DICOM PS3.5 2020d - Data Structures and Encoding

H Character Sets and Person Name Value Representation in the Japanese Language (Informative) (Current)
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# H Character Sets and Person Name Value Representation in the Japanese Language (Informative)

## H.1 Character Sets for the Japanese Language

The purpose of this section is to explain the character sets for the Japanese language.

### H.1.1 JIS X 0201

JIS X 0201 has the following code elements:

- ISO-IR 13 Japanese katakana (phonetic) characters (94 characters)

- ISO-IR 14 Japanese romaji (alphanumeric) characters (94 characters)

JIS X 0201 defines a 7-bit romaji code table (ISO-IR 14), a 7-bit katakana code table (ISO-IR 13), and the combination of romaji and katakana as an 8-bit code table (ISO-IR 14 as G0, ISO-IR 13 as G1).

The 7-bit romaji (ISO-IR 14) is identical to ASCII (ISO-IR 6) except that bit combination 05/12 represents a yen sign and bit combination 07/14 represents an over-line. These are national Graphic Character allocations in ISO 646.

The Escape Sequence for ISO/IEC 2022 is shown for reference in Table H.1-1 (for the Defined Terms, see PS3.3).

Table H.1-1. ISO/IEC 2022 Escape Sequence for ISO-IR 13 and ISO-IR 14

| ISO-IR 14 | ISO-IR 13
--- | --- | ---
G0 set | ESC 02/08 04/10 | ESC 02/08 04/09
G1 set | ESC 02/09 04/10 | ESC 02/09 04/09

### Note

1. Table H.1-1 does not include the G2 and G3 sets that are not used in DICOM. See Section 6.1.2.5.1.

2. Defined Terms ISO_IR 13 and ISO 2022 IR 13 for the value of the Specific Character Set (0008,0005) support the G0 set for ISO-IR 14 and G1 set for ISO-IR 13. See PS3.3.

### H.1.2 JIS X 0208

JIS X 0208 has the following code element:

- ISO-IR 87: Japanese kanji (ideographic), hiragana (phonetic), and katakana (phonetic) characters (942 characters, 2-byte).

### H.1.3 JIS X 0212

JIS X 0212 has the following code element:

- ISO-IR 159: Supplementary Japanese kanji (ideographic) characters (942 characters, 2-byte)

The Escape Sequence for ISO/IEC 2022 is shown for reference in Table H.1-2 (for the Defined Terms, see PS3.3)

Table H.1-2. ISO/IEC 2022 Escape Sequence for ISO-IR 87 and ISO-IR 159

| ISO-IR 87 | ISO-IR 159
--- | --- | ---
G0 set | ESC 02/04 04/02 | ESC 02/04 02/08 04/04
G1 set | ESC 02/04 02/09 04/02 | ESC 02/04 02/09 04/04

### Note

1. The Escape Sequence for the designation function G0-DESIGNATE 94-SET, has first I byte 02/04 and second I byte 02/08. There is an exception to this: The second I byte 02/08 is omitted if the Final Byte is 04/00, 04/01 or 04/02. See ISO/IEC 2022.

2. The table does not include the G2 and G3 sets that are not used in DICOM. See Section 6.1.2.5.1.

3. Defined Term ISO 2022 IR 87 for the value of the Specific Character Set (0008,0005) supports the G0 set for ISO-IR 87, and Defined Term ISO 2022 IR 159 supports the G0 set for ISO-IR 159. See PS3.3.

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DICOM PS3.5 2020d - Data Structures and Encoding