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US 7,677,462 B2Granted
Method of reducing electro-static discharge (ESD) from conductors on insulators
AssigneeJDS Uniphase Corporation
InventorsJohn Hynes, John Kawand, Lily O'Boyle, Sundar Sadasivan, Leonardo Vincitore, Salvatore F. D'Amato
Life of this patent
Estimating the term…
Abstract
A non-conductive carrier having a conductive component comprising a plurality of sections to disrupt the conductive component's conductive path. Each section is isolated from other sections such that a charge accumulated in one section cannot combine with the charge accumulated in another section, thereby minimizing any potential electrostatic discharge from the carrier.
Claims21
A plastic card comprising:
- a plastic non-conductive carrier and
- a holographic magnetic stripe on the plastic non-conductive carrier;
- wherein the holographic magnetic stripe comprises a magnetic layer, an embossed layer with a holographic pattern embossed therein for providing a holographic image, and a conductive layer formed of a reflective metal on the holographic pattern and conforming thereto for enhancing visibility of the holographic image;
- and,
- wherein the conductive layer comprises a plurality of conductive sections electrically isolated from one another by gaps for disrupting a conductive path for triboelectric charges so that a triboelectric charge accumulated in one section does not combine with a triboelectric charge accumulated in another section when the card is swiped through or inserted into a magnetic reader.
2 more elements
A holographic magnetic stripe for attaching to a plastic card, comprising:
- a reflective hologram comprising:
- an embossed layer with a holographic pattern embossed therein for providing a holographic image, and a metallic coating on the holographic pattern and conforming thereto for enhancing visibility of the holographic image, and a magnetic coating supported by the reflective hologram,
- wherein the metallic coating comprises a plurality of conductive sections electrically isolated from one another by gaps for disrupting a conductive path for triboelectric charges so that a triboelectric charge accumulated in one section does not combine with a triboelectric charge accumulated in another section when the plastic card with is swiped through or inserted into a magnetic reader.
Dependencies are inferred from the claim text.