MOBILE BODY DISCRIMINATION APPARATUS FOR RAPIDLY ACQUIRING...

Communications: electrical – Selective – Interrogation response

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C340S010340, C340S572100, C340S010200, C340S010400, C340S005650, C340S870030, C455S107000

Reexamination Certificate

active

06946950

ABSTRACT:
In a mobile body discrimination apparatus having an interrogator apparatus and a plurality of transponders each capable of transmitting information to the interrogator apparatus by modulation of radio waves that are reflected from a transponder antenna, which can be attached to respective articles, store data concerning the articles, and transmit the data to the interrogator apparatus in response to a command signal transmitted while the transponder traverses a communication region of an antenna of the interrogator apparatus, each transponder is configured to begin sending such response data after a randomly determined time interval following reception of the command signal, thereby reducing the probability of data conflict when plural transponders are within the communication region. In addition, radio waves from a second antenna of the interrogator apparatus are directed into that communication region in the intervals between transmissions of the command signal, thereby increasing the power level of radio waves that are reflected by a transponder antenna or used by a rectifier circuit to supply power for operating the transponder circuits.

REFERENCES:
patent: 5099227 (1992-03-01), Geiszler et al.
patent: 5537105 (1996-07-01), Marsh et al.
patent: 5559507 (1996-09-01), Beigel
patent: 5940006 (1999-08-01), MacLellan et al.
patent: 5963144 (1999-10-01), Kruest
patent: 6140924 (2000-10-01), Chia et al.
patent: 0 467 036 (1992-01-01), None
patent: 0 689 151 (1995-12-01), None
patent: 63-5287 (1988-01-01), None
patent: 63-54023 (1988-03-01), None
patent: 5-297131 (1993-11-01), None
patent: 6-71224 (1994-09-01), None
patent: 8-123919 (1996-05-01), None
patent: 8-252995 (1996-10-01), None
patent: 2705076 (1997-10-01), None

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

MOBILE BODY DISCRIMINATION APPARATUS FOR RAPIDLY ACQUIRING... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with MOBILE BODY DISCRIMINATION APPARATUS FOR RAPIDLY ACQUIRING..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and MOBILE BODY DISCRIMINATION APPARATUS FOR RAPIDLY ACQUIRING... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3397256

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