Resources Contact Us Home
Satellite communication system providing multi-gateway diversity to a mobile user terminal

Image Number 4 for United States Patent #6661996.

Disclosed herein is a method for operating a satellite communications system as well as a method for providing a larger effective gateway coverage area, and a system that operates in accordance with the methods. The methods include steps of (a) establishing a call connection between a terrestrial telecommunications network and a user terminal via a first gateway and at least one satellite; and (b) while the call connection is established, coupling the user terminal to the terrestrial telecommunications network via a second gateway and at least one further satellite. The step of coupling includes a step of conveying call speech or data information between the first gateway and the second gateway over an inter-gateway communications link. By so linking multiple gateways each gateway experiences an increase in its effective coverage area, as an on-going call can be continued even after a user terminal moves from a first gateway's coverage area into a second gateway's coverage area.

  Recently Added Patents
System, method and computer program product for monitoring and controlling network connections from a supervisory operating system
Transmitting apparatus and retransmitting method
Semiconductor process
Method for driving electrophoretic display device, electrophoretic display device, and electronic device
High performance actuator motor
Automatic logical position adjustment of multiple screens
Method and apparatus for sensing an input object relative to a sensing region of an ultrasound sensor device
  Randomly Featured Patents
Tiered achievement system
Rapid characterization of polymers
Method of and apparatus for controlling thermal gradient in a load lock chamber
System and method for providing private inference control
Hierarchical immutable content-addressable memory processor
Omega firearms suppressor
Lottery ticket validation system
Black optic display
Sonar sand detection
Wheel or wheel cover