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Class Information
Number: 380/200
Name: Cryptography > Video cryptography
Description: Subject matter wherein a video signal representative of a time varying object or image is made unintelligible.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7623660 |
Method and system for pipelined decryption |
Nov. 24, 2009 |
| 7620975 |
Internal routing protocol support for distributing encryption information |
Nov. 17, 2009 |
| 7613319 |
Electronic watermark generating apparatus, method, and program for generating electronic watermark |
Nov. 3, 2009 |
| 7610246 |
Information processing apparatus, control method therefor and computer readable information recording medium |
Oct. 27, 2009 |
| 7606388 |
Contents border detection apparatus, monitoring method, and contents location detection method and program and storage medium therefor |
Oct. 20, 2009 |
| 7602908 |
System and method for using a streaming protocol |
Oct. 13, 2009 |
| 7602912 |
Content selection for partial encryption |
Oct. 13, 2009 |
| 7599927 |
Method for searching content particularly for extracts common to two computer files |
Oct. 6, 2009 |
| 7593529 |
Scramble methods and apparatus for packetized digital video signal in conditional access system |
Sep. 22, 2009 |
| 7591011 |
Assigning higher priority to transactions based on subscription level |
Sep. 15, 2009 |
| 7590860 |
Secure data processing apparatus |
Sep. 15, 2009 |
| 7587603 |
Protecting content from illicit reproduction by proof of existence of a complete data set via self-referencing sections |
Sep. 8, 2009 |
| 7580520 |
Methods for scaling a progressively encrypted sequence of scalable data |
Aug. 25, 2009 |
| 7568111 |
System and method for using DRM to control conditional access to DVB content |
Jul. 28, 2009 |
| 7567674 |
Content transmission apparatus, content reception apparatus, content transmission program, and content reception program |
Jul. 28, 2009 |
| 7567670 |
Verification information for digital video signal |
Jul. 28, 2009 |
| 7564973 |
Digital watermark embedding device and digital watermark embedding method |
Jul. 21, 2009 |
| 7565546 |
System, method and apparatus for secure digital content transmission |
Jul. 21, 2009 |
| 7561715 |
Method and arrangement for watermark detection |
Jul. 14, 2009 |
| 7555129 |
Content playback apparatus, content playback method, and program |
Jun. 30, 2009 |
| 7555650 |
Techniques for reducing the computational cost of embedding information in digital representations |
Jun. 30, 2009 |
| 7549063 |
Methods and systems of protecting digital content |
Jun. 16, 2009 |
| 7548618 |
Converter, encryption/decryption system, multi-stage converter, converting method, multi-stage converting method, program, and information recording medium |
Jun. 16, 2009 |
| 7548532 |
Method and apparatus to provide inline encryption and decryption for a wireless station via data streaming over a fast network |
Jun. 16, 2009 |
| 7545935 |
Networked multimedia overlay system |
Jun. 9, 2009 |
| 7545936 |
Method and device for incorporating additional information into main information through electronic watermarking technique |
Jun. 9, 2009 |
| 7542571 |
Transmitting second content data with reference for use with first content data |
Jun. 2, 2009 |
| 7530108 |
Multiprocessor conditional access module and method for using the same |
May. 5, 2009 |
| 7529941 |
System and method of retrieving a watermark within a signal |
May. 5, 2009 |
| 7528993 |
Hiding images in halftone pictures |
May. 5, 2009 |
| 7526091 |
Method for transmitting and receiving control information for encryption in a mobile communication system supporting multimedia broadcast/multicast service |
Apr. 28, 2009 |
| 7526451 |
Method of transferring digital rights |
Apr. 28, 2009 |
| 7519228 |
Method and apparatus for encrypting and compressing multimedia data |
Apr. 14, 2009 |
| 7519811 |
Data transmission controlling method and data transmission system |
Apr. 14, 2009 |
| 7515710 |
Federated digital rights management scheme including trusted systems |
Apr. 7, 2009 |
| 7509667 |
Broadband content jukebox with profile-based caching |
Mar. 24, 2009 |
| 7508940 |
Video information recording apparatus and method, video information reproducing apparatus and method, recording medium, and program |
Mar. 24, 2009 |
| 7505584 |
Contents management method, contents management apparatus, and recording medium |
Mar. 17, 2009 |
| 7502470 |
Method and apparatus for content protection within an open architecture system |
Mar. 10, 2009 |
| 7499546 |
Insertion of supplementary information in digital data |
Mar. 3, 2009 |
| 7496768 |
Providing secure input and output to a trusted agent in a system with a high-assurance execution environment |
Feb. 24, 2009 |
| 7496198 |
Partial dual encrypted stream utilizing program map tables |
Feb. 24, 2009 |
| 7496197 |
Method and system for robust embedding of watermarks and steganograms in digital video content |
Feb. 24, 2009 |
| 7492895 |
Data recording method and apparatus, data reproducing method and apparatus, and data recording and/or reproducing system |
Feb. 17, 2009 |
| 7486790 |
Method and apparatus for controlling access to storage media |
Feb. 3, 2009 |
| 7475331 |
Data dependent scrambler with improved global constraint |
Jan. 6, 2009 |
| 7469420 |
Key transport tamper protection |
Dec. 23, 2008 |
| 7469049 |
Data dependent scrambler with reduced overhead |
Dec. 23, 2008 |
| 7466822 |
Data coding |
Dec. 16, 2008 |
| 7466826 |
Method of secure transmission of digital data from a source to a receiver |
Dec. 16, 2008 |
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