IC TAG AND ELECTRONIC APPARATUS

• US 20130008969A1
• Filed: 06/25/2012
• Published: 01/10/2013
• Est. Priority Date: 07/05/2011
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sakai, Yuji
• Granted Patent: US 8,740,092 B2
• Time in Patent Office: Days
• US Class Current: 235/492
• CPC Class Codes: G06K 19/0727 the arrangement being a circuit facilitating integration of the record carrier with a hand-held device such as a smart phone of PDA

Abstract

There is provided an IC tag, including a substrate made of a dielectric material, an antenna pattern disposed on a surface of the substrate, a communication circuit chip connected to one end and other end of the antenna pattern on the substrate surface, which performs transmission processing and/or reception processing of a radio signal, and external circuit connection parts connected to the antenna pattern in a vicinity of the one end and the other end thereof on the surface or a rear surface of the substrate, in which a conductive part having a predetermined area opposes to other conductive part having a predetermined area on an opposed surface at an opposite side of the substrate, and the conductive part on the opposed surface at the opposite side is formed as a pad to be connected to an external circuit.

Claims

1. An IC tag, comprising:

a substrate made of a dielectric material;

an antenna pattern disposed on a surface of the substrate;

a communication circuit chip connected to one end and other end of the antenna pattern on the substrate surface, which performs transmission processing and/or reception processing of a radio signal; and

external circuit connection parts connected to the antenna pattern in a vicinity of the one end and the other end thereof on the surface or a rear surface of the substrate, in which a conductive part having a predetermined area opposes to other conductive part having a predetermined area on an opposed surface at an opposite side of the substrate, and the conductive part on the opposed surface at the opposite side is formed as a pad to be connected to an external circuit.

2. The IC tag according to claim 1, wherein a capacitance obtained by conductive parts of the external circuit connection parts each having a predetermined area opposing to each other is set to a capacitance of 20 pF or less for galvanically-isolating a circuit formed by the communication circuit chip and the antenna pattern from the external circuit.

3. The IC tag according to claim 2, wherein the pads of the external circuit connection parts are disposed on the substrate at an inner side of the antenna pattern.

4. The IC tag according to claim 2, wherein the pads of the external circuit connection parts are disposed on the substrate at an outer side of the antenna pattern.

5. An electronic apparatus comprising:

an IC tag which includes;

a substrate made of a dielectric material;

an antenna pattern disposed on a surface of the substrate;

a communication circuit chip connected to one end and other end of the antenna pattern on the substrate surface, which performs transmission processing and/or reception processing of a radio signal; and

external circuit connection parts connected to the antenna pattern in a vicinity of the one end and the other end thereof on the surface or a rear surface of the substrate, in which a conductive part having a predetermined area opposes to other conductive part having a predetermined area on an opposed surface at an opposite side of the substrate, and the conductive part on the opposed surface at the opposite side is formed as a pad to be connected to an external circuit;

a rectifying section connected to the pads of the IC tag for rectifying signals obtained via the pads; and

a detection section that detects the signal rectified by the rectifying section.

6. The electronic apparatus according to claim 5, further comprising a control section that causes a power source to turn on based on a trigger signal outputted by the detection section when the signal rectified by the rectifying section exceeds a predetermined level.

7. The electronic apparatus according to claim 5 further comprising a display section that indicates an approximation to a reader/writer based on a trigger signal outputted by the detection section when the signal rectified by the rectifying section exceeds a predetermined level.