JPS6178474U

JPS6178474U -

Info

Publication number: JPS6178474U
Application number: JP16317384U
Authority: JP
Priority date: 1984-10-30
Filing date: 1984-10-30
Publication date: 1986-05-26

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例のブロツク図、第２
図ａ，ｂはそれぞれ本実施例によるセンサの移動
速度およびセンサの位置の時間変化を示す図、第
３図は本考案の他の実施例のブロツク図、第４図
は第３図の動作を説明するためのフローチヤート
、第５図は本実施例に用いられを画像入力装置の
概略構成図、第６図は従来のモータ駆動装置を示
すブロツク図、第７図は従来のセンサの速度の時
間変化を示す図である。８…サーボモータ、６…パルスエンコーダ、１
５…モータ駆動回路、２１…ストツプ信号、２３
…アツプダウンカウンタ、２６…センサ読取り制
御回路、２７…スタート信号。 Figure 1 is a block diagram of one embodiment of the present invention;
Figures a and b are diagrams showing the moving speed of the sensor and time changes in the position of the sensor according to this embodiment, respectively. Figure 3 is a block diagram of another embodiment of the present invention, and Figure 4 shows the operation of Figure 3. Flowchart for explanation; FIG. 5 is a schematic configuration diagram of an image input device used in this embodiment; FIG. 6 is a block diagram showing a conventional motor drive device; and FIG. 7 is a diagram showing the speed of a conventional sensor. It is a figure showing a time change. 8... Servo motor, 6... Pulse encoder, 1
5...Motor drive circuit, 21...Stop signal, 23
...Up-down counter, 26...Sensor reading control circuit, 27...Start signal.

Claims

[Scope of utility model registration request]

In an image input device that reads two-dimensional image data by driving a one-dimensional line sensor at a constant speed by driving a motor, there is provided a means for stopping the rotation of the motor in response to an intermediate stop signal, and a means for stopping the rotation of the motor in response to a restart signal. means for rotating the motor by a predetermined amount in the reverse direction and then forward rotation; and means for detecting the amount of rotation of the motor in the positive and negative directions, and when the line sensor reaches the position at which the intermediate stop signal is generated, the line sensor detects the rotation amount of the motor in the positive and negative directions. 1. An image input device comprising means for starting reading by an image input device.