JPH02150873U

JPH02150873U -

Info

Publication number: JPH02150873U
Application number: JP5909289U
Authority: JP
Priority date: 1989-05-24
Filing date: 1989-05-24
Publication date: 1990-12-27

Description

[Brief explanation of drawings]

第１図は本発明によるイメージスキヤナの一実
施例のブロツク図、第２図は２相出力エンコーダ
の出力波形図、第３図は画像メモリの書き込み態
様の説明図、第４図は従来技術のイメージスキヤ
ナによる原稿の読取りと表示状態の説明図である
。１００……イメージスキヤナ本体、２００……
ホストコンピユータ、３００……原稿、１……イ
メージスキヤナ本体の制御装置、２……読み取り
開始スイツチ、３……イメージセンサ（ＣＣＤ）
出力処理回路、４……イメージセンサ（ＣＣＤ）
、５……光源（ＬＥＤ）、６……インターフエー
ス、１１……２相出力エンコーダ、７……演算制
御装置、８……画像メモリ、９……モニタ等の表
示装置。 Fig. 1 is a block diagram of an embodiment of an image scanner according to the present invention, Fig. 2 is an output waveform diagram of a two-phase output encoder, Fig. 3 is an explanatory diagram of the writing mode of the image memory, and Fig. 4 is a conventional technique. FIG. 3 is an explanatory diagram of the reading and display state of a document by the image scanner of FIG. 100...Image scanner main body, 200...
Host computer, 300... Original, 1... Image scanner main body control device, 2... Reading start switch, 3... Image sensor (CCD)
Output processing circuit, 4...image sensor (CCD)
, 5... Light source (LED), 6... Interface, 11... Two-phase output encoder, 7... Arithmetic control unit, 8... Image memory, 9... Display device such as a monitor.

Claims

[Scope of utility model registration request]

The self-scanning direction of the self-scanning image sensor is the main scanning direction, and the main body moving direction, which is approximately perpendicular to the main scanning direction, is the sub-scanning direction, and the image is read, and the read image signal is transferred to the image memory of the host computer. An image scanner for storing/displaying includes a two-phase output encoder that outputs two-phase signals having a phase difference with each other, and an output phase determination means that determines the phase relationship between each phase output of the two-phase output encoder. , detecting the direction of movement of the main body based on the mutual relationship of the output phases of the two-phase output encoder determined by the output phase determining means, and starting storing in the image memory the image signal read according to the detected movement direction; An image scanner characterized in that the image scanner is configured to display a document directly facing the document regardless of the moving direction of the main body by exchanging the position and the storage end position.