SYSTEM AND METHOD FOR DATA DISTRIBUTION IN VHF/UHF BANDS
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United States of America Patent
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app pub date -
Aug 3, 2015
filing date -
Oct 3, 2008
priority date (Note) -
Abandoned
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Abstract
Whitespace devices can use unused television frequencies for transmission and reception of WiFi OFDM signals. Three contiguous bands, such as former channels 2, 3, and 4, may be bonded together to define a whitespace band. In order to fit a WiFi OFDM signal into this whitespace band, a whitespace device compresses the bandwidth of each WiFi OFDM signal using a specific spectrum mask. Very low transmission power is needed for the modified WiFi OFDM signals, eliminating the need for high power amplifiers and most of the WiFi OFDM designs such as PHY and MAC can be reused with minor modifications.
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Family
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Cited Art Landscape
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