US 6,982,945 B1 | ||
Baseband direct sequence spread spectrum transceiver | ||
Carroll Philip Gossett, Mountain View, Calif. (US) | ||
Assigned to Google, Inc., Mountain View, Calif. (US) | ||
Filed on Jan. 26, 2001, as Appl. No. 9/772,110. | ||
Int. Cl. H04J 11/00 (2006.01); H04B 7/216 (2006.01); H04B 1/69 (2006.01); H03C 1/52 (2006.01) |
U.S. Cl. 370—208 | 13 Claims |
1. A method for transmiting an RF signal comprising:
modulating a data signal with an orthogonal pseudo random code;
transmitting the data signal as a baseband direct sequence spread spectrum CDMA (Code Division Multiplex Access), wherein
no additional modulation is performed on the data signal before transmission and the baseband direct sequence spread spectrum
data signal is spread across DC to 30 MHz;
driving a mismatched antenna; and
actively servoing a transmit signal to cancel the transmit signal from a receive signal.
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