Method and apparatus for individualized selection of special fee postage value computations

Abstract From the Canadian patent

Abstract of Disclosure A method and apparatus are described for controlling access of a user of a postal value computing system to the computation of special fees. A directory memory stores a special fee control byte which is combined with a rate fee screen byte that is generated by the system to represent the special fee computations requested in response to actuations of the keyboard. The combining of the bytes employs a bit for bit AND operation with the result stored as a modified rate screen byte for use in the subsequent special fee computations. Access may then be granted or denied depending upon, the special fee control byte.