Pulse or digital communications – Transmitters – Antinoise or distortion
Reexamination Certificate
2007-02-13
2007-02-13
Corrielus, Jean B. (Department: 2611)
Pulse or digital communications
Transmitters
Antinoise or distortion
C375S285000
Reexamination Certificate
active
10131864
ABSTRACT:
Methods, apparatuses and systems are provided for identifying at least one multipath transmission delay within a reverse path data signal, determining at least one forward path pre-equalization parameter based on the transmission delay, and modifying a forward path data signal based on the forward path pre-equalization parameter. A reverse link transmission is used to help characterize the multipath delays that may exist between communicating devices. The reverse path data signal can include a training sequence or other like known/substantially-known data that can be analyzed to detect transmission delays, especially delays that extend beyond established guard intervals. Such pre-equalization techniques can be advantageously combined, for example, with antenna arrangements that support transmission diversity, spatial division transmission, and/or other like techniques.
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Brooks & Cameron PLLC
Corrielus Jean B.
Vivato, Inc.
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