Image display device

Details Image display device Image display device

1995-11-16

1997-11-25

Powell, Mark R.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345189, G09G 534

Patent

active

056917430

ABSTRACT:
An image display device includes: a first memory for storing an image data; transmitting unit for reading out a portion of the image data stored in the first memory from a position of a transmitting side address and transmitting the read image data; a second memory for receiving the image data from the transmitting unit and storing the transmitted image data from a position of a receiving side address, the second memory renewing the stored image data endlessly by cyclicly changing the receiving side address and overwriting the transmitted image data; a display unit for reading out the image data stored in the display memory from a position of a display start address and displaying the read image data on a screen thereof; scroll information receiving unit for receiving scroll information including a scroll direction and a scroll amount inputted by an operator; and control unit for determining the display start address, the receiving side address and the transmitting side address in accordance with the scroll information, the second memory having a storage capacity larger than a data capacity of image displayed on one screen of the display unit.

REFERENCES:
patent: 5053761 (1991-10-01), Webster, III
patent: 5208588 (1993-05-01), Nishiyama

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