The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 2016
Filed:
Nov. 17, 2011
Kartik Lamba, San Francisco, CA (US);
Amish Babu, San Francisco, CA (US);
Michael Shyh-yen Ho, San Francisco, CA (US);
Adam David Peter Rothschild, San Francisco, CA (US);
Gerald Thomas Ryle, San Francisco, CA (US);
Jack Dorsey, San Francisco, CA (US);
James M. Mckelvey, Miami, FL (US);
Kartik Lamba, San Francisco, CA (US);
Amish Babu, San Francisco, CA (US);
Michael Shyh-yen Ho, San Francisco, CA (US);
Adam David Peter Rothschild, San Francisco, CA (US);
Gerald Thomas Ryle, San Francisco, CA (US);
Jack Dorsey, San Francisco, CA (US);
James M. McKelvey, Miami, FL (US);
Square, Inc., San Francisco, CA (US);
Abstract
A method is provided of transmitting information with a communication protocol to a mobile device. A card reader is provided with a read head that has a slot for swiping a magnetic stripe of a card, an output jack and device electronics that includes a microcontroller. The read head is used to read data on a magnetic stripe of a card. A raw magnetic signal is produced indicative of data stored on the magnetic stripe. The raw magnetic head signal is converted into a processed digital signal that the microcontroller can interpret. A synchronous Manchester encoded stream is produced that makes a greater number of 0 crossings. A Manchester encoded stream output jack signal is delivered to the mobile device through the output jack.