Image display controlling device
AssigneeRenesas Technology Corp.
InventorsMasaru Takahashi, Soichi Kobayashi, Toshiyuki Maruyama
Life of this patent
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Abstract
In displaying image data received from a camera module on a display device such as a view finder, image data having a size suited for display from an image size conversion circuit is displayed via line memories included in a signal-for-display generation circuit. Vertical synchronization in an image data storage including these line memories is established by initializing a reading address in accordance with a frame head pixel indication and a reading completion indication of one line in the line memories. It is possible to reduce power consumption of an image display system for displaying an image of a imaging subject.
Claims4
An image display controlling device comprising:
- an image storing unit having a plurality of line memories each for storing pixel data of one line on a screen;
- a data writing unit for receiving input image data and storing the received image data in said image storing unit;
- and
- a data reading unit for reading out stored pixel data from said image storing unit and transferring the read out pixel data to a display unit, said data reading unit initializing a reading position to a head position of said image storing unit at least in accordance with a screen head position pixel writing instruction from said data writing unit and a read completion indication indicating completion of reading of one line memory in the line memories.
Dependencies are inferred from the claim text.