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Class 380/269 - Having compression


Subclass of Class 380 - Cryptography
Definition: Subject matter wherein the quantity of data representing
No. of patents: 166
Last issue date: 02/21/2012


1          
NumberTitleIssue Date
8121292Method and apparatus for scrambling information bits on a channel in a communications system
A control channel in a communication system transmits messages in a one or multiple-slot format. To assure consistency of a message, a content quality indicator is included in the message. Because a terminal receiving the message does not know the number of slots co...
02/21/2012
8041038System and method for decompressing and making publically available received media content
An apparatus for compressing media content is disclosed. The apparatus divides the media content into at least three predetermined portions, compresses each of the at least three portions using one of at least three different compression algorithms and makes the at ...
10/18/2011
7995759System and method for parallel compression of a single data stream
A system and method provide parallel compression of a single data stream is provided. A data stream entering a storage encryption processor is split by a splitting stage into a plurality of substantially equal segments. Each of the segments is stored in one of a fir...
08/09/2011
7953225Mobile wireless communications device with software installation and verification features and related methods
A mobile wireless communications device which may include a housing, an antenna carried by the housing, a wireless transceiver carried by the housing and connected to the antenna, and at least one memory for storing a compressed software file, a digest of an uncompr...
05/31/2011
7936877Data transfer system, data transfer device, data recording device and data transfer method
It is an object to provide an efficient transfer of content data. In a case of transferring the content data from a data transfer device on a primary recording medium side to a data recording device to record the content data in a secondary recording medium, a data ...
05/03/2011
7864959Methods and apparatus for multi-level dynamic security system
Methods and apparatus for converting original data into a plurality of sub-bands using wavelet decomposition; encrypting at least one of the sub-bands using a key to produce encrypted sub-band data; and transmitting the encrypted sub-band data to a recipient separat...
01/04/2011
7706538System, method and data storage device for encrypting data
A system, method and data storage device for encrypting data to provide at-rest data encryption of data in the data storage device. The system includes a compression engine for receiving a host data stream packet and selectively generating a compressed data packet, ...
04/27/2010
7664267Bit based arithmetic coding using variable size key cipher
An encryption device and method and decryption device and method which implement a bit-based encryption scheme and hardware design. The encryption device includes a random number generator, receiving a main key, determining a working key using at least one random nu...
02/16/2010
7492902Custom character-coding compression for encoding and watermarking media content
An apparatus for compressing media content is disclosed. The apparatus divides the media content into at least three predetermined portions, compresses each of the at least three portions using one of at least three different compression algorithms and makes the at ...
02/17/2009
7474750Dynamic content-aware memory compression and encryption architecture
An architecture for content-aware compression and/or encryption of various segments of a application is disclosed. The architecture advantageously allows decompression and decryption units to be placed various levels of a memory hierarchy. ...
01/06/2009
7440569Tate pairing techniques for use with hyperelliptic curves
Methods and apparati are provided for determining a “Squared Tate pairing” for hyperelliptic curves and using the results to support at least one cryptographic process. The improved techniques provide increased efficiency and an alternative method to the convent...
10/21/2008
7383228Method and system for preventing unauthorized rerecording of multimedia content
A method, system and computer readable medium for the blocking of recording digital content at an end user multimedia end-user-system during the rendering of encrypted digital multimedia files. Before the process of rendering of encrypted digital multimedia can be s...
06/03/2008
7372963Device for compression and encryption, and device for decompression and decryption
To reduce processing load or processing time required for compression and encryption of data. Data to be compressed, such as image data, is divided into specified block sizes by am image divider (10). A quantizer (12) references a quantization table (
05/13/2008
7370212Issuing a publisher use license off-line in a digital rights management (DRM) system
A publishing user publishes digital content and issues to itself a corresponding digital publisher license to allow itself to render the published digital content. The publishing user is supplied with a publishing certificate from a digital rights management (DRM) s...
05/06/2008
7370120Method and system for reducing network latency in data communication
Methods and systems for accelerating data communication by reducing network latency particularly by data compression in which requested data is recursively compressed by an encoder and sent to the requester in codes which may or may not be understood by the requeste...
05/06/2008
7363511Method for processing audiovisual information in an electronic device, a system, and an electronic device
A method for processing audiovisual information in an electronic device comprises at least one control block for controlling the operation of the electronic device, and a memory. The audiovisual information is encrypted. The control block is provided with a protecte...
04/22/2008
7360230Overlay management
A method of personalizing a broadcast channel, comprising: receiving an input from a user (110); and personalizing the broadcast channel; and transmitting the personalized broadcast channel to the user using a compressed video transport method. Preferably, co...
04/15/2008
7356700Digital watermark-embedding apparatus and method, digital watermark-detecting apparatus and method, and recording medium
A digital image signal is divided into blocks. Each of the divided blocks is subjected to orthogonal transformation. As a result, the divided blocks are transformed into several frequency components. One or more frequency components are selected in accordance with a...
04/08/2008
7349539Encoding and encrypting devices for secure scalable data streaming
A device and method thereof for encoding and encrypting data. The device includes a segmenter adapted to receive the data and segment at least a portion of the data into regions, a scalable encoder adapted to scalably encode at least one of the regions into scalably...
03/25/2008
7334129Embedding supplemental data in an encoded signal
There are two different methods of embedding supplemental data, e.g. for watermarking into an encoded signal. I. For an encoder, which needs auxiliary information for encoding (=probability information in this special case), the auxiliary information to encod...
02/19/2008
7330562Watermarking in the time-frequency domain
Methods and systems for time-frequency domain watermarking of media signals, such as audio and video signals. An encoding method divides the media signal into segments, transforms each segment into a time-frequency representation, and computes a time-frequency domai...
02/12/2008
7328342Method for secure communication between two devices
A method for a secure transmission of information between a first and a second module is disclosed. Each module contains one of the keys of two pairs of keys. A first number and a second number are randomly generated in the first module, and a third number is random...
02/05/2008
7324133Method and apparatus for controlled camera useability
A programmable digital camera requiring a programming password to be entered to access the camera's programmability. The camera further includes programming so as to allow the camera to be operated only for a specified time interval, after which the camera becomes i...
01/29/2008
7324735Image processing
An image data processing system is configured to store image data with redundant protection in the form of a redundant array of inexpensive disks (RAID). An input card is configured to receive an input stream of real-time digital video data, possibly provided by a v...
01/29/2008
7319751Data encryption
A method of encrypting a data unit, the method comprising the steps of dividing the data unit into a series of data blocks, and for each data block, applying a block cipher function to a data block counter value to generate an encrypted block counter value, performi...
01/15/2008
7318236Tying a digital license to a user and tying the user to multiple computing devices in a digital rights management (DRM) system
A first trusted component on a first computing device performs cryptography, evaluation, and enforcement and is tied thereto, and a first user-machine certificate associated with the first computing device is tied to a user. Correspondingly, a second trusted compone...
01/08/2008
7313236Methods and apparatus for secure and adaptive delivery of multimedia content
Techniques for securely and adaptively delivering multimedia content. It is assumed that a set of alternate access units for each time slot is obtained. Then, the encryption stream index of each access unit from the set of alternate access units of the previous time...
12/25/2007
7313237Methods and systems for providing variable rates of service for accessing networks, methods and systems for accessing the internet
Systems and methods for providing network access, e.g. Internet access, are described. An architecture includes a host organization network through which network access is provided. The host organization network can be advantageously deployed in public areas such as...
12/25/2007
7313235Device and method of applying a parity to encrypt data for protection
A device and method of applying a parity to encrypt data for protection is disclosed. A parity generator generates a parity bit in accordance with a data to be outputted. A first parity location generator generates an inserting position N for the parity bit in accor...
12/25/2007
7286670Method and apparatus for chaotic opportunistic lossless compression of data
The present invention is a compression method for compressing digital data. The data is strings of digital values, which can be broken down to a series of 1's and 0's. The present inventive method uses a chaotic system to compress the data. The first step in the inv...
10/23/2007
7277546Methods and apparatus for multi-level dynamic security system
Methods and apparatus for converting original data into a plurality of sub-bands using wavelet decomposition; encrypting at least one of the sub-bands using a key to produce encrypted sub-band data; and transmitting the encrypted sub-band data to a recipient separat...
10/02/2007
7271833Image pickup apparatus, image data processing apparatus, image data outputting method, image data processing system and image pickup device
Intentionally defective pixels, whose number exceeds a storage capacity of a memory for defect correction, are formed in a predetermined pattern in an image pickup device. There is a plurality of patterns of the defective pixels, each being unique to each camera (im...
09/18/2007
7272718Device, method and storage medium for superimposing first and second watermarking information on an audio signal based on psychological auditory sense analysis
In a signal processing device and its method as well as a program storing medium, psychological auditory sense analysis of the survival state of an input signal of the time when the input signal has been compressed is performed in response to the compression process...
09/18/2007
7269622Watermarking messaging sessions
A method, system and program is provided for watermarking messaging sessions such that the origin of recorded messaging sessions is traceable. A distinguishable watermark is applied to message entries within a messaging session. The messaging entries are then record...
09/11/2007
7263188Data delivery system, server apparatus, reproducing apparatus, data delivery method, data playback method, storage medium, control, signal, and transmission data signal
A data delivery system has a capability of effectively and reliably protecting copyright of the data. A video source of a movie or the like is delivered in the form of encrypted data from a server apparatus to a playback apparatus. A decryption key used to decrypt t...
08/28/2007
7257617Notifying users when messaging sessions are recorded
A method, system and program for notifying users when messaging sessions are recorded are provided. In response to receiving a request to record a messaging session, a requested selection of multiple message entries associated with the messaging session are recorded...
08/14/2007
7257710Additional-data embedding apparatus and additional-data embedding method
The present invention provides an additional-watermark embedding apparatus for embedding predetermined additional data into original data. The additional-watermark embedding apparatus includes an adder for summing the original data and the additional data, a first a...
08/14/2007
7254234Method and apparatus for encrypting and decrypting information
An encryption key is generated in response to a plurality of information pieces being bases for the encryption key. Original information is encrypted into encryption-resultant information in response to the generated encryption key. The encryption-resultant informat...
08/07/2007
7242767Recording medium, data recording method and apparatus, data regenerating method and apparatus, and copy control method
Data is recorded in a first part PA1 in accordance with a signal format same as that of an existing CD at the lower limit (1.5 μm) of an allowable value of a Wreck pitch and the lower limit (1.2 m/sec) of a linear velocity. As a result, the data for the maxi...
07/10/2007
7239708Protecting decrypted compressed content and decrypted decompressed content at a digital rights management client
Encrypted compressed content is produced by encrypting content based at least in part on a content key, and compressing the content based at least in part on the content key. Thus, the content key is employed to encrypt the content and also to compress the content. ...
07/03/2007
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