Interrogator for RFID tag

Details Interrogator for RFID tag Interrogator for RFID tag

2006-12-15

2009-10-13

Trieu, Van T. (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572400, C340S572700

Reexamination Certificate

active

07602293

ABSTRACT:
An interrogator has antennas for communicating information in a non-contact manner with an IC circuit part of a RFID circuit element to be interrogated, a control circuit, and a radio frequency circuit including a directivity switching control portion. In accordance with at least said communication distance of information communication, the control circuit and the directivity switching control portion perform control so as to broaden the directivity of the antennas when said communication distance is short and to narrow the directivity of the antennas when said communication distance is long.

REFERENCES:
patent: 5751227 (1998-05-01), Yoshida et al.
patent: 6188913 (2001-02-01), Fukagawa et al.
patent: 6774845 (2004-08-01), De Champlain
patent: 7062246 (2006-06-01), Owen
patent: 7187288 (2007-03-01), Mendolia et al.
patent: 0944015 (2000-03-01), None
patent: H08-500223 (1996-01-01), None
patent: H08-180228 (1996-07-01), None
patent: H11-344562 (1999-12-01), None
patent: 2002-271229 (2002-09-01), None
patent: 94/05090 (1994-03-01), None
patent: 99/2142 (1999-03-01), None
The International Bureau of WIPO, International Preliminary Report on Patentability (for corresponding International Patent Appl'n. No. PCT/JP2005/010776) mailed Sep. 20, 2007.
The State Intellectual Property Office of the People's Republic of China, Notification of the First Office Action issued Oct. 31, 2008, in counterpart Patent Application No. CN 200580019630.2.
Japan Patent Office, Notice of Reasons of Rejections mailed Sep. 8, 2008, in counterpart Patent Application No. JP 2006-514726.

Affiliated with

Also associated with

Rating

Interrogator for RFID tag does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Interrogator for RFID tag, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interrogator for RFID tag will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4097714