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				B-Type Data Format	(ETL8)


1. File Format (Fixed Record Length without Control Words)

                   <----------> Logical record ( 512 bytes) (1byte = 8bits)
     ------------------------------------------------------------------
     |   Dummy    |  Sample 1  |  Sample 2  |    ....    |  Sample N  |  (No. of records = N+1)
     ------------------------------------------------------------------


2. Contents of Logical Record (512 bytes)

 --------------------------------------------------------------------------------------------
|             |Number|        |                                                              |
|     Byte    |  of  |  Type  |            Contents of Logical Record                        |
|   Position  | Bytes|        |                                                              |
|============================================================================================|
|I   1 -    2 |    2 | Integer| Serial Sheet Number (greater than or equal to 1)             |
|D   3 -    4 |    2 | Binary | JIS Kanji Code (JIS X 0208)                                  |
|    5 -    8 |    4 | ASCII  | JIS Typical Reading ( ex. "AI.M" )                           |
|-------------|------|--------|--------------------------------------------------------------|
|    9 -  512 |  504 | Packed | 2 Level (1bit/pixel) Image Data                              |
|             |      |        | 64(X-axis size) * 63(Y-axis size) = 4032 pixels              |
 --------------------------------------------------------------------------------------------


app. Contents of Files

 --------------------------------------------------------------------------------------------
|  File    |  Number   | No. of |              |                                             |
|    Name  |    of     | Categ- |   JIS Code   |                                             |
|          |  Records  |  ories | (JIS X 0208) |                                             |
|============================================================================================|
| ETL8B2-1 | 1+  51200 |   320  |  2122 - 384D | '1+' means 1st record is dummy              |
|----------|-----------|--------|--------------|---------------------------------------------|
| ETL8B2-2 | 1+  51200 |   320  |  384E - 4250 |                                             |
|----------|-----------|--------|--------------|---------------------------------------------|
| ETL8B2-3 | 1+  50560 |   316  |  4253 - 4F43 |                                             |
|          |     + 956 | + 956  |  2122 - 4F43 | Last 956 samples = Model Images             |
 --------------------------------------------------------------------------------------------

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