Universal IC Tag, Method of Manufacturing Same, and Communication Management System
AssigneeSmart N.V.
InventorKunitaka Arimura
Life of this patent
Estimating the term…
Abstract
A universal IC tag comprises a metal sheet M1 having a hollow slot functioning as an antenna; plastic sheets laminated on the front and the rear surfaces of the metal sheet M1; an IC arranged in the hollow slot, and a metal sheet M2 laminated on the rear plastic sheet having a reflecting amplifying function. Such universal IC tag can transmits/receive maximum energy by matching IC impedance with slot impedance and by attaining resonance between an IC capacitor and a slot inductance.
Claims24
A universal IC tag comprising:
- a metal sheet M1;
- a slot formed in said metal sheet M1 as a closed path with a length shorter than a width of said metal sheet M1;
- an IC arranged in said slot, and
- a metal sheet M2 arranged in parallel to said metal sheet M1 via an insulating body, wherein:
- radio wave is radiated from said slot;
- said metal sheet M1 and metal sheet M2 are short-circuited at a position in a perpendicular direction to said slot and apart ¼ wave electric length from said slot, and
- an impedance from said slot to said metal sheet M2 is infinite.
A universal IC tag comprising:
- a metal sheet M2;
- a slot formed in said metal sheet M2 as a closed path with a length shorter than a width of said metal sheet M2;
- an IC arranged in said slot, and
- metal sheets M1, M5 respectively arranged front side and rear side of said metal sheet M2 in parallel to said metal sheet M2 via insulating bodies, wherein:
- radio wave is radiated from said slot;
- said metal sheet M2, metal sheet M1 and metal sheet M5 are short-circuited at a position in a perpendicular direction to said slot and apart ¼ wave electric length from said slot;
- impedances from said slot to said metal sheet M1 and metal sheet M5 are infinite;
- openings are formed in said metal sheets M1, M5 at positions corresponding to said slot formed in said metal sheet M2, such that a first tag portion is formed, and
- a plurality of tag portions with the same configuration as said first tag are arranged above and below said first tag portion M2.
A universal IC tag comprising:
- a metal sheet M1;
- a slot formed in said metal sheet M1 as a closed path with a length shorter than a width of said metal sheet M1, and
- metal sheets M2, M5 respectively arranged front side and rear side of said metal sheet M1 in parallel to said metal sheet M1 via insulating bodies wherein:
- openings are formed in said metal sheets M2, M5 at positions corresponding to said slot formed in said metal sheet M1, as a first tag part;
- a plurality of tag parts with the same configuration as said first tag part are formed above and below said first tag part;
- a power supply points upper/lower sides of to one side of said slot are short-circuited;
- an IC is arranged in the slot, and
- said IC is connected to any other said power supply points at the other-insulated slots.
(canceled)
A universal IC tag comprising:
- a metal sheet Ms having a slot;
- and
- an IC arranged in said slot, of which impedance is matched beforehand, so as that the IC tag can be arranged on a metal plate having a cutout same or larger than said slot.
7-9. (canceled)
(canceled)
(canceled)
(canceled)
18-19. (canceled)
(canceled)
23-24. (canceled)
A universal IC tag attached to a machinery, wherein:
- a slot having ¼ wave electric length is formed on the side face or inside of said machinery
- terminals of an IC are directly attached to said slot via rivets or nails, or
- a film, a substrate or other substrate with a matching circuit to which the IC is attached beforehand is attached to said slot such that said IC identifies said machinery.
A manufacturing method of a universal IC tag, comprising steps of:
- punching slots with a predetermined distance apart in a long metal sheet;
- laminating plastic films on one surface or both surfaces of said punched metal sheet;
- arranging ICs in said slots during the laminating step
- and cutting the laminated composite sheets into pieces so as to obtain individual universal IC tags.
(canceled)
Dependencies are inferred from the claim text.