SYSTEMS AND METHODS FOR TV WHITE SPACE SPECTRUM SENSING
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Oct 16, 2014
app pub date -
Jan 6, 2012
filing date -
Jan 7, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A spectrum sensor detects the presence of incumbent signals in the television-band. The spectrum sensor can detect digital Advanced Television Systems Committee (ATSC) signals below a −114 dBm signal level and wireless microphone signals below a −110 dBm signal level with false detection rates less than 10%. A radio module receives radio-frequency signals and produces an intermediate-frequency signal reflecting signal received in a selected television channel. A baseband processor module receives the intermediate-frequency signal, digitizes it, and processes the digital data to detecting whether an incumbent signal is present in the selected channel. The processing may include using pilot detection based on power spectrum thresholding or statistic characteristic extraction to detect ATSC signals. The processing may also include using power spectrum thresholding or covariance based signal detection to detect wireless microphone signals.
First Claim
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