Enhanced data compression technique
First Claim
1. An encoder for compressing image information comprising:
- a memory configured to store a predefined compression code corresponding to one of white image data and black image data; and
a processor configured to receive image data including a first sequence of characters representing an image, to read a first character in the first sequence of characters, to determine that the read first character corresponds to the one of the white and the black image data, to read one or more characters occurring immediately subsequent to the first character in the first sequence of characters, to determine that the read one or more characters match the read first character, to generate a second sequence of characters, including the stored predefined compression code, representing the matching one or more characters.
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Abstract
An encoder for compressing image information includes a memory and processor. The memory stores a predefined compression code corresponding to white image data or black image data. The processor receives a first sequence of characters representing an image, reads a first character in the sequence. If it is determined that the read character represents the one of the white or black image data, the processor reads one or more characters occurring immediately subsequent to the first character in the sequence of characters. If it is determined that the read one or more characters match the read first character, the processor generates a second sequence of characters, including the stored predefined compression code, representing the matching one or more characters.
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Citations
20 Claims
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1. An encoder for compressing image information comprising:
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a memory configured to store a predefined compression code corresponding to one of white image data and black image data; and
a processor configured to receive image data including a first sequence of characters representing an image, to read a first character in the first sequence of characters, to determine that the read first character corresponds to the one of the white and the black image data, to read one or more characters occurring immediately subsequent to the first character in the first sequence of characters, to determine that the read one or more characters match the read first character, to generate a second sequence of characters, including the stored predefined compression code, representing the matching one or more characters. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for compressing image information comprising:
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receiving a first sequence of characters representing an image;
reading a first character in the first sequence of characters;
determining that the read first character represents one of a white and a black portion of the image;
reading one or more of the characters occurring immediately subsequent to the first character in the first sequence of characters;
determining that the read one or more characters in the first sequence of characters match the read first character in the first sequence of characters; and
representing the matching one or more characters in the first sequence of characters with a second sequence of characters including a predefined compression code and corresponding to the one of the white and the black portion of the image. - View Dependent Claims (8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 20)
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14. An imaging system comprising:
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a raster image processor configured to receive a first sequence of characters representing an image and to convert the first sequence of characters into a second sequence of characters including a predefined compression code for one of white image data and black image data; and
an imager controller configured to receive the second sequence of characters representing the image and to covert the second sequence of characters into the first sequence of characters based on the predefined compression code.
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19. An encoder comprising:
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a memory configured to store a predefined compression code for one of white image data and black image data; and
a processor configured to convert a first sequence of characters representing an image into a second sequence of characters including the stored predefined compression code.
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Specification