Image processing circuit and display unit having the image proce

Details Image processing circuit and display unit having the image proce Image processing circuit and display unit having the image proce

1994-08-15

1998-10-13

Wu, Xiao

Computer graphics processing and selective visual display system

Computer graphic processing system

Plural graphics processors

345197, 345212, G09G 500

Patent

active

058219480

ABSTRACT:
An image processing circuit includes input terminals receiving image data as a first number of bits, a memory selectively storing the image data received at the input terminals and outputting the image data stored therein as a second number of bits, which is an integer multiple of the first number of bits, in response to a write signal which is synchronized to a memory clock signal, and a shift register selectively and in succession storing the image data output from the memory and outputting the image data stored therein as a third number of bits in response to a video clock signal which has a second frequency which is different from the first frequency of the memory clock signal and wherein the second number of bits is greater than the third number of bits.

REFERENCES:
patent: 4876663 (1989-10-01), McCord
patent: 4888582 (1989-12-01), Schnarel
patent: 4906985 (1990-03-01), Furlong
patent: 5313231 (1994-05-01), Yin et al.
patent: 5432905 (1995-07-01), Hsieh et al.

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