US 6,553,381 B2 · Time-varying randomization for data synchronization and implicit information transmission

Abstract

The present invention provides a system and method for the time-varying randomization of a signal stream to provide for a robust error recovery. A current block of data is randomized in accordance with data from the current block and data from at least one temporally adjacent block of data. The present invention also provides a system and method for time-varying derandomization of a randomized signal stream and alternately delayed-decoding of the signal stream. Randomized data is derandomized using the current block of data and data from at least one temporally adjacent block. In addition, decoding of the current block and the adjacent block is delayed in order to facilitate recovery of lost or damaged compression parameters of encoded data.

Claims1

Dependent claims

A memory for storing data for access by an application program being executed on a data processing system, comprising:

a data structure stored in said memory, said data structure including information resident in a database used by said application program and comprising,
a plurality of packet structures used for the transmission of data, wherein each packet structure comprises a dynamic range data object of spatially and temporally disjointed data objects within the data, and
a set of block attributes for each dynamic range data object.

Dependencies are inferred from the claim text.

Facts

Application

10/002,872Filed 14 Nov 2001 · division

Priority

29 Jun 1999

Published

US 2002/0059550 A116 May 2002

Granted

22 Apr 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04N 9/888
Signal drop-out compensation: for signals recorded by pulse code modulation
H04N 9/8047
Involving data reduction: using transform coding
H04N 19/593
Using predictive coding: involving spatial prediction techniques
H04N 19/89
Using pre-processing or post-processing specially adapted for video compression: involving methods or arrangements for detection of transmission…

Time-varying randomization for data synchronization and implicit information transmission

Life of this patent

Time-varying randomization for data synchronization and implicit information transmission

Life of this patent

Abstract

Claims1