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AssigneeMicrosoft Corporation
InventorsJian Wang, Zhouchen Lin, Yue Li, Chunhui Zhang, Yingnong Dang, Jiang Wu, Qiang Wang
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In accordance with embodiments of the invention, local metadata is embedded into an embedded interactive code document by combining a first m-array and a second m-array to generate a combined m-array with encoded local metadata such that a start position of the second m-array in the combined m-array is shifted, by an amount that is based on the local metadata, relative to a start position of the first m-array in the combined m-array. The first m-array and the second m-array may contain the same repeating bit sequence. Local metadata may be decoded from the embedded interactive code document by decoding the local metadata from the combined m-array by determining the amount by which the second m-array is shifted, relative to the first m-array, in the combined m-array.
A system that embeds local metadata into an embedded interactive code document, the system comprising:
A system that decodes local metadata from an embedded interactive code document, the system comprising:
A computer-readable medium containing computer-executable instructions for embedding local metadata into an embedded interactive code document by combining a first m-array and a second m-array to generate a combined m-array with encoded local metadata such that a start position (xd,yd) of the second m-array in the combined m-array is shifted, by an amount that is based on the local metadata, relative to a start position of the first m-array in the combined m-array, wherein the first m-array contains a first repeating sequence of bits, and the second m-array contains a second repeating sequence of bits that is the same as the first repeating sequence of bits.
Dependencies are inferred from the claim text.