SPACED APART EXTENDED RANGE RFID TAG ASSEMBLIES AND METHODS OF OPERATION
1 Assignment
0 Petitions
Accused Products
Abstract
An RFID tag assembly for use in tracking or timing of a progress of a user and the method of operating thereof the assembly including an RFID tag having a mounting substrate with an exposed first planar surface and an opposing second planar surface with one adapted for selective attachment to a surface of a carrier and an RFID semiconductor chip having a predetermined operating frequency with an antenna interface mounted on the second planar surface, a conductor, an antenna and a spacer composed of a foam material that is non-conducting and non-absorbing of a substantial amount of energy at the predetermined operating frequency that is attached to the at least one of the first and second planar surfaces of the mounting substrate and is positioned between a surface of the body of the user and the RFID tag for positioning at a minimum spaced apart distance from the surface of the body of the user during operation of the RFID tag.
93 Citations
88 Claims
-
1-63. -63. (canceled)
-
64. An RFID tag assembly for use in tracking or timing of a progress of a user comprising:
-
an RFID tag having a mounting substrate with an exposed first planar surface and an opposing second planar surface, at least one of which is adapted for selective attachment to a surface of a carrier, said RFID tag having an RFID semiconductor chip having a predetermined operating frequency with an antenna interface mounted on the second planar surface, a conductor electrically coupled to the antenna interface of the RFID semiconductor chip, and an antenna electrically coupled to the conductor; and a spacer composed of a foam material that is non-conducting and non-absorbing of a substantial amount of energy at the predetermined operating frequency, said spacer is attached to the at least one of the first and second planar surfaces of the mounting substrate and is positioned for placement between a surface of the body of the user and the RFID tag for positioning at a minimum spaced apart distance from the surface of the body of the user during operation of the RFID tag. - View Dependent Claims (65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80)
-
-
81. A method of operating a radio frequency identification (RFID) tag assembly comprising:
-
mounting a mounting substrate with an RFID semiconductor chip at a spaced apart distance from an operating surface at a distance greater than or equal to about ¼
of a wavelength of a predetermined operating frequency of a radio frequency energy, said operating surface being associated with a body composed of a material that absorbs a substantial amount of energy at the predetermined operating frequency;receiving at a first side of a two sided planar antenna coupled to an RFID semiconductor chip mounted in proximity to the operating surface a first portion of that radio frequency energy as transmitted from an antenna associated with a base station transceiver positioned remote from the RFID tag assembly, the first side being oriented away from the operating surface; receiving at a second side of the two-sided planar antenna a second portion of the radio frequency energy transmitted from the base station transceiver antenna, said second portion of the radio frequency energy being received at the predetermined operating frequency, the second side being oriented towards the operating surface; processing the received first and second portions of the radio frequency energy by the RFID semiconductor chip; generating a reply radio frequency energy at the RFID semiconductor chip at a predetermined reply operating frequency in response to the processing and in response to the first and second received radio frequency energy portions; and radiating the reply radio frequency energy by both the first side and the second side of the two-sided planar antenna.
-
-
82. An RFID tag assembly for use in tracking or timing of a progress of a user comprising:
-
an RFID tag having a mounting substrate with an exposed first planar surface and an opposing second planar surface, at least one of which is adapted for selective attachment to a surface of a carrier, said RFID tag having an RFID semiconductor chip having a predetermined operating frequency with an antenna interface mounted on the second planar surface, a conductor electrically coupled to the antenna interface of the RFID semiconductor chip, and an antenna electrically coupled to the conductor; and a spacer composed of a foam material that is non-conducting and non-absorbing of a substantial amount of energy at the predetermined operating frequency, said spacer is attached to the at least one of the first and second planar surfaces of the mounting substrate and is positioned for placement between a surface of the body of the user and the RFID tag for positioning at a minimum spaced apart distance from the surface of the body of the user during operation of the RFID tag, said spacer dimensioned to have a spaced apart distance between the surface of the body of the user and the mounting substrate of greater than or equal to about ¼
of a wavelength of the predetermined operating frequency. - View Dependent Claims (83, 84, 85, 86, 87, 88)
-
Specification