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Class Information
Number: 380/269
Name: Cryptography > Communication system using cryptography > Having compression
Description: Subject matter wherein the quantity of data representing a signal to be communicated is reduced.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7596703 |
Hidden data backup and retrieval for a secure device |
Sep. 29, 2009 |
| 7571316 |
Method and device for transforming a digital signal |
Aug. 4, 2009 |
| 7558968 |
Information processing apparatus and method |
Jul. 7, 2009 |
| 7552332 |
Java based electronic signature capture method, device and system |
Jun. 23, 2009 |
| 7545938 |
Digital watermarking which allows tampering to be detected on a block-specific basis |
Jun. 9, 2009 |
| 7526089 |
Device and method for controlling digital bidirectional communication |
Apr. 28, 2009 |
| 7522727 |
Method and apparatus for providing authentication in a communication system |
Apr. 21, 2009 |
| 7515711 |
Methods and apparatuses for encrypting video and for decrypting video |
Apr. 7, 2009 |
| 7492902 |
Custom character-coding compression for encoding and watermarking media content |
Feb. 17, 2009 |
| 7474750 |
Dynamic content-aware memory compression and encryption architecture |
Jan. 6, 2009 |
| 7463735 |
Encoding and decoding methods for secure scalable streaming and related systems |
Dec. 9, 2008 |
| 7440569 |
Tate pairing techniques for use with hyperelliptic curves |
Oct. 21, 2008 |
| 7383228 |
Method and system for preventing unauthorized rerecording of multimedia content |
Jun. 3, 2008 |
| 7370120 |
Method and system for reducing network latency in data communication |
May. 6, 2008 |
| 7349539 |
Encoding and encrypting devices for secure scalable data streaming |
Mar. 25, 2008 |
| 7328342 |
Method for secure communication between two devices |
Feb. 5, 2008 |
| 7324735 |
Image processing |
Jan. 29, 2008 |
| 7286670 |
Method and apparatus for chaotic opportunistic lossless compression of data |
Oct. 23, 2007 |
| 7277546 |
Methods and apparatus for multi-level dynamic security system |
Oct. 2, 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 |
| 7254234 |
Method and apparatus for encrypting and decrypting information |
Aug. 7, 2007 |
| 7242767 |
Recording medium, data recording method and apparatus, data regenerating method and apparatus, and copy control method |
Jul. 10, 2007 |
| 7239708 |
Protecting decrypted compressed content and decrypted decompressed content at a digital rights management client |
Jul. 3, 2007 |
| 7203844 |
Method and system for a recursive security protocol for digital copyright control |
Apr. 10, 2007 |
| 7200751 |
Watermark system |
Apr. 3, 2007 |
| 7200603 |
In a data storage server, for each subsets which does not contain compressed data after the compression, a predetermined value is stored in the corresponding entry of the corresponding compres |
Apr. 3, 2007 |
| 7184548 |
Encoding and decoding methods for secure scalable streaming and related systems |
Feb. 27, 2007 |
| 7174020 |
System and method for real-time secure communication based on multi-level transform and encryption |
Feb. 6, 2007 |
| 7167988 |
Information processing method and information processing apparatus |
Jan. 23, 2007 |
| 7164767 |
Data transfer system, data transfer apparatus, data recording apparatus, and data transfer method |
Jan. 16, 2007 |
| 7123720 |
Key scheduler for encryption apparatus using data encryption standard algorithm |
Oct. 17, 2006 |
| 7085379 |
Image compression device and image decompressing device, and computer-readable recorded medium on which program for allowing computer to execute image compressing method and image decompressin |
Aug. 1, 2006 |
| 7082413 |
System and method for authorized compression of digitized music |
Jul. 25, 2006 |
| 7050583 |
Method and apparatus for streaming data using rotating cryptographic keys |
May. 23, 2006 |
| 7050588 |
System for processing an information signal |
May. 23, 2006 |
| 7023996 |
Encryption for asymmetric data links |
Apr. 4, 2006 |
| 7007165 |
Watermark system |
Feb. 28, 2006 |
| 7006631 |
Method and system for embedding binary data sequences into video bitstreams |
Feb. 28, 2006 |
| 6990202 |
Packetizing devices for secure scalable data streaming |
Jan. 24, 2006 |
| 6985590 |
Electronic watermarking method and apparatus for compressed audio data, and system therefor |
Jan. 10, 2006 |
| 6985589 |
Apparatus and method for encoding and storage of digital image and audio signals |
Jan. 10, 2006 |
| 6961428 |
Method of videotext information encryption and security transmission in a network |
Nov. 1, 2005 |
| 6948073 |
Protecting decrypted compressed content and decrypted decompressed content at a digital rights management client |
Sep. 20, 2005 |
| 6941461 |
System and method of uniquely authenticating each replication of a group of soft-copy documents |
Sep. 6, 2005 |
| 6907123 |
Secure voice communication system |
Jun. 14, 2005 |
| 6892246 |
Computer system and method for storing video data |
May. 10, 2005 |
| 6888944 |
Method for assigning encryption keys |
May. 3, 2005 |
| 6885749 |
Scrambling a compression-coded signal |
Apr. 26, 2005 |
| 6883137 |
System and method for schema-driven compression of extensible mark-up language (XML) documents |
Apr. 19, 2005 |
| 6856687 |
Portable telecommunication security device |
Feb. 15, 2005 |
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