|
KR20060120747A
|
|
The traffic card and settlement method which uses the usb and the rfid-chip
|
|
KR20060112364A
|
|
Portable dmb receiver within dmb-payment means and paymenat-system thereof
|
|
KR20060112368A
|
|
Marketing system and the method which use the mp3player
|
|
KR20060112362A
|
|
Mp3 player within transportation card and system for transportation card coupled thereof and method thereof
|
|
KR20060112367A
|
|
Electronic payment means conversion system and the method which use the mp3player
|
|
KR20060112363A
|
|
Mp3 player for dealing eletronic cash and method thereof
|
|
KR20060112366A
|
|
Mp3 player slot having the t-money card
|
|
KR20060112365A
|
|
Mp3 player having the t-money card
|
|
KR20060102036A
|
|
Security optical disc, writing method for security optical disc and writing/reading device for security optical disc
|
|
KR20060003472A
|
|
Portable electronic device for selecting sing of music box
|
|
KR20050120085A
|
|
Portable replaying device for sound
|
|
KR20050073795A
|
|
Mp3 player
|
|
KR20030057803A
|
|
apparatus for amplifing sound signal
|
|
KR20030057802A
|
|
Sound memory device with radio
|
|
KR100356128B1
|
|
Repetitive playback system for entering data into separate repeaters and players
|
