公开(公告)号：EP0784906A1

公开(公告)日：1997-07-23

申请号：EP95936249.0

申请日：1995-10-02

申请人： MOTOROLA, INC.

发明人： OLDS, Keith, Andrew ,  VATT, Gregory, Barton ,  KURBY, Christopher, Neil

IPC分类号： H04B7 ,  H04W8 ,  H04W88

CPC分类号： H04W8/245 ,  H04B7/18567 ,  H04W24/00 ,  H04W68/00 ,  H04W72/00 ,  H04W72/0453 ,  H04W84/06 ,  H04W88/022

摘要： A satellite-based, world-wide cellular messaging system (5) transmits paging messages to pagers via multiple beams (30). A message unit (2) monitors a multi-frequency, TDMA paging transmission and, in response to the number of transmission frequencies in use during a given time, switches to a predetermined one of the frequencies, dependent upon the contents of a reprogrammable table stored in the message unit. Information within the paging transmission specifies what frequencies will be used and when a paging transmission will be directed at a particular pager's cell.

公开(公告)号：EP0786144B1

公开(公告)日：2005-03-23

申请号：EP95935711.2

申请日：1995-10-02

申请人： MOTOROLA INC.

发明人： OLDS, Keith, Andrew ,  VATT, Gregory, Barton ,  KURBY, Christopher, Neil

IPC分类号： H01H67/00 ,  G08B5/22 ,  H04B7/185 ,  H04B7/00

CPC分类号： G08B3/1091 ,  G08B5/229 ,  H04B7/18567 ,  H04B7/18578 ,  H04W84/022 ,  Y02D70/21 ,  Y02D70/446

摘要： A satellite-based, world-wide cellular messaging system transmits paging messages to pagers via multiple beams. A message unit monitors multiple beams, recording the visit information for each beam, and ultimately determines the optimum beam to monitor for messages. The message unit, which conserves battery resources by entering into a sleep mode, synchronizes quickly to its message block when it awakes.

摘要翻译： 基于卫星的全球蜂窝消息系统通过多个波束发送寻呼消息到寻呼机。 消息单元监视多个波束，记录每个波束的访问信息，并且最终确定用于监视消息的最佳波束。 通过进入休眠模式节省电池资源的消息单元在唤醒时与其消息块快速同步。

公开(公告)号：EP1013011A1

公开(公告)日：2000-06-28

申请号：EP98930339.1

申请日：1998-06-17

申请人： MOTOROLA, INC.

发明人： LEOPOLD, Raymond, Joseph ,  PETERSON, Kenneth, Maynard ,  OLDS, Keith, Andrew

IPC分类号： H04B10/10

CPC分类号： H04B10/11

摘要： 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.

公开(公告)号：EP0737388A1

公开(公告)日：1996-10-16

申请号：EP95933785.0

申请日：1995-08-11

申请人： MOTOROLA, INC.

发明人： OLDS, Keith, Andrew ,  CUTLER, Victor, H., Jr. ,  DAVIEAU, Gerald, J.

IPC分类号： H04B7 ,  H04L12 ,  H04W72 ,  H04W16 ,  H04W84

CPC分类号： H04W72/082 ,  H04B7/18539 ,  H04W84/06

摘要： Methods (70, 100, 150) efficiently assign user channels in a LEO (low-earth orbit) telecommunication system (10). These methods (70, 100, 150) adapt the channel reuses based on system load or demand. These methods (70, 100, 150) achieve high capacity and minimize interference for the particular situation. Since these methods (70, 100, 150) are adaptive, they adjust to maintain efficient operation as the load conditions change.

公开(公告)号：EP0988717A1

公开(公告)日：2000-03-29

申请号：EP98928838.6

申请日：1998-05-28

申请人： MOTOROLA, INC.

发明人： OLDS, Keith, Andrew ,  KANE, John, Richard ,  KAPOOR, Vijay

IPC分类号： H04B7/185

CPC分类号： H04B7/18584

摘要： 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：EP1013011B1

公开(公告)日：2005-08-17

申请号：EP98930339.1

申请日：1998-06-17

申请人： MOTOROLA, INC.

发明人： LEOPOLD, Raymond, Joseph ,  PETERSON, Kenneth, Maynard ,  OLDS, Keith, Andrew

IPC分类号： H04B10/10

CPC分类号： H04B10/11

摘要： 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.

公开(公告)号：EP0988719A1

公开(公告)日：2000-03-29

申请号：EP98928837.8

申请日：1998-05-28

申请人： MOTOROLA, INC.

发明人： OLDS, Keith, Andrew ,  SHANEYFELT, James, Thomas ,  KANE, John, Richard ,  WAGNER, Carl, Myron

IPC分类号： H04B7/195

CPC分类号： H04B7/195

摘要： 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：EP0806095A1

公开(公告)日：1997-11-12

申请号：EP95932315.0

申请日：1995-08-25

申请人： MOTOROLA, INC.

发明人： OLDS, Keith, Andrew ,  SPICER, Tadd, Edward ,  TERRIS, David

IPC分类号： H04B7

CPC分类号： H04B7/18539

摘要： In a satellite communication system (10), communication channels are dynamically assigned in real-time based on actual demand using a regionalized channel assignment and reuse scheme. The tradeoff between system capacity and channel interference is optimized through the use of interlocking local regions (81, 82, 83). Satellite communication stations (12) within a radio line-of-sight of each other make up each local region. The communication stations of a local region change as the communication stations move through orbital positions. Channel reuse rules are adapted to system load and demand for services. Each communication station (12) establishes its local region and notifies the other communication stations within its local region whenever it assigns a communication channel to a subscriber unit. Channel assignments within each local region are maintained locally by the defining communication station.

公开(公告)号：EP0786144A1

公开(公告)日：1997-07-30

申请号：EP95935711.0

申请日：1995-10-02

申请人： MOTOROLA, INC.

发明人： OLDS, Keith, Andrew ,  VATT, Gregory, Barton ,  KURBY, Christopher, Neil

IPC分类号： G08B3 ,  G08B5 ,  H04B7 ,  H04W84

CPC分类号： G08B3/1091 ,  G08B5/229 ,  H04B7/18567 ,  H04B7/18578 ,  H04W84/022 ,  Y02D70/21 ,  Y02D70/446

摘要： A satellite-based, world-wide cellular messaging system transmits paging messages to pagers via multiple beams. A message unit monitors multiple beams, recording the visit information for each beam, and ultimately determines the optimum beam to monitor for messages. The message unit, which conserves battery resources by entering into a sleep mode, synchronizes quickly to its message block when it awakes.