Methods and apparatus for counting and positioning using...

Details Methods and apparatus for counting and positioning using... Methods and apparatus for counting and positioning using...

2007-05-15

2007-05-15

Lee, Seung Ho (Department: 2876)

Registers

Systems controlled by data bearing records

Inventory

C235S383000, C235S436000, C235S493000, C380S044000

Reexamination Certificate

active

10625789

ABSTRACT:
Methods and apparatus for counting or measuring the relative positions of a number of resonant tag elements in proximity to each other. By measuring the resonant frequency of a given set of tags using a reader antenna and comparing the measured frequency to a reference resonant frequency, the observed frequency shift is used to ascertain certain properties of the set of tags, such as the number of tags present or the relative positions thereof.

REFERENCES:
patent: 4862160 (1989-08-01), Ekchian et al.
patent: 5028745 (1991-07-01), Yamanami et al.
patent: 5841350 (1998-11-01), Appalucci et al.
patent: 5942991 (1999-08-01), Gaudreau et al.
patent: 6020849 (2000-02-01), Fukuzaki
patent: 6239789 (2001-05-01), Sekizawa et al.
patent: 6301763 (2001-10-01), Pryor
patent: 6639514 (2003-10-01), Muller
patent: 6732923 (2004-05-01), Otto

Affiliated with

Also associated with

Rating

Methods and apparatus for counting and positioning using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and apparatus for counting and positioning using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for counting and positioning using... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3790556