Methods of transmitting information to mobile devices using cost effective card readers
First Claim
Patent Images
1. A device for receiving payment card information comprising:
- a read head configured to convert encoded payment information stored on a payment card into a raw magnetic head signal;
an amplifier configured to amplify the raw magnetic head signal;
a differentiator configured to detect peaks in the amplified raw magnetic head signal and produce a differentiated signal;
a comparator configured to receive the differentiated signal and output a processed digital signal encoding the payment card information;
a processor configured to receive the processed digital signal encoding the payment card information;
a passive id circuit including a charge pump configured to receive a bias voltage from an electrical connector, and a memory device; and
a battery configured to provide a power source to the amplifier, differentiator, comparator and the processor.
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Accused Products
Abstract
A method of transmitting information to a mobile device includes providing a card reader is provided with a read head, a slot for swiping a magnetic stripe of a card and device electronics that includes an analog front-end and a microcontroller. The analog to digital front end is coupled to a processing element in the microcontroller. A raw magnetic head signal is received at the analog to digital front end. The raw magnetic head signal is converted into a processed digital signal that the microcontroller can interpret. An output jack output jack signal is delivered to the mobile device.
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Citations
7 Claims
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1. A device for receiving payment card information comprising:
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a read head configured to convert encoded payment information stored on a payment card into a raw magnetic head signal; an amplifier configured to amplify the raw magnetic head signal; a differentiator configured to detect peaks in the amplified raw magnetic head signal and produce a differentiated signal; a comparator configured to receive the differentiated signal and output a processed digital signal encoding the payment card information; a processor configured to receive the processed digital signal encoding the payment card information; a passive id circuit including a charge pump configured to receive a bias voltage from an electrical connector, and a memory device; and a battery configured to provide a power source to the amplifier, differentiator, comparator and the processor. - View Dependent Claims (2, 3, 4, 5)
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6. A device for receiving payment card information comprising:
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a read head; an amplifier operatively coupled to the read head and configured to amplify an output of the read head; a differentiator operatively coupled to the amplifier and configured received the amplified output from the read head and to produce a differentiated signal; a comparator operatively coupled to the differentiator and configured to receive the differentiated signal and output a processed digital signal; a processor operatively coupled to the differentiator and configured to receive the processed digital signal; a male audio connector, the male audio connector is operatively connected to an output of the processor a passive id circuit including a charge pump and a memory device, the charge pump being operatively connected to a first line of the male audio connector, and the memory device being operatively coupled to a second line of the male audio connector; and a battery operatively coupled to the amplifier, and the processor. - View Dependent Claims (7)
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Specification