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Class Information
Number: 380/217
Name: Cryptography > Video cryptography > Video electric signal modification (e.g., scrambling) > Image data converted to digital before modification > Having compression (e.g., mpeg)
Description: Subject matter wherein the quantity of data representing the converted image data is reduced prior to further processing.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7623661 |
Motion picture encoding and counterfeit tracking system and method |
Nov. 24, 2009 |
| 7623657 |
Methods and apparatus for secure and adaptive delivery of multimedia content |
Nov. 24, 2009 |
| 7609835 |
Digital media cartridge system and method |
Oct. 27, 2009 |
| 7596221 |
Detection of a watermark in a digital signal |
Sep. 29, 2009 |
| 7593529 |
Scramble methods and apparatus for packetized digital video signal in conditional access system |
Sep. 22, 2009 |
| 7583848 |
Scrambling of image portions via color component interchange |
Sep. 1, 2009 |
| 7564974 |
Frame-accurate editing methods and systems |
Jul. 21, 2009 |
| 7555123 |
Processing an MPEG elementary stream in a conditional access overlay environment |
Jun. 30, 2009 |
| 7549058 |
Method and apparatus for encrypting and decrypting digital data |
Jun. 16, 2009 |
| 7546397 |
Systems and methods for allowing multiple devices to share the same serial lines |
Jun. 9, 2009 |
| 7530084 |
Method and apparatus for synchronizing dynamic graphics |
May. 5, 2009 |
| 7519819 |
Layered security in digital watermarking |
Apr. 14, 2009 |
| 7519811 |
Data transmission controlling method and data transmission system |
Apr. 14, 2009 |
| 7515711 |
Methods and apparatuses for encrypting video and for decrypting video |
Apr. 7, 2009 |
| 7512811 |
Encryption/decryption method for data limited in value range, apparatus and program therefor |
Mar. 31, 2009 |
| 7505590 |
Method and system for providing transcodability to frame coded streaming media |
Mar. 17, 2009 |
| 7502471 |
System and method for protecting data streams in hardware components |
Mar. 10, 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 |
| 7480382 |
Image file container |
Jan. 20, 2009 |
| 7478238 |
Access control for digital video stream data |
Jan. 13, 2009 |
| 7477741 |
Analysis resistant cipher method and apparatus |
Jan. 13, 2009 |
| 7474750 |
Dynamic content-aware memory compression and encryption architecture |
Jan. 6, 2009 |
| 7467297 |
Apparatus of a flexible and common IPMP system for MPEG-2 content distribution and protection |
Dec. 16, 2008 |
| 7464262 |
Method and apparatus for synchronizing audio and video in encrypted videoconferences |
Dec. 9, 2008 |
| 7457415 |
Secure information distribution system utilizing information segment scrambling |
Nov. 25, 2008 |
| 7457419 |
Information processing method and apparatus for encrypting encoded data |
Nov. 25, 2008 |
| 7454018 |
Transfer of DVD decode key on a window by window basis to an attached device |
Nov. 18, 2008 |
| 7436960 |
Methods of use of ipmp data for mpeg-n ipmp (intellectual property management and protection) |
Oct. 14, 2008 |
| 7428639 |
Encrypted and watermarked temporal and resolution layering in advanced television |
Sep. 23, 2008 |
| 7389420 |
Content authentication and recovery using digital watermarks |
Jun. 17, 2008 |
| 7386129 |
System and method for multimedia content simulcast |
Jun. 10, 2008 |
| 7382878 |
System and method for data encryption |
Jun. 3, 2008 |
| 7376233 |
Video slice and active region based multiple partial encryption |
May. 20, 2008 |
| 7360093 |
System and method for authentication of JPEG image data |
Apr. 15, 2008 |
| 7349023 |
Camera-integrated video recording and reproducing apparatus, and record control method thereof |
Mar. 25, 2008 |
| 7349539 |
Encoding and encrypting devices for secure scalable data streaming |
Mar. 25, 2008 |
| 7336787 |
Critical packet partial encryption |
Feb. 26, 2008 |
| 7336788 |
Electronic book secure communication with home subsystem |
Feb. 26, 2008 |
| 7319754 |
Insertion of binary messages in video pictures |
Jan. 15, 2008 |
| 7313236 |
Methods and apparatus for secure and adaptive delivery of multimedia content |
Dec. 25, 2007 |
| 7295673 |
Method and system for securing compressed digital video |
Nov. 13, 2007 |
| 7296162 |
Time validation system |
Nov. 13, 2007 |
| 7286670 |
Method and apparatus for chaotic opportunistic lossless compression of data |
Oct. 23, 2007 |
| 7272718 |
Device, method and storage medium for superimposing first and second watermarking information on an audio signal based on psychological auditory sense analysis |
Sep. 18, 2007 |
| 7266683 |
Selective encryption of application session packets |
Sep. 4, 2007 |
| 7260220 |
Adaptive watermarking |
Aug. 21, 2007 |
| 7254234 |
Method and apparatus for encrypting and decrypting information |
Aug. 7, 2007 |
| 7245720 |
Method for controlling the use of a program signal in a broadcast system, and control device for a receiver for carrying out such a method |
Jul. 17, 2007 |
| 7231043 |
Data processing apparatus and method, and computer-readable storage medium on which program for executing data processing is stored |
Jun. 12, 2007 |
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