Method of displaying graphic images
OwnerDennis Megarry, Johan A. Van Zijlinventors
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Abstract
A method for viewing images comprises: providing a user interactive image file viewing device 100; segmenting an image file 200 by establishing an offset, a line size, and a step size 201, the offset and line size relating to a first dimension (horizontal) and the step size relating to a second dimension (vertical) being orthogonal to the first dimension, the step size comprises a fixed number of lines, iteratively reading the segment into memory line by line beginning at the offset, until the step size is reached 202. In this manner, the sub-part of an image may be efficiently accessed without having to read the entire image into memory.
Claims18
A method for viewing images comprising:
- providing a user interactive image file viewing device;
- segmenting an image file by
- establishing an offset, a line size, and a step size, the offset and line size relating to a first dimension and the step size relating to a second dimension being orthogonal to the first dimension, the step size comprising a fixed number of lines,
- iteratively reading the segment into memory line by line beginning at the offset, until the step size is reached;
- whereby sub-parts of an image may be efficiently accessed without having to read the entire image into memory.
A method for viewing images comprising:
- providing a user interactive image file viewing device comprising,
- display means for viewing an image file,
- user input means,
- a computer processor and memory effective to,
- load a least a portion of an image file into memory, the memory being operatively coupled to the display means,
- receive user input;
- segmenting an image file by
- establishing an offset, a line size, and a step size, the offset and line size relating to a first dimension and the step size relating to a second dimension being orthogonal to the first dimension, the step size comprising a fixed number of lines;
- iteratively reading the segment into memory line by line beginning at the offset, until the step size is reached;
- the image file being a compressed raster file representative of a geographic image;
- whereby sub-parts of an image may be efficiently accessed without having to read the entire image into memory.
A system for viewing images comprising:
- a USB type A connector for USB memory stick;
- a CF type II slot;
- a SD card slot;
- a 3.5 mm stereo audio jack for headset;
- WIFI 802.11g wireless LAN capability;
- 10/100 MB wired LAN capability;
- an 8.1 inch electronic paper display comprising
- having dimensions of 4.8″×6.4″,
- 768×1024 pixels,
- 16 levels of gray;
- a 400 MHz computer Processor;
- computer memory comprising,
- 64 MB Ram,
- 256 MB memory, 128 MB of which being available for content and expandable via external slots;
- the computer processor and memory being effective to enable the system to perform the steps of,
- segmenting an image file by
- establishing an offset, a line size, and a step size, the offset and line size relating to a first dimension and the step size relating to a second dimension being orthogonal to the first dimension, the step size comprising a fixed number of lines,
- iteratively reading the segment into memory line by line beginning at the offset, until the step size is reached,
- the image file being a compressed raster file representative of a geographic image,
- reading into memory an adjacent portion of a selected image segment;
- touch sensor input using stylus;
- rechargeable battery;
- polyphonic speaker;
- the system having dimensions of 6.1″ wide×8.5 high×0.6 deep;
- the system having weight of 13.7 oz;
- the system having an operating temperature range of between 32° f to 122° f;
- the system having a storage temperature range of −4° f to 158° f.
Dependencies are inferred from the claim text.