Contactless identification system, method of contactless identification, and antenna coil
AssigneeOMRON Corporation
InventorsMasahiro Terashima, Shinichiro Fukouka
Life of this patent
Estimating the term…
Abstract
A contactless identification system and an antenna coil capable of reliable transmission with multiple tags without a requirement of uniform distance from tag to antenna. The system also permits differing tag versus antenna planar orientations during tag passage through the antenna opening. The system creates a contactless identification system with a shaped antenna coil having an opening at the center, whereby the antenna section is transferred or varied in position or orientation with respect to piled objects with attached tags, so that the objects pass through the opening, producing transmission between the antenna coil and each of the tags.
Claims23
A contactless identification system comprising:
- a data carrier with a first surface, said surface defining a first plane, said carrier adapted to be attached to an object;
- an antenna coil with an opening for the passage of said object with attached data carrier through said opening, said opening defining a second plane;
- a mechanism which varies the angle between the first and second planes over time while said carrier is within said opening so as to maximize communication between said antenna and said carrier;
- and
- a data carrier identification device which communicates with the data carrier through the antenna.
A contactless identification system comprising:
- a data carrier adapted to be attached to an object;
- an antenna coil with an opening for the passage of said object with attached data carrier through said opening;
- an apparatus which varies the vertical distance between the center of said antenna opening and said data carrier with respect to each other to ensure required minimum distance between said antenna and said carrier needed to effect tag and antenna communication;
- and
- a data carrier identification device which communicates with said data carrier through said antenna.
An antenna coil within the antenna section of the contactless identification system comprising:
- an antenna section, to transmit with a data carrier, with an opening in the antenna coil through which objects, with said carrier attached, pass;
- a mechanism for controlling the angle defined by the intersection of a plane defined by the antenna opening and a plane defined by a surface of a data carrier attached to an object passing through said opening;
- and
- said mechanism movements are predetermined to maximize the power induced in said data carrier's induction coil antenna, as said carrier moves through said opening.
A method to identify objects using a contactless identification means to comprising:
- performing transmission between a data carrier attached to an object, an antenna coil possessing an opening and a contactless identification mechanism;
- and
- performing transmission with the data carrier by varying the angle formed by an intersection of a plane defined by the data carrier attached to said objects and plane defined by the antenna coil opening while passing said object through said opening.
A method to identify objects using a contactless identification means comprising:
- generating a magnetic field from the antenna coil;
- varying the angle formed by the intersection of a plane defined by a data carrier surface and a plane defined by an antenna coil opening;
- passing an object with the data carrier attached through the antenna coil opening;
- and
- performing transmission between said data carrier, an antenna coil with an opening and the contactless identification means while passing said object through said opening.
A contactless identification system comprising:
- a data carrier adapted to be attached to an object;
- an antenna coil for generating a magnetic field, transmitting and receiving signals from said carrier;
- said antenna coil surrounding an opening for the passage of said object with attached data carrier through said opening;
- said antenna coil is mounted such that a plane defined by the antenna coil opening is formed at an angle not perpendicular to a plane defined by said object's axis of movement through said opening;
- and
- a data carrier identification device which communicates with the data carrier through said antenna.
A contactless identification system comprising:
- a data carrier adapted to be attached to an object;
- a portable frame with an opening through which said objects are passed;
- an antenna coil, mounted into said frame in such a manner that said antenna coil surrounds said opening;
- and
- a data carrier identification device which communicates with said data carrier through the antenna.
A method for identifying objects using a contactless identification system comprising:
- attaching a data carrier tag to an object;
- manually moving a portable frame with an antenna coil whereby said object is passed through an opening in said antenna coil;
- and
- performing transmission between the data carrier, said antenna coil and a contactless identification mechanism.
A contactless identification system comprising:
- a data carrier adapted to be attached to an object, said carrier has a first surface defining a first plane;
- an antenna coil with an opening for the passage of said object through said opening, said opening defining a second plane;
- said antenna coil opening plane is positioned with respect to the second plane so that both said data carrier plane and said antenna opening plane are parallel when said object is passed through said opening;
- a mechanism to pass the object through the opening;
- and
- a data carrier identification mechanism which communicates with said data carrier through said antenna while the object is passed through said opening.
A method for identifying objects using a contactless identification system comprising:
- positioning an object with said attached data carrier so that said object surface with the attached data carrier is parallel to the plane of an antenna coil;
- moving an antenna coil whereby said object with said attached data carrier is passed through an opening in said antenna coil;
- and
- performing transmission between the data carrier, the antenna coil with an opening and a contactless identification means.
A method for identifying objects using a contactless identification system comprising:
- positioning an object having an attached data carrier so that the object surface with the attached data carrier is parallel to the plane of an antenna coil;
- moving said object through an opening in the antenna coil;
- and
- performing transmission between the data carrier, said antenna coil and a contactless identification means while passing said object through said opening.
Dependencies are inferred from the claim text.