Data format for efficient encoding and access of multiple data items in RFID tags
First Claim
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1. A data structure stored in a memory of a radio frequency identification (RFID) tag comprising:
- a packed object in the memory of the RFID tag, the packed object including;
a length section including an indication of the number of identifiers in the packed object,an identifier section including a directory of indices representing an identifier for each data item contained within the packed object;
a data section encoding a data portion associated with each data item included in the identifier section;
wherein the packed object provides a complete list of the data items in the data section without requiring a read of the data section; and
at least two or more of the data items are concatenated and encoded as a single unit, andwherein the at least two of more of the data items comprise items from different data systems.
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Abstract
Methods and systems for optimizing storage of data items in a memory of a radio frequency identification tag (RFID) are provided. The data structure for optimized storage includes a packed object having a length section including an indication of a number of identifiers in the packed object, an identifier section including a directory of indices representing an identifier for each data item contained within the packed object and a data section encoding a data portion associated with each data item included in the data section.
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Citations
17 Claims
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1. A data structure stored in a memory of a radio frequency identification (RFID) tag comprising:
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a packed object in the memory of the RFID tag, the packed object including; a length section including an indication of the number of identifiers in the packed object, an identifier section including a directory of indices representing an identifier for each data item contained within the packed object; a data section encoding a data portion associated with each data item included in the identifier section; wherein the packed object provides a complete list of the data items in the data section without requiring a read of the data section; and at least two or more of the data items are concatenated and encoded as a single unit, and wherein the at least two of more of the data items comprise items from different data systems. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A radio frequency identification (RFID) tag, comprising:
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an antenna; control logic; and a memory including a data structure embodied thereon, the data structure comprising; a packed object in the memory of the RFID tag, the packed object including; a length section including an indication of the number of identifiers in the packed object, an identifier section including a directory of indices representing an identifier for each data item contained within the packed object; a data section encoding a data portion associated with each data item included in the identifier section, wherein the packed object provides a complete list of the data items in the data section without requiring a read of the data section; and at least two or more of the data items are concatenated and encoded as a single unit, and wherein the at least two of more of the data items comprise items from different data systems. - View Dependent Claims (12, 13, 14, 15)
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16. A computing device, comprising:
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a central processing unit; and a memory including a data structure embodied thereon, the data structure comprising; a packed object in the memory of the RFID tag, the packed object including; a length section including an indication of the number of identifiers in the packed object, an identifier section including a directory of indices representing an identifier for each data item contained within the packed object; a data section encoding a data portion associated with each data item included in the identifier section, wherein the packed object provides a complete list of the data items in the data section without requiring a read of the data section; and at least two or more of the data items are concatenated and encoded as a single unit, and wherein the at least two of more of the data items comprise items from different data systems. - View Dependent Claims (17)
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Specification