Movatterモバイル変換

[0]ホーム
URL:

[Unicode]Tech Site |Site Map |Search
 

Ideographic Research Group

(ISO/IEC JTC 1/SC 2/WG 2/IRG)


ISO


U+3106C

Convenor:Dr Ken LUNDE (小林剣)  • Chief Editor:CHEN Zhuang (陈壮)  • IWDS Editor:Yi BAI (白易)  • ORT Manager: Henry CHAN (陳輝恒)

Latest Document Register • Principles & Procedures


The Ideographic Research Group (IRG) is a subgroup of Working Group 2 (ISO/IEC JTC 1/SC 2/WG 2) of Subcommittee 2 (ISO/IEC JTC 1/SC 2) of Joint Technical Committee 1 (ISO/IEC JTC 1) under ISO (International Organization for Standardization) and IEC (International Electrotechnical Commission). The IRG is primarily tasked by WG 2 to develop and review Han ideograph (aka Chinese character) repertoires that consist of submissions from member bodies and liaison organizations. These repertoires are referred to as IRG working sets, which eventually become encoded and harmonized across both theISO/IEC 10646 (Universal Coded Character Set) standard and theUnicode Standard as new CJK Unified Ideographs extension blocks. The IRG also accepts and reviews other documents that deal with Han ideographs, such as Urgently Needed Character (UNC) proposals, horizontal extension proposals, disunification proposals, IRG source reference change proposals, and representative glyph change proposals.

Search the IRG home page and document register by entering one or more keywords into the search bar below:

Upcoming Meetings

The IRG meets twice a year. The Spring meeting is virtual (Webex), and the Fall meeting is hybrid, which requires a host for in-person attendees. If there is no host, the Fall meeting shall be virtual. The following are the upcoming meetings in chronological order (tentative/unconfirmed locations and dates are highlighted in yellow):

MeetingLocationDatesFirst CallLogisticsSchedule & AgendaRegistration DeadlineDocument Submission Deadline
66Virtual (Webex)2026-03-16/20IRG N2898N/AIRG N28992026-02-272026-02-27
67Tokyo, Japan (SAT) —hybrid2026-10-12/16   2026-09-182026-09-25
68Virtual (Webex)2027-03-15/19 N/A 2027-02-262027-02-26
69Ho Chi Minh City, Vietnam (Fulbright University) —hybrid2027-10-11/15   2027-09-172027-09-24

ThePast IRG Meetings Summary page provides a summary of past IRG meetings, and theWG 2 Summary Reports of IRG Meetings page provides a list of IRG Summary Reports that were submitted to WG 2.

Participation

IRG meetings are attended by experts appointed by member bodies, along with individual experts. The table below lists the active and inactive IRG member bodies (Category A and Category C liaison member bodies are indicated using superscript A or C, respectively):

ActiveInactive
Hong Kong SAR —HKITFC &ITCHKSARDemocratic People’s Republic of Korea (DPRK) —CSK
Macao SARJapan —JISC
People’s Republic of China (PRC) —SACMalaysia —DSM
Republic of Korea (ROK) —KATSSingapore —SSC
SAT Daizōkyō Text Database CommitteeC (SAT)
Taipei Computer AssociationC (TCA)
Unicode ConsortiumA (UTC)
United Kingdom (UK) —BSI
United States of America (US) —ANSI
Vietnam —STAMEQ

IRG Working Sets

The following table lists the recent IRG working sets in reverse chronological order with links to their Online Review Tools (ORTs), their status, their corresponding CJK Unified Ideographs extension blocks (if standardized), and the submissions from IRG member bodies:

Working SetStatusBlockSubmitters
2024Version 4.0 under review —see table belowTBDChina,ROK,SAT,TCA,UK,UTC,Vietnam
2021Standardized inUnicode Version 17.0 (2025)CJK Unified Ideographs Extension JChina,ROK,SAT,TCA,UK,UTC,Vietnam
2017Standardized inUnicode Version 15.0 (2022)CJK Unified Ideographs Extension HChina,ROK,SAT,TCA,UK,UTC,Vietnam
2015Standardized inUnicode Version 13.0 (2020)CJK Unified Ideographs Extension GChina,ROK,SAT,TCA,UK,UTC

IRG Working Set 2024 Review Assignments & Schedule

VersionSerial NumbersAssigneesComments DueResponses DueFont ProofsConsolidated Comments
4.0 —IRG N288700001 – 01166Hong Kong SAR, Japan, Macao SAR & Vietnam2026-02-062026-03-13SATIRG N2888 —unresolved
01167 – 02324China & SAT
02325 – 03488ROK & TCA
03489 – 04674UK & UTC
3.0 —IRG N280900001 – 01142UK & UTC2025-07-182025-09-26China,TCA,UK,VietnamIRG N2810
01143 – 02324Hong Kong SAR, Japan, Macao SAR & Vietnam
02325 – 03503China & SAT
03504 – 04674ROK & TCA
2.0 —IRG N275000001 – 01143ROK & TCA2025-02-072025-03-14TCA,UK,UTC,VietnamIRG N2751
01144 – 02333UK & UTC
02334 – 03513Hong Kong SAR, Japan, Macao SAR & Vietnam
03514 – 04674China & SAT
1.0 —IRG N269000001 – 01169China & SAT2024-09-202024-10-18China,ROK,SAT,TCA,UK,UTC,VietnamIRG N2726
01170 – 02333ROK & TCA
02334 – 03503UK & UTC
03504 – 04674Hong Kong SAR, Japan, Macao SAR & Vietnam

History

TheCJK Joint Research Group (CJK-JRG), which was established in 1990, was charged with developing the originalCJK Unified Ideographs block that included 20,902 Han ideographs in the range U+4E00 through U+9FA5. TheIdeographic Rapporteur Group (IRG) was formed on 1993-05-28 perResolution 3 (WG 2 Ideographic Rapporteur Group) on page one of documentSC 2 N2466 (Resolutions of 4th JTC 1/SC 2 Plenary Meeting held in Athens on May 27–28, 1993). The title ofIRG Rapporteur was changed toIRG Convenor in 2018. The IRG acquired its current name,Ideographic Research Group, on 2019-06-21 perRecommendation M68.17 (IRG Name Change) on page four of documentWG 2 N5054 (Recommendations from WG 2 meeting 68), which was instigated by documentIRG N2381 (Jenkins & Lunde) andRecommendation IRG M52.12 (Renaming of IRG) on page four of documentIRG N2360. The table below lists the history of the IRG Convenors and IRG Rapporteurs in reverse chronological order:

YearsMeetingsIRG ConvenorIRG Rapporteur
2024–present63–presentKen LUNDE (小林剣)
2018–202451–62LU Qin (陸勤)
2004–201823–50LU Qin (陸勤)
1995–20045–22ZHANG Zhoucai (张轴材)
1994/53 & 4KIDO Akio (木戸彰夫)
1993/41 & 2KATO Shigenobu (加藤重信)

 

Access to Copyright and terms of use
[8]ページ先頭
©2009-2026 Movatter.jp