| 摘要 |
A method for converting a standard, consumer, hand held, cellular telephone into a hand held, point of sale, (POS) credit card terminal, utilizing an attachment module which plugs into the data port on the bottom or external RS-232 port of the cellular phone is described herein. The Module is comprised of: a reinforced plastic enclosure molded to the contour of the cellular phone; an internal printed circuit board containing a micro-processor unit, a memory chip, an I/R interface chip, I/R diodes; a credit card reader head that has been modified to reduce the size of the reader head thickness; a smart card reader assembly; a barcode reader and; an electronic fingerprint reader interface. |
