×

Electronic transaction card powered by mobile device

  • US 7,954,716 B2
  • Filed: 12/08/2010
  • Issued: 06/07/2011
  • Est. Priority Date: 02/22/2005
  • Status: Active Grant
First Claim
Patent Images

1. A memory card compatible with a memory card slot in a mobile phone, the memory card including nonvolatile memory accessible by the mobile phone, and a point-of-sale interface to communicate with a point-of-sale terminal, wherein the point-of-sale interface receives power from the mobile phone.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×