Apple Inc.

Mark Krueger

Bruce A Leak

Lee S Mighdoll

Anthony D Masterson

A method for determining if uncompressed color video data was previously compressed and decompressed. Each block of color video data is examined to determine if the block was previously compressed with a predetermined compression algorithm that for example, selected fewer colors than were present in the original data. If it is determined that such compression has previously occurred, on recompression, a different algorithm is used to prevent introduction of color distortions.

Color video data processing

A cache management system for a computer system having a central processing unit, a main memory, and cache memory including a memory management unit for transferring page size blocks of information, apparatus for reading information from main memory, apparatus for writing information to the cache memory, and apparatus for overlapping the write of information to the cache memory to occur during the read of information from the main memory.

Growing community of inventors

Cupertino, CA, United States of America

Mark Krueger