Invention Grant
- Patent Title: Device and method to locally fill gaps in spotbeam satellite systems with frequency re-use
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Application No.: US11583209Application Date: 2006-10-19
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Publication No.: US07308230B2Publication Date: 2007-12-11
- Inventor: John P. Godwin
- Applicant: John P. Godwin
- Applicant Address: US CA El Segundo
- Assignee: The DIRECTV Group, Inc.
- Current Assignee: The DIRECTV Group, Inc.
- Current Assignee Address: US CA El Segundo
- Main IPC: H04H1/00
- IPC: H04H1/00

Abstract:
Systems and methods for transmitting and receiving diverse signals across regions using a minimum of frequency capacity and maintaining compatibility with the heritage system. A system of the invention comprises at least one broadcast transmitter for transmitting a broadcast signal in a first frequency band to a receiver, at least one gapfiller transmitter for transmitting a gapfiller signal in a second frequency band to the receiver and at least one set of reuse transmitters for transmitting a plurality of spotbeam signals in the first frequency band to define coverage regions and at least one coverage gap where the spotbeam signals are not transmitted. A method of the invention comprises receiving a first signal, receiving a second signal, generating a first intermediate frequency (IF) signal from the first signal, generating a second IF signal from the second signal, filtering the second IF signal to produce a filtered second IF signal and combining the filtered second IF signal and the first IF signal.
Public/Granted literature
- US20070037512A1 Device and method to locally fill gaps in spotbeam satellite systems with frequency re-use Public/Granted day:2007-02-15
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