公开(公告)号：CA2189612A1

公开(公告)日：1997-07-04

申请号：CA2189612

申请日：1996-11-05

Applicant: MOTOROLA INC

Inventor： OLDS KEITH ANDREW ,  PETERSON KENNETH MAYNARD ,  LEOPOLD RAYMOND JOSEPH ,  SWAN PETER A

IPC: H04M3/00 ,  H04B7/15 ,  H04B7/185 ,  H04W8/06 ,  H04Q7/36

Abstract: A telecommunication system (10) includes a wide area communication network (12) and any number of local communication networks (14). The wide area communication network (12) includes any number of central switching offices (18), and each local communication network (14) includes at least one mobile switching center (28). Multimode subscriber units (20) can operate on either type of network (12, 14). Roaming management services are provided to roamed-upon mobile switching centers (28) with respect to roaming subscriber units (20) by the wide area communication network. For any single local communication network, roaming management services are provided through a single central switching office (18) regardless of the central switching office within the wide area communication network (12) that is a home node for a roaming subscriber unit (20).

公开(公告)号：DE19630113A1

公开(公告)日：1997-03-06

申请号：DE19630113

申请日：1996-07-25

Applicant: MOTOROLA INC

Inventor： LEEPER DAVID G ,  GREGG JUN RALPH C ,  OLDS KEITH ANDREW

IPC: H04J3/17 ,  H04B7/185 ,  H04B7/212 ,  H04Q7/38 ,  H04M11/06

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).

公开(公告)号：FR2737629A1

公开(公告)日：1997-02-07

申请号：FR9609791

申请日：1996-08-02

Applicant: MOTOROLA INC

Inventor： LEEPER DAVID G ,  GREGG RALPH C ,  OLDS KEITH ANDREW

IPC: H04J3/17 ,  H04B7/185 ,  H04B7/212

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).

公开(公告)号：FR2736498A1

公开(公告)日：1997-01-10

申请号：FR9608266

申请日：1996-07-03

Applicant: MOTOROLA INC

Inventor： ANDRESEN MICHAEL J ,  OLDS KEITH ANDREW

IPC: H04B7/185 ,  H04W40/24 ,  H04W76/02 ,  H04Q7/22

Abstract: In a dynamic communication system (90) wherein communication parameters vary appreciably between transmissions, subscriber units (200) are susceptible to link blockages resulting in a loss of successive feedback instructing subscriber units (200) of adjustments to communication parameters to be employed in a subsequent transmission on a communication link (105). A method and system are employed to predict subsequent communication parameters and employ these predictions during link blockages in an attempt to reestablish communications and upon the removal of a link blockage, a subscriber unit (200) employs the predicted communication parameters in resuming communications without requiring complex reallocation of an additional communication link.

公开(公告)号：DE19625394A1

公开(公告)日：1997-01-09

申请号：DE19625394

申请日：1996-06-25

Applicant: MOTOROLA INC

Inventor： ANDRESEN MICHAEL J ,  OLDS KEITH ANDREW

IPC: H04B7/185 ,  H04W40/24 ,  H04W76/02 ,  H04B7/005 ,  H04B17/00 ,  H04Q7/38 ,  H03H17/00

Abstract: A dynamic communications system (90) has the components or nodes dynamically aligned so that the distances and speeds change between the nodes, such as in a satellite system. The satellites (100) each represent one of the communication nodes or base stations, and rotate round or circle the earth. The satellites are floating nodes, moving in a certain relation and, if this is known, communications can be restored. The subscriber unit (200) forms the other end of the communication lines (105), while the satellites circle the earth in a path (110) in a LEO system.

公开(公告)号：ITRM960824D0

公开(公告)日：1996-12-02

申请号：ITRM960824

申请日：1996-12-02

Applicant: MOTOROLA INC

Inventor： OLDS KEITH ANDREW ,  PETERSON KENNETH MAYNARD ,  LEOPOLD RAYMOND JOSEPH ,  SWAN PETER A

IPC: H04M3/00 ,  H04B7/15 ,  H04B7/185 ,  H04W8/06

公开(公告)号：DE19581822B4

公开(公告)日：2005-02-17

申请号：DE19581822

申请日：1995-08-25

Applicant: MOTOROLA INC

Inventor： OLDS KEITH ANDREW ,  SPICER TODD EDWARD ,  TERRIS DAVID

IPC: H04B7/15 ,  H04B7/185 ,  H04Q7/36 ,  H04B7/204 ,  H04B7/005 ,  H04B7/26

Abstract: 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：IN192385B

公开(公告)日：2004-04-10

申请号：IN1613DE1995

申请日：1995-08-30

Applicant: MOTOROLA INC

Inventor： OLDS KEITH ANDREW ,  SPICER TADD EDWARD ,  TERRIES DAVID

IPC: H04B7/24

公开(公告)号：NO20000595A

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

IPC: H01S3/10 ,  G02B23/00 ,  H04B10/00 ,  H04B10/10 ,  H04B10/105 ,  H04B10/22 ,  H04B10/04

CPC classification number: H04B10/11

公开(公告)号：FR2766997B1

公开(公告)日：2000-01-21

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.