Japanese postal barcode - Revision history

Artoria2e5: /* Utilities */

2020-11-04T17:16:20Z

‎Utilities

Artoria2e5: /* The scheme */

2020-11-04T17:15:04Z

‎The scheme

Artoria2e5 at 17:11, 4 November 2020

2020-11-04T17:11:11Z

Artoria2e5: /* Utilities */

2020-11-04T17:08:58Z

‎Utilities

Artoria2e5: /* Links */

2020-11-04T17:08:32Z

‎Links

Artoria2e5: /* The scheme */

2020-11-04T17:07:11Z

‎The scheme

Artoria2e5: /* The scheme */

2020-11-04T17:00:58Z

‎The scheme

Artoria2e5 at 17:00, 4 November 2020

2020-11-04T17:00:20Z

Artoria2e5: /* The scheme */

2020-11-04T16:58:05Z

‎The scheme

Artoria2e5 at 16:54, 4 November 2020

2020-11-04T16:54:20Z

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 * [http://barcode.tec-it.com/barcode-generator.aspx?group=BCGroup_Postal&barcode=JapanesePostal Barcode generator: Japanese postal bar code]
 ** [http://www.tec-it.com/download/PDF/Barcode_Reference_EN.pdf TEC-IT Reference] (Covers general information and address storage)
 == Links ==

← Older revision		Revision as of 17:15, 4 November 2020
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	== The scheme ==		== The scheme ==
−	There are no full descriptions of how the barcode works in English. The relevant article on Japanese Wikipedia, [[Wikipedia:ja:郵便追跡サービス]], has no information either. Someone with insider or reverse engineering knowledge is needed to figure this out.
−
	The start and end bars are FD and DF. Each character takes up three bars. Padding with TDA is performed to fill 20 chars.		The start and end bars are FD and DF. Each character takes up three bars. Padding with TDA is performed to fill 20 chars.

@@ Line 4: / Line 4: @@
 |image=Japanese-postal-barcode.png
 }}
-The '''Japanese postal barcode''' is used in mail sorting for Japan. It encodes an 7-digit postal/zip code plus an optional alphanumeric address code. The symbology allows the coding of the digits 0-9, letters A-Z, and hyphen. An alternative mode allows for pre-encoding SHIFT-JIS (CP936) as alphanumerics.
+The '''Japanese postal barcode''' is used in mail sorting for Japan. It encodes an 7-digit postal/zip code plus an optional alphanumeric address code. The symbology allows the coding of the digits 0-9, letters A-Z, and hyphen. The address code is simply the alphanumeric portion of a street address.
 This sort of bar code system is regarded as "four-state" because there are four types of bars, classified by presence of ascenders and/or descenders. This sort of system is transcribable using [[DAFT]] notation. These sorts of bar codes are used by a number of countries in their postal systems, though the specific symbologies by which they encode characters can vary.
@@ Line 15: / Line 15: @@
 == Utilities ==
 * [http://barcode.tec-it.com/barcode-generator.aspx?group=BCGroup_Postal&barcode=JapanesePostal Barcode generator: Japanese postal bar code]
-** [http://www.tec-it.com/download/PDF/Barcode_Reference_EN.pdf TEC-IT Reference] (Covers general information and CP932 transcription)
+** [http://www.tec-it.com/download/PDF/Barcode_Reference_EN.pdf TEC-IT Reference] (Covers general information and address storage)
 == Links ==

@@ Line 15: / Line 15: @@
 == Utilities ==
 * [http://barcode.tec-it.com/barcode-generator.aspx?group=BCGroup_Postal&barcode=JapanesePostal Barcode generator: Japanese postal bar code]
-** [http://www.tec-it.com/download/PDF/Barcode_Reference_EN.pdf TEC-IT Reference]
+** [http://www.tec-it.com/download/PDF/Barcode_Reference_EN.pdf TEC-IT Reference] (Covers general information and CP932 transcription)
 == Links ==

@@ Line 18: / Line 18: @@
 == Links ==
 * [https://web.archive.org/web/20071009170325fw_/http://www.dlsoft.com/dlHelps/helps/barcodes/japanpost.htm Japan Post bar code info]
 * [http://www.objectiflune.com/forum2/ubbthreads.php?ubb=showflat&Number=24459 Discussion of the encoding of these bar codes]
 * [http://homepage1.nifty.com/tabotabo/pzips/jp_post_zip.htm Japanese postal/zip code directory]

@@ Line 9: / Line 9: @@
 == The scheme ==
-There are no descriptions of how the barcode works in English. The relevant article on Japanese Wikipedia, [[Wikipedia:ja:郵便追跡サービス]], has no information either. Someone with insider or reverse engineering knowledge is needed to figure this out.
+There are no full descriptions of how the barcode works in English. The relevant article on Japanese Wikipedia, [[Wikipedia:ja:郵便追跡サービス]], has no information either. Someone with insider or reverse engineering knowledge is needed to figure this out.
-The code usually starts with FDFF and ends with FFDF, but this does not seem to hold for longer values. "TDA" stands for a padding control character.
+The start and end bars are FD and DF. Each character takes up three bars. Padding with TDA is performed to fill 20 chars.
 == Utilities ==

@@ Line 11: / Line 11: @@
 There are no descriptions of how the barcode works in English. The relevant article on Japanese Wikipedia, [[Wikipedia:ja:郵便追跡サービス]], has no information either.
-Each character appears to occupy three bar units. "TDA" stands for a padding control character.
+The code always starts with FDFF and ends with FFDF. "TDA" stands for a padding control character.
 == Utilities ==