Data entry unit

Claim 1

A portable data entry unit for taking or recording of information about packages and delivery thereof to customers, comprising: a main data entry device adapted to input information about the packages and delivery thereof; an information display; a bar code reader adapted to read a bar code disposed on a package surface, where a bar code represents information about the associated package and delivery thereof; a transparent window through which an optical image of a bar code passes to said bar code reader; a control unit controlling input and output of information among said main data entry device, said bar code reader and said display; and a memory storing and reading out the information; wherein said main data entry device and said information display are disposed on a same surface at the top of the data entry unit; wherein said transparent window is flat and is provided on a bottom surface that is opposite to said same surface at the top of the data entry unit, said transparent window being in contact with the bar code when said bottom surface is placed on the package surface; wherein said main data entry device includes a keyboard and a signature input pad on which a hand-written signature of the customer as an acknowledgement is entered with a stylus, the entered customer's hand-written signature being converted into signature information data in digital form by said control unit and said signature information data being stored in said memory.