GS1 EPC Tag Data Standard 1.6 - Indicod-Ecr

559755985599Table L-1 shows the relevant subset of a hypothetical ID Table for a hypothetical ISOregisteredData Format 99.Table L-1: hypothetical Base ID Table, for the example in Annex LK-Version = 1.0K-TableID = F99B0K-RootOID = urn:oid:1.0.15961.99K-IDsize = 128IDvalue OIDs Data Title FormatString3 1 BATCH/LOT 1*20an8 7 USE BY OR EXPIRY 6n51 3%x30-39 AMOUNT 4*18n125 (7) (1) EXPIRY + BATCH/LOT (6n) (1*20an)K-TableEnd = F99B056005601Appendix MDecoding Packed Objects (non-normative)56025603560456055606560756085609561056115612561356145615561656175618561956205621M.1 OverviewThe decode process begins by decoding the first byte of the memory as a DSFID. If theleading two bits indicate the Packed Objects access method, then the remainder of thisAnnex applies. From the remainder of the DSFID octet or octets, determine the DataFormat, which shall be applied as the default Data Format for all of the Packed Objects inthis memory. From the Data Format, determine the default ID Table which shall be usedto process the ID Values in each Packed Object.Typically, the decoder takes a first pass through the initial ID Values list, as describedearlier, in order to complete the list of identifiers. If the decoder finds any identifiers ofinterest in a Packed Object (or if it has been asked to report back all the data strings froma tag’s memory), then it will need to record the implied fixed lengths (from the ID table)and the encoded variable lengths (from the Aux Format subsection), in order to parse thePacked Object’s compressed data. The decoder, when recording any variable-length bitpatterns, must first convert them to variable string lengths per the table (for example, athree-bit pattern may indicate a variable string length in the range of two to nine).Starting at the first byte-aligned position after the end of the DSFID, parse the remainingmemory contents until the end of encoded data, repeating the remainder of this sectionuntil a Terminating Pattern is reached.Determine from the leading bit pattern (see I.4) which one of the following conditionsapplies:Copyright ©2005- 2011 GS1 AISBL, All Rights Reserved. Page 211 of 218