EP2257915A1 - Method for generating variable format code - Google Patents

Method for generating variable format code

Info

Publication number
EP2257915A1
EP2257915A1 EP08873504A EP08873504A EP2257915A1 EP 2257915 A1 EP2257915 A1 EP 2257915A1 EP 08873504 A EP08873504 A EP 08873504A EP 08873504 A EP08873504 A EP 08873504A EP 2257915 A1 EP2257915 A1 EP 2257915A1
Authority
EP
European Patent Office
Prior art keywords
field
code
length
fields
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08873504A
Other languages
German (de)
French (fr)
Other versions
EP2257915A4 (en
Inventor
Jun Seob Lee
Sang Keun Yoo
Yong-Woon Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electronics and Telecommunications Research Institute ETRI
Original Assignee
Electronics and Telecommunications Research Institute ETRI
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electronics and Telecommunications Research Institute ETRI filed Critical Electronics and Telecommunications Research Institute ETRI
Publication of EP2257915A1 publication Critical patent/EP2257915A1/en
Publication of EP2257915A4 publication Critical patent/EP2257915A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092

Definitions

  • the present invention relates to a method of generating a variable format code, and more particularly, to a method of generating a variable format code that may include information associated with defining an internal format of a code to thereby variably construct the format of the code.
  • a code denotes information that is recorded in a radio frequency identification
  • RFID RFID tag and the like, exists on a computer, or exists in a printed format.
  • the code may consist of at least one field. Generally, the code may be used to identify an object or to identify information related to an object with an assigned code.
  • the length of each of fields constituting the code may be set to a particular value in a design process.
  • the code may be constructed in a form that the length of each field is partially variable but the entire length of the code is fixed.
  • An aspect of the present invention provides a method of generating a variable format code that can variably set the entire length of a code and the length of each field by inserting, into the code, information associated with an internal format of the code.
  • a method of generating a variable format code including: setting the entire length of a code and a length of each of fields constituting the code, based on field number information associated with a number of the fields constituting the code and field length information associated with a length of each of the fields; and constructing the code based on the set entire length of the code and the length of each of the fields constituting the code.
  • an electronic recording medium including: field number information associated with a number of fields constituting a code; and field length information associated with a length of each field, wherein the electronic recording medium stores a variable format code where the entire length of the code and the length of each field is stored based on the field number information and the field length information.
  • the electronic recording medium may include at least one of a computer-readable recording medium and a radio frequency identification (RFID) tag.
  • RFID radio frequency identification
  • the field number information when the field number information is set to a particular value, at least one of the field length information and the number of fields may be constructed using the particular value.
  • a number of pieces of information associated with the length of each field may be mapped with the number of fields.
  • FIG. 1 illustrates a variable format code according to an embodiment of the present invention
  • FIGS. 2 and 3 illustrate tables for describing a method of generating a variable format code according to an embodiment of the present invention.
  • FIG. 4 is a flowchart illustrating a method of generating a variable format code according to an embodiment of the present invention. Mode for the Invention
  • FIG. 1 illustrates a variable format code according to an embodiment of the present invention.
  • the variable format code according to an embodiment of the present invention will be described with reference to FIG. 1.
  • a code may include field number information 110 associated with a number of fields constituting the code, field length information 120 associated with the length of each field, and a field 130.
  • the field length information 120 and the number of fields 130 may be constructed using the particular value.
  • the field number information 110, the field length information 120, and the field 130 may be determined according to a predetermined table value.
  • the code may be constructed to additionally include "m" fields.
  • the field length information 120 and the field 130 may be n, respectively. More specifically, when the field number information 110 is four, four field length information 120 and four fields 130 may be provided.
  • a number of pieces of the field length information 120 may be mapped with the number of fields 130.
  • the code may be recorded in a computer-readable recording medium or a radio frequency identification (RFID) tag.
  • RFID radio frequency identification
  • FIGS. 2 and 3 illustrate tables for describing a method of generating a variable format code according to an embodiment of the present invention. Hereinafter, the tables will be described in detail with reference to FIGS. 2 and 3.
  • field number information 210 may be designated according to the table.
  • each piece of information may be defined as follows. Specifically, when the field number information 210 is "00", a length of field length information 220, a number of pieces of field length information 225, and a number of fields 230 may be "reserved for a later use”. When the field number information 210 is 01, the length of field length information is 2 bits, the number of pieces of field length information is 1, and the number of fields 230 is also 1. Also, when the field number information 210 is " 10", the length of field length information 220 is 4bits, the number of pieces of field length information 225 is 2, and the number of fields 230 is 2. When the field number information 210 is 11, the length of field length information 220 is 6 bits, the number of pieces of field length in- formation 225 is 3, and the number of fields 230 is 3.
  • the length of field may be designated as eight bits.
  • the length of field 320 may be designated as 16 bits.
  • the length of field 320 may be designated as 32 bits.
  • the length of field 320 may be designated as 64 bits.
  • FIG. 4 is a flowchart illustrating a method of generating a variable format code according to an embodiment of the present invention. Hereinafter, the method of generating the variable format code will be described with reference to FIG. 4.
  • the method may set the entire length of a code and a length of each of fields constituting the code, based on field number information associated with a number of the fields constituting the code and field length information associated with a length of each of the fields.
  • the field number information is set to a particular value
  • at least one of the field length information and the number of fields may be constructed using the particular value.
  • a number of pieces of the field length information may be mapped with the number of fields.
  • the method may construct the code based on the set entire length of the code and the length of each of the fields constituting the code.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

A method of generating a variable format code, the method including: setting the entire length of a code and a length of each of fields constituting the code, based on field number information associated with a number of the fields constituting the code and field length information associated with a length of each of the fields; and constructing the code based on the set entire length of the code and the length of each of the fields constituting the code is provided.

Description

Description METHOD FOR GENERATING VARIABLE FORMAT CODE
Technical Field
[1] The present invention relates to a method of generating a variable format code, and more particularly, to a method of generating a variable format code that may include information associated with defining an internal format of a code to thereby variably construct the format of the code.
[2] This work was supported by the IT R&D program of MIC/IITA. [Development of
Mobile and Next Generation RFID Technology Standard] Background Art
[3] A code denotes information that is recorded in a radio frequency identification
(RFID) tag and the like, exists on a computer, or exists in a printed format.
[4] The code may consist of at least one field. Generally, the code may be used to identify an object or to identify information related to an object with an assigned code.
[5] Generally, the length of each of fields constituting the code may be set to a particular value in a design process. Specifically, the code may be constructed in a form that the length of each field is partially variable but the entire length of the code is fixed.
[6] However, in the case of the conventional code, even when the length of each field is fixed or the length of each field is partially variable, the entire length of the code is fixed. Therefore, the code used in various types of fields may not be provided in an optimal format. Disclosure of Invention Technical Problem
[7] An aspect of the present invention provides a method of generating a variable format code that can variably set the entire length of a code and the length of each field by inserting, into the code, information associated with an internal format of the code. Technical Solution
[8] According to an aspect of the present invention, there is provided a method of generating a variable format code, the method including: setting the entire length of a code and a length of each of fields constituting the code, based on field number information associated with a number of the fields constituting the code and field length information associated with a length of each of the fields; and constructing the code based on the set entire length of the code and the length of each of the fields constituting the code.
[9] In this instance, when the field number information may be set to a particular value, at least one of the field length information and the number of fields is constructed using the particular value. [10] Also, a number of pieces of the field length information may be mapped with the number of fields. [11] Also, the code may include the fields, the field number information associated with the number of fields, and the field length information associated with the length of each field. [12] According to another aspect of the present invention, there is provided an electronic recording medium including: field number information associated with a number of fields constituting a code; and field length information associated with a length of each field, wherein the electronic recording medium stores a variable format code where the entire length of the code and the length of each field is stored based on the field number information and the field length information. [13] In this instance, the electronic recording medium may include at least one of a computer-readable recording medium and a radio frequency identification (RFID) tag. [14] Also, when the field number information is set to a particular value, at least one of the field length information and the number of fields may be constructed using the particular value. [15] Also, a number of pieces of information associated with the length of each field may be mapped with the number of fields.
Advantageous Effects
[16] According to the present invention, it is possible to variably set the entire length of a code and the length of each of fields constituting the code by including, into the code, information associated with a format of the code. Therefore, it is possible to flexibly provide various types of optimal code formats. Brief Description of the Drawings
[17] FIG. 1 illustrates a variable format code according to an embodiment of the present invention;
[18] FIGS. 2 and 3 illustrate tables for describing a method of generating a variable format code according to an embodiment of the present invention; and
[19] FIG. 4 is a flowchart illustrating a method of generating a variable format code according to an embodiment of the present invention. Mode for the Invention
[20] Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. The embodiments are described below in order to explain the present invention by referring to the figures.
[21] FIG. 1 illustrates a variable format code according to an embodiment of the present invention. Hereinafter, the variable format code according to an embodiment of the present invention will be described with reference to FIG. 1.
[22] As shown in FIG. 1, a code may include field number information 110 associated with a number of fields constituting the code, field length information 120 associated with the length of each field, and a field 130.
[23] It is possible to set the entire length of a code and a length of each of fields constituting the code, based on the field number information 110 and the field length information 120.
[24] Specifically, when the field number information 110 is set to a particular value, the field length information 120 and the number of fields 130 may be constructed using the particular value.
[25] In this instance, the field number information 110, the field length information 120, and the field 130 may be determined according to a predetermined table value. Regardless of information associated with a code format, that is, a code format indicator, the code may be constructed to additionally include "m" fields.
[26] For example, as shown in FIG. 1, when the field number information 110 includes n pieces of information, the field length information 120 and the field 130 may be n, respectively. More specifically, when the field number information 110 is four, four field length information 120 and four fields 130 may be provided.
[27] As described above, a number of pieces of the field length information 120 may be mapped with the number of fields 130.
[28] According to an aspect of the present invention, the code may be recorded in a computer-readable recording medium or a radio frequency identification (RFID) tag.
[29] FIGS. 2 and 3 illustrate tables for describing a method of generating a variable format code according to an embodiment of the present invention. Hereinafter, the tables will be described in detail with reference to FIGS. 2 and 3.
[30] As shown in a table of FIG. 2, field number information 210 may be designated according to the table.
[31] When the field number information is designated as 2 bits, each piece of information may be defined as follows. Specifically, when the field number information 210 is "00", a length of field length information 220, a number of pieces of field length information 225, and a number of fields 230 may be "reserved for a later use". When the field number information 210 is 01, the length of field length information is 2 bits, the number of pieces of field length information is 1, and the number of fields 230 is also 1. Also, when the field number information 210 is " 10", the length of field length information 220 is 4bits, the number of pieces of field length information 225 is 2, and the number of fields 230 is 2. When the field number information 210 is 11, the length of field length information 220 is 6 bits, the number of pieces of field length in- formation 225 is 3, and the number of fields 230 is 3.
[32] As shown in a table of FIG. 3, when field length information 310 is 00, the length of field may be designated as eight bits. When the field length information 310 is 01, the length of field 320 may be designated as 16 bits. When the field length information 310 is 10, the length of field 320 may be designated as 32 bits. When the field length information 310 is 11, the length of field 320 may be designated as 64 bits.
[33] FIG. 4 is a flowchart illustrating a method of generating a variable format code according to an embodiment of the present invention. Hereinafter, the method of generating the variable format code will be described with reference to FIG. 4.
[34] In operation S410, the method may set the entire length of a code and a length of each of fields constituting the code, based on field number information associated with a number of the fields constituting the code and field length information associated with a length of each of the fields.
[35] When the field number information is set to a particular value, at least one of the field length information and the number of fields may be constructed using the particular value.
[36] In particular, a number of pieces of the field length information may be mapped with the number of fields.
[37] In operation S420, the method may construct the code based on the set entire length of the code and the length of each of the fields constituting the code.
[38] As described above, according to the present invention, it is possible to variably set the entire length of a code and the length of each of fields constituting the code by including, in the code, information associated with a code format. Therefore, it is possible to flexibly provide various types of optimal code formats.
[39] Although a few embodiments of the present invention have been shown and described, the present invention is not limited to the described embodiments. Instead, it would be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

Claims
[1] A method of generating a variable format code, the method comprising: setting the entire length of a code and a length of each of fields constituting the code, based on field number information associated with a number of the fields constituting the code and field length information associated with a length of each of the fields; and constructing the code based on the set entire length of the code and the length of each of the fields constituting the code.
[2] The method of claim 1, wherein, when the field number information is set to a particular value, at least one of the field length information and the number of fields is constructed using the particular value.
[3] The method of claim 1, wherein a number of pieces of the field length information is mapped with the number of fields.
[4] The method of claim 1, wherein the code comprises the fields, the field number information associated with the number of fields, and the field length information associated with the length of each field.
[5] An electronic recording medium comprising: field number information associated with a number of fields constituting a code; and field length information associated with a length of each field, wherein the electronic recording medium stores a variable format code where the entire length of the code and the length of each field is stored based on the field number information and the field length information.
[6] The electronic recording medium of claim 5, wherein the electronic recording medium comprises at least one of a computer-readable recording medium and a radio frequency identification (RFID) tag.
[7] The electronic recording medium of claim 5, wherein, when the field number information is set to a particular value, at least one of the field length information and the number of fields is constructed using the particular value.
[8] The electronic recording medium of claim 5, wherein a number of pieces of information associated with the length of each field is mapped with the number of fields.
EP08873504A 2008-03-21 2008-10-07 PROCESS FOR GENERATING CODE IN VARIABLE FORMAT Withdrawn EP2257915A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20080026491 2008-03-21
KR1020080049726A KR20090101037A (en) 2008-03-21 2008-05-28 How to generate variable structure code
PCT/KR2008/005882 WO2009116713A1 (en) 2008-03-21 2008-10-07 Method for generating variable format code

Publications (2)

Publication Number Publication Date
EP2257915A1 true EP2257915A1 (en) 2010-12-08
EP2257915A4 EP2257915A4 (en) 2012-09-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08873504A Withdrawn EP2257915A4 (en) 2008-03-21 2008-10-07 PROCESS FOR GENERATING CODE IN VARIABLE FORMAT

Country Status (3)

Country Link
EP (1) EP2257915A4 (en)
KR (1) KR20090101037A (en)
WO (1) WO2009116713A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101336855B1 (en) * 2012-04-20 2013-12-04 (주)네오위즈게임즈 Method, apparatus, and recording medium for generating code, and method and system for managing code

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5034914A (en) * 1986-05-15 1991-07-23 Aquidneck Systems International, Inc. Optical disk data storage method and apparatus with buffered interface
US5892910A (en) * 1995-02-28 1999-04-06 General Instrument Corporation CATV communication system for changing first protocol syntax processor which processes data of first format to second protocol syntax processor processes data of second format
KR100462060B1 (en) * 2001-12-21 2004-12-17 에스케이 텔레콤주식회사 UVLC Multiple Decoding Method
US7075462B2 (en) * 2002-08-07 2006-07-11 Lsi Logic Corporation Speeding up variable length code decoding on general purpose processors
US7205915B2 (en) * 2003-07-15 2007-04-17 Intel Corporation Method of decoding variable length prefix codes
US7631175B2 (en) * 2006-02-21 2009-12-08 Microsoft Corporation Control protocol for image enumeration and transfer
JP4829720B2 (en) * 2006-08-29 2011-12-07 ルネサスエレクトロニクス株式会社 Variable length code decoding device

Also Published As

Publication number Publication date
EP2257915A4 (en) 2012-09-19
WO2009116713A1 (en) 2009-09-24
KR20090101037A (en) 2009-09-24

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