Magnetic stripe data transmission device and method

A device for magnetic stripe data transmission comprising:

• a coil to which current is supplied in a first direction and a second direction that is opposite to the first direction;
• a current adjustment circuit configured to adjust, if a burst pulse or similar burst pulse current is supplied to the coil, the current so that the current is gradually attenuated for a predetermined time from a falling edge of the current;
• a power source configured to supplying the current to the coil;
• driving circuits configured to intermittently supply the burst pulse or similar burst pulse current supplied from the power source to the coil in the first direction or the second direction;
• and
• a controller configured to output to the driving circuits a control signal for controlling the current to be supplied to the coil alternately in the first direction and the second direction,
• wherein the current adjustment circuit includes a capacitor connected in series to the coil.

A device for magnetic stripe data transmission comprising:

• a coil to which current is supplied in a first direction and a second direction that is opposite to the first direction;
• a power source configured to supplying the current to the coil;
• a current adjustment circuit configured to adjust, when a burst pulse or similar burst pulse current is blocked after being intermittently supplied to the coil, the current so that the current is attenuated and blocked in the form of stairs having a falling edge every second time that is shorter than a predetermined first time from the falling edge of the burst pulse or similar burst pulse current;
• driving circuits configured to supply the burst pulse or similar burst pulse current intermittently supplied from the power source to the coil in the first direction or the second direction;
• and
• a controller configured to output a control signal for controlling the current to be supplied to the coil in the burst pulse or similar burst pulse form alternately in the first direction and the second direction.

A method for transmitting data in an electronic device having a device for magnetic stripe data transmission, comprising:

• checking a battery capacity of the electronic device in case where the magnetic stripe data transmission is required;
• reading a predetermined current adjustment value from a memory corresponding to the battery capacity;
• transmitting data at a rising edge of intermittently flowing current during the magnetic stripe data transmission;
• and
• applying a current attenuation rate in accordance with the current adjustment value read at a falling edge of the intermittently flowing current.