Card for interaction with a computer

摘要

A smart card comprising:
a memory for storing information;at least one transmitting or receiving antenna; anda low frequency circuit, for handling information associated with said antenna and said memory, which information is modulated at a modulation frequency of between 5 kHz and 100 kHz. Preferably the antenna is an acoustic antenna.

主权项

1. A method of interfacing a smart card and an electronic device, said method comprising:
providing a smart card having:
(a) a magnetic memory strip;(b) an acoustic transduction element;(c) an acoustic antenna configured to transmit an acoustic signal generated by the acoustic transduction element; and(d) a processor configured to use information stored on the magnetic memory strip and control the acoustic transduction element to generate the acoustic signal; providing the electronic device having at least one of a microphone and a speaker configured to be used as an input device; converting, by the processor, data stored on the magnetic memory strip to the acoustic signal; transmitting the acoustic signal via the acoustic antenna to the electronic device via a microphone input at the electronic device; transmitting a signal by the electronic device to a remote server; transmitting programming data by the remote server to the electronic device; and transmitting the acoustic signal including the programming data from the electronic device to a second device.