公开(公告)号：US20070085735A1

公开(公告)日：2007-04-19

申请号：US11253369

申请日：2005-10-19

Applicant: Fm Bay

Inventor： Fm Bay

IPC: G01S5/14

CPC classification number: G01S19/50 ,  G01S5/14 ,  G01S19/20

Abstract: A method and system for providing integrity information from a spacecraft in a non-geostationary constellation of spacecraft. According to one aspect of the present invention, a terrestrial source is provided for generating and providing a position message to a spacecraft in the non-geostationary constellation. The position message causes the spacecraft to generate and provide a response message to the terrestrial source. The response message is processed in the terrestrial source to determine spacecraft position data. The spacecraft position data is then provided to the spacecraft and utilized by the spacecraft and other spacecraft in the constellation to provided integrity information to a navigational aid.

Abstract translation: 一种从航天器的非对地静止星座提供完整性信息的方法和系统。 根据本发明的一个方面，提供了一种地面源，用于产生位置信息并提供给非对地静止星座中的航天器。 位置消息使航天器产生并向陆地源提供响应消息。 响应消息在地面源处理，以确定航天器位置数据。 然后将航天器位置数据提供给航天器并被星座中的航天器和其他航天器利用以向导航辅助提供完整性信息。

公开(公告)号：US07020104B2

公开(公告)日：2006-03-28

申请号：US09904911

申请日：2001-07-16

Applicant: Fm Bay

Inventor： Fm Bay

IPC: H04B7/185

CPC classification number: H04H60/15 ,  G01S19/02 ,  H04H60/71 ,  H04H2201/70 ,  H04W4/06 ,  H04W8/26

Abstract: A system and method of individualizing a general broadcast by combining a user identifier with a message and encoding the combination with a user specific code. Also, source identifiers can be added to the encoded combination, and the result again encoded and broadcast via a general broadcast system.

公开(公告)号：US06590537B2

公开(公告)日：2003-07-08

申请号：US09900431

申请日：2001-07-09

Applicant: Fm Bay

Inventor： Fm Bay

IPC: G01S302

CPC classification number: G01S13/878 ,  G01S1/24

Abstract: The present invention provides a method for the real-time location of a multiplicity of Mobile Units by correlating a commanded radio signal from the specific Mobile Units received by multiple fixed antennae. The Mobile Units are equipped with a transceiver that is activated by an encoded broadcast and responds with a burst transmission on a separate frequency that is received by several well-surveyed antennae at slightly different times due to the variable distance of the Mobile Units to the Fixed Receiver antennae. The location of a Mobile Unit is determined by resolving the burst transmission time delay differences from at least four fixed antennae to eliminate the common system unknowns.