Systems and methods for advanced communication mechanisms for magnetic cards and devices
First Claim
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1. A method, comprising:
- detecting position variations of a read head in relation to a card;
calculating a time window to communicate data to said read head based on said position variations; and
varying at least one communication parameter to communicate said data within said time window,wherein said data includes a first portion and a second portion, anda value of said at least one communication parameter for said first portion is different than a value of said at least one communication parameter for said second portion.
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Abstract
A card may detect variations (e.g., position, velocity, acceleration and direction) of a read head in relation to the card. Based on certain parameters (e.g., card length, initially detected read head position, and read head velocity) the card may change communicated bit parameters (e.g., bit period) so that a total number of data bits may be communicated by the card to the read head while the read head remains within a communication distance of the card.
242 Citations
20 Claims
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1. A method, comprising:
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detecting position variations of a read head in relation to a card; calculating a time window to communicate data to said read head based on said position variations; and varying at least one communication parameter to communicate said data within said time window, wherein said data includes a first portion and a second portion, and a value of said at least one communication parameter for said first portion is different than a value of said at least one communication parameter for said second portion. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A card, comprising:
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a dynamic magnetic stripe communications device; a detector; and a modulator, wherein said detector is operable to detect characteristics of an object in proximity to said card, and said modulator is operable to modify communication parameters of data communicated by said dynamic magnetic stripe communications device based on said detected characteristics such that a plurality of portions of said data are communicated using different communication parameters during a communication. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification