Contact smart cards having a document core, contactless smart cards including multi-layered structure, pet-based identification document, and methods of making same

Abstract

The present invention relates to identification documents and smart cards. In one implementation, we provide a contactless smart identification document comprising a first contact layer, a second contact layer, and a carrier layer. The carrier layer is sandwiched in between the first and second contact layers, and the carrier layer includes least a transceiver and electronic circuitry. At least a portion of the first and second contact layers migrate into the carrier layer. This migration helps to secure at least a portion of the transceiver or electronic circuitry to the first and second contact layers,

1 . A contactless smart identification document comprising:
 a first contact layer;   a second contact layer; and   a carrier layer sandwiched in between the first and second contact layers, the carrier layer including at least a transceiver and an electronic circuitry,   wherein at least a portion of the first and second contact layers has migrated into the carrier layer, the migration helping to secure at least a portion of the transceiver or the electronic circuitry to at least one of the first and second contact layers.   
     
     
         2 . The contactless smart identification document of  claim 1 , wherein the carrier layer comprises at least one of a scrim and a mesh. 
     
     
         3 . The contactless smart identification document of  claim 1 , further comprising a laminate layer covering at least one of the first and second contact layers. 
     
     
         4 . The contactless smart identification document of  claim 1 , wherein at least one of the first and second contact layers comprises a digital watermark formed thereon. 
     
     
         5 . The contactless smart identification document of  claim 1 , wherein the electronic circuitry operates to process or store data. 
     
     
         6 . The contactless smart identification document of  claim 1 , wherein at least one of the first and second contact layers comprises a digital watermark formed thereon, wherein the electronic circuitry operates to store data, and wherein at least some information contained in the digital watermark correlates to at least some data stored in the electronic circuitry. 
     
     
         7 . A method of milling a cavity using a milling tool in an identification document to receive a smart card module, the identification document comprising at least a laminate layer-document core sandwich structure, wherein the laminate layer comprises a substantially different material than does the document core, said method comprising:
 providing a first cut in the laminate layer to create a rough upper cavity, the rough upper cavity including a first aperture;   providing a second cut to create a rough lower cavity, the rough lower cavity including a second aperture and extending through the laminate layer into the document core, the rough lower cavity and the rough upper cavity being approximately centered on a common axis, wherein the second aperture is smaller than the first aperture resulting in a shelf in the laminate layer; and   providing a third cut around the rough lower cavity to create a finished lower cavity, the finished lower cavity having a third aperture, which is larger than the second aperture, the finished lower cavity being approximately centered on the common axis.   
     
     
         8 . The method of  claim 7 , further comprising: providing a fourth cut around the rough upper cavity to create a finished upper cavity, the finished upper cavity having a fourth aperture, which is larger than the first aperture, the finished upper cavity being approximately centered on the common axis. 
     
     
         9 . A milling tool for milling a cavity in an identification document comprising:
 a fluted shaft having a first section and a second section;   a first cutting edge disposed on the first section, the first cutting edge having a first bevel; and   a second cutting edge disposed on the second section, the second cutting edge having a second bevel,   wherein the first and second cutting edges are off-centered.   
     
     
         10 . The milling tool of  claim 9 , wherein at least one of the first and second bevels is tapered in a first angle in the range of about 5-35 degrees. 
     
     
         11 . The milling tool of  claim 10 , wherein the first angle comprises about 15 degrees. 
     
     
         12 . The milling tool of  claim 9 , wherein at least one of the first and second cutting edges comprises a relief. 
     
     
         13 . The milling tool of  claim 12 , wherein the relief is in a second angle in the range of about 30-60 degrees. 
     
     
         14 . The milling tool of  claim 13 , wherein the second angle comprises about 45 degrees.