Method and system for securely communicating information...

Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C455S108000, C455S116000, C455S118000, C455S137000

Reexamination Certificate

active

07747274

ABSTRACT:
Amplitude modulation of multiple carriers provides a pulse width modulated train resulting in a novel and effective communication mechanism to overcome difficulties in certain RF applications, particularly in the area of Radio Frequency Identification (RFID). A novel conceptual pulse is formed and developed using a set of RF frequencies, such as ultra wideband frequencies, amplitude modulated to form a pulse width modulated binary coded signal. The concept is to wirelessly convey information only to a receiver at a specified distance or range. The RF energy may continue on in space, but receivers of the same design would only receive information from a transmitter if the receivers are located at a specified distance. Equivalent receivers at all other distances would see noise.

REFERENCES:
patent: 5547250 (1996-08-01), Childers
patent: 5633898 (1997-05-01), Kishigami et al.
patent: 6016422 (2000-01-01), Bartusiak
patent: 6078593 (2000-06-01), Eames et al.
patent: 6081527 (2000-06-01), Chappel et al.
patent: 6552661 (2003-04-01), Lastinger et al.
patent: 6574333 (2003-06-01), Manchester et al.
patent: 7099368 (2006-08-01), Santhoff et al.
patent: 2001/0008450 (2001-07-01), Nakazawa
patent: 2003/0035465 (2003-02-01), Takamura
patent: 2003/0091122 (2003-05-01), Humphreys et al.
patent: 2005/0246094 (2005-11-01), Moscatiello
patent: 2006/0187046 (2006-08-01), Kramer

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

Method and system for securely communicating information... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and system for securely communicating information..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for securely communicating information... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4230874

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