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公开(公告)号:NO20000595L
公开(公告)日:2000-02-04
申请号:NO20000595
申请日:2000-02-04
Applicant: MOTOROLA INC
Inventor: LEOPOLD RAYMOND JOSEPH , PETERSON KENNETH MAYNARD , OLDS KEITH ANDREW
Abstract: A laser transmitter (200, 300) includes a femptosecond pulse forming circuit (214, 308) and an ultra high-speed optical switch (218, 304) which enable the transmitter (200, 300) to generate a modulated pulse stream having pulses with widths of under 200 femptoseconds. The transmitted pulse stream is processed by a laser detector (500), including a wideband optical detector (504) and pulse stretching circuit (506), that regenerates information included in the modulated pulse stream.
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公开(公告)号:GB2304005B
公开(公告)日:2000-01-12
申请号:GB9616070
申请日:1996-07-31
Applicant: MOTOROLA INC
Inventor: LEEPER DAVID G , GREGG JR RALPH C , OLDS KEITH ANDREW
Abstract: A communication system (10), having dynamic nodes such as satellites (12), require narrow-tolerance communication parameters such as timing and frequency. A voice subscriber unit (26) establishes a traffic channel (17) by negotiating communication parameters. A user of voice subscriber unit (26) generates inherent voice pauses in communications. A data subscriber unit (31) possess a datagram for delivery through communication system (10). Instead of negotiating a dedicated traffic channel for delivery of the datagram, data subscriber unit (31) monitors an active voice subscriber unit (26) and determines if the communication parameters used by voice subscriber unit (26) are compatible for data subscriber unit (31). Data subscriber unit (31), upon detecting a voice pause by voice subscriber unit (26), transmits the datagram to satellite (12) using the negotiated communication parameters of voice subscriber unit (26).
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公开(公告)号:ITRM980374A1
公开(公告)日:1999-12-10
申请号:ITRM980374
申请日:1998-06-10
Applicant: MOTOROLA INC
Inventor: KANE JOHN RICHARD , OLDS KEITH ANDREW , KAPOOR VIJAY
IPC: H04B7/185
Abstract: In a communication system having Low Earth Orbit (LEO) satellites (210), one or more Mission Operations Control Centers (MOCCs) (220), one or more Distributed Virtual Network Managers (DVNMs) (230), and several types of Customer Premises Equipment (CPE) (250, 260, 270, and 280), individual service providers (20) are able to control the network services they provide independently from other service providers (20) through local management of the DVNMs (230).
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74.
公开(公告)号:ITRM970695A1
公开(公告)日:1999-05-12
申请号:ITRM970695
申请日:1997-11-12
Applicant: MOTOROLA INC
Inventor: OLDS KEITH ANDREW
IPC: B64G1/10 , H04B7/185 , H04B7/195 , H04M20060101
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公开(公告)号:GB2300091B
公开(公告)日:1999-04-14
申请号:GB9613504
申请日:1995-08-11
Applicant: MOTOROLA INC
Inventor: OLDS KEITH ANDREW , CUTLER JR VICTOR HAWES , DAVIEAU GERALD J
Abstract: Methods efficiently assign user channels in a LEO (low-earth orbit) telecommunication system. These methods adapt the channel reuses based on system load or demand. These methods achieve high capacity and minimize interference for the particular situation. Since these methods are adaptive, they adjust to maintain efficient operation as the load conditions change.
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公开(公告)号:DE69416646D1
公开(公告)日:1999-04-01
申请号:DE69416646
申请日:1994-11-14
Applicant: MOTOROLA INC
Inventor: OLDS KEITH ANDREW
IPC: H04B7/26 , H04B7/15 , H04B7/185 , H04W4/02 , H04W4/06 , H04W40/24 , H04W48/04 , H04W48/12 , H04W60/00 , H04W64/00 , H04W76/02 , H04W84/06 , H04Q7/22 , H04B7/195
Abstract: A communication system (10) includes a population of mobile units (24) which communicate with a control station (29). Communications take place between the control station (29) and the mobile units (24) so that the system (10) may gain knowledge about the mobile units' locations. The mobile units (24) occasionally initiate such communications automatically. The control station (29) sends data defining a target area (72, FIG. 5) to the mobile units. The mobile units (24) reside in the target areas (72) when the target areas (72) are first assigned, but the mobile units (24) are free to move. The control station (29) transmits broadcast signals to geographically spaced apart cells (36, FIG. 2). The broadcast signals convey current data identifying the service areas covered by the cells (36). The mobile units (24) automatically initiate communications when their assigned target areas (72) do not coincide with the service areas for the broadcast signals they can receive.
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公开(公告)号:FR2766997A1
公开(公告)日:1999-02-05
申请号:FR9809992
申请日:1998-08-04
Applicant: MOTOROLA INC
Inventor: LEOPOLD RAYMOND JOSEPH , PETERSON KENNETH MAYNARD , OLDS KEITH ANDREW
IPC: H01S3/10 , G02B23/00 , H04B10/00 , H04B10/10 , H04B10/118 , H04B10/22 , H04B10/105
Abstract: A laser transmitter (200, 300) includes a femptosecond pulse forming circuit (214, 308) and an ultra high-speed optical switch (218, 304) which enable the transmitter (200, 300) to generate a modulated pulse stream having pulses with widths of under 200 femptoseconds. The transmitted pulse stream is processed by a laser detector (500), including a wideband optical detector (504) and pulse stretching circuit (506), that regenerates information included in the modulated pulse stream.
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公开(公告)号:AU8053998A
公开(公告)日:1998-12-30
申请号:AU8053998
申请日:1998-05-28
Applicant: MOTOROLA INC
Inventor: OLDS KEITH ANDREW , SHANEYFELT JAMES THOMAS , KANE JOHN RICHARD , WAGNER CARL MYRON
IPC: H04B7/195
Abstract: A method and apparatus have been described for combining multiple satellite constellations into a cooperative network. A GEO tier of satellites receives information to be broadcasted to earth. The GEO tier receives the information from global hubs, regional hubs, and local hubs. Local program material is combined with regional and global program material by either the regional hub or a GEO satellite.
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79.
公开(公告)号:AU3743497A
公开(公告)日:1998-03-19
申请号:AU3743497
申请日:1997-07-31
Applicant: MOTOROLA INC
Inventor: DANIEL BRIAN MICHAEL , LEOPOLD RAYMOND JOSEPH , OLDS KEITH ANDREW
Abstract: A method and apparatus for routing signals through a system (10) which has multiple destination nodes (12, 14) assigns one or more unique carrier frequencies to each destination node (12, 14). When a signal is received (502) by a transceiver (12), the transceiver (12) evaluates (504) the carrier frequency of the signal, and determines (506) to which destination node (12, 14) that carrier frequency is assigned. The determination (506) is made using a table (200) which associates carrier frequencies to destination nodes (12, 14). The table (200) is created (304) and updated by a control facility (20) which distributes (306) the table (200) to the transceivers (12). Once the transceiver (12) determines (506) the destination node (12, 14), the transceiver (12) can route the signal toward that destination node (12, 14).
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公开(公告)号:FR2749472A1
公开(公告)日:1997-12-05
申请号:FR9706524
申请日:1997-05-28
Applicant: MOTOROLA INC
Inventor: OLDS KEITH ANDREW , PETERSON KENNETH MAYNARD , LOCKE JOHN , DANIEL BRIAN
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