Systems and methods for non-time smearing detection mechanisms for magnetic cards and devices
AssigneeDynamics Inc.
InventorAllen D. Bowers
Life of this patent
Estimating the term…
Abstract
A detection activity of a card may be sensitive to capacitance changes in one or more pads on the card, where a capacitance change detected in a pad during a first time period does not affect a capacitance change detected in the pad during subsequent time period(s). Accordingly, the detection activity may remain sensitive to a faster-moving device with greater accuracy in a determination of position, velocity and/or acceleration of the faster-moving device in relation to the card. A second detection activity may follow a first detection activity, which may increase a probability of a successful communication sequence subsequent to the first detection activity.
Claims1
A method, comprising:
- detecting a presence of a read-head housing of a magnetic stripe reader using a detected capacitance change in a first pad during a first time period;
- detecting a presence of a read-head housing of a magnetic stripe reader using a detected capacitance change in said first pad during a second time period, wherein said detected capacitance change during said first time period does not affect said detected capacitance change during said second time period;
- and
- activating a communication sequence with said magnetic stripe reader in response to at least one of said detections.
Dependencies are inferred from the claim text.