Ultra wide bandwidth communications method and system

Pulse or digital communications – Transmitters

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C375S354000, C375S130000, C375S140000, C375S146000, C370S207000, C370S324000, C342S028000, C382S240000, C714S776000

Reexamination Certificate

active

10305109

ABSTRACT:
An ultra wide bandwidth, high speed, spread spectrum communications system uses short wavelets of electromagnetic energy to transmit information through objects such as walls or earth. The communication system uses baseband codes formed from time shifted and inverted wavelets to encode data on a RF signal. Typical wavelet pulse durations are on the order of 100 to 1000 picoseconds with a bandwidth of approximately 8 GHz to 1 GHz, respectively. The combination of short duration wavelets and encoding techniques are used to spread the signal energy over a an ultra wide frequency band such that the energy is not concentrated in any particular narrow band (e.g. VHF: 30-300 MHz or UHF: 300-1000 MHz) and is not detected by conventional narrow band receivers so it does not interfere with those communication systems. The use of pulse codes composed of time shifted and inverted wavelets gives the system according to the present invention has a spatial resolution on the order of 1 foot which is sufficient to minimize the negative effects of multipath interference and permit time domain rake processing.

REFERENCES:
patent: 4930140 (1990-05-01), Cripps et al.
patent: 5151702 (1992-09-01), Urkowitz
patent: 5504479 (1996-04-01), Doyle et al.
patent: 5583892 (1996-12-01), Drakul et al.
patent: 5677927 (1997-10-01), Fullerton et al.
patent: 5812081 (1998-09-01), Fullerton
patent: 5983388 (1999-11-01), Friedman et al.
patent: 6539122 (2003-03-01), Abousleman
patent: 6690741 (2004-02-01), Larrick et al.
patent: 6700939 (2004-03-01), McCorkle et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Ultra wide bandwidth communications method and system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ultra wide bandwidth communications method and system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultra wide bandwidth communications method and system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3835847

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.