Real time date compression method and apparatus for a data...

Details Real time date compression method and apparatus for a data... Real time date compression method and apparatus for a data...

2005-09-27

2005-09-27

Wamsley, Patrick (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

Adaptive coding

C707S793000, C708S203000

Reexamination Certificate

active

06950041

ABSTRACT:
A real time data compression method examines whether a present read-in data point is in a predicted tolerable error range. If yes, the previous data point is deemed as redundant and is ignored and after which a new data point is read in for comparing again. When a predetermined amount of data points is continuously ignored, it means the data is steady and only the final data point of these ignored ones is recorded. Otherwise, when data is varied greatly during a period, only the total amount of these varying data points and their value are recorded so the memory capacity for storing the compressed data is saved. Furthermore, the compressed data is stored in a form of a data structure in which the compressed data are expressed by multiple blocks. The block form allows increase of the efficiency of the searching process of the compressed data.

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