Texas Instruments Incorporated | Calibration method for station orientation |
US20040057730A1 (en) * | 2002-09-18 | 2004-03-25 | Harry Littlejohn | Control processor for use with a transceiver in an optical wireless network |
US6961680B2 (en) * | 2002-12-27 | 2005-11-01 | Corning Incorporated | Synthesized high speed digital filters |
US20040183790A1 (en) * | 2003-02-27 | 2004-09-23 | Miller Richard L. | Customer order communication apparatus and methods |
DE60324670D1 (en) * | 2003-07-29 | 2008-12-24 | Alcatel Lucent | Method and apparatus for erasing an external interface effect in the active tracking track for a free-space optical communication |
GB0408122D0 (en) * | 2004-04-13 | 2004-05-19 | Koninkl Philips Electronics Nv | Improvements relating to reception in optical networks |
US20070297808A1 (en) * | 2005-05-17 | 2007-12-27 | Andrew Pavelchek | Establishment and maintenance of optical links between optical transceiver nodes in free-space optical communications networks |
US20140255039A1 (en) * | 2013-03-05 | 2014-09-11 | Phase Sensitive Innovations, Inc | Establishing optical coherence using free-space optical links |
US10419975B1 (en) * | 2015-12-11 | 2019-09-17 | Spectranet, Inc. | Parallel multi-bit low latency wireless messaging |
US10371508B1 (en) | 2018-04-04 | 2019-08-06 | X Development Llc | Method for alignment of phase-sensitive tracking systems using variable delay offsets |
US10277321B1 (en) * | 2018-09-06 | 2019-04-30 | Bae Systems Information And Electronic Systems Integration Inc. | Acquisition and pointing device, system, and method using quad cell |
Citations (8)
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US5062150A (en) * | 1989-01-23 | 1991-10-29 | Massachusetts Institute Of Technology | Fiber-based free-space optical system |
US5710652A (en) * | 1992-08-27 | 1998-01-20 | Trex Communications | Laser communication transceiver and system |
US5777768A (en) * | 1995-09-01 | 1998-07-07 | Astroterra Corporation | Multiple transmitter laser link |
US5790291A (en) * | 1995-12-07 | 1998-08-04 | Lucent Technologies Inc. | Beam steering and tracking of laser communication links by dual-quadrant tracker and photodiode assembly |
US6091528A (en) * | 1996-12-17 | 2000-07-18 | Kabushiki Kaisha Toshiba | Optical communication system of space propagation type |
US6097522A (en) * | 1996-12-06 | 2000-08-01 | Oerlikon Contraves Ag | Method and device for aligning an optical transmission and reception beam in satellite connections |
US6219133B1 (en) * | 1997-10-09 | 2001-04-17 | Seiko Epson Corporation | Spatial optical transmission device and method of spatial optical transmission |
US6271953B1 (en) * | 1998-09-02 | 2001-08-07 | Harris Corporation | Method and system for optical free space communications using non-mechanical beam steering |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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NL8301179A (en) * | 1983-04-01 | 1984-11-01 | Philips Nv | HF SIGNAL RECEIVER FITTED WITH A PAIR OF PARALLEL SIGNAL ROADS. |
JPS6221334A (en) * | 1985-07-20 | 1987-01-29 | Nec Corp | Space propagation type optical communication equipment |
US4918396A (en) * | 1989-04-05 | 1990-04-17 | At&T Bell Laboratories | Monitoring and/or control of optical amplifiers |
JP2846212B2 (en) * | 1993-04-21 | 1999-01-13 | 国際電信電話株式会社 | Monitoring signal receiving method and apparatus |
JP3302141B2 (en) * | 1993-11-16 | 2002-07-15 | キヤノン株式会社 | Optical space communication method |
JPH07307703A (en) * | 1994-05-11 | 1995-11-21 | Mitsubishi Electric Corp | Optical space communication equipment and mirror drive mechanism for optical space communication equipment |
JP3311187B2 (en) * | 1995-01-26 | 2002-08-05 | キヤノン株式会社 | Bidirectional optical space transmission equipment |
JP3311197B2 (en) * | 1995-03-22 | 2002-08-05 | キヤノン株式会社 | Bidirectional optical space transmission equipment |
FR2744866B1 (en) * | 1996-02-13 | 1998-03-20 | Alcatel Submarcom | OPTICAL SIGNAL TRANSMISSION SYSTEM INCLUDING A REPEATER MONITORING SYSTEM |
US5841563A (en) * | 1996-08-21 | 1998-11-24 | Bell Communications Research, Inc. | Method and system for efficient optical transmission of NTSC video |
JPH114196A (en) * | 1997-06-11 | 1999-01-06 | Toshiba Corp | Optical communication system and optical transmitter therefor |
US6631018B1 (en) * | 1997-08-27 | 2003-10-07 | Nortel Networks Limited | WDM optical network with passive pass-through at each node |
JP3490292B2 (en) * | 1998-05-18 | 2004-01-26 | 三菱電機株式会社 | Optical transmission device and its wavelength maintenance device |
-
2000
- 2000-07-28 US US09/627,819 patent/US6483621B1/en not_active Expired - Lifetime
-
2001
- 2001-06-26 WO PCT/US2001/041193 patent/WO2002011319A1/en not_active Application Discontinuation
- 2001-06-26 AU AU2001278183A patent/AU2001278183A1/en not_active Abandoned
- 2001-06-26 EP EP01956155A patent/EP1312173A1/en not_active Withdrawn
- 2001-06-26 JP JP2002515731A patent/JP4920859B2/en not_active Expired - Fee Related
- 2001-06-26 CN CNA01816417XA patent/CN1466827A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5062150A (en) * | 1989-01-23 | 1991-10-29 | Massachusetts Institute Of Technology | Fiber-based free-space optical system |
US5710652A (en) * | 1992-08-27 | 1998-01-20 | Trex Communications | Laser communication transceiver and system |
US5777768A (en) * | 1995-09-01 | 1998-07-07 | Astroterra Corporation | Multiple transmitter laser link |
US5790291A (en) * | 1995-12-07 | 1998-08-04 | Lucent Technologies Inc. | Beam steering and tracking of laser communication links by dual-quadrant tracker and photodiode assembly |
US6097522A (en) * | 1996-12-06 | 2000-08-01 | Oerlikon Contraves Ag | Method and device for aligning an optical transmission and reception beam in satellite connections |
US6091528A (en) * | 1996-12-17 | 2000-07-18 | Kabushiki Kaisha Toshiba | Optical communication system of space propagation type |
US6219133B1 (en) * | 1997-10-09 | 2001-04-17 | Seiko Epson Corporation | Spatial optical transmission device and method of spatial optical transmission |
US6271953B1 (en) * | 1998-09-02 | 2001-08-07 | Harris Corporation | Method and system for optical free space communications using non-mechanical beam steering |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017200726A1 (en) * | 2016-05-17 | 2017-11-23 | Google Llc | Acquisition and tracking apparatus for free space optical communications |
US10039103B2 (en) | 2016-05-17 | 2018-07-31 | X Development Llc | Acquisition and tracking apparatus for free space optical communications |
US10420108B2 (en) | 2016-05-17 | 2019-09-17 | X Development Llc | Acquisition and tracking apparatus for free space optical communications |
DE102017109807B4 (en) * | 2016-05-17 | 2020-02-13 | X Development LLC (n.d.G.d. Staates Delaware) | Method and communication terminal for optical communication in free space |
DE102017012318B3 (en) * | 2016-05-17 | 2020-10-22 | X Development LLC (n.d.G.d. Staates Delaware) | PROCEDURE IN ADDITION TO ASSOCIATED FIRST COMMUNICATION DEVICE AND NON-VOLATILE, MATERIAL, COMPUTER-READABLE STORAGE MEDIUM |
Also Published As
Publication number | Publication date |
---|---|
JP4920859B2 (en) | 2012-04-18 |
AU2001278183A1 (en) | 2002-02-13 |
CN1466827A (en) | 2004-01-07 |
US6483621B1 (en) | 2002-11-19 |
EP1312173A1 (en) | 2003-05-21 |
JP2004505541A (en) | 2004-02-19 |
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