Optimizing RFID reader duty cycle or power to preserve...

Details Optimizing RFID reader duty cycle or power to preserve... Optimizing RFID reader duty cycle or power to preserve...

2007-09-25

2010-11-02

Tweel, Jr., John A (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572400

Reexamination Certificate

active

07825806

ABSTRACT:
The duty cycle of a portable battery-powered RFID tag reader is reduced during time periods when it is less likely to produce a “read” in order to preserve battery life. The reader operates with an aggressive duty cycle during periods of a high probability of a tag read and reduces duty cycle during periods of a low probability of a tag read. In this manner a user does not perceive the reader to be sluggish. An alternative embodiment reduces peak operating power during time periods when a tag is less likely to produce a “read” in order to preserve battery life.

REFERENCES:
patent: 6111507 (2000-08-01), Alicot et al.
patent: 6150948 (2000-11-01), Watkins
patent: 6476708 (2002-11-01), Johnson
patent: 6696951 (2004-02-01), Belka et al.
patent: 6734797 (2004-05-01), Shanks et al.
patent: 7546477 (2009-06-01), Breen et al.
patent: 7587190 (2009-09-01), Balachandran et al.
patent: 2005/0083181 (2005-04-01), Jalkanen et al.
patent: 0944014 (1999-09-01), None
patent: 0944015 (1999-09-01), None
patent: 2005038696 (2005-04-01), None
patent: WO2009/042430 (2009-04-01), None
International Search Report and Written Opinion dated May 21, 2010 in related case PCT/US2008/076364.

Affiliated with

Also associated with

Rating

Optimizing RFID reader duty cycle or power to preserve... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optimizing RFID reader duty cycle or power to preserve..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimizing RFID reader duty cycle or power to preserve... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4208026