Data compression method and device
AssigneeDenso Corporation
InventorsTadashi Kawagoe, Kazuyoshi Suzuki
Life of this patent
Estimating the term…
Abstract
In a data compression method of compressing data including at least one of a character and a number, the data is converted into character string data composed of 0s and 1s. Each of the 0s and 1s included in the character string data is treated as 1-bit data, and the 1-bit data is arranged in a data region having a two-dimensional array. Lossless compression of the data arranged in the data region is performed by using an image processing method.
Claims18
A data compression method of compressing data including at least one character and at least one number, the data compression method comprising the steps of:
- converting the data including the at least one character and the at least one number into binary string data composed of only 1s and 1s;
- converting the binary string data into pseudo image data by dividing the binary string data into a sequence of segments each having a predefined number of bits and storing the sequence of segments in a two-dimensional array of pixels, with each pixel corresponding to a segment from the sequence of segments and having a color value based on the predefined number of bits of the corresponding segment;
- and
- performing lossless compression on the pseudo image data by using an image processing method.
A data compression device for compressing data including at least one character and at least one number, the data compression device comprising:
- a conversion unit configured to convert the data including the at least one character and the at least one number into binary string data composed of only 0s and 1s;
- an arrangement unit configured to convert the binary string data into pseudo image data by dividing the binary string data into a sequence of segments each having a predefined number of bits and storing the sequence of segments in a two-dimensional array of pixels, with each pixel corresponding to a segment from the sequence of segments and having a color value based on the predefined number of bits of the corresponding segment;
- and
- a compression unit configured to perform lossless compression on the pseudo image data by using an image processing method.
Dependencies are inferred from the claim text.