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US 5,204,759 AGranted
Image processing apparatus
AssigneeCanon Kabushiki Kaisha
InventorsMasanori Sakai, Hiroyuki Horii, Takayuki Komine, Yasumichi Suzuki, Yoshinori Ikeda, Toshio Honma
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Abstract
An image processing apparatus reads an image and synthesizes it with another, standardized image signal supplied from outside the apparatus and stored in a memory provided in the apparatus.
Claims9
An image processing apparatus comprising:
- a) a memory requiring refreshing operation at a predetermined interval;
- b) a first synchronization system for generating synchronization signals for said refreshing operation;
- c) a second synchronization system not synchronized with said first synchronization system;
- and
- d) control means for prohibiting the refreshing operation in a cycle longer than said predetermined interval at the switching of said first and second synchronization system.
2 more elements
Dependencies are inferred from the claim text.