6286results about "Paper-money testing devices" patented technology

A digital watermark system embeds auxiliary signals in multimedia types, including audio, still and moving images, and physical objects. These auxiliary signals, referred to as digital watermarks, include multiple components that can perform differing functions and that are embedded with different levels of redundancy, potentially within different transform domains of the host signal.

Methods and devices for dynamically assigning document parameters to output receptacles of multiple output receptacle document evaluating devices. Documents are directed into individual output receptacles based upon their document parameter or parameters. For example, according to one embodiment a currency evaluating device comprises an input receptacle adapted to receive a stack of currency bills, a plurality of output receptacles, a transport mechanism, and a processor adapted to control the operation of the device. The processor is programmed to determine the denomination of a bill and determine if an output receptacle is associated with the denomination of the bill. If an output receptacle is not associated with the denomination of the bill, the processor is programmed to associate an output receptacle with the denomination of the bill and cause the bill to be transported to an output receptacle associated with the denomination of the bill.

The disclosure describes systems for creating and authenticating printed objects using authentication and copy detection watermarks. For example, one verification system includes a watermark decoder and a verification module. The watermark decoder detects a copy detection watermark in a printed object to determine whether the printed object has been reproduced. The verification module processes a message decoded from an authentication watermark on the printed object to authenticate the printed object or bearer of the printed object. The authentication and copy detection watermarks may be implemented as the same or different watermarks. For example, the copy detection watermark may be a fragile watermark that carries the message and that degrades in response to a reproduction operation, such as photocopying or scanning and then reprinting the object. Alternatively, the authentication and copy detection watermarks may be separate watermarks embedded in an image that is printed on the object. The authentication watermark, in some applications, includes an identifier that links the object to a database entry with related information about the object. This related information can be used to check the bearer of the object by comparing it with attributes of the bearer (such as a user ID or photo) or the validity of the object by comparing it with attributes that are visible or machine readable on the object.