Transmit signal combining to allow passive recovery in a spread spectrum receiver
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Dec 28, 2006
app pub date -
Jun 13, 2006
filing date -
Jun 13, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method for transmitting a spreading data signal and an intelligence signal to allow a passive recovery. Before transmission, the spreading data signal and the intelligence signal are filtered by a high-pass filter and a low-pass filter, respectively. The filtered spreading data signal and the intelligence signal are then summed to compose a composite intelligence/spreading signal (CISS). Due to the high-pass and low-pass filtering, the spreading data signal and the intelligence signal of the CISS are separated in the frequency domain. Next, the CISS is modulated by a RF modulator before transmitting to a remote receiver. As the spreading data signal and the intelligence signal of the CISS are separated in the frequency domain, the remote receiver can easily recover the intelligence signal from the received modulated CISS without complicated conversion devices.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully