Title:
DATA COMPRESSION DEVICE, DATA COMPRESSION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2014/118954
Kind Code:
A1
Abstract:
A data compression device is provided with a receiving unit, a generation unit, a selection unit, and a compression unit. The receiving unit receives a plurality of input data that are input in a time-series. The generation unit generates a plurality of initial point candidates which fall within a threshold with respect to deviation from an initial point datum, which is an input datum that has been input at a first point in time. Using the initial point candidates, an end-point datum which is an input datum that has been input at a second point in time, and intermediate data which are input data that have been input at points in time between the first point in time and the second point in time, the selection unit selects from the initial point candidates the initial point candidate that results in a greater number, in comparison to the other initial point candidates, of points of intermediate data that fall within the threshold with respect to deviation in an approximation between the respective initial point candidate and an end point datum. The compression unit outputs the selected initial point candidate and end-point datum as output data in which the initial point datum, the intermediate data, and the end-point datum have been compressed.
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Inventors:
HATTORI MASAKAZU (JP)
Application Number:
PCT/JP2013/052245
Publication Date:
August 07, 2014
Filing Date:
January 31, 2013
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA SOLUTIONS CORP (JP)
TOSHIBA SOLUTIONS CORP (JP)
International Classes:
H03M7/30
Domestic Patent References:
| WO2001095496A1 | 2001-12-13 |
Foreign References:
| JP2003015734A | 2003-01-17 | |||
| JP2012010319A | 2012-01-12 |
Other References:
FENG XIAODONG ET AL.: "An Improved Process Data Compression Algorithm", PROCEEDINGS OF THE 4TH WORLD CONGRESS ON INTELLIGENT CONTROL AND AUTOMATION, vol. 3, June 2002 (2002-06-01), pages 2190 - 2193, XP010595009
GANG CHEN ET AL.: "An Optimized Algorithm for Lossy Compression of Real-Time Data, Intelligent Computing and Intelligent Systems(ICIS", 2010 IEEE INTERNATIONAL CONFERENCE ON, vol. 2, October 2010 (2010-10-01), pages 187 - 191, XP031818817
MATTHEW J. WATSON ET AL.: "A Practical Assessment of Process Data Compression Techniques", IND. ENG. CHEM. RES., vol. 37, no. 1, 1998, pages 267 - 274
E. H. BRISTOL: "Swinging Door Trending: Adaptive Trend Recording?", ISA NATIONAL CONF. PROC., 1990, pages 749 - 754
PETER A. JAMES, DATA COMPRESSION FOR PROCESS HISTORIANS, 1995, Retrieved from the Internet
GANG CHEN ET AL.: "An Optimized Algorithm for Lossy Compression of Real-Time Data, Intelligent Computing and Intelligent Systems(ICIS", 2010 IEEE INTERNATIONAL CONFERENCE ON, vol. 2, October 2010 (2010-10-01), pages 187 - 191, XP031818817
MATTHEW J. WATSON ET AL.: "A Practical Assessment of Process Data Compression Techniques", IND. ENG. CHEM. RES., vol. 37, no. 1, 1998, pages 267 - 274
E. H. BRISTOL: "Swinging Door Trending: Adaptive Trend Recording?", ISA NATIONAL CONF. PROC., 1990, pages 749 - 754
PETER A. JAMES, DATA COMPRESSION FOR PROCESS HISTORIANS, 1995, Retrieved from the Internet
Attorney, Agent or Firm:
SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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