JPH0453368U - - Google Patents
Info
- Publication number
- JPH0453368U JPH0453368U JP9437690U JP9437690U JPH0453368U JP H0453368 U JPH0453368 U JP H0453368U JP 9437690 U JP9437690 U JP 9437690U JP 9437690 U JP9437690 U JP 9437690U JP H0453368 U JPH0453368 U JP H0453368U
- Authority
- JP
- Japan
- Prior art keywords
- memory
- platen roller
- white level
- white
- image data
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Facsimile Image Signal Circuits (AREA)
Description
第１図は本考案の画像読取装置の構成を示すブ
ロツク図、第２図は第１図の動作状態を示すフロ
ーチヤート、第３図、第４図は従来例を示すブロ
ツク図。
１……制御回路、２……メモリ、３……プラテ
ンローラ、５……密着型イメージセンサ、６……
２値化回路。
FIG. 1 is a block diagram showing the configuration of the image reading device of the present invention, FIG. 2 is a flowchart showing the operating state of FIG. 1, and FIGS. 3 and 4 are block diagrams showing a conventional example. 1...Control circuit, 2...Memory, 3...Platen roller, 5...Contact image sensor, 6...
Binarization circuit.
Claims (1)
メージセンサに圧接し画像データを読み取るよう
構成した画像読取装置に於いて、プラテンローラ
より読み取つた白レベルを記憶するメモリを設け
、装置のイニシヤルクリア時プラテンローラの白
レベルをメモリに書込み、画像データの読み取り
時メモリより読み出し２値化回路に白レベルとし
て設定する制御回路で構成した事を特徴とする画
像読取装置。 In an image reading device configured to read image data by pressing a white platen roller against a contact type image sensor with paper in between, a memory is provided to store the white level read from the platen roller, and when the device is initially cleared. An image reading device comprising a control circuit that writes a white level of a platen roller in a memory, reads it from the memory when reading image data, and sets it as a white level in a binarization circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9437690U JPH0453368U (en) | 1990-09-07 | 1990-09-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9437690U JPH0453368U (en) | 1990-09-07 | 1990-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0453368U true JPH0453368U (en) | 1992-05-07 |
Family
ID=31832270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9437690U Pending JPH0453368U (en) | 1990-09-07 | 1990-09-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453368U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60123167A (en) * | 1983-12-07 | 1985-07-01 | Canon Inc | Picture processing device |
| JPH01231570A (en) * | 1988-03-11 | 1989-09-14 | Canon Inc | Picture reader |
-
1990
- 1990-09-07 JP JP9437690U patent/JPH0453368U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60123167A (en) * | 1983-12-07 | 1985-07-01 | Canon Inc | Picture processing device |
| JPH01231570A (en) * | 1988-03-11 | 1989-09-14 | Canon Inc | Picture reader |
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