-
11.
公开(公告)号:GB2320163B
公开(公告)日:2001-03-28
申请号:GB9722726
申请日:1997-10-29
Applicant: MOTOROLA INC
Inventor: OLDS KEITH ANDREW
Abstract: A hybrid constellation satellite communication system (100) is established using two or more satellite types (110, 120) in different constellations. The two or more satellite types (110, 120) are connected to system control centers (140) via control links (105, 135) which provides a communication path from the satellite constellations to the system control centers (140). The two or more satellite types (110, 120) are also connected to subscriber equipment (150) via subscriber links (155, 145) which provides a communication path from the satellite constellations to the subscriber equipment (150). The first type of satellites (110) are interconnected using upper inter-satellite links (115). The second type of satellites (120) are interconnected using lower inter-satellite links (125). Control services and other time delay non-sensitive services are provided using communication channels established using the first type of satellites (110). Time delay sensitive services are provided using communication channels established using the second type of satellites (120). There are no inter-satellite links between satellites in the two different constellations.
-
公开(公告)号:IT1299505B1
公开(公告)日:2000-03-16
申请号:ITRM980374
申请日:1998-06-10
Applicant: MOTOROLA INC
Inventor: OLDS KEITH ANDREW , KANE JOHN RICHARD , 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).
-
公开(公告)号:NO20000595D0
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.
-
14.
公开(公告)号:ITRM980468A1
公开(公告)日:2000-01-13
申请号:ITRM980468
申请日:1998-07-13
Applicant: MOTOROLA INC
Inventor: LEOPOLD RAYMOND JOSEPH , OLDS KEITH ANDREW , PETERSON KENNETH MAYNARD
-
公开(公告)号:DK0655871T3
公开(公告)日:1999-09-27
申请号:DK94117930
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.
-
公开(公告)号:GR3029858T3
公开(公告)日:1999-07-30
申请号:GR990400946
申请日:1999-04-05
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.
-
公开(公告)号:IT1296120B1
公开(公告)日:1999-06-09
申请号:ITRM970695
申请日:1997-11-12
Applicant: MOTOROLA INC
Inventor: OLDS KEITH ANDREW
Abstract: A hybrid constellation satellite communication system (100) is established using two or more satellite types (110, 120) in different constellations. The two or more satellite types (110, 120) are connected to system control centers (140) via control links (105, 135) which provides a communication path from the satellite constellations to the system control centers (140). The two or more satellite types (110, 120) are also connected to subscriber equipment (150) via subscriber links (155, 145) which provides a communication path from the satellite constellations to the subscriber equipment (150). The first type of satellites (110) are interconnected using upper inter-satellite links (115). The second type of satellites (120) are interconnected using lower inter-satellite links (125). Control services and other time delay non-sensitive services are provided using communication channels established using the first type of satellites (110). Time delay sensitive services are provided using communication channels established using the second type of satellites (120). There are no inter-satellite links between satellites in the two different constellations.
-
公开(公告)号:GB2308957B
公开(公告)日:1999-04-14
申请号:GB9707048
申请日:1995-08-25
Applicant: MOTOROLA INC
Inventor: OLDS KEITH ANDREW , SPICER TADD EDWARD , TERRIS DAVID
-
公开(公告)号:FR2764754A1
公开(公告)日:1998-12-18
申请号:FR9807422
申请日:1998-06-12
Applicant: MOTOROLA INC
Inventor: OLDS KEITH ANDREW , SHANEYFELT JAMES THOMAS , KANE JOHN RICHARD , WAGNER CARL WAGNER
Abstract: A method and apparatus have been described for combining multiple satellite constellations into a cooperative network. A GEO tier (10) of satellites receives information to be broadcasted to earth. The GEO tier (10) receives the information from global hubs (30), regional hubs (32), and local hubs (34). Local program material is combined with regional and global program material by either the regional hub (32) or a GEO satellite (40).
-
公开(公告)号:FR2758041A1
公开(公告)日:1998-07-03
申请号:FR9716482
申请日:1997-12-24
Applicant: MOTOROLA INC
Inventor: OLDS KEITH ANDREW , DAVIEAU GERALD JOSEPH
IPC: H04L12/56 , H04W16/06 , H04W16/10 , H04W28/08 , H04W36/08 , H04W72/04 , H04W72/06 , H04W88/08 , H04Q7/28
Abstract: A channel management process (68) is performed by a parent base station (36) of a radio telecommunications system (20) that exchanges channel usage data with neighbor base stations (38) within its local group (34). When channel usage data indicates a channel assignment conflict, that conflict is resolved in the base station (22) having the lesser loading of the pair of conflicting base stations (22). Channel usage requests received by a base station (22) are prioritized and sequentially processed, channels (58) being assigned for inter-cell handoff requests, then intra-cell handoff requests after inter-cell handoff requests, even when that assignment creates a conflict, and then channels (58) being assigned to new call requests after handoff requests if that assignment does not create a conflict.
-
-
-
-
-
-
-
-
-