发明授权
US5903257A Operating device and image processing system using same 失效
操作设备和图像处理系统使用相同

Operating device and image processing system using same
摘要:
An operating device is connected to an image processing apparatus that generates image data to be displayed on a display according to a program. The operating device supplies a signal for varying the image data to be generated by the image processing apparatus. A joystick includes a lever and a disc interlocked therewith, and the rotation of the disc is detected by a photo-interrupter. Pulses from the photo-interrupter are counted by a resettable counter. A reset signal is supplied to the counter when three buttons are simultaneously depressed, when a power supply is turned on, or otherwise when a signal is received from a CPU of the image processing apparatus.
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