We provide a system for issuing identification documents to a plurality of individuals,
comprising a first database, a first server, and a workstation. The first database stores a …

Hashes are short Summaries or signatures of data files which can be used to identify the file.
Hashing multimedia content (audio, video, images) is difficult because the hash of original …

This disclosure describes methods for using embedded auxiliary signals in documents for
copy detection and other applications. In on application, the auxiliary signal is formed as an …

(57) ABSTRACT A watermark-based age verification system is provided in one
implementation. The Verification system may also verify a biometric template against a …

This disclosure describes methods for using embedded aux iliary signals in documents for
copy detection. In one imple mentation we embed an auxiliary signal with a first color that is …

(57) ABSTRACT A robust fingerprinting system is disclosed. Such a system can recognize
unknown multimedia content (U (t)) by extract ing a fingerprint (a series of hash words) from …

First worldwide family litigation filed litigation Critical https://patents. darts-ip. com/? family=
27618011&utm_source= google_patent&utm_medium= platform_link&utm_campaign …

Methods and apparatus are described for matching a set input fingerprint blocks, each
fingerprint block representing at least a part of an information signal, with fingerprints stored …

Digital watermark methods for encoding auxiliary data into a host signal are used to
authenticate physical and electronic objects. In one implementation, an identification …

The disclosure describes methods for adaptive prediction filtering for digital watermarking
applications. The predictive filter is designed to predict the digital watermark signal. In one …