Method of recording/reproducing data of mesh pattern, and apparatus therefor
AssigneeCasio Computer Co., Ltd.
InventorsShigenori Morikawa, Takeshi Matsuoka, Hiroshi Chikakiyo
Life of this patent
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Abstract
A data reading apparatus reads data of dots from a recording sheet on which data is recorded in the form of a mesh pattern, and decodes the read data into binary data. The data reading apparatus has an image sensor to read black/white levels of dots of the mesh pattern using the image sensor and to binarize the read levels by a hardware component or CPU processing according to software. An image can have a high recording density by minimizing a dot size.
Claims6
A data recording medium in which an image is recorded, which includes a mesh pattern formed of a plurality of one-bit images arranged in a checkerboard pattern, each of said one-bit images having a plurality of dark and light patterns therein, and wherein each of the one-bit images corresponds to a respective one bit of a binary data signal to be recorded and an arrangement of said dark and light patterns in a one-bit image depends on a value of the respective one bit.
A data recording medium in which
- an image is recorded, which includes a mesh pattern formed of a plurality of one-bit images arranged in a checkerboard pattern, each of said one-bit-images having a plurality of dark and light patterns therein, and wherein each of the one-bit images corresponds to a respective one bit of a binary data signal to be recorded and an arrangement of said dark and light patterns in a one-bit image depends on a value of the respective one bit, said mesh pattern including uniform identifiable boundaries between each of said one-bit images and the dark and light patterns therein.
A data recording medium on which an image is formed, which image includes a mesh pattern having a rectangular shape as a whole and including respective encoded bit data formed by selective dark and light areas in said pattern,
- the image including:
- first indicia for indicating a vertical data sampling position of said mesh pattern;
- and
- second indicia for indicating a horizontal data sampling position of said mesh pattern.
A data recording medium on which an image is formed, which image includes a mesh pattern having a rectangular shape as a whole and including respective encoded bit data formed by selective dark and light areas in said pattern,
- the image including:
- first indicia for indicating a vertical data sampling position of said mesh pattern;
- and
- second indicia for indicating a boundary position of horizontally adjacent dark and light areas of said mesh pattern.
Dependencies are inferred from the claim text.