6,409,080 B2 6/2002 Kawagishi 5,144,663 A 9, 1992 Kudelski et al. 6,409,089 B1 6/2002
Eskicioglu 5, 191,611 A* 3/1993 Lang........................... 705/53 6,415,031 B1 7/2002 Colligan …

(57) ABSTRACT A system, apparatus, and method are directed to providing and securely
viewing secure content. In one embodiment, a secure player provides secure …

Techniques are described for reducing time to decrypt a next encrypted frame in a content
stream by optimizing a license/key acquisition process. When requesting content, a key …

This paper proposes a new and secure video encryption method based on chaotic maps in
DCT domain, which is quite in kee** with the common ideas and the frequent practices of …

(56) References Cited 6,466,670 B1 10/2002 Tsuria et al. 6,505,299 B1 1/2003 Zeng et al.
US PATENT DOCUMENTS 6,587,561 B1 7/2003 Sered et al. 6,618,484 B1 9/2003 VanWie …

Embodiments are directed towards enabling a portion of a protected content stream to be
played in a degraded quality or experience at a client device when a key and/or license for …

, 7 Rw-etvc Giant} rungrmy mm er's device. When a trust relationship is determined to exist
between the content provider and the media player providers, the content provider encrypts …

Embodiments are directed towards decrypting encrypted content. A key for decrypting the
encrypted content may be provided to a web application executing within a browser. The …

(73) Assignee: Google Inc., Mountain View, CA (US) EP O6. 58054 A2 6, 1995 (*) Notice:
Subject to any disclaimer, the term of this EP O714204 A2 5, 1996 patent is extended or …

A computing device may be configured to automatically change at least a quality, display,
video, and/or audio features for a content stream when a user is unlikely to notice such …