Jian Zhao

US Patent:

20120072729, Mar 22, 2012

Filed:

Apr 5, 2011

Appl. No.:

13/080593

Inventors:

Joseph M. Winograd - San Diego CA, US
Rade Petrovic - San Diego CA, US
Jian Zhao - Montrose CA, US

International Classification:

G06F 21/24

US Classification:

713176

Abstract:

Methods, devices, and computer program products facilitate the application of a content use policy based on watermarks that are embedded in a content. Watermark extraction and content screening operations, which can include the application of content usage enforcement actions, may be organized such that some or all of the operations can be conducted at different times by different devices. The watermark extraction results can be stored in a secure location and accessed by other devices at different times. These operations can be conducted by one or more trusted devices that reside in a home network. The home network can also include a gateway device that can coordinate the operations of the various network devices and/or delegate the various watermark extraction and content screening operations.

US Patent:

20120072730, Mar 22, 2012

Filed:

Apr 5, 2011

Appl. No.:

13/080598

Inventors:

Joseph M. Winograd - San Diego CA, US
Rade Petrovic - San Diego CA, US
Jian Zhao - Montrose CA, US

International Classification:

H04L 9/32

US Classification:

713176

Abstract:

Methods, devices, and computer program products facilitate the application of a content use policy based on watermarks that are embedded in a content. Watermark extraction and content screening operations, which can include the application of content usage enforcement actions, may be organized such that some or all of the operations can be conducted at different times by different devices. These operations can be conducted by one or more trusted devices that reside in a networked environment. Real-time access to a content can also be facilitated by utilizing existing watermark extraction records. To facilitate real-time access to the content, the extraction records may contain segmented authentication information that correspond to particular segments of the content that is being accessed. Additionally, or alternatively, new watermark extraction operations can be conducted in real-time to produce new watermark extraction records.

US Patent:

20120072731, Mar 22, 2012

Filed:

Apr 5, 2011

Appl. No.:

13/080605

Inventors:

Joseph M. Winograd - San Diego CA, US
Rade Petrovic - San Diego CA, US
Jian Zhao - Montrose CA, US

International Classification:

G06F 21/24

US Classification:

713176

Abstract:

Methods, devices, and computer program products facilitate the application of a content use policy based on watermarks that are embedded in a content. Watermark extraction and content screening operations, which can include the application of content usage enforcement actions, may be organized such that some or all of the operations can be conducted at different times by different devices. These operations can be conducted by one or more trusted devices that reside in a networked environment. The authenticity of various devices can be verified through the exchange of certificates that can further enable such devices to ascertain capabilities of one another. Based on the ascertained capabilities, an operational configuration for conducting watermark extraction and content screening can be determined.

US Patent:

20130151855, Jun 13, 2013

Filed:

Dec 13, 2011

Appl. No.:

13/324336

Inventors:

Rade PETROVIC - San Diego CA, US
Jian ZHAO - Montrose CA, US
Joseph M. WINOGRAD - San Diego CA, US

Assignee:

Verance Corporation - San Diego CA

International Classification:

H04L 9/32
G06F 17/30

US Classification:

713176

Abstract:

Methods, devices and computer program products facilitate embedding and extraction of watermarks into and from a host content. Embedded watermarks include an automatically generated portion that is associated with metadata. The metadata, which includes one or more identifiers of the host content, is stored at a database and can be accessible to both the watermark embedder and a watermark extractor. The automatically generated portion of the payload can be a serial number is changed for each watermark embedding session.

US Patent:

20130151856, Jun 13, 2013

Filed:

Dec 13, 2011

Appl. No.:

13/324421

Inventors:

Rade Petrovic - San Diego CA, US
Jian Zhao - Montrose CA, US
Joseph M. Winograd - San Diego CA, US

Assignee:

VERANCE CORPORATION - San Diego CA

International Classification:

H04L 9/32

US Classification:

713176

Abstract:

Methods, devices and computer program products facilitate conditional access to a content embedded with watermarks. For such a content, when copy control rules associated with an embedded watermark message prohibits unconditional access to the content, it is determined whether or not an exception to the copy control rules exists, and if an exception to the copy control rules exists, the content is conditionally accessed. Additional watermark messages can be extracted while the content is being conditionally accessed, and based on the additionally extracted watermark messages, it is verified that conditional access to the content has been fulfilled.

US Patent:

20130152210, Jun 13, 2013

Filed:

Dec 13, 2011

Appl. No.:

13/324276

Inventors:

Rade Petrovic - San Diego CA, US
Jian Zhao - Montrose CA, US
Joseph M. Winograd - San Diego CA, US

Assignee:

VERANCE CORPORATION - San Diego CA

International Classification:

G06F 21/00

US Classification:

726 26

Abstract:

Methods, devices and computer program products enable embedding and extraction of multiple watermark messages in a coordinated fashion to improve watermark transparency, robustness against impairments, security, and computational complexity of embedding and extraction of watermarks. Coordinated watermark embedding and extraction operations take advantage of a pre-defined relationship between the symbols of two watermark messages. The improved aspects of the watermarking system provide significant value to content owners, content distributors, and consumers at a small incremental cost.

US Patent:

20140075466, Mar 13, 2014

Filed:

Feb 8, 2013

Appl. No.:

13/763247

Inventors:

Jian Zhao - San Diego CA, US

Assignee:

VERANCE CORPORATION - San Diego CA

International Classification:

H04N 21/4784

US Classification:

725 23

Abstract:

Methods, devices, and computer program products are provided to enhance viewing of an entertainment content in the presence of advertisements. At a compliant device, an indication is received that the entertainment content is associated with a content policy information relating to presentation of advertisements during, or prior to, presentation of the entertainment content. A further indication is received that the entertainment content is associated with an advertisement award program. An advertisement award program message provides that the advertisements may be presented in a modified form in exchange for a specific number of award points. Upon receiving an indication agreeing to such an exchange, advertisements are allowed to be presented in a modified form. The content policy information can be ascertained through extraction of watermarks embedded in the advertisements or the entertainment content and/or through computation and matching of fingerprints associated with the advertisements or the entertainment content.

US Patent:

20140075469, Mar 13, 2014

Filed:

Feb 8, 2013

Appl. No.:

13/763269

Inventors:

Jian Zhao - San Diego CA, US

Assignee:

VERANCE CORPORATION - San Diego CA

International Classification:

H04N 21/81

US Classification:

725 32

Abstract:

Methods, devices, and computer program products are provided to enhance viewing of an entertainment content in the presence of advertisements. At a compliant device, at least a portion of an entertainment content is received and content policy information associated with the received entertainment content is obtained. The content policy information relates to presentation of one or more advertisements during a specific release window of the entertainment content. Such content policy information can be ascertained through one or both of: extraction of watermarks that are embedded in the one or more advertisements or the entertainment content, and computation and matching of fingerprints associated with the one or more advertisements or the entertainment content. Based on the content policy information, presentation of the one or more advertisements is triggered before allowing presentation of advertisement-free playback of the entertainment content, or simultaneous with presentation of the entertainment content.