Patent ID: 8047426

Claim:
A system for modifying a bank note processing device to allow for independent verification of the processing of circulating bank notes, the device having a bank note transport path, at least one primary detector and primary detector controller for detecting or sensing at least one characteristic of a bank note being processed, the characteristic for use in a fitness determination of the bank note, and a decision interval, the system comprising: at least one independent bank note first detector, wherein the first detector is independent of the primary detector and the primary detector controller, and wherein the first detector provides at least a subset of the bank note characteristic data that is provided by the primary detector; at least one independent memory storage device, wherein the at least one independent memory storage device is independent of the primary detector controller, is in communication with the first detector, and accepts data from the first detector; and at least one independent bank note second detector, wherein the second detector is independent of the primary detector and the primary detector controller, and wherein the second detector provides at least a subset of the bank note characteristic data that is provided by the primary detector, and wherein the at least one independent memory storage device is in communication with the second detector and accepts data from the second detector, wherein the first detector is located along the bank note transport path at a point within the decision interval, and wherein the second detector is located along the bank note transport path at a point following the decision interval.