Telecommunications – Wireless distribution system – Receiver for satellite broadcast
Reexamination Certificate
2006-11-28
2006-11-28
Milord, Marceau (Department: 2618)
Telecommunications
Wireless distribution system
Receiver for satellite broadcast
C455S003060, C455S013100, C455S013200, C455S189100, C455S209000, C455S012100, C455S427000
Reexamination Certificate
active
07142809
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.
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Grunebach Georgann S.
Milord Marceau
The DirecTV Group, Inc.
LandOfFree
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