IP Library › Granted Patent US 7,948,380
Granted Patent B2
US 7,948,380 · App. 11/383,652 · Granted May 24, 2011

Spatially distributed remote sensor

Assignee: 3M Innovative Properties Company
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Quick Facts
Patent No.
US 7,948,380
App. No.
11/383,652
Granted
May 24, 2011
Kind
B2
Abstract

A remote sensing device includes a plurality of components arranged to form a resonant electrical circuit. The plurality of components includes at least one sensing component having sensing elements distributed among regions of an area of interest. The sensing elements are arranged so that a resonant characteristic of the resonant circuit is modifiable by an external event affecting an element associated with a region. The sensing component may be a capacitor having spatially distributed capacitive elements or an inductor having spatially distributed inductive elements.

Claims (6)

1. A remote sensing system, comprising:

a device comprising a plurality of components including at least an inductor and a capacitor arranged to form a sensing circuit having a resonant characteristic, at least one component of the plurality of components comprising elements respectively associated with regions of an area of interest, the elements arranged so that a resonant characteristic of the sensing circuit is modifiable by an external event affecting an element associated with a region; and

an interrogator configured to detect the resonant characteristic, wherein the regions comprise ticket objects and the interrogator is disposed in a dispenser of the ticket objects.

2. A remote sensing system, comprising:

a device comprising a plurality of components including at least an inductor and a capacitor arranged to form a sensing circuit having a resonant characteristic, at least one component of the plurality of components comprising elements respectively associated with regions of an area of interest, the elements arranged so that a resonant characteristic of the sensing circuit is modifiable by an external event affecting an element associated with a region; and

an interrogator configured to detect the resonant characteristic, wherein the regions comprise accessible sections of a blister pack and the interrogator is disposed in a blister pack dispenser.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2006
From: KUHNS, DAVID W.; FREE, M. BENTON
To: 3M INNOVATIVE PROPERTIES COMPANY
Reel/Frame 017635/0268 →
Continuity (1)
Related Publication 20080061965A1 · Mar 13, 2008